Inventor

KAWAMURA AKIHISA

JP72 patents

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

KAWAMURA AKIHISA

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Compressed code decoding device and audio decoding device

Decoding device

Sound field and sound image control apparatus and method

Audio information provision system

Sound amplifying apparatus with automatic howl-suppressing function

Digital equalizer apparatus enabling separate phase and amplitude characteristic modification

Sound field controller and control method

Feedback detector and suppressor

Sound field controller

Sound field controller

Data transmitting method, data receiving method, data transmitting device, and data receiving device

Encoding device and decoding device

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

Sound image localization device and sound image localization method

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

Compressed code decoding device and audio decoding device

Sound field and sound image control apparatus and method

Sound reproduction system and a sound reproduction method

Music/voice discriminating apparatus

Calculation of filter factors for digital filter

Apparatus and method for controlling tone quality

Apparatus for supplying control codes to sound field reproduction apparatus

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

Signal processor

Reproduction apparatus and music delivery system

Apparatus and method for audio data/audio-related information transfer

Exponential calculation device and decoding device

Exponential calculation device and decoding device

Decoding device

Sound field variable apparatus

Sound field control system

Data transmission method, data receiving method, video data transmission apparatus and video data receiving apparatus

Transmission method of digital audio data with video data

Reflection sound compression apparatus

Sound field control apparatus

Audio decoding device for decoding coded audio information with multiple channels

Audio decoding device and signal processing device for decoding multi-channel signals with reduced memory requirements

Apparatus for changing a sound field

PANASONIC IP MAN CO LTD

Speaker device

Signal processing method and speaker system

Speaker device

Speaker device

MATUSHITA ELECTRIC IND CO LTD

Decoding circuit and reproduction apparatus which mutes audio after header parameter changes

PANASONIC CORP

Energy shaping apparatus and energy shaping method

TAKAGI YOSIAKI

Audio decoder

TAKAGI YOSHIAKI

Multi-channel acoustic signal processing device

PANASONIC IP CORP AMERICA

Coding apparatus and coding method

SONY CORP

Error correction encoding and decoding methods and apparatuses for DVI audio data

MIYASAKA SHUJI

Signal processing device

YAZKI CORP

Relay device for rotating members