Patents for H04L 27 - Modulated-carrier systems (89,721)
03/2002
03/07/2002WO2002019645A1 Frequency offset estimator
03/07/2002WO2002019606A2 Partial response signaling for orthogonal frequency division multiplexing
03/07/2002WO2002019583A1 Multicarrier transmitter and multicarrier transmission method
03/07/2002WO2002019559A1 Radio receiver
03/07/2002WO2002019553A1 Direct conversion receiver
03/07/2002WO2002019552A2 Satellite receiver
03/07/2002WO2001089168A3 Compound chirp and synchronizer for using same
03/07/2002WO2001086903A3 Tetrahedron modem
03/07/2002WO2001076168A3 Method to compensate for phase errors in multi-carrier signals
03/07/2002WO2001076110A3 Method and apparatus for measuring channel state information
03/07/2002WO2001056239A3 Clock synchronization, frequency synchronization, channel sounder and equalizer for ofdm using pilots equidistant in the frequency domain
03/07/2002US20020027985 Parallel processing for multiple-input, multiple-output, DSL systems
03/07/2002US20020027958 Feedback channel signal recovery
03/07/2002US20020027956 Communication system and method for transmitting signal in the same
03/07/2002US20020027950 Method and apparatus for transmitting high speed data by spectral decomposition of the signaling space
03/07/2002US20020027946 Method for adaptive reverse power control for spread-spectrum communications
03/07/2002US20020027900 System and method for programmable spectrum management
03/07/2002US20020027883 Method for balancing the ratio Eb/I in a service multiplexing CDMA system and telecommunication systems using same
03/07/2002US20020027875 OFDM transmitting and receiving apparatus and OFDM transmitting and receiving method
03/07/2002US20020027479 FM signal oscillator circuit and modulation level control method
03/07/2002US20020027471 Frequency adjusting circuit in code division multiple access communication system
03/06/2002EP1185048A2 Preamble design for multicarrier transmission over channels with multiple inputs and outputs
03/06/2002EP1185047A1 Estimation and removal of intersymbol interference in multicarrier signals
03/06/2002EP1185046A2 Radio communication apparatus and channel estimating method
03/06/2002EP1185016A1 Multiplex communication system and method of signal processing
03/06/2002EP1185001A2 Adaptive time deversity and spatial diversity for OFDM
03/06/2002EP1184991A2 Mobile radio terminal with automatic frequency control circuit
03/06/2002EP1184980A2 Digital receiver
03/06/2002EP1184975A1 Gain control device
03/06/2002EP1184970A2 Frequency synthesizer and multi-band radio apparatus using said frequency synthesizer
03/06/2002EP1184864A2 System for testing and cleaning a removable media drive
03/06/2002EP1183842A1 A multiple access communication system using chaotic signals and method for generating and extracting chaotic signals
03/06/2002EP1183841A1 Compensation of mismatch in quadrature devices
03/06/2002EP1183840A1 Optimization of channel equalizer
03/06/2002EP1183781A1 Data clock recovery circuit
03/06/2002EP1183774A2 Synchronization of ofdm signals with improved windowing
03/06/2002EP1183666A1 System for remote data collection
03/06/2002EP1018252B1 Data allocation in a multicarrier transmission system
03/06/2002EP0796532A4 Ocdma code tracking system having phantom carrier signal
03/06/2002CN1339216A Demodulator for processing digital signal
03/06/2002CN1339215A Mlse using lock up tables for multiplication
03/06/2002CN1339204A Method and an apparatus for clipping signals in a CDMA system
03/06/2002CN1338881A Method for estimating quality of wireless link in radio communication system
03/06/2002CN1338852A Method and device for decreasing ratio of peak power to average power for multi-carrier signals
03/06/2002CN1338851A Join compensation method and device for decreasing ratio of peak power to average power for multi-carrier signals
03/06/2002CN1080488C Radio communication apparatus and method
03/06/2002CN1080486C Equalizer circuit of data communication terminal equipment and method thereof
03/06/2002CN1080484C Digital radio communication system having reduced phase-locked loop
03/05/2002US6353911 Iterative demapping
03/05/2002US6353640 Reconfigurable radio frequency communication system
03/05/2002US6353639 Filter configuration and slope detector for quadrature amplitude modulated signals
03/05/2002US6353637 Multistream in-band on-channel systems
03/05/2002US6353636 Symbol alignment method
