US 12,231,724 B2
Compressed timestamp in a videostream
Jan Svensson, Kungälv (SE)
Assigned to VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed by VOLVO TRUCK CORPORATION, Gothenburg (SE)
Filed on Jan. 27, 2023, as Appl. No. 18/160,654.
Claims priority of provisional application 63/329,741, filed on Apr. 11, 2022.
Prior Publication US 2023/0328312 A1, Oct. 12, 2023
Int. Cl. H04N 21/4402 (2011.01); H04N 21/236 (2011.01); H04N 21/434 (2011.01); H04N 21/44 (2011.01)
CPC H04N 21/4402 (2013.01) [H04N 21/23614 (2013.01); H04N 21/4348 (2013.01); H04N 21/44008 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A method, comprising:
decompressing, via at least one processor of a computer system, a compressed videostream comprising a compressed graphical timestamp, thereby resulting in a decompressed videostream comprising a decompressed graphical timestamp, the compressed graphical timestamp and the decompressed graphical timestamp associated with an insert time;
rendering, via the at least one processor, the decompressed videostream, resulting in a rendered videostream comprising a rendered graphical timestamp;
extracting, via the at least one processor, the rendered graphical timestamp from the rendered videostream at an extract time;
determining the insert time of the rendered graphical timestamp using a lookup table; and
determining, via the at least one processor, whether a difference between the insert time of the rendered graphical timestamp and the extract time exceeds a predetermined threshold.