Patents for H04L 27 - Modulated-carrier systems (89,721) |
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08/30/2001 | DE10009443A1 Empfänger und Verfahren zum Detektieren und Dekodieren eines DQPSK-modulierten und kanalkodierten Empfangssignals Receiver and method for detecting and decoding a DQPSK-modulated and channel-encoded receive signal |
08/30/2001 | DE10008543A1 Codierverfahren und Verwendung eines Empfangsgeräts mit einem Faltungsdecoder Coding and use of a receiver with a convolutional decoder |
08/29/2001 | EP1128626A1 Transmitter device having a modulation closed loop |
08/29/2001 | EP1128625A1 Trellis shaping for single carrier modulation systems |
08/29/2001 | EP1128624A2 Code selection for suppression of adjacent channel interference in FDM DPSK |
08/29/2001 | EP1128623A1 Method to minimise transmission power of idle ATM cells in a XDSL system with trellis coded modulation |
08/29/2001 | EP1128622A2 Compensation of sampling rate errors for xDSL, using phase balancing |
08/29/2001 | EP1128621A2 Carrier and symbol synchronisation for 8-DPSK signals |
08/29/2001 | EP1128620A1 Apparatus for detecting frequency offset |
08/29/2001 | EP1128619A2 Displaying interference-free signals |
08/29/2001 | EP1128595A2 Synchronisation of a radio reception apparatus |
08/29/2001 | EP1128590A1 Synchronisation system of a digital multiple access telecommunication system |
08/29/2001 | EP1128586A2 Digital radio communication system and method with adaptive modulation |
08/29/2001 | EP1127456A1 Ntsc interference rejection filter |
08/29/2001 | EP1127440A1 Phase interpolation receiver for angle modulated rf signals |
08/29/2001 | EP1127424A2 Dual mode qam/vsb receiver |
08/29/2001 | EP1127405A1 Frequency-stabilized receiver/transmitter circuit arrangement |
08/29/2001 | CN1310903A Differentiate and multiply based timing recovery in a quadrature demodulator |
08/29/2001 | CN1310899A Method for determining sampling phase and method for detecting synchronisation word |
08/29/2001 | CN1310898A Method and apparatus for mapping bits to an information burst |
08/29/2001 | CN1310880A Method and apparatus for modulating digital data |
08/29/2001 | CN1310558A Digital radio communication system and digital radio communication mode |
08/29/2001 | CN1310538A Method for displaying signal under interference condition between symbols |
08/29/2001 | CN1310528A Fast Fourier transformation window synchronization with decreased complexity for orthogonal frequency division multiplexing system |
08/29/2001 | CN1070327C Pi/4 shift dqpsk modulator |
08/29/2001 | CN1070325C Method and apparatus for estimating channel quality in receiver |
08/28/2001 | US6282683 Communication system with multicarrier telephony transport |
08/28/2001 | US6282500 Accumulated phase measurement using open-loop phase estimation |
08/28/2001 | US6282411 Mobile communication terminal device |
08/28/2001 | US6282292 Amplitude insensitive synchronization of nonlinear systems |
08/28/2001 | US6282273 Communication server apparatus using frequency multiplexing and method |
08/28/2001 | US6282252 Receiver for data transmission |
08/28/2001 | US6282249 Satellite receiver |
08/28/2001 | US6282248 Variable baud rate demodulator |
08/28/2001 | US6282246 Frequency modulation method and modem unit employing such method |
08/28/2001 | US6282237 Multiple transmission system wherein analog signal is transformed to base band, random-transformed and superimposed on dispersed signal points in vector signal space |
08/28/2001 | US6282236 Modem designs, and systems using the modem designs for communicating information between a number of remote locations and one or more central locations |
08/28/2001 | US6282235 Signal processing apparatus |
08/28/2001 | US6282228 Spread spectrum codes for use in communication |
08/28/2001 | US6282180 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
08/28/2001 | US6282168 Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals |
08/28/2001 | US6282167 OFDM signal organized so as to simplify reception |
08/28/2001 | US6281935 System and method for controlling a transmitter frequency |
08/28/2001 | US6281829 Multi-mode analog front-end |
08/23/2001 | WO2001061956A1 Method and apparatus for minimizing cross talk due to discrete multi-tone transmission in cable binders |
08/23/2001 | WO2001061955A1 Psk receiver with amplitude reconstruction and digital matched filter |
08/23/2001 | WO2001061952A1 Delayed decision feedback log-map equalizer |
08/23/2001 | WO2001061910A1 System for the transmission of data by means of multiple transmission channels with a protective band between each channel |
08/23/2001 | WO2001061907A2 Calibration system for a communications system |
08/23/2001 | WO2001061880A1 Method for frequency offset estimation in a direct sequence spread spectrum communications receiver |
