Method for remote measurement of echo path delay
US7251213B2 · kind B2 · utility
3Cited by
40References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2002 |
| Grant date | Jul 31, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2012/6491
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of measuring echo path delay in a circuit having echo cancellers after enabling an echo signal to pass through the echo cancellers. The known time for a given echo canceller to disable is subtracted from the overall test signal duration. This quantity can be subtracted from the overall echo duration to compute the echo path delay.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.