U.S. patents available from 1976 to present.
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Computer graphics system and method employing frame buffer having subpixel field, display fields and a control field for relating display fields to the subpixel field

Patent 5757375 Issued on May 26, 1998. Estimated Expiration Date: Icon_subject July 25, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

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Method for scan converting shaded triangular polygons
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Issued on: 08/30/1994
Inventor: Akeley

Method for display rendering by determining the coverage of pixels in polygons
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Inventor: Akeley

Apparatus and method of encoding control data in a computer graphics system
Patent #: 5388205
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Video graphics controller with selectable pattern features for line draws
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Issued on: 05/16/1995
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Inventor

Application

No. 506704 filed on 07/25/1995

US Classes:

345/613, Subpixel processing345/545Frame buffer

Examiners

Primary: Feild, Joseph H.
Assistant: Buchel, Rudolph

Attorney, Agent or Firm

International Class

G09G 005/36

Foreign Application Priority Data

1994-08-11 JP

Abstract

A computer graphics system is disclosed for generating pixel data corresponding to a plurality of pixels to be displayed. The computer graphics system includes a frame buffer having entries associated with each of the pixels. Each of the entries includes a subpixel data field, a plurality of display data fields, and a control field. For each entry the sub-pixel data field stores data corresponding to a set of sub-pixels, at least one of the plurality of display data fields stores data determined by filtering of the data of the sub-pixel data field of the entry, and the control field stores data representing a relationship between the sub-pixel data field of the entry and each of the plurality of display data fields of the entry.

Other References

  • K. Akeley, "Reality Engine Graphics", Computer Graphics Proceedings Annual Conference Series, 1993 pp. 109-11
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