The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2006
Filed:
Jul. 22, 2003
Henry Adam Sowizral, Bellevue, WA (US);
Christopher Robin Payne, Redmond, WA (US);
Ian Gareth Angus, Mercer Island, WA (US);
Alan Shelton Wagner, Richmond, CA;
Patrick Neal Harris, Redmond, WA (US);
Kermit Andreas Hollinger, Renton, WA (US);
Henry Adam Sowizral, Bellevue, WA (US);
Christopher Robin Payne, Redmond, WA (US);
Ian Gareth Angus, Mercer Island, WA (US);
Alan Shelton Wagner, Richmond, CA;
Patrick Neal Harris, Redmond, WA (US);
Kermit Andreas Hollinger, Renton, WA (US);
Terabeam Corporation, Falls Church, VA (US);
Abstract
A link quality agent running in a computer embedded in a device, such as an optical communication transceiver, to monitor an optical signal quality of the link. In one embodiment, avalanche photodiode (APD) and filter wheel values on each side of the free space link as well as packet errors from a distribution switch are monitored. When the link quality agent determines that the free space link is marginal (based on the monitored optical signal quality), the link quality agent configures down the port between the distribution switch and the router on the receive end of the free space link, and forces customer traffic over a backup link. When both ends of the free space link are again functional, the link quality agent configures the port up and routes customer traffic to the free space link.