Patents for H04L 27 - Modulated-carrier systems (89,721)
12/2006
12/13/2006EP1732258A1 Device and method for judging communication quality and program used for the judgment
12/13/2006EP1730916A1 System and method for power control in wireless communiction systems
12/13/2006EP1730915A1 A method of and an apparatus for effecting a smooth transition between adjacent symbol bursts transmitted in different modulation formats
12/13/2006EP1730914A1 Methods and apparatus for generating and processing wideband signals having reduced discrete power spectral density components
12/13/2006EP1730874A1 System and method for transmission and reception of qam signals at low signal to noise ratio
12/13/2006EP1730873A1 Methods and apparatus for flexible spectrum allocation in communication systems
12/13/2006EP1730867A2 SYSTEM AND METHOD FOR ENHANCING NEAR VERTICAL INCIDENCE SKYWAVE ("NVIS”) COMMUNICATION USING SPACE-TIME CODING
12/13/2006EP1730864A1 Wireless comunication methods, systems, and signal structures
12/13/2006EP1730863A1 Adaptive scheduling of voice traffic in a multi-carrier communication environment
12/13/2006EP1344341B1 Encoded qam
12/13/2006EP1311095B1 Method for spread-spectrum digital communication by golay complementary sequence modulation
12/13/2006CN1879426A Methods and apparatus for multi-carrier, multi-cell wireless communication networks
12/13/2006CN1879377A Frequency shifting of WCDMA carriers for variable carrier separation
12/13/2006CN1879376A Method for the reconstruction of zero crossing information of noisy angle-modulated signals following limiter-discriminator signal processing
12/13/2006CN1879375A Modulating apparatus, mobile communication system, modulating method, and communication method
12/13/2006CN1879374A Repetition coding for a wireless system
12/13/2006CN1879373A Apparatus for determining a frequency offset error and receiver based thereon
12/13/2006CN1879337A Receiving apparatus
12/13/2006CN1879321A Downlink signal configuring method and device in mobile communication system, and synchronization and cell searching method and device using the same
12/13/2006CN1879304A Phase-locked loop bandwidth calibration circuit and method thereof
12/13/2006CN1878386A Cell recognition method for OFDMA cellular system
12/13/2006CN1878163A Multi-service transmission platform equipment managing system
12/13/2006CN1878159A A method for transmitting symbols through at least a channel in a telecommunication system
12/13/2006CN1878158A Cell recognition method for OFDMA cellular system
12/13/2006CN1878157A Method for realizing OFDM system synchronization using circulating prefix
12/13/2006CN1878156A Communication method applying special coherent modulation/demodulation carrier signal
12/13/2006CN1878155A Amplitude adjusting system for full-duplex multi-level pulse wave and blind activation receiver
12/13/2006CN1878154A Single carrier transmitter with field inserted field synchronizing information and method thereof
12/13/2006CN1878153A Feedback equalizer for a communications receiver
12/13/2006CN1878085A State detection method based on main and backup Ethernet interface
12/13/2006CN1878053A Multiplexing method for time-frequency resource in radio communication system
12/13/2006CN1878028A Carrier track loop adaptive for digital television terrestrial broadcasting
12/13/2006CN1290361C Two-stage up-conversion modulator
12/13/2006CN1290348C Wireless receiving apparatus, method capable of switching modulation mode
12/13/2006CN1290299C Method and apparatus for decision directed demodulation using antenna arrays and spatial processing
12/13/2006CN1290298C Transmitter and receiver for orthogonal frequency division multiplexing signal
12/13/2006CN1290285C Communication blocking device and communication blocking method
12/13/2006CN1290281C Apparatus and method for coding/decoding of STTD in OFDM mobile communication system
12/13/2006CN1290280C Method of self eliminating interference between self adaptive carriers and receiving and transmitting machine
12/13/2006CN1290279C Improved PTS method
12/13/2006CN1290276C Method and appts. for achieving 180 degree phase invariant transmission in PCM modem system
12/13/2006CN1290268C Transmission circuit of a radio-frequency signal
12/13/2006CN1290254C Process and device for detecting and processing signal waves
12/13/2006CN1290037C OFDM modulation with reduced DFT (discrete Fourier transform)
12/12/2006US7149953 Efficient LDPC code decoding with new minus operator in a finite precision radix system
12/12/2006US7149491 Radio reception apparatus symbol timing control method, and symbol timing control program
12/12/2006US7149490 Method for transmitting signals in a communication device
12/12/2006US7149485 Method and device for processing mismatches between two quadrature paths of a chain of a reception adapted for example to the reception of a signal modulated according to a modulation of the OFDM type
12/12/2006US7149482 Compensation of filters in radio transmitters
12/12/2006US7149434 System and method for optical communication
12/12/2006US7149312 Method and device to retrieve RDS information
12/12/2006US7149268 Digital subscriber line driver
12/12/2006US7149266 Signal receiver and method of compensating frequency offset
12/12/2006US7149265 Timing recovery loop with non-integer length
12/12/2006US7149263 AGC method and circuit for digital radio receiver
12/12/2006US7149261 Image reject circuit using sigma-delta conversion
12/12/2006US7149260 Carrier recovery apparatus of VSB receiver and a method of recovering carrier using the same
12/12/2006US7149258 Method and apparatus for estimation of phase offset between communication channels
12/12/2006US7149256 Multilevel pulse position modulation for efficient fiber optic communication
12/12/2006US7149253 Wireless communication
12/12/2006US7149252 Communicating data using wideband communications
12/12/2006US7149244 ADSL encoder and decoder
12/12/2006US7149199 Multi-dimensional orthogonal resource hopping multiplexing communications method and apparatus
12/12/2006US7149192 Base station implementing a physical layer automatic repeat request
12/12/2006US7148932 Communication system in digital television
12/12/2006US7148743 Demodulation device for reacquiring a modulated signal if reception is interrupted
12/07/2006WO2006130465A2 System and method for enlarging amplitude minima in a linear modulation signal
12/07/2006WO2006129666A1 Digital signal transmitting system, receiving apparatus and receiving method
12/07/2006WO2006129166A1 Method and apparatus for generating pilot sequences to reduce peak-to-average power ratio
12/07/2006WO2006129141A1 Tonal precoding in multi-user vectored dsl transmission
12/07/2006WO2006128490A1 A method and apparatus for scaling parameter estimation in parametric generalized rake receivers
12/07/2006WO2006128323A1 A method for implementing the rate change of the data of transmission convergence layer in adsl system and the apparatus thereof
12/07/2006WO2006069318A3 Determination if a share channel (e:g: ssch) can be utilized for transmission
12/07/2006WO2005101655A8 Advanced digital receiver
12/07/2006WO2005039198A8 Delay-induced scattering with phase randomization and partitioned frequency hopping
12/07/2006WO2005036753A3 Error-correcting multi-stage code generator and decoder for communication systems having single transmitters or multiple transmitters
12/07/2006US20060276145 Method to minimize compatibility error in hierarchical modulation using variable phase
12/07/2006US20060274865 Channel-dependent de-sensing of received signals
12/07/2006US20060274864 Frequency control device and information reproduction apparatus
12/07/2006US20060274863 Method and device for determining the occupancy of a transmission channel
12/07/2006US20060274860 Wireless communications apparatus
12/07/2006US20060274859 Analog-to-digital converter compensation system and method
12/07/2006US20060274858 Sample rate conversion module and applications thereof
12/07/2006US20060274857 RFID receiver with digital down conversion
12/07/2006US20060274856 System and method for communicating confidential messages
12/07/2006US20060274855 Method to enable single frequency network optimization
12/07/2006US20060274854 Radio receiving apparatus, mobile station appartus, base station apparatus, and radio receiving method
12/07/2006US20060274853 Data Transmission System for Computer Tomographs
12/07/2006US20060274852 Modified preamble for programmable transmitter
12/07/2006US20060274851 System and method for enlarging amplitude minima in a linear modulation signal
12/07/2006US20060274850 Digital data transmitting apparatus
12/07/2006US20060274846 Differential multiple-length transmit and reception diversity
12/07/2006US20060274844 Frequency-independent spatial processing for wideband MISO and MIMO systems
12/07/2006US20060274843 Apparatus and method for transmitting/receiving preamble signal in a wireless communication system
12/07/2006US20060274838 Agile RF band OFDM spread spectrum and cross-correlated systems
12/07/2006US20060274837 Receiver circuit, signal transmission system, and receiver circuit device used for high- speed signal transmission
12/07/2006US20060274825 Tonal precoding
12/07/2006US20060274823 Parameter estimator with dynamically variable integration time
12/07/2006US20060274820 Receiver for wireless communication network with extended range
12/07/2006US20060274717 Alternative frequency strategy for DRM