H04L 27 - Modulated-carrier systems

Patents for H04L 27 - Modulated-carrier systems (89,721)
11/2006
11/08/2006	CN1284343C Multi-carrier transmission system, transmission unit and transmission method thereof
11/08/2006	CN1284342C Frequency error estimating receiver, and frequency error estimating method
11/08/2006	CN1284341C Timed regenerator, demodulator using timed regenerator and time regeneration method
11/08/2006	CN1284340C BS digital broadcasting receiver
11/08/2006	CN1284339C Method and device for demodulating signal transmitted by multi carrier
11/08/2006	CN1284317C OFDM transmitting and receiving apparatus
11/08/2006	CN1284316C Orthogonal frequency division multiplex modem circuit
11/08/2006	CN1284307C Communication system for CDMA
11/08/2006	CN1284305C High data rate spread spectrum transceiver and associated methods
11/07/2006	US7133657 Channel calibrator for use with a quadrature mixing receiver and a method of operation thereof
11/07/2006	US7133647 Chiprate correction in digital transceivers
11/07/2006	US7133521 Method and apparatus for DTMF detection and voice mixing in the CELP parameter domain
11/07/2006	US7133481 Synchronization detection apparatus
11/07/2006	US7133480 Method and apparatus for processing digitally sampled signals at a resolution finer than that of a sampling clock
11/07/2006	US7133479 Frequency synchronization apparatus and method for OFDM systems
11/07/2006	US7133476 Apparatus and methods for suppression of interference among disparately-modulated signals
11/07/2006	US7133474 Method and system for timing recovery and delay spread estimation in a communication system
11/07/2006	US7133472 High-speed turbo decoder
11/07/2006	US7133471 Demodulation of multiple signals
11/07/2006	US7133470 Receiver with offset compensation
11/07/2006	US7133469 Quadrature demodulator
11/07/2006	US7133468 Concurrent FM signal receiver
11/07/2006	US7133467 Demodulation apparatus and demodulation method
11/07/2006	US7133463 Linear transformation circuits
11/07/2006	US7133462 Method and apparatus for determining modulation scheme for retransmission in a communication system
11/07/2006	US7133461 Stream transmission method and device
11/07/2006	US7133460 Apparatus and method for determining a data rate of packet data in a mobile communication system
11/07/2006	US7133458 Signal component demultiplexing apparatus, filter apparatus, receiving apparatus, communication apparatus, and communication method
11/07/2006	US7133457 Joint timing recovery for multiple signal channels
11/07/2006	US7133456 Modulation and demodulation format selectable system
11/07/2006	US7133444 Combined equalization for DMT-based modem receiver
11/07/2006	US7133443 Multi-tone transmission
11/07/2006	US7133441 High speed access system over copper cable plant
11/07/2006	US7133438 Acquisition method and apparatus for carrying out the method
11/07/2006	US7133437 Pilot interpolation for a gated pilot with compensation for induced phase changes
11/07/2006	US7133434 Making measurements on parallel frequencies in a radio communications device
11/07/2006	US7133388 Method for balancing the ratio EB/I in a service multiplexing CDMA system and telecommunication systems using same
11/07/2006	US7133354 Synchronization techniques for a wireless system
11/07/2006	US7133352 Bi-directional communication channel
11/07/2006	CA2338471C Base station identification in orthogonal frequency division multiplexing based spread spectrum multiple access systems
11/07/2006	CA2317968C Automatic modulation type discrimination apparatus and automatic modulation type discrimination method capable of discriminating plural kinds of modulation types
11/06/2006	CA2545950A1 Iterative non-coherent cpm decoder
11/02/2006	WO2006116523A1 Continuous-time equalizer
11/02/2006	WO2006116140A2 Method and system for hierarchical modulation and demodulation for digital radio
11/02/2006	WO2006116134A2 Method and apparatus for compressive imaging device
11/02/2006	WO2006114845A1 Wireless device using same carrier wave for transmission and reception
11/02/2006	WO2006114126A1 Repetition-dependent mapping for higher order modulation schemes
11/02/2006	WO2006114030A1 A method for increasing uplink system capacity of multiple input multiple output system in wcdma and apparatus thereof
11/02/2006	WO2006083396A3 Fractional-n offset phase locked loop
11/02/2006	WO2006068694A8 Adjustable dual-band link
11/02/2006	WO2006062299A3 Subcarrier allocation apparatus and method, subcarrier de-allocation apparatus and method in ofdm system
11/02/2006	WO2006059829A3 Method for automatic gain control before initial synchronization in ofdm system and apparatus thereof
11/02/2006	WO2006019611A3 A transmit system employing an antenna and balanced amplifier architecture which provides power amplifier load balancing independent of single or dual signal operation of the transmitter
11/02/2006	WO2005072299A3 Periodic calibration for communication channels by drift tracking
