US 11,716,502 B2
Methods and apparatus to identify media based on watermarks across different audio streams and/or different watermarking techniques
Justin Fahnestock, Tampa, FL (US); Ronan Heffernan, Wesley Chapel, FL (US); Muhammad Amir, Palm Harbor, FL (US); Wes Kercher, Tampa, FL (US); Scott Barraclough, New Port Richey, FL (US); and John Kistenmacher, Brunswick, ME (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 May 9, 2022, as Appl. No. 17/739,524.
Application 17/739,524 is a continuation of application No. 16/907,700, filed on Jun. 22, 2020, granted, now 11,330,328.
Application 16/907,700 is a continuation of application No. 15/994,383, filed on May 31, 2018, granted, now 10,694,243, issued on Jun. 23, 2020.
Prior Publication US 2022/0264175 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 21/439 (2011.01); H04N 21/44 (2011.01); H04N 21/83 (2011.01); H04N 21/442 (2011.01); G10L 19/018 (2013.01)
CPC H04N 21/4394 (2013.01) [H04N 21/44008 (2013.01); H04N 21/44222 (2013.01); H04N 21/44236 (2013.01); H04N 21/83 (2013.01); G10L 19/018 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one memory;
instructions; and
processor circuitry to execute the instructions to:
detect a first watermark embedded in an audio stream associated with media, the first watermark embedded and detected in the audio stream based on a first watermarking technique;
detect a second watermark embedded in the audio stream, the second watermark embedded and detected in the audio stream based on a second watermarking technique different than the first watermarking technique;
assign the first watermark to a first monitoring track and to a second monitoring track, the first monitoring track limited to watermarks embedded in the audio stream based on the first watermarking technique, the second monitoring track limited to watermarks embedded in the audio stream based on any of the first or second watermarking techniques;
group the first and second watermarks to form a media detection event when the second watermark is assigned to the second monitoring track; and
cause transmission of the media detection event to a data collection facility.