Invention Grant
- Patent Title: Active sound control apparatus
- Patent Title (中): 主动声控装置
-
Application No.: US12041990Application Date: 2008-03-04
-
Publication No.: US08526630B2Publication Date: 2013-09-03
- Inventor: Kosuke Sakamoto , Toshio Inoue , Akira Takahashi , Yasunori Kobayashi
- Applicant: Kosuke Sakamoto , Toshio Inoue , Akira Takahashi , Yasunori Kobayashi
- Applicant Address: JP Tokyo
- Assignee: Honda Motor Co., Ltd.
- Current Assignee: Honda Motor Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Rankin, Hill & Clark LLP
- Priority: JP2007-057122 20070307
- Main IPC: H04B1/00
- IPC: H04B1/00

Abstract:
An active sound control apparatus includes a delay circuit for delaying the output of a frequency component of a sound effect by delaying an engine rotation frequency signal representative of an engine rotation frequency [Hz], a delay circuit for delaying the output of an amplitude component of the sound effect by delaying an engine rotation frequency change signal representative of an engine rotation frequency change [Hz/second], and delay circuits for delaying the output of all components of the sound effect by delaying a control signal for controlling the outputs of speakers.
Public/Granted literature
- US20080310642A1 ACTIVE SOUND CONTROL APPARATUS Public/Granted day:2008-12-18
Information query