Inventor
TASAKI HIROHISA
JP29 patents
⚠️ This page may combine multiple inventors who share the name “TASAKI HIROHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
21 patentsUS6052661AApr 18, 2000
Speech encoding apparatus and speech encoding and decoding apparatus
MITSUBISHI ELECTRIC CORP129 citations98
US6526378B1Feb 25, 2003
Method and apparatus for processing sound signal
MITSUBISHI ELECTRIC CORP54 citations96
US5864794AJan 26, 1999
Signal encoding and decoding system using auditory parameters and bark spectrum
MITSUBISHI ELECTRIC CORP66 citations96
US7191126B2Mar 13, 2007
Sound encoder and sound decoder performing multiplexing and demultiplexing on main codes in an order determined by auxiliary codes
MITSUBISHI ELECTRIC CORP16 citations92
US7130796B2Oct 31, 2006
Voice encoding method and apparatus of selecting an excitation mode from a plurality of excitation modes and encoding an input speech using the excitation mode selected
MITSUBISHI ELECTRIC CORP36 citations92
US6408268B1Jun 18, 2002
Voice encoder, voice decoder, voice encoder/decoder, voice encoding method, voice decoding method and voice encoding/decoding method
MITSUBISHI ELECTRIC CORP37 citations92
US5822732AOct 13, 1998
Filter for speech modification or enhancement, and various apparatus, systems and method using same
MITSUBISHI ELECTRIC CORP31 citations92
US4965580AOct 23, 1990
Quantizer and inverse-quantizer
MITSUBISHI ELECTRIC CORP23 citations92
US6516050B1Feb 4, 2003
Double-talk detecting apparatus, echo canceller using the double-talk detecting apparatus and echo suppressor using the double-talk detecting apparatus
MITSUBISHI ELECTRIC CORP21 citations91
US5553194ASep 3, 1996
Code-book driven vocoder device with voice source generator
MITSUBISHI ELECTRIC CORP21 citations88
US7315817B2Jan 1, 2008
Sound encoder and sound decoder
MITSUBISHI ELECTRIC CORP16 citations84
US7047184B1May 16, 2006
Speech coding apparatus and speech decoding apparatus
MITSUBISHI ELECTRIC CORP14 citations84
US6496796B1Dec 17, 2002
Voice coding apparatus and voice decoding apparatus
MITSUBISHI ELECTRIC CORP7 citations74
US5268991ADec 7, 1993
Apparatus for encoding voice spectrum parameters using restricted time-direction deformation
MITSUBISHI ELECTRIC CORP14 citations74
US7756698B2Jul 13, 2010
Sound decoder and sound decoding method with demultiplexing order determination
MITSUBISHI ELECTRIC CORP1 citations63
US7756699B2Jul 13, 2010
Sound encoder and sound encoding method with multiplexing order determination
MITSUBISHI ELECTRIC CORP1 citations63
US7454328B2Nov 18, 2008
Speech encoding system, and speech encoding method
MITSUBISHI ELECTRIC CORP4 citations63
US7420993B2Sep 2, 2008
Variable length code multiplexer and variable length code demultiplexer
MITSUBISHI ELECTRIC CORP5 citations63
US7203641B2Apr 10, 2007
Voice encoding method and apparatus
MITSUBISHI ELECTRIC CORP5 citations63
US7006966B2Feb 28, 2006
Speech encoding apparatus, speech encoding method, speech decoding apparatus, and speech decoding method
MITSUBISHI ELECTRIC CORP4 citations63
US6643618B2Nov 4, 2003
Speech decoding unit and speech decoding method
MITSUBISHI ELECTRIC CORP5 citations62
FURUTA SATORU
4 patentsUS8762139B2Jun 24, 2014
Noise suppression device
FURUTA SATORU8 citations83
US8724828B2May 13, 2014
Noise suppression device
FURUTA SATORU6 citations72
US8989403B2Mar 24, 2015
Noise suppression device
FURUTA SATORU2 citations62
US8706497B2Apr 22, 2014
Speech signal restoration device and speech signal restoration method
FURUTA SATORU0 citations51