Entries |
Document | Title | Date |
20080212969 | METHOD AND APPARATUS FOR USING DISTRIBUTED ANTENNAS - A distributed antenna system for using distributed antennas provides for locating a plurality of distributed antennas on existing infrastructure such as existing utility poles, traffic lights/signals, streetlights, etc. Each of the distributed antennas is connected to a base station hotel using a fiber optic cable. The distributed antenna system allows users to access wireless services provided by a plurality of carriers and using a plurality of communication technologies using a truly shared network and without having to implement duplicative wireless infrastructure components. | 09-04-2008 |
20080267633 | SPLIT EQUALIZATION FUNCTION FOR OPTICAL AND ELECTRICAL MODULES - Briefly, in accordance with one or more embodiments, optical transceiver module includes a first equalizer disposed internal to the optical transceiver module that is capable of equalizing an electrical signal provided to a host board in combination with a second equalizer disposed on the host board in a split equalization type arrangement. | 10-30-2008 |
20080310849 | FREQUENCY MODULATED BURST MODE OPTICAL SYSTEM - The present invention is directed towards a frequency modulated (FM) burst mode optical system that allows optical signals having a common wavelength provided by a plurality of FM burst mode optical transmitters to be passively combined onto a single optical fiber. A single FM optical receiver receives the combined signals and processes them accordingly. Each FM burst mode optical transmitter includes an FM modulator, a carrier detect circuit and a laser. The FM modulator modulates a carrier signal, such as a 1.21 GHz signal, with received reverse electrical signals. When a subcarrier signal is detected by the carrier detect circuit, the laser is turned and the frequency modulated carrier signal is used to intensity modulate a laser to provide an optical signal. Due to the burst-mode transmission of optical signals, the optical signals can be passively combined and transmitted to a single optical receiver. | 12-18-2008 |
20090016730 | Photon audio amplifier and fiber link for audio systems - Systems and methods to minimize signal loss and distortions with connections of audio sources and speakers are disclosed. Fiber optic cables are used instead of conventional cables. The audio signals are kept always in the analog domain, no matter if they are in optical or electric format. The strength of the audio signals can be controlled by a volume control unit. A small amplifier unit can either directly plugged to speakers are connected to the speakers via a short speaker cable. A preamplifier is no more necessary in the system. | 01-15-2009 |
20090052901 | HYBRID FIBER COAX (HFC) CIRCUIT - A hybrid fiber coax (HFC) circuit comprises a diplexer and laser. The diplexer has an input terminal receiving a downstream radio-frequency (RF) signal from a passive optical network (PON). The diplexer outputs this signal from its common terminal onto a cable distribution network (CDN) covering the “last mile” to the customer. The diplexer receives on the common terminal an upstream radio-frequency (RF) signal from the CDN which it outputs on its output terminal. The laser connects to receive the upstream RF signal from the output terminal and uses this signal to generate an optical upstream RF signal transmitted to the head-end or hub via the PON. The HFC circuit can also comprise an RF amplifier, equalizer, or pod adjustment unit. Elements of the HFC circuit can be mounted on a substrate with an interface connection configured to fit into an optical network terminal (ONT). A related system is also disclosed. | 02-26-2009 |
20090074421 | High-dynamic-range analog fiber-optic link using phase modulation and tunable optical filter - A cw-laser source transmits low-noise, narrow-linewidth optical power via an optical fiber to a bias-free electro-optic phase modulator at a remote site, where an antenna or an RF sensor is located. The RF electrical signal modulates the phase modulator at the remote site, converting an electrical signal into an optical signal. The phase-modulated optical signal is fed back via the optical fiber to an optical filter whose filter transfer characteristics can be tuned and reconfigured to cancel the intermodulation distortion terms, particularly the dominant 3 | 03-19-2009 |
20090092398 | Data Signal Isolation Apparatus - Data signal isolation apparatus comprising a first media converter adapted to convert outgoing electrical data signals into outgoing optical data signals, an optical data signal transmission means adapted to transmit said outgoing optical data signals, a second media converter adapted to convert said outgoing optical data signals back into outgoing electrical data signals, and an intrinsically safe power supply, in which the optical data signal transmission means comprises an electrical isolation gap, and in which the second media converter is powered by the intrinsically safe power supply. | 04-09-2009 |
20090123155 | Data Processing Network Having an Optical Network Interface - An optical data processing network having an optical network interface is disclosed. The optical data processing network includes a first multi-processor system and a second multi-processor system. The first multi-processor system includes a first set of processors and a first set of optical network interfaces electrically coupled to the first set of processors. Similarly, the second multi-processor system includes a second set of processors and a second set of optical network interfaces electrically coupled to the second set of processors. An optical cable is connected between the first set and the second set of optical network interfaces. The first multi-processor system communicates with the second multi-processor system via the optical cable. | 05-14-2009 |
20090175624 | Conversion Circuit - A circuit for converting data of a signal line in the form of logical pulses of current to RS232 level voltages between an air-conditioner and a computer is described. The conversion circuit is able to troubleshoot the communication signals between the indoor unit and outdoor unit of an air-conditioner. | 07-09-2009 |
20090274466 | Bi-Directional Signal Interface - A bi-directional signal interface includes a first waveguide that propagates a first traveling wave. The first waveguide has one end that is coupled to a RF input port that receives a RF transmission signal and another end that is coupled to a RF bi-directional port that receives a RF reception signal and that transmits the RF transmission signal. A second waveguide is positioned proximate to the first waveguide. The second waveguide has one end that is coupled to an output port that passes the received RF reception signal. A non-reciprocal coupler couples fields from the first waveguide to the second waveguide so that the RF reception signal from the bi-directional port couples from the first waveguide to the second waveguide in a substantially non-reciprocal manner and then passes through the output port, and the RF transmission signal from the RF input port passes through the first waveguide to the RF bi-directional port. | 11-05-2009 |
20100028012 | RF-PHOTONIC TRANSVERSAL FILTER METHOD AND APPARATUS - A method and apparatus for implementing an RF photonic transversal filter that utilizes tap apodization and wavelength reuse to obtain a high side lobe suppression together with narrow and configurable passbands. Several taps are obtained from one wavelength by using dispersive optical delay lines such as chirped fiber gratings that introduce a delay between successive wavelengths. A selected subset of the input wavelengths is utilized to generate multiple taps per wavelength. Some of the taps are apodized to generate various filter transfer functions that yield a high side lobe suppression ratio. | 02-04-2010 |
20100067915 | PHOTOELECTRIC COMPOSITE WIRING COMPONENT AND ELECTRONIC APPARATUS EMPLOYING IT - To provide a photoelectric composite wiring component combining both characteristics of low power consumption of transmission over electrical wiring and large transmission capacity of optical transmission over optical wiring, and exhibiting a high power efficiency for the transmission capacity. A mechanism for switching between transmission of a transmission signal over an electrical transmission path and that over an optical transmission path depending on the modulation rate or the transmission rate of the transmission signal is provided. When the modulation rate or the transmission rate of the transmission signal is low, power supply to an optical transmitting/receiving section is stopped and the signal is transmitted over the electrical transmission path, thus achieving low power consumption. When the modulation rate or the transmission rate of the transmission signal is high, the signal is transmitted over the optical transmission path, thus achieving a large transmission capacity. | 03-18-2010 |
20100086309 | REDUCING CROSS-MODULATION IN MULTICHANNEL MODULATED OPTICAL SYSTEMS - A modulated optical system with cross-modulation compensation reduces or corrects cross-modulation that might occur at a target frequency range in a multichannel RF signal that modulates a laser. The system detects the cross-modulation, for example, by detecting an envelope of the RF signal or by detecting RF power fluctuations, generates a cross-modulation detection signal, filters the cross-modulation detection signal at the target frequency range, and imparts a compensating cross-modulation to the RF signal in response to the filtered cross-modulation detection signal. | 04-08-2010 |
20100092179 | SYSTEMS AND METHODS FOR GIMBAL MOUNTED OPTICAL COMMUNICATION DEVICE - Optical communication systems and methods are operable to communicate optical signals across a gimbal system. An exemplary embodiment has a first optical rotary joint with a rotor and a stator, a second optical rotary joint with a rotor and a stator, and an optical connector coupled to the stators of the first and the second optical rotary joints. The stator of the first optical rotary joint is affixed to a first rotational member of the gimbal system. The stator of the second optical rotary joint is affixed to a second rotational member of the gimbal system. A first optical connection coupled to the rotor of the first optical rotary joint and a second optical connection coupled to the rotor of the second optical rotary joint remain substantially stationary as the gimbal system orients an optical communication device in a desired position. | 04-15-2010 |
20100098424 | Organic Electro-Optic Modulators with Transparent Conducting Electrodes and Related Device Structures - Electro-optic (EO) modulator and related device structures which can be used in conjunction with high EO materials to lower switching voltage and improve related performance parameters. | 04-22-2010 |
20100098425 | RADIO FREQUENCY IDENTIFICATION OVERLAY NETWORK FOR FIBER OPTIC COMMUNICATION SYSTEMS - In this invention, a radio frequency identification overlay network that automates the discovery and configuration management of all physical fiber optic connections within a distributed communications network is disclosed. Miniaturized, low crosstalk RFID tags at a first fiber optic receptacle location and miniature, distributed, multiplexed reader antenna at a distant, second fiber optic receptacle location are joined by a fiber optic link which transmits both optical data and RF electronic signals. This electronic-fiber optic interface is comprised of two separated, miniaturized resonant antenna in communication with another through a resonant RF transmission line integral to the fiber optic cable. This RFID overlay network is comprised of multiplexed RFID readers, RF resonant fiber optic cables, and miniaturized RFID tags attached to the connector receptacles of network elements. The RFID overlay network interrogates tags automatically and remotely through the RF transmissive and optically transmissive fiber optic patch cords, eliminating the need for manual readout by technicians. | 04-22-2010 |
20100142964 | OPTICAL TRANSMISSION APPARATUS WITH STABLE OPTICAL SIGNAL OUTPUT - An optical transmission apparatus for high-speed optical signal transmission is provided. The optical transmission apparatus includes an optical modulator which includes first and second modulators of a Mach-Zehnder (MZ) interferometer type which are connected in parallel, and an output stabilizer which controls biases for the first modulator, the second modulator and the optical modulator and stabilizes a final output optical signal of the optical modulator. The optical transmission apparatus can perform a stable optical signal output. | 06-10-2010 |
20100215376 | NOISE RESISTANT LIGHT-POWERED TRANSCEIVING ADAPTER - A light-powered data acquisition and control system immune to electromagnetic interference employs smart sensors in a network configuration capable of decentralized communication. A smart sensor with integral transducer encloses a microprocessor, fiber optic transceiver, and photovoltaic converter within a Faraday cage. Optical fibers link plural sensors for duplex communication with a fiber optic splitter, which transmits high intensity light to the converter for powering the sensors. The sensor converts analog input from the transducer into bit packets for fiber optic transmission to the network via the splitter. Firmware in the splitter converts the bit packets to network protocol and vice versa enabling data communication among sensors, splitters, and control receivers. Verification algorithms for testing sensors are run automatically by the microprocessor or through commands issued via the network. Mnemonics stored in the sensors provide automatic updating of system configuration. | 08-26-2010 |