11/02/2006	US20060246916 Radio communication apparatus and subcarrier assignment method
11/02/2006	US20060246865 Frequency offset estimator
11/02/2006	US20060245525 Power control for a digital broadcast receiving terminal
11/02/2006	US20060245524 Radio receiver with a demodulation unit for generating softbits
11/02/2006	US20060245522 Method and apparatus for adjusting symbol timing and/or symbol positioning of a receive burst of data within a radio receiver
11/02/2006	US20060245519 Calibrating integrating receivers for source synchronous protocol
11/02/2006	US20060245518 Receiver front-end with low power consumption
11/02/2006	US20060245516 Apparatus, systems and methods for providing in-band atsc vestigial sideband signaling or out-of-band signaling
11/02/2006	US20060245514 Modulation device, demodulation device, modulation method and demodulation method
11/02/2006	US20060245366 Method and device for optimized adsl data transmission
11/02/2006	US20060245345 Peak electric power suppressing apparatus and peak electric power suppressing method
11/02/2006	EP1718023A2 Reducing of Inter Symbol Interference larger than a Guard Interval in OFDM
11/02/2006	EP1718022A2 Carrier frequency synchronization in a multicarrier receiver
11/02/2006	EP1718021A1 Transmitting device, receiving device and communication method for an OFDM communication system with a new preamble structure
11/02/2006	EP1718001A2 Receiving processing method and apparatus
11/02/2006	EP1717984A1 Receiving apparatus and synchronising method for a digital telecommunication system
11/02/2006	EP1717979A1 Peak power suppressor and peak power suppressing method
11/02/2006	EP1717954A1 Bit rate determination circuit based on low bit rate signal
11/02/2006	EP1716684A1 Method and apparatus providing time domain interpolated channel estimation with advanced noise suppression for multicarrier transmissions
11/02/2006	EP1716683A1 Frequency compensated communications reception
11/02/2006	EP1716682A1 Method and apparatus for carrier recovery in a communications system
11/02/2006	EP1716681A1 Channel equalization
11/02/2006	EP1716680A1 Channel estimator and method for estimating a channel transfer function and apparatus and method for providing pilot sequences
11/02/2006	EP1716679A1 Apparatus and method for estimating an effective channel and apparatus and method for providing pilot sequences
11/02/2006	EP1716656A1 Transmit diversity and spatial spreading for an ofdm-based multi-antenna communication system
11/02/2006	EP1716651A1 Method and device for wireless data transmission
11/02/2006	EP1716513A1 Apparatus, and associated method, for detecting packets
11/02/2006	EP1423935B1 Method for adapting the bit rate of a bit stream which is to be transmitted in a communication system and corresponding communication device
11/02/2006	EP1400035B1 Method and apparatus for processing data for transmission in a multi-channel communication system using selective channel inversion
11/02/2006	EP1384286B9 Inverted-f ferroelectric antenna
11/02/2006	EP1374462A4 Communication device having proximity controlled transmission
11/02/2006	EP1302043B1 Method for the transmission of digital data by means of radio signals with orthogonal frequency division multiplexing (ofdm)
11/02/2006	EP1269706B1 Method to compensate for phase errors in multi-carrier signals
11/02/2006	EP1088400B1 System and method for narrowing the range of frequency uncertainty of a doppler shifted signal
11/02/2006	EP0998823B1 Adaptive digital predistortion apparatus for linearizing a power amplifier for digital broadcasting
11/02/2006	DE202006006460U1 Hybrid orthogonal frequency division multiple access system e.g. 4G systems, has non-spread access subassembly recovering input data, where subcarriers and time periods allocated to users are hopping in pseudo-random way
11/02/2006	DE102005061523A1 Datentransmitter und Datentransceiver mit einem SAW-Filter Data transmitter and data transceiver with a SAW filter
11/02/2006	DE102005019176A1 Radio receiver for radio transmission system, has demodulation unit that sets weighting of least significant softbit based on estimated noise power and sets weighting of most significant softbit based on estimated signal power
11/02/2006	DE102004024938B4 Taktungsregenerierungsschleife mit nichtganzzahliger Länge Timing recovery loop with non-integer length
11/01/2006	CN1856976A Varying lengths of low density parity check codewords
11/01/2006	CN1856975A Computation of soft bits for a turbo decoder in a communication receiver
11/01/2006	CN1856954A Method and apparatus to select an adaptation technique in a wireless network
11/01/2006	CN1856945A Initial synchronization for receivers
11/01/2006	CN1855908A Orthogonal frequency division multiplex modem circuit
11/01/2006	CN1855907A Resource distribution between multi-carrier systems with frequency duplex factor as one
11/01/2006	CN1855906A Multi-carrier communication system and method

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