| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 05/04/2004 | US6732281 System and method for loading data onto carriers |
| 05/04/2004 | US6731745 Frequency deviation detecting apparatus and frequency deviation detecting method |
| 05/04/2004 | US6731710 Method for rapid carrier frequency estimation in a communication system |
| 05/04/2004 | US6731703 Reception power level calculating circuit and receiver using the same |
| 05/04/2004 | US6731702 Null symbol position detecting method, null symbol position detecting apparatus, and receiver |
| 05/04/2004 | US6731698 Quadrature demodulation circuit capable for canceling offset |
| 05/04/2004 | US6731696 Multi-channel parallel/serial concatenated convolutional codes and trellis coded modulation encoder/decoder |
| 05/04/2004 | US6731695 Systems and methods for implementing receiver transparent Q-mode |
| 05/04/2004 | US6731694 Isolator eliminator for a linear transmitter |
| 05/04/2004 | US6731693 System of and method for compensating a baseband signal to reduce third order modulation distortion |
| 05/04/2004 | US6731679 Modulator/demodulator and method of modulation/demodulation used for same |
| 05/04/2004 | US6731674 Device and method for generating quasi-orthogonal code and spreading channel signals in mobile communication system |
| 05/04/2004 | US6731671 Reception method including generating complex four-phase sequences for CDMA communication |
| 05/04/2004 | US6731624 Sync signal detection method and radio communication system |
| 05/04/2004 | US6731611 Method for duplex data transmission with QAM and demodulator for use in the method |
| 05/04/2004 | US6731595 Multi-carrier modulation and demodulation system using a half-symbolized symbol |
| 05/04/2004 | US6731594 Transmission system for OFDM-signals with optimized synchronisation |
| 05/04/2004 | US6731101 Modulation semiconductor integrated circuit device and testing method for oscillation circuit |
| 04/29/2004 | WO2004036863A1 Multiplex signal error correction method and device |
| 04/29/2004 | WO2004036862A1 Phasor fragmentation circuitry and method for processing modulated signals having non-constant envelopes |
| 04/29/2004 | WO2004036861A2 Methods and apparatus for synchronization of training sequences |
| 04/29/2004 | WO2004036860A1 Circuit arrangement for the analog-digital conversion of a voltage (ask-)modulated by modifying the amplitude between a low level and a high level |
| 04/29/2004 | WO2004036818A1 Constellation rearrangement for arq transmit diversity schemes |
| 04/29/2004 | WO2004036817A1 Constellation rearrangement for transmit diversity schemes |
| 04/29/2004 | WO2004036810A2 Method and apparatus for generating rf waveforms having aggregate energy with desired spectral characteristics |
| 04/29/2004 | WO2004036795A2 Method and apparatus for formatting signals for digital audio broadcasting transmission and reception |
| 04/29/2004 | WO2004036768A2 Transmission scheme for multi-carrier mimo systems |
| 04/29/2004 | WO2004036753A1 Phase estimation method in a digital and phase locked loop communication system |
| 04/29/2004 | WO2004036737A2 Transmitter |
| 04/29/2004 | WO2004036691A1 Apparatus and method for linearizing adaptive array antenna system |
| 04/29/2004 | WO2003009081A3 System, method and computer program to compute a fast fourier transform of data blocks |
| 04/29/2004 | US20040082356 MIMO WLAN system |
| 04/29/2004 | US20040082355 Method and apparatus of multi-carrier power control of base station in broad-band digital mobile communication system |
| 04/29/2004 | US20040082305 Sideband suppression method and apparatus for quadrature modulator using magnitude measurements |
| 04/29/2004 | US20040082302 Method of removing DC offset for a ZIF-based GSM radio solution with digital frequency correlation |
| 04/29/2004 | US20040082300 Digital imbalance correction method and device |
| 04/29/2004 | US20040081314 Electronic inductor with transmit signal telephone line driver |
| 04/29/2004 | US20040081313 System and method for wirelessly transmitting and receiving digital tokens for use in electronic gameplay |
| 04/29/2004 | US20040081263 Method and apparatus for receiving diversity transmissions |
| 04/29/2004 | US20040081260 Reception method, reception apparatus and wireless transmission system using adaptive modulation scheme |
| 04/29/2004 | US20040081257 Phase detectors in carrier recovery for offset QAM and VSB |
| 04/29/2004 | US20040081255 Reduced memory architecture for edge modulator |
| 04/29/2004 | US20040081253 Minimum shift QAM waveform and transmitter |
| 04/29/2004 | US20040081252 Digital RF transmitter |
| 04/29/2004 | US20040081251 Multi-rate encoding and decoding system |
| 04/29/2004 | US20040081247 Apparatus for adaptive resolution of phase ambiguity value |
| 04/29/2004 | US20040081205 Maximum likelihood synchronization for a communications system using a pilot symbol |
| 04/29/2004 | US20040081191 Method for recognizing station and method for establishing link in home network |
| 04/29/2004 | US20040081131 OFDM communication system with multiple OFDM symbol sizes |
| 04/29/2004 | US20040081078 System and method for wirelessly transmitting and receiving digital data using acoustical tones |
| 04/29/2004 | US20040081075 Code modulation adaptive and variable multiplexing transmission method and code modulation adaptive and variable multiplexing transmission apparatus |
| 04/29/2004 | US20040081073 Transmit diversity processing for a multi-antenna communication system |
