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:
Apr. 13, 1976
Filed:
Nov. 18, 1974
Applicant:
Inventor:
Katsuo Murase, Hino, JA;
Assignee:
Ricoh Co., Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
178 / ;
Abstract
A cylindrical scanner scans two lines of a document for each revolution, and has two marks spaced approximately 180.degree. from each other which generate a synchronizing signal for each scanline. In order to allow for production inaccuracies in the relative placement of the two marks, means are provided for shifting the scanning signals for each alternate scanline by an amount which corresponds to the error in the relative positions of the two synchronizing signal marks. Thus, the resulting scanlines are in proper phase relationship with each other.