Patents
Sitemap › H04 - Electric communication technique › H04L - Transmission of digital information, e.g. telegraphic communication › H04L 27 - Modulated-carrier systems
Patents for H04L 27 - Modulated-carrier systems (89,721)
11/2007
11/21/2007CN101076965A Individual interleaving of data streams for mimo transmission
11/21/2007CN101076964A Channel estimator with spread channel bandwidth
11/21/2007CN101076947A Method and device for evaluating and mending base band frequency error of receiver
11/21/2007CN101076008A Method and apparatus for processing clipped wave
11/21/2007CN101076007A Method for cancelling interference realized in frequency region and used in WCDMA straight-station system
11/21/2007CN101076006A Method and apparatus for synchronizing OFDM symbol
11/21/2007CN101076005A Method for transmitting discrete guide-frequency signal of multi-carrier system
11/21/2007CN101076004A 无线通信装置 The wireless communication device
11/21/2007CN101076003A Method for selecting orthogonal code and method for building up calling therewith
11/21/2007CN101076002A Method and apparatus for acquiring circulating prefix-length information
11/21/2007CN101076001A Method for estimating channel based on orthogonal frequency division multiplexing system
11/21/2007CN101076000A Method for self-adaptable equalizing digital-TV channel
11/21/2007CN101075999A TOA training symbol construction of indoor OFDM system and method and device for estimating TOA
11/21/2007CN101075998A Method for estimating channel based on orthogonal frequency division multiplexing system
11/21/2007CN101075845A Method and apparatus for realizing down synchronization in first search of area
11/21/2007CN101075829A Method for estimating channel of orthogonal frequency-division multiplexing system
11/21/2007CN101075814A Digital receiver system based on special digital medium-frequency structure
11/21/2007CN100350764C Dsrc controller and a method therefor
11/21/2007CN100350753C Method for transmitting radio data between base station and transponder
11/20/2007US7299071 Downlink broadcasting by sequential transmissions from a communication station having an antenna array
11/20/2007US7299022 Carrier detecting circuit and infrared communication device using same
11/20/2007US7299011 Link adaptation process
11/20/2007US7298800 Analog signal control method, analog signal controller, and automatic gain controller
11/20/2007US7298799 All-tap fractionally spaced, serial rake combiner apparatus and method
11/20/2007US7298798 Method and system for decoding block codes
11/20/2007US7298797 Transmitter and receiver provided in wireless communication system using four transmitting antennas
11/20/2007US7298796 Coaxial cable communications systems and methods employing single and multiple sinewave modulation and demodulation techniques
11/20/2007US7298795 Wire communications systems and methods employing single and multiple sinewave modulation and demodulation techniques
11/20/2007US7298794 Method and apparatus for data transmission using multiple transmit antennas
11/20/2007US7298793 Method and apparatus for I/Q mismatch calibration of transmitter
11/20/2007US7298792 Randomly changing pulse polarity and phase in an UWB signal for power spectrum density shaping
11/20/2007US7298789 Polarization modulation with amplitude differential
11/20/2007US7298788 Wireless communication system and method
11/20/2007US7298787 System, and associated method, for facilitating broadband multi-carrier transmission
11/20/2007US7298786 VSB transmission system
11/20/2007US7298785 Multicarrier demodulation method and apparatus, and multicarrier modulation method and apparatus
11/20/2007US7298784 Reception method, reception apparatus and wireless transmission system using adaptive modulation scheme
11/20/2007US7298773 Apparatus and method for reporting service load to mobile station in mobile telecommunication system
11/20/2007US7298722 Radio transmission apparatus and radio transmission method
11/20/2007US7298692 Radio base station apparatus and communication terminal
11/20/2007US7298426 Television tuner having variable gain reduction
11/20/2007US7298420 Digital TV receiver
11/20/2007US7298290 DSRC controller and a method therefor
11/20/2007US7298202 FSK demodulator
11/20/2007CA2350916C Bit allocation among carriers in multicarrier communications
11/20/2007CA2184437C Trellis demapper of a convolutional decoder for decoding pragmatic trellis codes suitable for use in a multi-channel receiver of satellite, terrestrial and cable transmitted fec compressed digital television data
11/15/2007WO2007131090A1 Methods and apparatus to support scalability in a multicarrier network
11/15/2007WO2007130861A2 Power management in digital receivers
11/15/2007WO2007130021A1 Discrete multitone (dmt) communications without using a cyclic prefix
11/15/2007WO2007128862A1 Method and arrangement for optimizing efficiency of a power amplifier
