Digital data processing system with facility for changing indivi

Details Digital data processing system with facility for changing indivi Digital data processing system with facility for changing indivi

1993-02-09

1996-07-30

Tung, Kee Mei

Static information storage and retrieval

Magnetic bubbles

Guide structure

395432, 395401, 36518902, 36523002, G06F 1200

Patent

active

055420630

ABSTRACT:
A system for changing bits of a byte unit individually comprises a data processing unit including specifying circuitry for specifying bit selection information indicative of a predetermined bit in the byte unit, new-data generating circuitry for outputting new data for the predetermined bit, bit changing circuitry including a plurality of data holding circuits respectively for holding individual bits of the byte, gate circuitry receiving, as inputs, the new data and all bits of the byte and, as an enabling input, the bit selection information and transmitting the new data selectively to one of the data holding circuits.

REFERENCES:
patent: 3905024 (1975-09-01), Boucek et al.
patent: 4339804 (1982-07-01), Davison et al.
patent: 4570222 (1986-02-01), Oguchi et al.
patent: 4912658 (1990-03-01), Sfarti et al.
Hofacker, Winifred, ed. Microcomputer Hardware Handbook, Mar. 1982, pp. 619-624, 143.

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