20100226654 | Methods, Systems and Devices for Integrating Wireless Technology into a Fiber Optic Network - The present disclosure relates to a fiber optic network configuration having an optical network terminal located at a subscriber location. The fiber optic network configuration also includes a drop terminal located outside the subscriber location and a wireless transceiver located outside the subscriber location. The fiber optic network further includes a cabling arrangement including a first signal line that extends from the drop terminal to the optical network terminal, a second signal line that extends from the optical network terminal to the wireless transceiver, and a power line that extends from the optical network terminal to the wireless transceiver. | 09-09-2010 |
20100247105 | Wireless Communication System, Central Station, Access Device, and Communication Method - A wireless communication system includes a Central Station (CS) capable of the functions of a Base Station Controller (BSC), and at least one access device controlled by the CS. The CS is connected to the at least one access devices through cables. The access device is adapted to demodulate the downlink wired signals of the CS to downlink Radio Frequency (RF) signals, and send the downlink RF signals to the destination wireless user. The CS is adapted to perform baseband processing, Intermediate Frequency (IF) processing, and RF processing for the data provided by the core network to obtain downlink RF signals, modulate the downlink RF signals to downlink wired signals, and send the downlink wired signals to the access device corresponding to the destination wireless user of the data provided by the core network. A CS, a BS, and two communication methods are disclosed herein. | 09-30-2010 |
20100266287 | Bandwidth allocation and management system for cellular networks - A bandwidth allocation and management system for cellular communication networks. The system includes at least one master optical switch and processing station, a number of aggregation base stations that are in optical fiber communication with a master optical switching and processing station and a number of auxiliary cellular base stations surrounded by and supported by each aggregation base station. In preferred embodiments a plurality of sets of three neighboring base stations are each adapted to receive and process RF signals transmitted by cellular users within a broadcast and receive range and transmit the RF signals received, by each of the three neighborhood base stations, from each of the cellular users in analog form to the master optical switching and processing station. The master optical switching and processing station processes the three RF signals and combine, for each user within the broadcast and receive range, the three RF signals and to convert the combined RF signals to digital form for transmission to other users in the communication network. | 10-21-2010 |
20100290788 | RF Audio Distribution System Including IR Presence Detection - A teacher microphone ( | 11-18-2010 |
20100296815 | METHODS AND APPARATUS FOR INTERCONNECTING SAS DEVICES USING EITHER ELECTRICAL OR OPTICAL TRANSCEIVERS - Methods and systems for encoding and/or decoding digital signals representing serial attached SCSI (SAS) out of band (OOB) signals exchanged over an optical communication between two SAS devices. A SAS OOB signal to be transmitted from a first SAS device to a second SAS device is first encoded as a digitally encoded signal representing the analog SAS OOB signal and then transmitted over an optical communication medium to another SAS device. A receiving SAS device coupled to an optical communication medium decodes a received digitally encoded signal to detect a received, encoded SAS OOB signal and processes the received SAS OOB signal when receipt is detected. The digitally encoded signal may comprise an idle word portion and a burst word portion to represent various SAS OOB signals. Further, the digitally encoded signal may be precomputed in a variety of disparity forms and stored in a memory for lookup and retrieval. | 11-25-2010 |
20100296816 | Flexible Distributed Antenna System - An apparatus and method for implementing a flexible distributed antenna system (DAS) head end are disclosed. A flexible DAS head end includes an RF conditioning module configured to be connected to one or more base station transceiver (BTS) devices and one or more low-power RF modules that are also part of the flexible DAS head end. In an example embodiment, the flexible DAS head end receives high-power digital-RF passband transmissions from its connections to the one or more BTS devices, and low-power digital-RF passband signals from the one or more low-power RF modules. The low-power RF modules, in turn, can receive input baseband signals from one or more baseband units (BBUs) in a wireless network, and then convert the input signals to the lo low-power digital-RF passband signals. The RF conditioning module constructs one or more superposition RF signals from the passband signals, and routes and transmits them to an array of antenna nodes. | 11-25-2010 |
20110020006 | SELF CONFIGURABLE OPTICAL LINK - An optical link for communicating a payload data stream between a near end transceiver and a far end transceiver via an optical communication channel, the near end transceiver including a near end receiver (near-Rx) and a near end transmitter (near-Tx) and the far end transceiver including a far end receiver (far-Rx) and a far end transmitter (far-Tx), wherein the far-TX is adapted to transmit a link data stream to the near-RX beside the payload data stream from the far end to the near end. | 01-27-2011 |
20110026932 | Head-End Circuit and Remote Antenna Unit and Hybrid Wired/Wireless Network System and Transceiving Method Using Thereof - A head-end circuit comprises first and second continuous light sources, first and second modulators. The first and the second continuous light sources provide first and second optical signals respectively corresponding to first wavelength and second wavelength, which is different from the first wavelength. The first modulator modulates the first optical signal based on first clock signal to generate an optical clock signal. The second modulator modulates the second optical signal based on downlink data to generate optical downlink data with the carrier of the second optical signal. The optical clock signal and the optical down link data are outputted to a remote antenna unit via first fiber path. | 02-03-2011 |
20110044693 | SYSTEM AND APPARATUS FOR PROVIDING A HIGH QUALITY OF SERVICE NETWORK CONNECTION VIA PLASTIC OPTICAL FIBER - A media converter for converting between electrical and optical signals is provided. The media converter includes an electro-optical transceiver configured to convert an optical signal into an electrical signal and vice-versa. The electro-optical transceiver includes an optical signal port connectable to a plastic optical fiber, the optical signal port for sending and receiving the optical signal along the plastic optical fiber; and an electrical signal port for sending and receiving the electrical signal. The media converter also includes a plurality of means for electrically conveying the electrical signal. A switch is in electrical communication with the electrical signal port of the electro-optical transceiver and with the plurality of means for electrically conveying the electrical signal, and is configured to direct the electrical signal from the electro-optical transceiver to any one of the means for electrically conveying the electrical signal and vice-versa, thereby facilitating bi-directional communication. The media converter can also have a telephonic network access port connectable to a telephone cable, which includes a pair of power carrying wires for carrying electrical power. A power supply is in electrical communication with the switch and the electro-optical transceiver, and power supply wiring electrically couples the telephonic network access port to the power supply for powering the media converter by transmitting power from the power carrying wires to the power supply when the telephone cable is coupled to the network access port. Beneficially, by obtaining power from the telephonic network, a low voltage telecommunications technician is able to install the media converter within a building, thereby allowing for relatively inexpensive installation. | 02-24-2011 |
20110044694 | SYSTEMS AND METHODS FOR OPTICALLY POWERING TRANSDUCERS AND RELATED TRANSDUCERS - The present disclosure describes an optically powered transducer with a photovoltaic collector. An optical fiber power delivery method and system and a free space power delivery method are also provided. A fabrication process for making an optically powered transducer is further described, together with an implantable transducer system based on optical power delivery. | 02-24-2011 |
20110091217 | APPARATUS AND METHOD FOR TRANSPORTING MULTIPLE RADIO SIGNALS OVER OPTICAL FIBER - A method and apparatus for transporting three or more radio signals of the same frequency, such as multiple input multiple output (MIMO) radio signals, over optical fiber on a single optical carrier using a phase quadrature double sideband frequency translation technique is disclosed. | 04-21-2011 |
20110091218 | BROADBAND RADIO TRANSCEIVER WITH OPTICAL TRANSFORM - A broadband receiving apparatus includes an antenna to receive a radio signal having a plurality of modulation frequencies. An amplifier drives a laser source from the broadband radio signal to produce an optical signal having a plurality of spectral components. A diffraction grating transforms the optical signal into its spectral components. An array of photo-detectors converts the spectral components into electronic signals corresponding to the plurality of modulation frequencies. A transmitting apparatus includes an array of coherent laser emitters driven by electronic signals corresponding to a plurality of modulation frequencies to produce optical signals corresponding to a plurality of spectral components. A diffraction grating inverse transforms the spectral components into a composite optical signal. A photo-detector converts the composite optical signal into a composite electronic signal including the plurality of modulation frequencies. An amplifier amplifies the composite electronic signal for transmission as a broadband radio signal. | 04-21-2011 |
20110103800 | RADIO-ON-FIBER UNIT AND RADIO-ON-FIBER SYSTEM - An object of the present invention is to provide a radio-on-fiber unit and a radio-on-fiber system which can transmit/receive signals at adequate rates especially, to/from a mobile device. A first aspect of the present invention relates to a radio-on-fiber unit ( | 05-05-2011 |
20110150488 | Electrically Traceable and Identifiable Fiber Optic Cables and Connectors - Composite fiber optic cables having exposed, conductive traces external to the cable jacket enable non-invasive, wireless electrical tone tracing of fiber optic cables. The cross sectional geometry of the fiber optic cable prevents conductive traces from short circuiting when abutting other cables or grounded conductive elements. Moreover, the structure allows convenient electrical contact to the conductive traces at any location along the longitudinal extent of the cable without requiring penetration of the cable jacket or removal of fiber optic connectors. Traceable fiber optic cables of various types are disclosed, including simplex, duplex and ribbon cables. Systems of traceable cables utilizing connectors with integrated electrical antenna elements attached to the conductive elements of cable and RFID tags for remote connector port identification are further disclosed. | 06-23-2011 |
20110158652 | PORTABLE INFRARED CONTROL LIAISON - A remote control liaison device for use in controlling a remote controlled device via a LAN device includes a processor, a wireless transceiver, a remote control signal emitter, a remote control signal emitter adapter, an infrared signal detector, an indicator signal light, a power interface, and memory media accessible to the processor. The memory media may include instructions executable by the processor to establish a communication channel between the remote control liaison device and the LAN device using the wireless transceiver; convert a remote control command signal received from the LAN device for control of the remote controlled device into a device command executable by the remote controlled device; and send an infrared command signal corresponding to the device command to the remote controlled device using at least one of the remote control signal emitter and a second remote control signal emitter connected to the remote control signal emitter adapter. | 06-30-2011 |
20110206379 | OPTO-ELECTRONIC MODULE WITH IMPROVED LOW POWER, HIGH SPEED ELECTRICAL SIGNAL INTEGRITY - An apparatus and method for receiving electrical signals and transmitting optical signals includes a substrate having an electrical circuit. An electrical-to-optical module is mounted on the substrate, and the module includes an array of photodetectors communicating with the electrical circuit. The photodetectors may include VCSEL arrays or PD arrays. The module receives electrical signals from the electrical circuit and provides a plurality of corresponding light signals. An electrical transport is embedded in the substrate, and the electrical transport electrically communicates with the array of photodetectors. An optical interface provides electrical communication between an optical fiber and the electrical circuit. A heat transfer device may be positioned adjacent the photodetectors to transfer heat generated by the photodetectors. | 08-25-2011 |
20110206380 | Optoelectronic interconnect for high frequency data transmission at low power consumption - An optoelectronic interconnect which includes optical transmitter and detector having capacitances below 150 femto-Farads each suitable for transmission of optical signals at speeds at and above 20 Gigabit per second at power consumption below 10 milliWatt per Gigabit per second | 08-25-2011 |
20110222861 | INTERCONNECT FOR A DATA STORAGE SYSTEM - The invention provides an interconnect for a data storage system, to enable optical communication between a data storage device and a backplane to which the data storage device is in use to be connected, wherein the interconnect includes an electrical power connection for providing power to a said data storage device; and, an optical engine for generating and receiving optical signals for transmission of data between the data storage device and the backplane. | 09-15-2011 |
20110222862 | MAKE BEFORE BREAK OPTICAL MESH NETWORK ELEMENT - A network element includes an electronic switch for routing traffic between a plurality of client access ports and a plurality of EO ports, a respective EO interface coupled to each one of the plurality of EO ports; a wavelength selective switch for optically switching optical signals between the EO interfaces and a set of optical transmission fibers; and a control system. The plurality of EO interfaces includes at least one Make Before Break (MBB) OE interface. The control system is operative to reconfigure the network element by identifying an EO interface to be reconfigured. A new optical path is set up through the wavelength selective switch and terminated on the MBB EO interface. The electronic switch is then controlled to re-route a traffic flow traversing the identified EO interface to the MBB EO interface. | 09-15-2011 |
20110229142 | DATA PROCESSING NETWORK HAVING AN OPTICAL NETWORK INTERFACE - An optical data processing network having an optical network interface is disclosed. The optical data processing network includes a first multi-processor system and a second multi-processor system. The first multi-processor system includes a first set of processors and a first set of optical network interfaces electrically coupled to the first set of processors. Similarly, the second multi-processor system includes a second set of processors and a second set of optical network interfaces electrically coupled to the second set of processors. An optical cable is connected between the first set and the second set of optical network interfaces. The first multi-processor system communicates with the second multi-processor system via the optical cable. | 09-22-2011 |
20110229143 | APPARATUS AND METHOD FOR COMPENSATING POLARIZATION MODE DISPERSION - An apparatus (PMDC) for compensating polarization mode dispersion for an optical transmission fiber (TF) for transmission of optical signals, said optical signals having a first polarization component (x pol) and a orthogonal second polarization component (y pol) comprises tuneable means (PC | 09-22-2011 |
20110243566 | OPTICAL FIBER INTERFACE SYSTEM AND CONNECTOR - A media converter to converts digital fiber optic signals to electronic analog signals in the form of voltage doublet and vice-versa. The media converter includes a differential transmit transformer, a transmit stub interface and an optical fiber transmit interface arranged in serial flow communication in a first communication path; and a differential receive transformer, a receive stub interface and an optical fiber receive interface in serial flow communication in a second communication path. The first communication path converts a voltage doublet signal received from the electronic component to a digital optical signal for transmission to a passive optical star via the optical fiber coupler, and the second communication path converts a digital optical signal received from the passive optical star via the optical fiber coupler to an voltage doublet signal for transmission to the electronic component. | 10-06-2011 |
20110268451 | CIRCUIT ARRANGEMENT AND METHOD FOR TRANSMITTING TMDS ENCODED SIGNALS - For providing circuit arrangement and method for transmitting signals from a data source to a data sink, the signals being TMDS encoded, the driver circuit is supplied by a connection interface, connected upstream, assigned to data source, with supply voltage, electrical TMDS encoded signals are electro-optically converted by an LED connected downstream of the driver circuit and coupled into an optical fiber as light supplied with TMDS encoded signals, the direct current portion supplied from TMDS transmitter to connection interface, to data source, is converted by driver circuit to a modulated signal current for controlling LED. Light supplied with TMDS encoded signals decoupled out from optical fiber by light-absorbing element, opto-electrically converted and supplied to transimpedance converter circuit connected downstream of light-absorbing element and upstream of connection interface assigned to data sink, transimpedance converter circuit being supplied by direct voltage portion being applied to differential pair of wires. | 11-03-2011 |
20110318015 | AMPLIFIER WITH OFFSET COMPENSATOR AND OPTICAL RECEIVER IMPLEMENTED WITH THE SAME - An amplifier for an optical receiver is disclosed. The amplifier includes a common base buffer, a differential amplifier, and some buffer amplifiers, where circuit block from the common base buffer to the buffer amplifiers have the differential arrangement and are connected in series in this order. The amplifier further includes an offset compensator that receives the outputs of the buffer amplifier put in the rear end of the amplifier and outputs control signals, which are complementary to each other and filtered by a low-pass-filter, to the base of the transistors in the common base buffer to compensate the offset appeared in the output of the buffer amplifier. | 12-29-2011 |
20120002973 | DUAL BAND RADIO FREQUENCY (RF) & OPTICAL COMMUNICATIONS ANTENNA AND TERMINAL DESIGN METHODOLOGY AND IMPLEMENTATION - A dual-band antenna is provided that combines two normally disparate communications modes into a single compact aperture minimizing overall mass and volume, while maintaining high performance efficiency and reciprocity of each individual mode. The antenna is compatible with both optical (near-IR/visible) and RF (microwave/millimeter-wave) transceiver subsystems for high bandwidth communications, applicable primarily to long- to extremely long-range (space-to-ground) link distances. The optical link provides high bandwidth while the RF provides a lower data-rate weather backup, accommodation for traditional navigation techniques, and assistance in cueing the extremely tight optical beam by matching the RF beamwidth to an optical fine-steering mechanism field-of-regard. The configuration is built around a near-diffraction-limited high performance primary mirror shared by both a direct-fed RF antenna design and a Cassegrain optical telescope. Material properties are exploited to combine the optical secondary mirror with the RF feed structure, providing a collimated optical beam interface at the antenna vertex. | 01-05-2012 |
20120020670 | METHOD AND SYSTEM FOR HIGH PRECISION GPS APPLICATIONS - A GPS system for obtaining data from a GPS signal received at a plurality of antenna stations, each antenna station being connected to a common receiver station through an optical fiber link The system includes a light generating module at the receiver station generating an optical reference signal, and an antenna station module at each antenna station. The antenna station modules modulate the optical reference signal according to the GPS signal received, obtaining a twice modulated optical signal, and sending this signal to the receiver station. Finally, an output module is provided at the receiver station, this module being used for extracting the GPS signal and the oscillating reference signal, calibrating in real time the optical fiber links based on a phase comparison, and processing the GPS signal from the antenna stations, taking into account the real time calibration of the optical fiber links. | 01-26-2012 |
20120027416 | NETWORK INTERFACE DEVICE FOR OPTICAL PREMISES SIGNALS AND NETWORKS - A network interface device (NID) demarcates an access network and a premises network. The NID receives a broadband signal via an access network and transmits optical device signals to pieces of premises equipment. The broadband signal may be a single-mode fiber (SMF) optical signal transmitted over an SMF cable. In these embodiments, the NID may include a transponder including a first stage to convert the SMF signal to an intermediate electrical signal and a second stage to convert the intermediate electrical signal to a premises optical signal. In other embodiments, the broadband signal may be a very high bit rate digital subscriber line (VDSL) or other type of electrical signal and the NID's transponder may convert the VDSL signal to the premises optical signal. The NID may further include a multiplexer to multiplex the premises optical signal into the optical device signals for delivery to premises devices via corresponding premises device ports and plastic optical fiber cables. | 02-02-2012 |
20120039610 | DEPLOYABLE PHOTONIC LINK AND INTERFACE MODULE - A deployable photonic link including a deployable length of optical fiber and an interface module fusion spliced to at least one end of the optical fiber so that the module is directly connected to the fiber. The interface module including at least one of: an input for receiving a first electrical signal including a first radio frequency (RF) signal component; and an output for outputting a second RF signal component. The interface module further including, respectively, at least one of: a device for receiving the first electrical signal from the input and for producing an optical signal modulated with the first RF signal component for transmission in the optical fiber; and a device for receiving a modulated optical signal and for producing therefrom the second RF signal component for output at the output. An interface module may also contain both the input and the output and the devices for receiving RF signals and for receiving modulated optical signals. | 02-16-2012 |
20120039611 | COMMUNICATION SYSTEM PROVIDING HYBRID OPTICAL/WIRELESS COMMUNICATIONS AND RELATED METHODS - A communication system includes at least one optical-wireless device coupled to a longitudinal side of an optical fiber. The optical-wireless device may include an optical fiber power unit for converting optical power into electrical power, and a wireless communication unit electrically powered by the optical fiber power unit. The optical-wireless device may include a substrate mounting the optical fiber power unit and the wireless communication unit to the longitudinal side of the optical fiber. The wireless communication unit may include a radio frequency transmitter, and a signal optical grating coupling the transmitter to the longitudinal side of the optical fiber. The radio frequency transmitter in some embodiments may include an ultra-wideband transmitter. A dipole antenna may also be provided including first and second portions extending in opposite directions along the longitudinal side of the optical fiber. | 02-16-2012 |
20120057877 | METHOD AND SYSTEM FOR PROVIDING A RETURN PATH FOR SIGNALS GENERATED BY LEGACY TERMINALS IN AN OPTICAL NETWORK - A return path system includes inserting RF packets between regular upstream data packets, where the data packets are generated by communication devices such as a computer or interne telephone. The RF packets can be derived from analog RF signals that are produced by legacy video service terminals. In this way, the present invention can provide an RF return path for legacy terminals that shares a return path for regular data packets in an optical network architecture. | 03-08-2012 |
20120063785 | CONNECTOR, OPTICAL TRANSMISSION DEVICE, AND CONNECTOR CONNECTION METHOD - A connector includes an electrode sheet, a cover, and a resistor sheet. A plurality of electrodes are attached on a side of the electrode sheet. The electrode sheet is an insulator. The cover covers the electrode sheet. The resistor sheet is provided between the cover and the electrode sheet and has electrical resistivity. | 03-15-2012 |
20120076499 | SYSTEM AND METHOD FOR TRANSMISSIONS VIA RF OVER GLASS - A system and method are provided for controlling the transmission of RF signals that are to be carried as optical signals over an optical fiber network. Operationally, the optical signals are transmitted as “bursts” in accordance with a standard protocol. For the present invention, transmission control requires an ON/OFF control that incorporates a time delay. Specifically, a “burst” of signals (RF/optical) is initiated when power in the RF input signal passes a predetermined threshold. After an established turn-on time that is set by the time delay, the ON/OFF control activates a laser diode for transmission of the “burst.” Further, the present invention provides control for constant optical output power from the laser diode. Importantly, the laser diode is OFF when a “burst” is not being transmitted. | 03-29-2012 |
20120076500 | SYSTEM AND METHOD FOR THE DISTRIBUTION OF RADIO-FREQUENCY SIGNALS - A system for the distribution of radio-frequency signals includes a main unit associated with at least a first radio communication set, at least a remote unit associated with at least a second radio communication set installed in a preset area, for the radio coverage of the area, and a communication channel associated with the main unit and with the remote unit, wherein the main unit ( | 03-29-2012 |
20120106973 | METHOD AND APPARATUS FOR OPTICAL WIRELESS ARCHITECTURE - Embodiments of the present invention pertain to optical wireless architecture. More particularly, certain embodiments of the invention pertain to a novel method and apparatus to generate millimeter-wave signals with simple and/or low cost architecture. Simple millimeter-wave generation and dispersion-tolerant transmission is based on photonic mixing of two free-running lightwaves and self-mixing down-conversion. More particularly, heterodyne mixing of two free run lightwaves is achieved, wherein one lightwave is modulated by an external modulator driven by electrical data as one of the side-bands of a millimeter-wave signal. Optical to electrical conversion is performed and the millimeter-wave signal is broadcasted by a high-frequency antenna to a receiving side having a local oscillator with self-mixing architecture to down-convert the radio frequency to its baseband form. | 05-03-2012 |
