(19)
(11) EP 0 489 619 B8

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

(15) Correction information:
Corrected version no 1 (W1 B2)

(48) Corrigendum issued on:
09.05.2007 Bulletin 2007/19

(45) Date of publication and mentionof the opposition decision:
24.01.2007 Bulletin 2007/04

(45) Mention of the grant of the patent:
15.07.1998 Bulletin 1998/29

(21) Application number: 91403187.7

(22) Date of filing: 26.11.1991
(51) International Patent Classification (IPC): 
H04M 3/42(2006.01)

(54)

Private branch exchange

Nebenstellenanlage

Autocommutateur téléphonique privé

(84) Designated Contracting States:
DE GB

(30) Priority: 27.11.1990 JP 32622990
27.11.1990 JP 32623090
27.11.1990 JP 32623190

(43) Date of publication of application:
10.06.1992 Bulletin 1992/24

(73) Proprietor: CANON KABUSHIKI KAISHA
Tokyo (JP)

(72) Inventors:
  • Sakurai, Shigeki, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)
  • Takashima, Shoichi, c/o Canon Kabushiki Kaisha
    Ohta-ku, Tokyo (JP)

(74) Representative: Santarelli 
14, avenue de la Grande Armée
75017 Paris
75017 Paris (FR)


(56) References cited: : 
EP-A- 0 341 687
DE-C- 3 808 413
 DE-A- 3 621 869
JP-A- 2 200 055
   
  • D1: Sonderausgabe telcom report und Siemens-Magazin COM, "ISDN im Büro-Hicom-Anwendernutzen und Technik des ISDN-Kommunikationssystems HICOM", herausgegeben von der Siemens Aktiengesellschaft, Berlin und München, 1985, ISBN 3-8009-3846-4