Patents
Sitemap › H04 - Electric communication technique › H04B - Transmission › H04B 14 - Transmission systems not characterised by the medium used for transmission
Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274)
10/2003
10/01/2003CN1445941A Method for recovering lost packets transferred IP voice packets in network
10/01/2003CN1123179C Method and apparatus for transmission of variable rate digital data
10/01/2003CN1123126C Information coding method and device using error correction and error detection
10/01/2003CN1122969C Method and device for reducing background noise contrast in switching of change of speech code decode apparatus
09/2003
09/30/2003US6628728 Nyquist filter and method
09/25/2003WO2003079625A1 Methods and systems for digital data transmission
09/25/2003WO2003036886A3 Method and system for transferring ip packets by aggregating multiple wireless communication channels for high data rate transfers
09/25/2003CA2478339A1 System for improving performance of compression and decompression algorithms in a telecommunication system
09/24/2003CN1122367C Re-sampling circuit and modulator using the same and method for controlling said circuit
09/24/2003CN1122256C Method and device for predicting and analysising coding audio signal by forward and backward linearity
09/23/2003US6624765 Apparatus and method for sampling rate conversion
09/18/2003WO2003077423A2 High speed analog-to-digital converter using a unique gray code having minimal bit transitions
09/17/2003CN1121682C Very low bit rate voice messaging system using asymmetric voice compression processing
09/17/2003CN1121609C Method and arrangement for reconstruction of received speech signal
09/11/2003US20030172098 Multi-rate digital filter for audio sample-rate conversion
09/11/2003US20030171935 Apparatus and Method for Audio Data/Audio-Related Information Transfer
09/11/2003US20030169195 High-speed analog-to-digital converter using a unique gray code
09/11/2003US20030169189 Robust system for transmitting and receiving map data
09/10/2003EP0579813B1 Bit oriented digital switch and general digital switch for pcm transmission systems
09/10/2003CN1441950A Speech communication system and method for handling lost frames
09/10/2003CN1441558A Full duplex radio communication emitting and receiving circuit and method
09/04/2003US20030167164 Frequency thinning device and method for compressing information by thinning out frequency components of signal
09/03/2003EP1341126A2 Image compression using a shared codebook
09/03/2003CN1440169A Position code communication method and device
09/03/2003CN1440144A Digital signal coder, decoder and coding method decoding method
09/03/2003CN1120589C Circuit for synthesizing multiple pulse coding modulation data
09/02/2003US6615382 Method for controlling errors in link layer in wideband wireless communication and computer readable media therefor
08/2003
08/26/2003US6611563 Systems, methods and computer program products for data mode refinement of modem constellation points
08/21/2003WO2003069783A1 Receiving apparatus, communication system using the same, and sampling rate converting means
08/21/2003US20030156546 Method of decoding uplink status flags for RT-EGPRS users
08/20/2003EP1336310A2 Methods and apparatus for identifying asset location in mobile communication networks
08/20/2003EP1336277A2 Methods and apparatus for identifying asset location in mobile communication networks
08/19/2003US6608863 Coherent detection system for multicarrier modulation
08/14/2003WO2003067840A1 Radio information communication apparatus and method
08/14/2003WO2003067792A1 Digital circuit transmission device
08/13/2003EP1335496A1 Encoder and decoder
08/13/2003EP1334578A2 Wireless clock synchronization
08/12/2003US6606356 Asynchronous digital system, asynchronous data path circuit, asynchronous digital signal processing circuit and asynchronous digital signal processing method
08/12/2003US6606355 Channel coding in the presence of bit robbing
08/12/2003US6606051 Pulse-responsive dipole antenna
08/06/2003EP1125284B1 High frequency content recovering method and device for over-sampled synthesized wideband signal
08/06/2003EP1125276B1 A method and device for adaptive bandwidth pitch search in coding wideband signals
08/06/2003EP0826274B1 Lossless coding method for waveform data
08/06/2003CN1117363C Disc recording method, disc reproducing apparatus, and disc-shaped recording medium
08/06/2003CN1117351C Data detection device using sample interpolation and its method
08/06/2003CN1117346C Method and device for coding discrete signals or for decoding coded discrete signals