20120121269 | MULTIFUNCTION RECEIVER-ON-CHIP FOR ELECTRONIC WARFARE APPLICATIONS - What is provided is a receiver-on-a-chip comprising a monolithic integrated circuit that reduces the receiver to a cigarette-pack-sized assembly mountable directly at an antenna element, with a much-increased operational bandwidth and instantaneous bandwidth, increased dynamic range and with a two-order-of-magnitude decrease in size and weight. Moreover, because of the elimination of all of the I/O drivers and attendant circuitry, power consumption is reduced by two-thirds, whereas the mean time before failure is increased to 10,000 hours due to the robustness of the monolithic integrated circuit and use of fiber optics. | 05-17-2012 |
20120121270 | MULTI-PORT ACCUMULATOR FOR RADIO-OVER-FIBER (RoF) WIRELESS PICOCELLULAR SYSTEMS - A multi-port accumulator apparatus for a radio-over-fiber (RoF) wireless picocellular system comprising a housing supporting a tail cable port and transponder ports. The tail cable port is optically coupled to the RoF transponder ports to provide for transmission of uplink and downlink optical signals between the tail cable port and each of the transponder ports. The tail cable port is also electrically coupled to provide power to each transponder port. The multi-port accumulator supports RoF transponders, one at each of the transponder ports. Each RoF transponder includes a directional antenna system forming a picocellular coverage sub-area, with the combined sub-areas constituting a picocellular coverage area for the multi-port accumulator. The multi-port accumulator permits quick installation and deployment of large numbers of RoF transponders without individually connecting each RoF transponder to downlink and uplink optical fibers in an optical fiber RF communication link. | 05-17-2012 |
20120141132 | APPARATUSES, SYSTEMS, AND METHODS FOR FACILITATING OPTICAL COMMUNICATION BETWEEN ELECTRONIC DEVICES - Active optical cable assemblies, and systems, methods, and adapter modules and integrated circuits for facilitating communication between a host and a client device over a fiber optic cable are disclosed. In one embodiment, an active optical cable assembly includes a fiber optic cable having at least one optical fiber, a host active circuit, a client active circuit, a host connector, and a client connector. Upon a connection between the host active circuit and a host device, the client termination switch closes to couple the client termination impedance to the ground reference potential. Upon a connection between the client active circuit and a client device, the host termination switch closes to the couple the host termination impedance to the ground reference potential. In another embodiment, a method includes enabling a host termination impedance upon a connection of an active optical cable to a client device. | 06-07-2012 |
20120148252 | ENCODING AN OPTICAL SIGNAL USING A RADIO-FREQUENCY SIGNAL - The present invention provides a method for modulating an optical signal in a semiconductor device. A wireless radio frequency modulation signal is used to provide a time-dependent electric field in a semiconductor nanostructure region, which causes a change in the absorption in the semiconductor device. An optical signal propagating in the semiconductor device will be modulated in accordance with the properties of the wireless radio frequency modulation signal, thus providing a method for encoding information from a wireless radio frequency signal onto an optical carrier. | 06-14-2012 |
20120183300 | OPTICAL NETWORK UNIT TRANSCEIVER MODULE HAVING DIRECT CONNECT RF PIN CONFIGURATION - Methods for providing 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. | 07-19-2012 |
20120201545 | Multifunction Receiver-On Chip For Electronic Warfare Applications - What is provided is a receiver-on-a-chip comprising a monolithic integrated circuit that reduces the receiver to a cigarette-pack-sized assembly mountable directly at an antenna element, with a much-increased operational bandwidth and instantaneous bandwidth, increased dynamic range and with a two-order-of-magnitude decrease in size and weight. Moreover, because of the elimination of all of the I/O drivers and attendant circuitry, power consumption is reduced by two-thirds, whereas the mean time before failure is increased to 10,000 hours due to the robustness of the monolithic integrated circuit and use of fiber optics. | 08-09-2012 |
20120230697 | NOTEBOOK WITH UNIVERSAL CIRCUIT BOARD REALIZED BY THE USE OF OPTICAL FIBER AND THE REALIZATION METHOD - A notebook with universal circuit board realized by the use of optical fiber and the realization method, based on the fiber optic transmission, the notebook including a core mainboard, a functional mother board, several functional boards electrical connected with the functional mother board, and several expanded functional boards electrical connected with the functional mother board. The core mainboard and said functional mother board are connected by the optical fiber for data transmission. The present invention can be used in a variety of notebooks and realizes universal mainboard, and the already designed functional interface can be directly used. It will help the manufacturing enterprises raise the utilization ratio of universal parts and reduce their operating costs. | 09-13-2012 |
20120243874 | Radio Frequency Optical Communication System - An optical communication system for generating and transmitting a modulated optical signal in which light emitted by a light source is modulated by an optical modulator in accordance with an input electrical signal. A bias signal generator applies a bias electrical signal to bias the optical modulator at a bias angle away from quadrature. The bias signal generator monitors the input electrical signal and adjusts the applied bias electrical signal in dependence on the input electrical signal. The system further includes a receiver which may include an equalizer coupled to the photodetector of the receiver. | 09-27-2012 |
20120308237 | MITIGATING NOISE AND OBI IN RFOG NETWORKS - A bi-directional optical transceiver includes multiple single mode optical ports and a multi-mode optical port. A multi-mode optical combiner combines single mode optical signals received at the single mode optical ports into a multi-mode optical signal at the multi-mode optical port. Each single mode optical signal has a distinct optical mode that does not interfere with the optical mode of the other single mode optical signals. A photo detector detects a total optical power of the plurality of single mode optical signals in the multi-mode optical signal. An amplifier is coupled to receive an output of the photo detector. | 12-06-2012 |
20120308238 | DISTRIBUTED ANTENNA SYSTEM - A distributed antenna system includes a first antenna disposed covering a predetermined communication range, the first antenna carrying out a communication at least at a low-frequency band, and a plurality of second antennas disposed covering the predetermined communication range, the plurality of second antennas carrying out a communication at a high-frequency band. The distributed antenna system is operable to carry out a communication between the first antenna and the second antennas, and a mobile terminal located within the predetermined communication range by means of carrier aggregation using the low-frequency band and the high-frequency band. The distributed antenna system further includes a BB module equipped in a base station for carrying out a communication within the predetermined communication range, the first antenna and the second antennas being each connected to the one BB module via an RF module. | 12-06-2012 |
20120328301 | DIGITAL RADIO FREQUENCY TRANSCEIVER SYSTEM AND METHOD - A transceiver architecture for wireless base stations wherein a broadband radio frequency signal is carried between at least one tower-mounted unit and a ground-based unit via optical fibers, or other non-distortive media, in either digital or analog format. Each tower-mounted unit (for both reception and transmission) has an antenna, analog amplifier and an electro-optical converter. The ground unit has ultrafast data converters and digital frequency translators, as well as signal linearizers, to compensate for nonlinear distortion in the amplifiers and optical links in both directions. In one embodiment of the invention, at least one of the digital data converters, frequency translators, and linearizers includes superconducting elements mounted on a cryocooler. | 12-27-2012 |
20130022359 | Pluggable Module with Bi-Directional Host-Module Optical Interface - An apparatus for connecting a host device to an optical network, and to provide a bi-directional electro-optic interface to the host device. The apparatus comprises at least one optical network port for connection to the optical network, and a transceiver circuit configured to generate optical transmit signals for transmission via the at least one network port. The transceiver circuit is further configured to process optical receive signals received via the network port. The apparatus further comprises an optical connector configured to provide bi-directional transfer of optical data signals with the host device. | 01-24-2013 |
20130022360 | OPTICAL MODULE ASSEMBLED ON CIRCUIT BOARD VIA HOLDER - An optical transceiver having an optical subassembly electrically connected to a circuit board with an RF connector is disclosed. The optical transceiver further provides a holder for support the RF connector. The circuit board is held by a leg and an arm each being provided in the holder, and putting the circuit board therebetween. | 01-24-2013 |
20130028606 | LOCALIZATION SERVICES IN OPTICAL FIBER-BASED DISTRIBUTED COMMUNICATIONS COMPONENTS AND SYSTEMS, AND RELATED METHODS - Optical fiber-based distributed communications components and systems, and related methods to provide localization services for client devices are disclosed. The localization services allow the providing and/or determination of the location of client devices in communication with a component or components of the optical fiber-based distributed communications system. The location of client devices can be provided and/or determined based on knowledge of the location of the component or components in the optical fiber-based distributed communications system in communication with the client device. This information can be used to determine or provide a more precise area of location or area of location for client devices. The optical fiber-based distributed communications components and systems, and related methods disclosed herein may be well-suited for indoor environments where other methods of providing and/or determining location of client devices may be obstructed or not possible due to the indoor environment. | 01-31-2013 |
20130039663 | Circuits, Architectures, Apparatuses, Methods and Algorithms for Determining a DC Bias in an AC or AC-Coupled Signal - Methods, circuits, architectures, apparatuses, and algorithms for determining a DC level in an AC or AC-coupled signal. The method generally includes disabling the AC or AC-coupled signal; sampling the disabled AC or AC-coupled signal to obtain sampled DC values of the AC or AC-coupled signal; and calculating the DC level using the sampled DC values of the AC or AC-coupled signal. The present transmitter generally includes an electro-absorption modulated laser (EML); a photodetector; a signal source configured to provide an AC or AC-coupled signal to the EML; and a microcontroller or microprocessor configured to (i) control the signal source, (ii) receive information from the photodetector, and (iii) deactivate the signal source for a predetermined length of time. The circuits, architectures, and apparatuses generally include those that embody one or more of the inventive concepts disclosed herein. | 02-14-2013 |
20130051807 | PHOTONIC MILLIMETER-WAVE GENERATOR - A photonic millimeter-wave generator capable of combining wired and wireless communication facilities to further elongate the transmission distance comprises a laser generator for generating a first optical signal; an optical frequency comb generator coupled with the laser generator; and a pulse shaper coupled with the optical frequency comb generator. The optical frequency comb generator receives the first optical signal generated by the laser generator and outputs a second optical signal. The second optical signal contains multiple frequency components and is sent to the pulse shaper. The pulse shaper adjusts the amplitude and phase of the second optical signal and then outputs the signal as a third optical signal. | 02-28-2013 |
20130064550 | BI-DIRECTIONAL, COMPACT, MULTI-PATH AND FREE SPACE CHANNEL REPLICATOR - An apparatus for simulating radio frequency (RF) signal propagation characteristics in a wireless communication network is disclosed. The apparatus includes a first RF terminal and a second RF terminal. A first optical modulator is in electrical communication with the first RF terminal. An optical delay line is in optical communication with the first optical modulator. A first optical demodulator is in optical communication with the optical delay line and in electrical communication with the first RF terminal. A second optical demodulator is in optical communication with the optical delay line and in electrical communication with the second RF terminal. A second optical modulator is in electrical communication with the second RF terminal and in optical communication with the optical delay line. | 03-14-2013 |
