Data carriage in encoded and pre-encoded audio bitstreams
US9824694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2015 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Nov 17, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for a machine or group of machines to carry watermark data in an encoded audio data frame of an audio signal includes receiving the encoded audio data frame having encoded therein a portion of the audio signal. The encoded audio data frame includes a plurality of data blocks, wherein the plurality of data blocks includes, a synchronization information block, at least one encoded data block, and an error check block. The method further includes receiving modified watermark data as modified based on a masking threshold analysis of the audio signal and transforming the encoded audio data frame into a modified encoded audio data frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.