(19)

(11)

EP 0 120 074 A1

(12)

(43) Date of publication: 03.10.1984 Bulletin 1984/40 (21) Application number: 83903279.0 (22) Date of filing: 22.09.1983

(51) International Patent Classification (IPC):  A61B 8/ 00( . ) G01S 15/ 89( . ) G01S 7/ 52( . ) (86) International application number: PCT/US1983/001469 (87) International publication number: WO 1984/001435 (12.04.1984 Gazette 1984/10)

(84) Designated Contracting States: FR (30) Priority: 29.09.1982 US 19820427694 (71) Applicant: SRI INTERNATIONAL Menlo Park, California 94025 (US)	(72) Inventors: GREEN, Philip, Shepard Atherton, CA 94025 (US) HAVLICE, James, Fred Los Altos, CA 94022 (US) HOLZEMER, John, Franklin Menlo Park, CA 94025 (US) (74) Representative: Santarelli, Marc, et al  Cabinet Rinuy et Santarelli 14, avenue de la Grande Armée F-75017 Paris F-75017 Paris (FR)