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)
01/2001
01/09/2001US6173015 Device and method for precoding data signals for PCM transmission
01/09/2001CA2018031C Method and apparatus for digitally processing a high definition television augmentation signal
01/04/2001WO2001001614A1 Method and system for adaptive voice buffering
12/2000
12/28/2000WO2000079763A1 Robust header compression in packet communications
12/28/2000WO2000079706A1 Direct conversion delta-sigma receiver
12/28/2000WO2000079520A1 Improving sound quality of established low bit-rate audio coding systems without loss of decoder compatibility
12/26/2000US6167371 Speech filter for digital electronic communications
12/26/2000US6166873 Audio signal transmitting apparatus and the method thereof
12/26/2000US6166779 Method for analog decimation of image signals
12/26/2000US6166667 Selection of turbo or non-turbo error correction codes based on data type or length
12/26/2000CA2021618C Method for protecting multi-pulse coders from fading and random pattern bit errors
12/21/2000WO2000077971A1 Automatic gain control for improved decoding of multi-carrier signal
12/20/2000EP1061503A2 Error detection and error concealment for encoded speech data
12/13/2000EP1059742A1 Method for the wireless and remote transmission and reception of coded information, variants and portable device for realising this method
12/13/2000CN1276936A Post-compression hidden data transport for video
12/13/2000CN1059537C Digital bit oriented switch and general digital switch
12/07/2000WO2000074036A1 Device for encoding/decoding voice and for voiceless encoding, decoding method, and recorded medium on which program is recorded
12/05/2000US6157907 Interpolation in a speech decoder of a transmission system on the basis of transformed received prediction parameters
12/05/2000US6157678 Probabilistic trellis/coded modulation with PCM-derived constellations
12/05/2000US6157324 Analog to digital voice transmitter
11/2000
11/29/2000CN1275234A Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries
11/21/2000US6151364 Codec supporting PCM modem communications over a universal digital loop carrier
11/20/2000CA2308825A1 Translation table and constellation design for a pcm modem subjected to alternating robbed bit signaling
11/16/2000WO2000069192A1 Method of profiling disparate communications and signal processing standards and services
11/16/2000CA2371140A1 Method of profiling disparate communications and signal processing standards and services
11/15/2000EP1052799A2 Flexible channeliser
11/15/2000EP1052779A1 Processor having adaptable operating frequency
11/15/2000EP1052620A1 Sound encoding method and sound decoding method, and sound encoding device and sound decoding device
11/15/2000EP0979506A4 Apparatus and method for rate determination in a communication system
11/14/2000US6148281 Detecting and replacing bad speech subframes wherein the output level of the replaced subframe is reduced to a predetermined non-zero level
11/10/2000CA2307907A1 Implementation of orthogonal narrowband channels in a digital demodulator
11/08/2000EP1050169A1 Extraction of foreground information for stereoscopic video coding
11/08/2000EP1050045A1 Embedding and extracting supplemental data in an information signal
11/07/2000US6144703 Circuit for synthesizing multiple pulse code modulation data
11/07/2000CA2121195C Digital signal transmission device for improvement of anti-multipath feature, a method of the same and digital signal transmission waveform
11/02/2000WO2000065790A1 Nyquist filter and method
11/02/2000WO2000065720A1 Method for analog decimation of image signals
11/02/2000WO2000065713A2 Sample rate converter
11/02/2000EP1049304A1 Channel check test system
11/02/2000EP1049284A2 Multiresolution transmission with multicarrier signals
11/02/2000EP1049283A2 Multiresolution transmission with multicarrier signals
11/02/2000EP1049282A2 Multiresolution modulation with multicarrier signals
11/02/2000EP1049073A2 Fixed codebook search for celp speech coding
11/01/2000CN1272199A Sound deorder and sound decording method
11/01/2000CN1271936A Transmission equipment and method of audio data/audio related information
11/01/2000CN1271925A Shaped fixed code book searching used for code exciting linear predicting speech encode
10/2000
10/28/2000CA2305972A1 Shaped fixed codebook search for celp speech coding
10/26/2000WO2000064073A1 Interleaver and deinterleaver for use in a diversity transmission communication system
10/26/2000WO2000063886A1 Using gain-adaptive quantization and non-uniform symbol lengths for audio coding
