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, 1989
Filed:
May. 02, 1988
Applicant:
Inventor:
Stuart E Lang, Montville, NJ (US);
Assignee:
Dubner Computer Systems, Inc., Paramus, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358 37 ; 358 31 ; 358 36 ;
Abstract
A diagonal correction method of a composite video decoder for reducing cross color errors detects the presence of diagonal luminance information in a luminance signal recovered from an encoded video signal. The recovered luminance signal is filtered to produce a diagonal correction value which is added to the recovered luminance signal as well as to a corresponding recovered chrominance signal when the diagonal luminance information is detected. The resulting luminance and chrominance signals have enhanced contrast and reduced chrominance error.