The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 2025
Filed:
May. 06, 2021
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
C. Phillip Brown, Castro Valley, CA (US);
Brett G. Crockett, Brisbane, CA (US);
Baoli Yan, Beijing, CN;
Qi Huang, Beijing, CN;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
A system for using an audio watermark to avoid double processing. The decoder inserts the audio watermark during a transient in the audio signal. This avoids the drawbacks of using out-of-band control signals or metadata. The decoder performs detecting a transient in a first audio signal, transforming a portion related to the transient into the frequency domain to compare a first band of the frequency domain data and a second band of the frequency domain data, when the first band is uncorrelated with the second band, the decoder performs processing on the first audio data to generate a second audio data, when the first band is correlated, the first audio data is used as the second audio data without performing any processing.