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)
03/2014
03/19/2014CN103647741A Subcarrier Index Modulation (SIM)-Orthogonal Frequency Division Multiplexing (OFDM) based superposition coded modulation method
03/19/2014CN103647740A Multi-carrier modulation and demodulation method of orthogonal non-uniform multi-carrier spacing based on Ramanujan summation
03/19/2014CN103647739A OFDM-PON uplink frame synchronization method
03/19/2014CN103647738A 14443 interface BPSK subcarrier demodulation circuit
03/19/2014CN103647737A Time-hopping multi-access achieving method for m-ary position phase shift keying (MPPSK) modulation
03/19/2014CN103647736A Double communication system underwater acoustic Modem and implementation method thereof
03/19/2014CN103647732A 4G-network system efficiency maximization method based on multi-user interference characteristic prediction
03/19/2014CN103647581A Robust wideband symbol and frame synchronizer for power-line communication
03/19/2014CN102610230B Method and device for analyzing digital audio broadcasting signals
03/19/2014CN102487371B Bandwidth adjusting method, transmitter and receiver
03/19/2014CN102377713B Data transmission method, system and device
03/19/2014CN102349243B Data transmission method and apparatus in multiple antenna system
03/19/2014CN102325119B Joint estimation method of time deviation and frequency deviation
03/19/2014CN102282816B Method and device for reducing quantification noise for transmitting a multi-carrier signal
03/19/2014CN102257780B Methods and systems for programmable digital up-conversion
03/19/2014CN102246486B A transmitting method and a receiving method of a modulated data stream
03/19/2014CN102231722B Resource allocations
03/19/2014CN102158446B Method and device for decoding physical broadcast channel (PBCH) in time division duplex (TDD) system
03/19/2014CN102111362B Method for reducing complexity of continuous phase modulation receiver
03/19/2014CN102065044B Method and system for tracking phase in a receiver for 8VSB
03/19/2014CN101945074B Method for sending intermediate pilot frequency
03/19/2014CN101860515B Carrier synchronization realizing method under physical layer simulation mode of DMR (Digital Mobile Radio) communication system
03/19/2014CN101827058B Transmitter, receiver, power amplification method, and signal demodulation method
03/19/2014CN101826907B Multi-access mode notification method and transmitting device for wireless link information transmission
03/18/2014US8676060 Quadrature amplitude modulation signal generating device
03/18/2014US8675796 Interference cancellation under non-stationary conditions
03/18/2014US8675789 Receiver with variable gain elements and automatic gain control to maintain a positive signal to noise ratio margin
03/18/2014US8675788 Correction of frequency offsets greater than the nyquist frequency
03/18/2014US8675787 Circuit for detecting a predetermined symbol in a digital data stream and associated method
03/18/2014US8675786 Method and apparatus for performing baseband equalization in symbol modulated communications
03/18/2014US8675785 Method and apparatus for Turbo receiver processing
03/18/2014US8675784 Channel adaptive sphere detector
03/18/2014US8675783 Low complexity distance metrics for maximum likelihood receivers
03/18/2014US8675782 Highly-spectrally-efficient receiver
03/18/2014US8675781 Radio frequency receiver system for wideband signal processing
03/18/2014US8675780 Multiple input multiple output (MIMO) transmitted signal vector estimation employing Monte Carlo sampling techniques
03/18/2014US8675779 Harmonic transmission of data
03/18/2014US8675778 Carrier recovery circuit and demodulation circuit under quasi-coherent detection method
03/18/2014US8675777 Programmable if frequency filter for enabling a compromise between DC offset rejection and image rejection
03/18/2014US8675775 Signal processing apparatus and methods
03/18/2014US8675774 Constellation rearrangement for transmit diversity schemes
03/18/2014US8675773 Apparatus, systems and methods for providing enhancements to ATSC networks using synchronous vestigial sideband (VSB) frame slicing
03/18/2014US8675771 Log likelihood ratio arithmetic circuit, transmission apparatus, log likelihood ratio arithmetic method, and program
03/18/2014US8675752 Digital video broadcast service discovery
03/18/2014US8675751 Meta-carrier embedding technique with improved performance for BPSK, MSK, and O-QPSK modulation
03/18/2014US8675750 Apparatus and method for reducing peak to average power ratio through recombination of orthogonal frequency division multiplexing symbol
03/18/2014US8675749 Channel estimation in OFDM transmission system and method
03/18/2014US8675747 Channel estimating apparatus and method thereof
03/18/2014US8675746 Distance estimation
03/18/2014US8675745 Method for detecting an OFDM signal
03/18/2014US8675743 Feedback scheduling to reduce feedback rates in MIMO systems
03/18/2014US8675742 Method and system for synchronously transmitting asynchronous data
