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.

Date of Patent:
Apr. 15, 1997

Filed:

Aug. 08, 1994
Applicant:
Inventors:

Shigenori Shibue, Nagaokakyo, JP;

Yoshiaki Mimura, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
386 17 ;
Abstract

In a home VTR, a color signal processing circuit is capable of reproducing a color signal recorded as a lower converted color signal and preventing color unevenness which necessarily creates during visualizing. To avoid an adverse effect due to phase fluctuation created during reproducing, the color signal processing circuit is provided with a circuit for synchronizing a carrier with the phase fluctuation. In this circuit, an open loop circuit is connected to a closed loop circuit to achieve such synchronization. Specifically, the phase fluctuation in a low-frequency range is synchronized by a feedback feature of the closed loop circuit, while the phase fluctuation in a high-frequency range is synchronized by a detecting feature of the closed loop circuit.


Find Patent Forward Citations

Shibue, Shigenori. (1997). Color signal processing circuit in color vtr (U.S. Patent No. 5621537). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5621537

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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