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:
Sep. 13, 2022

Filed:

Aug. 05, 2020
Applicant:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Inventors:

Rajeeva Gopala Krishna, Bengaluru, IN;

Shihab T. A. Muhammed, Ernakulam, IN;

Assignee:

Hamilton Sundstrand Corporation, Charlotte, NC (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/07 (2006.01); G06F 9/4401 (2018.01); H03K 3/037 (2006.01); H03K 21/08 (2006.01); H03K 5/00 (2006.01); H03K 5/19 (2006.01);
U.S. Cl.
CPC ...
G06F 11/0757 (2013.01); G06F 9/4403 (2013.01); H03K 3/037 (2013.01); H03K 5/00 (2013.01); H03K 5/19 (2013.01); H03K 21/08 (2013.01); H03K 2005/00078 (2013.01);
Abstract

A windowed watchdog circuit system can include a slow timer module configured to receive watchdog strobe signals from a processor and to determine whether a gap time between watchdog strobe signals is longer than a slow threshold time to output a slow threshold state when the gap time is longer than the slow threshold. The windowed watchdog circuit system can include a fast timer system configured to receive the watchdog strobe signals from the processor and to determine whether the gap time between watchdog strobe signals is shorter than a fast threshold time to output a fast threshold state when the gap time is shorted than the fast threshold. The windowed watchdog circuit system can be configured to output a reset state to reset the processor when any of the slow timer module and the fast timer system are outputting the slow threshold state or the fast threshold state, respectively.


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