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OPTICAL TRANSCEIVER

Subclass of:

398 - Optical communications

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
398139000 Including optical fiber or waveguide 88
398136000 Including compensation 32
398138000 Single device as transmitter and receiver 13
398137000 Including feedback 10
Entries
DocumentTitleDate
20090196626Receiver optical sub-assembly and optical receiver module - A receiver optical sub-assembly includes a multilayered ceramic substrate mounted on an electrically conductive base. The multilayered ceramic substrate has a ground layer on the front surface. A light receiving element is mounted on the front surface of the multilayered ceramic substrate. A cap and the electrically conductive base enclose the multilayered ceramic substrate and the light receiving element. An electrically conductive body connects the ground layer to the electrically conductive base. Terminals are attached to the back surface of the multilayered ceramic substrate. The terminals project outside the electrically conductive base. A high frequency noise propagates from the ground layer to the base through the electrically conductive body. A sufficient amount of ground potential is obtained. Self-resonance is prevented. The multilayered ceramic substrate enables an enhanced density of the terminals based on a wiring pattern or patterns and a via or vias.08-06-2009
20090196625OPTICAL TRANSCEIVER MODULE HAVING A LATCHING BAIL MECHANISM THAT USES A CAM LOCK CONFIGURATION - An optical transceiver module is provided that has a pivoting bail latching mechanism that is extremely stiff and locks via a cam locking configuration rather than relying on spring-loading forces to bias the latching mechanism to and maintain the latching mechanism in a desired position. The stiffness of the pivoting bail latching mechanism provided by the cam locking configuration better ensures that forces exerted the transceiver module will not cause the transceiver module to come out of the cage while latched.08-06-2009
20090196624PHOTOSENSOR OPERATING POINT - The subject matter disclosed herein relates to determining a photosensor operating point.08-06-2009
20110194858Hot-pluggable transceiver flash memory media reader/writer, systems, methods, apparatus, networks and devices - Diverse operational and functional combinations of hot pluggable transceivers, flash, and similar, media cards and other devices, networks, network portions, systems and methods, and memory card reader/writer devices and apparatus, are provided. Networks, network portions, modules, devices, apparatus and methods utilizing the numerous possible combinations of these elements, including software, and to their many advantages and embodiments, are also provided. The inventions relate also to software-enabled operational and functional systems, modules, networks, devices, apparatus and methods utilizing numerous possible combinations of software with these elements and to their many advantages and embodiments08-11-2011
20100142967Reference Clock Rate Detection for Variable Rate Transceiver Modules - A system and method are provided for determining an optical signal frequency range in an optical/electrical transceiver. The method receives an optical receive signal having a non-predetermined data rate via a network interface, and also receives an electrical reference clock signal having a non-predetermined frequency via a framer interface. The reference clock signal frequency is cross-referenced to an optical receive signal frequency. In one aspect a clock and data recovery (CDR) voltage controlled oscillator (VCO) is selected having an output frequency matching the cross-referenced optical receive signal frequency. The optical receive signal is converted to an electrical receive signal. Initially, the VCO is frequency-locked to the reference clock. Subsequent to frequency-locking the VCO output frequency, the converted optical signal is phase-locked, generating a receive data clock. The CDR supplies a converted optical receive signal and receive data clock to the framer interface.06-10-2010
20120183301BUILDING ILLUMINATION APPARATUS WITH INTEGRATED COMMUNICATIONS, SECURITY AND ENERGY MANAGEMENT - An LED light and communication system includes one or more optical transceivers that have a light support having a plurality of light emitting diodes and one or more photodetectors attached thereto, and a processor in communication with the light emitting diodes and the one or more photodetectors. The processor is constructed and arranged to generate a communication signal. The one or more optical transceivers are engaged to a lighting fixture within a building. The one or more optical transceivers are constructed and arranged to communicate with a name tag.07-19-2012
20090154934Optical Transceiver Method and Apparatus - An optical transceiver (06-18-2009
20080205896POSITIONING PLATE FOR OPTICAL SUBASSEMBLY - In one example, an optical subassembly positioning plate is provided that includes a substantially flat body that defines at least one edge. A port is defined in the body. The port is configured to receive and secure an optical subassembly in an x-direction and a y-direction when said optical subassembly positioning plate is positioned within an optoelectronic transceiver module. A plurality of fingers is defined along at least one edge of the body. Each of the plurality of fingers is configured to contact a shell of the optoelectronic transceiver module so as to bias a flange of the optical subassembly against a portion of the shell of the optoelectronic transceiver module such that the optical subassembly is substantially retained in a z-direction when the optical subassembly positioning plate is positioned within the optoelectronic transceiver module.08-28-2008
20100046954OPTOELECTRONIC TRANSCEIVER ASSEMBLY AND RELEASE MECHANISM EMPLOYED THEREIN - An optoelectronic transceiver module includes a cage, a transceiver module and a release mechanism. The cage defines an opening and includes a retaining tab formed around the opening. A retaining hole is defined in the retaining tab. The transceiver module received in the cage through the opening includes a first surface and a second surface opposite to the first surface. A fixed latch disposed on the first surface mates with the retaining hole so as to lock the transceiver module in the cage. The release mechanism includes a release trigger and a release lever inflexibly connected together. The release lever is disposed between the retaining tab and the transceiver module. The release trigger abuts the second surface. When the release trigger is pressed towards the second surface, the release lever is subsequently driven to disengage the fixed latch from the retaining tab.02-25-2010
20100098427EMI SHROUD FOR A PLASTIC RECEIVE OPTICAL SUBASSEMBLY - The principles of the present invention provide for a plastic ROSA that has a metallic EMI shroud covering a portion of the plastic ROSA. The combination of the plastic ROSA and the EMI shroud provides the unexpected result of having EMI shielding substantially similar to a metal ROSA.04-22-2010
20130051808Method And System For Bandwidth Enhancement Using Hybrid Inductors - A method and system for bandwidth enhancement using hybrid inductors are disclosed and may include a complementary metal oxide semiconductor (CMOS) transceiver providing an electrical impedance that increases with frequency via hybrid inductors comprising a transistor, a capacitor, an inductor, and a resistor. A first terminal of the hybrid inductors may comprise a first terminal of the transistor. A second terminal of the transistor may be coupled to a first terminal of the resistor and a first terminal of the capacitor. A second terminal of the resistor may comprise a second terminal of the hybrid inductors. A third terminal of the transistor may be coupled to a first terminal of an inductor, and a second terminal of the inductor may be coupled to a second terminal of the capacitor. The hybrid inductors may be configured by varying transconductance, resistance, and/or capacitance and may be utilized as an amplifier load.02-28-2013
20120219300SINGLE-WAVELENGTH BIDIRECTIONAL FIBER OPTICAL LINK WITH BEAM-SPLITTING ELEMENT - An optical transceiver and method for bidirectionally communicating optical signals in an optical transceiver involve an optical element that bidirectionally separates incoming and outgoing optical signals of the same wavelength. The optical element can be a diffractive element such as a grating or, alternatively, a partially reflective element such as a transparent block having a thin-film coating.08-30-2012
20130071125Communicating Between an Optical Receiver and an Optical Transmitter Using a Serial Bus - An optical receiver, within a first device, may receive first configuration information from an optical transmitter, also within the first device. While receiving the first configuration information, the optical receiver may operate according to a clock. Later, the optical receiver may receive optical data from a second device according to the first configuration. While receiving the optical data from the second device, the optical receiver does not operate according to the clock, wherein the optical receiver not operating according to the clock allows the optical receiver to receive the optical data with greater sensitivity.03-21-2013
20130071126BIDIRECTIONAL OPTICAL TRANSMITTING AND RECEIVING DEVICE - Disclosed is a bidirectional light transmitting and receiving device which includes a first conductive plate; a second conductive plate; at least one first lead pin which penetrates the first conductive plate and includes a first conductor and a first dielectric surrounding the first conductor; at least one second lead pin which penetrates the second conductive plate and includes a second conductor and a second dielectric surrounding the second conductor; a light receiving unit which is connected with the at least one first lead pin; and a light transmitting unit which is connected with the at least one second lead pin, wherein the first conductive plate is electrically isolated from the second conductive plate.03-21-2013
20100080567PARALLEL OPTICAL TRANSCEIVER MODULE HAVING A BALANCED LASER DRIVER ARRANGEMENT - A parallel optical transceiver module is provided that has a balanced laser driver arrangement. The balanced laser driver arrangement of the invention includes at least two laser diode driver ICs, which preferably are located on opposite sides of a laser diode IC. Each laser diode driver IC drives a subset (e.g., half) of the total number of laser diodes of the laser diode IC. Because each laser diode driver IC drives a subset of the total number of laser diodes of the laser diode IC, the pitch (i.e., distance) between the high-speed signal pathways within the laser diode driver ICs can be increased. Increasing the pitch between the high-speed signal pathways provides several advantages, including, for example, reducing the potential for electrical cross-talk and inductive coupling between adjacent wire bonds that connect the output driver pads on the driver IC to the respective input pads on the laser diode IC.04-01-2010
20090092399MONOLITHIC SHELL FOR AN OPTICAL ELECTRICAL DEVICE - An optoelectronic transceiver module. The optoelectronic module is a monolithic, one-piece module shell that includes a top portion, a bottom portion, a first side portion, a second side portion, and a front portion. The top portion, bottom portion, first side portion, second side portion and the front portion define a cavity configured to enclose electro-optical circuitry. In addition, the top portion and the bottom portion are configured such that the top portion is not separable from the bottom portion. Further, the front portion defines at least one of an optical transmit port or an optical receive port.04-09-2009
20120189314MULTI-LASER TRANSMITTER OPTICAL SUBASSEMBLY - Multi-laser transmitter optical subassembly (TOSA). In one example embodiment, a method of fabricating a multi-laser TOSA includes various acts. First, first and second optical signals are transmitted from first and second lasers, respectively. Next, the angle of a first collimating lens is actively adjusted to cause the second optical signal to be aligned with the first optical signal as the first optical signal passes through a first filter and as the second optical signal is reflected by the first filter such that the first and second optical signals are aligned and combined.07-26-2012
20090269076SYSTEMS AND METHODS FOR OPTICAL RECEIVER DECISION THRESHOLD OPTIMIZATION - The present invention provides systems and methods for a receiver threshold optimization loop to provide self-contained automatic adjustment in a compact module, such as a pluggable optical transceiver. The receiver threshold optimization loop utilizes a performance metric associated with the receiver, such as FEC, to optimize performance of the receiver. The receiver is optimized through a change in the receiver threshold responsive to the performance metric. Advantageously, the present invention provides improved receiver performance through a continuous adjustment that is self-contained within the receiver, such as within a pluggable optical transceiver compliant to a multi-source agreement (MSA). The receiver threshold optimization loop can include a fine and a coarse sweep of adjustment from an initial setting.10-29-2009
20090269075ELECTRO-OPTICAL ASSEMBLY AND METHOD FOR MAKING AN ELECTRO-OPTICAL ASSEMBLY - An electro-optical assembly (EA) is provided in which the transmitter and receiver components are integrated together on a single circuit board, which is encapsulated in a single molded EA package. Integrating the transmitter and receiver components on a single circuit board allows the size and complexity of the EA to be greatly reduced as compared to the traditional TO-can and FOT architectures. A standard semiconductor inline automation system and process may be used to manufacture the EA packages so that they may be mass produced with improved throughput, yield and quality as compared to the method currently used to manufacture and assemble the known EA used in the traditional TO-can and FOT architectures.10-29-2009
20090269077PLUGGABLE TRANSCEIVER WITH BI-DIRECTIONAL OPTICAL SUB-ASSEMBLY - An optical transceiver is disclosed, in which the transceiver installs a BOSA and has an additional heat conducting path from the BOSA to the cover and to the base independent of the path from the IC to the cover. The optical transceiver includes a heat conductor that comes in thermally contact with the BOSA, the cover and the base. The heat conductor, which is made of metal sheet, has a ceiling piece that comes in contact with the cover and a pair of legs with the bottom surface that comes in contact with the base in both sides of the BOSA.10-29-2009
