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)
10/2009
10/28/2009CN100556018C Frequency offset estimating method and frequency offset correcting apparatus utilizing said method
10/28/2009CN100556017C Method of transmitting preamble for synchronization in a MIMO-OFDM system
10/28/2009CN100556016C Clipping circuit and radio transmission device using the same
10/28/2009CN100555928C Method of mixed automatic request of retransmission based on orthogonal frequency division multiplex
10/28/2009CN100555893C Pilot sequence generating method, apparatus and cell initial search method and system
10/28/2009CN100555891C Transmitter
10/27/2009US7610500 Link power saving state
10/27/2009US7610028 Method and system for reduction of peak-to-average power ratio of transmission signals comprising overlapping waveforms
10/27/2009US7609974 Data transmission method and a system thereof
10/27/2009US7609788 Receiver apparatus using maximum-likelihood-determination
10/27/2009US7609787 Reception of a signal modulated according to a multilevel coding technique
10/27/2009US7609786 Channel estimation for a communication system using spectral estimation
10/27/2009US7609785 Mitigation of interference in cell search by wireless transmit and receive units
10/27/2009US7609779 RF transmitter with interleaved IQ modulation
10/27/2009US7609777 Maximum likelihood a posteriori probability detector
10/27/2009US7609775 Radio communication apparatus and communication method
10/27/2009US7609774 Beamforming transceiver architecture with enhanced channel estimation and frequency offset estimation capabilities in high throughput WLAN systems
10/27/2009US7609773 Method of determining the location of the FFT window and the delay spread for the platinum broadcast channel estimator
10/27/2009US7609772 Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver
10/27/2009US7609771 Maximum ratio transmission
10/27/2009US7609757 DSL rate adaptation
10/27/2009US7609752 Transmitter and transmission control method used in random access communication environment
10/27/2009US7609750 Segment-wise channel equalization based data estimation
10/27/2009US7609712 Frequency offset differential pulse position modulation
10/27/2009US7609616 Sparse channel estimation for orthogonal frequency division multiplexed signals
10/27/2009US7609613 Cyclic delay diversity and space coded-hybrid diversity transmitter
10/27/2009US7609611 Method for transmitting an offset modulated biorthogonal multicarrier signal (BFDM/OM)
10/27/2009US7609610 Data transmission method, data reception method, transmission device and reception device using the same, and communication system using the same
10/27/2009US7609608 Method and apparatus for data transfer using a time division multiple frequency scheme with additional modulation
10/27/2009US7609147 Method and apparatus for improving wireless data transmission
10/27/2009US7609109 Contactless IC card system
10/27/2009CA2436174C Apparatus and method for detecting a power ratio between a traffic channel and a pilot channel in a mobile communication system
10/22/2009WO2009128681A2 Method for transmitting synchronization channel using multi-antenna
10/22/2009WO2009128657A2 Method for transmitting and receiving data using pilot structure
10/22/2009WO2009128643A2 Method and apparatus for communication in a tdd-based wireless communication system
10/22/2009WO2009128030A1 An improved dual carrier modulation precoding
10/22/2009WO2009127512A1 System and method of receiving and processing multicommunication signals
10/22/2009WO2009127511A1 Wireless communication methods and receivers for receiving and processing multiple component carrier signals
10/22/2009WO2009127357A2 Time-error and frequency-error correction in a multi-carrier wireless communications system
10/22/2009WO2009127262A1 An apparatus
10/22/2009WO2009127243A1 Method and digital communication device for calculating soft information for received qam symbols
10/22/2009WO2009108027A3 Method and system for transmitting and receiving signals
10/22/2009WO2009104931A3 Apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal
10/22/2009WO2009104909A3 Apparatus and method for estimating i/q unbalance parameters in ofdm receiver
10/22/2009WO2008086063A8 Method and apparatus for processing data at a wireless station
10/22/2009US20090265601 Mitigation of transmission errors of quantized channel state information feedback in multi antenna systems
10/22/2009US20090264142 Intercell interference mitigation
10/22/2009US20090263141 Dual use of test point power monitor
10/22/2009US20090262872 Receiver with prefiltering for discrete fourier transform-spread-orthogonal frequency division multiplexing (dft-s-ofdm) based systems
10/22/2009US20090262871 Receiver and method for detecting signal in multiple antenna system
10/22/2009US20090262870 Tuning system and method using a simulated bit error rate for use in an electronic dispersion compensator
