Diagnostic injection of transmission errors in fiber optic networks
US6233073A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1998 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Jul 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/077
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Disclosed are a subsystem and a method for diagnosing a fiber optic network, the fiber optic network comprising a fiber having an optic stream adhering to a defined protocol of the fiber optic network, and comprising a target for receiving and responding to the optic stream. The diagnosis comprises receiving the fiber optic stream and converting the fiber optic stream to an electrical input stream with a FOSA (fiber optic subassembly), and recognizing, from the electrical input stream, a selected event (e.g., frame or command) related to the optic stream defined protocol. Then, in response to the recognition of the selected event, recognizing a selected pattern of the electrical input stream, e.g., employing mask logic, and injecting, in response to the recognition of the selected pattern, a transmission error into the optic stream, and transmitting the optic stream with the injected transmission error to the target, employing a FOSA. A FIFO buffer is coupled to the first FOSA for buffering the electrical input stream, and the mask logic is coupled to the FIFO buffer for injecting the transmission error at a selected point in the optic stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.