Patents for H04L 27 - Modulated-carrier systems (89,721)
03/2009
03/11/2009CN100469071C Sideband information transmitting and frame synchronizing method and apparatus in OFDM communication system
03/11/2009CN100469070C Wavelet packet multi-carrier spread-spectrum system and control method based on neural net equalizer
03/11/2009CN100469069C Rate selection for an OFDM system
03/11/2009CN100469068C Method for realizing phase modulation carrier wave based on quadrature modulation used for digital broadcasting (DRM)
03/11/2009CN100469026C Handoff system using an initial ranging scheme in a broadband wireless access communication system and method for controlling the same
03/11/2009CN100468998C Method and device for establishing synchronization with synchronization signal
03/11/2009CN100468995C Detector and method for continuous phase position sequence
03/11/2009CN100468989C Method for adapting single frequency net in digital broadcasting satellite system
03/10/2009US7502987 Apparatus and method for encoding and decoding block low density parity check codes with a variable coding rate
03/10/2009US7502766 Neural networks decoder
03/10/2009US7502469 Method to generate a pseudo random sequence of multi carrier data symbols, and related transmitter and receiver
03/10/2009US7502432 Weight generation method for multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining based upon minimum bit error rate
03/10/2009US7502431 Method and apparatus for estimating response characteristic, and receiving method and receiver utilizing the same
03/10/2009US7502428 Pseudo-noise encoded digital data clock recovery
03/10/2009US7502427 Asynchronous servo RRO detection employing interpolation
03/10/2009US7502426 Method for estimating signal magnitude, noise power, and signal-to-noise ratio of received signals
03/10/2009US7502425 Efficient reduced complexity windowed optimal time domain equalizer for discrete multitone-based DSL modems
03/10/2009US7502424 Maximizing data rate by adjusting codes and code rates
03/10/2009US7502423 Digital modulator and digital modulation method
03/10/2009US7502422 Electromagnetic wave transmitter systems, methods and articles of manufacture
03/10/2009US7502420 Method and apparatus for determining power allocation in a MIMO communication system
03/10/2009US7502406 Automatic power control system for a code division multiple access (CDMA) communications system
03/10/2009US7502357 Radio communication system and transmitter
03/10/2009US7502311 Method and apparatus for detecting a cell in an orthogonal frequency division multiple access system
03/10/2009US7502310 Apparatus and method for assigning subchannel in a mobile communication system using orthogonal frequency division multiple access scheme
03/05/2009WO2009029946A1 Ofdm modem using pilot sub-carrier structure
03/05/2009WO2009029511A1 Method and apparatus for reliably transmitting radio blocks with piggybacked ack/nack fields
03/05/2009WO2009028912A2 Apparatus for transmitting and receiving a signal and method for transmitting and receiving a signal
03/05/2009WO2009028911A2 Apparatus for transmitting and receiving a signal and method for transmitting and receiving a signal
03/05/2009WO2009028814A2 Method for transmitting signals for increasing the amount of data transmission
03/05/2009WO2009028729A2 Communication apparatus and method
03/05/2009WO2009027953A2 Differential channel quality reporting
03/05/2009WO2009027261A2 Estimating a signal-to-interference ratio in a receiver of a wireless communications system
03/05/2009WO2009008770A3 Method for transmitting and receiving quadrature amplitude modulation signals, a system for carrying out said method, a machine-readable carrier and the use of a method for synchronously receiving quadrature amplitude modulation signals
03/05/2009WO2008150144A3 Methods and apparatus for channel interleaving in ofdm systems
03/05/2009WO2008137648A3 Sampling clock offset tracking and symbol re-timing
03/05/2009US20090063924 Hybrid arq retransmission with reordering scheme employing multiple redundancy versions and receiver/transmitter therefor
03/05/2009US20090061783 Access point, mobile station for wireless communication system, and method for controlling the same
03/05/2009US20090060104 Apparatus and Method for RF Packet Detection and Symbol Timing Recovery
03/05/2009US20090060103 Channel estimation apparatus and method for the same
03/05/2009US20090060102 Fast predictive automatic gain control for dynamic range reduction in wireless communication receiver
03/05/2009US20090060101 Method and apparatus for carrier frequency offset synchronization of orthogonal frequency division multiplexing receivers
03/05/2009US20090060100 Wireless communication apparatus and wireless communication method
03/05/2009US20090060099 Devices for carrier recovery and related methods
03/05/2009US20090060098 Algorithm for multiple-symbol differential detection
03/05/2009US20090060097 Digital broadcasting transmission and reception devices and methods thereof
03/05/2009US20090060096 Multi-transport stream (ts) generating apparatus and method, and digital broadcasting transmission and reception apparatuses and methods
