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)
05/2012
05/09/2012EP2449687A1 Method and apparatus for compensating for transceiver impairments
05/09/2012EP2449684A1 Multicarrier radio receiver and method for receiving multiple carriers
05/09/2012EP1735933B1 Dual mode communication systems and methods
05/09/2012EP1421709B1 Method for physical layer automatic repeat request for a subscriber unit
05/09/2012EP1010265B1 A method for demodulating information in a communication system that supports multiple modulation schemes
05/09/2012CN202218303U Low temperature modulator
05/09/2012CN1996785B Forwarding system and its method for the broadband wireless access
05/09/2012CN1943143B Apparatus and method for controlling transmission power in communication systems using orthogonal frequency division multiple access scheme
05/09/2012CN1909529B 3780-point discrete fourier transformation processor
05/09/2012CN1864375B Method and apparatus for transmitting wireless signals on multiple frequency channels in a frequency agile network
05/09/2012CN1700688B 追踪系统 Tracking System
05/09/2012CN1501653B Receiving apparatus, transmitting apparatus, and reception method
05/09/2012CN102450060A Methods and arrangements in a telecommunication system
05/09/2012CN102449972A Method and device for processing a digital complex modulated signal within a polar modulation transmission chain
05/09/2012CN102449971A Downlink assignment indicator design for multi-carrier wireless communication
05/09/2012CN102449970A Integrated circuit with channel estimation module and method therefor
05/09/2012CN102449969A Circuits for soft logical functions
05/09/2012CN102449968A Improved feed-forward carrier recovery system and method
05/09/2012CN102449950A Method and apparatus for symbol timing recovery
05/09/2012CN102449943A Transmitter for multi-format data
05/09/2012CN102448176A Resource scheduling method and resource scheduling device in multi-carrier communication system
05/09/2012CN102448082A Method and system for detecting public search space of relay node
05/09/2012CN102447668A Method for configuring high order modulation for user equipment in cell forward access channel (C_FACH) state and devices
05/09/2012CN102447667A Data processing method and system based on network coding
05/09/2012CN102447666A Wireless ethernet modem and physical layer signal transmission method
05/09/2012CN102447665A Method for reducing peak-to-mean ratio of DTMB embedded multi-service system
05/09/2012CN102447664A Method for processing double-pole orthogonal precoding in orthogonal frequency-division multiplexing system and device thereof
05/09/2012CN102447663A Digital correction of analog polyphase filters
05/09/2012CN102447662A Method and device for configuring subcarriers in multi-carrier communication system and terminal equipment
05/09/2012CN102447661A FSK signal generating circuit
05/09/2012CN102447660A Realization method of FSK communication software modulation and demodulation of telephone POS
05/09/2012CN102447658A Method and device for suppressing and merging interference
05/09/2012CN102447656A Method for processing received OFDM data symbols and OFDM baseband receiver
05/09/2012CN102447654A Low-complexity and high-performance channel estimating method and device
05/09/2012CN102447623A Cascade method of optical network frequency spectrum resource fragments and apparatus thereof
05/09/2012CN102447540A Data transmission method and equipment
05/09/2012CN102447532A Preamble detection method and device for same
05/09/2012CN102447528A Superposition coding in wireless communication system
05/09/2012CN102447519A Method and apparatus for transmitting digital multimedia broadcast
05/09/2012CN102447498A Realizing method and device of multiple transmit antenna MIMO (multi-input multi-output) system
05/09/2012CN101888358B Transmission method for reducing computational complexity of two-way relay nodes based on network coding
05/09/2012CN101835167B Frequency spectrum synchronization method for dynamic frequency spectrum access of discontinuous frequency spectrum OFDM (Orthogonal Frequency Division Multiplexing)
05/09/2012CN101795253B Frequency-residence differential frequency modulation keying modulated communication method
05/09/2012CN101695064B Method and device for reducing OFDM signal peak-to-average ratio
05/09/2012CN101626357B Carrier synchronization method of MPSK system based on maximum likelihood estimation
05/09/2012CN101616360B Method and system for sending positioning reference signal
05/09/2012CN101534269B Underwater sound communication system
05/09/2012CN101521645B Digital broadcasting receiver and method of signal processing in the system
05/09/2012CN101499986B Base station and scheduling method used in base station
05/09/2012CN101483633B OFDM synchronization method
05/09/2012CN101399796B Method and device for received frame processing for time division system
