ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,489,925, issued on Dec. 2, was assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. (Munich).

"Concept for trustworthiness check of video data streams" was invented by Jonathan Pfaff (Berlin), Tobias Hinz (Berlin), Karsten Suehring (Berlin), Heiko Schwarz (Berlin), Detlev Marpe (Berlin) and Thomas Wiegand (Berlin).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for checking a video data stream having a video encoded thereinto on trustworthiness comprises: subjecting a predetermined portion of the video data stream, or data derived therefrom, to a hash function to obtain a hash value; deriving a digital signature from t...