Patents for H04L 27 - Modulated-carrier systems (89,721) |
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12/27/2002 | WO2002067524A3 Pre-distortion in multiple-carrier transmitters |
12/27/2002 | WO2002063841A3 Physical layer interface for a local communication system |
12/27/2002 | WO2002011343A3 Multi-carrier transmission method using symbol redundancy and corresponding apparatus |
12/27/2002 | WO2001097420A3 Multiplexing digital communication system |
12/27/2002 | CA2416960A1 Direct digital synthesis in a qam demodulator |
12/26/2002 | US20020199147 Apparatus and method for transmitting and receiving data in a CDMA mobile communication system |
12/26/2002 | US20020197966 Method of clipping signal amplitudes in a modulation system |
12/26/2002 | US20020196936 System for generating pseudorandom sequences |
12/26/2002 | US20020196881 Receiver and method for initial synchronization of a receiver with the carrier frequency of a desired channel |
12/26/2002 | US20020196880 Methods and apparatus for implementing multi-tone receivers |
12/26/2002 | US20020196874 Gain control apparatus and modem apparatus provided with gain control apparatus |
12/26/2002 | US20020196865 Cycle-by-cycle synchronous waveform shaping circuits based on time-domain superpostion and convolution |
12/26/2002 | US20020196864 Hybrid polar modulator differential phase cartesian feedback correction circuit for power amplifier linearization |
12/26/2002 | US20020196863 Peak suppression method and data transmission apparatus |
12/26/2002 | US20020196861 Systems and methods for implementing receiver transparent Q-mode |
12/26/2002 | US20020196860 Orthogonal frequency division multiplex signal demodulator circuit having simple circuit configuration |
12/26/2002 | US20020196844 Adaptive equalizer system for short burst modems and link hopping radio networks |
12/26/2002 | US20020196839 Method for peak power reduction in spread spectrum communications systems |
12/26/2002 | US20020196813 Efficient framing of overhead channel for ADSL modems |
12/26/2002 | US20020196734 OFDM transmission system transceiver and method |
12/26/2002 | US20020196733 Carrier phase recovery of multi-rate signals |
12/26/2002 | US20020196731 Method and apparatus for time and frequency synchronization of OFDM communication systems |
12/26/2002 | US20020196510 Method and system for decoding multilevel signals |
12/26/2002 | US20020196065 Method and apparatus for generating pulses from analog waveforms |
12/25/2002 | CN1387718A Method of clipping signal amplitudes in modulation system |
12/25/2002 | CN1387717A Radio transmitter architecture comprising PLL and delta-sigma modulator |
12/25/2002 | CN1387712A Method and apparats for communicating call |
12/25/2002 | CN1387700A Method and apparatus for adaptive bit resolution in digital receiver and digital transmitter |
12/25/2002 | CN1387348A RF modem with phase-locked loop circuit and by frequency shift keying technique |
12/25/2002 | CN1097388C Digital VSB detector for high resolution TV receiver |
12/25/2002 | CN1097374C Digital radio communication equipment |
12/25/2002 | CN1097373C Digital data processor and method for converting transmission character to multilevel data |
12/24/2002 | US6498937 Asymmetric bandwidth wireless communication techniques |
12/24/2002 | US6498823 Variable rate modulator |
12/24/2002 | US6498822 Frequency and timing synchronization circuit making use of a chirp signal |
12/24/2002 | US6498818 Method and system for transmitting information by means of phase modulation |
12/24/2002 | US6498817 Circuit for processing data signals |
12/24/2002 | US6498808 Seamless rate adaptive multicarrier modulation system and protocols |
12/24/2002 | US6498807 Method and apparatus for transmitting data from a plurality of users in a multi-tone modem communications system |
12/24/2002 | US6498805 Apparatus and method for estimating channel phase using channel symbol reliability data |
12/24/2002 | US6498627 Use of wideband DTV overlay signals for brevity signaling and public safety |
12/24/2002 | US6498568 Pipeline communication system |
12/24/2002 | CA2308621C Afc device and method of controlling reception frequency in a dual-mode terminal |
12/21/2002 | CA2384234A1 Long haul transmission in a dispersion managed optical communication system |
12/19/2002 | WO2002102098A1 Multi-detection of heartbeat to reduce error probability |
12/19/2002 | WO2002102095A1 Transmittal of heartbeat signal at a lower level than heartbeat request |
12/19/2002 | WO2002102008A1 Blind detection |
12/19/2002 | WO2002102007A1 Method and apparatus for rearranging codeword sequence in a communication system |
12/19/2002 | WO2002101946A1 Reducing effects of self-created interference on broadband reception |
12/19/2002 | WO2002101940A2 Receiver having decision feedback equalizer with remodulation |
12/19/2002 | WO2002101922A1 System and method for performing ranging in a cable modem system |
