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:
Nov. 14, 2006
Filed:
Jul. 21, 2004
Kazuhiro Suzuki, Yokohama, JP;
Hideyuki Funaki, Tokyo, JP;
Keitaro Shigenaka, Hachioji, JP;
Tomio Ono, Yokohama, JP;
Tadashi Sakai, Yokohama, JP;
Yujiro Naruse, Yokohama, JP;
Yoshinori Iida, Tokyo, JP;
Ikuo Fujiwara, Yokohama, JP;
Kazuhiro Suzuki, Yokohama, JP;
Hideyuki Funaki, Tokyo, JP;
Keitaro Shigenaka, Hachioji, JP;
Tomio Ono, Yokohama, JP;
Tadashi Sakai, Yokohama, JP;
Yujiro Naruse, Yokohama, JP;
Yoshinori Iida, Tokyo, JP;
Ikuo Fujiwara, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An opto-acoustoelectric device encompasses a diaphragm having a diffraction grating, the diaphragm is susceptible to a vibration driven by an external force; a light source oriented to irradiate the diffraction grating; and a photo detector configured to detect the light diffracted by the diffraction grating and to convert the detected light into an electric signal. The electric signal corresponds to a displacement of the vibration in the diaphragm.