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. 04, 1986
Filed:
Dec. 23, 1982
Applicant:
Inventors:
Ysukasa Yamashita, Nara, JP;
Masaharu Matano, Kyoto, JP;
Kazuhiko Mori, Osaka, JP;
Nobuhisa Inoue, Kyoto, JP;
Assignee:
Omron Tateisi Electronics Co., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
3403 / ;
Abstract
A surface acoustic wave generator is provided on an optical waveguide layer of an acousto-optical material. A group of parallel light beams each made significant according to the position of the path of propagation of light are made incident on the waveguide layer at an angle satisfying the Bragg diffraction condition with respect to a surface acoustic wave, and are successively diffracted by the wave, whereby a digital amount represented by the presence of light beams of the group is converted to an analog amount in terms of the power of light.