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. 13, 2007
Filed:
Apr. 28, 2005
Kazuhiro Suzuki, Yokohama, JP;
Hideyuki Funaki, Tokyo, JP;
Yoshinori Iida, Tokyo, JP;
Yujiro Naruse, Yokohama, JP;
Kazuhiro Suzuki, Yokohama, JP;
Hideyuki Funaki, Tokyo, JP;
Yoshinori Iida, Tokyo, JP;
Yujiro Naruse, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
In an acoustoelectric converter element, a light wave from a light source is introduced into a first optical waveguide of a vibration substrate, and diffracted by a diffraction grating disposed on the first optical waveguide. The diffracted light is directed to and detected by a photo detector. Here, the vibration substrate is so supported as to vibrate with respect to an acoustic wave. Therefore, the diffracted light detected by the photo detector is modulated by the acoustic wave, and a signal is output from the detector in accordance with the acoustic wave.