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:
Sep. 01, 1987
Filed:
Nov. 09, 1984
Masahiro Honjo, Neyagawa, JP;
Akio Hashima, Tsuzuki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A video signal recording/reproducing apparatus for recording and reproducing a video signal onto and from a recording medium with a magnetic head. In this apparatus, the recording chrominance signal processing block is provided with a circuit for producing a continuous oscillation signal having the same frequency, gain and phase with those of a normal color burst signal, a switch for normally passing the chrominance signal and, at a period including the normal color burst signal and longer than the duration of the normal color burst signal, passing the continuous oscillation signal, so that a chrominance signal is obtained at the output of the switch with a duration expanded color burst signal. This chrominance signal is mixed with the frequency converted chrominance signal, and the thus mixed signal is recorded on the recording medium. The duration expanded color burst signal is contracted to the normal duration of color burst signal by a muting circuit in the reproduced chrominance signal processing block.