20130084074 | Photonic Circuit - An integrated or monolithic photonic circuit that modulates RF signals onto optical signals and then performs a channelizing filter function according to the RF content. According to an exemplary embodiment, the photonic circuit is employed in an aircraft system that includes a front end, a photonic circuit, an optical connection, and an electronic module at some distant location in the aircraft. RF signals are received by an antenna in the front end, the RF signals are then modulated onto optical signals by a modulator and a laser, the modulated optical signals are filtered by a filter array according to a channelizing filter function, and the modulated and channelized optical signals are then carried over the optical connection to the electronic module. Other options like a wavelength-tunable laser and corresponding feedback feature, as well as ring filters with integrated semiconductor optical amplifiers (SOAs) are also possible. | 04-04-2013 |
20130094863 | LED 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. | 04-18-2013 |
20130121704 | UTILITIES COMMUNICATIONS MODULE WHICH ENABLES REMOTE COMMUNICATIONS VIA AN OPTICAL FIBER NETWORK - A utilities communications module including an optical fiber interface, an optical modem and at least one utilities interface. The optical fiber interface enables remote communications via an optical network. The optical modem converts between optical and electrical communications. The utilities interface enables remote communications with at least one local utility device. The utilities communications module enables remote control and communications with one or more utility devices and other service devices, such as utility meters (e.g., electric, gas, water, etc.) including smart meters and the like, home monitoring controllers, home security controllers, smart home controllers, etc. | 05-16-2013 |
20130148974 | COMPUTER AND COMPUTER DATA TRANSMISSION SYSTEM - A computer data transmission system includes a CPU, a photoelectrical conversion module electrically connected to the CPU, a plurality of I/O interface cards, and a plurality of first optical fibers. The photoelectrical conversion module includes a plurality of photoelectrical conversion units. Each I/O interface card includes at least one photoelectrical conversion unit for converting electrical signals to optical signals or converting optical signals to electrical signals. The first optical fibers connect the photoelectrical conversion units of the I/O interface cards and the photoelectrical conversion units of the photoelectrical conversion module. The photoelectrical conversion unit of the photoelectrical conversion module receives electrical signals outputted by the CPU, and convert the electrical signals to optical signals. The converted optical signals are transmitted to the photoelectrical conversion unit of the I/O interface card, and the photoelectrical conversion unit of the I/O interface card converts the optical signals to electrical signals. | 06-13-2013 |
20130148975 | MULTICHANNEL TRANSMITTER OPTICAL MODULE - Provided is a multichannel transmitter optical module which includes a plurality of light source units configured to generate light, a plurality of an electro-absorption modulators (EAMs) configured to modulate the generated light to an optical signal through a radio frequency (RF) signal, a plurality of RF transmission lines configured to apply the RF signal to the EAMs, and a combiner configured to combine the modulated optical signal. The RF transmission lines are connected to the EAMs in a traveling wave (TW) electrode manner. The multichannel transmitter optical module has alleviated crosstalk and is compactly integrated to have a small size. | 06-13-2013 |
20130148976 | SYSTEMS AND METHODS FOR USING ACTIVE OPTICAL CABLE SEGMENTS - First and second active optical modules that terminate first and second active optical cable segments, each of which having a respective active end and a respective passive end, can be authenticated by: reading information from active-end storage devices attached to the respective active ends of the first and second active optical modules; providing information read from the active-end storage devices to an aggregation point; reading information from passive-end storage devices attached to the respective passive ends of the first and second active optical cable segments; providing information read from passive-end storage devices to the aggregation point; and authenticating the first and second active optical modules using information provided to the aggregation point. | 06-13-2013 |
20130156438 | DIGITAL MULTIMETER HAVING REMOTE DISPLAY WITH AUTOMATIC COMMUNICATION BINDING - A method of automatically binding first and second devices for RF communication is disclosed. One step of the method involves establishing a secure, non-RF communication mode between the first and second devices. According to another step, first and second communication addresses respectively identifying the first and second devices are exchanged in the secure, non-RF communication mode such that the first and second devices will recognize each other as communication partners. The secure, non-RF communication mode is then terminated and an RF communication mode is established between the first and second devices as a first bound pair. | 06-20-2013 |
20130188962 | COMMUNICATIONS DEVICE WITH DISCRIMINATOR FOR GENERATING INTERMEDIATE FREQUENCY SIGNAL AND RELATED METHODS - A communications device includes a transmitter device having an optical source to generate an optical carrier signal, and a first modulator coupled to the optical source and to modulate the optical carrier signal with a radio frequency (RF) input signal, and an optical waveguide coupled to the transmitter device. The communications device includes a receiver device coupled to the optical waveguide and including a second modulator to further modulate the modulated optical carrier signal with a local oscillator (LO) signal, a frequency modulation-phase modulation (FM-PM) discriminator coupled to the second modulator and to convert the modulated optical carrier signal to an intensity modulated optical carrier signal based upon the LO signal, and an optical-to-electrical converter coupled to the FM-PM discriminator and to generate an intermediate frequency (IF) signal based upon the intensity modulated optical carrier signal. | 07-25-2013 |
20130202308 | PHASED ANTENNA ARRAY INCLUDING A PLURALITY OF ELECTRO-OPTICAL CIRCUITS HAVING AN OPTICAL SOURCE WITH AN OPTO-ELECTRONIC OSCILLATOR AND ASSOCIATED METHODS - A phased antenna array includes a plurality of electro-optic (EO) circuits. Each EO circuit has a digital-to-analog converter (DAC) configured to receive a baseband signal, and an optical source comprising an opto-electronic oscillator configured to generate an optical signal. Each EO circuit also has an EO modulator coupled downstream of the DAC and to the optical source and configured to modulate an optical carrier signal based upon the baseband signal and the optical signal, and an optical combiner coupled downstream of the EO modulator and coupled to the optical source. In addition, there are a plurality of antenna circuits spaced apart from the plurality of EO circuits, each antenna circuit comprising at least one photodiode and an antenna element coupled thereto. Moreover, a plurality of optical fibers couple the plurality of EO circuits to the plurality of antenna circuits. | 08-08-2013 |
20130209107 | METHOD AND APPARATUS FOR DETECTING RADIO-FREQUENCY SIGNALS USING A DISPERSIVE FIBER OPTICAL LOOP - An apparatus comprising a dispersive fiber optical loop for delaying a first and second sideband, relative to each other, of a light modulated by a radio frequency signal to create a pair of pulses, a coupler for tapping a replica of the pair of pulses from the loop; and an auto-correlation module, coupled to the coupler, for correlating the replica of the pair of pulses with each other. | 08-15-2013 |
20130236187 | ELECTRO-OPTIC COMMUNICATIONS DEVICE WITH FREQUENCY CONVERSION AND RELATED METHODS - A communications device includes a transmitter device having an optical source configured to generate an optical carrier signal, a first E/O modulator coupled to the optical source and configured to modulate the optical carrier signal with an input signal having a first frequency, and a second E/O modulator coupled to the optical source and configured to modulate the optical carrier signal with a reference signal. The communications device includes an optical waveguide coupled to the transmitter device, and a receiver device coupled to the optical waveguide and including an O/E converter coupled to the optical waveguide and configured to generate an output signal comprising a replica of the input signal at a second frequency based upon the reference signal. | 09-12-2013 |
20130236188 | ACTIVE OPTICAL CABLE CONNECTOR PLUG AND ACTIVE OPTICAL CABLE USING SAME - An active optical cable connector plug includes: an electrical interface configured to connect to a first electronic device; an optical interface configured to connect to an optical cable, the optical cable being configured to connect to a second electronic device; an electrical-to-optical circuitry being connected with the electrical interface and the optical interface and configured to convert a received electrical signal to an optical signal; an optical-to-electrical circuitry being connected with the electrical interface and the optical interface and configured to convert a received optical signal to an electrical signal; a plug-in detection block being connected to the electrical interface and configured to detect the electrical properties of the first electronic device; a plug-in emulation block being connected to the electrical interface and configured to emulate the electrical properties of the second electronic device. | 09-12-2013 |
20130236189 | COMMUNICATIONS SYSTEM - In order to provide a communication system which performs a communication while maintaining high voltage insulation, a control circuit which is operated at a low voltage, and a controlled circuit which is operated at a high voltage are connected through a propagation layer having a waveguide structure, thereby performing a communication. In particular, a displacement current (surge current) flows between a high voltage circuit and a low voltage circuit due to a potential fluctuation which occurs in the high voltage circuit A surge current protection circuit is provided, and applying of an input which is out of rating to the communication module and the low voltage circuit due to such a surge current is prevented. | 09-12-2013 |
20130243437 | CONNECTOR SYSTEM, CONNECTING CABLE AND RECEIVING TOOL - A connector provided on a projector has an RF chip. A plug connected to the connector has an RF chip at a position opposite to the RF chip of the connector. When a protruding section of the plug is inserted and fit into an aperture section of the connector, the RF chip of the plug and the RF chip of the connector perform wireless communication with each other in a non-contact state. Thus, a connecting tool can be easily attached to/detached from a receiving tool without breaking a terminal due to contact such as in a case where a conventional contact type terminal is used. | 09-19-2013 |
20130266324 | Method and System for Connector and/or Cable with Configurable Antenna for Ethernet and Wireless Applications - A system for communication can include a configurable Ethernet connector. The connector can include a first multiple-medium interface. The first multiple-medium interface may include a wireless interface and a wired interface that may be configurable to communicate corresponding wireless and wired messages. The connector can also include a second multiple-medium interface communicatively coupled to the first multiple-medium interface. The second multiple-medium interface may include a wireless interface and an optical interface that may be configurable to communicate corresponding wireless and optical messages. The system can also include a circuit communicatively coupled to the first multiple-medium interface and the second multiple-medium interface. The circuit may be configurable to convert a medium of a message. | 10-10-2013 |
20130315604 | MOBILE BI-DIRECTIONAL FREE-SPACE OPTICAL NETWORK - The system provides a mobile, full bi-directional, free-space optical (FSO) network providing networkability and internet connectivity. Each mobile system has a FSO transceiver communicating via line-of-sight (LOS) with a stationary FSO transceiver. Alternatively, the mobile system communicates with a relay FSO transceiver that is in contact with another relay and/or a stationary FSO transceiver. The system has diversity of wavelengths through a multi- wavelength system operating predominately in the infrared spectrum. The network is directionally constrained by the optical components to reduce interference with other networks. Pointing, acquisition, and tracking (PAT) of the network optical signal generator and receivers assists optical performance. | 11-28-2013 |
20130330087 | METHOD AND APPARATUS FOR REDUCING INTERFERENCE DURING UPSTREAM MICRONODE TRANSMISSIONS - A micronode includes an electrical port connectable to a downstream device, an optical port connectable to a head end having an upstream controller and an electro-optical converter connected to the electrical port and to the optical port and configured to convert electrical signals received from the downstream device at the electrical port to optical signals and to convert optical signals received from the head end via the optical port to electrical signals. The micronode also includes an addressable controller configured to receive a micronode polling request from the upstream controller and to determine when the downstream device is sending signals to the head end and begin a response to the micronode polling request in response to a determination that the downstream device is transmitting information to the head end. Also, an associated method of controlling the micronode. | 12-12-2013 |
