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:
Mar. 11, 1980
Filed:
Jun. 02, 1978
William H Counts, Lombard, IL (US);
Admiral Corporation, Schaumburg, IL (US);
Abstract
A bias boost circuit for a television receiver is disclosed, comprising a timing circuit for providing an exponentially decreasing bias to a video amplifier of the television receiver for a period of time corresponding to the initial warmup of the TV receiver, i.e. until the various amplifier and display portions are ready to display a high brightness image. The timing circuit comprises an RC circuit coupled to a power source of the TV receiver, whereby upon turn-on of the TV receiver the source's voltage is applied to the timing circuit, i.e. to its capacitor, to provide a decreasing voltage bias to the base of a transistor, whereby the transistor is gradually turned off thus decreasing exponentially a bias boost signal that is applied to the video amplifier and in particular, to its first stage.