Microprocessor-based monitoring or protection device comprising

Details Microprocessor-based monitoring or protection device comprising Microprocessor-based monitoring or protection device comprising

1991-10-08

1994-05-24

Beausoliel, Jr., Robert W.

Excavating

371 212, G01R 3128, G06F 1100

Patent

active

053155998

ABSTRACT:
A certain number of high bits of each sample (12 bits) supplied by an analog-to-digital converter is used as the address of a comparison zone of a RAM associated with the microprocessor of the device. In this comparison zone the result of comparison of this sample with a predetermined number of thresholds has previously been recorded. The sample (12 bits) and associated comparison result (4 bits) are stored in a storage zone of the RAM for subsequent processing by the microprocessor. This simultaneous acquisition of a sample and of the prerecorded result of comparison of this sample with the thresholds minimizes the time devoted by the microprocessor to data acquisition.

REFERENCES:
patent: 4319355 (1982-03-01), Mollier
patent: 4760575 (1988-07-01), Watanabe
patent: 4974226 (1990-11-01), Fujimori
Patent Abstracts of Japan, vol. 8, No. 139 (E-253)(1576), Jun. 28, 1984.
IBM Technical Disclosure Bulletin, vol. 30, No. 5, Nov. 1987.
IBM Technical Disclosure Bulletin, vol. 31, No. 8, Jan. 1989.

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