Patents for H04L 27 - Modulated-carrier systems (89,721)
10/2011
10/04/2011US8031818 Method and apparatus for fine frequency synchronization in wireless broadband (WiBro) system without using global positioning system (GPS) receiver
10/04/2011US8031814 Apparatus and method for estimating channel in multi antenna wireless communication system
10/04/2011US8031813 VSB receiver and carrier recovery apparatus thereof
10/04/2011US8031812 Method and circuit arrangement for symbol decision upon the reception of a signal including a quadrature signal pair
10/04/2011US8031807 Systems and methods for detecting the presence of a transmission signal in a wireless channel
10/04/2011US8031806 Mixed mode preamble for MIMO wireless communications
10/04/2011US8031805 Beamforming by antenna puncturing
10/04/2011US8031803 Transmitter capable of suppressing peak of transmission signal
10/04/2011US8031802 Multi-channel signaling with equalization
10/04/2011US8031801 Method of controlling signal transmission in multi-input/multi-output system
10/04/2011US8031800 Transmitting digital signal
10/04/2011US8031795 Pre-processing systems and methods for MIMO antenna systems
10/04/2011US8031789 Methods and systems for diversity combining of synchronization statistics in OFDM systems
10/04/2011US8031788 OFDM reception in multi-antenna mode
10/04/2011US8031785 Transmission methods and apparatus in multi-band OFDM wideband systems
10/04/2011US8031619 Splitterless multicarrier modem
10/04/2011US8031028 Polar signal processor to drive a segmented power amplifier and method therefore
10/04/2011CA2625111C A soft demodulating method for 16qam in communication system
10/04/2011CA2566487C Time varying cyclic delay diversity of ofdm
09/2011
09/29/2011WO2011120031A2 Method and apparatus to adjust received signal
09/29/2011WO2011119897A2 Phase shift keyed optical communications
09/29/2011WO2011119006A2 Method and apparatus for transmitting ack/nack signals
09/29/2011WO2011118943A2 Method and device for transmitting control information
09/29/2011WO2011118940A2 Method and user equipment for transmitting uplink control information
09/29/2011WO2011118546A1 Communication device, communication system, and communication control method
09/29/2011WO2011118168A1 Wireless receiver and wireless receiving method
09/29/2011WO2011117673A1 Preamble structure for time-frequency acquisition in ofdm systems with multiple strong narrowband interference
09/29/2011WO2011116651A1 Method and apparatus for generating pilot sequence
09/29/2011WO2011056299A3 Frame structure for support of large delay spread deployment scenarios
09/29/2011WO2011051446A4 Use of semiconductor optical amplifiers-based intensity modulator in signal transmission
09/29/2011WO2011046387A3 Apparatus and method for transmitting and receiving reference signal (rs) for demodulation
09/29/2011US20110239086 Method and system for routing in low density parity check (ldpc) decoders
09/29/2011US20110236026 Robot cleaner, docking station, robot cleaner system including robot cleaner and docking station, and method of controlling robot cleaner
09/29/2011US20110235758 Mixed-Mode Receiver Circuit Including Digital Gain Control
09/29/2011US20110235757 Decoding method and decoding device
09/29/2011US20110235756 Signal loss detector for high-speed serial interface of a programmable logic device
09/29/2011US20110235755 Mimo radio system with antenna signal combiner
09/29/2011US20110235754 Method and a device for determining if an information word transferred by at least a source has to be relayed
09/29/2011US20110235753 Wireless communication device and wireless communication method
09/29/2011US20110235752 Communication method and radio communication apparatus
09/29/2011US20110235751 Data transmission device and method thereof, and data reception device and method thereof
09/29/2011US20110235747 Signaling method in an ofdm multiple access system
09/29/2011US20110235746 Signaling method in an ofdm multiple access system
09/29/2011US20110235745 Signaling method in an ofdm multiple access system
09/29/2011US20110235744 Pilots for mimo communication systems
09/29/2011US20110235743 Method and base station for receiving reference signal, and method and user equipment for receiving reference signal
09/29/2011US20110235742 High power pulse generator
09/29/2011US20110235741 Radio communication apparatus
09/29/2011US20110235740 Signal generation device and signal generation method
09/29/2011US20110235739 Frequency converter and transmitter
09/29/2011US20110235733 Signaling method in an ofdm multiple access system
09/29/2011US20110235732 Ofdm transmission and reception for non-ofdm signals
