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:
Nov. 06, 2001
Filed:
Jan. 20, 1998
Applicant:
Inventors:
Richard Cappels, San Jose, CA (US);
Jesse Devine, Sunnyvale, CA (US);
Assignee:
Apple Computer, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/02 ; G06T 1/140 ;
U.S. Cl.
CPC ...
G09G 5/02 ; G06T 1/140 ;
Abstract
A system measures the color output of a computer monitor by using predetermined phosphor characteristics of the monitor that are stored in monitor memory. The relationship between beam current and pixel values is then determined and stored in computer memory. When a color output measurement is taken, the average pixel values are determined. The beam currents associated with the average pixel values are then accessed from the computer memory and multiplied by the phosphor characteristics to obtain an accurate color output measurement.