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)
10/2007
10/04/2007WO2007084898A3 Multi-symbol signals including an initial symbol and an extension portion
10/04/2007WO2007074376A3 Priority based transmission based on channel quality using power sequencing
10/04/2007WO2007074371A3 Apparatus, method and computer program product providing frequency domain multiplexed multicast and unicast transmissions
10/04/2007WO2007029119A3 High effeciency rf transmitter system using non-linear amplifiers
10/04/2007WO2006116003A3 Hybrid orthogonal frequency division multiple access system and method
10/04/2007US20070234179 Method and system for providing short block length low density parity check (LDPC) codes in support of broadband satellite applications
10/04/2007US20070234175 Methods and apparatus for interleaving in a block-coherent communication system
10/04/2007US20070230677 System and method for dynamically establishing optimum audio quality in an audio conference
10/04/2007US20070230640 High definition multi-media interface
10/04/2007US20070230637 System and Method for Improved Carrier Recovery
10/04/2007US20070230636 Method and system for automatic gain control with intelligent selection of signal samples
10/04/2007US20070230635 Wireless communication reception with cooperation between agc and digital baseband
10/04/2007US20070230634 Start-up automatic frequency control (afc) method and apparatus
10/04/2007US20070230633 Method of determining a synchronous phase
10/04/2007US20070230629 Signal detector
10/04/2007US20070230628 Apparatus and method for detecting a signal in a communication system using Multiple Input Multiple Output scheme
10/04/2007US20070230627 Forward error correction in a distribution system
10/04/2007US20070230626 Wireless receiver
10/04/2007US20070230625 Optical DQPSK receiver apparatus
10/04/2007US20070230624 Demodulation method and apparatus
10/04/2007US20070230622 UWB radio interface with DC offset
10/04/2007US20070230620 Method and apparatus for synchronizing alternating quadratures differential binary phase shift keying modulation and demodulation arrangements
10/04/2007US20070230619 Alternating quadratures differential binary phase shift keying modulation and demodulation method
10/04/2007US20070230618 Mixer-based phase control
10/04/2007US20070230617 Apparatus method for monitoring the I-Q phase bias in an I-Q quadrature modulation transmitter
10/04/2007US20070230615 Reduced distortion amplifier
10/04/2007US20070230613 Data transmission apparatus and communication system using a constellation rearrangement
10/04/2007US20070230612 Apparatus, system, and method for amplitude-phase synchronization in polar transmitter
10/04/2007US20070230611 Apparatus and method of differential IQ frequency up-conversion
10/04/2007US20070230610 Apparatus for performing alternating quadratures differential binary phase shift keying modulation and demodulation
10/04/2007US20070230552 Method of differential-phase/absolute-amplitude qam
10/04/2007US20070230549 Periodic calibration for communication channels by drift tracking
10/04/2007US20070230543 Data demodulation from weak navigational satellite signals
10/04/2007US20070230511 Cell Search Method For Orthogonal Frequency Division Multiplexing Based Cellular Communication System
10/04/2007US20070230431 Methods and Apparatus for Backwards Compatible Communication in a Multiple Antenna Communication System Using Fmd-Based Preamble Structures
10/04/2007US20070230388 Methods and Apparatus for Multi-Carrier, Multi-Cell Wireless Communication Networks
10/04/2007US20070230325 Method and system for training sequences
10/04/2007US20070230324 Methods and Apparatus for Multi-Carrier Communication Systems with Adaptive Transmission and Feedback
10/04/2007US20070229713 Symbol Timing Ambiguity Correction
10/04/2007US20070229180 Distortion Compensation Circuit
10/04/2007DE112005002306T5 Mehrträgerempfänger und Verfahren zum Detektieren zyklischer Präfixe mit unbekannten Längen Multicarrier receiver and method for detecting cyclic prefixes with unknown lengths
10/04/2007DE112005002036T5 Adaptives Preemphasisfiltern in einem Phasenmodulator Adaptive Preemphasisfiltern in a phase modulator
10/04/2007DE10020930B4 Vorrichtung und Verfahren zur Vorbehandlung eines unter Verwendung eines nichtlinearen Verstärkers mit vorgeschaltetem Bandpaßfilter zu übertragenden Signals Apparatus and method for pretreating a transmitted using a non-linear amplifier with preceding bandpass filter to the signal
10/04/2007CA2646504A1 Feedback of channel state information for mimo and subband scheduling in a wireless communication system
