Patent · US Active

Forward discrete cosine transform engine

US7792891B2 · kind B2 · utility

2Cited by

15References

25Claims

0Family size

Assignee

NVIDIA Corporation · US

Inventors

Leonardo Vainsencher · San Jose, US
Cahide Kiris · Palo Alto, US

Key dates

Filing date	Dec 11, 2002
Grant date	Sep 7, 2010
Priority date	—
Expiry date	Mar 11, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG06T9/007
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Systems and methods are disclosed to perform fast discrete cosine transform (DCT) by computing the DCT in five stages using three coefficients, and scaling the outputs using a plurality of scaling coefficients.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.