Patents for H04L 27 - Modulated-carrier systems (89,721) |
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02/27/2002 | EP0765549B1 Ofdm signal organized so as to simplify reception |
02/27/2002 | CN2479689Y Radio-frequency device |
02/27/2002 | CN1338162A Communication terminal and wireless communication method |
02/27/2002 | CN1338154A Hardware-efficient transceiver with Delta-Sigma digital-to-analog converter |
02/27/2002 | CN1337787A Receiving apparatus and integrated circuit for receiving |
02/27/2002 | CN1080053C Method and apparatus for digital combination of channel information in DS-CDMA communication system |
02/27/2002 | CN1080052C System for acquisition of carrier phase and symbol timing received from communication signals |
02/27/2002 | CN1080051C Precise detection method and apparatus of frequency error |
02/27/2002 | CN1080035C Modulation-demodulation signal transmitter, transmitting method and its transmitting system |
02/27/2002 | CN1080031C Local oscillator phase noise cancelling modulation technique |
02/27/2002 | CN1080030C Improved ADSL compatible discrete multi-tone apparatus |
02/27/2002 | CN1080025C Digital calibration of a transceiver |
02/26/2002 | US6351677 Method and device in a telecommunication system |
02/26/2002 | US6351631 Carrier generations facility for a digital MPX-signal demodulation micronas intermetall GMBH |
02/26/2002 | US6351509 Method and apparatus for reducing power consumption of digital subscriber line modems |
02/26/2002 | US6351503 Threshold extension block phase estimator for quasi-coherent communications systems |
02/26/2002 | US6351498 Robust digital modulation and demodulation scheme for radio communications involving fading |
02/26/2002 | US6351497 Communication system |
02/26/2002 | US6351473 Method to allocate data bits, multi-carrier transmitter and receiver using the method, and related allocation message generator |
02/26/2002 | US6351293 Decision directed phase detector |
02/26/2002 | US6351290 Television receiver with separate I-F amplifiers for VSB and QAM digital TV signals that are digitally synchrodyned |
02/26/2002 | US6351185 Increased output swing line drivers for operation at supply voltages that exceed the breakdown voltage of the integrated circuit technology |
02/26/2002 | CA2208276C Multiband mobile unit communication apparatus |
02/21/2002 | WO2002015508A1 Frequency and time synchronisation of an ofdm receiver by means of maximum likelihood decoding |
02/21/2002 | WO2002015507A1 Method and apparatus for reducing multi-carrier signals ratio of peak power to average power |
02/21/2002 | WO2002015502A2 Adaptive linear equalisation for walsh-modulated |
02/21/2002 | WO2002015443A1 System and method for huffman shaping in a data communication system |
02/21/2002 | WO2002015425A1 Method and apparatus for a software configurable wireless modem adaptable for multiple modes of operation |
02/21/2002 | WO2002015387A2 Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control |
02/21/2002 | WO2002015384A1 Method and apparatus for a frequency agile variable bandwidth transceiver |
02/21/2002 | WO2002013593A2 Distributed architecture wireless rf modem |
02/21/2002 | WO2001089103B1 Digital waveform generator apparatus and method therefor |
02/21/2002 | WO2001063792A3 Apparatus for linear transmitter with improved loop gain stabilization |
02/21/2002 | US20020023247 System for transmitting information codes with multi-level modulation scheme and a modulation apparatus |
02/21/2002 | US20020021773 Diversity receiver |
02/21/2002 | US20020021769 Receiving device and integrated circuit for reception |
02/21/2002 | US20020021764 Multi-frequency transmitter using predistortion and a method of transmitting |
02/21/2002 | US20020021750 Method and apparatus for selective equalizer tap initialization in an OFDM system |
02/21/2002 | US20020021715 Frequency tracking device for a receiver of a multi-carrier communication system |
02/21/2002 | US20020021686 System for using rapid acquisition spreading codes for spread-spectrum communications |
02/21/2002 | US20020021683 Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols |
02/21/2002 | US20020021679 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
02/21/2002 | US20020021475 Optical signal receiver and optical space transmission system |
02/21/2002 | US20020021165 Device and method for recovering frequency redundant data in a network communications receiver |
02/21/2002 | DE10038681A1 Demodulationsverfahren und Demodulator für CPFSK-modulierte Signale A demodulating method and demodulator for CPFSK-modulated signals |
02/21/2002 | DE10037996A1 Elektronisches Gerät, insbesondere Feldgerät Electronic device, in particular field device |
02/20/2002 | EP1180884A2 QAM receiver with gain control, dc-offset correction, and passband equalisation |
