US 11,877,039 B2
Methods and apparatus to extend a timestamp range supported by a watermark
Alexander Topchy, New Port Richey, FL (US); and Vladimir Kuznetsov, Ellicott City, MD (US)
Assigned to The Nielsen Company (US), LLC, New York, NY (US)
Filed by The Nielsen Company (US), LLC, New York, NY (US)
Filed on Dec. 30, 2022, as Appl. No. 18/091,978.
Application 16/596,255 is a division of application No. 16/025,805, filed on Jul. 2, 2018, granted, now 10,448,123, issued on Oct. 15, 2019.
Application 18/091,978 is a continuation of application No. 17/332,636, filed on May 27, 2021, granted, now 11,546,674.
Application 17/332,636 is a continuation of application No. 16/596,255, filed on Oct. 8, 2019, granted, now 11,025,995, issued on Jun. 1, 2021.
Prior Publication US 2023/0139142 A1, May 4, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/8358 (2011.01); H04N 21/24 (2011.01); H04N 21/2389 (2011.01); H04N 21/8352 (2011.01)
CPC H04N 21/8358 (2013.01) [H04N 21/23892 (2013.01); H04N 21/2407 (2013.01); H04N 21/8352 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A computing system comprising:
a network interface;
at least one processor; and
memory having stored therein machine readable instructions that, when executed by the at least one processor, causing the computing system to:
select which one of a plurality of timestamp cycles is to be represented by a timestamp of a watermark, the watermark including a set of timestamp symbols to represent the watermark, the watermark also including a first subset of data symbols and a second subset of data symbols, respective ones of the second subset of data symbols to be related to corresponding ones of the first subset of data symbols based on another data symbol not included in the first and second subsets of data symbols;
modify the first subset of data symbols of the watermark based on another timestamp symbol not included in the set of timestamp symbols of the timestamp, the another timestamp symbol to identify the one of the plurality of timestamp cycles to be represented by the timestamp of the watermark; and
embed the watermark in a piece of media.