Resources Contact Us Home
Method and system for testing during operation of an open ring optical network

Image Number 18 for United States Patent #7076163.

The method and system for testing during operation of an open ring network includes opening a ring of the network at the node. Traffic circulating on the ring is dropped in the node to a monitoring element prior to or at the opening of the ring in the node. At the monitoring element, a signal received from the ring is tested. During tested and while the ring is open, traffic continues to be communicated between each node on at least one of the ring or a second ring each connecting the nodes of the network.

  Recently Added Patents
High productivity single pass scanning system
Mobile terminal and controlling method thereof
Method of bonding metallic members, and metallic bonded body
Simulation tool for air traffic communications security
Power storage device and method for manufacturing the same
Electronic device, communication control method of electronic device, and information terminal device
Imaging lens
  Randomly Featured Patents
Portable printing device with shutter for covering print head
Method and apparatus for indicating track conditions
Support structure for wells, production facilities, and drilling rigs
Method and device for recording information
Heater assembly for use in a corrosive environment
Current source circuit arrangement
Key telephone area voice paging circuit and method
Process for the production of an aluminum triformate solution containing alkali metal and/or alkaline earth metal, highly concentrated aluminum triformate solutions containing alkali and/or al
Transaction aggregation in a switched file system
Converter for refining liquid metals, with heating and blowing in means