ON-HOOK/OFF-HOOK DETECTOR CIRCUIT

(19)

(11)

EP 0 067 154 A1

(12)

(43)	Date of publication:
	22.12.1982 Bulletin 1982/51

(21)	Application number: 81901572.0

(22)	Date of filing: 22.12.1980

(51)

International Patent Classification (IPC):

H04M 1/ 82^{( . )}

H04M 3/ 22^{( . )}

(86)	International application number:
	PCT/US1980/001699

(87)	International publication number:
	WO 1982/002307 (08.07.1982 Gazette 1982/17)

(84)	Designated Contracting States:
	AT CH DE FR GB LI LU NL SE

(71)	Applicant: MOSTEK CORPORATION
	Carrollton Dallas, Texas 75006 (US)

(72)	Inventor:
	DAVIS, Harold Louis The Colony, TX 75056 (US)

(54)	ON-HOOK/OFF-HOOK DETECTOR CIRCUIT