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)
11/1998
11/12/1998WO1998035341A3 Transmission system for transmitting speech signals
11/11/1998EP0877490A1 Method and device for communication over delta-sigma converters
11/10/1998US5835889 Method and apparatus for detecting hangover periods in a TDMA wireless communication system using discontinuous transmission
11/10/1998US5835668 Transmission, recording and reproduction of digital data and time information in transport packets using a compression ratio
11/10/1998US5835508 Network for transmitting information data without error correction when a transmission channel quality is good, or with redundancy bits of a predetermined length added to each datum when the channel quality is poor
11/04/1998EP0875106A1 A self-initialized coder and method thereof
11/03/1998US5832035 Fast locking mechanism for channelized ultrawide-band communications
11/03/1998CA2118227C Coordinated coding for digital transmission
11/03/1998CA2117922C Modem-channel bank converter
10/1998
10/28/1998CN1197558A Cellular communication system with multiple code rates
10/28/1998CN1197337A Method and apparatus for spectral efficient transmission of CDMA modulated signals
10/27/1998CA2099436C Transmission error recovery for digital communication systems
10/22/1998WO1998047297A2 Advance indication of a transcoding change
10/22/1998WO1998047247A1 Interpolative compression of sampled-data signals
10/22/1998WO1998047134A1 Method and device for coding an audio signal by 'forward' and 'backward' lpc analysis
10/21/1998CN1196612A Speech transmission/reception system in which error data is replaced by speech synthesized data
10/20/1998US5826100 Digital signal processor for executing multiple instruction words
10/20/1998US5825976 Device and method for efficient utilization of allocated transmission medium bandwidth
10/20/1998US5825816 Spectral and power shaping mapper for high data rate signalling
10/20/1998US5825671 Signal-source characterization system
10/20/1998US5825310 Signal encoding method
10/15/1998WO1998045977A2 Mapper for high data rate transmission through channels subject to robbed bit signalling
10/15/1998WO1998045970A1 System and method for spectrally shaping transmitted data signals
10/15/1998WO1998045833A1 Variable bitrate speech transmission system
10/15/1998CA2285073A1 System and method for spectrally shaping transmitted data signals
10/15/1998CA2284768A1 Mapper for high data rate transmission through channels subject to robbed bit signalling
10/13/1998US5822725 VOX discrimination device
10/13/1998US5822465 Image encoding by vector quantization of regions of an image and codebook updates
10/13/1998US5822371 Mapper for high data rate signalling
10/08/1998WO1998035448A3 Communication network for transmitting speech signals
10/07/1998EP0869623A2 Method and apparatus for spectrally efficient transmission of CDMA modulated signals
10/07/1998EP0869477A2 Apparatus for speech coding using a multipulse excitation signal
10/07/1998EP0600504B1 Method of and device for speech coding based on analysis-by-synthesis techniques
10/07/1998CN1195414A Method and apparatus for generating and encoding line spectral square roots
10/07/1998CN1195235A Signal processors
10/07/1998CN1195233A Signal processors
10/06/1998US5819214 Length of a processing block is rendered variable responsive to input signals
10/06/1998US5819000 Magnetic recording and playback apparatus
10/06/1998US5818888 Sample rate converter
10/06/1998US5818873 Single clock cycle data compressor/decompressor with a string reversal mechanism
10/06/1998US5818854 Reed-solomon decoder
10/06/1998CA2106438C Packet mode digital data receiver
10/03/1998CA2228714A1 Method and apparatus for spectral efficient transmission of cdma modulated signals
09/1998
09/30/1998EP0867862A2 Coding and decoding system for speech and musical sound
09/30/1998CN1194516A Circuit for synthesizing multiple pulse coding modulation data
09/29/1998US5815600 Image data signal compression/transmission method and image data signal compression/transmission system
09/29/1998US5815530 Data converters for sound equipment
09/29/1998US5815529 Transmission system for digital audio broadcasting that incorporates a rotator in the transmitter
