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. 11, 2001
Filed:
Feb. 19, 1998
Kazuki Ito, Yokosuka, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
A video composite signal is thinned by sub-Nyquist sampling signal to reduce a capacity of a memory, a carrier chrominance signal is separated from the thinned video composite signal by an inter-frame YC separation circuit,the first separated carrier chrominance signal is interpolated by horizontal interpolation circuit,to reproduce the lost data due to thinning, the interpolation data is compensated by an adding circuit,in accordance with a high frequency component in a second separated carrier chrominance signal separated without thinning detected by an intra-field YC separation circuit,and high frequency component extraction circuit,when an edge is present in the separated carrier chrominance signal from the inter-frame YC separation circuit,which is detected by an edge detection circuit,the first separated carrier chrominance signal is outputted at the timing corresponding to the sub-Nyquist sampling signal, the interpolation data is outputted at an interpolation timing when the edge is not present, and the compensated interpolation data outputted at the interpolation timing when the edge is-not present by a selection circuit,and the luminance signal is separated from the composite video signal with the outputted carrier chrominance signal by a subtractor