Juan N Pineda

US Patent:

57012636, Dec 23, 1997

Filed:

Aug 28, 1995

Appl. No.:

8/520044

Inventors:

Juan Pineda - San Francisco CA

Assignee:

Hyundai Electronics America - San Jose CA

International Classification:

G06F 1714

US Classification:

364725

Abstract:

A fast and efficient implementation of the inverse discrete cosine transform (IDCT). The disclosed IDCT processor achieves a good balance between efficient VLSI implementation and number of needed arithmetic operations and is thus particularly useful in real-time speech and video decompression applications. A standard IDCT computation is modified by factoring an IDCT formula into two parts: a prescaling of each input value followed by a multiplication with a matrix specially chosen so that the product will represent the IDCT of the input data. The premultiply constants are chosen so that the specially chosen matrix has a limited number of distinct values. The VLSI implementation of the matrix multiplication is thus greatly simplified.

Address:

2900 Dorchester Ln, Hollywood, FL 33026

VIN:

3VWPG31C88M527312

Make:

VOLKSWAGEN

Model:

NEW BEETLE

Year:

2008