ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,406,000, issued on Sept. 2, was assigned to Roku Inc. (San Jose, Calif.).
"Video fingerprinting" was invented by Wilson Harron (Berkeley, Calif.) and Matthew James Wilkinson (Emeryville, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A query fingerprint of a set of frames of video content captured at a client device may be generated. Multiple patches of the set of frames of video content may be selected and a value calculated for each of the selected multiple patches. The value for each patch may be indicated as a single bit along with an additional 1-bit value to indicate whether the patch value is weak. A database of known reference fingerprint...