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Transmission interface between two stations or terminals

Subclass of:

375 - Pulse or digital communications

375219000 - TRANSCEIVERS

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DocumentTitleDate
20080291985AGILE SPECTRUM MONITORING IN A RADIO TRANSCEIVER - The invention relates to a method and an apparatus for agile RF spectrum monitoring in a radio system with dynamic frequency access. It provides a spectrum monitor based on non-coherent heterodyne detection that utilizes a DDS signal generator to digitally generate a reference signal at a variable reference frequency for mixing with an input RF signal received from an RF antenna, a pass-band filter and a log amplifier for obtaining energy estimates at a monitored transmission frequency corresponding to the reference frequency. A processor is provided for adaptively selecting sets of monitored transmission frequencies, for controlling the DDS signal generator, and for processing obtained spectral energy estimates to assess spectral usage data.11-27-2008
20120183024DIGITAL SIGNAL TRANSFER METHOD AND APPARATUS - The invention relates to a digital signal transfer method and apparatus in which signals are transferred between first and second electrically isolated circuits. An announcement signal is transferred from the first circuit to the second circuit and a data signal is transferred from the first circuit to the second circuit within a data signal time window associated with the announcement signal.07-19-2012
20120183023IMPLEMENTATIONS FOR WIRELESS SIGNAL PROCESSING - Implementations including methods, apparatuses, and systems relating to processing wireless signals are disclosed. Such processing may be performed, at least in part, at a receiver platform receiving such wireless signals and/or at a remote computing platform to obtain information that may be used in a variety of contexts, including cellular communications, radio-frequency identification, and navigation. In some techniques, modulated signals are received at a receiver platform, and at least partially demodulated and used to generate data. The data is transmitted to one or more network resources, and processed to obtain information based on the information in the modulated signals.07-19-2012
20110194592TRANSCEIVING APPARATUS AND TRANSCEIVING SYSTEM USING THE SAME - A transceiving apparatus includes a transmitter module and receiver module. The transmitter module has a transmitting circuit and an auxiliary circuit. The transmitting circuit generates a first differential input signal pair when the transceiving apparatus operates in a transmitter mode (TX mode). The auxiliary circuit is coupled to the transmitting circuit, for generating a differential output signal pair according to the first differential input signal pair when the transceiving apparatus operates in the TX mode. The receiver module is coupled to the auxiliary circuit, for receiving a second differential input signal pair according to a common mode voltage when the transceiving apparatus operates in a receiver mode (RX mode). Herein the auxiliary circuit generates the common mode voltage when the transceiving apparatus operates in the RX mode.08-11-2011
20100074311TIME ACCURATE CONTROL OF RF OVER A DIGRF INTERFACE - A communication system includes a RF subsystem that communicates with a BB subsystem through a digital RF-BB interface multiplexing I/Q data and control signals in both TX and RX directions. The RF subsystem includes a FIFO buffer in each respective TX and RX chain and a timer that assigns a timestamp to the continuous stream in both TX and RX chains whenever it is equal to a time event from the BB subsystem. The BB subsystem includes a sample counter that counts the number (k) of data samples at the FIFO buffer and a controller that defines the time event. Precise alignment at the air interface between a data burst from the RF subsystem and a data burst from the BB subsystem can be achieved using the timer, based on the relation between the timer value (n) and the sample count (k).03-25-2010
20100103993Methods and Arrangements in a Digital Subscriber Line Network - The present invention relates to method and arrangements for reducing crosstalk in a DSL system. This is achieved by providing the users in the network with a ghost line, i.e. a virtual line that should reflect the damage to be caused to the remaining users in the network, and that each user allocates the PSDs such that the allocated PSD is optimized against this ghost line. A central agent is adapted to continuously and individually update the ghost lines by collecting a measure indicating the impact of crosstalk from all modems.04-29-2010
20100067567Multiple High-Speed Bit Stream Interface Circuit - A high-speed bit stream interface module interfaces a high-speed communication media to a communication Application Specific Integrated Circuit (ASIC) via a Printed Circuit Board (PCB) or the communication ASIC to another communication ASIC. The high-speed bit stream interface includes a plurality of signal conditioning circuits. The signal conditioning circuits service each of an RX path and a TX path and include a limiting amplifier and a clock and data recovery circuit. The signal conditioning circuit may also include an equalizer and/or an output pre-emphasis circuit. The clock and data recovery circuit has an adjustable Phase Locked Loop (PLL) bandwidth that is set to correspond to a jitter bandwidth of a serviced high-speed bit stream.03-18-2010
20090262790METHOD OF RECOVERY FROM ACTIVE PORT TX FAILURE IN Y-CABLE PROTECTED PAIR - A method is provided for defect recovery in Y-cable protected pair connections in communication systems. A receiver at a remote end monitors for loss of signal on the single fiber optic cable arriving at the remote end, and transmits an RDI back to the local end where it is detected by each of two receivers, one on an active card and one on a standby card. When a persistent RDI is detected by each receiver, transmission of content is flipped from the active transmitter to the standby transmitter, without performing a full APS. If RDIs are no longer received from the remote end, then the defect was likely in the single transmitter of the active card or the single optical fiber leading from the active card to the Y-junction, and the local end realizes that switching transmission to the standby card resolved the problem and a full APS is performed. The invention allows for quick recovery from defects in portions of the Y-cable communication system which may not otherwise be correctable, or even detectable, by conventional higher level fault recovery protocols.10-22-2009
20130070823Transceiver Spectrum Control for Cross-Talk Mitigation - Embodiments of methods, apparatuses, and systems for preprocessing a transmit signal of a transceiver are disclosed. One method includes estimating parameters of a communication link between the transceiver and a link partner transceiver, estimating cross-talk coupling of the transceiver to at least one other transceiver, and adjusting at least one of a transmit power or a transmit signal waveform based on the estimated parameters and estimated cross-talk. One apparatus includes a transceiver that is operative to obtain parameters of a communication link between the transceiver and a link partner transceiver, and to obtain a representation of cross-talk coupling of the transceiver to at least one other transceiver. Further, a controller of the transceiver is operative to adjust at least one of a transmit power level or a transmit signal waveform based on the estimated parameters and estimated cross-talk.03-21-2013
20130051441System and Method for Improving Channel Efficiency in a Wireless Link - System and method for improving channel efficiency in a wireless link between an access-point transceiver and a first transceiver. The first transceiver may have a first data throughput rate that is lower than the maximum possible data throughput rate of the wireless link. The first transceiver may include a first receive buffer. An indication of the first data throughput rate and a size of the first receive buffer may be received and stored by the access-point transceiver. A first size of a first data packet for transmission to the first transceiver may be determined by the access-point transceiver based on one or more of the first data throughput rate and/or the size of the first receive buffer. The first data packet of the first size may be transmitted to the first transceiver by the access-point transceiver at a data rate that is higher than the first data throughput rate.02-28-2013
20110310942HIGHLY FLEXIBLE FRACTIONAL N FREQUENCY SYNTHESIZER - One embodiment of the present invention provides a phase-locked loop (PLL) for synthesizing a fractional frequency. The PLL can include a 1/N frequency divider, a voltage-controlled oscillator (VCO), a programmable phase mixer, and a phase detector. The programmable phase mixer can be coupled between an output of the VCO and an input of the frequency divider, wherein the programmable phase mixer is configured to receive the output clock signal from the VCO and generate a first clock signal of frequency f12-22-2011
20110310941REMOTELY LOCATED RADIO TRANSCEIVER FOR MOBILE COMMUNICATIONS NETWORK - A remotely located radio transceiver system for a mobile communications network is disclosed, comprising a radio transmitter and a radio receiver, and an asynchronous packet-based digital input/output for connecting the remotely located radio transceiver system to at least one digital processing unit. The at least one digital processing unit is adapted to provide digitised signals to, or receive digitised signals from, the remotely located radio transceiver system. A corresponding method for generating a transmit signal comprises receiving, from the at least one digital processing unit, asynchronous packet-based data at the asynchronous packet-based input/output of the remotely located radio transceiver system, and processing the asynchronous packet-based data to form the transmit signal. Another corresponding method for processing a receive signal is also disclosed.12-22-2011
20120219045COMMUNICATION APPARATUS AND METHOD FOR COMMUNICATION - An RC generating unit generates a first ranging code by performing a logical operation to first seed data, repeats a process for generating a second ranging code by performing the logical operation to second seed data generated when generating the first ranging code until generation of a Nth ranging code, stores the 1st through Nth seed data corresponding to the 1st through Nth ranging codes in the memory. And the RC generating unit generates a transmission ranging code, in response to a reception of specification data of a transmission ranging code transmitted from a base station, by performing the logical operation to the seed data corresponding to the specification data.08-30-2012
20090041100LINK AWARE MOBILE DATA NETWORK - Methods, systems, and devices are described for communicating data from multiple data terminals to an aggregator terminal over a communication link having changing link conditions. In some embodiments, source data is received at multiple data terminals, each in communication with an aggregator terminal over a communication link. For example, during a live newscast, one mobile camera may receive live video of an event from a first position while another mobile camera receives live video of the event from a second position. For various reasons (e.g., as the cameras move) each communication link may experience independently changing link conditions. Each data terminal encodes the source data (or store source data for later encoding) as a function of its respective link conditions, and transmits encoded source data over its respective communication link to the aggregator terminal.02-12-2009
20090041099LINK INTERFACE TECHNIQUE INCLUDING DATA INDICATOR SYMBOLS - In some embodiments, a chip includes transmitters and generation circuitry to provide data symbols and special characters to the transmitters to be transmitted. The chip also includes match detection circuitry to detect when the data symbols match the special characters; and indicator symbol generation circuitry to create data indicator symbols in response to detected matches and to provide the data indicator symbols to the generation circuitry to be provided to the transmitters to be transmitted. Other embodiments are described.02-12-2009
20110013679ALL DIGITAL DSL SYSTEM MIGRATION - The described implementations relate to migrating from a Digital Subscriber Line (DSL) system implementing Plain Old Telephone Service (POTS) equipment that handles analog communication signals to a DSL system that implements All Digital (AD) enabled equipment capable of handling DSL data and Internet Protocol (IP) telephony traffic.01-20-2011
