| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 10/19/2004 | US6807145 Diversity in orthogonal frequency division multiplexing systems |
| 10/19/2004 | US6806816 Robust system for transmitting and receiving map data |
| 10/19/2004 | CA2212831C Amplitude and phase error normalization of subcarrier generator |
| 10/19/2004 | CA2208053C Method and apparatus for using walsh shift keying in a spread spectrum communication system |
| 10/14/2004 | WO2004088945A1 Method and apparatus for linearization in a quadrature transmitter |
| 10/14/2004 | WO2004088914A1 Frequency synchronization apparatus and frequency synchronization method |
| 10/14/2004 | WO2004088902A2 Method and apparatus for mitigating the effects of non-ideal receiver processing |
| 10/14/2004 | WO2004088901A2 Method and system for synchronization in a frequency shift keying receiver |
| 10/14/2004 | WO2004088892A1 Ofdm reception device and ofdm reception method |
| 10/14/2004 | WO2004088852A1 Turbo demodulator |
| 10/14/2004 | WO2004088642A2 Frequency shaping stream signal processor |
| 10/14/2004 | WO2004006441A3 Method and system for memory management in low density parity check (ldpc) decoders |
| 10/14/2004 | US20040203992 Power controllable wireless mobile communications system of adaptive modulation and coding scheme and method therefor |
| 10/14/2004 | US20040203829 Communication terminal apparatus, base station apparatus, and radio communication method |
| 10/14/2004 | US20040203557 Single oscillator DSSS and OFDM radio receiver |
| 10/14/2004 | US20040203472 Compensation of I-Q imbalance in digital transceivers |
| 10/14/2004 | US20040203468 Transmit diversity and separating multiple loopback signals |
| 10/14/2004 | US20040203430 Peak power reduction using windowing and filtering |
| 10/14/2004 | US20040203404 Apparatus, and associated method, for estimating frequency offset of a data symbol communicated in a communication system |
| 10/14/2004 | US20040203401 Adaptive receiver architecture |
| 10/14/2004 | US20040203395 Slowing the observed rate of channel fluctuations in a multiple antenna system |
| 10/14/2004 | US20040202255 Dual polarity coding system and method for a millimeter wave communication system |
| 10/14/2004 | US20040202239 Power spectral density masks for improved spectral compatibility |
| 10/14/2004 | US20040202238 Receiving apparatus and method of high speed digital data communication system |
| 10/14/2004 | US20040202234 Low-complexity and fast frequency offset estimation for OFDM signals |
| 10/14/2004 | US20040202193 Low noise hybrid circuit for communications systems using time division mulitiplexing |
| 10/14/2004 | US20040202142 Method and apparatus for transmission and reception of data |
| 10/14/2004 | US20040202138 Multicarrier DS/CDMA system using a turbo code with nonuniform repetition coding |
| 10/14/2004 | US20040202134 Method and apparatus for maximizing a data rate of a wireless data communication system |
| 10/14/2004 | US20040202103 Apparatus and method for generating a preamble sequence in an OFDM communication system |
| 10/14/2004 | US20040202102 Automatic gain control device and method in orthogonal frequency division multiplexing system with DC offset compensation function, and recording medium storing program containing the method |
| 10/14/2004 | US20040201453 Non-contact smart card interrogator, wherein across a transmission line from an antenna to a receiver the signal modulation varies between amplitude modulation and phase modulation |
| 10/14/2004 | US20040201415 FM signal receiver and wireless communications device using same |
| 10/14/2004 | DE10311337B3 Coded pilot signal processing method in mobile radio receiver for mobile telecommunications provides frequency error estimation via frequency error symbol pairs obtained by decoding adjacent symbols |
| 10/14/2004 | DE10310810B3 Data symbol filtering device for decision-based data processing system within communications receiver using comparison of received data symbols with required data symbols by median filter |
| 10/14/2004 | CA2514886A1 Frequency synchronization apparatus and frequency synchronization method |
| 10/13/2004 | EP1467508A1 Pilot multiplex method in ofdm system and ofdm receiving method |
| 10/13/2004 | EP1466457A1 Method for establishing a data transmission connection between xdsl transceivers |
| 10/13/2004 | EP1466456A2 A method and apparatus for symbol synchronization using matched filtering |
| 10/13/2004 | EP1466455A2 Frequency error estimation |
| 10/13/2004 | EP1466454A1 Method and arrangement for automatic frequency correction |
| 10/13/2004 | EP1466446A1 Co-existence of ofdm and dsss/cck stations in a wlan |
| 10/13/2004 | EP1466445A2 Coexistence of modulation schemes in a wlan |
| 10/13/2004 | EP1466432A1 Self-interference removal using converter compensation in a relayed communication system |
| 10/13/2004 | EP1466421A1 Rake receiver with individual finger compensator(s) |
| 10/13/2004 | EP1329028A4 Subharmonic mixer circuit and method |
| 10/13/2004 | EP0782791A4 An ultrawide-band communications system and method |
