Inventor
AMANO FUMIO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “AMANO FUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
18 patentsUS5261027ANov 9, 1993
Code excited linear prediction speech coding system
FUJITSU LTD122 citations97
US5115469AMay 19, 1992
Speech encoding/decoding apparatus having selected encoders
FUJITSU LTD79 citations96
US5086471AFeb 4, 1992
Gain-shape vector quantization apparatus
FUJITSU LTD68 citations96
US5091955AFeb 25, 1992
Voice coding/decoding system having selected coders and entropy coders
FUJITSU LTD71 citations94
US5263119ANov 16, 1993
Gain-shape vector quantization method and apparatus
FUJITSU LTD29 citations92
US5224167AJun 29, 1993
Speech coding apparatus using multimode coding
FUJITSU LTD36 citations92
US5138662AAug 11, 1992
Speech coding apparatus
FUJITSU LTD48 citations92
US4959863ASep 25, 1990
Secret speech equipment
FUJITSU LTD27 citations92
US4890325ADec 26, 1989
Speech coding transmission equipment
FUJITSU LTD35 citations92
US4831636AMay 16, 1989
Coding transmission equipment for carrying out coding with adaptive quantization
FUJITSU LTD37 citations91
US5003604AMar 26, 1991
Voice coding apparatus
FUJITSU LTD23 citations89
US4951269AAug 21, 1990
Echo canceller with short processing delay and decreased multiplication number
FUJITSU LTD34 citations89
US5136577AAug 4, 1992
Sub-band acoustic echo canceller
FUJITSU LTD49 citations87
US4312075AJan 19, 1982
Timing-phase recovery circuit
FUJITSU LTD20 citations79
US6871175B2Mar 22, 2005
Voice encoding apparatus and method therefor
FUJITSU LTD7 citations74
US5274741ADec 28, 1993
Speech coding apparatus for separately processing divided signal vectors
FUJITSU LTD19 citations74
US5151968ASep 29, 1992
Vector quantization encoder and vector quantization decoder
FUJITSU LTD17 citations71
US5231692AJul 27, 1993
Pitch period searching method and circuit for speech codec
FUJITSU LTD3 citations62