Digital connection detection technique
US6504865B1 · kind B1 · utility
3Cited by
13References
58Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1999 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 24, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/4927
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A technique is described for reliably determining whether a direct digital connection exists between a transmitting server modem and a receiving client modem. Such a determination is an essential part of the training procedure for modems that conform to ITU-T Recommendation V.90 but is also applicable to other data communications configurations and equipment. In some configurations in accordance with the present invention, segments of a modem training signal, L1L2, are used to make the determination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.