Global Patent Index - EP 1316089 A1

EP 1316089 A1 2003-06-04 - METHOD AND DEVICE FOR INITIALISING A PHASE-CHANGE RECORDING MEDIUM

Title (en)

METHOD AND DEVICE FOR INITIALISING A PHASE-CHANGE RECORDING MEDIUM

Title (de)

VERFAHREN UND VORRICHUNG ZUR INITIALISIERUNG EINES OPTISCHEN AUFZEICHNUNGSMEDIUMS VOM PHASENWECHSELTYP

Title (fr)

PROCEDE ET DISPOSITIF POUR L'INITIALISATION D'UN MILIEU D'ENREGISTREMENT A CHANGEMENT DE PHASE

Publication

EP 1316089 A1 (FR)

Application

EP 01965384 A

Priority

  • FR 0102756 W
  • FR 0011306 A

Abstract (en)

[origin: WO0221521A1] The invention concerns a method and a device for initialising a phase-change recording medium which consists in heating the phase-change medium to be initialised by sweeping the surface of said medium with a light source. The invention is characterised in that the laser source consists of at least an extended light source emitting at least a beam directed towards an optical element providing it with convergence in a single heating zone, with a single intensity profile shape. The invention also concerns the recording products resulting from said method.

IPC 1-7 (main, further and additional classification)

G11B 7/125; G11B 7/26

IPC 8 full level (invention and additional information)

G11B 7/0055 (2006.01); G11B 7/125 (2012.01); G11B 7/26 (2006.01); G11B 7/135 (2012.01)

CPC (invention and additional information)

G11B 7/127 (2013.01); G11B 7/00557 (2013.01); G11B 7/126 (2013.01); G11B 7/1353 (2013.01); G11B 7/26 (2013.01)

Citation (search report)

See references of WO 0221521A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0221521 A1 20020314; AU 8602901 A 20020322; EP 1316089 A1 20030604; FR 2813695 A1 20020308; FR 2813695 B1 20030411

INPADOC legal status


2006-01-11 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20050706

2004-01-07 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20031121

2003-06-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030303

2003-06-04 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-04 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI