(19)

(11)

EP 0 067 992 A1

(12)

(43) Date of publication: 05.01.1983 Bulletin 1983/01 (21) Application number: 81901576.0 (22) Date of filing: 24.12.1980

(51) International Patent Classification (IPC):  G11C 11/ 418( . ) H03K 19/ 0185( . ) (86) International application number: PCT/US1980/001727 (87) International publication number: WO 1982/002278 (08.07.1982 Gazette 1982/17)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (71) Applicant: MOSTEK CORPORATION Carrollton, TX 75006 (US)	(72) Inventor: O'TOOLE, James E. Carrollton, TX 75006 (US)