20130101298OUT OF BAND DATA TRANSFER OVER OPTICAL CONNECTIONS - Provided herein are various schemes for transmitting out of band (OOB) signals over optical connections that may not support the transmission of such signals. One scheme may involve converting the OOB signals to different types of signals that are supported by the optical connection, while another scheme may utilize a separate parallel connection that supports the transmission of out of band signals in order to extend the optical connection. Yet another scheme modulates the reference clock of the original (in-band) signal to transmit and receive the OOB information.04-25-2013
20090047026Asymmetric Scheduling of Multiple Analog Inputs Using A Single A/D Converter For Fiber-Optic Transceivers - A firmware control method for the optimized use of a single A/D converter to measure multiple analog signals with asymmetric requirements on sampling rate including a lookup table design procedure and an acquisition algorithm. Since diagnostic analog parameter values require differing sampling rates to be effectively measured, the schedule for converting those values to digital value should correspond to the associated sampling rate. The present invention involves the creation and subsequent implementation of a scheduling table based on the required sampling rates of the operational parameters to be converted.02-19-2009
20090047025Multiple Electrical Level Dispersion Tolerant Optical Apparatus - An optical apparatus consisting of a transmitter, receiver, or transceiver, utilizing a multiple level special electrical layer modulation and/or demodulation scheme to significantly lower the bandwidth required for high speed communication and/or parallel interconnect systems. It can be used either to enhance the transmission performance of the transceiver, or to eliminate the need for bulky and/or expensive optical components to lower the cost. It can be used in the design of transponders, transceivers, and active cabling systems, for 10 Gb/s, 40 Gb/s, 100 Gb/s and other high bit rate transmission systems that utilize single mode or multi-mode fibers for serial or parallel transmission of high speed optical signals.02-19-2009
20090047024OPTICAL TRANSCEIVER MODULE HAVING A FRONT FACET REFLECTOR AND METHODS FOR MAKING AND USING A FRONT FACET REFLECTOR - A reflector for use in an optical transceiver module and methods for making and using the reflector are provided. The methods for making the reflector reduce the amount of processing and handling of the wafer that are required, thereby reducing manufacturing costs and increasing yield. The reflector may have a diffraction-inducing structure formed thereon such that light received from the light source is redirected in a plurality of directions, including toward a lens that couples light into an end of a transmit fiber and in at least one other direction for being sensed by a detector that converts the detected light into electrical energy.02-19-2009
20100119234MILLIMETER WAVE TRANSCEIVING SYSTEM AND REFLECTING PLATE - A millimeter wave transceiving system 05-13-2010
20090010654Communication link apparatus and method for maintaining visibility in visible light communication - A system and method for continuing a communication link while maintaining visibility in visible light communication. A frame is transmitted by a sender for establishing a communication link before data transmission to a receiver by a sender. A receiver sends a response frame that reports on establishment of the communication link prior to data transmission by the sender. A data frame containing information is transmitted by the sender to the receiver. An acknowledgment frame is transmitted to the sender in response to the data frame. A disconnect frame is transmitted by the sender which is acknowledged by the receiver. A visible sequence is transmitted during a time period when the sender and the receiver do not transmit respective frames for communication to maintain visibility between two devices that may be communicating otherwise by, for example, infrared communication.01-08-2009
20090010653Optical module - According to an aspect of the embodiment, an optical module includes a case, an optical transceiver part in the case, a radiating part on the case; a thermal conductive sheet having a property of transferring and having a first end and second end; a first fixing part for fixing the first end of the thermal conductive sheet to the optical transceiver unit; and a second fixing part for fixing the second end of the thermal conductive sheet to the radiating point.01-08-2009
20090010652OPTICAL MODULE AND OPTICAL TRANSCEIVER - The present invention provides an optical communication module and the like in which a plurality of lead terminals necessary for the optical communication module is collected in one direction to effectively process the increased internal wiring. A plurality of lead terminals are arranged in a projecting manner over two stages of upper and lower stages at one end of a package 01-08-2009
20100209112PLUGGABLE OPTICAL TRANSCEIVER MODULE SET - A pluggable optical transceiver module set includes an optical signal male connector with an elastic flake with an opening thereon, and an optical signal female connector with a bump, a holding rod and a driven element. When the optical signal male connector is plugged into the optical signal female connector, the bump is fastened in the opening, and the optical signal male connector is disconnected from the optical signal female connector when the holding rod is moved to rotate the driven element to press the elastic flake and release the bump from the opening.08-19-2010
20090087188Compact Optical Transceivers Including Thermal Distributing and Electromagnetic Shielding Systems and Methods Therefor - An optical transceiver includes structures that define an electrical connector port for allowing connection of an electrical connector to an optical subassembly of the transceiver, and structures that define a vent surrounding at least portions of the connector port, whereby the vent allows bidirectional passage of air therethrough. Included in the transceiver are structures that define electromagnetic interference shielding and selectively transfer heat of heat generating electronic components by conduction to a transceiver housing. Methods of cooling the transceiver by ventilation and internal heat conduction are present.04-02-2009
20090123157PRINTED CIRCUIT BOARD ASSEMBLY CARRIER FOR AN OPTICAL ELECTRICAL DEVICE - A printed circuit board assembly (PCBA) carrier for enclosing an optical transceiver PCBA. The PCBA carrier includes a base portion including one or more first connection members, the base portion being configured to receive an optical transceiver PCBA and a top portion including one or more second connection members configured to couple to the first connection members to thereby secure the top portion to the base portion, the top portion being configured to reside above the optical transceiver PCBA when the first and second connection members are coupled. The PCBA carrier is further configured to enclose the optical transceiver PCBA when the base and top portions are coupled to provide a solid structure for the optical transceiver PCBA without the need for a separate optical transceiver module housing.05-14-2009
20120189316LED LIGHT INTERIOR ROOM AND BUILDING COMMUNICATION SYSTEM - An LED light and communication system in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver. The optical transceiver includes a light support having a plurality of light emitting diodes and at least one photodetector attached thereto, and a processor. The processor is in communication with the light emitting diodes and the at least one photodetector. The processor is constructed and arranged to generate a communication signal. The at least one optical transceiver is engaged to a clock, and the clock is in communication with the broadband over power line communications system.07-26-2012
2011013531240G/100G OPTICAL TRANSCEIVERS WITH INTEGRATED FRAMING AND FORWARD ERROR CORRECTION - The present disclosure provides integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); and alarming in optical transceivers, such as multi-source agreement (MSA)-defined modules. The present disclosure includes an optical transceiver defined by an MSA agreement with integrated PM and alarming for carrier-grade operation. The integration preserves the existing MSA specifications allowing the optical transceiver to operate with any compliant MSA host device. Further, the host device can be configured through software to retrieve the PM and alarming from the optical transceiver. The optical transceiver can include CFP and variants thereof (e.g., future CFP2, CDFP, CXP), OIF-MSA-100GLH-EM-01.0, CCRx (Compact Coherent Receiver), Quad Small Form-factor Pluggable (QSFP) and variants thereof (e.g., future QSFP+, QSFP2), 10×10 MSA, XFP, XPAK, XENPAK, X2, XFP-E, SFP, SFP+, 300-pin, and the like.06-09-2011
20090003832LED LIGHT BROAD BAND OVER POWER LINE COMMUNICATION SYSTEM - An LED light and communication system is in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver. The optical transceiver includes a light support having a plurality of light emitting diodes and at least one photodetector attached thereto, and a processor. The processor is in communication with the light emitting diodes and the at least one photodetector. The processor is constructed and arranged to generate a communication signal.01-01-2009
20110299855Optical subassembly and manufacturing method thereof - An optical subassembly comprises a transmitter optical subassembly, a receiver optical subassembly, and an electronic assembly connected with the transmitter optical subassembly and the receiver optical subassembly respectively. The transmitter optical subassembly comprises an optical source and an optical source driver driving the optical source; the receiver optical subassembly comprises a photodetector and a control module connecting with the photodetector, and the control module is integrated with a transimpedance amplifier and a limiting amplifier; and the electronic assembly comprises a printed circuit board and a microcontroller formed thereon, and the microcontroller connects with the laser driver and the control module respectively. The present invention can achieve a high integration that is beneficial to the high speed transmission, simplify the layout design of the PCB, and decrease the manufacturing cost.12-08-2011
20120099871OPTICAL COMMUNICATION CARD AND OPTICAL TRANSMISSION DEVICE - There arises a problem that power consumption increases along with an increasing throughout of an FEC function effective in speeding up of a transmission speed. FEC function information necessary for a system is prepared, and multiple FEC functions are properly used according to a selected transmission line, etc.04-26-2012
20120099870RECEPTACLE DIPLEXER - A pluggable bi-directional optical transceiver may include: a transmitting laser diode, for transmitting an optical signal according to a received electronic signal; an optical sensor, for receiving the optical signal and for generating the electronic signal according to the received optical signal; a fiber adapter, having a ceramic ferrule with two 8-degree end-face corners; a coupling portion, having three different openings for respectively receiving the transmitting laser diode, the optical sensor, and one end of the ceramic ferrule so an optical axis of a transmitting light of the transmitting laser diode is configured to deflect about 3.8 degrees with an optical axis of the ceramic ferrule; and an engaging portion, having a hollow shell for receiving another end of the ceramic ferrule and an engaging piece surrounding outside the shell for pluggably connecting an external fiber piece.04-26-2012
20110293283Dual Rate Receiving Device - A dual rate receiving device is provided, which is applicable to an optical transceiver module, and includes a dual rate optical receiving component, a channel switching circuit, a low-speed limiting amplifier data path, and a high-speed limiting amplifier data path. The dual rate optical receiving component further includes a photodetector and a dual rate trans-impedance amplifier, the channel switching circuit further includes a first controllable switch, a second controllable switch, a third controllable switch, and a fourth controllable switch, the low-speed limiting amplifier data path further includes a low-speed limiting amplifier, and the high-speed limiting amplifier data path further includes a high-speed limiting amplifier. The technical solution is adopted, so that while an optical receiving component is working at the most suitable rate, a limiting amplifier data path at a corresponding working rate can be selected, so as to implement a high sensitivity.12-01-2011
20110293284OPTICAL MODULE AND OPTICAL COMMUNICATION SYSTEM - The present disclosure discloses an optical module and optical communication system. The optical module includes an upper housing (12-01-2011
20110293282OUT OF BAND DATA TRANSFER OVER OPTICAL CONNECTIONS - Provided herein are various schemes for transmitting out of band (OOB) signals over optical connections that may not support the transmission of such signals. One scheme may involve converting the OOB signals to different types of signals that are supported by the optical connection, while another scheme may utilize a separate parallel connection that supports the transmission of out of band signals in order to extend the optical connection. Yet another scheme modulates the reference clock of the original (in-band) signal to transmit and receive the OOB information.12-01-2011
20120020671BI-DIRECTIONAL PARALLEL OPTICAL LINK - A system is disclosed. The system includes a first optical transceiver having a first set of transmitters and a first set of receivers and a second optical transceiver having a second set of transmitters coupled anti-symmetrically to the first set of receivers of the first optical transceiver and a second set of receivers coupled anti-symmetrically to the first set of transmitters of the first optical transceiver.01-26-2012
20080232812OPTICAL COMMUNICATION DEVICE - An optical communication device includes a top cover, a bottom cover, a circuit board and an electrostatic discharge element. The bottom cover is disposed opposite to the top cover, and an accommodating space is formed between the top and bottom covers. The circuit board is disposed in the accommodating space. The electrostatic discharge element is disposed on the circuit board and electrically connected to the circuit board.09-25-2008
