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:
Jul. 14, 2026

Filed:

Mar. 30, 2023
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Pawel Owczarczyk, Highland, NY (US);

Mark Cichanowski, Hutto, TX (US);

Michael Greene, Austin, TX (US);

Michael Romain, Beacon, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01); G01R 31/3187 (2006.01); G01R 31/3193 (2006.01); H03K 3/03 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2851 (2013.01); G01R 31/3187 (2013.01); G01R 31/3193 (2013.01); H03K 3/0315 (2013.01);
Abstract

Configuring a fault-sensing ring oscillator circuit is disclosed. In a particular embodiment, a fault-sensing ring oscillator circuit includes a plurality of ring oscillators; an enable circuit configured to enable and disable the plurality of ring oscillators; an OR circuit including a plurality of inputs, wherein each input is coupled to a respective ring oscillator of the plurality of ring oscillators; and a first fault detection latch including a SET input coupled to a first output of the OR circuit and a RESET input coupled to the enable circuit, wherein the first fault detection latch indicates a stuck at fault condition when the plurality of ring oscillators are disabled by the enable circuit and at least one of the plurality of ring oscillators is active.


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