ALEXANDRIA, Va., July 15 -- United States Patent no. 12,664,323, issued on June 23, was assigned to Microsemi SOC Corp. (Chandler, Ariz.).
"Tamper detector based on power network electrical characteristic" was invented by Gerald Richard Newell (Tracy, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and systems for tamper detection based on power network electrical characteristic by storing a reference electrical signature of a power distribution network comprising the integrated circuit, generating in the integrated circuit a current stimulus waveform by sigma-delta based noise shaping, and providing the waveform to the power distribution network comprising the integrated circuit, sampling the ...