12/19/2002 | WO2001095578A3 Method for verifying the availability of a signal component and device for carrying out said method |
12/19/2002 | US20020193090 System and method for dynamic sampling rate adjustment to minimize power consumption in wideband radios |
12/19/2002 | US20020193083 Frequency conversion circuit and transmitter |
12/19/2002 | US20020193070 Radio transmitting apparatus and radio transmitting method |
12/19/2002 | US20020191722 Data communication speed control system, transmitter apparatus and receiver apparatus |
12/19/2002 | US20020191720 Circuit configuration for the offset compensation of a signal |
12/19/2002 | US20020191717 Automatic gain control circuit and automatic gain control method |
12/19/2002 | US20020191716 Error generation for adaptive equalizer |
12/19/2002 | US20020191713 Modulation system having on-line IQ calibration |
12/19/2002 | US20020191712 Packet identification mechanism at the transmitter and receiver for an enhanced ATSC 8-VSB system |
12/19/2002 | US20020191709 Method for peak power reduction in multiple carrier communications systems |
12/19/2002 | US20020191705 Method and apparatus for peak prediction enabling peak-to-average ratio (PAR) reduction |
12/19/2002 | US20020191703 Method and apparatus for utilizing channel state information in a wireless communication system |
12/19/2002 | US20020191684 System and method for performing ranging in a cable modem system |
12/19/2002 | US20020191680 Reception method including generating complex four-phase sequences for CDMA communication |
12/19/2002 | US20020191630 Sparse channel estimation for orthogonal frequency division multiplexed signals |
12/19/2002 | US20020191578 Method for improving receivers for the 3GPP standard by employing coded control-symbols as additional pilot symbols |
12/19/2002 | US20020191569 Multi-dimensional orthogonal resource hopping multiplexing communications method and apparatus |
12/19/2002 | US20020191535 OFDM signal communication system, OFDM signal transmitting device and OFDM signal receiving device |
12/19/2002 | US20020191534 Techniques for communicating information using prime-frequency waveform mapping |
12/19/2002 | US20020191533 System and method for modulation of non-data bearing carriers in a multi-carrier modulation system |
12/19/2002 | US20020191508 Information record disc and information recording apparatus |
12/19/2002 | US20020190807 Demodulator and demodulation method of DQPSK system with reduced circuit scale |
12/19/2002 | US20020190803 AFC circuit |
12/19/2002 | US20020190786 Communication device, communication method, program, and storage medium |
12/19/2002 | CA2389784A1 System and procedure for transmitting an audio or voice signal |
12/18/2002 | EP1267540A1 Refined subband SNR estimation in an asymmetric multicarrier system accounting for aliasing effects during training phase |
12/18/2002 | EP1267539A1 Symbol synchronization in multicarrier receivers |
12/18/2002 | EP1267538A1 Symbol synchronization in multicarrier receivers |
12/18/2002 | EP1267537A2 An OFDM digital broadcasting system, and a transmission system and a receiving system used for digital broadcasting |
12/18/2002 | EP1267536A1 Multicarrier receiver with detection of the transmission mode and length of the guard interval |
12/18/2002 | EP1267535A1 Method and apparatus for symbol synchronisation in a multicarrier receiver |
12/18/2002 | EP1267534A1 Digital modulation system, radio communication system, radio communication device |
12/18/2002 | EP1267513A2 Multiplexing of multicarrier signals |
12/18/2002 | EP1267508A1 Encoding method for multicarrier transmission and encoder using the same |
12/18/2002 | EP1266499A2 Carrier tracking loop for direct sequence spread spectrum systems |
12/18/2002 | EP1266498A1 Device and method for adjusting input gain for multiple signal formats in a data network |
12/18/2002 | EP1266470A1 Method and apparatus for mobile platform reception and synchronization in direct digital satellite broadcast system |
12/18/2002 | EP1266447A2 Assembly and method for compensating the offset of a mixer |
12/18/2002 | EP1074092B1 Method for neutralising a transmitter tube |
12/18/2002 | EP0920758B1 Improvements in, or relating to synchronisation |
12/18/2002 | CN1386388A Communication terminal, base station device, and radio communication method |
12/18/2002 | CN1386354A Decision directed frequency offset estimation |
12/18/2002 | CN1386353A Channel presuming system and channel presuming method |
12/18/2002 | CN1386352A Radio communication receiver |
12/18/2002 | CN1386351A Communication terminal apparatus, base station apparatus, and communication method |
12/18/2002 | CN1386350A Radio communication apparatus and radio communication method |
12/18/2002 | CN1386343A Multicarrier CDMA communication device |
12/18/2002 | CN1386334A Radio receiving device and radio receiving method |