08/23/2001 | WO2001061863A1 Isolation system with analog communication across an isolation barrier |
08/23/2001 | WO2000007301A3 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
08/23/2001 | US20010016019 Automatic gain control circuit, data communication device and automatic gain control method |
08/23/2001 | US20010016017 Quadrature modulator |
08/23/2001 | US20010016016 Power amplification using a direct-upconverting quadrature mixer topology |
08/23/2001 | US20010016015 Transmission apparatus and method of signal-point generation |
08/23/2001 | US20010016014 Communications system |
08/23/2001 | US20010016013 Feher keying (FK) modulation and transceivers including clock shaping processors |
08/23/2001 | US20010016004 Real/complex dual combination channel eqalizer |
08/23/2001 | US20010015998 Automatic power control system for a code division multiple access (CDMA) communications system |
08/23/2001 | US20010015997 Packet spread-spectrum receiver |
08/23/2001 | US20010015996 Packet spread-spectrum transmitter |
08/23/2001 | US20010015995 Radio and communication method using a transmitted intermediate frequency |
08/23/2001 | US20010015988 Signal synchronization method and receiver device for packet communication |
08/23/2001 | US20010015954 Orthogonal frequency division multiplexing receiver device |
08/23/2001 | EP1145449A3 Hardware-efficient transceiver with delta-sigma digital-to-analog converter |
08/23/2001 | DE19962341C1 Sender zum Versenden von Signalen über Funkkanäle und Verfahren zum Senden von Signalen über Funkkanäle Transmitter for sending signals through radio channels and method for transmitting signals via radio channels |
08/23/2001 | DE10005558A1 Vehicle data communications device uses dual channel communications microwave frequencies for intermediate frequency processing by conventional parts |
08/23/2001 | CA2336763A1 Code selection for suppression of adjacent channel interference in fdm dpsk |
08/22/2001 | EP1126730A2 Method for phase change detection of a signal/tone |
08/22/2001 | EP1126673A2 Frequency offset correction in a muliticarrier receiver |
08/22/2001 | EP1126647A1 Ofdm communication device |
08/22/2001 | EP1126626A2 Pattern generation circuit, multi-path detection circuit employing the same and multi-path detection method |
08/22/2001 | EP1126625A1 Method of transmission and device to carry out said method |
08/22/2001 | EP1125411A1 Method and system for adjusting spurious lines of an output frequency spectrum in a sideband frequency translating device |
08/22/2001 | EP1125409A1 Method for measuring and evaluating multi-carrier signals |
08/22/2001 | EP1125408A1 Method and apparatus for scaling modem transfer capacity in a multi-channel communications system |
08/22/2001 | EP1125407A1 Method for ask demodulation and ask demodulator |
08/22/2001 | EP1125404A1 Equalization method especially for offset modulation modes |
08/22/2001 | EP1125401A1 Internet gigabit ethernet transmitter architecture |
08/22/2001 | EP1125390A1 Method for displaying the modulation error of a multiple carrier signal |
08/22/2001 | EP1125377A1 Method for processing ofdm signals simultaneously received via a multiple antenna system |
08/22/2001 | EP1125363A1 Apparatus for performing a non-integer sampling rate change in a multichannel polyphase filter |
08/22/2001 | EP1125359A1 Method and system for down-converting an electromagnetic signal |
08/22/2001 | CN1309858A Transmitter/receiver for GMSK and offset-QAM |
08/22/2001 | CN1309841A Radio terminal device |
08/22/2001 | CN1309840A Distortion correction circuit for direct conversion receiver |
08/22/2001 | CN1309838A De-interleave circuit |
08/22/2001 | CN1309837A BS digital broadcasting receiver |
08/22/2001 | CN1309835A Single chip CMOS transmitter/receiver and VCO-mixer structure |
08/22/2001 | CN1309484A Sampling offset correction in quadrature frequency division multiplex system |
08/22/2001 | CN1309483A Local oscillator frequency correction in quadrature frequency-division multiplex system |
08/22/2001 | CN1309471A Viterbi decoder with reduced bit in branching metering computation processing |
08/22/2001 | CN1070007C Method for formatting of data for transmission |
08/21/2001 | US6279158 Dynamic bandwidth allocation |
08/21/2001 | US6279022 System and method for detecting symbol boundary in multi-carrier transmission systems |
08/21/2001 | US6278865 Receiver and method for measuring the frequency difference between a turning frequency and a transmission frequency |
08/21/2001 | US6278754 Demodulation of asynchronously sampled data by means of detection-transition sample estimation in a shared multi-carrier environment |
08/21/2001 | US6278746 Timing recovery loop circuit in a receiver of a modem |
08/21/2001 | US6278743 Non linear amplitude precorrection for HDTV transmitter |