| 10/13/2004 | EP0688487B1 Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto |
| 10/13/2004 | CN1537399A Circuit arrangement for switching mobile radio transmitter between two modulation modes |
| 10/13/2004 | CN1537373A Method and device for establishing synchronization with synchronization signal |
| 10/13/2004 | CN1537370A 直接变换接收机 Direct conversion receiver |
| 10/13/2004 | CN1537343A Tuning multiplexer |
| 10/13/2004 | CN1536907A Receiving equipment and method for high speed digital data communication system |
| 10/13/2004 | CN1536862A Method and device of estimating transmission channel performance |
| 10/13/2004 | CN1536861A XDSL test method |
| 10/13/2004 | CN1536804A Digital clock recovery device in data communication system |
| 10/13/2004 | CN1171491C Adaptive channel allocation in frequency division multiplexed system |
| 10/13/2004 | CN1171449C Demodulator for high-definition TV receiver |
| 10/13/2004 | CN1171432C Method and apparatus for detecting dual-tone warning signals in telephone system |
| 10/13/2004 | CN1171424C Apparatus and method for digital radio communication |
| 10/13/2004 | CN1171423C Digital satellite broadcasting receiver and center controlling method |
| 10/13/2004 | CN1171422C Transmitter |
| 10/13/2004 | CN1171421C Direct-convertion receiver |
| 10/13/2004 | CN1171406C Radio communication system, transmission method, wireless base station and terminals |
| 10/13/2004 | CN1171403C Method and device for estimating transmission channel characteristics |
| 10/13/2004 | CN1171397C Method for generating complex quasi-ortrhogonal code and apparatus and method for spreading channel |
| 10/13/2004 | CN1171379C Up/down conversion apparatus and method |
| 10/12/2004 | US6804313 Approach for processing data received from a communications channel |
| 10/12/2004 | US6804311 Diversity detection for WCDMA |
| 10/12/2004 | US6804309 Modulation format identification device and method of same |
| 10/12/2004 | US6804306 Stable in-phase/quadrature (I/Q) generator method and apparatus |
| 10/12/2004 | US6804292 Broadband I/O circuits, interface and bus |
| 10/12/2004 | US6804211 Frame structure for an adaptive modulation wireless communication system |
| 10/12/2004 | US6804192 OFDM/DMT digital communications system including partial sequence symbol processing |
| 10/12/2004 | US6804191 Phase sequences for timing and access signals |
| 10/12/2004 | US6803970 Digital television receiver with match filter responsive to field synchronization code |
| 10/12/2004 | US6803814 Demodulator and method for the demodulation of modulated RF signals |
| 10/12/2004 | CA2399076C Method and apparatus for achieving 180· phase invariant transmission in a pcm modem system |
| 10/12/2004 | CA2279710C Method and device for demodulating receive signal including pilot signal |
| 10/12/2004 | CA2114214C Apparatus and method for controlling transmitted power of a modem |
| 10/07/2004 | WO2004086713A1 Orthogonal modulation device, method, program, recording medium, and modulation device |
| 10/07/2004 | WO2004086712A2 Transmission mode selection for data transmission in a multi-channel communication system |
| 10/07/2004 | WO2004086711A1 Position adjusted guard time interval for ofdm-communications system |
| 10/07/2004 | WO2004086710A1 System and method for two channel frequency offset estimation of ofdm signals |
| 10/07/2004 | WO2004086709A1 System and method for adaptive phase compensation of ofdm signals |
| 10/07/2004 | WO2004086708A1 Method and apparatus for ofdm symbol timing synchronization |
| 10/07/2004 | WO2004086707A1 Filtering method for transmit processing in orthogonal frequency division multiplex communication systems and related filtering apparatus |
| 10/07/2004 | WO2004086706A1 Apparatus and method for estimating a plurality of channels |
| 10/07/2004 | WO2004086705A1 Method and apparatus for processing multiple common frequency signals through a single cable using circulators |
| 10/07/2004 | WO2004086662A1 Method and apparatus for improving the performance of pilot symbol assisted receivers in the presence of narrowband interference |
| 10/07/2004 | WO2004086661A1 Ofdm transmitting method, transmitter, and receiver |
| 10/07/2004 | WO2004086634A1 Encoding apparatus and encoding method |
| 10/07/2004 | WO2004075469A3 Joint, adaptive control of equalization, synchronization, and gain in a digital communications receiver |
| 10/07/2004 | WO2004059901A3 Method and apparatus for am digital audio broadcasting with amplitude scaled tertiary subcarriers |
| 10/07/2004 | WO2004057820A3 Decision feedback equalizer |
| 10/07/2004 | WO2004039027A3 Multicarrier transmission using a plurality of symbol lengths |
| 10/07/2004 | US20040199846 Multicarrier communication apparatus and multicarrier communication method |
| 10/07/2004 | US20040199829 Smart receiver for wireless peripherals |
| 10/07/2004 | US20040199554 Frame synchronization in multicarrier transmission systems |
| 10/07/2004 | US20040198414 System and method for eliminating signal zero crossings in single and multiple channel communication systems |