Signature-based program identification apparatus and methods for use with digital broadcast systems
US8255938B2 · kind B2 · utility
6Cited by
60References
69Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2005 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Nov 27, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H2201/90
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Signature-based program identification apparatus and methods for use with digital audio and/or video systems are disclosed. The disclosed systems and methods develop signatures of digital audio and/or video content from a digital data stream at two or more sites and compare the signatures to one another to identify the content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.