Encryption topology for transporting multiple AV streams over a unified medium
US8976961B2 · kind B2 · utility
1Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2011 |
| Grant date | Mar 10, 2015 |
| Priority date | — |
| Expiry date | Sep 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4405
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system architecture allows for the transmission of multiple HDCP encrypted audio/video streams over a single unified cable to multiple receivers using a daisy chain topology. Each individual audio/video stream is first encrypted and then combined into a uniform stream, and the uniform stream is transmitted to each of the receivers. Each receiver contains a decryption engine that operates independently of the engines in the other receivers, therefore allowing each receiver to select to a unique channel and decrypt and display one of the audio/video streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.