Highly parallel discrete cosine transform engine

Details Highly parallel discrete cosine transform engine Highly parallel discrete cosine transform engine

1993-10-29

1995-07-18

Envall, Jr., Roy N.

Boots, shoes, and leggings

G06F 738

Patent

active

054348080

ABSTRACT:
A discrete cosine transform engine which receives an input matrix of data and provides a transformed matrix of data, the input matrix and the output matrix each having a plurality of row locations and a plurality of column locations. The engine includes a plurality of input accumulators, a plurality of multiplication circuits and a plurality of output accumulators. The plurality of accumulators accumulate data from the input matrix of data in parallel to provide a plurality of transform coefficient outputs. The plurality of multiplication circuits receive the plurality of coefficient outputs and multiply the coefficient outputs by transform constants to provide a plurality of transform products. Each output accumulator receives the transform products and accumulates the products to provide the transformed matrix of data.

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IEEE Micro Chips, Systems, Software, and Applications, "Guest Editors' Introduction Processing Hardware for Real-Time Video Coding ", Oct., 1992, pp. 9-32.

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