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:
Dec. 07, 2004
Filed:
Nov. 29, 2000
Applicant:
Inventor:
Michael Larsen Richardson, Reading, PA (US);
Assignee:
Videotek, Inc., Pottstown, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/02 ;
U.S. Cl.
CPC ...
G09G 5/02 ;
Abstract
Video signal sample data that has three values in one color space definition can produce values that are out of range in another color space definition, namely color gamut errors. The invention produces a polar plot with superimposed or added color difference and/or primary color values as a function of hue, as in a vectorscope, but values that when combined by conversion or transcoding may produce gamut errors are combined in the inventive display. Thus, excursion over or under a predetermined limit value identifies the gamut error. The display includes or is switchable between color difference and primary color color space definition variables.