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:
Dec. 22, 1981
Filed:
Jul. 07, 1980
Hilbrand J Smit, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A television circuit for changing an interlace factor by a factor of two or an integral power thereof and by a factor of a half, respectively. The circuit comprises a frequency division circuit which, when the field synchronizing signal to be processed, is applied to it supplies a square-wave output signal as a gate signal, and signal channels each having a multivibrator circuit and a first and a second subsequent series-arranged coincidence gate. In two signal channels the field synchronizing signal is applied to the multivibrator circuit and to the second gate, a signal originating from an other signal channel being used for this purpose in further signal channels.