Optimized digital watermarking functions for streaming data
US7957552B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2009 |
| Grant date | Jun 7, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2201/0065
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A digital watermark detector comprises a memory buffer for receiving an incoming stream of data. The detector includes a registration module for determining registration of embedded data in blocks of the incoming stream of data, and logic for re-using the registration for subsequent blocks of the incoming stream of data to detect machine readable signals. Another digital watermark detector comprises a message reader for extracting message estimates from blocks of media signal data and a decoder for combining the extracted message estimates and decoding a message from the combined message elements. Another digital watermark detector comprises a memory buffer and pipelined watermark processor segments. The segments each perform a different watermark detector operation. These segments concurrently operate on different data segments of the block of data in a processing pipeline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.