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Multiplex communications

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Class / Patent application numberDescriptionNumber of patent applications / Date published
370310000 COMMUNICATION OVER FREE SPACE 19569
370351000 PATHFINDING OR ROUTING 7006
370241000 DIAGNOSTIC TESTING (OTHER THAN SYNCHRONIZATION) 5841
370229000 DATA FLOW CONGESTION PREVENTION OR CONTROL 2673
370464000 COMMUNICATION TECHNIQUES FOR INFORMATION CARRIED IN PLURAL CHANNELS 1814
370254000 NETWORK CONFIGURATION DETERMINATION 1795
370216000 FAULT RECOVERY 1488
370276000 DUPLEX 1057
370203000 GENERALIZED ORTHOGONAL OR SPECIAL MATHEMATICAL TECHNIQUES 518
370431000 CHANNEL ASSIGNMENT TECHNIQUES 514
370259000 SPECIAL SERVICES 504
370201000 CROSSTALK SUPPRESSION 101
370297000 DIPLEX 48
370273000 QUADRUPLEX 4
20130016632Methods for Coordinated Signal Reception Across Integrated Circuit Boundaries - A wireless electronic device having first and second baseband processors is provided. In one suitable arrangement, radio-frequency power splitters and adjustable low noise amplifiers may be form in the receive paths. The use of power splitters allow signals associated with the first and second baseband processors to be received in parallel. In another suitable arrangement, radio-frequency switches are used in place of the power splitters. The states of the switches may be controlled using at least one of the first and second baseband processors. The use of switches instead of power splitters requires that wake periods associated with the first baseband processor and wake periods associated with the second baseband processor are non-overlapping. To ensure minimal wake period collision, a wake period associated with the second baseband processor may be positioned at a midpoint between two successive wake periods associated with the first baseband processor.01-17-2013
20080232278Method and Apparatus for Communicating Downlink and Uplink Sub-Frames in a Half Duplex Communication System - A method communicating downlink and uplink sub-frames between a base and at least one half duplex user equipment. For a scheduled synchronization time, beginning of reception of an effective part of the uplink sub-frame is separated from end of transmission of an effective part of the first downlink sub-frame by a duration of the difference between a single idle period and an incremental timing advance value. The single idle period, having a duration greater than or equal to summation of downlink/uplink and uplink/downlink required minimum idle durations, is reserved in the end of the first downlink sub-frame or the beginning of the uplink sub-frame, or both. The incremental timing advance value is greater than or equal to the uplink/downlink required minimum idle duration and lower than or equal to the difference between the duration of the single idle period and the downlink/uplink required minimum idle duration.09-25-2008
20080240000SYSTEM AND METHOD FOR RADIO OPERATION IN UMTS BANDS I AND IV UTILIZING A SINGLE RECEIVING PORT - A portable electronic device comprises a multi-band wireless transceiver for communication with a remote device. The portable electronic device comprises a transceiver: i) generating a first band modulated carrier at a first transmitter port; ii) generating a second band modulated carrier at a second transmitter port; and iii) including a low noise amplifier receiving port. A front-end circuit couples the transceiver to an antenna. The front-end circuit includes a first band modulated carrier transmission signal path from the first transmitter port to the antenna comprising: i) a coupling of a first band modulated carrier from the first transmitter port of the transceiver to a low pass port of a diplexer; ii) the diplexer comprising a low pass filter coupling the first band modulated carrier from the low pass port of the diplexer to a common port of the diplexer; and iii) a coupling of the first band modulated carrier from the common port of the diplexer to the antenna. A second band modulated carrier transmission signal path from the second transmitter port to the antenna comprises: i) a coupling of the second band modulated carrier from the second transmitter port of the transceiver to a transmit port of a duplexer; ii) the duplexer comprising a low band pass filter coupling the second band modulated carrier from the transmit port of the duplexer to a common port of the duplexer; iii) a coupling of the second band modulated carrier from the common port of the duplexer to a high pass port of the diplexer; iv) the diplexer comprising a high pass filter coupling the second band modulated carrier from the high pass port of the diplexer to the common port of the diplexer; and v) a coupling of the second band modulated carrier from the common port of the diplexer to the antenna. A modulated carrier received signal path from the antenna to the receiving port comprises: i) a coupling of a modulated carrier from the antenna to the common port of the diplexer; ii) the high pass filter of the diplexer coupling the modulated carrier from the common port to the high pass port of the diplexer; iii) a coupling of the modulated carrier from the high pass port of the diplexer to the common port of the duplexer; iv) the duplexer comprising a high band pass filter coupling the modulated carrier from the common port of the duplexer to a receive port of the duplexer while attenuating the second band modulated carrier; and v) a coupling for the modulated carrier from the receive port of the duplexer to the receiving port of the transceiver.10-02-2008
20130163482MOBILE COMMUNICATION TERMINAL AND METHOD FOR SIMULTANEOUS COMMUNICATION USING A PLURALITY OF FREQUENCIES - In order to enable simultaneous communication using a plurality of frequencies, provided is a mobile communication terminal including: a first combining circuit 06-27-2013
370212000 PULSE WIDTH (PULSE DURATION) MODULATION 3
20090052315Method for the Transmission of Data Using Self-Diagnostic Pulse Width Modulation - In a method for transmitting data between a master control unit and a slave control unit, the master control unit (02-26-2009
