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:
Mar. 16, 1999
Filed:
Sep. 17, 1997
Applicant:
Inventors:
Teruhiro Yamada, Katano, JP;
Satoshi Takemoto, Hirokata, JP;
Takashi Ikeda, Higashiosaka, JP;
Toshio Obase, Cupertino, CA (US);
Assignee:
Sanyo Electric Co., Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
345475 ;
Abstract
A plurality of types of random dot pattern images each represented by data composed of a predetermined number of bits, one of which is one and the others of which are zero, and differing in the position of the bit which is one are overlapped, to produce one overlap image. A plurality of types of translation tables for obtaining an output image from the overlap image are successively switched, to successively output a plurality of types of images respectively corresponding to said random dot pattern images.