10/03/2007EP1841159A2 Radio communication apparatus and radio communication unit
10/03/2007EP1841158A1 Transmitter and power amplifying method
10/03/2007EP1841155A1 Equalizer and Equalization Method
10/03/2007EP1841119A1 A method for suppressing the inter-carrier interference in the orthogonal frequency division multiplexing mobile communication system
10/03/2007EP1841112A1 Transmitting method and transmitting apparatus in ofdm-cdma communication system
10/03/2007EP1841076A1 Method of and device for communication
10/03/2007EP1386463B1 Satellite up-link fade control
10/03/2007EP1378078B1 Underwater communication system
10/03/2007EP0688454B1 Multi-mode identification system
10/03/2007CN101048995A Method for detecting initial operation mode in wireless communication system employing ofdma scheme
10/03/2007CN101048994A OFDM position location signaling utilizing mutually exclusive subsets of subcarriers
10/03/2007CN101048955A Frequency domain equalizer for wireless communications system
10/03/2007CN101048951A Radio transmitter and pilot signal inserting method
10/03/2007CN101048950A 发送机 Transmitter
10/03/2007CN101048943A Methods and apparatuses for intrasystem and intersystem sliding intermediate frequency transception
10/03/2007CN101047986A Call set-up method
10/03/2007CN101047970A Channel quality report method and equipment for quick cell selection
10/03/2007CN101047689A 接收电路和接收方法 Receiving circuit and receiving method
10/03/2007CN101047688A Method and device for estimating signal noise ratio
10/03/2007CN101047687A Receiving circuit and receiving method
10/03/2007CN101047686A Receiving symbolic synchronous method for WiMAX system
10/03/2007CN101047685A Leading code profile reducing method and system and leading structure
10/03/2007CN101047684A Detection method of orthogonal frequency division multiplex system
10/03/2007CN101047683A Radio signal transmitting/receiving method and transmitting/receiving device
10/03/2007CN101047682A Transmission power spectrum density shaping method of digital customer vine transciever
10/03/2007CN101047681A Method for transmitting broadcast service information
10/03/2007CN101047680A Frequency offset estimation method in orthogonal frequency division multiplex OFDM system
10/03/2007CN101047679A Data transmission method and system
10/03/2007CN101047678A Channel estimating method and device for orthogonal frequency division multiplex system
10/03/2007CN101047677A Low complexity, high performance GFSK signal multi-bit demodulation method
10/03/2007CN101047676A Low-latency baseline-wander compensation systems and methods
10/03/2007CN101047675A Implementing method and device of pre-pilot frame
10/03/2007CN101047595A Initial method and device of bus system
10/03/2007CN101047586A Service QoS ensuring method and device for radio mesh network
10/03/2007CN101047571A Method and system for transmitting test route
10/03/2007CN101047570A Method for deciding carried media gateway of media gateway controller
10/03/2007CN101047533A Method and device for connecting multi-conference
10/03/2007CN101047474A TD-SCDMA uplink link method combined with MIMO technology
10/03/2007CN101047421A Device and method for mobile communication using repeater station
10/03/2007CN100341304C Digital signal processing reception device and method
10/03/2007CN100341268C Method and apparats for communicating call
10/03/2007CN100341251C Low leakage local oscillator system
10/03/2007CN100341241C System for controlling class D amplifier
10/03/2007CN100340972C Method for implementing logarithm computation by field programmable gate array in digital auto-gain control
10/02/2007US7278088 Configurable architecture and its implementation of viterbi decorder
10/02/2007US7278070 Interleaving to avoid wideband interference in a multi-carrier communications system
10/02/2007US7277685 Automatic gain control of multiple antenna OFDM receiver
10/02/2007US7277643 Clock extracting fabric in a communication device
10/02/2007US7277516 Adaptive equalization system for a signal receiver
10/02/2007US7277513 Frequency domain notching with dummy subchannels
10/02/2007US7277511 Two-stage non-linear filter for analog signal gain control in an OFDM receiver
10/02/2007US7277510 Adaptation algorithm based on signal statistics for automatic gain control
10/02/2007US7277509 Low complexity frequency-offset correction method
10/02/2007US7277507 Viterbi decoder
10/02/2007US7277506 Maximum likelihood sequence estimator which computes branch metrics in real time
10/02/2007US7277505 Mapping arrangement for digital communication system
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