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)
10/2012
10/11/2012US20120257660 Techniques and systems for wireless communications
10/11/2012US20120257651 Method and apparatus to improve sensitivity of decoding time of a global navigation satellite system receiver
10/11/2012DE102007054201B4 Empfangsschaltkreis, Verwendung einer digitalen PLL-Struktur und Verfahren zum Empfangen eines Signals einer Frequenzumtastung Receiving circuit using a digital PLL structure and method for receiving a signal of a frequency shift keying
10/11/2012DE102006007716B4 GMSK-Modulator und -Verfahren, Vorrichtung und Verfahren zum Erzeugen von Wellenformdaten, digitale drahtlose Kommunikationsvorrichtung und entsprechendes Kommunikationsverfahren GMSK modulator, and methods, apparatus and method for generating waveform data, digital wireless communication apparatus and communication method corresponding
10/10/2012EP2509271A1 Data transmission method, data reception method, data modulation device, data demodulation device
10/10/2012EP2509270A2 Data processing apparatus and data processing method as well as decoding apparatus and decoding method
10/10/2012EP2509269A1 A transmitter stage and a corresponding method for signal transmission on mutiple compenent carriers in a telecommunication system
10/10/2012EP2509267A1 Pilot design for universal frequency reuse in cellular orthogonal frequency-division multiplexing systems
10/10/2012EP2509240A1 Receiver device and receiving method
10/10/2012EP2509215A2 Power amplifier circuit with means for tuning wave shape of ASK RF signal envelope, and method for implementing the power amplifier circuit
10/10/2012EP2507962A1 Method and device for reducing the electricity consumption associated with a communication line
10/10/2012EP2507961A1 A tensor-based receiver for separating component signals in a composite signal
10/10/2012EP2507960A1 Apparatus and method for channel estimation in a wireless communications system
10/10/2012CN202488485U Network convergence communication system based on frequency conversion amplifiers
10/10/2012CN202488484U Super Nyquist application device
10/10/2012CN1992566B Digital broadcasting system and method of processing traffic information
10/10/2012CN1883170B Channel estimation by adaptive interpolation
10/10/2012CN1758620B Fixed OFDM wireless MAN utilizing CPE having internal antenna
10/10/2012CN102726019A Transmission method, apparatus and system for utilizing carrier modulation
10/10/2012CN102726018A Method, apparatus and system for duplexing transmission of multi-carrier orthogonal frequency division multiplexing
10/10/2012CN102726017A Method, apparatus and system for improving clock recovering capacity
10/10/2012CN102726016A Apparatus and method for channel estimation in a wireless communications system
10/10/2012CN102726015A Method and arrangement in a telecommunication system
10/10/2012CN102725970A Automatic identification system receiver and satellite payload comprising the same
10/10/2012CN102724761A Dynamic resource allocation method for orthogonal frequency division multiple access (OFDMA) system
10/10/2012CN102724753A Arrival time difference rectification based wireless positioning method and terminal
10/10/2012CN102724749A Method, terminal and base station for uplink-downlink frame synchronization
10/10/2012CN102724163A MQAM signal modulation recognition method based on state statistical advantage
10/10/2012CN102724162A Multi-channel nuclear magnetic resonance radio frequency signal transmitter
10/10/2012CN102724161A Method and apparatus for generating training sequence code in a communication system
10/10/2012CN102724160A Signal detecting method in high-order modulated multi-input multi-output system
10/10/2012CN102724159A Interference elimination method and device for interfered residential area
10/10/2012CN102724158A Time-frequency synchronizing method for multi-input and multi-output orthogonal frequency-division multiplexing system
10/10/2012CN102724157A Union resource distributing method of improved-type multi-user OFDM (orthogonal frequency division multiplexing) DF (decoding-forwarding) system
10/10/2012CN102724156A Generation method as well as positioning method and device of time-division code-division orthogonal frequency division multiplexed signals
10/10/2012CN102724155A High frequency domain energy concentration synchronization method based on fractional Fourier transform
10/10/2012CN102724154A Adaptive relay transmission method of multi-hop wireless communication system
10/10/2012CN102724151A Communication system, communication method, multichannel adaptive equalizer and OFDM (orthogonal frequency division multiplexing) signal demultiplexing method
10/10/2012CN102724147A Channel estimation method for underwater sound orthogonal frequency division multiplexing
10/10/2012CN102724036A Continuous variable quantum key distribution system and synchronous realization method thereof
10/10/2012CN102723991A Modulation method suitable for atmosphere laser communication system
10/10/2012CN101980492B Orthogonal code multiplexing-based differential chaos shift keying modulation and demodulation method
10/10/2012CN101895921B Method for selecting coordinated multipoint cell