20090097857DOWNHOLE OPTICAL COMMUNICATION SYSTEM AND METHOD - Disclosed herein is a downhole optical communication system. The system includes, at least one optical transmitter and at least one optical receiver. The at least one optical receiver is in operable communication with the at least one optical transmitter such that wellbore fluid is passable between the at least one optical transmitter and the at least one optical receiver, the at least one optical receiver is receptive of light emitted from the at least one optical transmitter and information encoded therein.04-16-2009
20120189315OPTICAL TRANSMISSION SYSTEM AND APPARATUS - There is provided an optical transmission system including a first optical transmission apparatus configured to have a first transmission mode in which a first signal is transmitted at a first optical level, and a second transmission mode in which a second signal is transmitted at a second optical level after an operation in the first transmission mode, the first optical level being lower than the second optical level, and a second optical transmission apparatus configured to have a third transmission mode in which a response signal to the first signal is transmitted at the first optical level to the first optical transmission apparatus, and a fourth transmission mode in which a response signal to the second signal is transmitted at the second optical level to the first optical transmission apparatus after an operation in the third transmission mode.07-26-2012
20090136234TRANSCEIVER MODULE SLEEP MODE - In one embodiment, an apparatus comprising an optical transmitter, having an optical transmitter portion and an electrical transmitter portion, and configured to convert an electrical signal to an optical signal, and transmit the optical signal; an optical receiver, having an optical receiver portion and an electrical receiver portion, configured to receive an optical signal and convert the optical signal to an electrical signal; a passive power controller configured to passively detect whether or not a cable is coupled with the optical transmitter and, if not, to place at least the optical transmitter portion in a sleep mode.05-28-2009
20090148169CALIBRATION - A system, including an optical source configured to emit optical signals, and an optical receiver configured to receive optical signals; a housing having one or more optical windows; a user-detachable reflector attached to the housing, configured to enable emitted optical signals exiting an optical window to be reflected, so that the optical signals re-enter the housing via an optical window for reception by the optical receiver; and a calibrator configured to calibrate an output of the optical receiver using optical signals received by the optical receiver.06-11-2009
20090041467Field-Configurable Optical Network Terminal Device - Described herein are systems and methods for a field-configurable optical network terminal (ONT) device at a subscriber to provide one or more communication services to the subscriber. The field-configurable ONT device is of a modular design operable for the insertion of additional communication modules or removal of existing communication modules from the ONT device for scaling the device to increased or decreased communication capacity as desired.02-12-2009
20110200336AVIONICS EQUIPMENT WITH OPTICAL CONTACT AND AVIONICS SYSTEM COMPRISING SUCH EQUIPMENT - An avionics device able to be installed on board an aircraft, including means of processing information and a connector able to receive and/or transmit information, the aforementioned connector including an electrical coupling interface able to transmit and/or receive information in the form of electrical signals, and an electro-optical connection interface able to convert electrical signals into optical signals and to transmit information in the form of optical signals and/or receive information in the form of optical signals and convert these optical signals into electrical signals.08-18-2011
20080240723Systems and methods for chirp control of a dual arm Z-modulator to minimize dispersion effect of fiber plant - The present invention provides systems and methods for chirp control of a dual arm Z-modulator to minimize dispersion in the fiber plant. The chirp control is based upon a real-time control loop based upon performance monitoring data between a transmitter and a receiver. Advantageously, the present invention enables improved performance in high-speed optical systems, and in some cases can eliminate or minimize the need for external dispersion compensation fiber (DCF).10-02-2008
20090297159HIGH DENSITY ACTIVE MODULAR OPTOELECTRONIC DEVICE FOR USE WITH PUSH-RELEASE MECHANISM AND METHOD FOR USING SAME - Super miniature TFF and TFP active modular optoelectronic components are based on an optical interface that is three times less than the size of SFF/SFP components and about six times smaller than an SC based component and thus provides a density that is three times higher than LC interfaces. The invention provides substantially smaller photonic devices that can be used with substantially smaller optoelectronic components and combines the new optoelectronic components with the new smaller miniature interconnect systems such as the Push-Release type using the same interface. The new interface can be used with sub-millimeter or larger diameter ferrules. Photonic devices are mounted in a close proximity of the active end of a fiber stub thereby avoiding the need for lenses and active alignment and enabling use in active hermetic or non-hermetic subassemblies.12-03-2009
20090297162Optical communication base station, optical signal conversion apparatus, and optical signal conversion method - An optical communication base station which receives an upstream optical signal having an upstream bit rate specific to each one of a plurality of lower order communication units from a corresponding one of the plurality of lower order communication units, and which transmits a downstream optical signal having a downstream bit rate specific to each one of the plurality of lower order communication units to a designated one of the plurality of lower order communication units, includes; a first optical signal conversion unit which changes the bit rate of the upstream optical signal and thereby converts the upstream optical signal into a fixed bit-rate inter-station optical signal; and a second optical signal conversion unit which converts the inter-station optical signal into the downstream optical signal by changing the bit rate of the inter-station optical signal according to the designated one of the plurality of lower order communication units.12-03-2009
20100278539EJECTOR APPARATUS AND ASSOCIATED ASSEMBLY METHOD FOR PLUGGABLE TRANSCEIVERS - The present disclosure relates to a novel ejector apparatus for pluggable transceivers, such as transceivers defined by multi-source agreements (MSAs) including SFP, SFP+, XFP, and the like. The ejector apparatus utilizes a shrouded design where the ejector apparatus encapsulates the top, sides, and bottom of a pluggable transceiver thereby allowing an operator to grasp any side of the ejector apparatus to actuate engagement prongs. In keeping with MSA guidelines, the ejector apparatus utilizes prongs to disengage a locking mechanism in order for the kick out springs to release the module. Advantageously, the ejector apparatus enables high density placement of corresponding transceivers, allows access from all sides of the transceiver for ejection, and allows cables to remain connected to the transceiver during ejection.11-04-2010
20090290881OPTICAL COMMUNICATION APPARATUS AND OPTICAL TRANSCEIVER THEREOF - An optical transceiver disposed within a cage includes a main body, a handle and a sliding element. The handle is coupled with the main body. The sliding element is secured to the handle and has an arm which is slidably disposed in a track of the main body. When the handle is rotated, the sliding element slides along the track.11-26-2009
20090297160Optical transceiver - An optical transceiver stores an output A/D value which is A/D-converted from reference voltage in an EEPROM as correction data in preparing the optical transceiver. The optical transceiver, receiving a request for outputting a monitored value from an external device connected therewith, calculates a variation based on difference between the output A/D value which is A/D-converted from the reference voltage at the timing when the request for outputting the monitored value is received and the correction data stored in the EEPROM. Then, the optical transceiver uses the calculated variation to convert current of light-input power which is input thereinto into voltage, amplify the voltage, and A/D-convert the voltage to thereby correct the output A/D value. The optical transceiver outputs the corrected A/D value to the connected external device as the monitored value.12-03-2009
20090297161Optical transmission apparatus with clock selector - An optical transmission apparatus includes a first transceiver unit coupled to a first node, a second transceiver unit coupled to a second node, an electrical signal processing unit provided between the transceiver units, a first transmission clock generating unit configured to generate a clock used by the second transceiver unit based on a clock of a signal arriving through the first node, a second transmission clock generating unit configured to generate a clock used by the first transceiver unit based on a clock of a signal arriving through the second node, a selector configured to select an output clock of the first transmission clock generating unit at a time of optical input interruption at the second node, and a frequency dividing unit configured to produce a frequency-divided clock obtained by dividing frequency of the output clock selected by the selector for provision to the second transmission clock generating unit.12-03-2009
20100111539TRANSCEIVER MODULE AND INTEGRATED CIRCUIT WITH DUAL EYE OPENERS - A transceiver module having integrated eye diagram opening functionality for reducing jitter is described. The transceiver module may include a transmitter eye opener and a receiver eye opener integrated in a single circuit. The transceiver module may also include serial control and various other integrated components. Other functionalities that may be integrated on the transceiver module include loopback modes, bypass features, bit error rate testing, and power down modes.05-06-2010
20080212972MOLDED COMMUNICATIONS MODULE HAVING INTEGRATED PLASTIC CIRCUIT STRUCTURES - An embodiment disclosed herein relates to a communications module. The communications module includes a body composed of a plastic resin and a plurality of conductive traces and contact pads defined on a portion of a surface of the body. The module also includes at least one substantially vertical ridge defined on the body surface, and at least one pocket defined on the body suitable for receiving an electronic component. The communications module may also include a body composed of a plastic resin and conductive features defined on a surface of the body configured to render the communications module operable without implementing a printed circuit board as part of the body. Additional embodiments relate to systems and methods for attaching one or more optical transmit assemblies to the communications module and for electrically connecting conductive traces in a temporary fashion on the surface of the body of the communications module.09-04-2008
20120294623OPTICAL TRANSCEIVER MODULE FOR CONTROLLING POWER IN LANE - Disclosed is an optical transceiver module for controlling power in each lane. The optical transceiver module includes: a plurality of transmitting units formed in each lane in order to transmit signals to receive electric signals in each lane, convert the received electric signals into optical signals, and transmit the converted optical signals, respectively; a first switching means turning on/off power supplied to each of the plurality of transmitting units in each lane; a plurality of receiving units formed in each lane to receive optical signals in each lane, convert the received optical signals into electric signals, and output the converted electric signals, respectively; a second switching means turning on/off power supplied to each of the plurality of receiving units in each lane; and a control means controlling switching operations of the first switching means and the second switching means.11-22-2012
20080304833Illumination Light Wireless Communication System - The present disclosure discloses an illumination light wireless communication system. The system is designed for illumination and communication with a remote communication apparatus, and comprises an illumination and communication device, an illumination and communication terminal and a communication terminal. The illumination and communication device is adapted to receive a source signal from the remote communication apparatus, convert the source signal into an optical signal, and carry out wireless transmission by the optical signal. The illumination and communication terminal is adapted to convert the optical signal into an electric signal and transmit the electric signal to the communication terminal. The communication terminal is adapted to receive and process the electric signal from the illumination and communication terminal, or transmit the processed electric signal to the illumination and communication terminal, i.e., perform a reverse transmission.12-11-2008
20080310851Optical transceiver with reduced peak power consumption and a method to reduce peak power consumption - A method to reduce a peak power consumption of an optical transceiver including a thermoelectric cooler (TEC) is disclosed. The transceiver includes three power units, one of which powers the temperature control unit including the TEC driver and the TEC, second one of which powers the transmitter unit including an LD and an LD driver, and the last of which powers the receiver unit. Once the transceiver is set in the host system, the transceiver first activates the first and second power units to start up the temperature control unit and the transmitter unit, and subsequently, the transceiver sets up the third power unit after the temperature of the LD is stabilized at a target temperature.12-18-2008
20110268454LD DRIVER WITH AN IMPROVED FALLING EDGE OF DRIVING SIGNAL AND OPTICAL TRANSMITTER PROVIDING THE SAME - An LD driver to generate an asymmetrical driving current with a relatively faster falling edge and an optical transmitter having the LD driver are disclosed. The LD driver includes a primary driver and the sub-driver connected in parallel to the primary driver. The primary driver converts the input signal or the delayed signal delayed from the input signal into the primary current. The sub-driver generates a symmetrical current tracing the input or the delayed signal, and an asymmetrical current formed by the OR operation between the input and delayed signals. The driving current is formed by adding the primary current, the symmetrical current and the asymmetrical current.11-03-2011
