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:
Jun. 06, 2006
Filed:
Feb. 26, 2001
Leo L. Stearns, Petaluma, CA (US);
Matthew K. Meeker, Santa Rosa, CA (US);
Leo L. Stearns, Petaluma, CA (US);
Matthew K. Meeker, Santa Rosa, CA (US);
Calix Networks, Inc., Petaluma, CA (US);
Abstract
A method and apparatus for effecting 1:1 or N:1 equipment protection switching in the line units of a voice-and-data access and transport network includes three sets of switches associated with the line units that can be selectively provisioned by the system operator into protect groups. In one embodiment, the switches are arranged and controlled within the protect groups by one or more dedicated microprocessors such that, upon the failure of a protected one of the line units in a protect group, the stream of traffic to an associated, protect one of the line units in the protect group is dropped, and the traffic stream to the failed line unit is switched over to the protect line unit for continued processing.