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. 28, 2003
Filed:
Aug. 31, 2000
Tek-Ming Shen, Westfield, NJ (US);
Wenhua Lin, Pasadena, CA (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A scheme is described for controlling adjacent channel crosstalk so that an optical receiver can accurately detect the presence of a signal in its respective optical channel after a loss of signal condition occurs. According to illustrative embodiments of the invention, crosstalk-induced cross-traffic is prevented so that traffic from an adjacent channel is not carried in a channel that is out of service due to a loss of signal condition. More specifically, adjacent channel crosstalk, which might otherwise exceed the receiver sensitivity threshold of the failed channel, is substantially reduced or eliminated so that a receiver will not improperly identify and lock onto an adjacent channel thereby causing the cross-traffic condition.