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:
Jun. 13, 2000
Filed:
Mar. 28, 1996
Dayakar C Reddy, San Jose, CA (US);
Modugu V Reddy, San Jose, CA (US);
Sriram Ramamurthy, Fremont, CA (US);
Cirrus Logic, Inc., Fremont, CA (US);
Abstract
A digital system provides command data to a display system during the display time period such that minimal image degradation occurs. The digital system includes a CPU coupled to a graphics controller coupled to a display system via a cable. The display system includes an intelligent display driver controller (IDDC), driver circuits, display screen, and possibly sensors. The IDDC operates on image data and instructs the driver circuits to display an image on the display screen. Operating condition changes measured by transducers may result in a degradation in image quality unless a response is made. The digital system may automatically respond to operating condition changes to maintain a predetermined image quality level. Alternatively a user's request may change the image quality. In either case the CPU is interrupted and it provides one or more control sets of command data interspersed within the image data transparently to the graphics controller. The IDDC receives one or more control sets from the graphics controller and may store a control set to adjust the control over the driver circuits thereby preserving the image quality. Changes to hardware and software are minimized to reduce the costs of adding these improvements.