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.
Patent No.:
Date of Patent:
Sep. 29, 2026
Filed:
Mar. 21, 2024
Cisco Technology, Inc., San Jose, CA (US);
Joel Richard Goergen, Soulsbyville, CA (US);
Emanuele Croci, Carate Brianza, IT;
Raghav N. Narasimhan, Fremont, CA (US);
Matthew C. Stroud, Allen, TX (US);
Kameron Rose Hurst, Sonora, CA (US);
Sean C. Pegado, Washington, DC (US);
George Allan Zimmerman, Manhattan Beach, CA (US);
Rajeshwari Gangapur, San Jose, CA (US);
CISCO TECHNOLOGY, INC., San Jose, CA (US);
Abstract
Techniques for detecting an impedance-based fault on a wire carrying power in a power delivery system. The techniques involve applying power to a wire of a power delivery system and applying onto the wire a chirp pulse comprising a sequence of waveforms of a plurality of frequencies. A signal is obtained from the wire. An impedance of the signal is analyzed at two or more frequencies of the plurality of frequencies with respect to a reference impedance to determine whether there is an indication of an impedance-based fault associated on the wire, such as a human touching the wire. The power to the wire is disconnected in response to determining an indication of the impedance-based fault.