Patents for H04L 27 - Modulated-carrier systems (89,721) |
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01/08/2008 | US7317766 Apparatus and method for demodulating signal |
01/08/2008 | US7317765 Signal observation system |
01/08/2008 | US7317763 Pulse generator, pulse generating method, communicating apparatus, and communicating method |
01/08/2008 | US7317761 Multi-carrier communication system and receiver thereof |
01/08/2008 | US7317760 System and method for finger and path management in receivers |
01/08/2008 | US7317757 Transmit amplitude independent adaptive equalizer |
01/08/2008 | US7317750 Orthogonal superposition coding for direct-sequence communications |
01/08/2008 | US7317747 Transmitter and receiver |
01/08/2008 | US7317680 Channel mapping for OFDM |
01/08/2008 | US7317408 Digital modulation apparatus and digital modulation method |
01/08/2008 | CA2445332C Activation of multiple xdsl modems with implicit channel probe |
01/08/2008 | CA2361032C Clock reproduction circuit |
01/08/2008 | CA2351492C Demodulator |
01/03/2008 | WO2008003087A2 Method and apparatus for selection mechanism between ofdm-mimo and lfdm-simo |
01/03/2008 | WO2008002446A2 Apparatus and methods for implementing hierarchical modulation and demodulation for geran evolution |
01/03/2008 | WO2008002060A1 Method for estimating transmission delay and receiver using the same |
01/03/2008 | WO2008001977A1 Transmission method and apparatus for allocating subchannel and forming stationary beam to maximize transmission efficiency in orthogonal frequency division multiplexing /multiple access based wireless communication system |
01/03/2008 | WO2008001456A1 Multi-value modulation signal reception method and multi-value modulation signal reception device |
01/03/2008 | WO2008001446A1 Transmission device, reception device, transmission method, and reception method |
01/03/2008 | WO2008001293A2 Design of preamble structure for block transmission signals and receiver therefor |
01/03/2008 | WO2008001269A2 Phase-to- frequency conversion for polar transmitters |
01/03/2008 | WO2008000880A1 Method and system for broadband digital transmission via high and medium voltage networks |
01/03/2008 | WO2008000401A1 Optical receiver for receiving a signal m-valued star-shaped quadrature amplitude modulation with differential phase coding and application of same |
01/03/2008 | WO2008000180A1 Method and system for harmonizing multimedia broadcast/multicast service resource in neighbor cells |
01/03/2008 | WO2008000129A1 A method and device for providing test routes and a routing test system |
01/03/2008 | WO2007126793A3 Random access structure for wireless networks |
01/03/2008 | WO2007126385A3 I/q imbalance compensation using scheduling |
01/03/2008 | WO2007114963A3 Methods and apparatus for noise estimation in a communication system |
01/03/2008 | WO2007095551A3 Fec streaming with aggregation of concurrent streams for fec computation |
01/03/2008 | WO2007061799A3 Phase lock loop rf modulator system |
01/03/2008 | WO2005036919A3 Optimizing performance of a digital subscriber line |
01/03/2008 | US20080002798 Method and System for Controlling a Receiver In a Digital Communication System |
01/03/2008 | US20080002792 Early Energy Measurement |
01/03/2008 | US20080002789 System and method for anticipatory receiver switching based on signal quality estimation |
01/03/2008 | US20080002788 Local oscillator incorporating phase command exception handling utilizing a quadrature switch |
01/03/2008 | US20080002784 Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency |
01/03/2008 | US20080002783 Method and apparatus for transmitting and receiving data in a multi-channel digital broadcasting system |
01/03/2008 | US20080002782 System and method of wireless communication of uncompressed video having a fast fourier transform-based channel interleaver |
01/03/2008 | US20080002781 Dynamic mimo resource allocation during a single communication |
01/03/2008 | US20080002780 Apparatus for transmitting and receiving data to provide high-speed data communication and method thereof |
01/03/2008 | US20080002655 Method and system for maximizing data throughput rate in a power line communications system by modifying payload symbol length |
01/03/2008 | US20080002568 Adaptive time diversity and spatial diversity for OFDM |
01/03/2008 | US20080001779 Frequency Shift Compensation, Such as for Use In a Wireless Utility Meter Reading Environment |
01/03/2008 | US20080001731 Multi-frequency alarm system receiver with interference detection |
01/03/2008 | DE102006030915A1 Optischer Empfänger für den Empfang von M-wertiger sternförmiger Quadratur-Amplitudenmodulation mit differenzieller Phasenkodierung und Anwendung davon Optical receiver for the reception of M-valued stellate quadrature amplitude modulation with differential phase coding and application thereof |
01/03/2008 | CA2656184A1 Improved packet efficiency for block transmission signals methods and systems |
01/03/2008 | CA2653694A1 Method and apparatus for selection mechanism between ofdm-mimo and lfdm-simo |
01/02/2008 | EP1873989A1 Radio transmission apparatus and method of inserting guard interval |
01/02/2008 | EP1873926A2 Carrier state judging device and transmitting device |