05/09/2012CN101388870B Resource allocation signaling generating method based on OFDM system
05/09/2012CN101388744B Adaptive encoding modulation method
05/09/2012CN101388729B Phase unbalance monitoring device, amplitude unbalance monitoring device and device using them
05/09/2012CN101378299B Transmission diversity method base on null-frequency encoding
05/09/2012CN101374135B Device and method for constructing frame structures
05/09/2012CN101355539B Transmission method for multi-carrier synchronization CDMA
05/09/2012CN101345733B Multi-user OFDM modulation method based on imbedded training sequence and BICM
05/09/2012CN101331726B Method and device for signal processing
05/09/2012CN101309247B Frequency offset estimation and compensation process and base frequency process module
05/09/2012CN101286973B Signal-noise ratio estimation method for high-order orthogonal amplitude modulation technique
05/09/2012CN101204058B Frame synchronization device and frame synchronization method
05/09/2012CN101199178B Communication device, communication system, and modulating method
05/09/2012CN101147373B Method, device and system for platform noise mitigation in OFDM receivers
05/09/2012CN101056299B Self-adapting peak value limiter and multiple carrier wave sending device
05/09/2012CN101048948B Clear channel assessment (CCA) for UWB communications system
05/08/2012US8176398 DSL trellis encoding
05/08/2012US8175199 Wireless receiver
05/08/2012US8175196 Channel equalizer and method of processing broadcast signal in receiving system
05/08/2012US8175195 Method for detecting paths in pulse transmission and a device for carrying out said method
05/08/2012US8175193 Apparatus for recovering carrier wave in digital broadcasting receiver and method therefor
05/08/2012US8175192 Method and system for determining and removing DC offset in communication signals
05/08/2012US8175190 Managing spectra of modulated signals in a communication network
05/08/2012US8175188 Reduced complexity multicarrier precoder
05/08/2012US8175187 Wireless communication apparatus for suppressing interference while reducing transmission delay
05/08/2012US8175186 Preserving the content of a communication signal corrupted by interference during transmission
05/08/2012US8175185 RF polar transmitter and integrated circuit with programmable filter module and methods for use therewith
05/08/2012US8175179 Calculating peak-to-average power ratio reduction symbols for multi-carrier modulated signals using a gradient-descent approach
05/08/2012US8175178 Orthogonal frequency division multiplexing (OFDM) communications device and method that incorporates low PAPR preamble and variable number of OFDM subcarriers
05/08/2012US8175177 Peak to average power ratio reduction
05/08/2012US8175174 Communication system, communication method, transmitting apparatus and receiving apparatus
05/08/2012US8175140 Systems and methods for a multicarrier transceiver with radio frequency interference reduction
05/08/2012US8175070 Communication method, and transmitting apparatus and receiving apparatus using that communication method
05/08/2012US8175032 System and method for radio frequency resource allocation
05/08/2012US8174956 Systems and method for orthogonal frequency divisional multiplexing
05/08/2012CA2591273C Apparatus for transmitting and receiving data to provide high-speed data communication and method thereof
05/08/2012CA2422627C Active terminating device with optional line-receiving and line-driving capabilities
05/08/2012CA2389470C Method and apparatus for transmission and reception of fm in-band on-channel digital audio broadcasting
05/03/2012WO2012058600A2 System and method of frequency offset compensation for radio system with fast doppler shift
05/03/2012WO2012058197A1 Multiple signal transformation in wireless receivers
05/03/2012WO2012057573A2 Digital i/q imbalance compensation in a quadrature receiver
05/03/2012WO2012057571A2 Method and apparatus for transmitting control information
05/03/2012WO2012057526A2 Method and apparatus for transmitting control information
05/03/2012WO2012057480A2 Method for transmitting control information in a wireless communication system, and device therefor
05/03/2012WO2012056927A1 Power line communication system
05/03/2012WO2012056403A1 Soft value generation using serial localization with indecision
05/03/2012WO2012055662A1 Transmission of a data packet having two reference sequences and corresponding receiver comprising an equaliser
05/03/2012WO2012055344A1 Method, apparatus and receiving device for estimating narrow-band interference
05/03/2012WO2012055229A1 Method and system for using sounding channel
05/03/2012WO2012055220A1 Codebook selection and modulation method for overcoming weak scattering in multiple input multiple output-orthogonal frequency division multiplexing (mimo-ofdm) system
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