03/18/2014US8675723 Apparatus and methods for processing a vestigial sideband signal using a sectionalizing adaptive equalizer
03/18/2014US8675718 Iterative precoder matrix computation method and apparatus
03/18/2014US8675628 Demultiplexing apparatus, multiplexing apparatus, communication apparatus, and relay satellite
03/18/2014US8674758 Method and apparatus for improved high order modulation
03/18/2014CA2762114C Adaptive time diversity and spatial diversity for ofdm
03/18/2014CA2636713C Fast acquisition of traffic channels for a highly variable data rate
03/18/2014CA2636375C An apparatus and method for hybrid automatic repeat request
03/13/2014WO2014038813A1 Adaptating a number of aggregation levels for control channel elements
03/13/2014WO2014037321A1 Method and device for improving a home network making use of an adaptive guard interval
03/13/2014WO2014037318A1 Reduction of peak-to-average ratio in ofdm systems
03/13/2014WO2014036969A1 Channel estimation for optical orthogonal frequency division multiplexing systems
03/13/2014US20140072307 Channel Estimation for Optical Orthogonal Frequency Division Multiplexing Systems
03/13/2014US20140072081 Data processing apparatus and method for use in an interleaver suitable for multiple operating modes
03/13/2014US20140072080 Physical Layer Frame Format Design for Wideband Wireless Communications Systems
03/13/2014US20140072077 Transmitter
03/13/2014US20140072072 High Dynamic Range Transceiver
03/13/2014US20140072062 Systems and methods for a multicarrier modulation system with a variable margin
03/13/2014US20140072061 System and method for channel estimation in a delay diversity wireless communication system
03/13/2014US20140072026 Mechanism for Performing Equalization Without Prior Knowledge of Modulation Type or Constellation Order
03/13/2014US20140072025 Transmission apparatus and communication system
03/13/2014US20140072024 Carrier recovery in amplitude and phase modulated systems
03/13/2014US20140071997 Robust preamble for communication over noisy media
03/13/2014US20140071962 Transmitting apparatus, receiving apparatus, and communication system for formatting data
03/13/2014US20140071863 Apparatus and method for data transmission in wireless communication system
03/13/2014DE10135924B4 Amplitudendetektierverfahren und Schaltung Amplitudendetektierverfahren and circuit
03/12/2014EP2706715A2 Method and device for transmitting uplink control information having large payload in wireless access system
03/12/2014EP2706714A1 Signal processing device and method of processing at least two input signals for a transmitter of a communications device
03/12/2014EP2706713A1 Multi-carrier symbols with varying coding rates
03/12/2014EP2706680A2 Method for transmitting/receiving downlink control information in wireless communication system and device therefor
03/12/2014EP2705639A2 Methods of pdcch capacity enhancement in lte systems based on a tp-specific reference signal
03/12/2014EP2705638A2 Methods and systems of wireless communication with remote radio heads
03/12/2014EP2705618A1 Digital output power measurement in radio communication systems
03/12/2014EP2705468A1 Method and device for modulating the amplitude of an electromagnetic signal transmitted by a wireless transceiver
03/12/2014CN203482230U USB modem with aromatherapy function
03/12/2014CN203482229U Modem with voice and video functions
03/12/2014CN103634712A Self-mixing homodyne detection passive optical access system for modulating and demodulating 32QAM-OFDM downlink signal by virtue of DMT
03/12/2014CN103634711A Orthogonal frequency division multiplexing passive optical network system based on optical carrier suppression and sub carrier separation technology and transmission method of system
03/12/2014CN103634263A Continuous-phase frequency-shift keying digital demodulation device and demodulation method implemented by same
03/12/2014CN103634262A Underwater acoustic coherent communication self-adaptive phase compensation method
03/12/2014CN103634261A Method for digital television emission system to solve distortion of direct frequency conversion I and Q data
03/12/2014CN103634260A SC-IFDMA (single carrier-interleaved frequency division multiple access) communication method based on SIM (subscriber identity module) modulation
03/12/2014CN103634259A Multi-antenna single carrier wave frequency division multi-address system timing synchronous parallel interference eliminating method
03/12/2014CN103634258A Communication system, communication device, and reception device
03/12/2014CN103634257A Digital signal modulation device and method
03/12/2014CN103634256A Baseband signal sidelobe power suppression and sidelobe power suppression method and device
03/12/2014CN103634255A Method for rapidly estimating MSK signal carrier
03/12/2014CN103634254A Indirect modulation and demodulation data transmission device and transmission method thereof
03/12/2014CN103634253A RFID (Radio Frequency Identification) reader and ASK (Amplitude-Shift Keying) modulation method and circuit thereof
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