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:
Nov. 06, 1984
Filed:
Mar. 22, 1982
Ichitaro Sato, Atsugi, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a circuit for processing a video signal to be recorded, for example, in a VTR, as a frequency modulation of a relatively high frequency carrier, and in which, in advance of such frequency modulation and for the purpose of improving the signal-to-noise ratio particularly in respect to the so-called FM noise, the video signal is pre-emphasized and then clipped at a predetermined level for avoiding over-modulation; a compensating circuit responds to the pre-emphasized video signal for widening those overshoots thereof which are to be clipped and thereby avoiding waveform distortions that would otherwise occur at the locations of the clipped overshoots when the recorded signal is reproduced, frequency demodulated and then de-emphasized complementarily to the original pre-emphasis.