20080317475LED LIGHT INTERIOR ROOM AND BUILDING COMMUNICATION SYSTEM - An LED light and communication system in communication with a broadband over power line communications system. The LED light and communication system includes at least one optical transceiver. The optical transceiver includes a light support having a plurality of light emitting diodes and at least one photodetector attached thereto, and a processor. The processor is in communication with the light emitting diodes and the at least one photodetector. The processor is constructed and arranged to generate a communication signal. The at least one optical transceiver is engaged to a clock, and the clock is in communication with the broadband over power line communications system.12-25-2008
20080205895OPTICAL SUBASSEMBLY POSITIONING DEVICE FOR AN ELECTRONIC MODULE - In one example embodiment, an optical subassembly (OSA) positioning device includes a front piece, a top back piece, and a top connector piece connecting the front piece and the top back piece, a bottom back piece, and a bottom connector piece connecting the from piece ad the bottom back piece. The front piece defines a first port. The first port is configured to receive and substantially secure a first OSA in an x-axis position and a y-axis position when the OSA positioning device is positioned within an optoelectronic module. The top and bottom connector pieces are deformable in response to an exerted force so as to bias a flange of the first OSA against a shell of the optoelectronic module such that the first OSA is secured in a z-axis position when the OSA positioning device is positioned within the optoelectronic module.08-28-2008
20080219673Optical Transceiver with Reduced Height - A transceiver having a light source die, a photodetector die and a substrate is disclosed. The substrate has a first well in which the light source die is mounted and a second well in which the photodetector die is mounted. The substrate has a reflective surface which blocks light leaving the light source from reaching the photodetector unless the light is reflected by an object external to the transceiver. The reflecting surface of the second well in the substrate is shaped to concentrate light received from outside the transceiver onto the photodetector, and in one aspect of the invention it comprises a non-imaging optical element. The light source is powered by applying a potential between first and second contacts on the light source die. A signal is generated between first and second contacts on the photodetector die in response to illumination of the photodetector die.09-11-2008
20090162072Transmission apparatus and method of switching phase lock reference frequency signal thereof - An optical transmission apparatus according to the present invention connects a terminal apparatus side in which a transmission line is formed by, for example, SONET/SDH, and a WDM side in which a transmission line is formed by, for example, OTU3. The optical transmission apparatus according to the present invention includes a selector that, when an input signal is interrupted or switched, controls a PLL unit so as to switch and obtain a clock signal of a predetermined frequency oscillated by an OSC, corresponding to a frequency of a clock signal of the input signal before being divided to input into the PLL unit, as a clock signal to generate a PLL reference frequency.06-25-2009
20130216236MANAGED OPTICAL COMPUTER NETWORK DEVICE - A managed optical communication network device selectively passes or blocks an optical signal from an input port to an output port, based on state of the device. The device state may be managed remotely by sending management commands, according to a communication protocol, to the device. The device may be remotely controlled to selectively cut off all optical communications between two nodes, such as between two computers, between a local area network and a router, or between a router and a wide area network.08-22-2013
20090136235Probe card with optical transmitting unit and memory tester having the same - Example embodiments provide a probe card having an optical transmitting unit and a memory tester having the probe card. The probe card may include a plurality of needles connected to test terminals formed in a memory, a plurality of first terminals connected to the needles, a plurality of second terminals connected to the outside and corresponding to the first terminals, and an optical transmitting unit. The optical transmitting unit may connect the first terminals and the second terminals.05-28-2009
20090116845TETINTELLIGENT OPTICAL TRANSCEIVER CAPABLE OF OPTICAL-LAYER MANAGEMENT - An integrated optical transceiver includes an optical receiver that receives a first optical signal that comprises input user data and a first modulation signal. The first modulation signal includes first management information. The optical receiver can output a first electrical signal comprising the first modulation signal and to output a second electrical signal comprising the input user data in response to the first optical signal. A processing unit can demodulate the first electrical signal to extract the first management information. The processing unit can produce a modulation control signal in response to second management information. An optical transmitter can output a second optical signal in response to the modulation control signal and a third electrical signal comprising output user data.05-07-2009
20090208222OPTICAL TRANSCEIVER, ITS COMMUNICATION METHOD, AND COMMUNICATION SYSTEM - An optical transceiver includes an optical transmission section that transmits an optical signal, an optical reception section that receives an optical signal, and a control section that controls the optical transmission section and the optical reception section. The control section optically communicates with an external device through the optical transmission section and the optical reception section.08-20-2009
20110142453OPTICAL TRANSCEIVER AND METHOD FOR CONTROLLING THE SAME - An optical transceiver includes: a transmission unit configured to convert a first electrical signal into a first optical signal and transmit the converted first optical signal; a first power supply unit configured to supply power to the transmission unit; and a controller configured to control the first power supply unit, wherein the controller controls an operation of the first power supply unit according to whether or not the first electrical signal is inputted to the transmission unit.06-16-2011
20090116846PROTOCOLS FOR OUT-OF-BAND COMMUNICATION - Methods for managing an optical network through out-of-band communication between optical transceiver modules in a heterogeneous network fabric are disclosed. The disclosed methods include methods for performing fabric discovery, communicating error messages, detecting intrusion. Methods are also disclosed for communicating between transceivers of differing protocol versions and memory capacity.05-07-2009
20090047027Optical Network Unit Transceiver Module Having Direct Connect RF Pin Configuration - Systems and method for using a direct connect RF pin configuration for an ONU transceiver module to connect directly to an external component. The ONU module communicates with an optical network. The ONU module further includes an RF interface and a direct connect RF pin configuration to communicate using RF signals. In one embodiment, the direct connect RF pin configuration includes two ground pins and a data pin which are spaced apart and directly connected to a PCB of the ONU. The opposing ends of the pins are directly connected to a PCB of an external component, such as an ONU host box. The pins are thus spaced apart such that they do not impede each others' function and available for direct connection to the external component.02-19-2009
20100183315POWER SUPPLY MODULE OF OPTICAL NETWORK TERMINAL SYSTEM - A power supply module includes a backup battery unit and a power supply unit. The backup battery unit has at least one first engaging element. The power supply unit has at least one second engaging element mating with the first engaging element. After the second engaging element is engaged with the first engaging element, the power supply unit is detachably connected with the backup battery unit.07-22-2010
20100239266METHOD AND APPARATUS FOR IMPLEMENTING NON-BLOCKING COMPUTER INTERCONNECTION NETWORK USING BIDIRECTIONAL OPTICAL SWITCH - According to an embodiment of the present disclosure, a bidirectional communications system includes a first non-blocking network including a bidirectional optical switch, a plurality of nodes, a plurality of optical transceivers connected between the bidirectional optical switch and the plurality of nodes, each optical transceiver including a transmitter, a receiver and an optical combiner, and a second network connected to at least one of the nodes and the at least one at least one bidirectional optical switch for control of a crossconnect.09-23-2010
20110058819OPTICAL TRANSMISSION DEVICE - Provided is an optical transmission device which includes: an optical transmission unit including a light-emitting element; an optical reception unit including a static current source generating bias current for driving the light-emitting element; a light-transmitting medium optically connecting the light-emitting element and a light-receiving element to each other; and an electricity-transmitting medium transmitting the bias current from the static current source to the light-emitting element.03-10-2011
20110058818OPTICAL TRANSCEIVER ASSEMBLY WITH INTEGRATED AMPLIFIER & TRANSMITTER DRIVER ON A FLEXIBLE CIRCUIT - A flexible circuit assembly is described that integrates a first fiber optic die, for example a transmitter die, a second fiber optic die, for example a receiver die, a trans-impedance amplifier die and a transmitter driver die on a single flexible circuit. Alignment holes and multiple die are accurately placed on a single flexible circuit. The precise placement of alignment holes and fiber optic die facilitate micron alignment accuracy to a fiber optic connector, preferably a mechanical transfer (MT) connector. A heat sink is provided that transfers heat from the trans-impedance amplifier die and the transmitter driver die and isolates the fiber optic die from the heat source. Circuitry for the first fiber optic die, second fiber optic die, impedance die, and driver die, including isolated grounding circuitry, is also integrated on the flexible circuit assembly.03-10-2011
20100254710EARLY SELF-VALIDATION OF PERSISTENT MEMORY DURING BOOT IN AN OPTICAL TRANSCEIVER - An operational optical transceiver configured to self-validate a boot image loaded from the persistent memory early in the boot process. The optical transceiver includes a persistent memory, a controller, and a system memory. The controller initializes the boot process and begins to load information from the persistent memory to the system memory. Next, the controller detects early in the boot process boot image verification data in the information being sent to the system memory. The controller then determines if the boot image verification data has an expected value. If the verification data includes the expected value, the controller continues the boot process. If the verification data does not include the expected value, the controller will retry the boot process a predetermined number of times and will enter a default operational state if the expected value is not detected while retrying the boot process the predetermined number of times.10-07-2010
20100166431OPTICAL TRANSCEIVER IC - A power management arrangement for low power optical transceiver such as those that may be integrated into a personal computer or server may periodically put itself into a power conservation or sleep mode which assures the transceiver is available upon wake-up.07-01-2010
20120141134TRANSPONDER FOR AN OPTICAL COMMUNICATIONS SYSTEM AND OPTICAL COMMUNICATIONS SYSTEM - A transponder is adapted to communicate with a further transponder over at least one optical channel. The transponder comprises a first receiver having a monitor and a first transmitter. The first receiver is configured to receive a first signal transmitted by a second transmitter of the further transponder over the optical channel. The monitor is configured to provide at least one channel parameter describing the optical channel in dependence on the received first signal. The first transmitter is configured to transmit the at least one channel parameter to the further transponder for adjusting a pre-equalizer of the further transponder.06-07-2012
20090074423Method and apparatus for configuring an optical network terminal - Separating Passive Optical Network (PON) functions in different mechanical devices, such as optical to electrical conversion of the PON protocol, allows installation of an optical termination device at an exterior of an installation premises and installation of a user interface device performing PON functions inside the installation premises. Various embodiments allow service providers first to install an optical device outside the premises and, later, to install an electrical device, optionally by a customer. This eliminates a service provider from entering the installation premises and enables the customer to complete installation in the interior of the installation premises. Further, more robust, hardened components may be used in the more-permanently installed exterior device, while less-expensive, lower-quality components may be used in the easily-replaceable indoor device, thus reducing cost.03-19-2009
20130136458OPTICAL TRANSCEIVER HAVING ENHANCED EMI TOLERANCE - An optical transceiver that attenuates the EMI radiation leaked therefrom is disclosed. The optical transceiver includes a top cover and the bottom base to form a cavity into which a TOSA, a ROSA, and a circuit are set. At least one of the top cover and the bottom base provides a combed structure in a rear portion of the optical transceiver, where the combed structure has a plurality of T-shaped fins to attenuate the EMI radiation.05-30-2013
20100166430Broadcast optical interconnect using a MEMS mirror - Methods and apparatus are described for optical interconnection. A method includes reconfiguring a free space broadcast interconnection including repositioning a micro electromechanical system mirror. An optical interconnect system comprises: at least two processing elements, each of said processing elements comprising: at least one optical signal transmitter; at least one optical signal receiver on the same support structure as the transmitter; and at least one MEMS mirror to provide the capability of optically connecting the emitter and transmitter.07-01-2010