| 04/29/2004 | DE4446640B4 Anordnung zur Trägernachführung bei einem IQ-Demodulator Arrangement for carrier tracking an IQ demodulator |
| 04/29/2004 | DE4446639B4 Verfahren zur Gewinnung einer Schätzung von Trägerfrequenz und Trägerphase eines nach einem kohärenten mehrstufigen Modulationsverfahren modulierten Funksignals zu dessen Demodulation in einem Empfänger A process for obtaining an estimate of carrier frequency and carrier phase of a modulated according to a coherent modulation method, multi-stage radio signal to the demodulation in a receiver |
| 04/29/2004 | DE10251309B3 Kohärente und nichtkohärente Datenpfadaufspaltung in Empfängern für eine verbesserte Synchronisierung Coherent and non-coherent data path splitting in receivers for improved synchronization |
| 04/29/2004 | DE10248043A1 Phase-locked loop for frequency modulation of digital input data in transmission and reception device with bandwidth switching dependent on transmission or reception mode |
| 04/29/2004 | DE10055658B4 Verfahren und Schaltung zur Synchronisation eines Empfängers für ein faltungskodiertes Empfangssignal Method and circuit for synchronizing a receiver for a convolutionally coded signal reception |
| 04/29/2004 | DE10000958B4 Schaltungsanordnung zur Erzeugung eines quadraturamplitudenmodulierten Sendesignals Circuit arrangement for producing a quadrature amplitude modulated transmission signal |
| 04/29/2004 | CA2500339A1 Transmission scheme for multi-carrier mimo systems |
| 04/28/2004 | EP1414209A1 Apparatus and method for generating a preamble sequence in an OFDM communication system |
| 04/28/2004 | EP1414208A1 Synchronization using training sequences with a periodical structure |
| 04/28/2004 | EP1414207A1 Phase error correction circuit, receiver and method for selecting a measured preamble phase error depending on the timing of a detected unique word |
| 04/28/2004 | EP1414206A1 Semiconductor device and data transfer system |
| 04/28/2004 | EP1414180A2 Activation of multiple xDSL modems with implicit channel probe |
| 04/28/2004 | EP1414177A1 Channel estimation for OFDM using orthogonal training sequences |
| 04/28/2004 | EP1414163A1 Receiver and communication terminal |
| 04/28/2004 | EP1413111A2 Signal decomposition for the control of its dynamic range |
| 04/28/2004 | EP1413110A2 Demodulation of psk signals |
| 04/28/2004 | EP1413109A1 Null-pilot symbol assisted fast automatic frequency control |
| 04/28/2004 | EP1413108A2 Method for avoiding interference radiation of am transmitters used in digital transmission |
| 04/28/2004 | EP1413082A1 Method for data communication between a single-carrier and a multi-carrier system |
| 04/28/2004 | EP1413079A2 Dvcpro wireless transmission system using cofdm |
| 04/28/2004 | EP1413077A1 Multi-carrier communication with time division multiplexing and carrier-selective loading |
| 04/28/2004 | EP1413068A1 Channel estimation in a multi-carrier transmission diversity system |
| 04/28/2004 | EP1413067A1 Apparatus and method for detecting ripples caused by multipath propagation and controlling receiving antenna and tuner |
| 04/28/2004 | EP1413059A1 Bit-interleaved coded modulation using low density parity check (ldpc) codes |
| 04/28/2004 | EP1412841A1 Method for transmitting data flows and warm start sequence for s(h)dsl modems |
| 04/28/2004 | EP1412763A1 Method and arrangement for reducing power consumption of a line driver |
| 04/28/2004 | EP1084540B1 Device and method for generating and distributing coded symbols in cdma communication system |
| 04/28/2004 | EP1034665B1 Device and method for generating quasi-orthogonal code and spreading channel signals in mobile communication system |
| 04/28/2004 | CN1493166A Apparatus and method for OFDM data communications |
| 04/28/2004 | CN1493137A Quadrature amplitude modulation method for digital mobile communication system |
| 04/28/2004 | CN1493136A Phase detection circuit and receiver |
| 04/28/2004 | CN1493135A Symbol point estimating device, method and program, recording medium medium on which the program is recorded, and modulation analyzing device |
| 04/28/2004 | CN1493129A Apparatus and method for combining soft symbols in mobile communication system |
| 04/28/2004 | CN1493126A Method and apparatus for determining modulation scheme for retransmission in a communication system |
| 04/28/2004 | CN1493123A Radio transmission apparatus, radio transmission method |
| 04/28/2004 | CN1493106A Amplication systems and methods usnig fixed and modulated power supply voltages and buck-boost control |
| 04/28/2004 | CN1492678A Digital broadcast receiver and digital broadcast station selector |
| 04/28/2004 | CN1492620A Method and device for formatted transmission data |
| 04/28/2004 | CN1492609A Automatic power control system for CDMA communication system |
| 04/28/2004 | CN1492598A Satellite communication system using low density parity check code |
| 04/28/2004 | CN1492597A Super wide band direct sequence two-phase phase shift key control narrow pulse generator |
| 04/28/2004 | CN1492596A Super wide band communication system and method using direct extension and pulse polarizing modulation |
| 04/28/2004 | CN1492593A Start of multiple xDSL modem with hidden channel probe |
| 04/28/2004 | CN1492592A Start of multiple xDSL modem with hidden channel probe |
| 04/28/2004 | CN1148106C Decoding device and method for compressed multiple-track audio bit element flow |
| 04/28/2004 | CN1148037C Method and device for detecting phase |
| 04/28/2004 | CN1148036C Pai/n displacement phase shift key control demodulater |
| 04/28/2004 | CN1148021C Communication system and operating method thereof |