10/25/2000EP1047212A2 Apparatus and method for audio data/audio-related information transfer
10/25/2000EP1046233A1 Radio receiver
10/25/2000EP1046164A1 Embedding supplemental data in an information signal
10/25/2000CN1271483A Method and apparatus for performance improvement by qualifying pulses in an oversampled, noise-shaping signal processor
10/24/2000US6138164 System for minimizing screen refresh time using selectable compression speeds
10/24/2000US6138093 High resolution post processing method for a speech decoder
10/24/2000US6138090 Encoded-sound-code decoding methods and sound-data coding/decoding systems
10/18/2000EP1045541A2 Multiresolution transmission and error correction coding with multicarrier signals
10/18/2000EP1045524A1 Low power radio receiver
10/17/2000US6134523 Coding bit rate converting method and apparatus for coded audio data
10/17/2000US6134522 Signal processing method and arrangement for substitution or erroneous signals in a block-coded audio signals of an audio communication system
10/17/2000US6134519 Voice encoder for generating natural background noise
10/17/2000US6134268 Apparatus for performing a non-integer sampling rate change in a multichannel polyphase filter
10/17/2000CA2260222C Coding and decoding of audio signals by using intensity stereo and prediction
10/17/2000CA2015414C Method of and system for power line carrier communications
10/11/2000EP1043858A1 Transmitting/receiving device and transmitting/receiving method
10/11/2000EP1042861A1 Device and method for detecting pcm upstream digital impairments in a communication network
10/11/2000CN1269923A Information coding method and device using error correction and error detection
10/10/2000US6131084 Dual subframe quantization of spectral magnitudes
10/10/2000US6131083 Method of encoding and decoding speech using modified logarithmic transformation with offset of line spectral frequency
10/10/2000CA2164027C Digital radio receiver
10/04/2000EP1041781A1 Soft output metrics generation for symbol detectors
10/04/2000EP1041541A1 Celp voice encoder
10/04/2000EP0963633A4 Sample rate converter
10/04/2000EP0852375B1 Speech coder methods and systems
10/04/2000CN1269070A Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form
10/04/2000CN1268829A Soft output prodn. used for code element detector
10/03/2000US6128592 Signal processing apparatus and method, and transmission medium and recording medium therefor
09/2000
09/27/2000EP1039682A2 Multiresolution transmission, in particular with multicarrier singals
09/27/2000EP1039681A2 Mutliresolution transmition and error correction coding, with multicarrier signals
09/27/2000EP1039680A2 Multiresolution transmission and error correction coding with multicarrier modulation
09/27/2000EP1039679A2 Multiresolution transmission with multicarrier signals
09/27/2000EP1039678A2 Multiresolution transmission, particularly with multicarrier signals
09/27/2000EP1039677A2 Multiresolution transmission and error correction coding, with multicarrier modulation
09/27/2000EP1039676A2 Multiresolution transmission, in particular with multicarrier signals
09/27/2000EP1039675A2 Multiresolution transmission with multicarrier signals
09/27/2000EP1039674A2 Multiresoltion transmission and error correction coding with multicarrier signals
09/27/2000EP1039673A2 Multiresolution transmission and error correction coding with multicarrier signals
09/27/2000EP1039672A2 Multiresolution transmission, particularly for multicarrier systems
09/27/2000EP1039636A2 Multi-rate digital filter for audio sample-rate conversion
09/27/2000EP1038379A1 System, device and method for pcm upstream transmission utilizing an optimized transmit constellation
09/27/2000EP1038378A1 Device and method for precoding data signals for pcm transmission
09/27/2000EP1038356A1 Sigma-delta modulator-controlled phase-locked-loop circuit and associated method
09/26/2000US6125265 Portable telephone device
09/26/2000US6124895 Frame-based audio coding with video/audio data synchronization by dynamic audio frame alignment
09/24/2000CA2299903A1 Soft output metrics generation for symbol detectors
09/19/2000US6122765 Receiving apparatus, receiving method, transmission system and transmission method
09/19/2000US6122607 Method and arrangement for reconstruction of a received speech signal
09/13/2000EP1035698A2 Mutliresolution transmission system
09/13/2000EP1035697A2 Multiresolution transmission, in particular for multicarrier systems
09/13/2000EP1035696A2 Mutliresolution transmission system
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