Acquisition patent
2020/06/10
APPLICATION OF REAL SIGNAL TIME VARIATION WAVELET ANALYSIS
（3662826）
2020/05/21
APPLICATION OF REAL SIGNAL TIME VARIATION WAVELET ANALYSIS
（US-2020-0160962-A1）
2002/04/30
Method of modifying feature parameter for speech recognition, method of speech recognition and speech recognition apparatus
（6381572）
2000/05/23
Speech recognition method and speech recognition apparatus
（6067513）
1999/05/11
Method of preparing speech model and speech recognition apparatus using this method
（5903865）
1998/10/22
Speech recognition method and speech recognition apparatus
（98120007）
1996/08/20
Method of preparing speech model and speech recognition apparatus using this method
（96306067）
1995/03/07
Signal processing circuit for audio apparatus
（5396562）
1993/10/19
Signal processing circuit in an audio device
（5255325）
1993/03/18
Signal compressor for audio reproduction system - detects input signal level to access tables containing output values for compressing different signal ranges
（000004221428）
1993/03/18
Signal processor for audio reproduction, e.g. for CD player - has detector to identify pre-emphasis based on 4 bit code to control de-emphasiser coupled to amplifier gain control,
（000004223906）