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:
Oct. 28, 1997
Filed:
Jul. 31, 1995
Sridhar Kotha, Fremont, CA (US);
Alexander Eglit, San Carlos, CA (US);
Robin Han, Saratoga, CA (US);
Cirrus Logic, Inc., Fremont, CA (US);
Abstract
A method and apparatus for horizontally and vertically positioning a video graphics adapter (VGA) display image on the screen of a flat panel display (FPD) is provided with a first counter for setting a horizontal FPD disable period associated with the FPD. A second counter sets the horizontal FPD enable period of the FPD. This horizontal FPD enable period is greater than a composite horizontal pixel time of a VGA image to be displayed. A first circuit controls the start time of a subsequent horizontal FPD enable period. This start time is based on the horizontal FPD disable period. A second circuit controls the end time of the subsequent horizontal FPD enable period. This end time is based on the horizontal FPD enable period. The VGA display image is begun based on the start time of the subsequent horizontal FPD enable period to locate the VGA display image at a desired horizontal position of the FPD screen. The vertical positioning of the image is performed by similar counters and circuits.