20100322636OPTICAL TRANSCEIVER - An optical transceiver which converts a plurality of optical signals input from a first side into electrical signals so as to output the electrical signals to a second side and converts a plurality of electrical signals input from the second side into optical signals so as to output the optical signals to the first side.12-23-2010
20110150494OPTICAL TRANSCEIVER AND PACKAGING METHOD THEREOF - An optical transceiver includes a substrate, a positioning seat, a plurality of laser components, a bracket and a plurality of lenses. The positioning seat is installed on the substrate and includes a pair of positioning posts and a plurality of receiving holes between the positioning posts. The laser components pass through the receiving holes and are installed on the substrate. The bracket includes a top cover and one or more sidewalls. The one or more sidewalls surround the positioning seat and the plurality of laser components. The top cover defines a pair of positioning holes engaged with the pair of positioning posts to position the bracket corresponding to the positioning seat. The lenses are installed on the top cover of the bracket and correspond to the plurality of laser components on the substrate.06-23-2011
20090263139Method and apparatus for increasing voice service for an optical network terminal (ONT) - An Optical Network Terminal (ONT) has a fixed number of voice ports. A system employing an example embodiment of the invention increases the number of voice ports without changing hardware in the ONT by employing an Analog Terminal Adaptor (ATA) expander and configuring the ATA expander through use of a Session Initiation Protocol (SIP) and other network resources already available in a network with which the ONT is associated. The ATA expander is configured to be compatible with the ONT and, thus the ONT can increase voice services without hardware changes to support growing demands by customers for access to voice services via increasing number of Customer Premises Equipment (CPE).10-22-2009
20120243876USE OF SEMICONDUCTOR OPTICAL AMPLIFIERS-BASED INTENSITY MODULATOR IN SIGNAL TRANSMISSION - The present invention discloses the use of a semiconductor optical amplifier in a transceiver in order to increase the number of end users without reducing the bandwidth allocated to each user.09-27-2012
20090245807OPTICAL POWER MONITORING CIRCUIT, OPTICAL TRANSCEIVER, OPTICAL MODULE, OPTICAL RECEIVER, AMPLIFIER CIRCUIT, AND INTEGRATED CIRCUIT - Optical power monitoring capable of achieving a wide dynamic range and high-speed response is realized. An optical power monitoring circuit includes: a first amplifier (TIA 10-01-2009
20090257754FORM FACTOR ADAPTER MODULE - Various example embodiments are disclosed. According to one example embodiment, a form factor adapter module may include a small form factor (SFF) host connector, an X2 or XENPAK edge finger connector, and a serial to XAUI transceiver. The SFF host connector may be configured receive a small form factor pluggable (SFP or SFP+) module and to transmit and receive data according to a Serial Gigabit Media Independent Interface (SGMII) or Serializer-deserializer Framer Interface (SFI) protocol. The X2 or XENPAK edge finger connector may be configured to mate with an X2 or XENPAK edge finger socket and to transmit and receive data according to a Ten Gigabit Ethernet Attachment Unit Interface (XAUI) protocol. The serial to XAUI transceiver may be coupled to both the SFF host connector and the X2 or XENPAK edge finger connector. The serial to XAUI transceiver may be configured to convert data between the SGMII or SFI protocol and the XAUI protocol.10-15-2009
20100008675INTEGRATED TRANSCEIVER WITH LIGHTPIPE COUPLER - Systems and methods for configuring an integrated transceiver are disclosed. In one embodiment, very small form factor transceivers can be configured to allow 10 G optical interconnects over distances up to 2 km. Transceiver circuitry can be integrated on a single die, and be electrically connected to a transmitter such as a laser-diode and a receiver such as a photo-diode. In one embodiment, the laser and photo diodes can be edge-operating, and be mounted on the die. In one embodiment, one or both of the diodes can be surface-operating so as to allow relaxation of alignment requirement. In one embodiment, one or both of the diodes can be mounted on a submount that is separate from the die so as to facilitate separate assembly and testing. In one embodiment, the diodes can be optically coupled to a ferrule via an optical coupling element so as to manage loss in certain situations.01-14-2010
20100054749COMBINATION NETWORK FIBER CONNECTOR AND LIGHT PIPE - Exemplary embodiments of the invention relate to an optical transceiver in which the base portion is made of a light permeable material and configured to emit light representative of the status of certain transceiver parameters. The transceiver includes a housing which at least partially encloses the base portion. The base portion connects to a printed circuit board on which a light-emitting diode is mounted. Light from the light-emitting diode is conducted to front portion of the base, which is light permeable, through a light-pipe assembly, thereby illuminating the entire front portion of the base. Because the front portion of the base is not enclosed within the housing the light emitted is clearly visible from a distance even when fiber connectors are plugged into the transceiver receptacles.03-04-2010
20090028574SELF-TESTING OPTICAL TRANSCEIVER - Systems and methods for an optical transceiver module to perform one or more diagnostic self-tests without the assistance of a host computing system. The optical transceiver module includes at least one processor, a persistent memory and a system memory. The persistent memory, which is coupled to the at least one processor, contains microcode. The microcode is loaded from the persistent memory to the system memory and executed by the at least one processor. The executed microcode causes the optical transceiver module to perform one or more diagnostic self-tests. The diagnostic result data of the one or more diagnostic self-tests is then stored in the persistent memory and is formatted for analysis. The formatted data may then be analyzed to ascertain the response of the optical transceiver to changes in its test environment.01-29-2009
20100129083PARALLEL OPTICAL TRANSCEIVER MODULE THAT UTILIZES A FOLDED FLEX CIRCUIT THAT REDUCES THE MODULE FOOTPRINT AND IMPROVES HEAT DISSIPATION - A parallel optical transceiver module is provided that uses a folded flex circuit arrangement that reduces the footprint of the transceiver module while also providing the module with improved heat dissipation characteristics. In addition, the manner in which components are mounted on the flex circuit facilitates assembly of the module, reducing the overall cost of the module while improving manufacturing yield.05-27-2010
20110249976POLARIZATION DIVERSITY OPTICAL SYSTEM DEVICE, DEMODULATOR AND TRANSCEIVER - A polarization diversity optical system device includes: a polarization split unit that splits a first coherent light into a first split light and a second split light whose polarization components are orthogonal to each other, and splits a second coherent light into a third split light and a fourth split light whose polarization components are orthogonal to each other; and alight combining unit that combines the first split light with one of the third split light and the fourth split light, and combines the second split light with the other of the third split light and the fourth split light.10-13-2011
20110081152High-Speed Receiver Architecture - A receiver (e.g., for a 10G fiber communications link) includes an interleaved ADC coupled to a multi-channel equalizer that can provide different equalization for different ADC channels within the interleaved ADC. That is, the multi-channel equalizer can compensate for channel-dependent impairments. In one approach, the multi-channel equalizer is a feedforward equalizer (FFE) coupled to a Viterbi decoder, for example a sliding block Viterbi decoder (SBVD); and the FFE and/or the channel estimator for the Viterbi decoder are adapted using the LMS algorithm.04-07-2011
20110150495VECTOR SUM PHASE SHIFTER, OPTICAL TRANSCEIVER, AND CONTROL CIRCUIT - A vector sum phase shifter includes a 90° phase shifter (06-23-2011
20090022497HIGH-SPEED OPTICAL TRANSCEIVER FOR INFINIBAND AND ETHERNET - The present invention provides a high-speed 100G optical transceiver for InfiniBand and Ethernet with associated mapping to frame InfiniBand and Ethernet into GFP-T. The optical transceiver utilizes an architecture which relies on standards-compliant (i.e., multi-sourced) physical client interfaces. These client interfaces are back-ended with flexible, programmable Field Programmable Gate Array (FPGA) modules to accomplish either InfiniBand or Ethernet protocol control, processing, re-framing, and the like. Next, signals are encoded with Forward Error Correction (FEC) and can include additional Optical Transport Unit (OTU) compliant framing structures. The resulting data is processed appropriately for the subsequent optical re-transmission, such as, for example, with differential encoding, Gray encoding, I/Q Quadrature encoding, and the like. The data is sent to an optical transmitter block and modulated onto an optical carrier. Also, the same process proceeds in reverse on the receive side.01-22-2009
20080247761Pluggable optical transceiver with command line pulled up to external power supply - A pluggable optical transceiver with a function not affecting the command status of the host system appeared in the internal bus, which is coupled with the command line within the transceiver, even when the transceiver is plugged in the host system. The optical transceiver provides a power supply circuit and a control unit. The power supply circuit, by receiving an external electric power, generates an internal electric power with a substantial time lag from a moment when the optical transceiver is plugged in the host system. The control unit communicates with the host system through the command line pulled up to the external electric power within the optical transceiver.10-09-2008
20090324238Single-fiber bidirectional optical transmitter/receiver - A single-fiber bidirectional optical transmitter/receiver includes a single-fiber bidirectional optical transmission/reception device. A circuit board has a signal processing circuit and a drive circuit configured to drive the single-fiber bidirectional optical transmission/reception device. A main housing accommodates the single-fiber bidirectional optical transmission/reception device and the circuit board. A ground part of a reception side of the single-fiber bidirectional optical transmission/reception device is electrically connected to a ground part of a transmission side of the single-fiber bidirectional optical transmission/reception device through a ground wiring pattern formed on a flexible printed board.12-31-2009
20090324237PLUGGABLE OPTICAL NETWORK UNIT CAPABLE OF STATUS INDICATION - A pluggable optical network unit includes a transceiver assembly configured to produce a first electrical signal in response to a first optical signal comprising reception signal data and to emit a second optical signal comprising transmission signal data in response to a second electrical signal. A data processing unit can extract the reception signal data from the first electrical signal and produce the second electrical signal in response to the transmission signal data. An interface unit can receive the reception signal data from the data processing unit, serialize the reception signal data, and send a third electric signal comprising the reception signal data to a network device that the pluggable optical network unit is plugged into. A management unit can modify the third electric signal in accordance to the operation status of at least one of the transceiver assembly or the data processing unit.12-31-2009
20090317087Configurable control for network device operation - A network device can encounter operating conditions that have potential to affect upstream communications adversely for another network device, as well as for the upstream communications or hardware of the network device itself. A network device according to an example embodiment of the present invention is configured to determine when such conditions occur, and, in response, modify the behavior of the device so as to maintain the integrity of upstream communications and the network device. Network robustness is improved through the example embodiment, and fewer service calls are experienced by service providers.12-24-2009
20090317086OPTICAL TRANSCEIVER MODULE AND METHOD OF CONTROLLING OPTICAL TRANSCEIVER MODULE - An optical transceiver module for transmitting and receiving an optical signal with a plurality of channels includes timing generator for sequentially generating timing instructions defining different start-up time points, and powering controller for effecting a control such that power supply to at least a portion of circuit components associated with the respective channels is sequentially started in accordance with the timing instructions generated by the timing generator. Current to be instantaneously necessitated when a power switch is turned on or when a power restoration is made from power saving operation modes can be suppressed.12-24-2009
20090317088OPTICAL SPACE TRANSFER APPARATUS USING IMAGE SENSOR - A transmission device includes a first light emission unit having a light source for emitting one optical signal. A reception unit includes an X-Y address system image sensor, having a pixel region including a plurality of pixels, for receiving the optical signal by the pixel region; a classification unit for creating classification information representing a pixel group including pixels, among the plurality of pixels, which are irradiated with the optical signal; and a control unit for controlling the X-Y address system image sensor in accordance with the classification information to simultaneously read signals of the pixels belonging to the pixel group.12-24-2009
20090185809Irda transceiver module that also functions as remote control IR transmitter - The infrared LED of an IrDA module transmits IR energy with a peak wavelength (for example, 875 nm) appropriate for IrDA communication. This peak wavelength is lower than is the wavelength (for example, 940 nm) used in ordinary IR remote controls (RC). The IrDA LED does, however, transmit some energy at the wavelength of the peak sensitivity of an RC receiver. When making an IrDA transmission, the IrDA LED is driven with a lower amount of current. When making an RC transmission, the IrDA LED is driven with an increased amount of current such that higher wavelength emissions received by the RC receiver are of adequate power to realize RC communication. A passive circuit is disclosed for automatically increasing IrDA LED current during RC transmissions. The circuit involves an inductor that shunts current around a current-limiting resistor used to limit LED drive current.07-23-2009
