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:
May. 21, 1991
Filed:
Apr. 14, 1987
Applicant:
Inventors:
Norman A Peppers, Belmont, CA (US);
James R Young, Palo Alto, CA (US);
Gerald A Pierce, Redwood City, CA (US);
Kazuo Katsuki, Osaka, JP;
Ken Yamashita, Osaka, JP;
Assignee:
Nippon Sheet Glass Co., Ltd., Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
350314 ; 35016213 ; 250550 ;
Abstract
In a mask for transmitting a light subjected to a projection on a predetermined position and for detecting the light, transmittances of the mask are distributed in correspondence with a statistical distribution of the predetermined positions of the light. Information represented by optical signals can be detected with a high probability.