Method for testing a digital data transmission line between two modems and a device for the application of said method
US4351059A · kind A · utility
40Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1980 |
| Grant date | Sep 21, 1982 |
| Priority date | — |
| Expiry date | Sep 16, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/241
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for testing a digital data transmission line connected between two modems, including the steps of transmitting a test message from the first modem to the second modem, comparing the received message with the standard test message to determine errors, transmitting a test message back to the first modem along with the error message determined from comparing the received test message with the standard test message at the first modem. The error signal transmitted to the first modem and the error detected there is interpreted to determine the error in the transmission.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.