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:
Jan. 17, 2006
Filed:
Feb. 12, 1999
Changsheng Xu, Singapore, SG;
Jiankang Wu, Singapore, SG;
Qibin Sun, Singapore, SG;
Kent Ridge Digital Labs, Singapore, SG;
Abstract
A method, an apparatus, and a computer program product for digital audio watermarking of wavetable (WT) format audio, including downloadable sounds (DLS) (), are disclosed. Correspondingly, a method, an apparatus, and a computer program product for extracting watermarks () from a digital audio watermarked WT audio () are disclosed. In particular, a digital audio watermark () is embedded () in both articulation parameters () and sample data () of a DLS (). A finite automaton module () is used to implement adaptive coding () of the sample data (). Virtual parameters () are generated for information hiding () applied to the articulation parameters (). Optionally, playback of the WT () can be limited by an embedded control signal. Brief overviews of MIDI and DLS are provided.