Inventor
IWAHASHI NAOTO
JP27 patents
⚠️ This page may combine multiple inventors who share the name “IWAHASHI NAOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
20 patentsUS6799162B1Sep 28, 2004
Semi-supervised speaker adaptation
SONY CORP131 citations97
US5115240AMay 19, 1992
Method and apparatus for encoding voice signals divided into a plurality of frequency bands
SONY CORP111 citations95
US4837802AJun 6, 1989
Radio communication method and system
SONY CORP92 citations95
US5704006ADec 30, 1997
Method for processing speech signal using sub-converting functions and a weighting function to produce synthesized speech
SONY CORP24 citations92
US5452398ASep 19, 1995
Speech analysis method and device for suppyling data to synthesize speech with diminished spectral distortion at the time of pitch change
SONY CORP20 citations92
US5299240AMar 29, 1994
Signal encoding and signal decoding apparatus
SONY CORP28 citations92
US7509256B2Mar 24, 2009
Feature extraction apparatus and method and pattern recognition apparatus and method
SONY CORP28 citations91
US7117151B2Oct 3, 2006
Feature extraction apparatus and method and pattern recognition apparatus and method
SONY CORP29 citations91
US6910010B2Jun 21, 2005
Feature extraction apparatus and method and pattern recognition apparatus and method
SONY CORP17 citations91
US5070515ADec 3, 1991
Method and apparatus for processing digital signal
SONY CORP22 citations88
US7010477B1Mar 7, 2006
Information processing device information processing method, and recording medium
SONY CORP7 citations74
US6134525AOct 17, 2000
Identification-function calculator, identification-function calculating method, identification unit, identification method, and speech recognition system
SONY CORP7 citations74
US5828998AOct 27, 1998
Identification-function calculator, identification-function calculating method, identification unit, identification method, and speech recognition system
SONY CORP7 citations74
US5299239AMar 29, 1994
Signal encoding apparatus
SONY CORP5 citations74
US5283814AFeb 1, 1994
Apparatus for processing digital signal
SONY CORP7 citations74
US5166981ANov 24, 1992
Adaptive predictive coding encoder for compression of quantized digital audio signals
SONY CORP13 citations74
US5123043AJun 16, 1992
Radio communication method and system
SONY CORP8 citations73
US6816831B1Nov 9, 2004
Language learning apparatus and method therefor
SONY CORP3 citations63
US5299238AMar 29, 1994
Signal decoding apparatus
SONY CORP3 citations63
USRE36559EFeb 8, 2000
Method and apparatus for encoding audio signals divided into a plurality of frequency bands
SONY CORP2 citations62
NAKANO MIKIO
2 patentsIWAHASHI NAOTO
2 patentsUS5197087AMar 23, 1993
Signal encoding apparatus
IWAHASHI NAOTO14 citations80
US8868410B2Oct 21, 2014
Non-dialogue-based and dialogue-based learning apparatus by substituting for uttered words undefined in a dictionary with word-graphs comprising of words defined in the dictionary
IWAHASHI NAOTO1 citations50