Two-dimensional inverse discrete cosine transform circuit and mi

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

1998-01-08

2000-09-12

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

708401, G06F 1714

Patent

active

06119140&

ABSTRACT:
An 8.times.8 two-dimensional discrete inverse cosine transform circuit includes two row arithmetic sections each of which implement an 8-point one-dimensional inverse discrete cosine transform in a row direction, a replacement section which replaces the arithmetic results of the row arithmetic sections with replacement data, and two column arithmetic sections each of which receive parts of the replacement data from the replacement section and implement an 8-point one-dimensional inverse discrete cosine transform in a column direction. Each of the arithmetic sections include a 16-bit four parallel adder and subtracter and a 16-bit four parallel multiply-accumulate unit with polarity symmetric rounding function.

REFERENCES:
patent: 5428567 (1995-06-01), Horvath et al.
patent: 5590066 (1996-12-01), Ohki
patent: 5768167 (1998-06-01), Kuroda
patent: 5781239 (1998-07-01), Mattela et al.
patent: 5835391 (1998-11-01), Cho
patent: 5905660 (1999-05-01), Choi et al.
patent: 5917736 (1999-06-01), Murata et al.
Ide et al., "Stidy of IDCT Algorithms by 16-bit Integer Operation" D-225 pp. 227 (1996).
Mochizuki et al., "Inverse DCT calculation on VISP-LSI" A-192 (1990).
Arai et al., "A Fast DCT-SQ Scheme for Images" The IEICE 71:1095-1097.

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