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)
10/2008
10/15/2008EP1981204A1 Signaling method in an OFDM multiple access system
10/15/2008EP1981192A1 Modulation parameter selecting method, modulation parameter selecting apparatus and communication apparatus
10/15/2008EP1980076A1 Method for transmitting signals in a radio communication system
10/15/2008EP1980075A1 Radio communication system
10/15/2008EP1980074A2 Fec streaming with aggregation of concurrent streams for fec computation
10/15/2008EP1980073A1 Cartesian modulation system via multi-level pulse width modulation
10/15/2008EP1980071A2 Estimation of length of channel impulse response
10/15/2008EP1980045A1 An apparatus and method for hybrid automatic repeat request
10/15/2008EP1980035A2 Pilot signal in an fdma communication system
10/15/2008EP1980033A1 Predetermined transmission mode sequence and feedback reduction technique
10/15/2008EP1980030A1 Method for improved synchronization and information transmission in a communication system
10/15/2008EP1980029A2 Method and arrangement in a telecommunication system
10/15/2008EP1979885A1 Method for transmitting and receiving traffic information and apparatus thereof
10/15/2008EP1599982B1 Method and system for acquiring a received impulse radio signal
10/15/2008EP1570588B1 Apparatus and method for signal constitution for downlink of ofdma-based cellular system
10/15/2008EP1382172B1 Enhanced wireless packet data communication system, method, and apparatus apllicable to both wide area networks and local area networks
10/15/2008EP1192729B1 Pure delay estimation
10/15/2008EP1145449B1 Hardware-efficient transceiver with delta-sigma digital-to-analog converter
10/15/2008EP1091516B1 Base station device and method of suppressing peak current
10/15/2008CN201134811Y Circuit equipment of digital rail
10/15/2008CN101288282A Method and apparatus in a wireless terminal for measuring and compensation DC noise on the dc tone of a multi-carrier communication
10/15/2008CN101288243A Establishing additional reverse link carriers in multi-carrier wireless system
10/15/2008CN101287965A Demodulation of phase modulated fibre-optic sensor system signals
10/15/2008CN101287260A Quality uploading method and apparatus of downlink
10/15/2008CN101287146A Pilot sending and receiving method and device for special carrier
10/15/2008CN101286973A Signal-noise ratio estimation method for high-order orthogonal amplitude modulation technique
10/15/2008CN101286972A Carrier recovery method and system therefor
10/15/2008CN101286971A System and method for adaptive frame length control in OFDM system
10/15/2008CN101286970A Method for transmitting rank indication signaling on share channel of physical uplink
10/15/2008CN101286969A Timing error correcting device for orthogonal frequency division multiplexing based on changeable delay
10/15/2008CN101286968A Channel estimation method
10/15/2008CN101286967A Method and device for frequency domain compensation for channel estimation at an over sampling rate
10/15/2008CN101286966A OFDM system adapted to multi-program transmission therefore
10/15/2008CN101286965A Demodulator with multiple operating modes for amplitude shift keyed signals
10/15/2008CN101286964A 频率校正 Frequency correction
10/15/2008CN101286831A Time-delay correcting method and device for carrier channel
10/15/2008CN101286827A 分组传输系统和分组传输方法 Packet transmission system and packet transmission method
10/15/2008CN101286822A Transmission method in orthogonal frequency division multiplexing system with MIMO and transceiver thereof
10/15/2008CN101286807A OFDM frequency spectrum distributing method by identifying radio network based on interference of receiver
10/15/2008CN101286774A Interleaved multiplexing transmitter system, interleaved duplex transmitter and data processing method
10/15/2008CN101286773A Transmitting device for data modulated by space-time block code with MIMO and method thereof
10/15/2008CN101286760A Channel estimating device and method in orthogonal frequency division multiplexing system
10/15/2008CN101286757A Anti-jamming method and device in phase tracing
10/15/2008CN101286753A Lead code sending and receiving method for wideband wireless communication system
10/15/2008CN100426713C Error correcting communication method and communication apparatus to which this communication method is applied
10/15/2008CN100426709C Method and device for producing received used codes in CDMA radio communication system
10/15/2008CN100426690C System and method for a direct conversion multi-carrier processor
10/15/2008CN100426684C 2-carrier receiving module and multiple-carrier base station receiver
10/14/2008US7436916 Pulse modulator and PPM demodulation determining circuit employed in ultra wideband wireless communications
10/14/2008US7436914 Methods and apparatus for providing television signals
10/14/2008US7436913 Automatic gain control apparatus
