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. 02, 1999
Filed:
Sep. 02, 1997
William Robert Lee, Apex, NC (US);
Darryl Jonathan Rumph, Cary, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A multimedia display system includes a central processing unit, a storage device associated with the central processing unit, a standard interface bus to which the central processing unit and the storage device are connected, a graphics processor connected to the bus for generating graphics data in response to commands from the central processor, a digitizer for converting an analog video signal to digital form and for producing synchronization signals, a video processor for processing the digitized video data to produce pixel representations of the digitized video signal, a shared frame buffer for storing the graphics data generated by the graphics processor and the pixel representations of the video signal, a device for converting the stored digital data to a data stream appropriate for driving a video monitor, and a video monitor for displaying the graphics data and the video information, wherein the video processor generates a programmable variable phase vertical synchronization signal for synchronizing video data and graphics data through a shared frame buffer with the capacity to handle relocatable windows.