20090268794COMMUNICATION SYSTEM AND METHOD FOR OPERATING A COMMUNICATION SYSTEM - The invention relates to a communication system (10-29-2009
20090268793COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD - A communication device is provided that includes a first transceiver and a second transceiver. The first transceiver transmits/receives a first signal corresponding to a first communication standard in a frame of the first communication standard. The second transceiver, with a clock synchronized with the first transceiver, processes a second signal corresponding to a second communication standard and transmits/receives the second signal in a frame of the first communication standard.10-29-2009
20090046768METHOD AND APPARATUS FOR ADAPTIVE REDUCED OVERHEAD TRANSMIT BEAMFORMING FOR WIRELESS COMMUNICATION SYSTEMS - A multi input multi output (MIMO) transceiver having a channel estimation module being responsive to received samples including channel state information (CSI) and operative to generate time domain beamforming parameters, in accordance with an embodiment of the present invention. The multi input multi output (MIMO) transceiver further includes an adaptive beamforming parameters module coupled to receive said time domain beamforming parameters and operative to generate time domain adaptive beamforming parameters, said adaptive beamforming parameters module operative to process said time domain beamforming parameters to generate frequency domain adaptive beamforming parameters, a decoding module coupled to receive said frequency domain adaptive beamforming parameters and operative to generate data bits, a channel parameters module coupled to receive said data bits and operative to extract said time domain adaptive beamforming parameters, an encoding module coupled to receive said time domain adaptive beamforming parameters and operative to generate a data packet, said encoding module operative to encode said data packet to generate a modulated data stream, and a beamform matrices module coupled to receive said modulated data stream and operative to generate a beamformed data stream based on said frequency domain adaptive beamforming parameters, said MIMO transceiver operative to process said beamformed data stream to generate output signals and to transmit said output signals by forming beam patterns.02-19-2009
20120114026Datalink System Architecture Using OTS/COTS Modem for MIMO Multipath Sensing Networks - An apparatus interfaces a commercial-off-the-shelf (COTS)/off-the-shelf (OTS) modem for pulsed data communication using existing sensor aperture among radar platforms. The apparatus includes a demodulator for receiving a sequence of first pulse signals, at least one first pulse signal of the sequence of first pulse signals being modulated with an input signal. The demodulator includes a pulse regeneration module for regenerating a pulse timing of the sequence of first pulse signals and a pulse demodulation module for demodulating the sequence of first pulse signals to recover the input signal in synchronization with the pulse timing of the sequence of first pulse signals.05-10-2012
20100014567AUTOMATIC ADJUSTMENT METHOD FOR SERIAL INTERFACE CIRCUIT AND ELECTRONIC DEVICE HAVING SERIAL INTERFACE CIRCUIT - An automatic adjustment method for a serial interface circuit and an electronic device having a serial interface circuit perform automatic adjustment to optimum values of the transmitter, under any connection conditions, and without causing rule violations of the serial interface protocol. Various setting values are used in a transmitter and transmission frame retransmit instructions stipulated by the interface protocol are utilized. The frames are transmitted to a connected device using various setting values, and the results from the connected device (01-21-2010
20100040123SYSTEM DEBUGGING METHOD, SYSTEM DEBUGGING EQUIPMENT, PROCESSOR, WIRELESS-COMMUNICATIONS INTERFACE IC AND INTERFACE METHOD THEREOF - A pulse transmission technique is used for wireless communication between a microcomputer (02-18-2010
20100309966Microwave System - A microwave system comprises an antenna, antenna feed, a radio transceiver, and appropriate cabling among the aforementioned. Cost, performance and reliability improvements are achieved with further integration of these elements and with design improvements in the antenna feed. One improvement is the integration of the radio transceiver with the antenna feed. This improvement has many benefits including the elimination of RF cables and connectors. Another improvement is the utilization of the digital cable to power the integrated radio transceiver and a center fed parabolic reflector. One embodiment is disclosed for a radio gateway supporting OSI layers 1-7 supported by an Ethernet cable. Another embodiment is a radio with a client controller suitable for supporting OSI layers 1-3, and supported by a USB cable.12-09-2010
20110299577DIFFERENTIAL DRIVER WITH COMMON MODE VOLTAGE TRACKING AND METHOD - In a transceiver, a transmitter circuit is provided substantially the same common-mode voltage regardless of whether the transceiver is in a transmitting or receiving mode. In one embodiment, the transmitter circuit includes a driver circuit which, in the transmission mode of the transceiver, drives an output differential signal, and which, in the receiving mode of the transceiver, provides a termination circuit for an input differential signal. A variable resistor is provided to connect between a supply voltage and the driver circuit, the resistance of the variable resistor is selected such that the common-mode voltage of the output differential signal of the transmission mode substantially equals the common-mode voltage in the input differential signal of the receiving mode.12-08-2011
20110286503DSL SYSTEM TRAINING - Existing and future standardized VDSL2 and other systems can be integrated into and used with a vectored DSLAM or other vectored or non-vectored DSL system, without a new user disrupting service to other users in the same or a nearby binder, in some cases by using transmit power, CARMASK and/or PSDMASK DSL capabilities to reduce both downstream and upstream training-signal levels so that training of a new DSL line is non-disruptive, despite a lack of knowledge of the pre-existing binder. For vectored systems, the crosstalk from that tone can be observed, learned and then added to the vectoring system so that any subsequent excitation on that tone would be eliminated by vector processing. A second tone then can be added in the same way, etc. In non-vectored DSLs that might be operating in a binder or line set, once these non-vectored lines are observed to be present, a vectored line set controller, such as a DSL optimizer, then can anticipate the potential interference from such non-vectored lines.11-24-2011
20090028226Open collector / open drain integrated bidirectional digital isolator - An open collector/open drain interface, such as I01-29-2009
20110292977ELECTROMAGNETIC INTERFERENCE REDUCTION IN WIRELINE APPLICATIONS USING DIFFERENTIAL SIGNAL COMPENSATION - A transceiver with a compensator circuit and a method for signaling are disclosed. A common mode signal detector in the transceiver detects a common mode signal, and the compensator circuit adjusts one or more component of a differential signal based on the common mode signal to pre-compensate the differential signal so that the effect of noise interference or imbalance in the circuitry is reduced.12-01-2011
20090274202SYSTEM PARTITIONING FOR MULTI-MOBILE DEVICES - A communication device partition for multiple device data standards to be received on one baseband integrated circuit is described. At least two interfaces are partitioned according to the data rate speed of various types of data standards and coupled to a multimode SDR modem. A digital baseband processor is coupled to the multimode SDR modem and receives the various types of application data compliant with various data standards.11-05-2009
20090034591METHOD OF PAIRING DEVICES - Some aspects include a method of associating electronic devices for communicating data. The method includes receiving a message on a first device indicating that a second device is discoverable and pairable. The method further includes determining whether the first device is pairable, transmitting a pairing response to the second device based on the determination that the first device is pairable, and pairing the first device to the second device in response to the received message and the determination that the first device is pairable. For example, some aspects include devices such as headsets, watches, and medical devices configured to use such methods for communicating data.02-05-2009
20100014566METHOD AND APPARATUS FOR A 10GBASE-T SMALL FORM FACTOR PLUGGABLE (SFP+) MODULE - A 10GBase-T Small Form Factor Pluggable (SFP+) module. The 10GBase-T SFP+ module has a 10GBase-T physical layer (PHY) module with a communication interface and an interface module with SFP+ high speed serial electrical interface (SFI). During receive operation, 10GBase-T data is received from a link partner via the communication interface. The 10GBase-T PHY module processes the 10GBase-T data into intermediate data. The interface module receives the intermediate data from the 10GBase-T PHY module, processes the intermediate data into 10GBase-R data, and outputs the 10GBase-R data to a SFI host via the SFI. During transmit operation, 10GBase-R data is transmitted by a SFI host via the SFI. The interface module processes the 10GBase-R data into intermediate data. The 10GBase-T PHY receives the intermediate data from the interface module, processes the intermediate data into 10GBase-T data, and outputs the 10GBase-T data to a link partner via the communication interface.01-21-2010
20110261865System for fext cancellation of multi-channel transceivers with precoding - The present invention relates to data processing techniques in multi-channel data transmission systems. In this invention, a novel approach is proposed to deal with FEXT interferences in the application of high/ultra-high speed Ethernet systems. Compared with the traditional FEXT cancellation approaches, the proposed FEXT canceller can deal with the non-causal part of FEXT, and thus can achieve better cancellation performance. Instead of using the conventional DFE, structure, TH precoding technique is incorporated into the proposed design to alleviate the error propagation problem. The resulting FEXT cancellers do not contain feedback loops which makes the high speed VLSI implementation easy. A modified design is also developed by using a finite signal as the input to the FEXT canceller such that the hardware complexity of the proposed FEXT canceller can be reduced.10-27-2011
20090154535Communicating Signals Through Two Twisted Pairs - In one embodiment, a method includes communicating with a Digital Subscriber Line (DSL) transceiver unit through a first twisted pair that comprises a first plurality of wires, and communicating with the DSL, transceiver unit through a second twisted pair that comprises a second plurality of wires. A training procedure is implemented to receive first signals from the DSL transceiver unit through the first plurality of wires of the first twisted pair, and to send second signals to the DSL transceiver unit through the second plurality of wires of the second twisted pair.06-18-2009
20100111148METHOD FOR SYNCHRONIZING SEAMLESS RATE ADAPTATION - A DMT system and method with the capability to adapt the system bit rate on-line in a seamless manner. The DMT system provides a robust and fast protocol for completing this seamless rate adaptation. The DMT system also provides a framing and encoding method with reduced overhead compared to conventional DMT systems. The DMT system and method provide seamless rate adaptation with the provision of different power levels. This framing and encoding method enables a system with seamless rate adaptation capability. The system and method of the invention can be implemented in hardware, or alternatively in a combination of hardware and software.05-06-2010
20100111145BASEBAND UNIT HAVING BIT REPETITIVE ENCODED/DECODING - A baseband unit includes an input/output interface and a processing module. The input/output interface module receives a data word of outbound data and outputs a plurality of outbound symbols. The processing module converts the data word into a bit repetitive data word; encodes the bit repetitive data word to produce an encoded data block; and converts the encoded data block into the plurality of outbound symbols.05-06-2010
20090154536STARTUP PROTOCOL FOR HIGH THROUGHPUT COMMUNICATIONS SYSTEMS - A startup protocol is provided for use in a communications system having a communications line with a master transceiver at a first end and a slave transceiver at a second end, each transceiver having a noise reduction system, a timing recovery system and at least one equalizer all converging at startup of the system. The operation of the startup protocol is partitioned into stages. The first stage includes the step of converging the equalizer and the timing recovery system of the slave while converging the noise reduction system of the master. Upon completion of the first stage the protocol enters a second stage which includes the step of converging the equalizer and the timing recovery system of the master, converging the noise reduction system of the slave, freezing the timing recovery system of the slave, and resetting the noise reduction system of the master. Upon completion of the second stage, the protocol enters a third stage which includes the step of reconverging the noise reduction system of the master. The protocol then enters a fourth stage in which the master transceiver and the slave transceiver are ready to communicate with each other.06-18-2009
20100118928Transceiver Apparatus and Method Having Ethernet-Over-Power and Power-Over-Ethernet Capability - A transceiver device for coupling between a power line and a network interface unit includes a power line modem for transmitting and receiving data between the power line and the network interface unit and a power circuit coupled to the power line modem that is adapted to deliver a DC power signal to the network interface unit. The power circuit includes a discovery circuit adapted to determine the type of network interface unit that is attached. A load path control circuit switches the DC power signal between a PHY interface and a connector interface of the power line modem based on the determined type.05-13-2010
20100128766SIGNAL TRANSMISSION SYSTEM, INTERFACE DEVICE, AND SIGNAL TRANSMISSION METHOD - There is provided a signal transmission system including an information processing device and an interface device. The information processing device codes transmitted data into a code that does not include a direct-current component, and the information processing device transmits the code while superimposing the code on a direct-current power. A polarity of the code is inverted every half a period of a clock. The interface device detects a polarity inversion period of a signal received from the information processing device, and the interface device reproduces the clock based on the detection result.05-27-2010
20100124260SYSTEM AND METHOD FOR TRANSCEIVER CONTROL OF PERIPHERAL COMPONENTS - Peripheral components of a wireless radio system can be controlled by a wireless transceiver. The transceiver stores parallel or serial bit patterns in memory, each bit pattern corresponding to a particular control configuration for one or more peripheral components. A further control device, such as baseband controller, issues an address corresponding to the desired functional operation of the peripheral components to the transceiver. A memory sub-system of the transceiver uses the address to output the appropriate bit pattern. The bit pattern can be provided in parallel to statically control individual control lines, or can be converted into a serial bitstream decodable by a command decoder. The command decoder can then decode the bitstream and locally issue the appropriate control signals for the peripheral components.05-20-2010
20100128764CALIBRATION METHOD FOR NON-IDEAL TRANSCEIVERS - A method of determining non-ideality characteristics introduced on a signal by a transceiver is disclosed. The transceiver has an up-conversion transmitter and a down-conversion receiver. In one aspect, the method includes: a) generating a signal comprising at least one known training symbol, b) up-converting this signal with a first frequency to a first signal in the transmitter, c) transferring the first signal from the transmitter to the receiver, d) down-converting with a second frequency this transferred first signal to a second signal in the receiver, the second frequency being different from but linked to the first frequency, e) detecting at least one of the training symbols in the second signal; and f) separating, in the frequency domain, at least one of the components of at least one of the detected training symbols for determining the non-ideality characteristics.05-27-2010
20120033717INTERFACE DEVICE FOR HOST DEVICE, INTERFACE DEVICE FOR SLAVE DEVICE, HOST DEVICE, SLAVE DEVICE, COMMUNICATION SYSTEM AND INTERFACE VOLTAGE SWITCHING METHOD - A communication system in which an operating voltage can be selected from a plurality of interface voltages enables an interface voltage to be switched in a stable manner during operation of the system. When the interface voltage is to be switched, a host device (02-09-2012
20120106604System and Method of Communication Using at Least Two Modulation Methods - A device may be capable of communicating using at least two type types of modulation methods. The device may include a transceiver capable of acting as a master according to a master/slave relationship in which communication from a slave to a master occurs in response to communication from the master to the slave. The master transceiver may send transmissions structured with a first portion and a payload portion. Information in the first portion may be modulated according to a first modulation method and indicate an impending change to a second modulation method, which is used for transmitting the payload portion. The discrete transmissions may be addressed for an intended destination of the payload portion.05-03-2012
20090285273SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SIGNAL PROCESSING PROGRAM - A signal processing device includes an auxiliary data detection unit that detects presence or absence of auxiliary data from an SDI (Serial Digital Interface) signal and outputs a detection signal indicating the presence or absence of auxiliary data, a delay unit that delays the detection signal output from the auxiliary data detection unit by at least one field, a payload identifier control unit that outputs a control signal for controlling provision of payload identifier according to a logical operation with signals including the detection signal output from the auxiliary data detection unit and the detection signal delayed by the delay unit, and a payload identifier provision unit that adds a payload identifier to the SDI signal and outputs the signal if the control signal commands provision, and adds no payload identifier to the SDI signal and outputs the signal as it is if the control signal commands no provision.11-19-2009
20090296791Multi-Pair Gigabit Ethernet Transceiver - Various systems and methods providing high speed decoding, enhanced power reduction and clock domain partitioning for a multi-pair gigabit Ethernet transceiver are disclosed. ISI compensation is partitioned into two stages; a first stage compensates ISI components induced by characteristics of a transmitter's partial response pulse shaping filter in a demodulator, a second stage compensates ISI components induced by characteristics of a multi-pair transmission channel in a Viterbi decoder. High speed decoding is accomplished by reducing the DFE depth by providing an input signal from a multiple decision feedback equalizer to the Viterbi based on a tail value and a subset of coefficient values received from a unit depth decision-feedback equalizer. Power reduction is accomplished by adaptively truncating active taps in the NEXT, FEXT and echo cancellation filters, or by disabling decoder circuitry portions, as channel response characteristics allow. A receive clock signal is generated such that it is synchronous in frequency with analog sampling clock signals and has a particular phase offset with respect to one of the sampling clock signals. This phase offset is adjusted such that system performance degradation due to coupling of switching noise from the digital sections to the analog sections is substantially minimized.12-03-2009
20090296792Method, device and system for eliminating DSL crosstalk - A method for eliminating DSL crosstalk is provided. The method includes steps of a coordinated transceiver device notifies an existing online opposite device of a signal sent to a new online opposite device; the coordinated transceiver device receives a calculation result that is obtained by the existing online opposite device based on a detected error signal and the signal sent to the new online opposite device, the coordinated transceiver device updates the coefficient of a vector pre-encoder according to the calculation result. A computer program tangibly embodied on a computer-readable storage medium, computer-readable storage medium, DSL opposite device, DSL coordinated transceiver device and system for eliminating the DSL crosstalk are also provided to implement the method. The provided method may reduce the duration of the crosstalk that the new online opposite device generates on the existing online opposite device, and enable the new online opposite device to join a vector group faster.12-03-2009
20110206099METHOD AND SYSTEM FOR BLUETOOTH, NEAR FIELD COMMUNICATION AND SIMULTANEOUS FM TRANSMISSION AND RECEPTION FUNCTIONS - A method for wireless communication may include, in an RF chip including transmit and receive functions, performing generating a first signal to enable transmission and/or reception of Bluetooth signals. The first signal may be input to a plurality of direct digital frequency synthesizers (DDFSs). The plurality of DDFSs may be clocked via the generated first signal to enable simultaneous transmission and reception of frequency modulated (FM) signals, and to enable transmission and/or reception of near field communication (NFC) signals. The first signal may be generated via a local oscillator generator (LOGEN) to enable the transmission and/or reception of the Bluetooth signals. The first signal may be generated via a phase locked loop (PLL) to enable the transmission and/or reception of the Bluetooth signals.08-25-2011
20100061431POWER SAVING IN A RADIO FREQUENCY MODEM - A radio frequency (RF) modem for a mobile communications device comprises a monitoring circuit; an RF circuit having a demodulator, the RF circuit being for receiving RF signals; a baseband processing unit, for processing baseband signals; and a controller. The RF modem can enter a sleep mode in which the monitoring circuit is operational and the RF circuit and the baseband processing unit are not operational. The controller is responsive to an indication from the monitoring circuit to control the RF modem to enter a monitoring mode in which the RF circuit is operational and the baseband processing unit is not operational. The RF circuit is configured for data reception in the monitoring mode. The controller then controls the RF modem to exit the monitoring mode and to enter a baseband processing mode in which the baseband processing unit is operational to process data signals provided by the RF circuit.03-11-2010
20100215087SIGNAL TRANSMISSION APPARATUS, TRANSMISSION METHOD AND COMPUTER STORAGE MEDIUM THEREOF - A signal transmission apparatus, a transmission method and a computer storage medium thereof are provided. The signal transmission apparatus may generate reference signals which are antipodal to each other and transmit the reference signals by subcarriers which are adjacent to each other. Thereby, the communication channel of the wireless network may be estimated accurately to improve the reliability of the following signal transmission.08-26-2010
20080247445ARCHITECTURE AND METHODS FOR COEXISTENCE OF WIRELESS RADIOS HAVING DIFFERING PROTOCOLS - Embodiments of systems and methods for the coexistence of wireless radios having differing protocols are generally described herein. Other embodiments may be described and claimed. In some embodiments systems and methods for synchronizing clocks between two radios, and using a signal to notify one of the radios to refrain from transmitting for a timeperiod are described.10-09-2008
20090168855LINK CALIBRATION - In some embodiments, provided are methods and circuits to control the power efficiency of a transceiver or a transmitter in a scalable I/O link (a link whose bandwidth and power can be adjusted to meet changing performance demands).07-02-2009
20080240211Autonomously generating ramp profiles in a transceiver - In one implementation, a method includes receiving control information in a transceiver from a baseband processor and computing ramp values in the transceiver based on the control information. The ramp values may be computed in a signal generator of the transceiver such as an algorithmic generator. Depending on mode of operation, the ramp values may be provided to a power amplifier or a gain block of the transceiver.10-02-2008