20080205894OPTICAL MODULE FOR OPTICALLY COUPLING OPTICAL FIBER AND SURFACE OPTICAL DEVICE - An optical module including a first optical device having an opening on a surface thereof, and a second optical device including a pillar-shaped elastic member on a surface thereof. The first and second optical devices are optically coupled to each other.08-28-2008
20110262147SMALL FORM FACTOR PLUGGABLE TRANSCEIVER MODULE - SDI - The present invention relates to small form factor pluggable (SFP) transceiver modules. The SFP transceiver module of the present invention comprises a cage corresponding to SFP dimensions, at least one serial digital interface for receiving and/or transmitting an electrical signal, at least one signal conditioning unit for conditioning a received signal, and a host connector for receiving and/or transmitting a conditioned signal.10-27-2011
20080219674OPTICAL SPACE TRANSMISSION DEVICE INCLUDING ROTATABLE MEMBER - An optical space transmission device includes: a first portion; and a second portion which is rotatably connected to the first portion and performs space transmission of signals using light between the first portion and the second portion. The device includes: a first light emitting and receiving module which is provided for the first portion and includes: a first light emitting element composed of a light emitting diode emitting first signal light modulated based on a signal transmitted from the first to second portion; and a first light receiving element receiving second signal light modulated based on a signal transmitted from the second to first portions; and a second light emitting and receiving module which is provided for the second portion and includes: a second light emitting element composed of a semiconductor laser emitting the second signal light; and a second light receiving element receiving the first signal light.09-11-2008
20100284698TRANSCEIVER SYSTEM ON A CARD FOR SIMULTANEOUSLY TRANSMITTING AND RECEIVING INFORMATION AT A RATE EQUAL TO OR GREATER THAN APPROXIMATELY ONE TERABIT PER SECOND - An optical transceiver system is provided that comprises multiple parallel transceiver modules that are mounted on a card. The transceiver card is small in terms of spatial dimensions, has very good heat dissipation characteristics, and is capable of simultaneously transmitting and receiving data at a rate equal to or greater than approximately one Tb per second (1 Tb/s). A plurality of the transceiver systems may be interconnected to achieve a communications hub system having even higher bandwidths. In addition, the transceiver system may be configured such that each card has a routing controller mounted thereon for performing router functions. The router functions include, for example: causing signals received by one transceiver module on the card to be routed to and transmitted by another of the transceiver modules; causing signals received by one transceiver module on the card to be retransmitted by the same transceiver module over one of it's optical transmit channels; and causing signals received by one transceiver module on the card to be routed to and transmitted by a transceiver module on a different card.11-11-2010
20100158535SMALL FORM-FACTOR PLUGGABLE TRANSCEIVER MODULE - A small form-factor pluggable transceiver module including a first optical transceiver device having a first circuit board, a second optical transceiver device having a second circuit board, and a third circuit board, disposed between the first circuit board and the second circuit board, having golden fingers hot-pluggable to an electronic equipment. The first circuit board preferably parallels with the second circuit board, and the third circuit board is preferably perpendicular to the first circuit board and the second circuit board. In addition, the third circuit board is preferably higher than the bottoms of the first circuit board and the second circuit board.06-24-2010
20090175626Optical transceiver amplifier - Systems and devices for use as optical transceivers and amplifiers in optical networks. An optical transceiver/amplifier has two optical signal circulators, each of which receives one incoming signal and transmits one outgoing optical signal. Each circulator combines its incoming and outgoing signals on to a bidirectional optical connection internal to the transceiver amplifier. Between the two circulators are a pump laser, an optical coupler to couple the pump laser's power into the bidirectional connection, and an amplifying medium for amplifying the bidirectional signal's internal to the transceiver amplifier. The amplifying medium may be an Erbium doped fiber which would amplify any optical signal passing through it. In one embodiment, the transceiver amplifier is in a self-contained package that is pluggable into existing equipment using pre-existing ports and interfaces.07-09-2009
20100028014FIBEROPTIC TRANSCEIVER MODULE WITH INTEGRAL STATUS INDICATORS - Exemplary embodiments of the invention relate to an optical transceiver module having a status indicator assembly, wherein the status indicator assembly is configured to visually display the operational status of the transceiver transmitter and receiver components. The operational status is accessible while the transceiver operates in conjunction with an external host and may be ascertained in real time without interrupting normal transceiver operation or suspending the transmission of data over optical fibers.02-04-2010
20100028015BACKDOOR DIAGNOSTIC COMMUNICATION TO TRANSCEIVER MODULE - Exemplary embodiments of the invention relate to an optical transceiver module having a diagnostic communications link, wherein the link is configured to access diagnostic and other data contained within the transceiver controller via a backdoor interface. Controller data, including operational parameter values and module setup values, is accessible while the transceiver operates in conjunction with an external host and may be retrieved, and sometimes modified, in real time without interrupting normal transceiver operation or suspending the transmission of data over optical fibers. The data is accessed with an external user device via a backdoor interface on the outside of the transceiver module.02-04-2010
20120039614OPTICAL COMMUNICATION MODULE, AND OPTICAL COMMUNICATION SYSTEM IN WHICH OPTICAL COMMUNICATION MODULE IS USED - The object of the present invention is to provide an optical communication module in which the pin arrangement can be applied flexibly, and an optical communication system in which this optical communication module is used.02-16-2012
20110135311TRANSMITTER, RECEIVER, TRANSCEIVER, TRANSMISSION CONTROL METHOD, RECEPTION CONTROL METHOD, OPTICAL TRANSMISSION MODULE AND ELECTRONIC DEVICE - A transmission device has a light emitting element for converting an electric signal to an optical signal and transmitting the same, and a drive section for outputting the optical signal from the light emitting element and driving the light emitting element by providing the electric signal to the light emitting element. The electric signal provided by the drive section to the light emitting element is a waveform deformed signal having a waveform in which a time required for a fall is longer than a time required for a rise in a binary signal having a signal of high level and a signal of low level.06-09-2011
20090052903System and method for expanding PCIe compliant signals over a fiber optic medium with no latency - A system for expanding PCI Express (PCIe) compliant signals over a fiber optic medium with no latency. A standardized fiber optic transceiver is adapted to provide an optimal PCIe expansion over a fiber optic medium. Signal buffers are utilized to translate and fine-tune standardized PCIe traffic to a level of low voltage differential signaling (LVDS) that is comprehensible to a wide range of fiber optic transceivers over a wide range of interface bandwidths. The intended use for such a high-speed LVDS buffer is to strengthen and enable PCIe signals over metal (copper) cable or metal printed circuit board (PCB) traces for large PCBs, such as backplanes, server motherboards, etc. By disposing the PCIe buffer used for metal (copper) cable between the PCIe bus and the fiber optic transceiver, one can achieve the signal conditioning and translating required to allow PCIe signals to pass over the fiber optic medium.02-26-2009
20080310850LED LIGHT COMMUNICATION SYSTEM - An LED light and communication system includes at least one optical transceiver, the optical transceiver including a light support and a processor. The light support has a plurality of light emitting diodes and at least one photodetector attached thereto, the light emitting diodes receiving power from a power source. The processor is in communication with the light emitting diodes and the at least one photodetector, the processor capable of illuminating the light emitting diodes to simultaneously create at least one first light signal, and at least one second light signal, the first light signal being observable to the unaided eyes of an individual and the second light signal not being observable to the unaided eyes of the individual. The second light signal includes at least one data packet. The at least one data packet comprises global positioning system (GPS) location information.12-18-2008
20120148254OPTICAL TRANSCEIVER - To provide an optical transceiver with which a plurality of optical transmitters and receivers constituting the optical transceiver can be detached individually and exchanged/repaired easily, so that waste of components can be avoided. The optical transceiver includes: an optical transceiver main body; a plurality of pairs of optical transmitters and optical receivers housed inside the optical transceiver main body by being disposed in parallel; optical transmitter substrates and optical receiver substrates, which individually hold each of the optical transmitters and the optical receivers; an optical transceiver substrate which holds each of the optical transmitter substrates and the optical receiver substrates; and connectors which connect each of the optical transmitter substrates as well as the optical receiver substrates to the optical transceiver substrate detachably.06-14-2012
20120114337CAPTURING DEVICE, CAPTURING METHOD, AND CAPTURING PROGRAM - There have been problems that a capturing device requires an optical source having a large power output, and a scanning operation and a capturing operation must be alternately performed by the respective devices.05-10-2012
20120045216OPTICAL TRANSCEIVER AND PACKAGING METHOD THEREOF - An optical transceiver includes a substrate, a plurality of laser components, a bracket and a plurality of lenses. The substrate defines a plurality of through holes, a plurality of receiving grooves and at least two fixing holes. The laser components are received in the plurality of receiving grooves and installed on the substrate. The bracket includes a top cover with an upper surface and one or more side walls. The one or more sidewalls include at least two positioning posts and one or more fixing surfaces. The positioning posts are engaged with the fixing holes to position the bracket to the substrate. The fixing surfaces are affixed on the substrate by an adhesive. The one or more sidewalls define one or more through channels extending from the one or more fixing surface to the upper surface. The lenses are installed on the bracket and correspond to the laser components.02-23-2012
20090067848LIMITED LIFE TRANSCEIVER - Systems and methods for an optical transceiver module to limit the amount of time the optical transceiver module is allowed to operate. The optical transceiver module includes at least one processor, a persistent memory and a system memory. The persistent memory, which is coupled to the at least one processor, contains microcode. The microcode is loaded from the persistent memory to the system memory and executed by the at least one processor. The executed microcode causes the optical transceiver module to detect the amount of time that the optical transceiver has been operating. The optical transceiver module then determines if the detected amount of operating time is in excess of a predetermined amount of operating time. If the detected operating time is in excess of the predetermined amount of operating time, the optical transceiver module causes itself to become non-operational. The optical transceiver module may then report its operational status.03-12-2009
20110064417COMMUNICATION SYSTEM - In a communication system, a signal processor of a communication apparatus transmits, when causing a communication module to perform a predetermined operation, a control signal at a predetermined level. Further, when authenticating the communication module, the signal processor changes a level of the control signal into a previously set authentication pattern and transmits the control signal. An operation controller of the communication module receives the control signal transmitted from the signal processor. When a level of the received control signal is a predetermined level, the operation controller performs a predetermined operation corresponding to the predetermined level. Further, when a level of the received control signal is an authentication pattern, the operation controller performs authentication control by matching or comparing the authentication pattern with a previously recognized pattern.03-17-2011
20120251124TRANSCEIVER FOR DIFFERENT VENDOR DEVICES - A transceiver having an interface configured to communicate with a plurality of different vendor devices, non-volatile memory having a first memory block and a second memory block of memory, wherein the second memory block comprises a plurality of vendor device data corresponding to a plurality of different vendor devices which enable the transceiver to communicate with the vendor devices over the interface, and a controller configured to selectively copy one of the plurality of vendor device data from the second memory block to the first memory block, wherein copying enables the transceiver to communicate over the interface with a particular vendor device corresponding to the selected vendor device data.10-04-2012
