| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 12/09/2004 | US20040246886 Estimating a transmission channel with pilot symbols distributed in lattice structure |
| 12/09/2004 | US20040246193 Bi-directional vector modulator |
| 12/09/2004 | US20040246134 Use of a subcarrier in an organic semiconductor radio frequency identification system |
| 12/09/2004 | DE19607207B4 Verfahren zum Aufteilen der Gesamtrate und der Gesamtsendeleistung eines Datenstroms auf mehrere Kanäle einer Kanalgruppe Method of dividing the total rate and the total transmit power of a data stream to multiple channels, a channel group |
| 12/09/2004 | DE10361992A1 Verfahren zur Verschlüsselung digitalisierter Information Method for encrypting digitized information |
| 12/09/2004 | DE10321743A1 Verbesserte Kanaldecodierung bei der Mehrträger-Signalübertragung durch DC-Offset- und Trägerfrequenz-Offset-abhängige Gewichtung von Zuverlässigkeitsinformationen Improved channel decoding in the multi-carrier signal transmission by DC offset and carrier frequency offset-dependent weighting of reliability information |
| 12/09/2004 | DE10320917A1 Method for generating transmission signal with reduced crest factor for high bit rate data transmitting telecommunication systems, using multicarrier transmission with transmission signal containing section with at least one peak value |
| 12/09/2004 | DE10320229A1 Combined transmission of analogue and digital information as alternating wave, encodes analog signal as amplitudes, digital signal in terms of cycle timings |
| 12/09/2004 | DE10201415B4 Verfahren zum Aufbau einer Datenübertragungsverbindung zwischen xDSL-Transceivern und xDSL-Transceiver A method for establishing a data transmission connection between xDSL transceivers and xDSL transceiver |
| 12/09/2004 | CA2525848A1 Method and simultaneous radio broadcast transmitter using a pre-filtering of the multi-carrier digital signal |
| 12/09/2004 | CA2522588A1 Method and system for wireless communication networks using relaying |
| 12/08/2004 | EP1484881A1 Carrier wave reproduction apparatus |
| 12/08/2004 | EP1484880A2 Demodulation device and demodulation method for wireless data communication |
| 12/08/2004 | EP1484838A2 Reduced local oscillator feedthrough quadrature image reject mixer |
| 12/08/2004 | EP1483864A1 System and method for communicating data during an audio conference |
| 12/08/2004 | EP1483863A1 System and method for dynamically establishing optimum audio quality in an audio conference |
| 12/08/2004 | EP1483857A1 Systems and methods for high rate ofdm communications |
| 12/08/2004 | EP1483754A2 Transport block set transmission using hybrid automatic repeat request |
| 12/08/2004 | EP1483662A1 Device and method for performing multiple modulus conversion using inverse modulus multiplication |
| 12/08/2004 | EP1483646A2 System and method for communication channel and device control via an existing audio channel |
| 12/08/2004 | EP0865686B1 A zero-if receiver |
| 12/08/2004 | CN2662571Y Single-Carrier Frequency-Domain Equalization (SC-FDE) subscriber equipment with automatic physical layer request retransmission mechanism |
| 12/08/2004 | CN2662570Y High Speed Downlink Packet Access (HSDPA) base station with automatic physical layer request retransmission mechanism |
| 12/08/2004 | CN1554154A A calibrated DC compensation system for a wireless communication device configured in a zero intermediate frequency architecture |
| 12/08/2004 | CN1553709A Base band OQAM signal generating method in digital ground broadcasting transmission |
| 12/08/2004 | CN1553617A Baseband receiving synchronous acquiring method and apparatus for CDMA system |
| 12/08/2004 | CN1553604A OFDM frequency synchronous method based on training sequence |
| 12/08/2004 | CN1553603A OFDM time synchronous method based on training sequence |
| 12/08/2004 | CN1553588A Self-adaptation balancing apparatus for SDH transmission system circuit attenuation compensation |
| 12/08/2004 | CN1179526C Method for transmitting data to be transmitted using subscriber modem |
| 12/08/2004 | CN1179525C Method for estimating frequency shift of CPFSK signal |
| 12/08/2004 | CN1179524C Method and apparatus for transforming channel estimate |
| 12/08/2004 | CN1179513C Method and apparatus for mapping bits to information burst |
| 12/08/2004 | CN1179498C Radio receiving device and radio receiving method |
| 12/08/2004 | CN1179490C Transmission of digital and analog signals in same band |
| 12/08/2004 | CN1179488C Digital transmission system and method comprising punctured product code combined with quadrature amplitude modulation |
| 12/07/2004 | US6829534 Method and apparatus for performing timing synchronization |
| 12/07/2004 | US6829317 Signalling method in a radio communication system, and transmitters, receivers and repeaters for implementing the method |
| 12/07/2004 | US6829310 Method of high and low bit rate transmission on the command link of a satellite |
| 12/07/2004 | US6829308 Satellite communication system utilizing low density parity check codes |
| 12/07/2004 | US6829307 Express bit swapping in a multicarrier transmission system |
| 12/07/2004 | US6829298 Signal processing circuit for a digital signal receiving system |
| 12/07/2004 | US6829251 System and method for increasing data capacity in communication systems |
| 12/07/2004 | US6828893 Transformer circuit arrangement |
| 12/07/2004 | CA2331203C Communication system |
| 12/02/2004 | WO2004105339A2 Bi-directional vector modulator and phased array antenna |
| 12/02/2004 | WO2004105338A1 Automatic power control circuitry for a qam transmitter unit of a wireless communication device |
