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:
Sep. 19, 1995
Filed:
Sep. 24, 1993
Applicant:
Inventors:
Dean Drako, Cupertino, CA (US);
Steven Roskowski, Sunnyvale, CA (US);
Assignee:
Apple Computer, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345118 ; 345200 ;
Abstract
A method of eliminating frame tears from the output display in a computer system including the steps of determining a safe region for furnishing data to a frame buffer, selecting a value of a first interrupt to signal the beginning of the safe region, determining the position of the scan from the frame buffer, comparing the value of the position of the scan from the frame buffer and the value of the first interrupt, and transferring information to the frame buffer only in response to the interrupt indicating a safe region.