Patents for H04L 27 - Modulated-carrier systems (89,721)
08/2008
08/27/2008CN101252557A Method and apparatus for receiving broadcast signal
08/27/2008CN101252555A Time frequency optimum channel estimation method in OFDM mobile communication system
08/27/2008CN101252384A Star loading exchanging method based on OFDM and cross layer design
08/27/2008CN101252364A New civil aviation ground and air communication twin channel constant module interference suppressing method and system
08/27/2008CN100414941C Adaptive data processing scheme based on delay forecast
08/27/2008CN100414940C Communication terminal apparatus and base station apparatus
08/27/2008CN100414860C Information channel balancer for quadrature frequency division multiplexing receiver and method thereof
08/27/2008CN100414856C Radio communication method and radio communication apparatus using adaptive modulation system
08/27/2008CN100414850C Transmission diversity system and method
08/27/2008CN100414843C Burst mode receiving device with offset compensation function and its data reconstruction method
08/27/2008CN100414835C Carrier detecting circuit and infrared communication device using same
08/27/2008CA2585905A1 Apparatus, and associated method for lengthening data communicated in a radio communication system with padding bytes
08/26/2008US7418651 File download and streaming system
08/26/2008US7418246 Physical layer unit for transmitting or receiving various signals, wireless LAN system including the same, and wireless LAN method using the wireless LAN system
08/26/2008US7418070 Signal generator
08/26/2008US7418064 Systems and methods for hierarchically demodulating and decoding a data signal using a pilot signal and an additional signal
08/26/2008US7418063 DTX detection method with high success probability
08/26/2008US7418062 Image reject circuit using sigma-delta conversion
08/26/2008US7418061 Receiver having decisional feedback equalizer with remodulation and related methods
08/26/2008US7418060 Improving hierarchical 8PSK performance
08/26/2008US7418059 Digital broadcast signal reproducing system and method
08/26/2008US7418054 Transmitter adjustment based on transmission statistics
08/26/2008US7418052 Iterative turbo decision feedback receiver
08/26/2008US7418051 Nonsystematic repeat-accumulate codes for encoding and decoding information in a communication system
08/26/2008US7418050 MIMO modulation in a wireless network with at least one degenerate node
08/26/2008US7418049 Method and apparatus for decoding baseband orthogonal frequency division multiplex signals
08/26/2008US7418048 Tone ordered discrete multitone interleaver
08/26/2008US7418047 Communication apparatus using a plurality of modulation schemes and transmission apparatus composing such communication apparatus
08/26/2008US7418046 Pilot transmission and channel estimation for multiple transmitters
08/26/2008US7418044 Radio communication system, radio communication method, radio base station, and radio terminal station
08/26/2008US7418043 Software adaptable high performance multicarrier transmission protocol
08/26/2008US7418042 Repetition coding for a wireless system
08/26/2008US7418041 Transmitting/receiving apparatus and method for reducing PAPR in an OFDM mobile communication system
08/26/2008US7418040 Method and apparatus for determining a timing offset for processing a multi-carrier signal
08/26/2008US7418039 Adaptive communication
08/26/2008US7418030 Flexible initialization method for DSL communication systems
08/26/2008US7418028 Agile RF band OFDM spread spectrum and cross-correlated systems
08/26/2008US7418026 Receiver for a multi-carrier modulated symbol
08/26/2008US7417972 Method and system for transmitting data and for determining the transmission properties in a radio communications system
08/26/2008US7417964 Transmission apparatus and method for use in mobile communication system based on orthogonal frequency division multiplexing scheme
08/26/2008US7417945 Transmitter and receiver for use with an orthogonal frequency division multiplexing system
08/26/2008US7417944 Method for orderwire modulation
08/26/2008US7417920 Reciprocating pulser for mud pulse telemetry
08/26/2008US7417496 Demodulator circuit of RFID system
08/21/2008WO2008100188A1 Channel measurements on combined pilot signala in multi- carrier systems
08/21/2008WO2008100047A1 Ofdm transmitting and receiving systems and methods thereof
08/21/2008WO2008100001A1 Method of data transmission with iterative multi-user detection and apparatus using the same
08/21/2008WO2008099807A1 Base station device, mobile station, radio communication system, and communication control method
08/21/2008WO2008099762A1 Orthogonal modulator
