| Patents for H04L 27 - Modulated-carrier systems (89,721) |
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| 02/18/2004 | EP1236321B1 Multichannel adaptive equaliser |
| 02/18/2004 | EP1020057B1 Fsk demodulator using a superlinear integrator |
| 02/18/2004 | EP0800737B1 Multiple access digital transmitter and receiver |
| 02/18/2004 | CN1476707A Method for reducing transmissions in boundary zones, in AM transmitters operating in digital mode |
| 02/18/2004 | CN1476705A Demodulation apparatus and method in communication system employing 16-ary QAM |
| 02/18/2004 | CN1476704A Demodulation apparatus and method in communication system employing 8-ary PSK modulation |
| 02/18/2004 | CN1476703A Receiver for determining modulation type |
| 02/18/2004 | CN1476695A Cyclic delay diversity for mitigating ISI in OFDM systems |
| 02/18/2004 | CN1476683A RAKE receiver and methof of providing frequency error estimate |
| 02/18/2004 | CN1476677A Subharmonic circuit and method |
| 02/18/2004 | CN1476269A Wireless receiving apparatus, method and program thereof |
| 02/18/2004 | CN1476211A Modulation-demodulation method and its device |
| 02/18/2004 | CN1476190A Diversity apparatus and diversity method |
| 02/18/2004 | CN1476189A Orthogonal frequency division multiplexing communication method and equipment adaptive to channel charactoristics |
| 02/18/2004 | CN1476187A Method and equipment used for compensating frequency deviation in intertangling type frequency division multiple path |
| 02/18/2004 | CN1476186A Method of eliminating noise of digital audio frequency device during modulating signal |
| 02/18/2004 | CN1139274C Mobile communication system |
| 02/18/2004 | CN1139237C Telephone circuit with frequency shift keying function and decoding method for telephone circuit |
| 02/18/2004 | CN1139231C Method for demodulating carrier wave modulated by digital symbol sequence |
| 02/18/2004 | CN1139230C Apparatus and method for estimating channel in radio system |
| 02/18/2004 | CN1139211C Multiplex transmission device of CDMA mode and multiplex transmission method of CDMA mode |
| 02/18/2004 | CN1139207C Digital audio broadcasting method and apparatus using puncturable convolutional code |
| 02/18/2004 | CN1139200C Method for reference signal generation in presence of frequency offsets in communication station with spatial processing |
| 02/17/2004 | US6694148 Transmit power control for MCPA-equipped based stations |
| 02/17/2004 | US6694105 Burst mode receiving apparatus having an offset compensating function and a data recovery method thereof |
| 02/17/2004 | US6693983 Method and system for detection of short digital radio messages |
| 02/17/2004 | US6693979 Adaptive smoothing system for fading communication channels |
| 02/17/2004 | US6693978 Carrier reproducing circuit |
| 02/17/2004 | US6693977 Portable radio device with direct conversion receiver including mixer down-converting incoming signal, and demodulator operating on downconverted signal |
| 02/17/2004 | US6693973 Apparatus, and associated method, for forming a systematic, recursive, space-time code |
| 02/17/2004 | US6693972 Data apparatus for maintaining analog line signal during a data sample underrun condition |
| 02/17/2004 | US6693970 QAM modulator |
| 02/17/2004 | US6693969 Phase-locked loop methods and structures for generating modulated communication signals with nonconstant envelopes |
| 02/17/2004 | US6693957 Adaptive front end for discrete multitone modem |
| 02/17/2004 | US6693956 Power amplifier having negative feedback circuit for transmitter |
| 02/17/2004 | US6693882 Frequency correction burst detection |
| 02/17/2004 | US6693581 Device for transmitting data in a motor vehicle |
| 02/12/2004 | WO2004014034A2 Method for dividing the bit rate of qpsk signals into two or several subchannels |
| 02/12/2004 | WO2004014031A1 Apparatus and methods for suppression of interference |
| 02/12/2004 | WO2004014012A1 Coding and decoding for rate matching in data transmission |
| 02/12/2004 | WO2004014008A2 Carrier frequency offset estimation in a wireless communication system |
| 02/12/2004 | WO2004014005A1 Extracting the phase of an ofdm signal sample |
| 02/12/2004 | WO2004014004A1 Multi-carrier transmitting apparatus and multi-carrier transmitting method |
| 02/12/2004 | WO2004013999A1 Centralized buffer architecture for an orthogonal frequency division multiplexing (ofdm) receiver |
| 02/12/2004 | WO2004013993A1 Radio base station apparatus |
| 02/12/2004 | WO2003075396A3 System and method for antenna diversity using joint maximal ratio combining |
| 02/12/2004 | WO2003075130A3 System and method for communication channel and device control via an existing audio channel |
| 02/12/2004 | WO2002103975A3 Increasing precision in multi-stage processing of digital signals |
| 02/12/2004 | WO2002061997A3 Dvcpro wireless transmission system using cofdm |
| 02/12/2004 | US20040030530 Apparatus and method for detection of direct sequence spread spectrum signals in networking systems |
| 02/12/2004 | US20040029579 Wireless communication system |
