(19)
(11) EP 1 576 736 A1

(12)

(43) Date of publication:
21.09.2005 Bulletin 2005/38

(21) Application number: 02808341.8

(22) Date of filing: 23.12.2002
(51) International Patent Classification (IPC)7H04B 1/10, H03B 21/00, H03H 7/30
(86) International application number:
PCT/US2002/041396
(87) International publication number:
WO 2004/059855 (15.07.2004 Gazette 2004/29)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR
Designated Extension States:
AL LT LV MK RO

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

(72) Inventors:
  • GANTI, Ramkishore
    Dripping Springs, TX 78620 (US)
  • ESHRAGHI, Aria
    Austin, TX 78733 (US)

(74) Representative: Sekar, Anita 
IBM United Kingdom Limited, Intellectual Property Department, Hursley Park Winchester,
Hampshire SO21 2JN
Hampshire SO21 2JN (GB)

   


(54) BANDPASS DELTA SIGMA TRUNCATOR AND METHOD OF TRUNCATING A MULTI-BIT DIGITAL SIGNAL