08/05/2003US6604069 Signals having quantized values and variable length codes
08/05/2003US6603409 Decoding apparatus and decoding method of repeated data for rate matching
08/05/2003CA2317554C Device and method for detecting pcm upstream digital impairments in a communication network
08/05/2003CA2058775C Transmission and decoding of tree-encoder parameters of analogue signals
07/2003
07/31/2003WO2003063160A1 Method and unit for substracting quantization noise from a pcm signal
07/30/2003EP1125285B1 Periodicity enhancement in decoding wideband signals
07/30/2003CN1433616A Method and apparatus for implementing leaf node proxy in network
07/29/2003US6600788 Narrow-band filter including sigma-delta modulator implemented in a programmable logic device
07/24/2003WO2003061134A1 Method and apparatus for optimizing dynamic range of a wideband analog-to-digital converter
07/24/2003US20030138057 Encoder and decoder
07/23/2003EP1330093A2 Multiresolution transmission
07/23/2003EP1330092A2 Multiresolution transmission
07/23/2003EP1330090A2 Multiresolution transmission with multicarrier modulation
07/23/2003EP1330089A2 Multiresoltion transmission and error correction coding with multicarrier signals
07/23/2003EP1330088A2 Multiresolution transmission
07/23/2003EP1328938A1 Audio signal compression
07/23/2003CN1432215A Multiplexing-interleaving and demultiplexing-deinterleaving
07/23/2003CN1115781C Coding appts.
07/22/2003US6597301 Apparatus and method for level-dependent companding for wireless audio noise reduction
07/17/2003WO2003058852A1 System and method for avoiding stall using timer for high-speed downlink packet access system
07/16/2003CN1114997C Raidio receiver
07/15/2003US6594317 Simple encoding/decoding technique for code position modulation
07/10/2003US20030128783 Precision timing generator apparatus and associated methods
07/10/2003US20030128722 Multplexing-interleaving and demultipexing-deinterleaving
07/10/2003US20030128705 System and method for avoiding stall using timer for high-speed downlink packet access system
07/09/2003EP1326444A1 Signal transmitter and signal receiver
07/09/2003EP1326388A2 System and method for avoiding stall using timer for high-speed downlink packet access system
07/08/2003US6590943 Radio receiver
07/08/2003CA2176401C A high-data-rate wireless local-area network
07/03/2003US20030125889 Frequency interpolating device and frequency interpolating method
07/02/2003CN1113458C Control of variable gain amplifier with delta-sigma modulator D/A converter
07/02/2003CN1113332C Transmission system comprising at least a coder
07/01/2003US6587478 Cell interleaving method in ATM switching system
06/2003
06/26/2003US20030118118 High speed leading or trailing bit value detection
06/25/2003CN1112777C Signal processing method and device
06/24/2003US6584443 Apparatus and method for audio data/audio-related information transfer
06/19/2003US20030112908 Multi-interpolated data recovery with a relative low sampling rate
06/19/2003US20030112828 Signal transmitter and signal receiver
06/18/2003CN1111959C Quantization apparatus, quantization method, high efficiency encoder, high efficiency encoding method, decoder, high efficiency decoder
06/17/2003US6581031 Speech encoding method and speech encoding system
06/17/2003US6580758 Method of coding images at very low data rate and coding/decoding device implementing this method
06/17/2003CA2267219C Differential coding for scalable audio coders
06/12/2003WO2003049359A1 Information content distribution based on privacy and/or personal information
06/12/2003US20030107505 Analog isolation system with digital communication across a capacitive barrier
06/12/2003CA2465553A1 Information content distribution based on privacy and/or personal information
06/11/2003EP1317754A1 Audio signal processing with adaptive noise-shaping modulation
06/11/2003CN2555590Y Digital pulse intervally modulated power line carrier communication transmitting/receiving appts.
06/10/2003US6577691 Precision timing generator apparatus and associated methods
06/10/2003US6577683 Method and device for generating signal constellations in PCM space for high speed data communication
06/05/2003WO2003046888A1 Decoding method for a delta modulated signal
06/05/2003US20030105719 Information content distribution based on privacy and/or personal information
06/04/2003EP0920750A4 Cooperative feedback system and method for a compensation system associated with a transmitter or codec
06/04/2003CN1422032A Mixed automatic retransmitting method
06/04/2003CN1421857A Digital sound signal processing apparatus and method
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