(19)
(11) EP 1 475 699 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
18.02.2009 Bulletin 2009/08

(45) Mention of the grant of the patent:
12.11.2008 Bulletin 2008/46

(21) Application number: 04018295.8

(22) Date of filing: 02.09.1994
(51) International Patent Classification (IPC): 
G06F 7/52(2006.01)

(54)

Multiplier

Multiplizierer

Multiplieur

(84) Designated Contracting States:
BE DE FR GB IT NL

(30) Priority: 02.09.1993 JP 21878093

(43) Date of publication of application:
10.11.2004 Bulletin 2004/46

(62) Application number of the earlier application in accordance with Art. 76 EPC:
94113808.3 / 0642093

(73) Proprietor: Panasonic Corporation
Kadoma-shi Osaka 571-8501 (JP)

(72) Inventors:
  • Nishiyama, Tamotsu
    Yokohama-shi, Kanagawa 247-0022 (JP)
  • Tsubata, Shintaro
    Suita-shi, Osaka 564-0028 (JP)

(74) Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät 
Leopoldstrasse 4
80802 München
80802 München (DE)


(56) References cited: : 
EP-A- 0 309 292
EP-A- 0 605 885
US-A- 5 146 583
 EP-A- 0 447 244
US-A- 4 843 582
US-A- 5 313 414
   
  • KAISER U: "WELLEN-DIGITALFILTER 1. TEIL. PRADESTINIERT FUR KUNDENSPEZIFISCHE DIGITALE SIGNALVERARBEITUNG" ELEKTRONIK, FRANZIS VERLAG GMBH. MUNCHEN, DE, vol. 37, no. 26, 23 December 1988 (1988-12-23), pages 49-53, XP000119891 ISSN: 0013-5658
  • HARTLEY R ED - INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS: "OPTIMIZATION OF CANONIC SIGNED DIGIT MULTIPLIERS FOR FILTER DESIGN" VLSI DESIGN AND CAD. SINGAPORE, JUNE 11 - 14, 1991, PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, NEW YORK, IEEE, US, vol. VOL. 4 SYMP. 24, 11 June 1991 (1991-06-11), pages 1992-1995, XP000302845 ISBN: 0-7803-0050-5
  • PATENT ABSTRACTS OF JAPAN vol. 18, no. 606 (P-1827), 17 November 1994 (1994-11-17) & JP 6 223097 A (SONY CORP), 12 August 1994 (1994-08-12)
  • PATENT ABSTRACTS OF JAPAN vol. 18, no. 631 (P-1836), 30 November 1994 (1994-11-30) & JP 6 243194 A (MATSUSHITA ELECTRIC IND. CO.), 2 September 1994 (1994-09-02)
  • PATENT ABSTRACTS OF JAPAN vol. 15, no. 140 (P-1188), 9 April 1991 (1991-04-09) & JP 3 017737 A (MATSUSHITA ELECTRIC IND. CO. LTD.), 25 January 1991 (1991-01-25)
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).