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:
Apr. 26, 1994
Filed:
Feb. 23, 1993
Nobuyoshi Kobayashi, Tokyo, JP;
Hisanori Kominami, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A digital video signal processing apparatus for reducing the data rate of, and interpolating digital, video signals of a component format. The apparatus comprises a half-band high pass filter having a coefficient profile equivalent to that obtained by setting a center coefficient of an odd-order half-band low pass filter to zero, or a notch filter having a coefficient profile equivalent to that obtained by eliminating a center coefficient and even-numbered coefficients of such a low pass filter, and a delay line for giving a predetermined delay time to the signal supplied thereto, whereby the data rate of multiplexed or time-divided signals can be reduced, or the signals interpolated, in a relatively simple design employing a single digital filter.