US RE50,577 E1
Watermark based content recognition improvements
Rade Petrovic, San Diego, CA (US); and Joseph M. Winograd, San Diego, CA (US)
Filed by Verance Corporation, San Diego, CA (US)
Filed on Nov. 23, 2022, as Appl. No. 17/992,934.
Application 17/992,934 is a reissue of application No. 16/378,378, filed on Apr. 8, 2019, granted, now 10,848,821, issued on Nov. 24, 2020.
Int. Cl. H04N 21/44 (2011.01); G06F 21/16 (2013.01); G06T 1/00 (2006.01); H04N 21/8352 (2011.01); H04N 21/8358 (2011.01); H04N 21/845 (2011.01)
CPC H04N 21/44008 (2013.01) [G06F 21/16 (2013.01); G06T 1/005 (2013.01); H04N 21/8352 (2013.01); H04N 21/8358 (2013.01); H04N 21/8456 (2013.01); G06T 2201/0065 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method for embedding watermarks in multimedia content comprising:
generating a watermark registry database, which includes links between watermark codes and content metadata;
embedding content with a succession of watermarks using a watermark embedded [ embedder ] that is implemented at least partly in electronic circuitry, each embedded watermark including a payload, wherein the embedded watermarks have a flexible payload format that allows for [ alternative ] watermark payloads having different sizes;
wherein the embedding including using a [ one or more ] predetermined embedding stego key [ keys ] to embed each watermark, the [ one or more ] embedding stego key [ keys ] identifying potential locations for watermark embedding and identifying particular characteristics of the watermarks, wherein the same [ one or more ] embedding stego key [ keys ] is [ are ] used to embed each of the succession of watermarks; and
storing a record of the embedded watermark payload in the watermark registry database, wherein the database links some of the embedded watermarks to at least one alternative payload with a different payload size.