20120069880Neutral Host Architecture For A Distributed Antenna System - A remote radio head unit (RRU) system for achieving high data rate communications in a Distributed Antenna System is disclosed. The Distributed Antenna System is configured as a Neutral Host enabling multiple operators to exist on one DAS system. The present disclosure enables a remote radio head unit to be field reconfigurable and support multi-modulation schemes (modulation-independent), multi-carriers, multi-frequency bands and multi-channels. As a result, the remote radio head system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems.03-22-2012
20090003420SYSTEMS AND METHODS FOR EMBEDDING A FIRST SIGNAL IN THE CODING OF A SECOND SIGNAL - A method for embedding a first signal in the coding of a second signal is described. A value of the first signal is determined. A codebook based on the value of the first signal is generated. A second signal is encoded using a codeword from the generated codebook. The encoded second signal is modulated into a plurality of symbols, wherein the symbols are distributed according to the value of the first signal. The modulated symbols are inserted into one or more time slots of a sequence.01-01-2009
20090080504Delay compensation for transmit/receive chain calibration and multiuser MIMO - Compensation is provided for errors in channel information that can result when there is a delay between the measurement of the channel information and the subsequent use of the channel information. In one embodiment, downlink channel prediction is performed within a user device, in a system employing closed loop MIMO with implicit feedback, to reduce the occurrence of errors during the calculation of a calibration parameter within an associated base station. In another embodiment, channel prediction is used to predict a downlink channel state for a user device at a future time when a multi-user MIMO data transfer is to occur between a base station and a number of selected user devices.03-26-2009
20110228829SYSTEM AND METHOD OF RADIO CHANNEL MANAGEMENT IN A WIRELESS NETWORK - A method and system for management of radio frequency channels in a wireless communications network including at least one access point and at least one mobile device coupled for wireless communication to the access point, the method including periodically generating a transmission channel testing scenario which includes a plurality of transmission channels for testing by the access point; transmitting data between the access point and said mobile device over each transmission channel according to the scenario; testing Quality of Service (QoS) parameters in the access point and the mobile device over each said transmission channel; determining a transmission channel from the scenario having best QoS parameters; and reconfiguring the access point to transmit on the transmission channel having best QoS parameters.09-22-2011
20100034244WIRELESS FIXED TERMINAL - A wireless fixed terminal is provided. The wireless fixed terminal includes a speaker, configured to output an analog audio signal, a first modem unit, configured to receive a radio signal from the wireless communication network and demodulate the radio signal into a digital signal, modulate the received digital signal and send the digital signal to the wireless communication network. The wireless fixed terminal also includes a converting unit, configured to convert the digital signal demodulated by the first modem unit to an analog signal and output the analog signal to the speaker, and convert an analog signal from the speaker to a digital signal and output the digital signal to the first modem unit, and a second modem unit, configured to modulate the digital signal demodulated by the first modem unit and send the modulated signal to a wired terminal, and demodulate an analog signal from the wired terminal into a digital signal and output the digital signal to the first modem unit.02-11-2010
20100166048METHOD AND APPARATUS FOR MULTI-TRANSMITTER POWER CONTROL07-01-2010
20100183059Physical Layer Device Having a Serdes Pass Through Mode - A physical layer device (PLD), comprising: a first serializer-deserializer (SERDES) device having a first parallel port; a second SERDES device having a second parallel port; a third SERDES device having a third parallel port; and a path selector being selectively configurable to provide either (i) a first signal path between the first and second parallel ports, or (ii) a second signal path between the first and third parallel ports.07-22-2010
20100183058Network and Method for Transmitting Data in a System of Pipes - A network contains a main pipe, a branch pipe leading to the main pipe, an electric data line laid in the main pipe and one laid in the individual connecting pipe, one central data distribution unit and a terminal unit. A data line is introduced into the main pipe and is connected to the data distribution unit, its other end laid in the system of pipes being configured as a transmitting or receive antenna. An additional data line is introduced into the system of pipes via the individual connecting pipe and is connected to the terminal unit with one end and another end is configured as a transmitting or receive antenna. The transmitting or receive antenna of the data line serving as an antenna and the transmitting or receive antenna of the additional data line form a pair of antennas between the antennas of which a radio link exists.07-22-2010
20100254442Configuring the Virtual Noise Parameters of a Digital Subscriber Line - An apparatus comprising a digital subscriber line (DSL) transmitter configured to transmit a transmitter referred virtual noise for a tone in a subscriber line, wherein the transmitter referred virtual noise is based on a time history of a noise condition in the subscriber line. Also disclosed is an apparatus comprising at least one processor configured to implement a method comprising obtaining a transmitter referred virtual noise for a DSL tone using a plurality of noise condition measurements, and determining a DSL bitloading using the transmitter referred virtual noise.10-07-2010
20100238985Cellular Uploader for Digital Game Camera - A communications device for communicating digital data from an electronic device, such as a game camera or a game feeder, to a central administrative server via a machine to machine network, such as a cellular telecommunications network. More specifically, the present relates to a cellular uploader that is programmed via software to communicate data between a digital camera and a server hosting a game management website.09-23-2010
20100238986SYSTEM AND METHOD FOR EFFECTUATING A SIGNAL CARRIER CONFIGURATION - Systems and methods for effectuating a signal carrier configuration are disclosed. In one embodiment, the method comprises receiving an order, determining a signal carrier on which the order was received, determining a signal carrier configuration based at least in part on the order and the determined signal carrier, and changing the state of one or more signal carriers to effectuate the signal carrier configuration.09-23-2010
20100208782COMMUNICATION DEVICE AND TWO-DIMENSIONAL COMMUNICATION SYSTEM USING THE SAME - A switch circuit connects a switch (SW) to a connector when a connector receives a signal and connects the switch (SW) to a terminal when the connector receives power. The connector receives a signal and power transmitted at the same frequency, outputs the received signal to a communication unit through an attenuator, and outputs the received power to a power receiving unit. The communication unit carries out reception processing to the signal and outputs the processed signal to a computer. The power receiving unit carries out reception processing to the power and stores the processed power. The power receiving unit supplies the communication unit or the computer with the stored power.08-19-2010
20100054313Single-wire transmission interface and method of transmission through single-wire - The present invention discloses a single-wire transmission interface, and a method of transmission through single-wire. The method comprises: providing a single-wire signal through a single-wire; and transmitting information only in a transmission period defined by a fixed first time period starting from one of a rising or a falling edge of the single-wire signal.03-04-2010
20100111147Variable PHY Margin to Combat Ingress Noise - A method includes determining a first aggregate received power level of an orthogonal frequency division multiplexed (OFDM) signal received at a first network node, adjusting a nominal PHY Margin an amount that is dependent upon a measurement of an aggregate received power level of the OFDM signal, determining a data transmission rate based on the adjusted nominal PHY Margin, and receiving data being transmitted in accordance with the data transmission rate at the first node.05-06-2010
20100111146COMMUNICATION DEVICE AND COMMUNICATION SYSTEM - A communication device with digital and analog circuits mixedly mounted thereon, for which the influence of noise generated in its interface part on the analog circuit part can be reduced, which does not interfere with the downsizing of the communication device. The communication device has a communication part, such as semiconductor communication device, and a control part, such as a semiconductor control device operable to control the communication part. The communication part and control part are operated in asynchronization with each other. The communication part includes an analog circuit. The interface circuit of the communication part, which is interfaced with the control part, receives a clock signal supplied from the communication part and conducts a synchronous interface. The control part stops supplying the clock signal during the time when the communication part operates the analog circuit.05-06-2010
20090074040METHODS FOR MANAGING A MULTI DATA TYPE COMMUNICATION LINK - Methods for operating a multi data type communication link transceiver, including: testing the type of the link partner transceiver. If the link partner transceiver is not a multi data type communication link transceiver, operating the multi data type communication link according to the detected type of the link partner transceiver. If the link partner transceiver is a multi data type communication link transceiver, further including the steps of negotiating the functionality required from the multi data type communication link with the link partner, and switching to an appropriate mode of operation03-19-2009
20090323786METHOD AND APPARATUS FOR IDENTIFYING AND SELECTING PROPER CABLE CONNECTIONS - In accordance with an exemplary embodiment, a system comprises a first electrical component, a second electrical component, and at least two cables connecting the first and second electrical components. Time varying signals are transmitted through the cables with at least one of the cables carrying an injected DC signal. The system associates the cable carrying the DC signal with a predetermined time varying signal and is capable of electronically switching the routes of the time varying signals if the cables are incorrectly physically attached to the first and second electrical components.12-31-2009
20120195354Serial Protocol for Agile Sample Rate Switching - The invention provides a communication protocol and serial interface having an approximately fixed interface clock and capable of accommodating a variety of communication rates. The interface employs a variable-length frame that may be expanded or reduced to obtain a desired communication rate, even though the interface clock rate is held approximately constant. The invention further provides a method for designing an agile barrier interface. In particular, the barrier clock rate is preferably selected to be an approximate common multiple of the various communication rates that the barrier interface must handle. The frame length corresponding to each communication rate may then be obtained by dividing the barrier clock rate by the EA rate. Finally, the invention provides an agile barrier capable of communicating data across a serial interface at a variety of data rates and at an approximately fixed interface clock rate.08-02-2012