02/20/2002 | EP1180867A1 Signal processor for multiplex communication system and signal processing method therefor |
02/20/2002 | EP1180853A1 Method and apparatus for automatic frequency control and demodulator |
02/20/2002 | EP1180851A2 COFDM tuner with impulse noise reduction |
02/20/2002 | EP1180302A1 Electronic inductor with transmit signal telephone line driver |
02/20/2002 | CN1337125A Method for implementing multipoint codes in an exchange |
02/20/2002 | CN1337088A Multi-frequency transmitter using predistortion and a method of transmitting |
02/20/2002 | CN1336762A Multiple module device having static characters |
02/20/2002 | CN1336749A Frequency multiple program for OFDM system |
02/20/2002 | CN1336737A Method and system for processing orthogonal frequency-division multiplex singal |
02/20/2002 | CN1336723A Self-adaptive distortion compensation arrangement |
02/20/2002 | CN1336721A Method and device for detecting weak signal of known frequency |
02/20/2002 | CN1079620C Signal processing system |
02/20/2002 | CN1079619C Phase error detecting method and phase tracking loop circuit |
02/20/2002 | CN1079615C Code acquisition in CDMA communication system using multiple Walsh channel |
02/19/2002 | US6349120 Method for improving spectral sampling using sub-burst discreet fourier transforms |
02/19/2002 | US6349111 Circuit for allocating a transmission channel on the electric network |
02/19/2002 | US6348876 Burst QAM downhole telemetry system |
02/19/2002 | CA2263244C Digital qam modulator using post filtering carrier recombination |
02/19/2002 | CA2231226C Single tone signal detector |
02/19/2002 | CA2222462C Method and apparatus for a unique word differential detection and demodulation using the unique word differential detection |
02/19/2002 | CA2192605C Modulating array transmitter |
02/19/2002 | CA2149295C Synchronizing signal detection apparatus |
02/19/2002 | CA2119986C Measuring-while-drilling telemetry apparatus and method |
02/14/2002 | WO2002013570A1 Communication terminal, base station device, and radio communication method |
02/14/2002 | WO2002013493A1 Dynamically reconfigurable universal transmitter system |
02/14/2002 | WO2002013476A1 System and method for fast code phase and carrier frequency acquisition in gps receiver |
02/14/2002 | WO2002013473A1 Apparatus for reducing dc offset in a receiver |
02/14/2002 | WO2002013432A1 Phase shift keyed signaling with forward error correction and raman amplification in optical wdm links |
02/14/2002 | WO2002013418A1 Flexible tdma system architecture |
02/14/2002 | WO2002013397A2 Constrained-envelope transmitter and method therefor |
02/14/2002 | WO2002013370A2 Frequency translator using a cordic phase rotator |
02/14/2002 | WO2002013369A1 Frequency modulator using a waveform generator |
02/14/2002 | WO2002013160A2 Electronic device, especially a field device |
02/14/2002 | WO2001043415A3 Method for reducing noise from an asymmetric digital subscriber line modem |
02/14/2002 | US20020018534 Multiplier arrangement, signal modulator and transmitter |
02/14/2002 | US20020018532 Method for detection of pilot tones |
02/14/2002 | US20020018531 Correction of DC-offset of I/Q modulator |
02/14/2002 | US20020018528 Receiver, receiving method, and recording medium which records program for receiving data signals |
02/14/2002 | US20020018527 Dynamic link assignment in a communication system |
02/14/2002 | US20020018518 Generic finger architecture for spread spectrum applications |
02/14/2002 | US20020017950 Demodulation method and demodulator |
02/14/2002 | US20020017948 Demodulation method and apparatus |
02/14/2002 | DE10041068A1 Device for dynamic bit allocation for wired multi-bearer systems has noise variance estimator(s) driving bit loader depending on noise variance estimated from input data value |
02/14/2002 | DE10036682A1 System for level matching between circuit modules has an interface circuit between modules with low pass circuit with potential divider for matching first module's output level to other module |
02/14/2002 | CA2419063A1 Frequency translator using a cordic phase rotator |
02/14/2002 | CA2418855A1 System and method for fast code phase and carrier frequency acquisition in gps receiver |
02/13/2002 | EP1179937A1 Signal transmission apparatus |
02/13/2002 | EP1179936A1 Demodulator for CPFSK signals using a linear approximation of the CPFSK signal |
02/13/2002 | EP1179934A1 Adaptive turbo-equalization |
02/13/2002 | EP1179911A1 Quality assessment method for a radio link in a mobile radio communications system |
02/13/2002 | EP1179904A1 Radio communication apparatus and radio communication method |
02/13/2002 | EP1179903A1 Communication apparatus and communication method |
02/13/2002 | EP1179902A1 Transmitter, receiver, and method of data transmission |