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:
Jul. 30, 1991
Filed:
Oct. 03, 1989
Applicant:
Inventor:
William E Westell, Weston, MA (US);
Assignee:
Honeywell Regelsysteme GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358214 ; 358 54 ; 358215 ; 355 20 ; 3461 / ;
Abstract
A film writer and viewer system operable to reduce the exposure requirements of the writer and thereby extend its life by providing a pre-exposure lamp to increase the density of the film to a first value and by providing an image enhancer on the output of a video camera viewing the film to increase the contrast between the information on the film and the background for subsequent viewing.