Excavating
Patent
1988-08-15
1990-05-01
Atkinson, Charles E.
Excavating
371 6, 371 36, G06F 1100
Patent
active
049224930
ABSTRACT:
An overload circuit detects input signals that are too high or too low in amplitude and generates a holding signal of a predetermined duration. The holding signal is applied to a data selector which normally passes the input signal to a shift register/majority gate but switches to supply the output of the majority gate to the shift register when a holding signal is present. Thus, the output is maintained constant during the predetermined durations when a holding singnal is present.
REFERENCES:
patent: 3386079 (1968-05-01), Wiggins
patent: 3568147 (1971-03-01), Gilson
patent: 3688039 (1972-08-01), Ishiguro
patent: 3697776 (1972-10-01), Matejka
patent: 4224689 (1980-09-01), Sundberg
patent: 4519001 (1985-05-01), Morrison
patent: 4639920 (1987-01-01), Kaneko
patent: 4686676 (1987-08-01), McPherson
Atkinson Charles E.
Meyer Jonathan P.
Motorola Inc.
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