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)
08/2007
08/22/2007CN101023643A Adaptive pilot insertion for a MIMO-OFDM system
08/22/2007CN101023610A Method for transmitting a digital signal, method for receiving a digital signal, transmitter and receiver
08/22/2007CN101023596A A radio communication system, a radio station, and a method of transmitting data
08/22/2007CN101022643A Mobile communication system based on OFDM and channel switching distribution method
08/22/2007CN101022629A Update rank processing method and device for lasting service allocation list
08/22/2007CN101022446A Method for applying layer modulation technique in T-MMB system
08/22/2007CN101022445A Method and system for using multi-modulation system method and system in compatible DAB T-MMB system
08/22/2007CN101022444A Method and apparatus for channel state information generation in a DVD-t receiver
08/22/2007CN101022443A OFDM frequency-offset estimating method based on allocycly adjacent structure
08/22/2007CN101022442A Joint time synchronizing and frequency-offset estimating method in OFDM system
08/22/2007CN101022441A OFDM communication system carrier blind frequency-offset estimating method
08/22/2007CN101022440A Compatiable DAB ground mobile multimedia broadcast receiving and transmitting method and system
08/22/2007CN101022439A Frequency-division multiplexing transceiver apparatus and method
08/22/2007CN101022438A Compatible DAB digital broadcasting receiver carrier synchronizing method and system
08/22/2007CN101022437A Pilot frequency distributing method for quadrature frequency division multiplexing system
08/22/2007CN101022436A Compatible multistandard transmission realizing method in T-MMB system
08/22/2007CN101022435A Ground mobile multimedia broadcast receiving and transmitting method and systme based on free DAB
08/22/2007CN101022380A Method base station and radio switch-in network system configurated with E-HICH power bias value
08/22/2007CN101022329A Signal transmitting method and system used for digital multimedia broadcasting
08/22/2007CN101022304A Mobile satellite multiprotocol tag exchange network system and operating method thereof
08/22/2007CN101022298A Multi-carrier cell power overload controlling method for TD-SCDMA system
08/22/2007CN101022295A Worldwide microwave inter-operative transmitting and receiving system and method for transmitting and receiving signal thereof
08/22/2007CN101022287A Multi-path detecting method and receiver in code division multiple access communication system
08/22/2007CN101022282A Long-period spread spectrum code double-folding capture searching method
08/22/2007CN101022276A Distortion compensating apparatus and method
08/21/2007US7260768 Communication device and communication method
08/21/2007US7260373 Direct conversion receiver
08/21/2007US7260361 Locating interfering devices in wireless networks using channel adaptation metrics
08/21/2007US7260160 Method and apparatus for decoding GPS satellite data at low signal to noise levels
08/21/2007US7260159 Method and apparatus for providing higher order modulation that is backwards compatible with quaternary phase shift keying (QPSK) or offset quaternary phase shift keying (OQPSK)
08/21/2007US7260158 Digital broadcast receiver and digital broadcast receiving method
08/21/2007US7260157 Phase shifted transmitter architecture for communication systems
08/21/2007US7260156 Modulation identification device
08/21/2007US7260153 Multi input multi output wireless communication method and apparatus providing extended range and extended rate across imperfectly estimated channels
08/21/2007US7260152 Method and device for injecting a noise signal into a paired wire communication link
08/21/2007US7260142 Dynamic hybrid switching in a wireline modem
08/21/2007US7260117 Synchronizing initial handshake in ADSL annex C to TTR
08/21/2007US7260055 Method for reducing channel estimation error in an OFDM system
08/21/2007US7260054 SINR measurement method for OFDM communications systems
08/21/2007US7259901 Optical signal demodulators
08/21/2007CA2239681C In-phase and quadrature signal regeneration
08/21/2007CA2218373C Fixed compromise equalization for a dual port fm modulator
08/16/2007WO2007092945A2 Spectral shaping to reduce peak-to-average ratio in wireless communication
08/16/2007WO2007092771A1 An apparatus and method for hybrid automatic repeat request
08/16/2007WO2007092164A1 Method and apparatus for impulse noise detection and suppression
08/16/2007WO2007091858A2 Method of transmitting channel quality information in mobile communication system
08/16/2007WO2007091836A1 Method and system for scheduling users based on user-determined ranks in a mimo system
08/16/2007WO2007091833A2 Method for transmitting pilot for multiple carrier system
08/16/2007WO2007091830A1 Decoding apparatus and decoding method
08/16/2007WO2007091815A2 Method of allocating radio resources in multi-carrier system
08/16/2007WO2007091797A2 Method of matching codeword size and transmitter therefor in mobile communications system
08/16/2007WO2007091774A1 Apparatus and method for quadrature phase shift keying
08/16/2007WO2007091773A1 Apparatus and method for i/q modulation
08/16/2007WO2007091590A1 Single carrier transmission system, communication device, and single carrier transmission method used for them
08/16/2007WO2007091363A1 Adaptive digital filter and receiver
08/16/2007WO2007091362A1 Carrier reproducing device, and demodulating device
08/16/2007WO2007091134A2 Method and system for transmitter envelope delay calibration
08/16/2007WO2007090868A1 Method and device for channel response determination
08/16/2007WO2007090472A1 A method for reducing peak-to-average power ratio in an ofdm transmission system
08/16/2007WO2007053842A3 Methods and apparatus for determining timing in a wireless communication system
08/16/2007US20070192815 Method for tone hopping in a multipoint-to-point orthogonal frequency division multiplexing communication system
08/16/2007US20070190960 Direct conversion receiver
08/16/2007US20070190953 Method of generating uwb pulses
08/16/2007US20070189431 Delay alignment in a closed loop two-point modulation all digital phase locked loop
08/16/2007US20070189426 Method, medium, and system decoding and encoding a multi-channel signal
08/16/2007US20070189425 System and method for improved noise immunity in impulse and radar communications systems
08/16/2007US20070189424 Method and apparatus for reduced-state viterbi detection in a read channel of a magnetic recording system
08/16/2007US20070189423 Adaptive thresholding algorithm for the noise due to unknown symbols in correlation based channel impulse response (cir) estimate
08/16/2007US20070189422 Radio demodulation circuit
08/16/2007US20070189421 Offset correction circuit of encoder
08/16/2007US20070189420 Limiter based analog demodulator
08/16/2007US20070189419 Conversion of multiple analog signals in an analog to digital converter
08/16/2007US20070189418 Demodulator and optical disk device having the same
08/16/2007US20070189417 Precise delay alignment between amplitude and phase/frequency modulation paths in a digital polar transmitter
08/16/2007US20070189416 Apparatus and method for Orthogonal Spatial Multiplexing in a closed-loop MIMO-OFDM system
08/16/2007US20070189415 Frequency-division multiplexing transceiver apparatus and method
08/16/2007US20070189414 Frequency-division multiplexing transceiver apparatus and method
08/16/2007US20070189413 Wireless communication system using a single trace for transmitting signals
08/16/2007US20070189411 Audio encoding and transmission method
08/16/2007US20070189409 Diversity transmitter and diversity transmission method
08/16/2007US20070189401 Fec streaming with aggregation of concurrent streams for fec computation
08/16/2007US20070189360 Method and apparatus for generation of asynchronous clock for spread spectrum transmission
08/16/2007US20070189320 Adaptive scheduling of voice traffic in a multi-carrier communication environment
08/16/2007US20070189212 Adaptive modulation and coding
08/16/2007US20070189211 Adaptive modulation and coding
08/16/2007US20070189210 Adaptive modulation and coding
08/16/2007US20070189209 Adaptive modulation and coding
08/16/2007US20070189208 Adaptive modulation and coding
08/16/2007US20070189199 Base station apparatus, mobile station apparatus, and data channel scheduling method
08/16/2007US20070189195 Method and apparatus for use in carrier recovery in a communications system
08/16/2007US20070188361 Method and system for mixed analog-digital automatic gain control
08/16/2007US20070188354 Analog continuous time statistical processing
08/16/2007US20070188218 Peak power suppressor and peak power suppressing method
08/16/2007DE202007005896U1 Mehrzweckperipherieeinrichtung zum Signalempfang Multi-purpose peripheral device for signal reception
08/16/2007DE19824171B4 Verfahren und Verarbeitungssystem zum iterativen Aktualisieren der Koeffizienten eines adaptiven Filters Procedures and processing system for iteratively updating the coefficients of an adaptive filter
08/16/2007DE112005002433T5 Bestimmen der räumlichen Energiezuteilung und Bitladung für ein MIMO-OFDM-System ohne Rückführungsinformation über den Kanal Determine the spatial and energy allocation Bitladung for a MIMO-OFDM system without feedback information about the channel
08/16/2007DE102007001394A1 Gerät zum Messen des Frequenzfehlers von CDMA-Signalen An apparatus for measuring the frequency error of CDMA signals
08/16/2007DE102006005520A1 Mobile radio transmission arrangement for e.g. mobile telephone, has power amplifier reducing power input depending on power control based on reference of mobile radio standard by attenuator that is provided at input side of amplifier
08/16/2007CA2636722A1 Spectral shaping to reduce peak-to-average ratio in wireless communication
08/16/2007CA2636375A1 An apparatus and method for hybrid automatic repeat request
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