Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1986-03-12
1986-12-16
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307273, 307362, 307592, 328 34, 328 59, 328111, 36443111, 364184, 371 12, F02D 3100, H03K 522
Patent
active
046299076
ABSTRACT:
A device is proposed for monitoring the function of electronic equipment, in particular equipment controlled by microprocessors. In such devices, the regular occurrence of control pulses is monitored in that a capacitor which can be charged or discharged in accordance with the control pulses is connected to a threshold stage, which in the case of a persistent absence of control pulses generates a signal having a reset phase of predetermined duration and an active phase also of predetermined duration for the equipment in a periodic sequence. The durations, of the reset phase and the active phase are freely selectable independently of one another, the duration of the active phase preferably being substantially shorter than that of the reset phase.
REFERENCES:
patent: 3315246 (1967-04-01), Huffman et al.
patent: 4245315 (1981-01-01), Barman et al.
patent: 4414623 (1983-11-01), Davis et al.
patent: 4429366 (1984-01-01), Kennon
patent: 4434403 (1984-02-01), Chang
patent: 4541050 (1985-09-01), Honda et al.
Greigg Edwin E.
Miller Stanley D.
Robert & Bosch GmbH
Roseen Richard
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