Pioneer Corporation

Honda Motor Co., Ltd.

Kenji Yamagata

Takashi Aoki

Toshio Inoue

Akira Takahashi

Kosuke Sakamoto

Yasunori Kobayashi

Kenichiro Tada

Toshiro Tanikawa

Daisuke Ito

Ken Miyagawa

Tomohiro Miura

Kyotaro Sato

Shinya Hashimoto

Shinji Fukumoto

When the frequency of an engine rotation signal reaches a predetermined frequency, a comparator of a switching unit outputs a switching control signal to selectors and a filter coefficient updater. Based on the switching control signal, the selector switches from a connection between one memory and a corrector to a connection between another memory and the corrector, thereby changing the transfer characteristics C^rr of the corrector from C^11 to C^10. Based on the switching control signal, the selector switches from a connection between one ADC and a filter coefficient updater to the connection between another ADC and the filter coefficient updater, thereby supplying the filter coefficient updater with an error signal, rather than an error signal.

Active vibratory noise control apparatus

An information record apparatus includes: a down-convert device for down-converting a first content information having a first reproduction quality (HD) into a second content information having a second reproduction quality (SD) which is lower quality than the first reproduction quality; a scramble device for generating scramble information by scrambling the first content information, on the basis of a predetermined scramble key; and a first record device for recording the second content information and the scramble information into a first record medium.

Scrambling content information in a first recording medium when downgrading the quality of content information for storage on a second recording medium

Growing community of inventors

Kawagoe, Japan

Kenji Yamagata