Circuit for performing S-transform

Details Circuit for performing S-transform Circuit for performing S-transform

1989-05-30

1991-04-16

Malzahn, David H.

Boots, shoes, and leggings

358448, 364727, G06F 15332

Patent

active

050088483

ABSTRACT:
An improved circuit for performing the S-transform and inverse S-transform on digital images. Data is fed back so that only one stage of adder/subtracters is required. The circuit elements have little idle time, making for efficient VLSI implementation.

REFERENCES:
patent: 4134134 (1979-01-01), Lux
patent: 4190861 (1980-02-01), Lux
patent: 4621337 (1986-11-01), Cates et al.
patent: 4675836 (1987-06-01), Arnould
patent: 4831440 (1989-05-01), Borgers
patent: 4897881 (1990-01-01), Ledinh et al.
Carl et al., "A Hybrid Walsh Transform Computer", IEEE Trans. on Computers, vol. C-22, No. 7, Jul. 1973, pp. 669-672.
Fukinuki et al., "Intraframe Image Coding by Cascaded Hadamard Transforms", IEEE Trans. on Communications, vol. COM-21, No. 3, Mar. 1973, pp. 175-180.

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