(19)
(11) EP 0 797 871 A1

(12)

(43) Date of publication:
01.10.1997 Bulletin 1997/40

(21) Application number: 95910070.0

(22) Date of filing: 16.12.1994
(51) International Patent Classification (IPC): 
H03K 3/ 2897( . )
H03K 5/ 08( . )
H03K 3/ 0233( . )
(86) International application number:
PCT/US1994/014459
(87) International publication number:
WO 1996/019042 (20.06.1996 Gazette 1996/28)
(84) Designated Contracting States:
DE FR GB

(71) Applicant: International Business Machines Corporation
Armonk, N.Y. 10504 (US)

(72) Inventor:
  • BONACCIO, Anthony, R.
    Shelburne, VT 05482 (US)

(74) Representative: Ling, Christopher John, et al 
IBM United Kingdom Limited, intellectual Property Department, Hursley Park
Winchester, Hampshire SO21 2JN
Winchester, Hampshire SO21 2JN (GB)

   


(54) DIFFERENTIAL COMPARATOR WITH ADJUSTABLE THRESHOLD AND TRACKING HYSTERESIS