Boots – shoes – and leggings
Patent
1987-03-24
1988-12-13
Malzahn, David H.
Boots, shoes, and leggings
G06F 15332
Patent
active
047915986
ABSTRACT:
This processor is capable of real time processing of blocks of video pixel or other two-dimensional data to yield the two-dimensional Discrete Cosine Transform (DCT) thereof. The processor can be used as part of a video bandwidth or image compression system. The circuitry comprises a first one-dimensional DCT processor which simultaneously computes an entire row or column of vector inner products by using distributed arthmetic and using decimation-in-frequency to reduce the amount of memory capacity (ROM) required. Partial sums may also be used to further reduce ROM size. The one-dimensional transformed matrix from the first processor is stored in a transposition memory and the transpose of the stored matrix is applied to a second one-dimensional DCT processor of similar circuitry which computes the desired two-dimensional DCT of the input data matrix.
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Liou Ming-Lei
Sun Ming-Ting
Wu Lancelot
Bell Communications Research Inc.
Falk James W.
Gurey Stephen M.
Malzahn David H.
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