Multi-mode audio recognition and auxiliary data encoding and decoding
Ravi K. Sharma, Portland, OR (US); Brett A. Bradley, Portland, OR (US); Yang Bai, Beaverton, OR (US); Shankar Thagadur Shivappa, San Diego, CA (US); Ajith Kamath, Beaverton, OR (US); Aparna Gurijala, Port Coquilam (CN); Tomas Filler, Tigard, OR (US); and David A. Cushman, McMinnville, OR (US)
Assigned to Digimarc Corporation, Beaverton, OR (US)
Filed by Digimarc Corporation, Beaverton, OR (US)
Filed on Nov. 22, 2021, as Appl. No. 17/532,884.
Application 17/532,884 is a continuation of application No. 16/751,629, filed on Jan. 24, 2020, granted, now 11,183,198.
Application 16/751,629 is a continuation of application No. 15/848,339, filed on Dec. 20, 2017, granted, now 10,546,590, issued on Jan. 28, 2020.
Application 15/848,339 is a continuation of application No. 15/090,279, filed on Apr. 4, 2016, granted, now 9,852,736, issued on Dec. 26, 2017.
Application 15/090,279 is a continuation of application No. 14/054,492, filed on Oct. 15, 2013, granted, now 9,305,559, issued on Apr. 5, 2016.
Application 14/054,492 is a continuation in part of application No. 13/841,727, filed on Mar. 15, 2013, granted, now 9,401,153, issued on Jul. 26, 2016.
Claims priority of provisional application 61/714,019, filed on Oct. 15, 2012.
Prior Publication US 2022/0335959 A1, Oct. 20, 2022
1. An apparatus for embedding a digital watermark in an audio signal, the apparatus comprising:
memory for storing an audio signal;
means for identifying an embedding location within the audio signal that does not have sufficient signal in which to embed a digital watermark signal element;
means for boosting the audio signal at the embedding location; and
means for embedding the digital watermark signal element at the embedding location, using boosting by said means for boosting to mask audibility of a change in the audio signal made to embed the digital watermark signal.
