Digital signal transmission system having monitor equipment
US5369633A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1992 |
| Grant date | Nov 29, 1994 |
| Priority date | — |
| Expiry date | May 27, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/04
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A digital signal transmission system having monitor equipment including a serial/parallel (S/P) converter and a parallel/serial (P/S) converter both. The S/P converter is checked by the aid of a first monitor signal generating circuit that parallel distributes a pass pattern signal given at the input side of the S/P converter to respective individual channel lines for achieving a pass pattern check. The P/S converter is checked with the aid of a second monitor signal generating circuit that receives respective pass pattern signals given, at the input side of the P/S converter, to a multiplexed channel line sequentially at every frame to achieve a pass pattern check.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.