20140010546 | METHOD AND APPARATUS FOR PERFORMING DATA RATE CONVERSION AND PHASE ALIGNMENT - A gearbox IC is incorporated into an optical communications system to enable an optical link that incorporates the system to achieve data rates that are at least double that which are currently achievable in optical links. The gearbox IC performs data rate conversion and phase alignment. In the transmit direction, the gearbox IC receives N lanes of electrical data signals having a data rate of X Gbps and outputs N/2 lanes of electrical data signals having a data rate of 2X Gbps. In the receive direction, the gearbox IC receives N/2 electrical data signals having a data rate of 2X Gbps and converts the N/2 electrical data signals into N electrical data signals having a data rate of X. | 01-09-2014 |
20140010547 | ACTIVE OPTICAL ANTENNA, MICROWAVE TRANSMITTING SYSTEM AND INFORMATION SENDING METHOD - Embodiments of the present disclosure disclose an active optical antenna, a microwave transmitting system and an information sending method. The active optical antenna includes: a substrate; a ground disposed at the bottom of the substrate; a power supply grid and several antenna units that are disposed at the top of the substrate, and photodetector tubes that are disposed in the substrate and located between the antenna units and the ground, where the power supply grid supplies power to the photodetector tubes, the number of the photodetector tubes is equal to the number of the antenna units, and output ends of the photodetector tubes are coupled with the antenna units to output radio frequency signals; and optical waveguides which are disposed in the substrate and connected to the photodetector tubes. | 01-09-2014 |
20140050484 | SYSTEM USING FREQUENCY CONVERSIONS FOR SUB-OCTAVE TRANSMISSION OF SIGNALS OVER A FIBER OPTIC - A system for transporting a plurality of digital signals (i.e. “n” digital signals) over an optical fiber includes a plurality of modems for modulating each digital signal on a respective analog signal. Each resulting RF signal is processed by a corresponding up-convertor, which includes a mixer and local oscillator, to produce a frequency band which can be a double sideband or single sideband of the modulated signal. The resulting frequency bands output by the up-convertors are non-overlapping and are spaced apart within a single sub-octave. An RF combiner combines the frequency bands and the combined RF signal is converted into an optical signal by an optical transmitter that outputs to an optical fiber. An optical receiver converts the optical signal from the fiber to an RF signal that is directed to an RF splitter. Signal fractions from the splitter are filtered, down-converted and demodulated to recover the initial digital signals. | 02-20-2014 |
20140086589 | Method And Apparatus For Optical Coupling And Opto-Electronic Conversion - A method for converting an optical signal, propagating in an optical fiber, into an electrical output signal, including the following steps: providing an optical interface having opposing flat surfaces and being formed of a material having a refractive index that is substantially higher than the refractive index of the optical fiber; disposing a first of the opposing flat surfaces of the interface adjacent an output end of the optical fiber, and disposing a photodetector adjacent a second of the opposing flat surfaces of the interface; whereby the optical signal is coupled into the photodetector and converted by the photodetector into an electrical output signal. | 03-27-2014 |
20140126914 | OPTICAL FIBER-BASED DISTRIBUTED RADIO FREQUENCY (RF) ANTENNA SYSTEMS SUPPORTING MULTIPLE-INPUT, MULTIPLE-OUTPUT (MIMO) CONFIGURATIONS, AND RELATED COMPONENTS AND METHODS - Optical fiber-based distributed antenna systems that support multiple-input, multiple-output (MIMO) antenna configurations and communications. Embodiments disclosed herein include optical fiber-based distributed antenna system that can be flexibly configured to support or not support MIMO communications configurations. In one embodiment, first and second MIMO communication paths are shared on the same optical fiber using frequency conversion to avoid interference issues, wherein the second communication path is provide to a remote extension unit to remote antenna unit. In another embodiment, the optical fiber-based distributed antenna systems may be configured to allow to provide MIMO communication configurations with existing components. Existing capacity of system components are employed to create second communication paths for MIMO configurations, thereby reducing overall capacity, but allowing avoidance of frequency conversion components and remote extension units. | 05-08-2014 |
20140140705 | METHOD AND APPARATUS FOR INTERFERENCE SUPPRESSION IN RADIO-OVER-FIBER COMMUNICATION SYSTEMS - According to one embodiment of a method for interference suppression in radio-over-fiber communication systems, the method uses a mode selection module to continuously update real time information of at least two mobile stations and determine to enter a cross mode or a single mode. In the single mode, when a mobile station approaches a switching point, a single mode command is issued to control at least one first specific remote antenna unit (RAU). In the cross mode, when an immediate cross condition is a new cross condition, a new cross mode table is generated, and when the position of any one mobile station of the at least two mobile stations cross a threshold, a cross mode command is issued to control at least one second specific RAU according to a corresponding cross mode table. | 05-22-2014 |
20140169798 | HIGH SPEED DATA SERIAL CONNECTION INTERFACE APPARATUS, CPRI TRANSMITTING AND RECEIVING METHOD - A high speed data serial connection interface apparatus, CPRI transmitting and receiving methods thereof are disclosed. A high speed data serial connection interface apparatus according to the present invention includes: a data transmitter configured to count a continuous NCB of 0 or 1 in an input data block, select an LSI value, and perform up scaling on data in the block in accordance with the selected LSI value to transmit the data through an optical fiber in accordance with a CPRI (common public radio interface) protocol; and a data receiver configured to receive the data transmitted by the data transmitter, restore the LSI value from the received data, and perform down scaling on the received data in accordance with the restored LSI value to restore original data. | 06-19-2014 |
20140193159 | Systems And Methods For Providing Optical Signals Through A RF Channel Of A Rotary Coupler - Optical and RF energy may be provided simultaneously or otherwise across a rotary coupler using separate communication paths. The rotary coupler may be provided with an optical transmission line that passes inside or through the center of an inner conductor of a coaxial RF transmission line that itself extends across the rotational interface/s of the rotary coupler. Both the optical transmission line and the RF transmission line may be positioned at, or close to, the axis of rotation of the rotary coupler. The rotary coupler may be configured to transfer optical and RF energy across rotational interface/s of the rotary coupler using an optical rotary joint positioned inside the inner conductor of a RF channel transmission line that itself is substantially centered at, and in line with, the rotational axis of the rotary coupler. | 07-10-2014 |
20140199080 | ADVANCED FIBER NODE - Circuitry of a hybrid fiber-coaxial network may comprise a first transceiver configured to connect the circuitry to an optical link, a second transceiver configured to connect the circuitry to an electrical link, a first processing path, a second processing path, and a switching circuit. In a first configuration, the switching circuit may couple the first transceiver to the second transceiver via the first processing path. In a second configuration, the switching circuit may couple the first transceiver to the second transceiver via the second processing path. The first transceiver may comprise a passive optical network (PON) transceiver and the second transceiver may comprise a data over coaxial service interface specification (DOCSIS) physical layer transceiver. The switching circuit may be configured based on the type of headend to which the circuitry is connected. | 07-17-2014 |
20140199081 | Feedback-Based Configuration of a Hybrid Fiber-Coaxial Network - Circuitry of a fiber node which is configured to couple to an optical link and an electrical link may comprise an electrical-to-optical conversion circuit for transmitting on the optical link. The circuitry may be operable to receive signals via the optical link. The circuitry may select between or among different configurations of the electrical-to-optical conversion circuit based on the signals received via the optical link. The signals received via the optical link may be intended for one or more gateways served by the fiber node or may be dedicated signals intended for configuration of the circuitry. The circuitry may be operable to generate feedback and insert the feedback into a datastream received from one or more gateways via the electrical link prior to transmitting the datastream onto the optical link. | 07-17-2014 |
20140205300 | SYSTEMS FOR DIFFERENTIAL OPTICAL SIGNALING - According to one embodiment, a system for transmitting differential optical signals can include an optical modulation device, a multi-core optical waveguide, and a balanced optical receiver. The optical modulation device can include at least one optical input port and multiple optical output ports. The optical modulation device can transform the optical input signal into multiple complimentary modulated optical signals that are transmitted from the multiple optical output ports. The multi-core optical waveguide can include multiple cores disposed within a cladding material. The multiple cores, the cladding material, or both can be configured to mitigate transmission of optical energy between the multiple cores. The balanced optical receiver can include multiple photodetectors. The balanced optical receiver can be communicatively coupled to the multiple cores of the multi-core optical waveguide. Each of the multiple photodetectors can transform at least one of the multiple complimentary modulated optical signals into an electrical signal. | 07-24-2014 |
20140270786 | INTEGRATED PRODUCTION OF SELF INJECTION LOCKED SELF PHASE LOOP LOCKED OPTOELECTRONIC OSCILLATOR - The present invention details fabrication guidelines of integrated optoelectronic oscillators with frequency and phase stability, having higher frequency selectivity in a relatively small size (compared to the larger size of a higher order electrically realized RF filter), reduced temperature sensitivity, and minimized frequency drift. The integrated photonic components and RF oscillator may use Silicon photonics and microelectronic integration using CMOS and BiCMOS technology, eliminating the need for bulky and/or discrete optical and microwave components. | 09-18-2014 |
20140270787 | AUTO COMMISSIONING FOR OPTIC DISTRIBUTED ANTENNA SYSTEM - An optic distributed system includes a head end unit (HE) comprising a head end radio frequency unit (HRFU), at least one remote unit (RU), a corresponding optic cable connected between the HRFU and the at least one RU, and a controller configured to detect a forward radio frequency (RF) signal received from a base transceiver station (BTS), to perform a system wide commissioning function on the HRFU corresponding to the detection, to perform the system wide commissioning function on the at least one RU in accordance with a signal intensity of the forward RF signal from the HRFU, and to perform the system wide commissioning function on the optic cable to compensate for losses in the optic cable during signal transmissions between the HRFU and the at least one RU. | 09-18-2014 |
20140270788 | METHOD OF FABRICATING AND OPERATING AN OPTICAL MODULATOR - A method of making an optical modulator by determining the material composition of the quantum well region in the waveguide portion of the modulator so that the modulator is transparent at a gain peak wavelength that is greater than the predetermined wavelength by a predetermined amount, and fabricating the modulator with the determined material composition. | 09-18-2014 |
20140270789 | OPTICALLY POWERED MEDIA CONVERTER - An optically powered media conversion device for performing optical to electrical conversion is disclosed. The conversion device includes at least one optical coupler for receiving at least one optical signal comprising at least one wavelength, wherein the at least one optical coupler extracts energy from the at least one optical signal, and at least one detector for extracting data from the at least one optical signal and converting the optical signal to an electrical signal using a photovoltaic process. The conversion device further includes a transmitter for converting an electrical signal to an optical signal and transmitting the optical signal to a first device. | 09-18-2014 |
20140321858 | Optical Network Termination Systems and Methods - Disclosed embodiments include optical network termination systems, network interface devices, and methods of terminating an optical telecommunications network. Telecommunications signals are conveyed over an optical fiber between an external telecommunications network and a processor at or near a customer premises. Some or all of the telecommunications signals are conveyed between the processor and devices within the premises over at least two internal transport media. One internal transport media is an electrically conductive internal transport medium. Another internal transport media is a wireless signal provided by a wireless access point. Power to the wireless access point is provided from the customer premises over the electrically conductive internal transport medium. | 10-30-2014 |
