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. 23, 2001
Filed:
Dec. 23, 1998
Robert John Quirk, Glendale, AZ (US);
William Ray Hancock, Phoenix, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A system which utilizes two buffers of dual-port memory to seamlessly display video frames on a raster scanned video display device. Dual port memory is organized into two alternate memory banks, each having sufficient capacity to buffer a full frame of video data. As long as the display memory write and read addresses are sufficiently separated by a predetermined number of lines, video data is written and read using alternate banks of memory for each frame. When the write and read addresses are closer than a predetermined number of lines, the video data already stored in a given bank of memory is re-read. After the write and read addresses are again sufficiently separated, video data is again written and read using alternate banks of memory.