20120026863LINK THROUGHPUT ENHANCER - A communication method comprises communicating information on a standardized link compliant with a published standard and communicating information on a private link capable of operation at a throughput higher than maximum throughput of the published standard. The method further comprises monitoring private link performance and increasing information throughput on the private link above the maximum standard throughput by an amount determined by the monitored private link performance.02-02-2012
20120230177CONGESTION ABATEMENT IN A NETWORK INTERCONNECT - A method and system for detecting congestion in a network of nodes, abating the network congestion, and identifying the cause of the network congestion is provided. A congestion detection system may comprise a detection system, an abatement system, and a causation system. The detection system monitors the performance of network components such as the network interface controllers and tiles of routers to determine whether the network is congested such that a delay in delivering packets becomes unacceptable. Upon detecting that the network is congested, an abatement system abates the congestion by limiting the rate at which packets are injected into the network from the nodes. Upon detecting that the network is congested, a causation system may identify the job that is executing on a node that is the cause of the network congestion.09-13-2012
370200000 PHANTOM 2
20110051593PHANTOM USE IN DSL SYSTEM - Superimposing phantom-mode signals reinforces existing differentially driven DSL downstream signals in a vectored binder of DSLs or reinforces upstream vectored signals in a binder of differentially excited twisted pairs, thus expanding the extra transmission modes of the previous GDSL multi-wire two-sided-excitation invention to the case where coordination can only occur on one-side of the binder. Each pair is treated as a common-mode antenna with respect to earth ground, with some pairs selectively excited at the transformer center tap at the transmit end with respect to a common (earth or chassis) ground reference. Corresponding receivers on other non-excited pairs sense the signals between their center taps and a ground at the opposite ends of the lines to the exciting transmitters. A dual use with hybrid circuits allows the receiving circuit to also have an upstream transmitter and an upstream-sensing receiver on the center tap of the opposite side of an adjacent wire.03-03-2011
20120188865Intelligent Patching Systems and Methods Using Phantom Mode Control Signals and Related Communications Connectors - Communications connectors are provided that include a plurality of input ports, a plurality of output ports and a plurality of conductive paths. Each of the conductive paths connects a respective one of the input ports to a respective one of the output ports. The conductive paths are arranged as a plurality of differential pairs of conductive paths that are each configured to carry a differential signal. These connectors further include a control signal input circuit that is configured to capacitively couple a phantom mode control signal onto at least a first and a second of the differential pairs of conductive paths.07-26-2012
370215000 PHASE MODULATION 2
20090147669CONTINUOUS PHASE MODULATION ENCODER FOR WIRELESS NETWORKS - Various example embodiments are disclosed herein. According to an example embodiment, an apparatus for use in a wireless transmitter may include a phase encoder adapted to generate a continuous time signal based on a symbol and a corresponding modulation index for a current symbol interval and one or more previous symbol intervals and based on a continuous phase modulation (CPM) phase response function, a filter and symbol-rate sampler adapted to filter and then symbol rate sample the continuous time signal to generate a symbol-rate statistic that is representative of the continuous time signal for each of the symbol intervals; a mapping circuit adapted to map each of the plurality of symbol-rate statistics to a corresponding constant modulus CPM symbol, and a transmitter circuit adapted to transmit a signal based on the constant modulus CPM symbols.06-11-2009
20090279422Single sideband and quadrature multiplexed continuous phase modulation - A class of bandwidth reduction techniques are used develop a broad class of modulation types collectively called SSB-FM. These signals can be used to construct communication systems that provide bandwidth-normalized performance gains of 10 dB or more when compared to popular prior art modulation methods. An aspect of the invention involves mapping trellis paths in a complex signal space onto corresponding real-valued trellis signals with desirable spectral properties. The invention can be used map continuous phase modulated (CPM) signals onto simpler amplitude-modulated trellis signals having double the channel capacity of prior art CPM signals. Multi-amplitude signaling and frequency division multiplexing may also be incorporated to further accommodate more information per symbol.11-12-2009
370307000 TRASMULTIPLEXERS 1
20090016244SYSTEM AND METHOD FOR NETWORK LAYER PROTOCOL ROUTING IN A PEER MODEL INTEGRATED OPTICAL NETWORK - Embodiments of the invention are generally directed to a system and method of implementing peer model architecture in integrated optical networks. In one embodiment, heterogeneous domains of nodes share a common control plane via routing and signaling adjacencies established through a network layer control channel. For example, in one embodiment, one or more Internet Protocol (IP) compliant routers, one or more Time Domain Multiplexing (TDM) switches, and one or more Wave Division Multiplexing (WDM) optical cross connects (OXC) run a common instance of an Interior Gateway Protocol (IGP).01-15-2009
370546000 MISCELLANEOUS 1
20120082174Sense Amplifier with Selectively Powered Inverter - A sense amplifier includes a first inverter responsive to a first output of a latch. The first inverter is powered by a sense enable signal. The sense amplifier also includes a second inverter responsive to a second output of the latch. The second inverter is also powered by the sense enable signal.04-05-2012

Patent applications in class Multiplex communications

Patent applications in all subclasses Multiplex communications