20140328596 | COMBINATION UNDERFILL-DAM AND ELECTRICAL-INTERCONNECT STRUCTURE FOR AN OPTO-ELECTRONIC ENGINE - A combination underfill-dam and electrical-interconnect structure for an opto-electronic engine. The structure includes a first plurality of electrical-interconnect solder bodies. The first plurality of electrical-interconnect solder bodies includes a plurality of electrical interconnects. The first plurality of electrical-interconnect solder bodies, is disposed to inhibit intrusion of underfill material into an optical pathway of an opto-electronic component for the opto-electronic engine. A system and an opto-electronic engine that include the combination underfill-dam and electrical interconnect structure are also provided. | 11-06-2014 |
20140334824 | FIBER OPTIC RECEIVER, TRANSMITTER, AND TRANSCEIVER SYSTEMS AND METHODS OF OPERATING THE SAME - A fiber optic receiver system is provided. The fiber optic receiver system includes: ( | 11-13-2014 |
20140348509 | FIBER-OPTIC COMMUNICATION APPARATUS AND FIBER-OPTIC COMMUNICATION TERMINAL INCORPORATING THE SAME - A fiber-optic communication apparatus includes a modulator, a combiner and an electro-optic converter. The modulator modulates a number (N) of radio frequency (RF) signals with the same frequency respectively into a number (N) of modulated signals with mutually different frequencies, where N≧2. The combiner is coupled to the modulator for combining the modulated signals therefrom into a combined signal that has a number (N) of components with mutually different frequencies. The electro-optic converter is coupled to the combiner for converting the combined signal therefrom into an optical signal that has a number (N) of components with mutually different frequencies. | 11-27-2014 |
20140376921 | OPTICAL CHANNELIZER FOR W-BAND DETECTION - An optically-downconverting channelizer is disclosed for W-band detection. The channelizer includes an input waveguide configured to carry an inputted signal having a plurality of wavelengths including a desired wavelength and a plurality of ring resonators arranged in parallel and coupled at spaced apart locations along the input waveguide for receiving the inputted signal, wherein each of the plurality of ring resonators is configured to pass a selected wavelength signal to an output end. The channelizer further includes a control waveguide that carries a second signal having a wavelength that differs from the desired wavelength by a predetermined amount, and a plurality of detectors coupled to respective output ends of the ring resonators, the plurality of detectors configured to produce channelized RF output signals representative of desired RF bands. | 12-25-2014 |
20150010310 | OPTICAL FIBER MODULE - An optical fiber module includes: a casing; a first optical fiber having a portion in the casing; a first optical transmitter in the casing, wherein the first optical transmitter is configured to emit a first optical signal to the first optical fiber; a second optical fiber having a portion in the casing, wherein optical signals transmitted through the second optical fiber are independent from those transmitted through the first optical fiber; and a first optical receiver in the casing, wherein the first optical receiver is configured to receive a second optical signal from the second optical fiber. | 01-08-2015 |
20150010311 | HYBRID ELECTRICAL-OPTICAL DATA COMMUNICATIONS CABLE WITH WIRELINE CAPACITANCE COMPENSATION - A communications cable is disclosed. The cable includes a first circuit configured to receive electrical data signals from a data source via an input connector, and convert the electrical data signals into optical signals for transmission by way of one or more optical fibers. The cable includes a second circuit configured to convert the optical signals received via the one or more optical fibers back to electrical data signals for providing to a data sink via an output connector. The cable includes a third circuit for applying pre- and post-signal conditioning to bi-directional control data for transmission to and received from the data sink via wires. The cable includes a fourth circuit for applying pre- and post-signal conditioning to bi-directional control data for transmission to and received from the data source via wires. The pre- and post-signal conditioning compensate for capacitance and/or resistance effects on the signals introduced by the wires. | 01-08-2015 |
20150037041 | DISTRIBUTED ANTENNA SYSTEM ARCHITECTURES - Optical fiber-based wireless systems and related components and methods are disclosed. The systems support radio frequency (RF) communications with clients over optical fiber, including Radio-over-Fiber (RoF) communications. The systems may be provided as part of an indoor distributed antenna system (IDAS) to provide wireless communication services to clients inside a building or other facility. The systems incorporate various functions, such as optical network terminal (ONT), splitter, and local powering, in antenna coverage areas. | 02-05-2015 |
20150043923 | ANALOG OPTICAL FIBER-BASED SIGNAL DISTRIBUTION SYSTEM AND METHOD - In an analog, fiber-based signal distribution system, a periodic electrical signal is frequency-multiplied by a factor of N, is converted to an optical signal, is optically amplified, is split among one or more optical fibers, is delivered by fiber to one or more remote units, is converted back to an electrical signal, is frequency-divided by the factor of N back to its original frequency, and can be used to generate synchronized clock signals at the remote units. The optical amplifier imparts a phase noise that is relatively independent of frequency, so that the phase noise contribution from the optical amplifier is advantageously decreased when the frequency divider reduces the frequency of the electrical signal. Compared to a distribution system that does not increase, then decrease, the frequency by a factor of N, the phase noise contribution from the optical amplifier is reduced by 20 log 10(N). | 02-12-2015 |
20150050026 | SYSTEM AND METHOD FOR INTEROPERATING A RADIO-OVER-FIBER BASED NETWORK IN A FIBER-TO-THE-HOME NETWORK - The present invention relates to a system for interoperating a full-duplex radio-over-fiber (RoF) network in a fiber-to-the-home (FTTH) network and to a method associated with the system. The system comprises, at the central station ( | 02-19-2015 |
20150071643 | OPTOELECTRONIC ASSEMBLY FOR SIGNAL CONVERSION - Aspects of the present disclosure include an optoelectronic assembly with a housing that defines a cavity and includes a first component and a glass component disposed on an opposite side of the cavity from the first component. The glass component may include a first surface and a second surface and a lens located on the first surface. An optical transmitter and/or an optical receiver may be mechanically coupled to the first component within the cavity and oriented to emit optical signals through the glass component and the lens. Conductive traces may be located on the second surface of the glass component and electrically coupled to the optical transmitter and/or the optical receiver. An electronic component may be coupled to at least one of the conductive traces. | 03-12-2015 |
20150078754 | OPTICALLY BALANCED OPTO-ELECTRICAL OSCILLATOR - An opto-electrical oscillator includes, in part, first and second optical phase modulators, a coupler, an optical-to-electrical signal conversion circuit, and a control circuit. The first optical phase modulator modulates the phase of a first optical signal in response to a first feedback signal to generate a first phase modulated signal. The second optical phase modulator modulates the phase of a second optical signal in response to a second feedback signal to generate a second phase modulated signal. The first and second optical signals travel through first and second optical paths respectively and are generated from the same optical source. The optical-to-electrical signal conversion circuit receives an optical signal from the coupler and in response generates an electrical signal applied to the control circuit. The output signals of the control circuit cause the first and second feedback signals to be out of phase. | 03-19-2015 |
20150078755 | INTERCONNECT STRUCTURE FOR E/O ENGINES HAVING IMPEDANCE COMPENSATION AT THE INTEGRATED CIRCUITS' FRONT END - The present invention relates to an interconnect structure for coupling at least one electronic unit for outputting and/or receiving electric signals, and at least one optical unit for converting said electric signals into optical signals and/or vice versa, to a further electronic component. The interconnect structure comprises an electrically insulating substrate ( | 03-19-2015 |
20150078756 | SYSTEM AND METHOD FOR A SUBSCRIBER-POWERED NETWORK ELEMENT - A system for powering a network element of a fiber optic wide area network is disclosed. When communication data is transferred between a central office (CO) and a subscriber terminal using a network element to convert optical to electrical (O-E) and electrical to optical (E-O) signals between a fiber from the central office and twisted wire pair, coaxial cable or Ethernet cable transmission lines from the subscriber terminal, techniques related to local powering of a network element or drop site by the subscriber terminal or subscriber premise remote powering device are provided. Certain advantages and/or benefits are achieved using the present invention, such as freedom from any requirement for additional meter installations or meter connection charges and does not require a separate power network. | 03-19-2015 |
20150086210 | WIRELESS FLAT OPTICAL CONNECTOR - Provided herein is a system that includes a communication link between a first electronic device and a second electronic device. The communication link includes a first flat connector disposed in the first electronic device and a second flat connector disposed in the second electronic device. Each of the flat connectors includes a lens coupled to a fiber optic cable. Data is transferred through the communication link from the first flat connector to the second flat connector over an air gap between the first flat connector and the second flat connector. | 03-26-2015 |
20150086211 | PLUGGABLE ACTIVE OPTICAL MODULE WITH MANAGED CONNECTIVITY SUPPORT AND SIMULATED MEMORY TABLE - A pluggable active optical module (AOM) having an electrical connector at a first end and one or more optical adapters at a second end is disclosed. The AOM includes a storage device interface at the second end, and a programmable processor coupled to the storage device interface and one or more first contacts of the electrical connector. The programmable processor is configured to access a storage device in one or more optical fibers through the storage device interface and provide physical layer management (PLM) information obtained therefrom to a host device connected to the electrical connector. The AOM also includes a switch coupled between a second contact of the electrical connector and ground, the switch coupled to the programmable processor such that that programmable processor can control the switch to selectively connect a second contact of the electrical connector to ground. | 03-26-2015 |
20150086212 | SYSTEM AND METHODS FOR FIBER AND WIRELESS INTEGRATION - Embodiments of the present invention pertain to optical wireless architecture and, in particular, to novel optical architecture to provide fiber-optic and wireless communication systems, links, and access networks. Certain embodiments of the invention pertain to a novel method and apparatus to provide 109.6 Gb/s capacity over spans of 80-km SMF and 2×2 MIMO. Conversion of PM-QAM modulated wireless mm-wave signal to an optical signal as well as 80-km fiber transmission of the converted optical signal is also realized. | 03-26-2015 |
20150110496 | PREASSEMBLED OPTOELECTRONIC INTERCONNECT STRUCTURE - An interconnect component is provided fabricated as a preassembled optoelectronic interconnect structure. The interconnect structure has an optical waveguide link with first and second optoelectronic circuits attached to first and second ends of the waveguide link. The optoelectronic circuits include active optical componentry which facilitates optical signal communication across the optical waveguide link. Further, first and second pluralities of electrical contacts are associated with the first and second optoelectronic circuits, respectively, to facilitate electrically, operatively connecting the interconnect structure between first and second components of an electronic assembly as, for instance, a single, field-replaceable unit. The first and second components of the electronic assembly may be, for instance, stacked electronic components of the electronic assembly, or laterally offset components of a substantially planar electronic assembly. | 04-23-2015 |
20150110497 | Data Transmission Method, Apparatus, and System - The present invention discloses a data transmission method. The method includes: receiving, by a data processing apparatus, at least two data flows transmitted from at least two remote base stations among multiple remote base stations, aggregating the at least two data flows into one flow of output data, and transmitting the output data to a central site device; or receiving, by the data processing apparatus, one flow of synthetic input data transmitted from the central site device, restoring the synthetic input data to at least two data flows before synthesis, and transmitting the restored at least two data flows to corresponding remote base stations. | 04-23-2015 |