09/29/2011US20110235731 Method and system for multiple-input multiple-output mode control
09/29/2011US20110235729 Receiver with High Performance Channel Estimation
09/29/2011US20110235728 Increased capacity communications for ofdm-based wireless communications systems/methods/devices
09/29/2011US20110235727 Communication channel calibration with nonvolatile parameter store for recovery
09/29/2011US20110235726 Method and apparatus for updating channel information in mobile communication terminal
09/29/2011US20110235695 High-speed continuous-time feedback equalizer for serial link receiver
09/29/2011US20110235688 Receiving device
09/29/2011US20110235628 Signaling format for wlans
09/29/2011US20110235619 Enhanced frequency diversity technique for systems with carrier aggregation
09/28/2011EP2369804A2 Acquisition in frequency division multiple access systems
09/28/2011EP2369803A1 Joint use of multi-carrier and single-carrier multiplexing schemes for wireless communication
09/28/2011EP2369802A2 Signal generation device and signal generation method employing a transmission method using inverse Fourier transform
09/28/2011EP2369799A1 Receiver with high performence channel estimation
09/28/2011EP2369781A1 Guaranteed QOS in low-power mode
09/28/2011EP2369773A1 Communication system, communication station, communication terminal, and method of communication
09/28/2011EP2369746A2 Multi-stage code generator and decoder for communication systems
09/28/2011EP2368346A2 Methods and systems for dl-map processing
09/28/2011EP2368345A2 Channel estimation method and apparatus for wireless communication system
09/28/2011EP2368320A2 Linear and polar dual mode transmitter circuit
09/28/2011EP2209275B1 Multicarrier radio communication system utilizing a radio frame format suitable for reducing peak power
09/28/2011EP2176948B1 Method and arrangement for production of a frequency-modulated signal
09/28/2011EP1661321B1 Variable sdma ack timeout
09/28/2011EP1433295B1 Method for verifying the availability of a signal component and device for carrying out said method
09/28/2011CN201994959U 扩展的二元相移键控调制解调器 Extended binary phase shift keying modem
09/28/2011CN1891007B Method and apparatus for allocating a pilot signal adapted to the channel characteristics
09/28/2011CN1868152B Method and apparatus for transmission and reception within an OFDM communication system
09/28/2011CN1852048B Public signal emitting method and device in multi-antenna system
09/28/2011CN1842877B Method for polling in digital radio communication system, and method for searching vehicles
09/28/2011CN102204204A A method for realizing pulse synchronization and a device thereof
09/28/2011CN102204203A Method and apparatus for wireless transmissions using multiple uplink carriers
09/28/2011CN102204201A Method and apparatus for compatibly realizing pdm-bpsk and qpsk modulation
09/28/2011CN102204197A OFDM channel estimation method and apparatus
09/28/2011CN102204196A Channel estimation in OFDM receivers
09/28/2011CN102204153A Identification of packet traffic transmitted by various devices operated in multiple overlapped frequency bands in packet-based OFDM systems
09/28/2011CN102204133A Optical signal processing method and apparatus
09/28/2011CN102203869A Spin torque transfer cell structure utilizing field-induced antiferromagnetic or ferromagnetic coupling
09/28/2011CN102202403A Resource allocation method of a multi-user multi-input single-output-orthogonal frequency division multiple access system
09/28/2011CN102202346A Method and device for data mapping
09/28/2011CN102202341A SNPL reporting and updating method and terminal of multi-carrier HSUPA system
09/28/2011CN102202248A Orthogonal frequency division multiplexing passive optical network system
09/28/2011CN102202035A Irregular symbol constellation point soft-demapping realization method for communication system
09/28/2011CN102202034A Method for extracting delay inequality of multiple coherent signals
09/28/2011CN102202033A Radio communication system, transmission apparatus, and reception apparatus
09/28/2011CN102202032A Orthogonal frequency division multiplexing (OFDM) frequency offset compensation method and system
09/28/2011CN102202031A Amble modulation series
09/28/2011CN102202030A Data transmission system and method suitable for wired and wireless fusion of AMI (Advanced Metering Infrastructure)
09/28/2011CN102202029A Channel estimation method and device for orthogonal frequency division multiplexing system
09/28/2011CN102202028A Method for designing cognitive high-speed wireless communication system under discrete spectrum condition