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)
08/2007
08/09/2007US20070183513 Signal processing system capable of changing signal levels
08/09/2007US20070183484 System and method of frequency acquisition
08/09/2007US20070183482 Cdma communication apparatus and cdma communication method
08/09/2007US20070183456 Asymmetrical Digital Subscriber Line System with Improved Data Rate
08/09/2007US20070183310 Orthogonal frequency division multiplex transmission method
08/09/2007US20070183309 Orthogonal frequency division multiplex transmission method
08/09/2007US20070183308 OFDM Multiple Sub-Channel Communication System
08/09/2007US20070183304 Apparatus and method for digitally implementing a wideband multicarrier
08/09/2007US20070182604 Sample selector time domain interpolation
08/09/2007DE102006053595A1 Demapper für einen Quadraturamplitudenmodulation-/Trellismodulation-Decoder und sich darauf beziehendes Verfahren Demapper for a Quadraturamplitudenmodulation- / Trellismodulation decoder and to the fact of relational method
08/09/2007DE102006004951A1 Integrierte Schaltungsanordnung zum Überführen eines hochfrequenten Bandpaßsignals in ein niederfrequentes Quadratursignal An integrated circuit device for converting a high-frequency bandpass signal into a low-frequency quadrature signal
08/09/2007CA2637048A1 Methods and tools for expanding coverage of an ofdm broadcast transmitter via transmit timing advance
08/08/2007EP1816820A1 Rate matching apparatus, wireless transmitting apparatus, wireless receiving apparatus, and rate matching method
08/08/2007EP1816819A2 Transmitting apparatus and method in an orthogonal frequency division multiplexing system
08/08/2007EP1816818A1 Symbol timing estimation in OFDMA systems
08/08/2007EP1816817A1 A method for reducing Peak-to-Average Power Ratio in an OFDM transmission system
08/08/2007EP1816816A1 Two-point modulation type phase modulating apparatus, polar modulation transmitting apparatus, radio transmitting apparatus, and wireless communication apparatus
08/08/2007EP1816758A2 Apparatus and method for determining beamforming vector in a codebook-based beamforming system
08/08/2007EP1816753A1 Channel estimation device and method, demodulation device and method, and fading frequency decision device and method
08/08/2007EP1816666A1 Communication device by multicarrier transmission method and communication system
08/08/2007EP1815699A2 Method and system for securing wireless communications
08/08/2007EP1815657A1 Method and device for compensating a receiver imbalances
08/08/2007EP1815656A2 Systems and methods for designing a high-precision narrowband digital filter for use in a communications system with high spectral efficiency
08/08/2007EP1815655A1 Reduced parallel and pipelined high-order mimo lmmse receiver architecture
08/08/2007EP1815654A1 Fft accelerated iterative mimo equalizer receiver architecture
08/08/2007EP1815630A2 Method and apparatus for combining space-frequency block coding, spatial multiplexing and beamforming in a mimo-ofdm system
08/08/2007EP1815612A2 A method of operating a communicaton system, a radio station, and a radio communication system
08/08/2007EP1815601A2 Method and apparatus for estimating and correcting baseband frequency error in a receiver
08/08/2007EP1815592A1 Method and system for determining the amplitude and/or phase of the output signal of a transmission link according to the amplitude of the input signal
08/08/2007EP1815590A2 Transmit signal generator and method
08/08/2007EP1351408B1 Digital point-to-multipoint data transmission system on an electric network
08/08/2007EP1057253B1 Down/up-conversion apparatus and method
08/08/2007EP1041787B1 Apparatus for generating absolute phase of signal received by receiver
08/08/2007EP1039709B1 Receiver for signals modulated by a plurality of PSK modulation schemes
08/08/2007EP0894388B1 Pilot-symbol-assisted radiotelephone communications
08/08/2007CN2932845Y CDMA/TDMA mobile communication equipment
08/08/2007CN1331076C Real-time search engine
08/08/2007CN101015204A Display apparatus and control method thereof
08/08/2007CN101015183A Method of converting a digital bb (baseband) signal into an analog if (intermediate-frequency) signal
08/08/2007CN101015182A Frequency error correction by using remodulation
08/08/2007CN101015181A Distance division multiplexing
08/08/2007CN101015159A High data rate demodulation system
08/08/2007CN101015158A High data rate demodulation system
08/08/2007CN101015134A Method of obtaining spectral voids in the transmission of signals over the electric network
08/08/2007CN101015121A 失真补偿电路 Distortion compensating circuit
08/08/2007CN101014167A SIM card-based classified access method of incoming call
08/08/2007CN101014166A Network reprogramming method of wireless sensor network based on priority cluster
