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:
Jul. 11, 2006
Filed:
Jun. 24, 2002
John C. Carrick, Wakefield, MA (US);
Paul C Talmadge, Ansonia, CT (US);
Eric B. Saint Georges, Scarsdale, NY (US);
Stuart D. Brorson, New York, NY (US);
John C. Carrick, Wakefield, MA (US);
Paul C Talmadge, Ansonia, CT (US);
Eric B. Saint Georges, Scarsdale, NY (US);
Stuart D. Brorson, New York, NY (US);
Tellabs Operations, Inc., Naperville, IL (US);
Abstract
A pilot tone generator receives optical energy from an optical communication medium carrying a plurality of optical signals. Each optical signal carries data modulated at a unique wavelength and further modulated with a unique identification signal. The identification signal has an amplitude corresponding to an optical power of the associated optical signal. The pilot tone receiver detects each identification signal from the optical energy received and determines its corresponding amplitude. The pilot tone receiver calculates the optical power of each optical signal in the optical energy in response to the amplitude of the associated identification signal.