20120057879DISCRETE BOOTSTRAPPING IN AN OPTICAL RECEIVER TO PREVENT SIGNAL FEEDBACK - An optical receiver assembly that is configured to avoid the introduction of feedback in an electrical signal converted by the assembly is disclosed. In one embodiment, an optical receiver assembly is disclosed, comprising a capacitor, an optical detector provided with a power supply being mounted on a top electrode of the capacitor, and an amplifier mounted on the reference surface. The assembly further includes an isolator interposed between the reference surface and the capacitor, wherein the isolator includes a bottom layer of dielectric material that is affixed to a portion of the reference surface, and a metallic top plate that is electrically coupled both to a ground of the amplifier and to the capacitor. This configuration bootstraps the amplifier ground to the amplifier input via the photodiode top electrode of the capacitor to cancel out feedback signals present at the amplifier ground.03-08-2012
20120057878COMMUNICATION DEVICE AND CONTROL METHOD OF THE SAME - Disclosed is an optical communication device, including: a light source that outputs an optical signal; a modulation unit that modulates transmission data and inputs it to the light source; a storage unit that holds a set value of the light source or the modulation unit; a power consumption adjustment unit that, according to an instruction, acquires the set value from the storage unit, optimizes power consumption within a predetermined range of transmission characteristics, and determines a set value; and a control unit, being provided the determined set value, that controls power consumption of at least one of the light source and the modulation unit based on the provided set value.03-08-2012
20120301154SEMICONDUCTOR-BASED OPTICAL TRANSCEIVER - A semiconductor-based optical transceiver. The optical transceiver includes a post-amplifier that may communicate with an optoelectronic transducer, an electro-optic transducer driver that may communicate with an electro-optic transducer, and a control module that controls the operation of the post-amplifier and electro-optic transducer driver. The control module, the post-amplifier, and the electro-optic transducer driver are integrated in a single integrated circuit (IC) that does not require a printed circuit board for interconnecting these components of the optical transceiver.11-29-2012
20120301153OPTICAL OUTPUT MODULE, OPTICAL TRANSCEIVER, AND OPTICAL TRANSMISSION SYSTEM - The I phase modulator modulates a phase based on the bias voltage in which a first modulation signal and a first pilot signal are inherent and the Q phase modulator modulates a phase based on the bias voltage in which a second pilot signal different from the first pilot signal and a second modulation signal are inherent. A time-average power synchronous detection unit detects an optical power at a timing at which the positivity and negativity of the voltages of both pilot signals become the same, and an optical power when the positivity and negativity of the voltages of both pilot signals are opposite. The bias voltage control unit controls the bias voltage so that the difference between both the optical powers becomes small based on the detection result of the time-average power synchronous detection unit.11-29-2012
20120301152OPTICAL TRANSCEIVER IMPLEMENTED WITH TUNABLE LD - An optical transceiver implemented with a tunable LD is disclosed. The tunable LD is installed within a TOSA (Transmitter Optical Subassembly). The optical transceiver provides two circuit boards arranged in the up-and-down relation. The TOSA is primarily connected to the second board but signals to drive the tunable LD are carried on an FPC board directly connected to the first board that mounts a driver circuit for the tunable LD.11-29-2012
20120301151Low Power Consumption, Long Range, Pluggable Transceiver, Circuits and Devices Therefor, and Method(s) of Using the Same - The present disclosure relates to an optical transceiver for use in optical fiber communications and/or telecommunications systems and, more specifically, a low power consumption, long range pluggable transceiver. The transceiver generally comprises a photodiode with a transimpedance amplifier (PIN-TIA); an electro-absorption modulated laser (EML); an optical detector; and a directly modulated laser (DML) driving module connected between the PIN-TIA and EML laser configured to drive the EML laser. A low power-consumption DML driving module is utilized to drive the EML laser, so as to further reduce power consumption. An impedance matching circuit can be applied to modulate an electro-absorption (EA) modulator of the EML laser with maximum efficiency.11-29-2012
20100172651LIGHT EMITTING DEVICE, LIGHT RECEIVING DEVICE, DATA TRANSMISSION SYSTEM AND DATA TRANSMISSION METHOD USING THE SAME - A light emitting device, a light receiving device and a data transmission system and a data transmission method using the same are provided. The data transmission system includes the light emitting device and the light receiving device. The light emitting device includes a light emitting unit and a control circuit, and the light receiving device includes an image capture unit, a recognition unit and a decoding unit. The control circuit controls the light emitting unit to sequentially display a plurality of pattern images in a plurality of frame times to form a spatiotemporal pattern image according to setting data corresponding to a temporal domain and a spatial domain. The image capture unit captures the spatiotemporal pattern image. The recognition unit recognizes the spatiotemporal pattern image to output recognized data. The decoding unit decodes the recognized data to output decoded data.07-08-2010
20100172650DIRECTLY MODULATED LASER WITH INTEGRATED OPTICAL FILTER - An integrated optical source includes a Directly Modulated Laser (DML) and a filter which is positioned with the DML on a common substrate. The filter is configured to receive an input signal in the form of a modulated chirped optical signal. The filter is further configured to provide an output optical signal in the form of an amplitude and/or phase modulated optical signal, optimized for long-distance transmission in optical fiber.07-08-2010
20120315051OPTICAL TRANSCEIVER HAVING ENHANCED EMI TOLERANCE - An optical transceiver that reduces the EMI radiation leaked therefrom is disclosed. The optical transceiver includes a top cover and the bottom base to form a cavity into which a TOSA, a ROSA, and a circuit are set. The top cover provides a combed structure in a rear portion thereof, where the combed structure has a plurality of fins with a distance preferably less that quarter wavelength λ/4 of the noise wavelength to be reduced. The combed structure operates as a short stub for the electromagnetic wave traveling longitudinally in the cavity.12-13-2012
20110110670Rotatable Display Assembly - A rotatable display assembly is provided. The rotatable display assembly includes a base unit, a display unit and a wireless transmission system. The display unit is rotatably coupled to the base unit using at least one pivotal means, and the wireless transmission system is adapted to transmit data wirelessly between the base unit and the display unit.05-12-2011
20120128368DIFFERENTIAL CODE OPTICAL TRANSMISSION AND RECEPTION DEVICE - A differential code optical transmission and reception device including: a digital signal processing optical transceiver that converts information data into an optical signal and transmits it to a communication channel, a reception front end part that receives the optical signal from the communication channel, an O/E conversion part that converts the optical signal received from the communication channel into an electrical signal, a skew correction part that regulates or correct a skew between lanes contained in the electrical signal, a differential decoder that decodes a differential code of the skew corrected electrical signal, and a lane exchange/rotation part that rearranges the electrical signal having passed through the differential decoder into a lane state thereof at the time of transmission in cases where lane exchange has occurred in the communication channel.05-24-2012
20120134680INTER-TRANSCEIVER MODULE COMMUNICATION FOR FIRMWARE UPGRADE - An operational optical transceiver configured to update operational firmware using an optical link of the transceiver. The optical transceiver includes at least one processor and a system memory capable of receiving firmware. The optical transceiver receives an optical signal over the optical link containing the update firmware. The optical transceiver then recovers the firmware from the optical signal. Finally, the optical transceiver provides to the system memory the recovered firmware, which when executed by the at least one processor alters the operation of the transceiver.05-31-2012
20120213526OPTICAL TRANSCEIVER IMPLEMENTED WITH I2C BUSSES ARBITRATED BY SELECTOR - An optical transceiver with a bus selector for selecting one of I2C inner busses is disclosed. One of inner I2C buses connects the controller with a nonvolatile memory, while another I2C bus connects the controller with a volatile memory with a priority to the non-volatile memory. When the volatile memory is selected during the controller communicates with the non-volatile memory, the controller sets a command to the bus selector to select the second I2C bus and hold the first I2C bus.08-23-2012
20120170941OPTICAL TRANSCEIVER IC - A power management arrangement for low power optical transceiver such as those that may be integrated into a personal computer or server may periodically put itself into a power conservation or sleep mode which assures the transceiver is available upon wake-up.07-05-2012
20120170940OPTICAL FIBER HUB INCLUDING OPTICAL BOOSTER AMPLIFIER - An optical fiber hub includes an upstream interface for inputting a laser beam, an optical booster amplifier, a splitting element, and N downstream interfaces. The optical booster amplifier is optically communicated with the upstream interface, and configured for amplifying the laser beam. The splitting element is optically communicated with the optical booster amplifier, and configured for splitting the amplified laser beam into N laser beams. The N downstream interfaces are optically communicated with the splitting element. Each of the N downstream interfaces is configured for outputting one of the N laser beams, wherein N is an integer which is equal to or greater than 2.07-05-2012
20120251125PASSBAND REFLECTOMETER - A time-domain (TD) reflectometer that is designed to operate based on probe and response signals that are substantially fully spectrally confined to a designated frequency passband. In one embodiment, the TD reflectometer uses a passband transmitter to generate the probe signal based on a pseudo-random bit sequence and a passband receiver to demodulate the response signal. The TD reflectometer determines the impulse response of a channel under test based on cross-correlation of the transmitter and receiver baseband signals. In various embodiments, the TD reflectometer can be designed to operate in an acoustic-frequency range, a radio-frequency range, or an optical-frequency range. Due to its passband configuration, the TD reflectometer is advantageously capable of determining impulse responses without disrupting the operation and/or interfering with normal functions of the tested channel.10-04-2012
20120076501APPARATUS, METHOD, AND SYSTEM FOR IMPROVING BANDWIDTH OF A PLUG AND A CORRESPONDING RECEPTACLE - Described herein is an apparatus for improving bandwidth of a transceiver system e.g., a Universal Serial Bus (USB) micro-B connector. The apparatus comprises a first pair of lens units, each lens unit of the pair positioned on either side of an input-output (I/O) bus interface, the pair of lens units to send and receive optical signals respectively; a first housing to shield the first pair of lens units and for physically coupling the I/O bus interface and the first pair of lens units to a receptacle; and a key to grasp the first housing and to lock the first housing with the receptacle.03-29-2012
20090103926SYSTEMS AND METHODS FOR THE INTEGRATION OF FRAMING, OAM&P, AND FORWARD ERROR CORRECTION IN SFP OPTICAL TRANSCEIVER DEVICES - The present invention provides systems and methods for integrated framing functionality; optical layer operations, administration, maintenance, and provisioning (OAM&P); forward error correction (FEC); data encapsulation; and performance enhancement support in SFP optical transceiver modules. An SFP pluggable transceiver is configured to frame a client signal and to provide OAM&P functionality, such as with G.709 framing. The SFP pluggable transceiver operates within existing multi-source agreement (MSA) specifications for SFP. Accordingly, the pluggable transceiver can operate in any customer device compliant to the MSA specifications.04-23-2009
20120177378Novel Low-Cost Transceiver Approach - A transceiver comprising a CMOS chip and a plurality of semiconductor lasers coupled with the CMOS chip may be operable to communicate optical source signals from the plurality of semiconductor lasers into the CMOS chip. The source signals may be used to generate first optical signals that may be transmitted from the CMOS chip to optical fibers. Second optical signals may be received from the optical fibers and converted to electrical signals for use by the CMOS chip. The optical source signals may be communicated from the semiconductor lasers into the CMOS chip via optical fibers in to a top surface and the first optical signals may be communicated out of a top surface of the CMOS chip. The first optical signals may be communicated from the CMOS chip via optical couplers, which may comprise grating couplers.07-12-2012
20120177379OPTICAL TRANSCEIVER PROVIDING INDEPENDENT SPACES FOR ELECTRICAL COMPONENTS AND FOR OPTICAL COMPONENTS - An optical transceiver that reduces the EMI noise leaked therefrom is disclosed. The optical transceiver provides a metal housing, an optical subassembly, and an electronic circuit. The metal housing includes a first space to install the electronic circuit, and a second space to install the optical subassembly. At least the first space has inner surfaces having a corrugated shape to reduce the resonance of the electromagnetic waves.07-12-2012
20120177377CABLE CLAMP-ON DEVICE INCLUDING A USER INTERFACE - In an illustrative embodiment, a cable clamp (07-12-2012
20090060518METHODS AND APPARATUSES FOR PROVIDING A HERMETIC SEALING SYSTEM FOR AN OPTICAL TRANSCEIVER MODULE - In an optical transceiver module, the bottom surface of the lid is temporarily attached to the top surface of the submount assembly in a pre-alignment position prior to performing the solder flowing process in order to prevent the lid from shifting position during the solder flowing process. The solder flowing process is then performed to melt the solder. When the solder melts, the surface tension of the melted solder pulls the lid into its ultimate, or permanent, aligned position. The solder is then cooled, causing it to harden, thereby securing the lid to the submount assembly in its ultimate, permanently aligned position. The hardened solder between the top surface of the submount assembly and the bottom surface of the lid forms a hermetic seal that encloses components on the transmit side of the transceiver module in a hermetically-sealed environment.03-05-2009
