OPTICAL CIRCUIT FOR OBTAINING A MONITOR SIGNAL - Patent 1053647

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EP 1 053 647 A1

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(43)	Date of publication:
	22.11.2000 Bulletin 2000/47

(21)	Application number: 99907396.8

(22)	Date of filing: 21.01.1999

(51)	International Patent Classification (IPC)⁷: H04Q 3/52, H04Q 11/00

(86)	International application number:
	PCT/EP9900/386

(87)	International publication number:
	WO 9940/738 (12.08.1999 Gazette 1999/32)

(84)	Designated Contracting States:
	AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

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Priority:

05.02.1998 NL 1008206

(71)	Applicant: Koninklijke KPN N.V.
	9726 AE Groningen (NL)

(72)	Inventor:
	VAN DER TOL, Johannes, Jacobus, Gerardus, Maria NL-2728 MP Zoetermeer (NL)

(74)	Representative: Klein, Bart et al
	Koninklijke KPN N.V.,P.O. Box 95321 2509 CH The Hague 2509 CH The Hague (NL)

(54)	OPTICAL CIRCUIT FOR OBTAINING A MONITOR SIGNAL