TELEPHONE LINE INTERFACE OPTION MODULE - Patent 0287570

(19)

(11)

EP 0 287 570 A1

(12)

(43)	Date of publication:
	26.10.1988 Bulletin 1988/43

(21)	Application number: 87900537.0

(22)	Date of filing: 15.12.1986

(51)

International Patent Classification (IPC):

H04M 11/ 00^{( . )}
H04M 1/ 247^{( . )}
H04M 11/ 06^{( . )}

H01F 7/ 08^{( . )}
H04M 1/ 738^{( . )}

(86)	International application number:
	PCT/US1986/002695

(87)	International publication number:
	WO 1987/003764 (18.06.1987 Gazette 1987/13)

(84)	Designated Contracting States:
	DE FR GB IT

(30)

Priority:

13.12.1985 US 19850808787

(71)	Applicant: DIGITAL EQUIPMENT CORPORATION
	Maynard, MA 01754 (US)

(72)	Inventors:
	BLANCHARD, Dennis, R. Hampstead, NH 03841 (US) BRUCKERT, Edward, A. Maynard, MA 01754 (US) CONROY, David, G. Maynard, MA 01754 (US) ELLISON, Richard, D. Worcester, MA 01605 (US) VITALE, Anthony, J. Northboro, MA 01532 (US)

(74)	Representative: Dubois-Chabert, Guy, et al
	Société de Protection des Inventions 25, rue de Ponthieu F-75008 Paris F-75008 Paris (FR)

(54)	TELEPHONE LINE INTERFACE OPTION MODULE