08/21/2008WO2008099724A1 Linc transmission circuit and communication device using the same
08/21/2008WO2008082882A3 Method and device for generating constant envelope modulation using a quadrature modulator
08/21/2008WO2008070323A3 System and method for symbol rate estimation using vector velocity
08/21/2008WO2008067344A3 Automatic gain control method and apparatus for wireless communication systems
08/21/2008WO2008033985A3 Beacon assisted cell search in a wireless communication system
08/21/2008WO2008026178A3 Frequency dependent i/q imbalance estimation
08/21/2008WO2008024938A3 Acquisition in frequency division multiple access systems
08/21/2008WO2007147130A3 Programmable transmitter architecture for non-constant and constant envelope modulation
08/21/2008WO2007066846A3 Adaptive transmission device using limited feedback information in a mobile communication system, and a method thereof
08/21/2008US20080200204 Systems and methods for back-off and clipping control in wireless communication systems
08/21/2008US20080199191 Maximum likelihood sequence estimation for high spectral efficiency optical communication systems
08/21/2008US20080198954 Channel equalization using frequency and phase compensation
08/21/2008US20080198953 Decoding Method and Decoding Apparatus
08/21/2008US20080198952 Equalising Structure And Method With Maximum Likelihood Detection
08/21/2008US20080198951 Data demodulation method and apparatus
08/21/2008US20080198950 Apparatus and method for detecting abnormal sign
08/21/2008US20080198946 Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same
08/21/2008US20080198942 Long echo detection and channel estimation for ofdm systems
08/21/2008US20080198941 Low-complexity scalable architecture for concatenation-assisted symbol-level combining
08/21/2008US20080198939 Transmitter circuit and radio transmission apparatus for transmitting data via radio by using impulses
08/21/2008US20080198915 System and method of equalization of high speed signals
08/21/2008US20080198774 Superframe Having Increased Data Transmission Efficiency
08/21/2008US20080197982 Rfid system with low complexity implementation and pallet coding error correction
08/21/2008CA2678024A1 Base station apparatus, mobile station, radio communication system, and communication control method
08/20/2008EP1959628A2 Apparatus and method for initial fractional frequency offset estimation in a broadband wireless access communication system
08/20/2008EP1959627A2 Method and apparatus for transmitting and receiving control information in a single carrier FDMA system
08/20/2008EP1959626A1 Receiver apparatus, transmitter apparatus and communication system for detecting a narrowband interference in a multi-carrier receiver signal
08/20/2008EP1959625A1 Receiver apparatus for detecting narrowband interference in a multi-carrier receive signal
08/20/2008EP1959624A1 Demodulator circuit
08/20/2008EP1959593A2 Apparatus and method of transmitting and receiving digital broadcasting
08/20/2008EP1959580A1 Signal extraction circuit
08/20/2008EP1958412A2 Apparatus and methods for timing recovery in a wireless transceiver
08/20/2008EP1958411A2 Windowed orthogonal frequency division multiplexing for spectrum agile radios
08/20/2008EP1958410A2 Ofdm cognitive radio with zero overhead signalling of deleted subcarriers frequencies
08/20/2008EP1958409A1 Apparatus for estimating time and frequency offset using antenna diversity in ofdm communication system and method thereof
08/20/2008EP1958408A2 Apparatus and method for transmitting data using a plurality of carriers
08/20/2008EP1958407A1 Method for underwater transmission of data packets
08/20/2008EP1958406A1 Method and apparatus for determining frequency offset in a receiver
08/20/2008EP1958403A2 Method and system of channel estimation
08/20/2008EP1958345A1 Scheduling in a wireless multi-hop relay network
08/20/2008EP1958340A2 Swept notch uwb transmitter
08/20/2008EP1958328A1 Signal output circuit, communication apparatus and signal output control method
08/20/2008EP1723759B1 Peak reduction in ofdm using clipping and modified constellations
08/20/2008EP1698132B1 Wireless internet terminal and packet transmission method for improving quality of service
08/20/2008EP1665533B1 Digital rf transceiver with multiple imaging modes
08/20/2008EP1665114A4 Systems and methods for amplifying a transmit signal in a rfid interrogator
08/20/2008EP1661350A4 Simplified scrambling scheme for satellite broadcasting systems
08/20/2008EP1599983B1 Method, system and apparatus for acquiring a received impulse radio signal
08/20/2008EP1436915B1 Physical layer automatic repeat request
08/20/2008EP1380106B1 Tunable matching circuit
08/20/2008EP1260049B1 A modulation scheme for fdd/tdd transceivers