| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 09/24/1997 | CN1035974C Method for repeaters to adaptively digitally code received analog information |
| 09/18/1997 | WO1997034404A1 Infrared communications system and method |
| 09/16/1997 | CA2081441C Method and apparatus for the transmission of speech signals |
| 09/09/1997 | US5666379 Best-of-M pulse position modulation detector |
| 09/03/1997 | EP0792502A1 Very low bit rate voice messaging system using asymmetric voice compression processing |
| 08/28/1997 | WO1997031367A1 Multi-stage speech coder with transform coding of prediction residual signals with quantization by auditory models |
| 08/28/1997 | WO1997025794A3 Transmitter for and method of transmitting a wideband digital information signal, and receiver |
| 08/28/1997 | CA2219358A1 Speech signal quantization using human auditory models in predictive coding systems |
| 08/26/1997 | US5661755 Encoding and decoding of a wideband digital information signal |
| 08/20/1997 | EP0669026A4 Method and apparatus for detecting bad frames of information in a communication system. |
| 08/20/1997 | CN1157665A Signal-processing method and device for block-coded audio signals of audio communication system |
| 08/12/1997 | US5657421 Speech signal transmitter wherein coding is maintained during speech pauses despite substantial shut down of the transmitter |
| 08/12/1997 | US5657351 Method and apparatus for external intermediate data processing |
| 08/12/1997 | US5657350 Audio coder/decoder with recursive determination of prediction coefficients based on reflection coefficients derived from correlation coefficients |
| 08/05/1997 | US5654990 Real-time digital audio compression/decompression system |
| 08/05/1997 | US5654984 Signal modulation across capacitors |
| 08/05/1997 | US5654978 Pulse position modulation with spread spectrum |
| 07/31/1997 | WO1997027681A1 A self-initialized coder and method thereof |
| 07/30/1997 | EP0786908A2 MPEG data stream decoder |
| 07/30/1997 | EP0786760A2 Speech coding |
| 07/30/1997 | EP0786172A1 Digital transmission system, transmitter, receiver, equivalent analog signal, and transmission method |
| 07/30/1997 | CN1155788A Method and device for compressing digital data |
| 07/22/1997 | US5651090 Coding method and coder for coding input signals of plural channels using vector quantization, and decoding method and decoder therefor |
| 07/17/1997 | WO1997025794A2 Transmitter for and method of transmitting a wideband digital information signal, and receiver |
| 07/16/1997 | CN1154755A Recording medium, data transmission method and apparatus, and data reproduction method and apparatus |
| 07/16/1997 | CN1154608A Digital audio signal processing apparatus and method |
| 07/15/1997 | US5649030 Automatic method in an encoding device |
| 07/15/1997 | US5648777 Data converter with FIFO |
| 07/15/1997 | US5648773 Data compression transmission system |
| 07/09/1997 | EP0782791A1 An ultrawide-band communications system and method |
| 07/08/1997 | US5646960 Inverse modified discrete cosine transform signal transforming system |
| 07/03/1997 | WO1997023971A1 Transmission system having receiver for recovering words from sequence of symbols |
| 07/02/1997 | EP0782364A2 Method and apparatus for the dynamic allocation of signal bandwidth between audio, video and data signals |
| 07/02/1997 | EP0782339A1 Method and apparatus for compressing digital data |
| 07/02/1997 | EP0782277A2 Speech frame disabling circuitry for protection against burst errors of interleaved TDMA frames |
| 06/24/1997 | US5642383 Audio data coding method and audio data coding apparatus |
| 06/18/1997 | EP0611516B1 Process for reducing data in the transmission and/or storage of digital signals from several dependent channels |
| 06/17/1997 | US5640421 Modified discrete cosine transform signal transforming system |
| 06/17/1997 | US5640419 Covert communication system |
| 06/17/1997 | US5640161 Silent data conversion system with sampling during electrical silence |
| 06/17/1997 | CA2061366C Compression of signals for perceptual quality |
| 06/12/1997 | WO1997021211A1 Multi-channel predictive subband coder using psychoacoustic adaptive bit allocation |
| 06/10/1997 | US5638074 Method and apparatus for slew limiting |
| 06/03/1997 | US5636324 Apparatus and method for stereo audio encoding of digital audio signal data |
| 06/03/1997 | US5635938 Quantizing and dequantizing circuit with reduced size |
| 05/28/1997 | EP0776008A2 Recording method, reproducing apparatus, and a disc-shaped recording medium |
| 05/28/1997 | EP0775360A1 Signal-processing method and device for substituting non-correctable blocks in a receiver for block-coded audio signals |
| 05/27/1997 | US5633981 Method and apparatus for adjusting dynamic range and gain in an encoder/decoder for multidimensional sound fields |
| 05/27/1997 | US5633880 Receiver providing masking of an error in a digital signal, and a transmission system including such a receiver |
| 05/27/1997 | US5633862 DTMF signal transmission method in single frequency simultaneous transmitting and receiving system and single frequency simultaneous transmitting and receiving system transceiver capable of transmitting DTMF signal |
| 05/21/1997 | CN1150357A Noise suppression apparatus and method |
| 05/20/1997 | US5632003 Computationally efficient adaptive bit allocation for coding method and apparatus |
| 05/20/1997 | US5632001 Mobile communication apparatus having recording/reproducing function |
| 05/20/1997 | US5631930 Radio transmission output control circuit for TDMA communication |
| 05/14/1997 | EP0772925A1 Non-linearly quantizing an information signal |
| 05/07/1997 | CN1149365A Complexity determining apparatus |
| 05/07/1997 | CN1149364A Parameter sampling apparatus |
| 05/06/1997 | US5627937 Apparatus for adaptively encoding input digital audio signals from a plurality of channels |
| 05/02/1997 | EP0569432B1 Method and apparatus for decoding video signals |
| 05/01/1997 | WO1997016009A1 Digital-to-analog communication device and method |
| 05/01/1997 | WO1997016008A1 Digital-to-analog communication device and method |
| 05/01/1997 | WO1997015984A1 Repeated decoding and encoding in subband encoder/decoders |
| 05/01/1997 | WO1997015983A1 Method of and apparatus for coding, manipulating and decoding audio signals |
| 04/29/1997 | US5625645 Differential pulse encoding and decoding for binary data transmissions |
| 04/29/1997 | US5625318 Differential amplifier having a double differential amplifier pair with interconnected control electrodes |
| 04/23/1997 | EP0769875A2 Video modulator arrangements |
| 04/23/1997 | EP0769225A1 Signal processing circuit |
| 04/22/1997 | US5623577 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
| 04/22/1997 | US5623513 Mitigating clipping and quantization effects in digital transmission systems |
| 04/22/1997 | US5623511 Spread spectrum code pulse position modulated receiver having delay spread compensation |
| 04/22/1997 | CA2072816C Circuit for digitally adding loss to a signal |
| 04/22/1997 | CA2005115C Low-delay code-excited linear predictive coder for speech or audio |
| 04/17/1997 | WO1997014139A1 Signal prediction method and device for a speech coder |
| 04/16/1997 | EP0768631A1 A remote control system |
| 04/15/1997 | US5621855 Subband coding of a digital signal in a stereo intensity mode |
| 04/15/1997 | US5621851 For correcting errors relating to expansion of compressed data |
| 04/15/1997 | US5621760 Speech coding transmission system and coder and decoder therefor |
| 04/09/1997 | EP0441980B1 Time-division multiplex data relay exchange system |
| 04/09/1997 | CN1147320A Bad frame detection |
| 04/08/1997 | US5619536 Digital superheterodyne receiver and baseband filter method used therein |
| 04/08/1997 | US5619197 Signal encoding and decoding system allowing adding of signals in a form of frequency sample sequence upon decoding |
| 04/02/1997 | EP0766247A2 Signal restoration using left-sided and right-sided autoregressive parameters |
| 04/02/1997 | EP0624291B1 Error protection in a subband coder |
| 04/01/1997 | US5617506 Method for communicating a value over a transmission medium and for decoding same |
| 04/01/1997 | US5617145 Adaptive bit allocation for video and audio coding |
| 03/27/1997 | WO1997011535A1 Cellular communication system with multiple code rates |
| 03/20/1997 | WO1997010584A1 Very low bit rate voice messaging system using asymmetric voice compression processing |
| 03/19/1997 | EP0763239A1 Recording medium, data transmission method and apparatus, and data reproduction method and apparatus |
| 03/19/1997 | CN1145707A Method and appts. for reducing quantization noise |
| 03/18/1997 | US5613035 Apparatus for adaptively encoding input digital audio signals from a plurality of channels |
| 03/12/1997 | EP0762666A2 Code division multiple access mobile communication system |
| 03/11/1997 | US5611002 Method and apparatus for manipulating an input signal to form an output signal having a different length |
| 03/11/1997 | US5610988 Hearing aid set |
| 03/11/1997 | US5610985 Digital 3-channel transmission of left and right stereo signals and a center signal |
| 03/11/1997 | US5610907 Ultrafast time hopping CDMA-RF communications: code-as-carrier, multichannel operation, high data rate operation and data rate on demand |
| 03/05/1997 | EP0709006B1 Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
| 03/04/1997 | US5608805 Dynamic loader |
| 03/04/1997 | US5608758 Radio control device having crystal high frequency module and high frequency phase lockloop for selective use, modules detachably mounted |
| 03/04/1997 | CA2084338C Method for speech coding and voice-coder |
| 02/25/1997 | US5606618 Subband coded digital transmission system using some composite signals |