Information processor having information correcting function

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G06F 1300

Patent

active

045702225

ABSTRACT:
The invention selectively designates a specific portion of information which is stored in a memory to identify information which is to be corrected. It further enables a correction of only the suitably designated portion. The read out of information having the corrected information is set in a state which is ready for use. Accordingly, it is not necessary to use a bit addressing circuit, as used in the prior art, this simplifying both the circuit design and the wiring. It is also possible to designate more than one arbitrary item of information as portions which are to be corrected and then to correct all designated information simultaneously. Thus, the read out information is corrected at a high speed. In addition, the number of information items which are capable of correction is not limited by unnecessary bit addressing. This enables an increase in the number of memory elements, and makes the system quite useful as a control device for CRT display systems.

REFERENCES:
patent: 2552629 (1951-05-01), Hamming
patent: 3402390 (1968-09-01), Tsimbidis
patent: 4016544 (1977-04-01), Morita et al.
patent: 4149184 (1979-04-01), Giddings et al.
patent: 4203102 (1980-05-01), Hydes
patent: 4290063 (1981-09-01), Traster
patent: 4296494 (1981-10-01), Ishikawa et al.
Bell System Technical Journal, R. W. Hamming, Apr. 1950, pp. 147-160.

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