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)
08/2012
08/02/2012WO2012037236A3 Dynamic bandwidth provisioning in frequency division duplex systems
08/02/2012WO2012030606A3 Adaptation circuitry and methods for decision feedback equalizers
08/02/2012US20120197085 Signal transmission device and endoscope system
08/02/2012US20120195399 Apparatus, method and receiving terminal for ldpc decoding
08/02/2012US20120195398 Virtual limited buffer modification for rate matching
08/02/2012US20120195397 Channel estimator with high noise suppression and low interpolation error for ofdm systems
08/02/2012US20120195396 Stacked digital/rf system-on-chip with integral isolation layer
08/02/2012US20120195391 Physical Layer Frame Format for Long Range WLAN
08/02/2012US20120195390 Processing method and system of demodulate reference signal, base station, user equipment
08/02/2012US20120195389 System including reply signal that at least partially overlaps request
08/02/2012US20120195388 Encoding Apparatus, Encoding Method, and Storage Medium
08/02/2012US20120195387 Communication Device and Communication Method
08/02/2012US20120195386 Flexibly Targeting Information Sent Over a Broadcast Communications Medium
08/02/2012US20120195385 Communications on power systems
08/02/2012US20120195360 Methods for managing alignment and latency in interference suppression
08/02/2012US20120195359 Transmitter with dynamic equalizer
08/02/2012US20120195358 Method and apparatus for reducing the processing rate of a chip-level equalization receiver
08/02/2012US20120195353 System and method for descrambling the phase of carriers in a multicarrier communications system
08/02/2012US20120195350 System and Method for Facilitating Data Transfer Using a Shared Non-Deterministic Bus
08/02/2012US20120195347 Embedded meta-carrier with spread spectrum via overlaid carriers
08/02/2012US20120195280 Adaptive scheduling of voice traffic in a multi-carrier communication environment
08/02/2012US20120195243 Apparatus and methods for transmission and reception of data in multi-antenna systems
08/02/2012US20120195184 Systems and methods for orthogonal frequency divisional multiplexing
08/02/2012US20120194287 Radio frequency drive level control system and method for an electro-optic phase modulator
08/02/2012US20120194266 Reduction of the Sensitivity to the Jitter Demodulation of the Sampling Clock Signal
08/02/2012CA2825017A1 Peak-to-average power ratio reduction for hybrid fm hd radio transmission
08/01/2012EP2482511A1 Beacon assisted cell search in a wireless communication system
08/01/2012EP2482510A1 Link adaptation system and method for multicarrier transmission systems
08/01/2012EP2482509A1 Communications devices with envelope extraction and related methods
08/01/2012EP2482508A2 Apparatus and method for transmitting/receiving signals by using a preset frame structure in a wireless communication system
08/01/2012EP2482507A2 Method and apparatus for receiving downlink data in multi-carrier system
08/01/2012EP2482485A1 Pilot frequency mapping method and adopted base station
08/01/2012EP2482478A2 Method and apparatus for receiving a downlink signal in a wireless communication system supporting carrier aggregation
08/01/2012EP2482476A2 A method for transmitting multiple streams in wireless broadcast networks
08/01/2012EP2482473A1 Method and device for monitoring and controlling phase difference based on dqpsk modulation
08/01/2012EP2481191A2 Coaxial network communication node and methods for communicating multimedia over a coaxial network with reduced-length cyclic prefixes
08/01/2012EP2213063B1 Low density parity check (ldpc) encoded higher order modulation
08/01/2012EP2208329B1 Voice and data communication services using orthogonal sub-channels
08/01/2012EP2195986B1 Method and system for transmitting and receiving signals
08/01/2012EP1949632B1 Methods and apparatus for mitigation of nonlinear distortion
08/01/2012EP1794969B1 Method and apparatus for improved efficiency in an extended multiple antenna communication system
08/01/2012EP1374515B1 Increasing data throughput in optical fiber transmission systems
08/01/2012EP1317813B1 Multicarrier receiver
08/01/2012CN202364257U 数字调制无线传输系统 Digital modulation radio transmission system
08/01/2012CN102625978A Method of Relay Node using reference signal and Relay Node using the method
08/01/2012CN102625457A Methods for sending, receiving and transmitting downlink control information and related devices
08/01/2012CN102625448A Improved TDOA positioning method for LTE system
08/01/2012CN102624673A Processing method of orthogonal modulation signal and system thereof
08/01/2012CN102624672A Block-based dual-transformation OFDM (Orthogonal Frequency Division Multiplexing) communication method
08/01/2012CN102624671A Method and device for reducing peak to average power ratio of downlink signal of LTE (Long Term Evolution) system
08/01/2012CN102624670A Wireless OFDM (Orthogonal Frequency Division Multiplexing) signal peak to average power ratio inhibiting method based on amplitude distribution optimization