20110110669OPTICAL TRANSCIEVER - An optical transceiver for detecting an incoming light beam and for transmitting an outgoing light beam along a common optical axis is provided. Such an optical transceiver provides a compact optical transceiver that is suitable for a wide variety of applications.05-12-2011
20120082462Low Power Consumption Small Form-Factor Pluggable Transceiver - A method is provided to lower the overall power consumption of small form-factor pluggable (SFP) transceivers. The method includes receiving an indication to operate the SFP transceiver in a low power mode, and setting the SFP transceiver to a low power mode in response to the indication by at least switching off a thermal electric cooler (TEC) that controls a temperature of a laser diode of the SFP transceiver. The proposed method may be implemented whenever a reach is not more than a predetermined distance, for example, 65 kilometers. At such reduced distances, the TEC of the SFP transceiver can be switched off while still guaranteeing link functionality. The instant low power mode has the benefit of reducing the power consumption of the SFP transceiver so that, for example, host platforms with lower power delivery budgets can support the SFP transceiver for at least some applications.04-05-2012
20080298810METHOD AND APPARATUS FOR CONTROLLING AN OPTICAL TRANSPONDER - Methods and apparatus are provided in accordance with the present invention in which a control mechanism, such as for example, a microcontroller, provides an interface between an optical transponder and an external control system, such that monitoring and controlling of the optical components of the optical transponder are accomplished in an efficient and cost-effective manner. In some embodiments of the present invention, methods and apparatus provide for testing and calibration of the optical transponder without removing any portion of a protective housing within which the internal components of the optical transponder are disposed.12-04-2008
20110236027VOLTAGE GENERATOR, CONTROL CIRCUIT, VECTOR SUM PHASE SHIFTER, AND OPTICAL TRANSCEIVER - A voltage generator (09-29-2011
20120087673OPTICAL INTERCONNECTION SYSTEM FOR TRANSMITTING AND RECEIVING A THREE-LEVEL SIGNAL AND METHOD OF OPERATING THE SAME - Provided is an optical interconnection system that transmits and receives a three-level signal. The optical interconnection system includes a first and a second optical interconnection device that transmits and receives a two-level signal, and a synthesizer that outputs a three-level signal by synthesizing signals from the first and second optical interconnection devices. The optical interconnection system may transmit and receive a three-level signal while using an optical interconnection device that interconnects a two-level signal.04-12-2012
20120328303OPTICAL COMMUNICATIONS DEVICE HAVING ELECTRICAL BOND PADS THAT ARE PROTECTED BY A PROTECTIVE COATING, AND A METHOD FOR APPLYING THE PROTECTIVE COATING - A protective coating encapsulates bond pads disposed on a substrate of an optical communications module and extends in between the bond pads. The protective coating has characteristics that (12-27-2012
20100202781Tunable Optical Transceiver in an XFP Package - An optical transceiver for converting and coupling an information-containing electrical signal with an optical fiber including a housing including an electrical connector with a serial interface for coupling with an external electrical cable or information system device and a fiber optic connector adapted for coupling with an external optical fiber, at least one electro-optical subassembly in the housing for converting between an information containing electrical signal and a modulated optical signal corresponding to the electrical signal including a transmitter subassembly including a tunable laser operating at selectable wavelength and modulated with the electrical signal for emitting a laser light beam coupled to the fiber optic connector for transmitting the optical signal to an external optical fiber.08-12-2010
20130022361NETWORK ELEMENT - A network element has at least one input, to which an optical signal can be fed, and at least one output, which is equipped to emit an optical signal; a first coupler having an input linked to the network element input and a first and a second output; an optical receiver having at least one input coupled to the second output of the first coupler and at least one output; an optical sender having at least one input of which is linked to the output of the optical receiver; a signal processing device being arranged in the signal path; a second coupler having a first input linked to the first output of the first coupler, a second input linked to the output of the optical sender, and an output which is linked to the first output of the network element.01-24-2013
20120243875Dynamic Memory Allocation in an Optical Transceiver - Methods, algorithms, architectures, circuits, and/or systems for dynamically allocating memory for storing parametric data in optical transceivers are disclosed. The optical transceiver can include an optical receiver configured to receive optical data; an optical transmitter configured to transmit optical data; a microprocessor configured to access data for each of a plurality of parameters that are related to operation of at least one of the optical receiver and the optical transmitter; one or more memories configured to store the data at a plurality of locations that are dynamically allocated by the microprocessor; and an interface configured to receive a request for data for one or more of the parameters from a host and provide the data in response to the request. In the present disclosure, the host is unaware of the locations at which the parametric data are stored.09-27-2012
20080232814QUANTUM COMMUNICATION APPARATUS AND QUANTUM COMMUNICATION METHOD - A quantum communication apparatus is used in operations to generate entanglement between the two physical system ensembles and operations to extend the distance between entangled ensembles by connecting pairs of entangled ensembles. The apparatus uses only passive elements without any actuating parts, active devices having no mechanically actuating parts, such as an electro-optical device capable of ultrahigh-speed operation, and a laser source capable of generating high-speed pulse trains or a continuous wave laser source. The apparatus can rapidly execute light irradiation necessary for entanglement generation and connection, and detection of a generated photon at the needed sites within a decoherence time of the physical system.09-25-2008
20080232813TRANSCEIVER FOR OPTICAL TRANSMISSION AND TRANSMISSION METHOD FOR THE SAME - The present invention provides a transceiver for optical transmission in which noise can be sufficiently suppressed and a method for the same using a simple configuration. The transceiver includes an optical transmitter module in which a low frequency obtained by boosting and filtering a power-source voltage is superimposed onto and LD drive current.09-25-2008
20130129359TRANSPORTING DATA AND AUXILIARY SIGNALS OVER AN OPTICAL LINK - A data transport system for transporting data and auxiliary signals over an optical link comprises a transmitter, a receiver and an optical link. The transmitter and receiver are coupled to a first end of the optical link. The optical link includes a number of optical channels. A controller is coupled to the transmitter and the receiver, and controls the transmitter and the receiver to operate in a first state when data are detected at an input of the transmitter. Data are transported via the data transport system in the first state. The controller controls the transmitter and the receiver to operate in a second state when the data are detected as absent at the input of the transmitter. Data are prevented from being transported via the data transport system in the second state.05-23-2013
20130101297REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER FOR OPTICAL NETWORKS - The present document relates to passive optical networks (PON). More particularly but not exclusively, it relates to the use of a reflective semiconductor optical amplifier (RSOA) for amplifying signals in a Gigabit PON (GPON) or WDM-PON. An apparatus configured to amplify light at different wavelengths in an optical network is described. The apparatus comprises a first active material configured to amplify light at a first wavelength and a second active material configured to amplify light at a second wavelength. Furthermore, the apparatus comprises a first reflector which separates the first and second active materials and which is configured to reflect light at the first wavelength and which is configured to be substantially transparent to light at the second wavelength. In addition, the apparatus comprises a second reflector adjacent the second active material opposite to the first reflector which is configured to reflect light at the second wavelength.04-25-2013
20090129782BUILDING ILLUMINATION APPARATUS WITH INTEGRATED COMMUNICATIONS, SECURITY AND ENERGY MANAGEMENT - An LED light and communication system includes one or more optical transceivers that have a light support having a plurality of light emitting diodes and one or more photodetectors attached thereto, and a processor in communication with the light emitting diodes and the one or more photodetectors. The processor is constructed and arranged to generate a communication signal. The one or more optical transceivers are engaged to a lighting fixture within a building. The one or more optical transceivers are constructed and arranged to communicate with a name tag.05-21-2009
20130148977OPTICAL TRANSCEIVER HAVING AN EXTRA AREA IN CIRCUIT BOARD FOR MOUNTING ELECTRONIC CIRCUITS - An optical transceiver of one embodiment includes a transmitter optical subassembly to transmit an optical signal, a receiver optical subassembly to receive an optical signal, a mother board, a daughter board, and a housing. The mother board mounts electronic circuits that electrically communicate with the optical transmitter optical subassembly and the receiver optical subassembly. The daughter board mounts other electronic circuits that electrically communicate with the optical transmitter optical subassembly and the receiver optical subassembly. The daughter board has an extra area mounting a portion of the other electronic circuits. The housing defines a space for installing the optical transmitter optical subassembly, the receiver optical subassembly, the mother board, and the daughter board. The extra area is disposed outside the space.06-13-2013
20130156441OPTICAL TRANSCEIVER AND PRODUCTION METHOD THEREOF - An optical transceiver includes a single-fiber bidirectional optical transmission/reception device, a circuit board, a transmission-side FPC, a reception-side FPC and a separation wall. The optical transceiver includes a single-fiber bidirectional optical transmission/reception device includes an LD stem that converts an electric signal into an optical signal and transmits it, and a PD stem that receives the optical signal and converts it into an electric signal. The transmission-side FPC electrically connects the LD stem and the circuit board. The reception-side FPC electrically connects the PD stem and the circuit board. The separation wall is formed between the transmission-side FPC and the reception-side FPC, and grounded to the chassis of the optical transceiver. The reception-side FPC is folded and set between the chassis and the separation wall such that the board front surface is an inner side, where the micro-strip line is formed on the above board front surface.06-20-2013
20130156442PARALLEL OPTICAL TRANSCEIVER MODULE THAT UTILIZES A FOLDED FLEX CIRCUIT THAT REDUCES THE MODULE FOOTPRINT AND IMPROVES HEAT DISSIPATION - A parallel optical transceiver module is provided that uses a folded flex circuit arrangement that reduces the footprint of the transceiver module while also providing the module with improved heat dissipation characteristics. In addition, the manner in which components are mounted on the flex circuit facilitates assembly of the module, reducing the overall cost of the module while improving manufacturing yield.06-20-2013
20110293285TRANSCEIVER MODULE AND INTEGRATED CIRCUIT WITH DUAL EYE OPENERS - A transceiver module having integrated eye diagram opening functionality for reducing jitter is described. The transceiver module may include a transmitter eye opener and a receiver eye opener integrated in a single circuit. The transceiver module may also include serial control and various other integrated components. Other functionalities that may be integrated on the transceiver module include loopback modes, bypass features, bit error rate testing, and power down modes.12-01-2011
20130188963APPLYING CONTROLLED IMPEDANCE TO IMPROVE OPTICAL TRANSCEIVER BANDWIDTH - An optical transceiver includes an optical receiver IC coupled to a processor IC. The processor IC includes an integrated optical receiver front end circuit, and includes an integrated inductor to control the LC frequency response of a signal from the optical receiver IC to the output of the front end circuit. The inductor is coupled in series between interface components of the processor IC and an input of the front end circuit. The inductor is configured to adjust an effective input reactance of the front end circuit, which operates to control the LC frequency response of a signal from the optical receiver IC to an output of the front end circuit.07-25-2013
20120008962CONTROLLER FOR OPTICAL TRANSCEIVER AND A METHOD TO CONTROL THE SAME - A method is disclosed, where the access time to the extended memory space may be shortened in an optical transceiver coupled with a host device through I01-12-2012
20120093518SINGLE PACKAGE BIDIRECTIONAL MODULE FOR MULTIMODE FIBER COMMUNICATION - In one embodiment an apparatus is provided for supporting 100GBASE-SR10 data communications over an optical link. The apparatus includes a receptacle configured to receive an optical fiber cable comprising at least 10 OM3 optical fibers, the receptacle including individual channels for receiving respective ones of the at least 10 optical fibers, a plurality of optical receiver/transmitter pairs, and a plurality of wave division multiplexers configured to couple individual ones of the channels with respective ones of the optical receiver/transmitter pairs.04-19-2012

Patent applications in class OPTICAL TRANSCEIVER

Patent applications in all subclasses OPTICAL TRANSCEIVER