The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 2012
Filed:
Mar. 28, 2008
Toshio Inoue, Wako, JP;
Akira Takahashi, Wako, JP;
Kosuke Sakamoto, Wako, JP;
Yasunori Kobayashi, Wako, JP;
Toshio Inoue, Wako, JP;
Akira Takahashi, Wako, JP;
Kosuke Sakamoto, Wako, JP;
Yasunori Kobayashi, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A subtractor subtracts an echo canceling signal from a canceling error signal to estimate the resonant noise to be silenced at a position of a microphone, and outputs a first basic signal representing the estimated resonant noise as an input signal supplied to a controller. In the controller, a delay filter generates a second basic signal by delaying the first basic signal by a time value. The controller generates a control signal based on the first basic signal and the second basic signal.