| Patents for H04B 14 - Transmission systems not characterised by the medium used for transmission (7,274) |
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| 12/16/1999 | WO1999065172A1 A method and apparatus for digital channelisation and de-channelisation |
| 12/15/1999 | EP0963633A1 Sample rate converter |
| 12/15/1999 | CN1238603A Subset averaged mean predictor for differential pulse code modulation |
| 12/15/1999 | CN1238514A Phase quantization method and apparatus |
| 12/14/1999 | US6002999 Interface apparatus and method between a selector and a plurality of vocoders in a mobile communication system |
| 12/14/1999 | CA2134696C Method of and system for enhancing distorted graphical information |
| 12/09/1999 | WO1999063661A1 Control of a variable gain amplifier with a delta sigma modulator d/a converter |
| 12/09/1999 | WO1999063501A1 A system and method for communicating and/or geolocating plural remote transmitters using a time invariant matched filter |
| 12/09/1999 | WO1999063500A1 A system and method for communicating with plural remote transmitters |
| 12/09/1999 | CA2332578A1 A system and method for communicating and/or geolocating plural remote transmitters using a time invariant matched filter |
| 12/09/1999 | CA2332572A1 A system and method for communicating with plural remote transmitters |
| 12/08/1999 | EP0962015A1 Method and devices for coding discrete signals or for decoding coded discrete signals |
| 12/08/1999 | CN1237842A Frame erasure for digital data transmission systems |
| 12/07/1999 | US5999569 Communication system |
| 12/07/1999 | US5999347 Method and apparatus for higher resolution audio signal transmitting |
| 12/07/1999 | CA2140483C Method for communicating block coded digital data with associated synchronization/control data |
| 12/07/1999 | CA2056353C Radio communication apparatus |
| 12/07/1999 | CA2045970C Method for transmitting a signal |
| 12/02/1999 | WO1999062253A2 Scalable audio coder and decoder |
| 12/02/1999 | WO1999062189A2 System and method for masking quantization noise of audio signals |
| 12/02/1999 | WO1999062055A1 Sound decoder and sound decoding method |
| 12/02/1999 | WO1999062052A2 System and method for entropy encoding quantized transform coefficients of a signal |
| 12/01/1999 | EP0961499A1 Predictive coding method and decoding method for dynamic image |
| 12/01/1999 | EP0961436A2 Method of identifying a frame for erasure in a digital data transmission system |
| 12/01/1999 | CN1237045A Iterative decoding on demand |
| 11/30/1999 | US5995534 Ultrawide-band communication system and method |
| 11/30/1999 | US5994954 Method and apparatus for processing an analogue signal |
| 11/24/1999 | EP0958658A2 An information coding method and devices utilizing error correction and error detection |
| 11/24/1999 | CN1236245A Digital modulation system using modified orthogonal codes to reduce autocorrelation |
| 11/24/1999 | CN1236222A Method and apparatus for sampling-rate conversion of audio signals |
| 11/23/1999 | US5991857 Interleaving and de-interleaving of data in telecommunications |
| 11/23/1999 | US5991784 Signal processing circuit |
| 11/23/1999 | US5991715 Perceptual audio signal subband coding using value classes for successive scale factor differences |
| 11/18/1999 | WO1999048214A3 Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form |
| 11/17/1999 | EP0957579A1 Method and apparatus for sampling-rate conversion of audio signals |
| 11/16/1999 | US5986596 Concise storage and expansion of signal constellations in PCM space for high speed data communication |
| 11/16/1999 | US5986512 Σ-Δ modulator-controlled phase-locked-loop circuit |
| 11/16/1999 | CA2051738C Method for reducing the risk of poor reception in a mobile telephony system |
| 11/10/1999 | EP0954851A1 Multi-stage speech coder with transform coding of prediction residual signals with quantization by auditory models |
| 11/10/1999 | EP0954849A2 A method and apparatus for audio representation of speech that has been encoded according to the lpc principle, through adding noise to constituent signals therein |
| 11/10/1999 | CN1234897A Method and device for coding discrete signals or for decoding coded discrete signals |
| 11/10/1999 | CN1046366C Discriminating between stationary and non-stationary signals |
| 11/09/1999 | US5983173 Envelope-invariant speech coding based on sinusoidal analysis of LPC residuals and with pitch conversion of voiced speech |
| 11/09/1999 | US5982817 Transmission system utilizing different coding principles |
| 11/09/1999 | US5982446 Video modulator arrangement |
| 11/03/1999 | EP0954158A2 Data optimized codec |
| 11/03/1999 | EP0954129A1 Method and device for adaptive differential pulse code modulation. |
| 11/03/1999 | EP0953966A2 Modem voice/data mode switching arrangement. |
| 11/03/1999 | EP0653091B1 Discriminating between stationary and non-stationary signals |
| 11/02/1999 | US5978762 Digitally encoded machine readable storage media using adaptive bit allocation in frequency, time and over multiple channels |
