(19)
(11) EP 1 318 627 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:
18.04.2007 Bulletin 2007/16

(45) Mention of the grant of the patent:
11.10.2006 Bulletin 2006/41

(21) Application number: 02292976.4

(22) Date of filing: 03.12.2002
(51) International Patent Classification (IPC): 
H04L 7/00(2006.01)
 H04B 10/148(2006.01)

(54)

Optical clock phase-locked loop circuit

Optische Takt-Phasenregelschleifen-Schaltung

Boucle de verroulliage d'horloge optique

(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 04.12.2001 JP 2001370169

(43) Date of publication of application:
11.06.2003 Bulletin 2003/24

(73) Proprietor: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Tokyo (JP)

(72) Inventors:
  • Ohara, Takuya, NTT IP Center
    Musashino-shi, Tokyo (JP)
  • Takara, Hidehiko, NTT IP Center
    Musashino-shi, Tokyo (JP)
  • Kawanishi, Satoki, NTT IP Center
    Musashino-shi, Tokyo (JP)

(74) Representative: Simonnet, Christine et al
Brevalex, 3, rue du Docteur Lancereaux
75008 Paris
75008 Paris (FR)


(56) References cited: : 
EP-A- 0 595 206
US-A- 5 706 113
 EP-A- 1 119 119
   
  • UCHIYAMA K ET AL: "HIGHLY PRECISE BIT-PHASE SYNCHRONIZATION TECHNIQUE FOR AN OPTICALLYCONTROLLED TIME-DIVISION DEMULTIPLEXER" OPTICAL FIBER COMMUNICATION CONFERENCE. (OFC). TECHNICAL DIGEST POSTCONFERENCE EDITION. BALTIMORE, MD, MARCH 7 - 10, 2000, NEW YORK, NY: IEEE, US, vol. 3 OF 4, 7 March 2000 (2000-03-07), pages THV3-1-THV3-3, XP001036045 ISBN: 0-7803-5952-6
   
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).