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:
Mar. 13, 2007
Filed:
Oct. 28, 2002
Joshua A. Conway, Palos Verdes Estates, CA (US);
Grant S. Williams, El Segundo, CA (US);
Joshua A. Conway, Palos Verdes Estates, CA (US);
Grant S. Williams, El Segundo, CA (US);
The Boeing Company, Chicago, IL (US);
Abstract
A differential quadrature phase shift keyed system includes a fiber optic source and a first fiber optic differential phase shift keyed demodulator coupled to the fiber optic source having a first phase differential. A second fiber optic differential phase shift keyed demodulator is coupled to the fiber optic source disposed parallel with the first fiber optic differential phase shift key demodulator. The second demodulator has a second phase shift differential equal to the first phase differential plus about 90 degrees.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile