Patents for H04L 27 - Modulated-carrier systems (89,721)
12/2005
12/22/2005US20050281349 Multiple streams using STBC with higher data rates and diversity gain within a wireless local area network
12/22/2005US20050281348 STBC with multiple streams in OFDM for WLAN and error metrics for soft decision with channel information
12/22/2005US20050281346 Method and system of tone ordering for discrete multi-tone systems with tone grouping
12/22/2005US20050281345 Device and method for reducing peaks of a composite signal
12/22/2005US20050281324 Method and apparatus to compensate for receiver frequency error in noise estimation processing
12/22/2005US20050281319 Packet spread-spectrum receiver
12/22/2005US20050281316 Method for transmitting/receiving operation mode information in a broadband wireless access communication system
12/22/2005US20050281292 Methods and systems for communicating using transmitted symbols associated with multiple time durations
12/22/2005US20050281290 Signal acquisition in a wireless communication system
12/22/2005US20050281241 Legacy compatible spatial multiplexing systems and methods
12/22/2005US20050281240 Apparatus and method for efficiently transmitting broadcasting channel utilizing cyclic delay diversity
12/22/2005US20050281239 System and method for signaling modes
12/22/2005US20050281238 Process for obtaining notches in the transmission of signals over the electricity network
12/22/2005US20050281229 Selection between two different coding schemes and corresponding modulation schemes according to the allowable transmission delay of the data
12/22/2005US20050281228 System for soft handover in MIMO OFDMA mobile communication system and method thereof
12/22/2005US20050281221 System and method for allocating an adaptive modulation and coding subchannel in an orthogonal frequency division multiple access communication system with multiple antennas
12/22/2005US20050281189 Method for transmitting/receiving data in mobile communication systems using an OFDMA scheme
12/22/2005US20050281188 Transmitter and receiver for fast frequency hopping based on a cyclic frequency hopping pattern in an orthogonal frequency division multiplexing system
12/22/2005DE102005022684A1 Decision feedback equalization input buffer for memory device, has equalizing controller that modifies variable equalizing control signal in response to timing control signal generated by phase detector
12/22/2005DE102004049019A1 Transmitter for use in radio communication system, has two phase and frequency modulators combined by adders, where output signals of modulators are strengthened by adders over each power amplifier
12/22/2005DE102004026214A1 Verfahren und Vorrichtung zur Übertragung von Daten Method and apparatus for transmitting data
12/22/2005DE102004026148A1 Digital gesteuertes Filter-Tuning für WLAN-Kommunikationsgeräte The digitally controlled filter tuning for wireless communication devices
12/22/2005DE102004025826A1 Verfahren zur Rückbildung einer Bitsequenz aus QPSK- oder QAM-Symbolen Process for the formation of a bit sequence of QPSK or QAM symbols
12/22/2005DE102004025109A1 Vorrichtung und Verfahren zur Präambeldetektion und Rahmensynchronisation bei der Datenpaketübertragung Apparatus and method for preamble and frame synchronization in data packet transmission
12/22/2005DE102004014563A1 Verfahren und Vorrichtung zur verbesserten drahtlosen Datenübertragung Method and apparatus for improved wireless data transmission
12/22/2005CA2741485A1 Frame structures for a wireless communication system with multiple radio technologies
12/22/2005CA2569456A1 Multicarrier modulation system with cyclic delay diversity
12/22/2005CA2569455A1 Transmission of overhead information for broadcast and multicast services in a wireless communication system
12/22/2005CA2569454A1 Coding and modulation for broadcast and multicast services in a wireless communication system
12/22/2005CA2568001A1 Robust underwater communication system
12/21/2005EP1608167A1 Moving picture processing device, information processing device, and program thereof
12/21/2005EP1608122A1 Methods and systems for communicating using transmitted symbols associated with multiple time durations
12/21/2005EP1608121A2 Handover for an ofdm wireless communication system
12/21/2005EP1608120A2 Method for transmitting/receiving data in mobile communication system using an OFDMA scheme
12/21/2005EP1608119A2 System and method for actively terminating a transmission line
12/21/2005EP1608095A2 Digital subscriber line transmission method, apparatus and system employing synchronous processing
12/21/2005EP1608094A1 Ofdm signal transmission method, transmission device, and reception device
12/21/2005EP1608081A2 Apparatus and method for space-frequency block coding/decoding in a communication system
12/21/2005EP1608061A1 Frequency converter using a tunable bandpass filter
12/21/2005EP1606916A2 Multi-antenna communication systems utilizing rf-based and baseband signal weighting and combining
12/21/2005EP1606915A1 Method and apparatus for reducing discrete power spectral density components in a multiband wideband communication system
12/21/2005EP1606903A1 Testing apparatus for digital telecommunication.
12/21/2005EP1606902A1 Bit swapping for different interleaving depths
12/21/2005EP1606892A2 Low noise hybrid circuit for communications systems using time division multiplexing
12/21/2005EP1606874A2 Timing synchronization for m-dpsk channels
12/21/2005EP1425845B1 Harmonic mixer
12/21/2005EP1175055B1 Broadcast satellite digital broadcasting receiver
12/21/2005EP1108318A4 A constrained-envelope digital-communications transmission system and method therefor
12/21/2005EP1084587B1 Fast acquisition of traffic channels for a highly variable data rate
12/21/2005EP1060571A4 METHOD AND APPARATUS FOR CLOCK TIMING RECOVERY IN $g(x)DSL, PARTICULARLY VDSL MODEMS
12/21/2005EP1000492B1 Method and device for the rapid synchronization of two carrier signals
12/21/2005EP0882345B1 Fsk receiver
12/21/2005CN1711736A Apparatus, methods and articles of manufacture for pre-emphasis filtering of a modulated signal
12/21/2005CN1711735A Electromagnetic wave transmitter systems, methods and articles of manufacture
12/21/2005CN1711734A Transmitter and methods of transmission using separate phase and amplitude modulators
12/21/2005CN1711733A Radio communication apparatus and radio communication method
12/21/2005CN1711705A Base station device and adaptive modulation method
12/21/2005CN1710900A Method and device for reducing radio signal dynamic range
12/21/2005CN1710899A Interactive parameter estimation method of multi-input and multi-output system
12/21/2005CN1710898A Modulation and demodulation method for continuous phase signals
12/21/2005CN1710896A Frequency deviation estimation method and apparatus in mobile communication system
12/21/2005CN1233164C Digital broadcast receiver and digital broadcast station selector
12/21/2005CN1233138C Transmitting circuit device
12/21/2005CN1233137C Apparatus and method for keeping frame synchronization in multi-carrier transmission system
12/21/2005CN1233125C Base station apparatus, communication terminal apparatus and communication method
12/21/2005CN1233101C Control device and control method for transmission output of sudden transmitter
12/21/2005CN1233091C Recursive matched filter and matched filtering method
12/20/2005US6977978 Adaptive channel filtration for communications systems
12/20/2005US6977977 Compensation of I/Q gain mismatch in a communications receiver
12/20/2005US6977975 Digital clock recovery PPL
12/20/2005US6977972 Method of hybrid soft/hard decision demodulation of signals with multilevel modulation
12/20/2005US6977968 Transmitting-receiving device comprising a closed cartesian feedback loop
12/20/2005US6977966 Bidirectional optical communications having quick data recovery without first establishing timing and phase lock
12/20/2005US6977965 Phase shift key burst receiver having improved phase resolution and timing and data recovery
12/20/2005US6977884 Transmitting apparatus, receiving apparatus, communication system, transmission method, reception method, and communication method
12/20/2005US6977545 FM signal receiver and wireless communications device using same
12/20/2005CA2320058C Ofdm frame synchronisation and equalisation system
12/20/2005CA2287326C Message transmission system with frequency dividing optical components for parallel processing of optical pulses
12/15/2005WO2005120062A1 Digital broadcasting transmission/reception devices capable of improving a receiving performance an dsignal processing method thereof
12/15/2005WO2005120002A1 Method and apparatus for transmitting uplink fast feedback information in an ofdma communication system
12/15/2005WO2005120001A2 Fully digital transmitter including a digital band-pass sigma-delta modulator
12/15/2005WO2005120000A1 Fourier-transform based linear equalization for mimo cdma downlink
12/15/2005WO2005119953A1 Method for implementing channel estimate in orthogonal frequency division multiplexing (ofdm) system
12/15/2005WO2005119922A2 Modified ieee 802.11a for interoperability between 802.11a devices
12/15/2005WO2005099407A3 Apparatus for and method of developing equalized values from samples of a signal received from a channel
12/15/2005WO2005091612A3 Systems and methods for transmitting an increased amount of data over an analog medium
12/15/2005WO2004100434A9 A transform-based alias cancellation multi-channel tuner
12/15/2005US20050278609 Apparatus and method for erasure detection and soft-decision decoding in cellular system receiver
12/15/2005US20050276359 Gain control for a receiver in a multi-carrier communication system
12/15/2005US20050276358 Wireless LAN receiver with I and Q RF and baseband AGC loops and DC offset cancellation
12/15/2005US20050276355 Method and system for channel estimation in a data transmission system
12/15/2005US20050276354 IQ imbalance compensation
12/15/2005US20050276352 Method and system for establishing an adaptable offset for a receiver
12/15/2005US20050276350 Signal processing architecture for modulation and interpolation
12/15/2005US20050276349 Wireless communication apparatus
12/15/2005US20050276348 Method and apparatus for multi-user transmission
12/15/2005US20050276347 Method and apparatus for preamble training in a multiple antenna communication system
12/15/2005US20050276346 Decoding of a restricted M-of-N code
12/15/2005US20050276345 Continuous phase modulation system and method with added orthogonal signals
12/15/2005US20050276344 Coding scheme for a wireless communication system