20150117863 | OPTICAL RECEIVING DEVICE AND TRANSMISSION DEVICE - An optical receiving device includes: a conversion device that converts an input burst optical signal into a positive phase electrical signal and a negative phase electrical signal; an amplification device that amplifies the positive phase electrical signal and the negative phase electrical signal; a first output terminal that outputs the positive phase electrical signal; a second output terminal that outputs the negative electrical signal; a first transmission line that couples the amplification device with the first output terminal and transmits the positive phase electrical signal; a second transmission line that couples the amplification device with the second output terminal and transmits the negative phase electrical signal; and a control device that reduces a potential difference between the first transmission line and the second transmission line in a no-signal period that is provided between burst optical signals. | 04-30-2015 |
20150147066 | CABLE FOR RADIO FREQUENCY COMMUNICATION - A fiber-optic based communication system for facilitating communication between a client device, such as a hand-held computing device, and a host device, such as a desktop computer, a lap-top computer, a tablet device or any other computing device. The communication system includes a cable comprising electronic devices positioned at terminal ends of an optical fiber that provides for communication between the client device and the host device, and the communication occurs via electromagnetic coupling in the near field at at least one end of the cable. | 05-28-2015 |
20150295651 | Matching Impedance of a Dielectric Waveguide to a Launching Mechanism - A digital system has a dielectric core waveguide that has a longitudinal dielectric core member. The core member has a body portion and a transition region, with a cladding surrounding the dielectric core member. The body portion of the core member has a first dielectric constant. The transition region of the core member has a graduated dielectric constant value that gradually changes from the first dielectric constant value adjacent the body portion to a third dielectric constant. | 10-15-2015 |
20150304045 | BACKHAUL LINK FOR DISTRIBUTED ANTENNA SYSTEM - A distributed antenna and backhaul system provide network connectivity for a small cell deployment. Rather than building new structures, and installing additional fiber and cable, embodiments described herein disclose using high-bandwidth, millimeter-wave communications and existing power line infrastructure. Above ground backhaul connections via power lines and line-of-sight millimeter-wave band signals as well as underground backhaul connections via buried electrical conduits can provide connectivity to the distributed base stations. An overhead millimeter-wave system can also be used to provide backhaul connectivity. Modules can be placed onto existing infrastructure, such as streetlights and utility poles, and the modules can contain base stations and antennas to transmit the millimeter-waves to and from other modules. | 10-22-2015 |
20150326315 | Bucket Truck Operational Improvement Apparatus - An insulated bucket truck intercom facilitates safe/reliable bucket-to-cab and bucket-to-ground communications during truck operations, while in close proximity to high voltage power sources/lines. A truck-powered cab transceiver and battery-powered bucket transceiver are selectively interconnected by fiber optic cable to maintain high voltage electrical isolation of at least 10 KV/foot. A hands-free bucket transceiver liberates bucket workers from depressing a PTT button to communicate during repair operations. A PTT cab transceiver prevents stray sounds from distracting bucket workers. Bucket elevation through extension of the telescoping boom, with fiber optic cable secured thereto, is accommodated by a self-storing fiber optic reel assembly positioned at each section. Play in the cable and a spring-loaded pulley member accommodates boom articulation. A cab transceiver radio interface permits interference-free communication between the bucket transceiver and/or the cab transceiver, with a remote walkie-talkie up to 10 miles distant. A sensor warns of imminent truck tipping from boom overreaching. | 11-12-2015 |
20160013844 | SYSTEMS, METHODS, AND DEVICES FOR INCREASING RADIO FREQUENCY (RF) POWER IN DISTRIBUTED ANTENNA SYSTEMS | 01-14-2016 |
20160020856 | OPTICAL ENGINES AND OPTICAL CABLE ASSEMBLIES CAPABLE OF LOW-SPEED AND HIGH-SPEED OPTICAL COMMUNICATION - Optical engines and optical cable assemblies incorporating optical engines capable of transmitting low-speed and high-speed signals over the same optical fibers are disclosed. In one embodiment, an optical engine includes a low-speed transmit (Tx) line, a low-speed receive (Rx) line, a high-speed data lane, an optical transceiver device, and a control circuit. The high-speed data lane includes a high-speed Tx lane and a high-speed Rx lane. A high-speed signal present on the high-speed Tx lane is converted to a high-speed optical signal at an optical Tx lane, and a high-speed optical signal received at an optical Rx lane is converted to a high-speed signal that is provided to the high-speed Rx lane. The control circuit selectively routes the low-speed Tx signal at the low-speed Tx line directly to the optical transceiver device in real time, and also routes a low-speed Rx signal from the transceiver to the low-speed Rx line. | 01-21-2016 |
20160036529 | DIRECTIONAL MULTIBAND ANTENNA - There is disclosed a directional multi-band antenna comprising a substrate structure, a plurality of RF units arranged at the substrate structure to provide an RF phased array, the RF phased array having an angular scan range, an array of optical units arranged at the substrate structure and interspersed amongst the RF units, an array of optical lensing devices supported over the substrate structure, the array of optical lensing devices being substantially RF transmissive and being arranged to correspond with the arrangement of the optical units, such that each optical unit may communicate light signals with an associated optical lensing device so as to communicate light signals along an optical axis within the angular scan range of the RF phased array | 02-04-2016 |
20160043807 | HIGH ALTITUDE PLATFORM - An apparatus for generating electrical energy at altitude, comprising a tether connecting a substantially ground level location, part to a platform at an elevated location, the tether comprising a conduit coupled to an electrical generator at the platform, the conduit arranged to allow the flow of a fuel fluid from the substantially ground level location to the elevated location, and the electrical generator being operable to convert energy in the fuel fluid to electrical energy at the elevated location. | 02-11-2016 |
20160050028 | QUASI-OPTICAL COUPLER - A quasi-optical coupling system launches and extracts surface wave communication transmissions from a wire. At millimeter-wave frequencies, where the wavelength is small compared to the macroscopic size of the equipment, the millimeter-wave transmissions can be transported from one place to another and diverted via lenses and reflectors, much like visible light. Transmitters and receivers can be positioned near telephone and power lines and reflectors placed on or near the cables can reflect transmissions onto or off of the cables. The lenses on the transmitters are focused, and the reflectors positioned such that the reflected transmissions are guided waves on the surface of the cables. The reflectors can be polarization sensitive, where one or more of a set of guided wave modes can be reflected off the wire based on the polarization of the guided wave modes and polarization and orientation of the reflector. | 02-18-2016 |
20160050029 | HYBRID DONGLE CABLE ASSEMBLY - The present disclosure is directed to a hybrid dongle cable assembly connectable to a standard copper cable terminated by an RJ-45 jack. The hybrid dongle cable assembly has a cable carrying electrical conductors and optical fibers. The hybrid dongle cable assembly further includes first and second connectors housing a fiber optic transceiver, DC converter, and integrated circuit chip, wherein both of the connectors are connectable to a copper cable. | 02-18-2016 |
20160080081 | DEVICES AND METHODS FOR MODULAR OPTICAL CABLING SYSTEMS - A modular optical cabling system converts and transmits digital electronic signals from a source such as a computer to any suitable target device such as a display or a projector through an optical backbone. A modular transmitting unit connects the source to a modular optical cable and converts the digital electrical signals to optical signals. A modular receiving unit receiver connects the modular optical cable to the target device and converts the optical signals to digital electrical signals. A directional modular optical cable connects between the transmitter unit and the receiver unit. | 03-17-2016 |
20160080092 | GRAPHENE PLASMONIC COMMUNICATION LINK - A signal transfer link includes a first plasmonic coupler, and a second plasmonic coupler spaced apart from the first plasmonic coupler to form a gap. An insulator layer is formed over end portions of the first and second plasmonic couplers and in and over the gap. A plasmonic conductive layer is formed over the gap on the insulator layer to excite plasmons to provide signal transmission between the first and second plasmonic couplers. | 03-17-2016 |
20160105239 | METHOD AND APPARATUS FOR ARRANGING COMMUNICATION SESSIONS IN A COMMUNICATION SYSTEM - Aspects of the subject disclosure may include, for example, a system for determining a usage pattern, and sending instructions to a plurality of waveguide systems to transmit or receive electromagnetic waves along a surface of each of a plurality of wires according to the usage pattern. Other embodiments are disclosed. | 04-14-2016 |
20160112130 | INTERCOM TRANSCEIVER WITH FIBER OPTIC LINK - A system and method for carrying a downstream optical signal and an upstream optical signal on a fiber optic link is disclosed. The system and method includes a first transceiver unit that receives an input communication signal from at least one external communication device at an electrical input port, a transmitter that converts the input communication signal into an optical signal and transmits the optical signal as an downstream optical signal on a fiber optic link, a receiver at the second transceiver unit that receives the downstream optical signal and converts the downstream optical signal into an electrical communication signal, and a first circuit in the second transceiver unit that determines whether the second transceiver couples the electrical communication signal to a two wire intercom circuit or a four wire intercom circuit. | 04-21-2016 |
20160112132 | APPARATUS FOR PROVIDING COMMUNICATION SERVICES AND METHODS THEREOF - Aspects of the subject disclosure may include, for example, a system for modulating a first electrical signal to generate first modulated electromagnetic waves, and transmitting the first modulated electromagnetic waves on a waveguide located in proximity to a transmission medium. In one embodiment, the first electromagnetic waves can induce second electromagnetic waves that propagate on an outer surface of the transmission medium. The second electromagnetic waves can have a first spectral range that is divided into, contains or otherwise includes a first control channel and a first plurality of bands. Other embodiments are disclosed. | 04-21-2016 |
20160112133 | GUIDED-WAVE TRANSMISSION DEVICE AND METHODS FOR USE THEREWITH - Aspects of the subject disclosure may include, for example, a transmission device that includes a transmitter that generates a first electromagnetic wave to convey data, the first electromagnetic wave having at least one carrier frequency and corresponding wavelength. A coupler couples the first electromagnetic wave to a transmission medium having at least one inner portion surrounded by a dielectric material, the dielectric material having an outer surface and a corresponding circumference, wherein the coupling of the first electromagnetic wave to the transmission medium forms a second electromagnetic wave that is guided to propagate along the outer surface of the dielectric material via at least one guided-wave mode that can include an asymmetric mode, wherein the at least one carrier frequency is within a microwave or millimeter-wave frequency band and wherein the at least one corresponding wavelength is less than the circumference of the transmission medium. Other embodiments are disclosed. | 04-21-2016 |
20160149642 | Driver Chip for Minimizing Transmission Impairments and for Boosting Signal Transmission Rates - In accordance with the present invention, a driver chip is provided for transmitting optical signals over an optical fiber. The driver chip includes, in combination, a tapped delay equalizer, an amplifier and control circuitry. Operationally, the tapped delay equalizer modifies an input digital signal to create a compensated signal by compensating for anticipated impairments and distortions introduced during signal transmission. The amplifier then receives the compensated signal to provide gain and bias in order to establish a proper operating point for an E/O device. The control circuitry is interconnected with the tapped delay equalizer and with the amplifier to establish and control tap weights for the tapped delay equalizer to compensate for electrical and optical bandwidth limitations, along with optical dispersion effects. | 05-26-2016 |
20160154191 | DEVICE FOR INCOUPLING AND/OR OUTCOUPLING OPTICAL SIGNALS | 06-02-2016 |
20160182154 | HIGH PERFORMANCE OPTICAL REPEATER | 06-23-2016 |
20170237490 | A HIGH-SPEED OPTICAL MODULE FOR FIBRE CHANNEL | 08-17-2017 |
20170237497 | Quasi-Wireless Communication System | 08-17-2017 |
20170237506 | SYSTEM AND METHOD FOR A SUBSCRIBER-POWERED NETWORK ELEMENT | 08-17-2017 |
20180026713 | SYSTEMS, METHODS, AND DEVICES FOR INCREASING RADIO FREQUENCY (RF) POWER IN DISTRIBUTED ANTENNA SYSTEMS | 01-25-2018 |