20100278222Validated signal resumption in DSL systems - An apparatus includes a DSL transceiver configured to transit to a DSL wait state in which a power transmitted from the DSL transceiver to a local-end line is substantially reduced in response to an interruption or substantial stop at the DSL transceiver of reception of DSL communications from the local-end line. The DSL transceiver is configured to transmit to the local-end line a DSL acknowledge signal in response to receiving from the local-end line a DSL wait signal. The DSL transceiver is configured to resume to transmit DSL communications to the local-end line at a power substantially higher than the power transmitted thereto in the DSL wait state in response either to receiving from the local-end line DSL transmissions at a substantially higher power than received there from in the DSL wait state or to receiving from the local-end line a second DSL acknowledge signal.11-04-2010
20110243204PRECODING METHOD AND DEVICE - A method for a transmitting terminal in a multi-user multi-antenna environment to perform precoding includes: receiving feedback information from a plurality of receiving terminals; estimating a channel between the transmitting terminal and the plurality of receiving terminals by using the feedback information; and generating a plurality of transmission symbols by applying a first nonlinear precoding method and a second nonlinear precoding method to a plurality of symbols and the estimated channel to be transmitted to the plurality of receiving terminals. The first nonlinear precoding method is used to eliminate interference between subchannels of the same receiving terminal, and the second nonlinear precoding method is used to eliminate interference between the receiving terminals.10-06-2011
20100296558WIRELESS TRANSFER APPARATUS AND WIRELESS TRANSFER METHOD - According to one embodiment, a wireless transfer apparatus generates physical addresses by adding values, which are different between the source-side wireless transfer apparatuses, to a physical address received from a sink device, and transmits the generated physical addresses to the source-side wireless transfer apparatuses. The wireless transfer apparatus switches the source-side wireless transfer apparatus, which is to be used for transmitting content data to the sink device, to the source-side wireless transfer apparatus corresponding to the identifier which is associated with the physical address included in a source change request transmitted from the sink device.11-25-2010
20110026568SYSTEM AND METHOD FOR MINIMIZING THE AMOUNT OF DATA BEING SENT ON A NETWORK FOR SUPERVISED SECURITY SYSTEMS - A system and method are disclosed for communicating heartbeat signals representative of the condition of a security system to a monitoring station. A controller is provided that transmits a heartbeat signal to a monitoring station within a given time period and awaits an acknowledgement signal from the monitoring station. If an acknowledgement signal is received within a time interval from the transmission of the heartbeat signal, then the time period is reset and another heartbeat signal is not sent until the next time period. If an acknowledgement signal is not received by the controller within a few seconds of transmitting the heartbeat signal, then another heartbeat signal is sent from the controller to the monitoring station. Heartbeat signals are only transmitted from the controller if an acknowledgement signal is not received from the monitoring station. In this manner, the amount of data sent over a communication link is reduced.02-03-2011
20100034243Circuit Configuration for a Serial Communication With Wake Up Function - A circuit configuration for serial communication includes a first half for receiving and emitting sensing and/or actuating signals; a second half for receiving and emitting sensing and/or actuating signals, a two wire connecting line, which connects bidirectionally the first half and the second half of the circuit configuration; and a wake up switching device for waking up the first and second halves of the circuit configuration out of their standby mode without quiescent current. Independently of the switching state of the wake up switching device, a high level state at the output of a second low pass filter device holds a first switching device in its closing state, and a high level state at the output of a first low pass filter device holds a second switching device in its closing state, as a result of which a self-holding of the supply voltage is guaranteed.02-11-2010
20100232484BIDIRECTIONAL DIGITAL COMMUNICATION CIRCUIT AND A BIDIRECTIONAL DIGITAL COMMUNICATION METHOD - A bidirectional digital communication circuit and a bidirectional digital communication method for combining multi-channel signals to a duplex digital communication system apply time division multiplexing. The signals can be unidirectional and bidirectional; signals relationship is not necessary. The direction detector circuit determines signal directional automatically to avoid the signal loop. It's suitable for applying to fiber, cable or wireless communication system which is needed to minimize the communication channels.09-16-2010
20100040122SIMULTANEOUS BI-DIRECTIONAL DATA TRANSFER - Embodiments provide methods, systems, and apparatuses including combinatorial or reconfigurable circuitry having input/output (I/O) circuitry with an I/O terminal and an input buffer. The I/O terminal receives a receive signal at a receive signal level that was transmitted from another integrated circuit at a transmitted signal level which is either a first or a second different signal level. The input buffer compares the receive signal to one or more reference signals to generate an input signal corresponding to the transmitted signal level based at least in part on the result of the comparison, even if the receive signal is received at a third signal level in between the first and the second signal level.02-18-2010
20090213916METHOD, APPARATUS AND SYSTEM FOR DATA TRANSMISSION - A method, apparatus and system for data transmission include determining an idle data rate under a total data rate during data transmission; determining a corresponding parameter adjusting policy according to the idle data rate and a preset threshold; sending an instruction carrying the parameter adjusting policy to a far end entity so as to instruct the far end entity to adjust the associated parameter during data transmission accordingly; and adjusting an associated parameter during data transmission accordingly according to the parameter adjusting policy. According to various embodiments of the present invention, the system bandwidth is saved and the service quality of the system is improved.08-27-2009
20090213915Method for the non-bitrate-dependent encoding of digital signals on a bus system - To provide a bus system having a plurality of stations that are coupled together by an arrangement of lines and each have a transceiver and a control unit, a microcontroller, or the like, and to specify a method of encoding a digital message on a bus system in which method the digital message comprises at least one part that is encoded in a non-bitratedependent manner and by means of which method it becomes possible for a transceiver or a system base chip to independently receive and analyze the data transmitted on the bus line, and in particular, in accordance with the method, to individually wake a bus node by means of a given wake-up message even when the part of the bus node that is on standby at the relevant point in time does not have an accurate timer and also does not have any knowledge of the bitrate at which the data is transmitted on the bus, provision is made, under the bus system according to the invention, for at least one transceiver (08-27-2009
20110249713Parameterized Codebook with Subset Restrictions for use with Precoding MIMO Transmissions - One aspect of the teachings herein relates to signaling codebook restrictions, to restrict the precoder recommendations being fed back from a remote transceiver, so that precoder selections made by the remote receiver are restricted to permitted subsets of overall precoders within a defined set of overall precoders, or to permitted subsets within larger sets of conversion precoders and tuning precoders, for the case where the overall precoders are represented in factorized form by conversion and tuning precoders. As a non-limiting example, these teachings advantageously provide for precoder restrictions in LTE or LTE-Advanced networks, where ongoing development targets the use of larger, richer sets of precoders, and where the disclosed mechanisms for determining, signaling, and responding to subset restrictions provide significant operational advantages.10-13-2011
20110249711SIGNAL TRANSMITTING CIRCUIT AND RELATED METHOD - A signal transmitting circuit includes: a signal generating circuit arranged to generate an output signal to a loading device according to an input signal; an adjusting circuit; and a matching circuit having a first port coupled to the adjusting circuit and a second port coupled to the signal generating circuit, wherein the second port is arranged to couple to the loading device so as to provide a matching impedance corresponding to the loading device; and the adjusting circuit is arranged to generate an adjusting signal of which a voltage applied on the first port is substantially equal to a voltage of the output signal applied on the second port.10-13-2011
20110150056METHOD AND APPARATUS FOR COAXIAL CABLE BASED BROADCAST AND COMMUNICATION CONVERGENCE IN HOME NETWORK - Disclosed are a method and an apparatus for a coaxial cable based broadcast and communication convergence in a home network for supporting a frequency band less than a frequency band used in Multimedia over Coax Alliance (MoCA). The apparatus for broadcast and communication convergence includes a broadcast processor that transmits and receives broadcast signals from an external broadcasting network; a communication processor that transmits and receives communication signals from an external communication network; and a broadcast and communication converging unit that is operated as a terminal for the broadcast signals input to the broadcast processor and the communication signals input to the communication processor, and divides an occupied frequency band of the broadcast signals from a remaining frequency band, and uses the remaining frequency band as a channel for the communication signals.06-23-2011
20100260246TRANSMITTER AND RECEIVER FOR GIGA-BPS HIGH-THROUGHPUT WIRELESS COMMUNICATION SYSTEM WITH MULTIPLE ANTENNAS AND MULTIPLE BANDS - Provided is a transmitter and a receiver for a high-throughput wireless communication system. The transmitter includes a baseband transmitter, a DIF transmitter, and a RF transmitter. The baseband transmitter performs a MAC protocol process on transmission signals and reception signals and processes the transmission signals by dividing an entire transmission band into n bands in a physical layer process of the transmission data, where n is a natural number. The DIF transmitter combines transmission signals of each band from the baseband transmitter and outputs m channel signals corresponding to a number of transmission antennas, where m is a natural number. The RF transmitter modulates each of the channel signals transferred from the DIF transmitter and transmits the modulated signals through m antennas.10-14-2010
20100118927INTERFACE CIRCUIT - A player and an AV amplifier are connected via a cable. An amplifying device amplifies an output signal supplied to an output terminal 05-13-2010
20110249712Precoder Structure for MIMO Precoding - The teachings herein present a method and apparatus that implement and use a factorized precoder structure that is advantageous in terms of performance and efficiency. In particular, the teachings presented herein disclose an underlying precoder structure that allows for certain codebook reuse across different transmission scenarios, including for transmission from a single Uniform Linear Array (ULA) of transmit antennas and transmission from cross-polarized subgroups of such antennas. According to this structure, an overall precoder is constructed from a conversion precoder and a tuning precoder. The conversion precoder includes antenna-subgroup precoders of size N10-13-2011
20100260245System and method for low-power echo and next cancellers - A method to design low complexity and low power echo and NEXT cancellers based on wordlength reduction technique is presented. A circuit architecture to implement echo and cancellers is also presented. The low complexity and low power design relies on the fact that a TH precoder can be viewed as an IIR filter with an input equal to the sum of the original input to the TH precoder and a compensation signal. The proposed design also relies on the fact that sum of the original input to the TH precoder and the compensation signal has finite levels, which can be represented in less bits than the original input of the echo and NEXT cancellers. An improved design by exploiting the statistics of the compensation signal is also proposed to further bring down the complexity and power consumption of these cancellers.10-14-2010
