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:
Aug. 11, 2026
Filed:
May. 08, 2021
Microsoft Technology Licensing, Llc, Redmond, WA (US);
Yang Cui, Beijing, CN;
Ke Wang, Beijing, CN;
Lei He, Beijing, CN;
Frank Kao-Ping Soong, Beijing, CN;
Microsoft Technology Licensing, LLC, Redmond, WA (US);
Abstract
Solutions for authenticating digital audio include: generating a first band-limited watermark using a first key, generating a second band-limited watermark using a second key, wherein the bandwidth of the second watermark does not overlap with the bandwidth of the first watermark; and embedding the first watermark and the second watermark into a segment of the digital audio file. Solutions also include determining a first watermark score of a segment of the digital audio file for the first watermark using the first key; determining a second watermark score of the segment of the digital audio file for the second watermark using the second key; based on at least the first watermark score and the second watermark score, determining a probability that the digital audio file is watermarked; and generating a report indicating whether the digital audio file is watermarked. In some examples, solutions may also embed and decode messages.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile