Patents
Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274)
05/2005
05/18/2005CN1617472A Adaptive incremental pulse code modulation method and device with pulse-code regulation function
05/18/2005CN1617471A Wired/wireless complex data transmission method
05/18/2005CN1202513C Audio frequency coding, decoding method and device and its use
05/12/2005US20050100102 Error-corrected wideband holographic communications apparatus and methods
05/12/2005US20050100077 Multipath-adapted holographic communications apparatus and methods
05/12/2005US20050100076 Adaptive holographic wideband communications apparatus and methods
05/11/2005EP1530336A1 Synchronization preamble structure for OFDM system
05/11/2005EP1298643B1 Frequency interpolating device and frequency interpolating method
05/11/2005EP1046164B1 Embedding supplemental data in an information signal
05/11/2005CN1615521A Method and unit for substracting quantization noise from a PCM signal
05/11/2005CN1201288C Decoding method and equipment
05/10/2005US6891482 Lossless coding method for waveform data
05/04/2005CN1200526C Apparatus and method for determining pulse position by signal of pulse modulation code
05/03/2005US6889184 Device for improving voice signal in quality
05/03/2005CA2327405C Perceptual audio coder bit allocation scheme providing improved perceptual quality consistency
04/2005
04/28/2005WO2005002065A3 Ultra-wideband communication through local power lines
04/28/2005US20050089122 Correlator and receiver including the same
04/27/2005CN1199360C Coding a data stream
04/27/2005CN1199179C Audio coding for attenuating spectral adjacent channel interference at frame boundaries
04/27/2005CN1199174C Portable information terminal and method of processing audio data
04/26/2005US6885992 Efficient PCM buffer
04/26/2005CA2298221C Encoder for multiplexing blocks error protected bits with blocks of unprotected bits
04/21/2005US20050084032 Wideband holographic communications apparatus and methods
04/20/2005EP1523816A2 Method and apparatus for forward link gain control in a power controlled repeater
04/20/2005CN1607841A A packet-to-packet coded conversion method
04/20/2005CN1607808A Apparatus and method for supporting analog fax calls in a tandem configuration
04/20/2005CN1607802A A service triggering method based on original called number information
04/19/2005US6883094 Communication device for monitoring datalink layer information and outputting data based on communication request information type
04/19/2005US6882969 Variable bit rate digital circuit multiplication equipment with tandem passthrough function
04/19/2005US6882301 Time domain radio transmission system
04/19/2005CA2399513C System and method for adjusting pcm data frames for robbed bit signaling in a telephone network
04/14/2005US20050078942 Information processing apparatus and method program, and recording medium
04/14/2005US20050078597 Methods and systems for digital data transmission
04/13/2005EP1135909B1 Systems and methods for receiving a modulated signal containing encoded and unencoded bits using multi-pass demodulation
04/13/2005EP0667063B2 Process for transmitting and/or storing digital signals from several channels
04/13/2005CN1606857A Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
04/13/2005CN1197343C Device and method for supporting analogue facsimile call in exchanging structure
04/13/2005CN1197267C Demultiplexer for channel interleaving
04/13/2005CN1197249C Sigma Delta modulator-controlled phase-locked-loop circuit and associated method
04/12/2005US6879273 Oversampling in analog/digital and digital/analog converters
04/07/2005WO2005031705A1 Sampling rate converting apparatus, encoding apparatus, decoding apparatus, and methods thereof
04/06/2005CN1605203A Interactive protocol for remote management of access control to scrambled data
04/06/2005CN1604483A Decoding method and equipment
04/05/2005US6876869 Coding assisting equipment, decoding assisting equipment, radio transmitter, and radio receiver
04/05/2005US6876698 Tunable narrow-band filter including sigma-delta modulator
04/05/2005CA2262511C Arrangements and methods for generating a radio frequency signal
03/2005
03/31/2005WO2005029853A1 Data conversion system
03/30/2005CN1602076A Converter and method with hybrid RGB chart and YUV video signal
03/24/2005WO2004002001A8 Ultra-wideband communication through a wire medium
03/24/2005US20050066101 Method and device for connecting sensors or actuators to a bus system
03/24/2005US20050063708 System and method of using variable pulses for symbology
03/24/2005DE10340165A1 Sensor connection procedure for vehicle TTCAN networks synchronizes sensor or actuator to bus system clock during fast clock first phase
03/23/2005EP1516436A2 Ultra-wideband communication through a wire medium
03/23/2005CN1194488C Full duplex radio communication emitting and receiving circuit and method
03/22/2005US6870876 Method for sending information in a telecommunication system
03/17/2005WO2005025099A1 Method and apparatus of speech coding and channel coding to improve voice quality and range in two-way radios
03/17/2005US20050058208 Apparatus and method for coding excitation signal
03/16/2005CN1596543A Information processing apparatus and method, program, and recording medium
03/16/2005CN1596521A Information content distribution based on privacy and/or personal information
03/15/2005US6868161 Transmitting/receiving device and transmitting/receiving method
03/10/2005US20050055551 Interactive protocol for remote management of access control to scrambled data
03/10/2005US20050053208 Process, arrangement, devices for seizure of a shared telephone line
03/10/2005US20050053178 Method and apparatus of speech coding and channel coding to improve voice quality and range in two-way radios
03/09/2005EP0756788B1 Parameter sampling apparatus
03/09/2005CN1592303A Methods and systems for application instance level workload distribution affinities
03/09/2005CN1592290A Communication method, apparatus and system
03/09/2005CN1592175A Method for producing long code mask for cluster service
03/09/2005CN1592106A Adapting device capable of converting picture element clock pulse into character clock pulse
03/09/2005CN1591513A Method and device for connecting sensors or actuators to a bus system
03/09/2005CN1192584C Communication device and method of operation
03/08/2005US6865709 Method and device for channel encoding in an information transfer system
03/08/2005US6865391 Method and system for vocoder bypass using electronic serial numbers
03/08/2005US6865230 Filter system with reduced switch thermal noise and a ΣΔ modulator using such a filter
03/03/2005WO2005020616A1 Method for selection of an available transmission channel by sending a negative decision value and an additional positive decision value and corresponding base station mobile terminal and mobile radio network
03/03/2005US20050050202 Methods, systems and computer program products for application instance level workload distribution affinities
03/03/2005US20050046600 Robust system for transmitting and receiving map data
03/02/2005CN1589556A Digital implementation of multi-channel demodulators
03/02/2005CN1588851A Biological identifying device and method for proofing replay attach
03/02/2005CN1588711A Tunable single longitudinal mode optical-fiber laser for clearing beat frequency noise
03/01/2005US6862317 Modulation technique providing high data rate through band limited channels
03/01/2005US6861964 Robust system for transmitting and receiving map data
02/2005
02/24/2005US20050041805 Miniaturized holographic communications apparatus and methods
02/24/2005US20050041758 Holographic ranging apparatus and methods
02/24/2005US20050041757 Frequency-hopped holographic communications apparatus and methods
02/24/2005US20050041756 Real domain holographic communications apparatus and methods
02/24/2005US20050041752 Pulse-shaped holographic communications apparatus and methods
02/24/2005US20050041746 Software-defined wideband holographic communications apparatus and methods
02/24/2005DE10335082A1 Data transmission system for electrical, optical, or magnetic energy sources, has impedance adjustment unit for adjusting an input impedance of energy receiver according to value of first data signal
02/23/2005CN1586041A Signal processing device, signal processing method, delta-sigma modulation type fractional division PLL frequency synthesizer, radio communication device, delta-sigma modulation type D/A converter
02/23/2005CN1190916C Bit error resisting coding and decoding method based on IP apllication
02/17/2005WO2005015865A1 Multi-carrier communication apparatus with adaptive transmission according to transmission path fluctuations
02/17/2005WO2005015756A1 Transmitter apparatus
02/17/2005WO2005015746A2 Variable coder apparatus for resonant power conversion and method
02/17/2005US20050037736 System and method for controlling a mobile terminal using a digital signature
02/17/2005US20050037722 Communication apparatus
02/16/2005EP1507425A1 System and method for controlling a mobile terminal using a digital signature
02/16/2005CN1581914A Method for realizing official telephone of SDH device using IP telephone
02/16/2005CN1581867A Method and system for realizing tracked interface message
02/16/2005CN1581772A System and method for controlling a mobile terminal using a digital signature
02/15/2005US6856955 Voice encoding/decoding device
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