08/01/2012CN102624669A Mixed distribution optimization-based orthogonal frequency division multiplexing (OFDM) signal peak-to-average power ratio suppression method
08/01/2012CN102624668A Base Station, transmitting method, communication system, receiving device and receiving method
08/01/2012CN102624667A Time bias compensation method of multipoint multiuser orthogonal frequency division multiple access (OFDMA) system
08/01/2012CN102624666A Cyclic coding method of multi-channel transceiving orthogonal multi-carrier underwater acoustic communication in sparse channel model
08/01/2012CN102624665A Method for reducing peak to average power ratio (PAPR) of multi-carrier communication signals
08/01/2012CN102624664A Method and system for optical orthogonal frequency division multiplexing with hadamard transform combined with companding transform
08/01/2012CN102624663A Method and apparatus for controlling of carrier activation
08/01/2012CN102624662A Incoherent detection technology suitable for DMR digital trunking communication system
08/01/2012CN102624661A Spectral peak prominence index-based spectral peak number identification method
08/01/2012CN102624660A Four-weighted fractional Fourier transform-based narrowband interference suppression method
08/01/2012CN102624658A Transmission method of time domain synchronous-orthogonal frequency division multiplexing (TDS-OFDM) based on theory of compressive sensing
08/01/2012CN102624652A LDPC decoding method and apparatus, and receiving terminal
08/01/2012CN102624521A Scrambler, scramble processing method, and program
08/01/2012CN102624509A Method and system for embedding single-carrier data frame into multi-carrier data frame in digital terrestrial television broadcasting
08/01/2012CN102624501A Method and apparatus for sending channel quality indication
08/01/2012CN102624481A Self-adaptive modulation and coding method and apparatus
08/01/2012CN102624459A Generation method and device for FSK (frequency shift keying) optical labelling signal
08/01/2012CN102624455A LED visible light wireless communication system for mine
08/01/2012CN102624442A Wireless communication system and method for sending uplink synchronization channel
08/01/2012CN102624419A Carrier synchronization method of burst direct sequence spread spectrum system
08/01/2012CN101848180B OFDM symbol timing synchronization method under multipath channel
08/01/2012CN101834705B Signal mapping and de-mapping method for wireless communication system
08/01/2012CN101707583B Method and device for determining cyclic prefix mode and timing with orthogonal frequency division multiplexing symbol
08/01/2012CN101631003B Method for rotating modulation signals for MIMO-OFDM system
08/01/2012CN101594168B Method, device and equipment for detecting lead code of random access channel
08/01/2012CA2766464A1 Communications devices with envelope extraction and related methods
07/2012
07/31/2012US8233854 Polar modulator and method for generating a polar-modulated signal
07/31/2012US8233781 Image reproduction method and image reproduction apparatus
07/31/2012US8233574 Joint space-time optimum filters (JSTOF) for interference cancellation
07/31/2012US8233570 Adaptive channel prediction system and method
07/31/2012US8233568 Adaptive receiver for high-order modulated signals over fading channels
07/31/2012US8233566 Method and system for detecting narrowband signals using a receiver with a wideband frontend
07/31/2012US8233565 Method and system for high speed wireless data transmission between communication devices
07/31/2012US8233563 Outphasing amplification of digital modulated signals in a radiofrequency transmission system
07/31/2012US8233562 System and method for closed-loop signal distortion
07/31/2012US8233561 Image forming apparatus and data communication method
07/31/2012US8233560 Restricted codebooks and related signaling to perform beamforming
07/31/2012US8233555 Time varying delay diversity of OFDM
07/31/2012US8233554 Increased capacity communications for OFDM-based wireless communications systems/methods/devices
07/31/2012US8233551 Adjustable transmitter power for high speed links with constant bit error rate
07/31/2012US8233465 Signaling format for WLANS
07/31/2012US8233377 Assignment method and base station apparatus using the assignment method
07/31/2012CA2687326C Method and apparatus for providing a cartesian training waveform
07/31/2012CA2569457C Wireless communication system with configurable cyclic prefix length
07/31/2012CA2563944C Apparatus and method for transmitting/receiving pilot signals in a communication system using an orthogonal frequency division multiplexing scheme
07/26/2012WO2012100254A2 Frame formatting for high rate optical communications
07/26/2012WO2012100253A2 Digital demodulator architecture
07/26/2012WO2012100226A1 System for i-q phase mismatch detection and correction
07/26/2012WO2012100220A2 Systems and methods for selecting digital content channels using low noise block converters including digital channelizer switches
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