Enhancing a watermark signal extracted from an output signal of a watermarking encoder
US8768710B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 2013 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | Dec 31, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/018
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device for enhancing a watermark signal extracted from an output signal of a watermarking encoder including an input signal portion corresponding to an input signal to the watermarking encoder and a watermark signal portion corresponding to the watermark signal includes an input configured to receive the input signal and the watermark signal, an enhancement module operatively connected to the input and configured to a) enhance the watermark signal at least in part by adjusting a gain of the watermark signal to obtain an enhanced watermark signal, and b) generate an enhanced output signal including an input signal portion corresponding to the input signal and an enhanced watermark signal portion corresponding to the enhanced watermark signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.