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:
Jun. 12, 2012

Filed:

Aug. 06, 2008
Applicants:

Mari Kaneko, Kanagawa, JP;

Hirotoshi Aizawa, Kanagawa, JP;

Inventors:

Mari Kaneko, Kanagawa, JP;

Hirotoshi Aizawa, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 9/77 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a three-dimensional Y/C separating circuit that has a high responsibility to a motion in a video signal and can reduce a memory capacity, a three-dimensional Y/C separating circuit has a 2-frame memorythat delays a color signal by an inversion period thereof to produce a delayed composite video signal, a luminance motion detecting part that produces a first frame correlation signal by a subtraction processing between the delayed composite video signal and a composite video signal, an adding circuitthat produces a mixed video signal by an addition processing between the delayed composite video signal and the composite video signal, a frame memorythat delays the mixed video signal by one frame period, a subtracting circuitthat produces a second frame correlation signal by a subtraction processing between the mixed video signal and the mixed video signal delayed by one frame period, a determining circuitthat determines a motion from the first and second frame correlation signals and produces a mixing ratio controlling signal, and mixing circuits that output a luminance signal and a color signal, respectively, based on the mixing ratio controlling signal.


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