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:
Dec. 02, 2008
Filed:
May. 05, 2004
Paulus Henricus Antonius Damink, Eindhoven, NL;
Sel Brian Colak, Eindhoven, NL;
Maurice Herman Johan Draaijer, Eindhoven, NL;
Maurice Leonardus Anna Stassen, Eindhoven, NL;
Paulus Henricus Antonius Damink, Eindhoven, NL;
Sel Brian Colak, Eindhoven, NL;
Maurice Herman Johan Draaijer, Eindhoven, NL;
Maurice Leonardus Anna Stassen, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
In an optical communication method, an accurate common clock signal (GPS) is provided to a sender () and a receiver (). In the sender, the common clock signal is received, a first clock signal (CLK) is generated on the basis of said common clock signal, a carrier wave with a predetermined carrier frequency (f) is generated using said clock signal as timing reference, the carrier wave is modulated with a data signal, and the modulated carrier wave is transmitted using a light beam (). In the receiver, the common clock signal is received, a reference signal having the same frequency (f) as the carrier frequency is generated on the basis of said common clock signal, said optical beam () is received, a detection signal is derived from the optical beam, the receiver is tuned to the predetermined carrier frequency (f), and the data signal is derived from the detection signal.