Optical safety and connections discovery
US10397091B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2018 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Sep 17, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q11/0066
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
At a first optical node of an optical communications system, during a signal initialization phase, a first optical pattern is received that includes a prefix indicating a beginning of a signal, a first word, and a first working signal for verifying stability of a connection between the first optical node and a second optical node of the optical communications system. A second optical pattern is transmitted that includes the prefix, a second word different from the first word, and the first working signal. A third optical pattern including the prefix, the first word, and a second working signal is received. Based on determining that a duration of the second working signal is greater than a duration of the first working signal plus a predetermined time, the first optical node determines that the second optical node is an adjacent node of the first optical node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.