10/14/2008US7436909 Method for estimating time of arrival of received signals for ultra wide band impulse radio systems
10/14/2008US7436908 UWB transceiving apparatus and method for dynamically reducing interference
10/14/2008US7436907 Analog compression of GPS C/A signal to audio bandwidth
10/14/2008US7436906 Synchronous detector with high accuracy in detecting synchronization and a method therefor
10/14/2008US7436905 Receiver device, communications device, wireless LAN device, power control method for a receiver device, power control program for a receiver device, and storage medium
10/14/2008US7436902 Multi-dimensional space Gray code maps for multi-dimensional phase modulation as applied to LDPC (Low Density Parity Check) coded modulation
10/14/2008US7436901 Selection of channel coding and multidimensional interleaving schemes for improved performance
10/14/2008US7436900 Intermodulation distortion identification and quantization circuit for a linear amplifier system
10/14/2008US7436899 Method and apparatus for data transfer using wideband bursts
10/14/2008US7436898 Integrated circuit (IC) card, data transmission apparatus, data transmission method and computer program of data transmission method
10/14/2008US7436897 OFDM receiving apparatus and receiving method thereof
10/14/2008US7436894 Method and apparatus for efficient bandwidth communication
10/14/2008US7436893 Multiuser allocation method for maximizing transmission capacity
10/14/2008US7436892 Method and apparatus for coding in a telecommunications system
10/14/2008US7436878 Method and apparatus for efficient carrier bin search for a composite spreading code
10/14/2008US7436812 System for oderwire modulation
10/14/2008US7436802 Frequency hopping method in orthogonal frequency division multiplexing system
10/14/2008US7436263 Apparatus and method for presenting a modulated output signal at an output locus
10/14/2008CA2512686C A method for synchronization of received signals
10/14/2008CA2400501C Chirp slope multiple access
10/14/2008CA2282312C Receiver apparatus, and associated method, for receiving a receive signal transmitted upon a channel susceptible to interference
10/09/2008WO2008121627A1 Digital radio system and method of operation
10/09/2008WO2008121575A1 Method and apparatus for mitigating interference in multicarrier modulation systems
10/09/2008WO2008121362A1 Hierarchical offset compensation to improve synchronization and performance
10/09/2008WO2008121300A2 A system and method for extending a serial protocol to create a network in a well monitoring environment
10/09/2008WO2008120402A1 Method of demapping data symbols for decoding in a wired communication system
10/09/2008WO2008119891A1 Improved link adaptation method
10/09/2008WO2008119429A1 Digital demodulator and method for demodulating analogue television signals
10/09/2008WO2008119223A1 Ofdm/ofdma channel estimation
10/09/2008WO2008092277A8 Multi-carrier modulation scheme using an identification sequence
10/09/2008WO2008089402A3 System and method for incorporating dynamic orthogonal frequency-division multiplexing into wireless network protocols
10/09/2008WO2008089215A3 Reduced state trellis decoder using programmable trellis parameters
10/09/2008WO2008052001A3 Guard independent signal mapping
10/09/2008WO2004095715A3 Additive digital predistortion system employing parallel path coordinate conversion
10/09/2008WO2002067520A8 Estimating frequency offset
10/09/2008US20080248806 Cellular Radiotelephone Signal Permitting Synchronization of a Supplementary Channel by Means of a Principal Channel and Corresponding Method, Terminal and Base Station
10/09/2008US20080248746 Diversity System for Transmitting a Signal with Sub-Carriers
10/09/2008US20080247494 Wireless Receiver For Sorting Packets
10/09/2008US20080247493 METHODS, APPARATUS, AND SYSTEMS FOR DETERMINING 1T STATE METRIC DIFFERENCES IN AN nT IMPLEMENTATION OF A VITERBI DECODER
10/09/2008US20080247492 Signal Receiving Circuit and Signal Input Detection Circuit
10/09/2008US20080247491 Baseband time-domain communications system
10/09/2008US20080247486 Ultra wideband communication method with low noise pulse formation
10/09/2008US20080247485 Transmitting Apparatus, Receiving Apparatus and Transmitting/Receiving System for Digital Data
10/09/2008US20080247482 Ofdm Reception in Multi-Antenna Mode
10/09/2008US20080247481 Methods and systems for computing a minimum variance unbiased estimator of carrier and sampling clock frequency
10/09/2008US20080247480 Methods and systems for detecting a narrow-band interferer
10/09/2008US20080247479 Pilot Scheme For A Mimo Communication System
10/09/2008US20080247477 Block Scrambling for Orthogonal Frequency Division Multiple Access
10/09/2008US20080247476 Method and Synchronizer for Fine Ofdm Symbol Synchronization and Method/Receiver for the Reception of Ofdm Symbols
1 ... 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 ... 898