| 11/02/1999 | US5978760 Method and system for improved discontinuous speech transmission |
| 10/29/1999 | CA2233777A1 Method and device for adaptive differential pulse code modulation |
| 10/28/1999 | WO1999055011A1 Channel encoding device and method for communication system |
| 10/28/1999 | WO1999054997A1 Method for converting the scanning rate |
| 10/27/1999 | CN1233338A System and methods for communicating desired audio information over a communications medium |
| 10/26/1999 | US5974380 Multi-channel audio decoder |
| 10/26/1999 | US5974379 Methods and apparatus for gain controlling waveform elements ahead of an attack portion and waveform elements of a release portion |
| 10/26/1999 | US5974089 Method and apparatus for performance improvement by qualifying pulses in an oversampled noise-shaping signal processor |
| 10/22/1999 | CA2261826A1 Digital modulation system using modified orthogonal codes to reduce autocorrelation |
| 10/21/1999 | WO1999046914A3 Communication device and method of operation |
| 10/19/1999 | US5970443 Audio encoding and decoding system realizing vector quantization using code book in communication system |
| 10/19/1999 | US5970392 Information signal processing apparatus and method |
| 10/19/1999 | US5968201 Method and apparatus for error correction |
| 10/14/1999 | WO1999052216A2 Channel encoding/decoding device and method |
| 10/13/1999 | EP0949763A2 Digital transmission system for transmitting scale factors |
| 10/13/1999 | CN1045704C Method for processing digital auxiliary signal |
| 10/12/1999 | CA2167327C Voice signal transmission system using spectral parameter and voice parameter encoding apparatus and decoding apparatus used for the voice signal transmission system |
| 10/06/1999 | EP0948206A2 Characterising compressed bitstreams |
| 10/05/1999 | US5963581 Impulse radio receiver |
| 09/30/1999 | DE19813368A1 Message transmission method enables even long lines forming part of the transmitted message to be displayed meaningfully on different display devices with different display capacities |
| 09/28/1999 | US5960031 Ultrawide-band communication system and method |
| 09/28/1999 | US5958081 Energy efficient remote control protocol with improved reliability |
| 09/28/1999 | CA2139095C Real-time digital audio compression/decompression system |
| 09/23/1999 | WO1999048214A2 Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form |
| 09/23/1999 | CA2290644A1 Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form |
| 09/22/1999 | EP0943185A1 Phase shift encoded subchannel |
| 09/22/1999 | EP0769225B1 Signal processing circuit |
| 09/22/1999 | CN1229546A Arrangement and methods for generating radio frequency signal |
| 09/22/1999 | CN1229501A Method and device for coding audio signal by 'forward' and 'backward' LPC analysis |
| 09/21/1999 | US5956674 Multi-channel predictive subband audio coder using psychoacoustic adaptive bit allocation in frequency, time and over the multiple channels |
| 09/21/1999 | US5954834 Systems and methods for communicating desired audio information over a communications medium |
| 09/16/1999 | WO1999046914A2 Communication device and method of operation |
| 09/16/1999 | WO1999007076A3 Adaptive channel encoding method and device |
| 09/14/1999 | US5953698 Speech signal transmission with enhanced background noise sound quality |
| 09/14/1999 | US5952956 Time domain radio transmission system |
| 09/10/1999 | WO1999033050A3 Removing periodicity from a lengthened audio signal |
| 09/09/1999 | DE19827476C1 Bidirectional digital data transmission method for use between transponder and read/write device |
| 09/07/1999 | CA2158185C Hybrid equalizer arrangement for use in data communications equipment |
| 09/01/1999 | EP0938781A2 Transmission system with improved reconstruction of missing parts |
| 08/31/1999 | US5946652 Methods for non-linearly quantizing and non-linearly dequantizing an information signal using off-center decision levels |
| 08/31/1999 | US5946353 Method and apparatus for external intermediate data processing |
| 08/31/1999 | US5946352 Method and apparatus for downmixing decoded data streams in the frequency domain prior to conversion to the time domain |
| 08/31/1999 | CA2098772C Method and apparatus for communicating interleaved data |
| 08/25/1999 | EP0649558B1 Transmission system comprising at least a coder |
| 08/25/1999 | EP0649557B1 Transmission system comprising at least a coder |
| 08/24/1999 | US5943372 Orthogonal polarization and time varying offsetting of signals for digital data transmission or reception |
| 08/24/1999 | US5943329 Code division multiple access mobile communication system |
| 08/19/1999 | WO1999041865A1 Modulating method, modulating device, demodulating method, and demodulating device |
| 08/18/1999 | EP0936772A2 Unequal error protection for perceptual audio coders |
| 08/17/1999 | US5940434 Walsh-QPSK chip modulation apparatus for generating signal waveform in a direct sequence spread spectrum communication system |