System and method for the transport of backwards information between simplex devices
US7072361B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2002 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Nov 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/1611
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for transporting backward information in a digital wrapper format network of connected simplex devices. The system comprises a first simplex processor receiving downstream messages with overhead bytes. The first simplex processor selectively replaces overhead bytes with calculated overhead bytes and supplies the calculated overhead bytes. The system further comprises a buffer receiving the calculated overhead bytes from the first simplex processor and supplying the calculated overhead bytes. A second simplex processor accepts the calculated overhead bytes from the buffer and supplies an upstream message including the calculated overhead bytes. The first simplex processor receives messages in a frame format with an overhead section, drops the overhead section, and selectively reads backward message monitor bytes in the dropped overhead section to determine if upstream communication nodes are receiving transmitted messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.