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:
Jan. 02, 2007
Filed:
Feb. 25, 2002
Sharon Mantin, Tel Aviv, IL;
David Zelig, Givatayim, IL;
Shmuel Ilan, Raanana, IL;
Leon Bruckman, Petah Tikva, IL;
Sharon Mantin, Tel Aviv, IL;
David Zelig, Givatayim, IL;
Shmuel Ilan, Raanana, IL;
Leon Bruckman, Petah Tikva, IL;
Corrigent Systems Ltd., Tel Aviv, IL;
Abstract
A performance management unit manages a primary interface and a standby or secondary interface to two channels of an optical communications network having APS capabilities. Each performance parameter is associated with three counters. First and second counters are linked to registers of the primary and the secondary ports, and the third counter is linked to the registers of the currently active port. When a protection switch occurs, the first and second counters are immediately read and reset. The third counter continues accumulating data, but becomes associated with the new active port. At the end of a read interval, the third counter correctly reflects the number of data received, regardless of switchovers between the primary and secondary channels.