Low power, variable precision DDA for 3D graphics applications

Details Low power, variable precision DDA for 3D graphics applications Low power, variable precision DDA for 3D graphics applications

2005-09-20

2005-09-20

Hjerpe, Richard (Department: 2672)

Computer graphics processing and selective visual display system

Computer graphics processing

Attributes

C345S428000, C345S626000, C708S102000

Reexamination Certificate

active

06947056

ABSTRACT:
An apparatus generally having a register, an adder circuit and a mask circuit is disclosed. The register may be configured to replace a current value with a new value in response to a clock value. The adder circuit may be configured to generate the new value by adding the current value to a delta value. The mask circuit may be configured to mask at least one value among the delta value, the new value and the clock value in response to a mask value having a plurality of bits.

REFERENCES:
patent: 4821208 (1989-04-01), Ryan et al.
patent: 5923577 (1999-07-01), Wong et al.
patent: 2003/0132940 (2003-07-01), Yamagata et al.
patent: 2003/0212726 (2003-11-01), Luick
Hao, Xuejun and Varshney, Amitabh: “Variable-Precision Rendering” Mar. 2001, ACM Press, Proceedings of the 2001 symposium on Interactive 3D graphics, pp. 149-158.

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