Excavating
Patent
1991-06-17
1992-09-08
Beausoliel, Robert W.
Excavating
371 53, 371 66, G06F 1108
Patent
active
051464594
ABSTRACT:
A data collector, a handy terminal or similar portable electronic equipment with check-sum function, in which circuits for check-sum function are provided separately from the central processing unit, in order to reduce the time required for check-sum procedure.
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patent: 4698808 (1987-10-01), Ishii
patent: 4870607 (1989-09-01), Ishizuka
"Read-Only Array Data Checking", IBM TDB, vol. 28, No. 3, Aug. 1985 pp. 1163-1165.
Beausoliel Robert W.
Canon Kabushiki Kaisha
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