US Patent Issued to William Marsh Rice University on May 13 for "Automatic self checking and healing of physically unclonable functions" (Texas Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,301,737, issued on May 13, was assigned to William Marsh Rice University (Houston).

"Automatic self checking and healing of physically unclonable functions" was invented by Kaiyuan Yang (Houston) and Yan He (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and circuit for an Automatic Self Checking and Healing (ASCH) of Physically Unclonable Functions (PUFs), the method includes: controlling a skew input added to each PUF cell of a PUF array in a circuit with sub-mV resolution; healing a portion of unstable bits of each PUF cells locally; and performing a second self-checking on healed PUF cells to determine final PUF cells to discard. Th...