Two-dimensional inverse discrete cosine transform processor

Details Two-dimensional inverse discrete cosine transform processor Two-dimensional inverse discrete cosine transform processor

1995-04-28

1997-06-03

Mai, Tan V.

Boots, shoes, and leggings

382248, G06F 1714

Patent

active

056361521

ABSTRACT:
A two-dimensional inverse discrete cosine transform (2-D IDCT) processor comprises cosine angle index generators, pipelined multipliers and a symmetrical kernel. The 2-D IDCT processor of the invention has a five-stage pipelined structure for carrying out a coefficient-by-coefficient 2-D IDCT algorithm and can be operated at a clock rate of more than 50 MHz to achieve a pixel rate of about 400 MHz.

REFERENCES:
patent: 4829465 (1989-05-01), Knauer et al.
patent: 5291429 (1994-03-01), Iwama et al.
patent: 5301136 (1994-04-01), McMillan, Jr. et al.
patent: 5471412 (1995-11-01), Shyu

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