11/15/2007WO2007128233A1 Interference estimating method, resource allocating method in fdma system and apparatus thereof
11/15/2007WO2007069199A3 Method and a system for estimating a symbol time error in a broadband transmission system
11/15/2007WO2006118726A3 Method and apparatus for constant envelope orthogonal frequency division multiplexing in a wireless system
11/15/2007WO2006107466A3 Dc offset correction system for a receiver with baseband gain control
11/15/2007WO2006102403A3 Orthogonal frequency division multiplexing code division multiple access system
11/15/2007US20070264028 Optical transmitter
11/15/2007US20070263753 Viterbi decoding method and viterbi decoder
11/15/2007US20070263752 Delay-doppler channel response demodulation method and apparatus
11/15/2007US20070263751 Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying(QPSK) or offset quaternary phase shift keying (OQPSK)
11/15/2007US20070263749 Transmitter for outputting differential signals of different voltage levels
11/15/2007US20070263748 Common antenna array using baseband adaptive beamforming and digital IF conversion
11/15/2007US20070263746 Feedback frame structure for subspace tracking precoding
11/15/2007US20070263740 HARQ method in a mobile communication system
11/15/2007US20070263737 Transmitting Apparatus, Receiving Apparatus, Communication System and Communication Method
11/15/2007US20070263736 Multicarrier Communication Apparatus and Multicarrier Communication Method
11/15/2007US20070263735 Wireless Communication Methods, Systems, and Signal Structures
11/15/2007US20070263734 Wireless communication system and wireless communication method
11/15/2007US20070263733 Method and system for transmitting data of a data type to be transmitted cyclically and of a data type which can be transmitted acyclically via a common transmission channel
11/15/2007US20070263665 Systems for contention-based bandwidth requests in orthogonal frequency division multiplexing systems
11/15/2007DE102006021831A1 Funkübertragungssystem und Verfahren für dessen Betrieb Radio transmission system and method for its operation
11/15/2007CA2644657A1 Spread spectrum ask/ook transmitter
11/14/2007EP1855434A1 Resource allocation for OFDM transmission with subcarriers partitioning and bilateral cell subcarriers exchange
11/14/2007EP1855433A2 Radio transmission method, radio reception method, radio transmission apparatus and radio reception apparatus
11/14/2007EP1855432A1 Modulation circuit and electronic device
11/14/2007EP1855412A2 Signal quality measuring apparatus for WiBro system and the method thereof
11/14/2007EP1855404A1 Receiver apparatus
11/14/2007EP1855386A2 Adaptive control apparatus
11/14/2007EP1855385A2 Adaptive control apparatus
11/14/2007EP1854292A2 Apparatus, systems and methods for producing coherent symbols in a single frequency network
11/14/2007EP1854284A2 Apparatus, systems and methods for providing enhancements to atsc networks using synchronous vestigial sideband (vsb) frame slicing
11/14/2007EP1854259A1 Iq-modulator pre-distortion
11/14/2007EP1854258A1 Method and apparatus for providing dynamic selection of carriers
11/14/2007EP1854205A2 Wireless communications device providing enhanced block equalization and related methods
11/14/2007EP1702446B1 Bandwidth signalling
11/14/2007EP1684466B1 Power saving and handling broadcast as unicast traffic in a WLAN
11/14/2007EP1658679A4 Method and system for communication in a multiple access network
11/14/2007EP1425866B1 Generation of a sub-carrier modulated optical signal through electro-optical conversion of a Manchester encoded signal
11/14/2007EP1302044B1 Receiver circuit
11/14/2007EP1072133B1 Self-optimizing channel equalization and detection
11/14/2007CN101073234A Transmitter and frequency hopping method of the same
11/14/2007CN101073233A 通信设备识别 Communications equipment identification
11/14/2007CN101072220A Radical basis function neural network predistortion method for adaptive power amplifier
11/14/2007CN101072219A Resource allocation for OFDM transmission with subcarriers partitioning and bilateral cell subcarriers exchange
11/14/2007CN101072218A FFT/IFFI paired processing system, method and its device and method
11/14/2007CN101072217A System and method for providing 3-dimensional joint interleaver and circulation transmissions
11/14/2007CN101072216A Resource distribution and transceiving method and device for orthogonal frequency division multi address accessing system
11/14/2007CN101072215A Bit synchronizing method for multi-input multi-output system
11/14/2007CN101072214A Method for realizing adaptive modulation for orthogonal frequency division multiplexing system
11/14/2007CN101072082A Transmission method
11/14/2007CN100349447C Data balancing method for meteor trail communication
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