20100027598SOFTWARE RADIO TRANSCEIVER - Security performance is improved by a software radio transceiver which can exchange software which is used for demodulation. A radio communication unit receives a radio signal. A conversion unit converts the radio signal received by the radio communication unit into digital data. The transceiver has a plurality of demodulating units which demodulate sub-data. A dividing unit divides the digital data converted by the conversion unit and distributes the sub-data to the plurality of demodulating units. A connection unit connects results obtained after the sub-data divided and distributed to the plurality of demodulating units by the dividing unit was demodulated by each of the demodulating units.02-04-2010
20110150055Active Auxiliary Channel Buffering - A system and a method for communicating configuration data between a source device and a sink are described. An active buffer receives data from an auxiliary communication channel which communicates data between the source device and the sink device. The active buffer modifies data received from the auxiliary communication channel. For example, the active buffer amplifies the received data or electrically reshapes the received data. The modified data is then transmitted from the active buffer to a destination device. In one embodiment, the auxiliary communication channel is bi-directional and upon receiving data from a first device, the active buffer is modified to permit uni-directional transmission of data from the first device to a second device.06-23-2011
20090016418Wearable system for data transmission and reception and method of using the same - System having wearable components operable in mobile outdoor conditions and methods of using the same are presented. A system may include at least one speaker, a microphone, a first transceiver coupled to a first antenna, a second transceiver coupled to a second antenna, the first and second transceivers operating under first and second protocols, respectively. A controller and a power source are also provided. In one embodiment, a system may include an audio assembly, a housing assembly, a resilient seal, and a housing receptacle. The housing assembly may be in releasable engagement with the receptacle. A method of controlling a user device in accordance with one embodiment of the invention may include receiving data transmitted according to a second protocol, decoding the data and encoding the decoded data according to a first protocol, different from the second, and then transmitting the encoded data to the user device. The method may also be practiced in the reverse direction.01-15-2009
20080279264High speed data bus for communicating between wireless interface devices of a host device - A circuit includes a first wireless interface circuit that communicates packetized data to a first external device in accordance with a first wireless communication protocol. A second wireless interface circuit communicates packetized data to a second external device in accordance with a second wireless communication protocol. A plurality of signal lines communicate at least four lines of cooperation data between the first wireless interface circuit and the second wireless interface circuit, wherein the cooperation data relates to cooperate transceiving in a common frequency spectrum.11-13-2008
20110211622WIRELESS COMMUNICATION METHOD AND SYSTEM - A method providing wireless communication between a first station and a second station. The method establishes at least one communication path between at least one pair of antennas including a first antenna of the first station and a second antenna of the second station, wherein at least one of the first and second antennas is a narrow beam antenna, selects at least one part of the bandwidth available on the communication path, and transmits data between the pair of antennas over the selected part of the bandwidth.09-01-2011
20080253434OPTION MANAGEMENT IN A SOFTWARE-DEFINED RADIO - The option management approach for SDRs includes control of installation and/or access to waveform features and/or platform features. A software-defined radio may include an antenna, a radio transceiver coupled to the antenna, and at least one memory storing a master feature database including a plurality of selectable waveform features and a plurality of selectable platform features, and a selected options database including selected waveform features and selected platform features from the master feature database. A controller cooperates with the at least one memory to configure the selected options database based upon an input options file and to permit reconfiguration of the selected options database based upon a subsequent input options file. The controller also cooperates with the radio transceiver and the selected options database to operate the SDR based upon the selected waveform features and the selected platform features.10-16-2008
20080205497Assembly Comprising a Wireless-Communication Semiconductor Chip - A semiconductor chip (CHP) and a semiconductor chip driver (RDR) communicate with each other in a wireless fashion. To that end, the semiconductor chip driver (RDR) generates an energy flux (FX08-28-2008
20100284452CAPACITIVE DIVIDER TRANSMISSION SCHEME FOR IMPROVED COMMUNICATIONS ISOLATION - A communication system comprising a first and second transceiver is provided. The first transceiver has a first and second port coupled to a communication medium, wherein a first differential capacitor couples the first and second ports together. The second transceiver has a third and fourth port each AC coupled to the communication medium, wherein a second differential capacitor couples the third and fourth ports together.11-11-2010
20100329315Transmitting Video Between Two Stations in a Wireless Network - In accordance with some embodiments, a differential frame may be constructed, for example, by differencing frames or using an error prediction method. More frequently and less frequently used values of a differential frame are identified. Symbols with lower and higher transmission energy are identified. The more frequently used values of the differential frame are mapped to the symbols with lower transmission energy to reduce overall energy consumption.12-30-2010
20120275501PLUGGABLE SYNCHRONIZATION CLOCKS, NETWORKS, SYSTEMS AND METHODS RELATED THERETO - A pluggable synchronization clock comprising: a pluggable transceiver and a system clock synchronization subsystem embodied within the pluggable transceiver. The system clock synchronization subsystem may be adapted to implement a packet based precision time protocol. The system clock synchronization subsystem may be further adapted to include a time stamp unit capable of adding a time stamp to a frame using hardware or software.11-01-2012
20110134975METHOD AND DEVICE FOR DATA PROCESSING AND COMMUNICATION SYSTEM COMPRISING SUCH DEVICE - A method and a device for data processing are provided, wherein at least one subcarrier is reserved by a network component for a modem to get connected to the network component. Furthermore, a communication system is suggested comprising said device.06-09-2011
20110134973APPENDABLE SYSTEM AND DEVICES FOR DATA ACQUISITION, ANALYSIS AND CONTROL - An appendable system includes a plurality of appendable devices that are adapted to interoperate with each other and/or a workstation via a communication network to monitor and/or control a process. Each of the appendable devices can communicate with one or more sensors and/or control outputs and includes a housing that facilitates mounting of the appendable device to a surface.06-09-2011
20110134974Digital Interface And Related Event Manager For Integrated Circuits - In one embodiment, the present invention includes a transceiver coupled to a baseband processor to receive digital control information that includes both event and schedule information, and which stores the digital control information in a storage of the transceiver. The transceiver may then be operated according to the event and schedule information.06-09-2011
20100098142SYSTEM AND METHOD OF PROVIDING TELECOMMUNICATIONS SPECIAL SERVICES TO A TELECOMMUNICATIONS CUSTOMER - A system and method for providing telecommunications special services to customers of a communications service provider includes receiving first communications signals from customer premise equipment. The first communications signals may be processed using a special services card to generate second communications signal. The second communications signal may be communicated to a line termination unit operating externally from a BBDLC. The second communications signal may be processed by the line termination unit to generate a third communications signal. The third communications signal may be communicated to a transport card operating in the BBDLC. By externally processing special services signals from the BBDLC, bandwidth of the BBDLC may be utilized more efficiently.04-22-2010
20100254443DIGITALLY CONTROLLED ISOLATED POWER CONVERTER - A digital SMPC (10-07-2010
20100195704Low Complexity Technique for Digital Subscriber Line (DSL) Power Control - An apparatus comprising a transmitter at a digital subscriber line (DSL) Cabinet configured to transmit a downstream signal in a subscriber line according to a power spectral density (PSD) mask, wherein the PSD mask comprises a relatively low power between a first transition frequency and a second transition frequency and a first relatively high power below about the first transition frequency and a second relatively high power above about the second transition frequency. Also included is an apparatus comprising at least one processor configured to implement a method comprising selecting a first transmission frequency and a second transmission frequency for a PSD that meets a target data-rate for transmission in a DSL, and limiting the PSD between the first transition frequency and the second transition frequency.08-05-2010
20110261866Loop-Through Circuit - An integrated circuit includes a digital interface for connection to a host controller; an antenna connection for connection to an antenna; a radio frequency transceiver for communicating data in accordance with one or more radio communication protocols, the radio frequency transceiver being configured to communicate radio frequency signals over the antenna connection in response to data exchanged over the digital interface; and radio loop-through circuitry for exchanging radio frequency signals with another integrated circuit, the radio loop-through circuitry being configured to provide radio frequency signals received at the antenna connection to an output connection of the integrated circuit.10-27-2011
20100014568Digital Signal Transfer Method and Apparatus - The invention relates to a digital signal transfer method and apparatus in which a signals are transferred between first and second electrically isolated circuits. An announcement signal is transferred from the first circuit to the second circuit and a data signal is transferred from the first circuit to the second circuit within a data signal time window associated with the announcement signal.01-21-2010
20080317106MCU WITH INTEGRATED VOLTAGE ISOLATOR AND INTEGRATED GALVANICALLY ISOLATED ASYNCHRONOUS SERIAL DATA LINK - An integrated circuit comprises a first microcontroller unit for executing instructions in accordance with a first clock frequency. The microcontroller located on a first die and includes a first processing core for providing a parallel stream of data in accordance with the first clock frequency. A second microcontroller unit executes instructions in accordance with the first clock frequency. The second microcontroller is located on a second die and includes a second processing core for receiving the parallel stream of data in accordance with the first clock frequency. Capacitive isolation circuitry connected with the first microcontroller unit and the second microcontroller unit provides a high voltage isolation link between the first and the second microcontroller units. The capacitive isolation circuitry distributing a first portion of a high voltage isolation signal across a first group of capacitors associated with the first microcontroller unit and distributes a second portion of the high voltage isolation signal across a second group of capacitors associated with the second microcontroller unit. The capacitive isolation circuitry further transmits data from the parallel data stream between the first microcontroller and the second microcontroller in a serial data stream in accordance with the second clock frequency.12-25-2008
