(19)

(11)

EP 0 199 739 A1

(12)

(43) Date of publication: 05.11.1986 Bulletin 1986/45 (21) Application number: 85904389.0 (22) Date of filing: 29.08.1985

(51) International Patent Classification (IPC):  G06F 17/ 00( . ) (86) International application number: PCT/US1985/001655 (87) International publication number: WO 1986/001391 (13.03.1986 Gazette 1986/06)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 31.08.1984 US 19840646613 31.08.1984 US 19840646614 (71) Applicant: BIO-LOGIC SYSTEMS CORPORATION Northbrook, IL 60025 (US)	(72) Inventors: RAVIV, Gil Deerfield, IL 60015 (US) RAVIV, Gabriel Des Plaines, IL 60016 (US)