10/22/2009US20090262869 Decision-Feedback Detection for Block Differential Space-Time Modulation
10/22/2009US20090262868 Signal decoder with general purpose calculation engine
10/22/2009US20090262867 Bitstream navigation techniques
10/22/2009US20090262866 Data carrier provided with at least two decoding stages
10/22/2009US20090262865 Carrier frequency offset estimating device and system
10/22/2009US20090262863 Amplitude control circuit, polar modulation transmission circuit and polar modulation method
10/22/2009US20090262862 Signal transmitting apparatus for ofdm system and parameter adjusting method thereof
10/22/2009US20090262861 Feedback Compensation Detector For A Direct Conversion Transmitter
10/22/2009US20090262860 Current interface with a blocking capacitor attached to an additional pin
10/22/2009US20090262859 Long training sequence for MIMO WLAN systems
10/22/2009US20090262858 Constellation rearrangement for arq transmit diversity schemes
10/22/2009US20090262855 Data symbol mapping for multiple-input multiple-output hybrid automatic repeat request
10/22/2009US20090262851 Radio transmitting apparatus and radio transmitting method
10/22/2009US20090262850 System and Method of Dynamically Optimizing a Transmission Mode of Wirelessly Transmitted Information
10/22/2009US20090262849 Universal Blind Mode Detector, Guard Mode Detector of The Universal Blind Mode Detector, and Method of Detecting Universal Blind Mode
10/22/2009US20090262848 Method of designing a multiplexing structure for resource allocation to support legacy system
10/22/2009US20090262846 Apparatus and method for transmitting pilot signal in wireless communication system
10/22/2009US20090262845 Method for transmitting and receiving data using pilot structure
10/22/2009US20090262844 Mobile station apparatus and transmission channel estimation method
10/22/2009US20090262843 MIMO Slow Precoding Method and Apparatus
10/22/2009US20090262842 Robust FFT Trigger Point Tracking for Echo Channels in OFDM Based Communication Systems
10/22/2009US20090262799 Transmitting additional information in the headers of encapsulating data packets in mobile/handheld (m/h) dtv signals
10/22/2009US20090262794 Digital transmitter
10/22/2009US20090262786 Polarization diversity
10/22/2009US20090262696 Mapping resource blocks into subchannels
10/22/2009US20090262692 Method and system for variable-sized resource block allocation within ofdma communication systems
10/22/2009US20090262641 Signaling method in an ofdm multiple access system
10/22/2009US20090261662 Method for supplying electrical energy from a first electronic circuit to a second electronic sircuit via at least one wire line
10/21/2009EP2111004A2 Mobile station apparatus and transmission channel estimation method
10/21/2009EP2110978A2 Constellation rearrangement for transmit diversity schemes
10/21/2009EP2109975A2 Methods and systems for resizing multimedia content based on quality and rate information
10/21/2009EP2109974A1 Channel estimation of multi-carrier signal with selection of time or frequency domain interpolation according to frequency offest of continuous pilot
10/21/2009EP2109973A2 Apparatus, method and computer program product providing dynamic sharing of resources between uplink and downlink allocations for separately coded users
10/21/2009EP2109948A1 Transmission of information using cyclically shifted sequences
10/21/2009EP2109942A1 Detection method and apparatus for a multi-stream mimo
10/21/2009EP2109941A1 Apparatus, and associated method, for operating upon received data at a receiving station capable of diversity operation
10/21/2009EP2109938A2 Jammer detection and suppression for wireless communication
10/21/2009EP1236368B1 Method for transmitting signalling information, a master station, a mobile station and message elements
10/21/2009EP1179254B1 Method of, and receiver for, detecting the presence of data
10/21/2009CN101563902A Method and apparatus for signal peak-to-average ratio reduction
10/21/2009CN101563901A Location of wideband OFDM transmitters with limited receiver bandwidth
10/21/2009CN101563900A Method for determining symbol synchronization information for OFDM signals and device thereof
10/21/2009CN101563899A Uplink inter-carrier interference cancellation for OFDMA systems
10/21/2009CN101563863A Cognitive multi-user OFDMA
10/21/2009CN101562897A Method for determining a random access leading sequence response transmit window as well as device and system thereof
10/21/2009CN101562874A Self-adapting bit power allocation method based on bit preallocation
10/21/2009CN101562598A Apparatus and method for adjusting quadrature modulator, and communication apparatus
10/21/2009CN101562597A Device and method for estimating and compensating sampling clock offset of handset television terminal
10/21/2009CN101562596A Onboard high-speed communication system based on OFDM technique
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