MUMBAI, India, Aug. 10 -- Intellectual Property India has published a patent application (202614003839 A) filed by Fraunhofer-Gesellschaft Zur Frderung Der Angewandten Forschung E. V. on January 14, 2026, for Substream Dependencies In A Trustworthiness Check Of A Video Data Stream.
Inventors include Pfaff, Jonathan; Hinz, Tobias; Shring, Karsten; Schwarz, Heiko; Skupin, Robert; Snchez De La Fuente, Yago; Hellge, Cornelius; Schierl, Thomas; Marpe, Detlev; and Wiegand, Thomas.
The application for the patent was published on July 31, 2026, under issue no. 31/2026.
Abstract: An apparatus for checking a video data stream on trustworthiness derives a number of substreams of a predetermine temporal segment out of a sequence of temporal segments, in units of which the video data stream is checkable on trustworthiness, and further derives dependency information, which indicates, for the substream, whether the substream is dependent or whether the substream depends on one or more reference substreams. The trustworthiness check is performed by forming a verification stream based on a hash value, which is obtained from a portion of the substream to be verified and based on a reference hash value. If the substream is independent, a hash value derived for a corresponding substream of the preceding temporal segment is used as the reference hash value.
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