08/08/2007CN101014164A Communication apparatus
08/08/2007CN101014103A Digital multimedia reception device
08/08/2007CN101014099A Digital multimedia reproducing apparatus and method of providing digital multimedia broadcasting in the digital multimedia reproducing apparatus
08/08/2007CN101014033A Hard-decision method fitted for implementation of multilevel quadrature amplitude modulation
08/08/2007CN101014032A Multi-carrier spread spectrum communication method based on discrete Fourier transform sequence
08/08/2007CN101014031A Frequency coarse synchronizing method
08/08/2007CN101014030A Symbol timing estimation in OFDMA systems
08/08/2007CN101014029A Method for generating OFDM synchronous training sequence and synchronizing method based on the training sequence
08/08/2007CN101014028A Frequency coarse synchronizing method of using property of phase reference code element
08/08/2007CN101014027A DC offset correction device and method
08/08/2007CN101013892A Phase-locked loop
08/08/2007CA2577539A1 Blind identification of advanced modulation and coding modes
08/07/2007USRE39759 Time domain radio transmission system
08/07/2007US7254766 Discrete multi-tone (DMT) system and method that communicates a data pump data stream between a general purpose CPU and a DSP via a buffering scheme
08/07/2007US7254598 Finite impulse response filter and digital signal receiving apparatus
08/07/2007US7254204 Method and system for OFDM symbol timing synchronization
08/07/2007US7254200 System and method for frequency burst detection for GSM/GPRS
08/07/2007US7254196 Symbol timing for MIMO OFDM and other wireless communication systems
08/07/2007US7254195 Apparatus, methods and articles of manufacture for dynamic differential delay correction
08/07/2007US7254194 Automatic gain control for communication receivers
08/07/2007US7254193 Channel estimation sequence and method of estimating a transmission channel which uses such a channel estimation sequence
08/07/2007US7254192 Iterative detection in MIMO systems
08/07/2007US7254190 Satellite receiver
08/07/2007US7254189 Blind carrier offset detection for quadrature modulated digital communication systems
08/07/2007US7254188 Method and system for modulating and detecting high datarate symbol communications
08/07/2007US7254187 Narrow band chaotic bi-phase shift keying
08/07/2007US7254186 Electromagnetic wave transmitter, receiver and transceiver systems, methods and articles of manufacture
08/07/2007US7254184 Wireless communication using multi-transmit multi-receive antenna arrays
08/07/2007US7254183 Dual link DVI transmitter serviced by single phase locked loop
08/07/2007US7254182 Transmitter for operating multiple devices
08/07/2007US7254181 Transmitting apparatus and method, receiving apparatus and method, and transmitting and receiving apparatus and method
08/07/2007US7254179 Decoding for peak-power reduction and error-correction capabilities in multicarrier transmission
08/07/2007US7254177 Architecture for a digital subscriber line analog front end
08/07/2007US7254167 Constellation-multiplexed transmitter and receiver
08/07/2007US7254166 Power allocation scheme for DMT-based modems employing simplex transmission
08/07/2007US7254161 Method for frequency offset estimation in a direct sequence spread spectrum communications receiver
08/02/2007WO2007087440A2 Rake receiver for cellular pc modem
08/02/2007WO2007087041A2 Method and apparatus for signal processing in rfid receivers
08/02/2007WO2007085924A1 Predetermined transmission mode sequence and feedback reduction technique
08/02/2007WO2007066044A3 Dynamic interleaving method and device
08/02/2007WO2007054559A8 Ultra-broadband communication system provided with a frequency controlled dispersive antenna
08/02/2007WO2007052113A3 Pilot sequence detection
08/02/2007WO2007050921A3 Method and apparatus for achieving flexible bandwidth using variable guard bands
08/02/2007WO2005048547A8 Tx line driver with common mode idle state and selectable slew rates
08/02/2007US20070177695 Multi-user detection in cdma systems
08/02/2007US20070177694 Method and apparatus for signal processing in RFID receivers
08/02/2007US20070177693 Integrated circuit arrangement for converting a high-frequency bandpass signal to a low-frequency quadrature signal
08/02/2007US20070177692 Receiver having dc offset voltage correction
08/02/2007US20070177690 Radio-controlled method and device for measuring time
08/02/2007US20070177689 Method and apparatus for sub sample-per-symbol demodulator for a spectrally efficient waveform with an lpi feature
08/02/2007US20070177686 System and Method for Pre-FFT OFDM Fine Synchronization
08/02/2007US20070177683 Wireless communication system
08/02/2007US20070177681 Mimo-ofdm system using eigenbeamforming method
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