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Title:
通信システム
Document Type and Number:
Japanese Patent JP2006525740
Kind Code:
A
Abstract:
In an optical communication method, an accurate common clock signal (GPS) is provided to a sender (10) and a receiver (20). In the sender, the common clock signal is received, a first clock signal (CLK1) 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 (13). 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 (13) 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.

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Inventors:
Damink, Paulus Harer
Koraku, selby
D'Ayer, Maurice Hayay
Maurice Lure, Stassen
Application Number:
JP2006507545A
Publication Date:
November 09, 2006
Filing Date:
May 05, 2004
Export Citation:
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Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
H04B10/10; G03B21/56; G08G1/017; G08G1/04; G08G1/0967; G09F19/18; H04B7/02; H04B7/06; H04B10/00; H04B10/118; H04B10/22; H04L1/06; H04L7/00; H04W12/02; H04W56/00; H04W72/04
Domestic Patent References:
JPH1022923A1998-01-23
JPH11191919A1999-07-13
JP2002506591A2002-02-26
JPH11505691A1999-05-21
JP2003069507A2003-03-07
JP2000216741A2000-08-04
JP2000224112A2000-08-11
JP2002009723A2002-01-11
JP2002237758A2002-08-23
JP2001511962A2001-08-14
Foreign References:
WO2001080478A12001-10-25
WO1998029970A11998-07-09
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Watanabe Naomitsu