APPARATUS FOR PROVIDING TONE SIGNALS IN TERMINALS FOR A DIGITAL TELECOMMUNNICATION SYSTEM - Patent 0126137

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EP 0 126 137 A1

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(43)	Date of publication:
	28.11.1984 Bulletin 1984/48

(21)	Application number: 83903840.0

(22)	Date of filing: 23.11.1983

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International Patent Classification (IPC):

H04M 19/ 04^{( . )}

H04Q 1/ 448^{( . )}

(86)	International application number:
	PCT/SE1983/000410

(87)	International publication number:
	WO 1984/002240 (07.06.1984 Gazette 1984/14)

(84)	Designated Contracting States:
	DE FR GB NL

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Priority:

25.11.1982 SE 19820006725

(71)	Applicant: TELEFONAKTIEBOLAGET L M ERICSSON
	S-126 25 Stockholm (SE)

(72)	Inventor:
	SJÖBERG, Per-Olof S-116 50 Stockholm (SE)

(74)	Representative: Szemere, Fredrik, et al
	Civilingenjör Fredrik Szemere Patentbyra Erik Dahlbergsgatan 27 S-115 32 Stockholm S-115 32 Stockholm (SE)

(54)	APPARATUS FOR PROVIDING TONE SIGNALS IN TERMINALS FOR A DIGITAL TELECOMMUNNICATION SYSTEM