20090175323Methods and Devices for Wireless Chip-to-Chip Communications - Wireless chip-to-chip communications are methods and devices are disclosed. In an example, a wireless chip-to-chip communication device includes a plurality of chips, each of the plurality of chips having at least one antenna and formed on a multi-layered structure. The multi-layered structure includes first and second absorption layers. The first and second absorption layers are configured to enclose a propagation medium having a given dielectric constant. The plurality of chips are configured to wirelessly communicate with each other via the respective antennas in accordance with a given wireless communication protocol via a direct propagation path within the propagation medium.07-09-2009
20120039372Communication Between Modems in XPIC Configuration For Wireless Applications - A radio communication network which comprises a plurality of radio links for communicating radio signals with orthogonal polarization. Each radio link comprises a vertical polarization communication device (02-16-2012
20100128765Communications System and Method for the Adaptation of Transmission Parameters on the Basis of Reliability Information of Reconstructed Data - A communications system provides a first communications device, which is connected via a bidirectional transmission channel to a second communications device, wherein the communications devices each comprise a data reconstruction unit. Each communications device comprises a control unit, which is provided for a configuration of various transmission parameters such as modulation type and/or code rate and/or transmitter power and/or size of data packets dependent upon a reliability value evaluated within the control unit. The reliability value indicates a probability for a reliability or a quality of a data reconstruction, which reconstructs transmitted data from received signals within the data reconstruction unit.05-27-2010
20110064125TRANSMITTING/RECEIVING SYSTEM - A transmitting/receiving system including a transmitter/receiver and a retransmitter. The transmitter/receiver includes an antenna, a multiplexer, a mixer, a receiver, a transmitter, an IF processor, a DSP and a control module. The retransmitter includes an antenna, a transceiver and a controller. The receiver receives a main input radio-frequency signal. The transmitter transmits a main output radio-frequency signal. The transceiver receives the main input radio-frequency signal, transforms the main input radio-frequency signal into an intermediate radio-frequency signal, and transmits the intermediate radio-frequency signal. The IF processor receives the intermediate radio-frequency signal and processes the intermediate radio-frequency signal. The DSP processes the main input radio-frequency signal with the processed intermediate radio-frequency signal. The control module forms and transmits a control signal to the controller, which sets a frequency and a power level of the intermediate radio-frequency signal.03-17-2011
20110158300REMOTE TERMINAL, PROCESSOR-READABLE MEDIUM, AND METHOD FOR REMOTE ADJUSTMENT OF A USER PROFILE - A method includes receiving at least one performance parameters from a customer premises equipment at a controller. The method includes storing the at least one performance parameter for the customer premises equipment in a line table. The method includes determining a difference between each performance parameter and a corresponding performance standard for each performance parameter entry in the line table. The method includes adjusting a customer profile for the customer premises equipment when at least one difference indicates a violation. The method also includes removing from the line table each performance parameter entry associated with the at least one difference that indicates the violation.06-30-2011
20110090942SYSTEM AND METHODS FOR WIRELESS NETWORKING - A networking system for wirelessly transmitting a signal between one or more computers. The system includes, in a first transceiver pair, an upper transceiver configured to be coupled to be suspended overhead and lower transceiver configured as a ground unit. The upper and lower transceivers include an RF transmitter configured to transmit a first signal as a focused beam toward the opposing transceiver and an RF receiver configured to receive the first beam signal from the opposing transceiver. The system also includes, in a second transceiver pair, an RF transmitter configured to transmit a second signal as a focused beam toward the opposing transceiver and an RF receiver configured to receive the first beam signal from the opposing transceiver. The first and second beam signals are transmitted at a 60 GHz, allowing the first and second beam signals to be transmitted at a beam spread of less than 5 degrees.04-21-2011
20120002708DEVICE METHOD AND SYSTEM FOR TRANSMISSION AND RECEPTION OF DATA - Disclosed is a method, circuit and system for transmission and reception of data, including video data. There is provided a multi-constellation data to symbol mapping logic, circuit or module integral with or otherwise functionally associated with a transmitter and a corresponding multi-constellation symbol to data de-mapping logic, circuit or module integral or otherwise functionally associated with a receiver. The multi-constellation mapping and corresponding de-mapping logic, circuit or module may be characterized by a non-uniform distribution of symbols, and optionally may be characterized by a set of symbol clusters, wherein symbol clusters are of the same or varying sizes and may be spaced either at uniform or non-uniform distances from one another.01-05-2012
20120057623APPARATUS AND METHOD FOR POWER CONTROL IN BROADBAND WIRELESS ACCESS SYSTEM - Uplink power control in a broadband wireless access system is provided. A Base Station (BS) includes a controller, a first generator, a second generator, and a modulator/demodulator (modem). The controller determines to apply one of a first power control which is slot-periodic and a second power control which is frame-periodic. The first generator generates a first power control command at a slot period using a channel quality premising a rake receiver according to the first power control. The second generator generates a second power control command at a frame period using a channel quality premising an equalizer according to the second power control, and generates a third power control command according to a predefined pattern at a slot not being able to use the channel quality. The modem transmits at least one of the first, second, and third power control commands.03-08-2012
20110103440Physical Layer Device Having a SERDES Pass Through Mode - A physical layer device (PLD), comprising: a first serializer-deserializer (SERDES) device having a first parallel port; a second SERDES device having a second parallel port; a third SERDES device having a third parallel port; and a path selector being selectively configurable to provide either (i) a first signal path between the first and second parallel ports, or (ii) a second signal path between the first and third parallel ports.05-05-2011
20110103439APPARATUS AND METHODS FOR IMPROVED HIGH-SPEED COMMUNICATION SYSTEMS - Apparatus and methods for improved high-speed communication by exchanging low-speed information regarding the high-speed exchanges over the same communication medium. In one exemplary embodiment, a communication device includes a high-speed transceiver adapted to exchange high-speed data with another device via a communication medium using high-frequency signals. The device also includes a low-speed component adapted to exchange low-speed information over the same communication medium as low-frequency signals. The low-frequency signals may be applied as common mode signals to a differential communication path so as to not interfere with the high-speed data exchanges. In another embodiment, a high-pass filter may be included in the device to remove the low-frequency signals before the high-speed data is applied to the high-speed transceiver. Responsive to receipt of the low-speed information, a device may adjust parameters of the transceiver to improve the high-speed data exchanges.05-05-2011
20100290509System and Method for Efficient Half Duplex Transceiver Operation in a Packet-Based Wireless Communication System - Systems and methods for providing half duplex user equipment in a packet based radio frequency signaling communication system. User equipment with half duplex receiver and half duplex transmitter on IC providing a transceiver capability performs a cycle of receiving downlink messages for a predetermined number of sub frames, shifting to a transmit mode, transmitting uplink messages for the predetermined number of sub frames, shifting to a receive mode, and repeating the cycle of half duplex sub frames. A discontinuous reception function performs a DRX protocol wherein power is reduced to the transceiver for a period of time. A determination is made at the end of the discontinuous reception period to see if the half duplex cycle is at an uplink sub frame; if so, the end of the discontinuous reception is shifted by the user equipment to a downlink sub frame by adding a delay.11-18-2010
20100290508Implementing Single Line Asynchronous Dual Watchdog Communication for ESD Immunity - A method and dual watchdog communication circuit for implementing single line asynchronous dual watchdog communication for electrostatic discharge (ESD) immunity, and a design structure on which the subject circuit resides are provided. The dual watchdog communication circuit includes a source transceiver module and a sink transceiver module connected together by a single line, each of the source transceiver module and the sink transceiver module uses a coded pulse for the single line asynchronous dual watchdog communication.11-18-2010
20100246647ACTIVE BIDIRECTIONAL SPLITTER FOR SINGLE ENDED MEDIA - An active bidirectional splitter (09-30-2010
20110182333RF TRANSCEIVER DEVICE WITH RF BUS - A radio frequency (RF) transceiver device includes a processing module, a memory, and an RF section, each including an RF bus transceiver. An RF bus facilitates communication between the processing module, the memory and the RF section via the RF bus transceivers. An RF bus controller controls access to the RF bus.07-28-2011
20120134395Power Line Communications (PLC) Across Different Voltage Domains Using Multiple Frequency Subbands - Systems and methods for implementing power line communications (PLC) across different voltage domains using multiple frequency subbands are described. From an end node's perspective (e.g., a PLC device), a method may include scanning a plurality of downlink subbands usable by a base node (e.g., a PLC router, etc.) to communicate with one or more PLC devices (e.g., other end nodes) from a medium voltage (MV) to a low voltage (LV) power line, and transmitting association request(s) to the base node that select and/or allow the base node to select one or more downlink subbands for use in subsequent communications. From the base node's perspective, the method may include selecting one or more of a plurality of uplink subbands for use in subsequent communications based on the received association request(s). In various implementations, the selection of downlink and/or uplink subbands may be based on signal-to-noise ratio (SNR) values and/or congestion indicators.05-31-2012
20120163433Method for Reducing Interference in Multi-Cell Multi-User Wireless Networks - This invention provides a method for exploiting precoder optimization gains and multi-user diversity gains with interference alignment in general MIMO wireless networks including multiple users. Specifically, two embodiments exploit either a gradient-based search or iteratively orthogonalizing inference. The method can achieve near-optimal performance at a low complexity. Furthermore, a scheduling criterion is provided for wireless networks comprised of a large number of mobile stations in each cell. The criterion can be done independently in each cell to significantly reduce information exchanged between base stations in different cells compared to the methods that perform joint scheduling over all cells. The two embodiments can be utilized in a spectrally efficient communications network equipped with relaying nodes.06-28-2012
