The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 16, 1986

Filed:

Mar. 12, 1986
Applicant:
Inventor:

Wolfgang Kosak, Moglingen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; H03K / ;
U.S. Cl.
CPC ...
307265 ; 307273 ; 307362 ; 307592 ; 328 34 ; 328 59 ; 328111 ; 36443111 ; 364184 ; 371 12 ;
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.


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