01/02/2008 | EP1872551A1 Time domain windowing and inter-carrier interference cancellation |
01/02/2008 | EP1872550A1 Trend influenced symbol time tracking for an ofdm communication system |
01/02/2008 | EP1872549A1 Symbol time tracking for an ofdm communication system |
01/02/2008 | EP1872548A1 Method, apparatus, and system for transmitting and receiving data in a digital broadcasting system using a single frequency network |
01/02/2008 | EP1872547A1 Detection of signal modulation format type |
01/02/2008 | EP1872546A1 Method of determining the location of the fft window and the delay spread for the platinum broadcast channel estimator |
01/02/2008 | EP1872501A2 Method to minimize degradation a d-mpsk hierarchical modulation system |
01/02/2008 | EP1872483A2 System and method for communicating data using constant amplitude equalized waveform |
01/02/2008 | EP1872480A2 Hybrid orthogonal frequency division multiple access system and method |
01/02/2008 | EP1745627A4 Transmitting and receiving apparatuses for reducing a peak-to-average power ratio and an adaptive peak-to-average power ratio controlling method thereof |
01/02/2008 | EP1706975B1 Peak reduction in ofdm using clipping and modified constellations |
01/02/2008 | EP1676407A4 System and method for reducing peak-to-average power ratio for multi-carrier communication systems |
01/02/2008 | EP1430676B1 Arrangement for phase modulation control in rf signal generation |
01/02/2008 | EP1413108B1 Method for avoiding interference radiation of am transmitters used in digital transmission |
01/02/2008 | EP1338094B1 System and method for embedding a sub-channel in a block coded data stream |
01/02/2008 | EP0940957B1 AFC circuit, carrier reproducing circuit, and receiver |
01/02/2008 | CN101099383A Display device with speaker grill |
01/02/2008 | CN101099364A Quadrature mismatch compensation |
01/02/2008 | CN101099363A System and method for providing services using a single frequency in a wireless communication system |
01/02/2008 | CN101099362A Method and apparatus for differentially orthogonal modulation by using repetition time period of chirp signal |
01/02/2008 | CN101099361A Method of obtaining time synchronization in OFDM mobile communication system |
01/02/2008 | CN101099297A Periodic calibration for communication channels by drift tracking |
01/02/2008 | CN101099296A DC offset compensation method and device |
01/02/2008 | CN101098555A Multi-mode self-adaptive direct-sequence communications system and method therefor |
01/02/2008 | CN101098418A Equalizer structure and method for error reverse rotation in digital television receiver |
01/02/2008 | CN101098328A Base band and RF system synchronization and time delay compensation process |
01/02/2008 | CN101098327A Radio transmission apparatus and method of inserting guard interval |
01/02/2008 | CN101098326A Self-adaption resource allocation method in orthogonal frequency division multiplexing multi-address access system |
01/02/2008 | CN101098323A GMC system based transmission device and corresponding frequency domain equalization method |
01/02/2008 | CN101098294A Carrier distribution method and apparatus for high speed downlink packet access technology |
01/02/2008 | CN101098277A Ultra-wideband wireless transmission multifunctional system |
01/02/2008 | CN101098250A State synchronizing apparatus and method |
01/02/2008 | CN101098249A State synchronous system and method |
01/02/2008 | CN101098222A Wireless communication system, wireless communication apparatus, and method of exchanging cryptography key between wireless communication apparatuses |
01/02/2008 | CN101098215A Method and apparatus for computing soft decision input metrics to a turbo decoder |
01/02/2008 | CN101098181A Method for controlling time-delay stability of time service type satellite receiver |
01/02/2008 | CN101098179A Method for forming broadband frequency domain digital beam |
01/02/2008 | CN101098177A Data transmission method for wireless communication system |
01/02/2008 | CN101098151A Method for receiving broadcasting signal |
01/02/2008 | CN101098142A Frequency synthesizer of multi-sideband OFDM ultra-broadband system radio frequency transceiver |
01/02/2008 | CN100359960C Method for realizing infomration channel estimation in orthogonal frequency division multiplexing system |
01/02/2008 | CN100359959C Method for implementing channel estimation in OFDMA system |
01/02/2008 | CN100359896C Transmission apparatus and transmission method |
01/02/2008 | CN100359895C Method for implementing full digital wireless communication system using fast Fourier transform |
01/02/2008 | CN100359894C Receiving apparatus and integrated circuit for receiving |
01/02/2008 | CN100359843C Symbol timing search algorithm |
01/02/2008 | CN100359833C Method and arrangement for providing optimal bit protection against transmission errors |
01/02/2008 | CN100359816C Ultra-wideband signal receiver using frequency sub-bands |
01/02/2008 | CN100359815C Data message bit synchronization and local time correction methods and architectures |
01/02/2008 | CN100359810C Radio receiver and radio signal processing method |
01/01/2008 | USRE39983 Carrier injecting waveform-based modulation scheme for reducing satellite transponder power requirements and earth terminal antenna size |