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.

Date of Patent:
Aug. 20, 1991

Filed:

Apr. 09, 1990
Applicant:
Inventor:

Yoshiyuki Ban, Chita, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H04N / ; H04N / ; B41J / ;
U.S. Cl.
CPC ...
358302 ; 3461 / ; 358 75 ;
Abstract

An image exposure apparatus exposes a photosensitive recording medium to an image corresponding to an image displayed on the screen of a cathode-ray tube which is used as a light source. A video image detector substantially detects whether there is a video image supplied to the cathode-ray tube or not. A microprocessor starts an exposure in response to an exposure command given by an exposure command switch only when it is detected by the video image detector that there is a video signal.


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