(19)
(11) EP 0 197 965 A1

(12)

(43) Date of publication:
22.10.1986 Bulletin 1986/43

(21) Application number: 85904764.0

(22) Date of filing: 18.09.1985
(51) International Patent Classification (IPC): 
G05F 3/ 26( . )
G05F 3/ 28( . )
(86) International application number:
PCT/US1985/001805
(87) International publication number:
WO 1986/002180 (10.04.1986 Gazette 1986/08)
(84) Designated Contracting States:
DE FR GB IT NL

(30) Priority: 01.10.1984 US 19840656343
24.12.1984 US 19840685990

(71) Applicant: AT&T Corp.
New York, NY 10013-2412 (US)

(72) Inventors:
  • MORRIS, Bernard, Lee
    Allentown, PA 18104 (US)
  • NAGY, Jeffrey, Jay
    Whitehall, PA 18052 (US)
  • WALTER, Lawrence, Arthur
    Allentown, PA 18103 (US)

(74) Representative: Buckley, Christopher Simon Thirsk 
AT&T (UK) Ltd. 5 Mornington Road
Woodford Green Essex IG8 0TU
Woodford Green Essex IG8 0TU (GB)

   


(54) A FIELD EFFECT TRANSISTOR CURRENT SOURCE