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:
Jul. 11, 2000
Filed:
Aug. 05, 1998
Tomoaki Uchida, Noda, JP;
Victor Company of Japan, Ltd., Yokohama, JP;
Abstract
In a contour correction apparatus, a first sample is selected from among at least five plural samples of an input digital video signal as an indication of an upper limit value. The plural samples correspond to neighboring pixels respectively. The first sample has a value greater than a center value among values of the plural samples. A second sample is selected from among at least the five plural samples as an indication of a lower limit value. The second sample has a value smaller than the center value among the values of the plural samples. High-frequency signal components are generated with respect to a center sample among the plural samples. The high-frequency signal components are added to the center sample among the plural samples to generate an addition-resultant signal. A value of the addition-resultant signal is limited to within a range between the upper limit value and the lower limit value.