03/05/2009US20090060095 Methods, apparatuses, and computer program products for classifying uncertain data
03/05/2009US20090060094 Transmitting/receiving apparatus and method for interleaver division multiple access system
03/05/2009US20090060093 Multi-function decoder engine in wireless receiver
03/05/2009US20090060091 Low-power, low-area high-speed receiver architecture
03/05/2009US20090060090 Transmitter and receiver
03/05/2009US20090060089 Polar modulation transmitter circuit and communications device
03/05/2009US20090060088 Detecting the number of transmit antennas in a base station
03/05/2009US20090060087 Digital broadcasting system and data processing method thereof
03/05/2009US20090060086 Terminal aware multicasting
03/05/2009US20090060085 System and method for wrist band transmitter and system thereof
03/05/2009US20090060084 Data receiver apparatus and data transmitter apparatus
03/05/2009US20090060077 Wireless communication base station apparatus and pilot signal disposing method
03/05/2009US20090060076 System access and synchronization methods for mimo ofdm communications systems and physical layer packet and preamble
03/05/2009US20090060075 OFDM Modem Using Pilot Sub-Carrier Structure
03/05/2009US20090060074 Wireless communications apparatus
03/05/2009US20090060072 Decoding method for receiving ofdm signals, and decoding apparatus and receiving apparatus using the same
03/05/2009US20090060071 Demodulation method for receiving ofdm signals, and demodulation apparatus and receiving apparatus using the same
03/05/2009US20090060070 Apparatus and Method for Peak Suppression in Wireless Communication Systems
03/05/2009US20090060069 Signal transmitting apparatus, method thereof, and inverse fast fourier transform apparatus for signal transmitting apparatus
03/05/2009US20090060066 Communication system and method for transmitting signals to a plurality of different types of receivers
03/05/2009US20090060065 Communication system and method for receiving high priority and low priority signals
03/05/2009US20090060064 OFDM Communication System, Method for Generating Feedback Information Thereof, and Communication Apparatus
03/05/2009US20090060063 Method and Apparatus for Robust Control Signaling Distribution in OFDM Systems
03/05/2009US20090060061 Communication apparatus, communication method, and integrated circuit
03/05/2009US20090060060 Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication system
03/05/2009US20090060021 Multi-tap decision feedback equalizer (dfe) architecture eliminating critical timing path for higher-speed operation
03/05/2009US20090060020 Method and apparatus for estimating and correcting baseband frequency error in a receiver
03/05/2009US20090060019 Equalizer system and filtering method
03/05/2009US20090060017 Selectable-Tap Equalizer
03/05/2009US20090060016 Method of estimating inter-carrier interference (ici) and ici mitigating equalizer
03/05/2009US20090060011 Reuse of digital interface for multiple components
03/05/2009US20090059903 Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones
03/05/2009US20090059893 Configuration of overhead channels in a mixed bandwidth system
03/05/2009US20090059849 Communication apparatus and communication method
03/05/2009US20090059830 Method of signalling, a communication system and a communication equipment
03/05/2009US20090059782 Method and apparatus for extending the transmission capability of twisted pair communication systems
03/05/2009US20090059087 Digital broadcasting transmission/reception system utilizing srs and trs code to improve receiving performance and signal processing method thereof
03/05/2009US20090058726 Wireless communication apparatus using fast fourier transforms to create, optimize and incorporate a beam space antenna array in an orthogonal frequency division multiplexing receiver
03/05/2009CA2704936A1 Method and apparatus for reliably transmitting radio blocks with piggybacked ack/nack fields
03/05/2009CA2697671A1 Ofdm modem using pilot sub-carrier structure
03/04/2009EP2031892A1 Base station device
03/04/2009EP2031815A2 Method and apparatus for ICI cancellation in communication systems
03/04/2009EP2031790A1 Estimating a signal-to-interference ration in a receiver of a wireless communications system
03/04/2009EP2031789A2 Apparatus for transmitting and receiving a signal and method for transmitting and receiving a signal
03/04/2009EP2031788A1 Communication device for receiving and transmitting OFDM signals in a wireless communication system
03/04/2009EP2031786A2 Apparatus and method for transmitting and receiving an OFDM signal
03/04/2009EP2031781A1 Transmitter and receiver for digital broadcasting
03/04/2009EP2031771A2 Communication system and method of receiving high priority signals and low priority signals
03/04/2009EP2030398A2 Encoding information in beacon signals
03/04/2009EP2030397A2 Encoding information in beacon signals
03/04/2009EP2030396A2 Encoding information in beacon signals
03/04/2009EP2030395A2 Signal acquisition for wireless communication systems
03/04/2009EP2030394A2 Method of transmitting data in a mobile communicaiton system