Two-dimensional inverse-discrete cosine transform circuit

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

1997-08-11

1999-06-29

Malzahn, David H.

Boots, shoes, and leggings

36472503, G06F 1714

Patent

active

059177365

ABSTRACT:
First to ninth determining units that receive input data of first to ninth tensor product calculating units are disposed. The first to ninth determining units determine whether or not the received data have non-zero data and supply the determined results to the relevant tensor product calculating units. When the first to ninth determining units have determined that all of the received data are zero data, the first to ninth tensor product calculating units do not perform tensor product calculations.

REFERENCES:
patent: 5387982 (1995-02-01), Kitaura et al.
patent: 5596517 (1997-01-01), Jones et al.
patent: 5724278 (1998-03-01), Ohgose et al.
patent: 5768167 (1998-06-01), Kuroda
Denshi Joho Tsushin Gakkai, Kiso/Kyokai Society Taikai Koen Ronbunshu (published Aug. 15, 1995), A-86, p. 88.
Ichiro Kuroda, "A Study on Fast 2D (I)DCT Algorithm", Information Technology Research Labs, NEC Corporation, Japan, pp. 1-3.
Ichiro Kuroda, "Processor Architecture Driven Algorithm Optimization for Fast 2D-DCT", Information Technology Research Labs., NEC Corporation, Japan, pp. 481-490.

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