| 12/02/2004 | WO2004105337A1 Repetition coding in a satellite-based communications system |
| 12/02/2004 | WO2004105336A2 Method and system for mitigating fourier transform side lobes |
| 12/02/2004 | WO2004105335A1 Apparatus and method for processing an impulse response of a channel |
| 12/02/2004 | WO2004105326A2 Time-triggered communication system and method for the synchronized start of a dual-channel network |
| 12/02/2004 | WO2004105302A1 A unified receiver for layered and hierarchical modulation systems |
| 12/02/2004 | WO2004105301A1 Method of reducing the variance of a signal-to-noise ratio estimate for a signal with differential phase and coherent amplitude modulation |
| 12/02/2004 | WO2004105294A2 Power control and scheduling in an ofdm system |
| 12/02/2004 | WO2004105283A2 Method and apparatus for odu to idu telemetry interface in vsat systems |
| 12/02/2004 | WO2004105265A1 Transmitter apparatus and communication system |
| 12/02/2004 | WO2004104530A2 Interference and noise estimation in an ofdm system |
| 12/02/2004 | WO2004086712A3 Transmission mode selection for data transmission in a multi-channel communication system |
| 12/02/2004 | US20040243655 Direct RF sampling for cable applications and other broadband signals |
| 12/02/2004 | US20040243258 Carrier interferometry coding and multicarrier processing |
| 12/02/2004 | US20040242173 Diversity receiver and receiving method |
| 12/02/2004 | US20040240596 Receiver architecture employing low intermediate frequency and complex filtering |
| 12/02/2004 | US20040240594 Method and arrangement for removing DC offset from data symbols |
| 12/02/2004 | US20040240593 Frequency offset compensation estimation system and method for a wireless local area network |
| 12/02/2004 | US20040240588 Compensation for non-linear distortion in a modem receiver |
| 12/02/2004 | US20040240581 Real time dynamic correlator |
| 12/02/2004 | US20040240576 Method for diversity reception of a multicarrier signal, receiver and corresponding system |
| 12/02/2004 | US20040240574 Par reduction for edge clipper |
| 12/02/2004 | US20040240573 Direct coversion receiver |
| 12/02/2004 | US20040240572 Multicarrier signal, method of tracking a transmission channel based on such a signal and device therefor |
| 12/02/2004 | US20040240571 Transmission method, transmission apparatus, and reception apparatus |
| 12/02/2004 | US20040240570 Method for estimating the transfer function of a multicarrier signal transmission channel and corresponding receiver |
| 12/02/2004 | US20040240569 Method and apparatus for determining a timing offset for processing a multi-carrier signal |
| 12/02/2004 | US20040240566 Method and a system for transferring amr signaling frames on halfrate channels |
| 12/02/2004 | US20040240537 Method for measuring the modulation error of digitally modulated high frequency signals |
| 12/02/2004 | US20040240535 Fast exchange during intialization in multicarrier communication systems |
| 12/02/2004 | US20040240481 Communication system, receiver apparatus and communicating method |
| 12/02/2004 | US20040240379 Mode detection for OFDM signals |
| 12/02/2004 | US20040240377 Packet data transmission using variable dqpsk modulation |
| 12/02/2004 | US20040240376 Method for reducing channel estimation error in an OFDM system |
| 12/02/2004 | DE10338521A1 Signal burst start detection method for detecting the beginning of a signal burst in a wireless signal, whereby the position of the maximum of a correlation result is used to calculate a first hypothesis for the start position |
| 12/02/2004 | CA2780146A1 Power control and scheduling in an ofdm system |
| 12/02/2004 | CA2527332A1 Method of reducing the variance of a signal-to-noise ratio estimate for a signal with differential phase and coherent amplitude modulation |
| 12/02/2004 | CA2525821A1 Method and apparatus for odu to idu telemetry interface in vsat systems |
| 12/02/2004 | CA2525805A1 Interference and noise estimation in an ofdm system |
| 12/02/2004 | CA2525588A1 Power control and scheduling in an ofdm system |
| 12/01/2004 | EP1482699A2 Burst structure for multicarrier transmission, and synchronisation of bursts, symbols and frequency |
| 12/01/2004 | EP1482653A1 Variable communication system |
| 12/01/2004 | EP1481521A1 MODULATOR/TRANSMITTER APPARATUS AND METHOD |
| 12/01/2004 | EP1481520A1 Frequency-timing control loop for wireless communication systems |
| 12/01/2004 | EP1481502A2 Hierarchical preamble constructions for ofdma based on complementary sequences |
| 12/01/2004 | EP1481487A1 Transmission system |
| 12/01/2004 | EP1249079B1 Method and device for determining the carrier frequency of base stations in the mobile receiver of a cellular mobile telephony system working with w-cdma |
| 12/01/2004 | EP1058988B1 Method and circuit for demodulating a digital frequency-modulated signal |
| 12/01/2004 | CN1552136A Method for the adapting the bit rate of a bit stream which is to be transmitted in a communication system and corresponding communication device |
| 12/01/2004 | CN1552132A Method and apparatus for utilizing channel state information in a wireless communication system |
| 12/01/2004 | CN1551587A Improved channel decoding of multi-carrier signal transmisson |
| 12/01/2004 | CN1551586A QPSK demodulation with soft outputs for third generation tdd systems |
| 12/01/2004 | CN1551585A Method and apparatus for transferring and receiving ultra wideband signals using differential phase shift keying scheme |
| 12/01/2004 | CN1551550A Receiving diversity apparatus and method of mobile station for high data rate type mobile communication system |