10/10/2012CN101867425B Available subcarrier detection and synchronization method for discontinuous OFDM dynamic spectrum access
10/10/2012CN101860509B Method and device for processing co-channel interference and communication system thereof
10/10/2012CN101839984B Navigational satellite signal receiver
10/10/2012CN101834822B Peak value offset method and device based on peak value elimination
10/10/2012CN101783724B Hybrid automatic retransmission method and system
10/10/2012CN101742615B Large bandwidth multi-carrier system and broadcast information updating method thereof
10/10/2012CN101710891B Method and device for generating frame synchronization sequence in digital communication system
10/10/2012CN101682594B Method and device for sending a transmission signal, in particular a mobile radio signal
10/10/2012CN101622813B Device and method for determining a transmission behavior of sub-channels
10/10/2012CN101616121B Orthogonal frequency division multiplexing receiver and receiving method thereof
10/10/2012CN101610090B Zero intermediate frequency transmitter and method for calibrating zero intermediate frequency transmitting signal
10/10/2012CN101567703B Fully digital ultra-broadband emitter
10/10/2012CN101557643B Method and system of radio resource allocation
10/10/2012CN101518150B Base station, mobile station, and pilot channel generation method
10/10/2012CN101496296B Receiver for digital broadcasting
10/10/2012CN101483453B Echo cancellation device of mobile multimedia system repeater and echo cancellation method
10/10/2012CN101478339B Method, apparatus and mobile terminal for implementing district searching precise time synchronization
10/10/2012CN101433104B Method for increasing spectrum efficiency in an OFDM based multi-bandwidth wireless system
10/10/2012CN101425989B Data transmission method and system used in OFDM system
10/10/2012CN101399799B Data relaying method for OFDM system and relaying station
10/10/2012CN101388871B Novel method and system for synchronization based on OFDM system
10/10/2012CN101350801B Method for mapping down special pilot frequency and physical resource block of long loop prefix frame structure
10/10/2012CN101345563B Multi-diversity launching and receiving equipment of mobile digital multimedia broadcasting system
10/10/2012CN101340227B Transmitting method and apparatus of downlink reference signal
10/10/2012CN101317486B Efficient cell selection
10/10/2012CN101292486B Radio transmitting apparatus, radio receiving apparatus, radio transmitting method, radio receiving method, wireless communication system and wireless communication method
10/10/2012CN101282151B Mechanism for dynamically distributing time-frequency resource using MIMO precoding code book in OFDMA system
10/10/2012CN101277291B Hybrid min-sum and LDPC decoding method for low bit resolution
10/10/2012CN101243667B Pilot and data transmission in a MIMO system applying subband multiplexing
10/10/2012CN101170355B Filter bandwidth identification method and filter based on multi-carrier base station system
10/10/2012CN101170332B Marking method and device for carrier power of multi-carrier radio communication system
10/10/2012CN101154975B Method for obtaining channel condition information in TDD system
10/10/2012CN101136881B Blind carrier frequency offset estimator based on single OFDM symbol training sequence
10/10/2012CN101102140B Distributed resource mapping method
10/10/2012CN101015158B Demodulation method and device
10/09/2012US8285896 Data conversion system
10/09/2012US8285332 Communication method, transmission apparatus and reception apparatus
10/09/2012US8285236 Method and device for processing the DC offset of a radiofrequency reception subsystem
10/09/2012US8285226 Steering diversity for an OFDM-based multi-antenna communication system
10/09/2012US8284876 Automatic gain control circuit
10/09/2012US8284875 Methods and systems for frequency domain gain control in OFDM MIMO systems
10/09/2012US8284874 Soft decision processing
10/09/2012US8284872 Burst mode receiver
10/09/2012US8284871 Synchronization determining circuit, receiver including the synchronization determining circuit, and method of the receiver
10/09/2012US8284870 Timing loop
10/09/2012US8284868 Modulating device and method, demodulating device and method
10/09/2012US8284867 Mixed mode preamble for MIMO wireless communications
10/09/2012US8284866 OFDM transmission signal generation apparatus and method, and OFDM reception data generation apparatus and method
10/09/2012US8284865 Data transmitting and receiving method using phase shift based precoding and transceiver supporting the same
10/09/2012US8284864 Signal emission by plural antennas
10/09/2012US8284863 Apparatus and method for beamforming with limited feedforward channel in multiple input multiple output wireless communication system
10/09/2012US8284862 Method for encoding data symbols with implicitly embedded pilot symbols in resource blocks for wireless networks
10/09/2012US8284859 Quantized feedback strategies and signal generation
10/09/2012US8284858 Radiofrequency transmission system
10/09/2012US8284857 Communication system, transmitter and receiver
10/09/2012US8284856 Data transmitting method and data transmitting apparatus
10/09/2012US8284852 Multi-user MIMO systems and methods
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