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:
Jan. 18, 1983
Filed:
Mar. 02, 1981
Applicant:
Inventor:
Toshitaka Hirata, Tokyo, JP;
Assignee:
Rocoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358280 ; 358282 ; 358160 ;
Abstract
An image signal processing method in which an image light is projected on photoelectric conversion means and an image signal produced by said photoelectric conversion means is changed into an image signal in a binary form. The amplitude and level of an information signal to be binarily processed are kept nearly constant according to the invention and consequently the binary processing can be performed with a least leakage of informations.