Global Patent Index - EP 1016329 A1

EP 1016329 A1 2000-07-05 - GROUP DIMMING SYSTEM FOR GAS DISCHARGE LAMPS

Title (en)

GROUP DIMMING SYSTEM FOR GAS DISCHARGE LAMPS

Title (de)

EINRICHTUNG ZUR GRUPPENWEISEN HELLIGKEITSREGELUNG VON GASENTLADUNGSLAMPEN

Title (fr)

SYSTEME DE VARIATEUR POUR GROUPE DE LAMPES A DECHARGE GAZEUSE

Publication

EP 1016329 A1 (EN)

Application

EP 98947138 A

Priority

  • US 9819520 W
  • US 5920197 P

Abstract (en)

[origin: WO9914988A1] The invention relates to dimming a plurality of gas discharge lamps without using high current switching components, thereby reducing electromagnetic interference commonly associated with the switching of high currents.

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

H05B 37/02; H05B 41/392

IPC 8 full level (invention and additional information)

H05B 37/02 (2006.01); H05B 41/392 (2006.01)

CPC (invention and additional information)

H05B 41/3927 (2013.01); H05B 37/0254 (2013.01)

Citation (search report)

See references of WO 9914988A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 9914988 A1 19990325; AU 9398798 A 19990405; EP 1016329 A1 20000705

INPADOC legal status


2004-11-17 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20040518

2002-01-23 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011205

2000-07-05 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000309

2000-07-05 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE FR GB IT