Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Reexamination Certificate
2000-09-05
2004-03-30
Nguyen, Cao (Kevin) (Department: 2173)
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
C345S629000
Reexamination Certificate
active
06714218
ABSTRACT:
BACKGROUND
This invention relates generally to processor-based systems, and, more particularly, to scaling an image on a display device of a processor-based system.
The ability to scale selected images, which may comprise pictures, text, graphics, and the like, on a display device of a processor-based system is generally a useful feature for processor-based system users. The visually impaired, for example, may utilize software applications that magnify contents of a display device of a processor-based system for better viewing. Additionally, users of graphically-oriented applications may wish to enlarge or magnify contents of a processor-based system display for a clearer or more detailed visual image.
Conventional methods of scaling images sometimes employ simple scaling algorithms, such as using replicating algorithms to enlarge or shrink images. As a result, in some instances, the scaled images may appear to have rougher (e.g., jagged) edges. Additionally, it is possible that some conventional scaling methods may not scale as expeditiously as desired, particularly when portions of large, complicated graphic images are being scaled to different sizes.
When scaling, in some instances, it is desirable to dynamically update the scaled image. That is, it is sometimes desirable to “dynamically” update the scaled image so as to save the user from having to refresh or re-scale the underlying image, each time it is altered.
Thus, there is a need for a better way to scale images.
REFERENCES:
patent: 4546349 (1985-10-01), Prohofsky et al.
patent: 5053886 (1991-10-01), Nakajima
patent: 5638501 (1997-06-01), Gough et al.
patent: 5850232 (1998-12-01), Engstrom et al.
patent: 5949432 (1999-09-01), Gough et al.
patent: 6154600 (2000-11-01), Newman et al.
patent: 6184906 (2001-02-01), Wang et al.
patent: 6388668 (2002-05-01), Elliott
patent: 6501441 (2002-12-01), Ludtke
Patent Abstract of Japan, vol. 010, No. 325 (E-451), Nov. 6, 1986.
J.D. Foley, et al.,Computer Graphics: Principles and Practice;1996, Addison-Wesley Publishing Company, Inc., Reading, Mass., USA, pp. 179-184.
Nguyen Cao (Kevin)
Trop Pruner & Hu P.C.
LandOfFree
Scaling images does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scaling images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scaling images will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3232785