| 02/12/2004 | US20040029550 Radio equipment |
| 02/12/2004 | US20040028161 Signal derotating receiver |
| 02/12/2004 | US20040028160 Method for frequency acquisition, especially for initial frequency acquisition, of a mobile communications device |
| 02/12/2004 | US20040028151 Conversion circuit, tuner and demodulator |
| 02/12/2004 | US20040028148 Reduced complexity multicarrier precoder |
| 02/12/2004 | US20040028147 Method of modulating a data signal with modulation switching between direct and differential modulation and apparatus for modulation |
| 02/12/2004 | US20040028146 Method and apparatus for transferring multiple symbol streams at low bit-error rates in a narrowband channel |
| 02/12/2004 | US20040028144 Method and device for injecting a noise signal into a paired wire communication link |
| 02/12/2004 | US20040028076 Robust data extension for 8vsb signaling |
| 02/12/2004 | US20040028012 Flexible method and apparatus for encoding and decoding signals using a time division multiple frequency scheme |
| 02/12/2004 | US20040028011 Method and apparatus for adapting signaling to maximize the efficiency of spectrum usage for multi-band systems in the presence of interference |
| 02/12/2004 | US20040028002 Satellite communication system utilizing low density parity check codes |
| 02/12/2004 | US20040027152 System and method for transmission-line termination by signal cancellation, and applications thereof |
| 02/12/2004 | DE10131251B4 Messung der Frequenzen und Amplituden bei Mehrtonsignalen Measurement of the frequencies and amplitudes at multitone |
| 02/11/2004 | EP1388954A2 Method for multiple access and transmission in a point-to-multipoint system on an electrical network |
| 02/11/2004 | EP1388942A2 Conversion circuit, tuner and demodulator |
| 02/11/2004 | EP1388936A2 Method of adjustment for receiver of signals transmitted in bursts and corresponding receivers |
| 02/11/2004 | EP1388242A1 Method for demodulating a signal integrating phase error effect and corresponding receiver |
| 02/11/2004 | EP1388227A1 Signal generator with display unit |
| 02/11/2004 | EP0991992B1 Circuit for passive data carrier reducing the power consumption |
| 02/11/2004 | CN1475068A Apparatus for receiving and recovering frequency shift keyed symbols |
| 02/11/2004 | CN1475067A Active terminating device with optional line-receiving and line-driving capabilities |
| 02/11/2004 | CN1475066A Method for optimal estimation of propagation channel relying solely on pilot symbols and corresponding estimator |
| 02/11/2004 | CN1474524A Interference reduction of simultaneous broadcasting |
| 02/11/2004 | CN1138430C Method of combining several signals, and base station |
| 02/11/2004 | CN1138390C Orthogonal frequency division multiplex multi-carrier modulation method for digital TV signals |
| 02/11/2004 | CN1138389C Frame synchronization and equalization coefficient correction method |
| 02/11/2004 | CN1138379C Method and device for formating data frame |
| 02/11/2004 | CN1138378C System and method for recovering symbol timing offset and carrier frequency error in OFDM digital audio frequency broadcast system |
| 02/11/2004 | CN1138348C Digital circuit, transceiver with said digital circuit and method for transmitting and receiving signal |
| 02/11/2004 | CN1138345C Digital reception device and method with radio frequency sampling |
| 02/10/2004 | US6691262 Method and apparatus for quality evaluation of cable circuit |
| 02/10/2004 | US6690768 Power cutback configuration of digital subscriber line transceivers using public switched telephone network signaling |
| 02/10/2004 | US6690753 Receiver having decisional feedback equalizer with remodulation and related methods |
| 02/10/2004 | US6690751 Method and receiver for receiving and decoding signals modulated with different modulation methods |
| 02/10/2004 | US6690748 Receiver with improved digital intermediate to base band demodulator |
| 02/10/2004 | US6690747 Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing |
| 02/10/2004 | US6690746 Signal recognizer for communications signals |
| 02/10/2004 | US6690745 Circuit for detecting the phase of received signal |
| 02/10/2004 | US6690743 Compensation of delay in linearization loop of power amplifier |
| 02/10/2004 | US6690742 Adaptively configurable class-A/class-B transmit DAC for transceiver emission and power consumption control |
| 02/10/2004 | US6690741 Ultra wideband data transmission system and method |
| 02/10/2004 | US6690740 Methods and apparatus for providing robust synchronization of radio transceivers |
| 02/10/2004 | US6690736 Bit allocation in a transmission system |
| 02/10/2004 | US6690718 Asymmetric digital subscriber line transceiver unit-card and method of controlling the same |
| 02/10/2004 | US6690717 Multi-tone transceiver system using two steps of DMT-CMFB |
| 02/10/2004 | US6690716 Correlator for realizing low current consumption |
| 02/10/2004 | US6690711 User equipment which uses pre-rotation before transmission |
| 02/10/2004 | US6690680 Communication system signal synchronization techniques |