09/29/1998US5815503 In a multi-function communications system
09/29/1998US5815419 Data interpolating circuit
09/29/1998US5815207 Method for coding a video signal
09/23/1998EP0866567A2 Transmission/reception unit with bidirectional equalization
09/23/1998EP0866554A2 Signal processors
09/23/1998EP0866443A2 Speech signal coder
09/23/1998CN1193786A Dual subframe quantization of spectral magnitudes
09/22/1998US5812672 Method for reducing data in the transmission and/or storage of digital signals of several dependent channels
09/22/1998US5812081 Time domain radio transmission system
09/22/1998US5812075 Combined DAQ/RBS compensation system and method for enhancing the accuracy of digital data communicated through a network
09/22/1998CA2131280C Structured quantizer for sources with memory
09/22/1998CA2124713C Long term predictor
09/22/1998CA2120679C Dual mode amplifier network for radiotelephone
09/22/1998CA2103147C Process for finding the overall monitoring threshold during a bit-rate-reducing source coding
09/22/1998CA2100154C Switched signal processing circuit
09/16/1998EP0865029A1 Efficient decomposition in noise and periodic signal waveforms in waveform interpolation
09/16/1998EP0864146A1 Multi-channel predictive subband coder using psychoacoustic adaptive bit allocation
09/16/1998CN1193159A Speech encoding and decoding method and apparatus, telphone set, tone changing method and medium
09/16/1998CN1193158A Speech encoding method and apparatus, and sound signal encoding method and apparatus
09/15/1998US5808574 Systems for achieving enhanced frequency resolution
09/15/1998US5808569 Transmission system implementing different coding principles
09/15/1998CA2112151C Digital data demodulating apparatus
09/11/1998WO1998039882A1 Improvements in ultrafast time hopping cdma-rf
09/11/1998WO1998039768A1 A high resolution post processing method for a speech decoder
09/11/1998CA2282693A1 A high resolution post processing method for a speech decoder
09/11/1998CA2229182A1 Transmission/reception unit with bidirectional equalization
09/09/1998EP0863500A2 Variable rate speech coding method and decoding method
09/09/1998CN1192609A Re-sampling circuit and associated method
09/09/1998CN1192563A Frequency variable sound coding method and method for decoding same
09/08/1998US5805469 Digital audio signal processing apparatus and method for error concealment
09/03/1998WO1998038766A1 Sample rate converter
09/03/1998WO1998038752A1 Mapper for high data rate signalling
09/03/1998WO1998038631A1 Apparatus and method for rate determination in a communication system
09/03/1998CA2280005A1 Mapper for high data rate signalling
09/01/1998US5802108 Waveform correction apparatus
09/01/1998CA2126928C Ringdown and ringback signalling for a computer-based multifunction personal communications system
08/1998
08/27/1998WO1998037544A1 Method and devices for coding discrete signals or for decoding coded discrete signals
08/25/1998US5799039 Method and apparatus for error mitigating a received communication signal
08/20/1998WO1998036577A1 Predictive coding method and decoding method for dynamic image
08/19/1998EP0859354A2 LSP prediction coding method and apparatus
08/13/1998WO1998035450A2 An information coding method and devices utilizing error correction and error detection
08/13/1998WO1998035448A2 Communication network for transmitting speech signals
08/13/1998WO1998035447A2 Audio coding method and apparatus
08/13/1998WO1998035341A2 Transmission system for transmitting speech signals
08/13/1998DE19804584A1 Verfahren und Vorrichtung zum Codieren und Decodieren von Audiosignalen Method and apparatus for encoding and decoding of audio signals
08/12/1998EP0858230A1 Recording and producing an MPEG information signal on/from a record carrier
08/12/1998EP0857386A1 Digital-to-analog communication device and method
08/12/1998EP0857385A1 Digital-to-analog communication device and method
08/12/1998EP0857375A1 Method of and apparatus for coding, manipulating and decoding audio signals
08/11/1998US5794199 Method and system for improved discontinuous speech transmission
08/11/1998US5793903 Multimedia rendering marker and method
08/11/1998US5793809 Transparent technique for Mu-law modems to detect an all-digital circuit connection
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