03/05/2002US6353358 Quadrature demodulation circuit with a pseudo locked state detection system
03/05/2002CA2247890C Hybrid analog/digital method and apparatus for controlling the transmission power level of a radio transceiver
03/05/2002CA2241579C Digital tv receivers with poly-phase analog-to-digital conversion of baseband symbol coding
03/05/2002CA2208626C Synchronization method and system for a digital receiver
03/01/2002CA2762238A1 Adaptive time diversity and spatial diversity for ofdm
03/01/2002CA2762114A1 Adaptive time diversity and spatial diversity for ofdm
03/01/2002CA2355433A1 Preamble design for multiple input-multiple output (mimo), orthogonal frequency division multiplexing (ofdm) system
03/01/2002CA2351140A1 Adaptive time diversity and spatial diversity for ofdm
02/2002
02/28/2002WO2002017615A2 Terrestrial digitial multimedia/television broadcasting system
02/28/2002WO2002017586A1 Multicarrier transmitter circuit arrangement with predistortion linearisation method
02/28/2002WO2002017585A1 Method, transmitter and receiver for spread-spectrum digital communication by golay complementary sequence modulation
02/28/2002WO2002017584A2 Bit swapping and dynamic rate adjustment for multicarrier transmission in a digital subscriber line system
02/28/2002WO2002017583A2 Frequency-hopping receiver with clock and carrier recovery
02/28/2002WO2002017532A1 Base station apparatus, communication terminal apparatus and communication method
02/28/2002WO2002017530A1 Communication device and communication method
02/28/2002WO2002017529A1 Orthogonal frequency division multiplexed signal receiving apparatus and orthogonal frequency division multiplexed signal receiving method
02/28/2002WO2001082543A3 Multi-carrier communication systems employing variable ofdm-symbol rates and number of carriers
02/28/2002WO2001047165A3 Method and circuit arrangement for secure digital transmission
02/28/2002WO2001028176A3 Frequency correction using the cordic algorithm
02/28/2002US20020026643 Data transmission system and method
02/28/2002US20020025792 AGC amplifier circuit for use in a digital satellite broadcast receiver apparatus
02/28/2002US20020025783 Radio communication apparatus and channel estimating method
02/28/2002US20020025782 All-frequency-band SSB radio communication system and radio apparatus
02/28/2002US20020025012 Mobile radio terminal and automatic frequency control circuit
02/28/2002US20020025011 System and method for fast code phase and carrier frequency acquisition in GPS receiver
02/28/2002US20020025008 Soft-normaliser for a channel decoder
02/28/2002US20020025007 Receiver
02/28/2002US20020025005 Parallel concatenated trellis-coded modulation with asymmetric signal mapping
02/28/2002US20020024995 Method and apparatus for controlling equalizer using sync signal in digital vestigial sideband system
02/28/2002US20020024993 Method and apparatus to support multi standard, multi service base-stations for wireless voice and data networks
02/28/2002US20020024398 Correction of nonlinearity of I/Q modulator
02/28/2002US20020024393 Electronic circuit for and a method of controlling the output frequency of a frequency synthesizer
02/28/2002DE10038375A1 Transmitting data using subscriber modem involves using power level selected from maximum levels in single-carrier mode, individual levels in multi-carrier mode
02/27/2002EP1182839A2 Convolutionally encoded QAM transmission
02/27/2002EP1182838A2 Multi-band DMT receiver
02/27/2002EP1182837A2 Compensation of DC offset in direct conversion radio receivers
02/27/2002EP1182817A1 Communication device for receiving and transmitting OFDM signals in a wireless communication system
02/27/2002EP1182792A1 An electronic circuit for and a method of controlling the output frequency of a frequency synthesizer
02/27/2002EP1182775A2 Frequency Converter
02/27/2002EP1182773A2 Receiver for digital audio
02/27/2002EP1181797A1 A windowing function for maintaining orthogonality of channels in the reception of ofdm symbols
02/27/2002EP1181796A2 Method for transmitting data from an interrogating device to portable objects
02/27/2002EP1181788A1 Highly integrated adsl linecard
02/27/2002EP1181778A1 Serial-concatenated turbo codes
02/27/2002EP1181771A1 Broadcast transmission system with distributed correction
02/27/2002EP1181768A1 Linearisation and modulation device
02/27/2002EP0931382B1 Method and apparatus for decoding block codes