20120213257Baseband Recovery in Wireless Networks, Base Transceiver Stations, and Wireless Networking Devices - Baseband recovery in wireless networks, base transceiver stations, and wireless networking devices may be implemented to minimize the number of timing symbols while at the same time enabling wireless devices to use a relatively low per-symbol sampling rate, so that minimal processing is required to implement the timing recovery. In one embodiment, a relatively low number of samples is taken per expected symbol interval during the training sequence. A subset of the samples is selected and processed to determine error signals for each of the samples. The error signals are multiplied by the expected symbol and summed to form an error signal. The error signal is used to adjust the set of samples that will be used and processed in connection with subsequent symbols. The error signal is also used to interpolate between available samples to infinitesimally approach the point of maximum eye opening.08-23-2012
20100272163Wireless communication subsystem with a digital interface - Systems and methods are disclosed which provide wireless communication systems implementing subsystems adapted for flexible deployment configurations and to resist the introduction of interference. Preferred embodiments of the present invention provide a wireless communication system configuration in which an ODU subsystem is coupled to an IDU subsystem using a fiber optic link. According to a preferred embodiment of the present invention, an ODU subsystem is adapted to provide conversion between digital and analog to thereby facilitate the use of a digital link between the ODU subsystem and a corresponding IDU subsystem. Embodiments of the present invention utilize a plurality of ODU subsystems configured according to the present invention to provide wireless communication coverage of a service area, such as to provide a wireless application termination system (WATS) hub for use in providing wireless communication links with respect to a plurality of subscriber units.10-28-2010
20100272162Synchronous serial programmable interface - A synchronous serial programmable interface that programmably defines a plurality of frame definitions in which each frame definition provides signal timing for a corresponding frame used in serial data transfer. A sequencer module is used to provide a plurality of instructions, in which each instruction, when executed, obtains a frame definition from the plurality of frame definitions. Then a task scheduler selects a scheduled task from a plurality of tasks that are used in transferring data. The particular task selects one or more instructions from the plurality of instructions and obtains one or more frame definitions specified by the instruction or instructions to establish one or more frames that are used in transferring the data.10-28-2010
20120082195Load Estimation in Interference Whitening Systems - A method for noise rise estimation in a wireless communication system comprises measuring (04-05-2012
20080298443Method for efficient wireless transmission and reception of audio digital signals - The present invention relates to a method of wirelessly transmitting and receiving audio digital signals of the type having a first plurality of blocks with each block having a second plurality of frames, with each frame having a third plurality of subframes, with each subframe having a preamble and a binary data. The method efficiently transmits and recomposes the digital audio signals by searching for the preamble associated with a subframe, which is the first subframe of a frame, with the frame being the first frame of a block, and then transmitting wirelessly only the binary data of each subframe, in each frame, in each block thereafter. In a preferred embodiment, the protocol for the transmission of data calls for each data packet that is transmitted to consist of 512 bytes. The data packet transmitted by the transmitter must be acknowledged by the transmission of an acknowledgement (ACK) packet from the receiver. In the event, the data packet is not received and/or the ACK packet is not received, and transmission must recommence, synchronization is accomplished by the retransmission of data packet immediately after the preamble of the first subframe of the first frame of a block.12-04-2008
20120269241DEVICE AND METHOD OF MAKING A DEVICE - An Ethernet device able to connect to an Ethernet socket. The Ethernet device comprises a common carrier carrying functional circuitry for at least one function, Ethernet controller circuitry, and contacts for connecting to the Ethernet socket.10-25-2012
20090086797Data transmission system - A data transmission system, particularly for use in seismic data acquisition, transmits digital signals from remote units to a central control unit via a backbone network and root nodes. Data is transmitted wirelessly between the remote units and the root nodes by means of each remote unit having two transceivers, one of which acts as a client and one as an access point. The remote units transmit metrics which enable the adaptive formation of a mesh-like network.04-02-2009
20100254444Methods of Implementing Low-Power Mode for DSL Modems - According to an embodiment, a DSL transceiver is set in a low power mode and moved out of the low power mode responsive to the DSL transceiver receiving data. Data is transmitted only on a first group of sub-carriers when moving the DSL transceiver out of the low power mode, the first group of sub-carriers being a subset of the sub-carriers available to the DSL transceiver for transmission.10-07-2010
20100232485SINGLE CONDUCTOR BIDIRECTIONAL COMMUNICATION LINK - A driver is coupled to a single conductor wire that may be electromagnetically shielded to drive serial signals on the wire, and a receiver is coupled to the wire and to the driver to receive serial signals from the wire at the same time.09-16-2010
20090316765METHOD AND APPARATUS FOR REDUCING THE PROCESSING RATE OF A CHIP-LEVEL EQUALIZATION RECEIVER - A method and apparatus for reducing the processing rate when performing chip-level equalization (CLE) in a code division multiple access (CDMA) receiver which includes an equalizer filter. Signals received by at least one antenna of the receiver are sampled at M times the chip rate. Each sample stream is split into M sample data streams at the chip rate. Multipath combining is preferably performed on each split sample data stream. The sample data streams are then combined into one combined sample data stream at the chip rate. The equalizer filter performs equalization on the combined sample stream at the chip rate. Filter coefficients are adjusted by adding a correction term to the filter coefficients utilized by the equalizer filter for a previous iteration.12-24-2009
20080232449Efficient uplink feedback in a wireless communication system - A method for transmitting control information by transmitting a reference signal from a first transceiver to a second transceiver, in response to the reception of the reference signal, determining at the second transceiver a plurality of control channel elements based upon the received reference signal, jointly encoding the plurality of control channel elements at the second transceiver to generate a control signal, and transmitting the control signal from the second transceiver to the first transceiver.09-25-2008
20110274147SYSTEMS AND METHODS FOR RETRANSMISSION WITH ON-LINE RECONFIGURATION - Disclosed are various embodiments for performing retransmission with on-line reconfiguration. A data stream is encoded into first frames according to a framing configuration. A request is obtained for an on-line reconfiguration of the framing configuration from a receiver. The encoding of the data stream into the first frames is suspended in response to the request. One or more first frames are retransmitted to the receiver during a retransmission time period that commences relative to the suspending of the encoding of the data stream into the first frames. The encoding of the data stream into second frames is resumed according to a modified framing configuration consistent with the on-line reconfiguration. The second frames are transmitted to the receiver upon expiration of the retransmission time period.11-10-2011
20130136163Communication Pathway Supporting an Advanced Split Microwave Backhaul Architecture - An advanced split ODU architecture is provided. The advanced architecture includes an indoor communication unit including a digital modem assembly configured to modulate and demodulate digital data, and also includes a digital interface module configured to transmit and/or receive the digital data, over a digital communication pathway, between the indoor communication unit and an external outdoor communication unit. The advanced architecture further includes an outdoor communication unit having a digital interface module configured to transmit and/or receive the digital data, over the digital communication pathway, between the outdoor communication unit and an external indoor communication unit, and also includes a digital to analog converter configured to convert the digital data to analog data and an analog to digital converter configured to convert the analog data to the digital data, and further includes an RF module configured to convert the analog data between a baseband and a radio frequency.05-30-2013
20100284451MAC AND PHY INTERFACE ARRANGEMENT - According to an example embodiment of the present invention, a method is implemented for transmitting data between a Media Access Control Layer (MAC) (11-11-2010
20100316100Method and Device to Transmit a Busy Medium Signal to Another Device - The present invention concerns a device comprising a medium access control module for performing functions of a medium access control sublayer, noted MAC module, the device comprising a MAC interface module connected to the MAC module, the MAC interface module being adapted to connect in a first mode with a connector to a second MAC interface module or in a second mode with a connector to a physical interface module, the second MAC interface module being located in a second device comprising a MAC module connected to the second MAC interface module. In the first mode, the device comprises means for communicating in a half-duplex manner with the second device, and means for sending a medium busy signal to the second device.12-16-2010
20130156077Transceiver Port Apparatus and Method - Various embodiments relate to an apparatus that converts between CFP signals and electrical CXP signals. Circuitry compensates for attenuation of a CXP interconnect connected to a CXP transceiver port, and converts between (i) electrical CXP signals of the CXP transceiver port (the electrical CXP signals compliant with the CXP specification), and (ii) CFP signals of the CFP transceiver port (the CFP signals compliant with the CFP specification).06-20-2013
20120281742Beamforming precoding matrix using non-uniform angles quantization - Beamforming precoding matrix using non-uniform angles quantization. Adaptively generated feedback information is provided between communication devices that communicate using more than one communication path, link, connection, etc. With respect to feeding back different types of information having different respective characteristics (e.g., different respective probability density functions), different and respective quantization may be employed for the different types of information. For example, uniform, Gaussian, or per bit loop optimized quantization may be individually selected and employed for each of the different types of feedback information used in a wired communication system (e.g., one which is implemented or compliant in accordance with PLC/HP (Powerline/HomePlug), and/or at least one version of the IEEE 1901-2010—IEEE Standard for Broadband over Power Line Networks: Medium Access Control and Physical Layer Specifications), signaling may be effectuated between communication devices using more than one communication pathway (e.g., more than one communication link between respective communication devices).11-08-2012
20130208774Systems Methods Circuits and Apparatus for Calibrating Wireless Communication Systems - Disclosed are wireless communication systems and methods for calibrating same. The communication systems may include first wireless transceivers having: (a) a modem, and (b) one or more Radio Frequency (RF) chain pairs. There may also be included a sounding circuit block. A calibrated switchable bridging block (CSBB) may switchably couple signals between the first transceivers and the sounding circuit block. Calibration control logic may regulate signal flow through said CSBB during a sounding sequence of said first wireless transceiver and may apply compensation coefficients to RF compensation circuits functionally associated with said the wireless transceiver RF chain pairs.08-15-2013

Patent applications in class Transmission interface between two stations or terminals