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)
05/2003
05/01/2003WO2003036831A1 Method and apparatus for transient suppression in an integrated pots/dsl line card
05/01/2003WO2003036819A2 Detection and classification of signals utilizing known repeated training sequences
05/01/2003WO2003036813A1 Velocity responsive filtering for pilot signal reception
05/01/2003WO2003036800A2 A method and apparatus for symbol synchronization using matched filtering
05/01/2003WO2003013089A3 Supressed cycle based carrier modulation using amplitude modulation
05/01/2003WO2002091651A3 Fast exchange during initialization in multicarrier communication systems
05/01/2003WO2002078200A3 Transceiver
05/01/2003WO2002039580A3 Direct conversion receiver
05/01/2003US20030084394 Multi-frequency data transmission channel power allocation
05/01/2003US20030084382 Mapping system for transmission and reception of multiple data types
05/01/2003US20030083083 System and method for locating a data frame within a transmitted data stream
05/01/2003US20030081741 Dual mode phone line networking modem utilizing conventional telephone wiring
05/01/2003US20030081705 Compensation for non-linear distortion in a modem receiver
05/01/2003US20030081704 Error recovery apparatus of digital broadcasting receiver to compensate a phase-error generated by a broadcasting signal transmitted through a multi-path channel
05/01/2003US20030081702 Sequence estimation method and sequence estimator
05/01/2003US20030081698 Method of conversion and converter of frequency modulated signal into pulse frequency Modulated signal with suppression of carrier frequency components of the pulse frequency modulation
05/01/2003US20030081695 Computationally efficient system and method for channel estimation
05/01/2003US20030081693 Low complexity high-speed communications transceiver
05/01/2003US20030081690 Apparatus and method for transmitting/receiving data in a CDMA mobile communication system
05/01/2003US20030081689 System and method for receiving OFDM signal
05/01/2003US20030081582 Aggregating multiple wireless communication channels for high data rate transfers
05/01/2003US20030081561 System and method for wireless projection
05/01/2003US20030081551 Monitoring equipment for optical digital communications
05/01/2003CA2464697A1 Estimating a transmission channel with pilot symbols distributed in lattice structure
05/01/2003CA2464409A1 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
05/01/2003CA2409917A1 Error recovery apparatus of digital broadcasting receiver to compensate a phase-error generated by a broadcasting signal transmitted through a multi-path channel
04/2003
04/30/2003CN1415157A Carrier tracking loop for direct sequence spread spectrum systems
04/30/2003CN1415156A Offset correction in spread spectrum communication system
04/30/2003CN1415155A Method and device for estimating frequency offset by combining pilot symbols and data symbols
04/30/2003CN1415154A Method and apparatus for buffering data samples in software based ADSL modem
04/30/2003CN1414754A Radio receiving device and method of shared computer peripheral equipment
04/30/2003CN1414719A Method of realizing CDMA base band system accurate coherent demodulation
04/30/2003CN1414714A Orthogonal frequency division multiplex receiving system and its method
04/30/2003CN1107412C Apparatus for demodulating and decoding satillite, terrestrial and cable transmitted digital television data
04/30/2003CN1107399C Hierarchical transmission digital demodulator
04/30/2003CN1107394C Code multi-way multiplex transmission device
04/30/2003CN1107391C CDMA receiving apparatus
04/30/2003CN1107389C Satellite direct broadcast system
04/30/2003CN1107373C Frequency lock indicator of FPLL demodulated signal having a pilot
04/29/2003US6556639 Method and apparatus for determining transmission mode and synchronization for a digital audio broadcasting signal
04/29/2003US6556636 Digital communication apparatus having level controller with a disturbance detection unit
04/29/2003US6556632 Sequence estimation method and sequence estimator
04/29/2003US6556631 RDS data demodulator capable of precisely attenuating ARI signal
04/29/2003US6556630 Dual band telemetry system
04/29/2003US6556629 Orthogonal signal transmitter
04/29/2003US6556623 Systems and methods for a multi-carrier transceiver with radio frequency interference reduction
04/29/2003US6556619 Frequency adjusting circuit in code division multiple access communication system
04/29/2003US6556581 Ethernet to phase shift key converter
04/29/2003US6556557 Method and system for reducing of peak-to-average power ratio of transmission signals comprising overlapping waveforms
