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:
Jun. 01, 1976
Filed:
Feb. 20, 1974
Matsushita Electric Industrial Co., Ltd., Osaka, JA;
Abstract
A video signal processing system for reproducing a colorplexed composite video signal obtained by colorplexing a frequency shifted chrominance signal shifted to a lower frequency band and a luminance signal by using frequency interlacement, the composite video signal being recorded in the form of an angular modulation signal on a recording medium, and converting the reproduced signal into a standard color television signal. In this system, the chrominance signal band component is extracted from the reproduced composite video signal, and the extracted signal is frequency converted into a signal in the frequency band of the chrominance signal in the standard color television signal. The frequency converted signal is then coupled to a comb filter to separate the chrominance signal. The chrominance signal thus obtained is combined with a signal obtained by removing the chrominance signal component from the reproduced composite video signal, thereby recovering the standard color television signal.