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. 05, 1988
Filed:
Feb. 05, 1986
Applicant:
Inventor:
Andrew de Fremont, Chelmsford, GB;
Assignee:
The Marconi Company Limited, Stanmore, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358214 ; 358223 ;
Abstract
A telecine apparatus uses a line array electro-optical image transducer which is illuminated with bias light in addition to the projection light passing through the film. The bias light serves to operate the transducer on a linear portion of its characteristic, and the bias light is pulsed on during the integration periods of the transducer so as to give an accurate and reproducible control of the bias value. The transducer itself has a controllable variable integration period.