P

Inventor

MATSUMOTO MASAHARU

JP84 patents
⚠️ This page may combine multiple inventors who share the name “MATSUMOTO MASAHARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

29 patents
US7069223B1Jun 27, 2006

Compressed code decoding device and audio decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD76 citations98
US6295319B1Sep 25, 2001

Decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD115 citations98
US5796845AAug 18, 1998

Sound field and sound image control apparatus and method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD149 citations98
US5442712AAug 15, 1995

Sound amplifying apparatus with automatic howl-suppressing function

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD100 citations96
US4888808ADec 19, 1989

Digital equalizer apparatus enabling separate phase and amplitude characteristic modification

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD64 citations96
US5742688AApr 21, 1998

Sound field controller and control method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD69 citations95
US5572591ANov 5, 1996

Sound field controller

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD78 citations95
US5381482AJan 10, 1995

Sound field controller

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD87 citations95
US6904089B1Jun 7, 2005

Encoding device and decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD33 citations92
US6823310B2Nov 23, 2004

Audio signal processing device and audio signal high-rate reproduction method used for audio visual equipment

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations92
US6546105B1Apr 8, 2003

Sound image localization device and sound image localization method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations92
US6356639B1Mar 12, 2002

Audio decoding apparatus, signal processing device, sound image localization device, sound image control method, audio signal processing device, and audio signal high-rate reproduction method used for audio visual equipment

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD42 citations92
US6118821ASep 12, 2000

Compressed code decoding device and audio decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD25 citations92
US5684881ANov 4, 1997

Sound field and sound image control apparatus and method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD23 citations92
US5617478AApr 1, 1997

Sound reproduction system and a sound reproduction method

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD38 citations92
US5375188ADec 20, 1994

Music/voice discriminating apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD35 citations92
US4896285AJan 23, 1990

Calculation of filter factors for digital filter

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD26 citations92
US5164840ANov 17, 1992

Apparatus for supplying control codes to sound field reproduction apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD37 citations91
US7236838B2Jun 26, 2007

Signal processing apparatus, signal processing method, program and recording medium

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations84
US6751177B1Jun 15, 2004

Signal processor

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations84
US7050870B2May 23, 2006

Reproduction apparatus and music delivery system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD7 citations74
US6363407B1Mar 26, 2002

Exponential calculation device and decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations74
US6304890B1Oct 16, 2001

Exponential calculation device and decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US6297754B1Oct 2, 2001

Decoding device

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD14 citations74
US5233661AAug 3, 1993

Sound field variable apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD9 citations74
US5123050AJun 16, 1992

Sound field control system

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD17 citations74
US5144673ASep 1, 1992

Reflection sound compression apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD8 citations73
US5073942ADec 17, 1991

Sound field control apparatus

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD19 citations73
US5051942ASep 24, 1991

Method and apparatus for calculating filter factors

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD12 citations73

OHI SEISAKUSHO CO LTD

6 patents

PANASONIC IP MAN CO LTD

5 patents

FUJITSU LTD

4 patents

MATUSHITA ELECTRIC IND CO LTD

1 patent

HORIBA LTD

1 patent

PROCTER & GAMBLE

1 patent

NISSAN MOTOR

1 patent

PANASONIC CORP

1 patent

NIFCO INC

1 patent

Showing the top 50 of 84 patents by PatentIndex Score.