Efficient use of trusted third parties for additional content-sharing security
US7742697B2 · kind B2 · utility
24Cited by
24References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 2006 |
| Grant date | Jun 22, 2010 |
| Priority date | — |
| Expiry date | Jun 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/0773
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Network elements are identified as being connected to optical nodes by instructing two network elements in a spectrum group of the CMTS to transmit at frequencies f1 and f2, respectively. Frequencies f1 and f2 are selected such that they produce intermodulation distortions (intermods) in the laser transmitter at f3 when combined. If intermods are produced which exceed a predetermined threshold, then the two network elements are determined to be on the same node. If the total power of the signal by the laser transmitter exceeds an impact threshold, then the test is stopped and new network elements are selected for testing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.