US Patent Issued to Dolby Laboratories Licensing on June 24 for "Audio watermark to indicate post-processing" (Chinese, American Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,814, issued on June 24, was assigned to Dolby Laboratories Licensing Corp. (San Francisco).

"Audio watermark to indicate post-processing" was invented by C. Phillip Brown (Castro Valley, Calif.), Brett G. Crockett (Brisbane, Calif.), Baoli Yan (Beijing) and Qi Huang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "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 transi...