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:
May. 20, 2014
Filed:
Sep. 25, 2012
Kelvin Chau, Pleasanton, CA (US);
Kelvin Chau, Pleasanton, CA (US);
Glimmerglass Networks, Inc., Hayward, CA (US);
Abstract
Signals employed to align and cause dithering via MEMS mirrors in an optical cross connect switch are manipulated to impose, on the optical beam (steered via the MEMS mirrors) amplitude modulation and in particular a time-varying set of induced mirror angles that yield a desired time history of optical power level that is modulated according to a digital code in the amplitude modulation pattern. The controlled time sequence expressed as a time-varying optical power level can be used for in-band signaling along the same optical channels available for conventional optical data. The amplitude modulated signal is conveyed through the cross connect switch and is useful for example in control and command of the cross connect switch.