04/29/2003CA2293465C Device and method for reducing the peak-to-average power ratio of a mobile station's transmit power
04/24/2003WO2003034732A1 Interactive protocol for remote management of access control to scrambled data
04/24/2003WO2003034678A2 Method for measuring the modulation error in digital modulated high frequency signals
04/24/2003WO2003034676A2 Change of sampling rate with single carrier and multicarrier waveforms
04/24/2003WO2003034675A1 Sigma-delta modulation in a discrete multitone system
04/24/2003WO2003034646A2 Method and apparatus for channel quality measurements
04/24/2003WO2003034644A1 Scattered pilot pattern and channel estimation method for mimo-ofdm systems
04/24/2003WO2003034642A2 Synchronisation in multicarrier cdma systems
04/24/2003WO2003034640A1 Transmission method
04/24/2003WO2003034639A1 Adaptive point-to-point microwave radio system
04/24/2003WO2003034617A1 Radio apparatus and adaptive array processing method
04/24/2003WO2003034613A1 Apparatus, and associated method, for concatenated transmit diversity
04/24/2003WO2003034610A2 Method and apparatus for determining power allocation in a mimo communication system
04/24/2003WO2003034602A1 Direct conversion receiver
04/24/2003WO2003034316A1 Amplifier modulation
04/24/2003WO2003034185A2 Method and system for dsl power saving
04/24/2003WO2003021972A8 Multi-user detection
04/24/2003WO2002102130A3 Control of power spectral density by modulation of subcarriers which do not carry data
04/24/2003US20030078024 Simplified noise estimation and/or beamforming for wireless communications
04/24/2003US20030077032 Long distance optical transmission system for high dynamic range signals
04/24/2003US20030076946 Method and apparatus for transient suppression in an integrated POTS/DSL line card
04/24/2003US20030076912 Efficient implementation of a decision directed phase locked loop (DD-PLL) for use with short block code in digital communication systems
04/24/2003US20030076906 Automatic gain control method for digital subscriber line modems
04/24/2003US20030076900 Decimated noise estimation and/or beamforming for wireless communications
04/24/2003US20030076898 Digital modulation system using extended code set
04/24/2003US20030076897 Digital transmission method for bandwidth and bit rate flexibility
04/24/2003US20030076893 Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form
04/24/2003US20030076890 Method and apparatus for detection and decoding of signals received from a linear propagation channel
04/24/2003US20030076889 Constellation mapping for modulated communications
04/24/2003US20030076777 Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems
04/24/2003US20030076186 Oscillation circuit
04/24/2003US20030076165 Method and apparatus for the detection and classification of signals utilizing known repeated training sequences
04/24/2003US20030076164 Method and apparatus for frequency shift-keying demodulation and applications thereof
04/24/2003CA2462985A1 Amplifier modulation
04/23/2003EP1304843A2 Peak suppression method and data transmission apparatus
04/23/2003EP1304824A1 Method for transmitting data by means of chaotic signals
04/23/2003EP1304812A1 Simplified noise estimation for orthogonal frequency division multiplexing communication systems
04/23/2003EP1303962A2 Sliding-window processing for the recpetion of multicarrier signals
04/23/2003EP1303961A1 Multichannel interferometer with phase generated carrier demodulation and quadrature error correction
04/23/2003EP1303960A2 Data transmission using pulse width modulation
04/23/2003EP1303959A2 Transmission of main and auxilliary data using pulse width modulation
04/23/2003EP1303958A2 Data transmission using pulse width modulation
04/23/2003EP1303937A1 Link quality determination of a transmission link in an ofdm transmission system
04/23/2003EP1303924A2 High data-rate powerline network system and method
04/23/2003EP1303919A2 System and apparatus for a direct conversion receiver and transmitter
04/23/2003EP0621998B2 Method and apparatus for the formatting of data for transmission
04/23/2003CN1413405A Baseband processor with look-ahead parameter estimation capabilities
04/23/2003CN1413404A DMT bit distribution with incomplete TEQ
04/23/2003CN1413387A Communication terminal having receiver and method for removing known interferers from digitized intermediate frequency signal
04/23/2003CN1413354A Fixed OFDM wireless MAN utilizing CPE having internal antenna
04/23/2003CN1412953A Gain control method for short pulse transmission signal receiver and receiver using it
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