Global patent index - EP 0876658 A4

EP 0876658 A4 2000-02-09 - RETROFIT LIGHTING SYSTEM THAT NON-INVASIVELY INTERACTS WITH A HOST MACHINE

Title (en)

RETROFIT LIGHTING SYSTEM THAT NON-INVASIVELY INTERACTS WITH A HOST MACHINE

Title (de)

NACHTRÄGLICHES BELEUCHTUNGSSYSTEM MIT NICHTINVASIVER WECHSELWIRKUNG MIT EINEM HAUPTRECHNER

Title (fr)

SYSTEME D'ECLAIRAGE ADAPTABLE APRES-COUP INTERAGISSANT DE FA ON NON INVASIVE AVEC UNE MACHINE HOTE

Publication

EP 0876658 A4 (EN)

Application

EP 97903093 A

Priority

  • US 9701128 W
  • US 59101496 A
  • US 69897396 A
  • US 78373297 A

Abstract (en)

[origin: WO9727576A1] A retrofit lighting system (100), for use with a host machine (104), produces lighting effects in response to lamp power signals that are provided from the host system (104) and that would otherwise be used to power lamps (108) of the host machine (104). An EL lamp system (108) has a plurality of EL lamp cells. Sequencing circuitry (106) provides an EL lamp driving signal to independently control each of the EL lamp cells of the EL lamp system (108) such that the EL lamp cells collectively illuminate in a sequence corresponding to the EL lamp driving signal. The microcontroller (406) controls the frequency, amplitude, and duty cycle to the electroluminescent lamps (108). By changing the frequency, the microcontroller (406) alters the intensity and illumination color. By changing the amplitude, the microcontroller (406) alters the illumination intensity. Further, data signal lines are supplied from the microcontroller (406) to select which electroluminescent lamps (108) to illuminate, thereby creating animated displays. Signal conditioning circuitry (102) non-invasively samples the lamp power signals provided from the host system (104), and provides the driving signal to the EL lamp (108) in response thereto.

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

G09G 3/30; G07F 17/32; G09G 3/12

IPC 8 full level (invention and additional information)

H05B 37/02 (2006.01); G07F 17/32 (2006.01); G09G 3/20 (2006.01); G09G 3/30 (2006.01); H05B 33/08 (2006.01)

CPC (invention and additional information)

G07F 17/3211 (2013.01); G07F 17/3276 (2013.01); G07F 17/3295 (2013.01); H05B 33/08 (2013.01); Y02B 20/325 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9727576 A1 19970731; AU 1709097 A 19970820; AU 716031 B2 20000217; BR 9707084 A 19990406; CA 2244212 A1 19970731; CN 1217805 A 19990526; EA 001005 B1 20000828; EP 0876658 A1 19981111; EP 0876658 A4 20000209; JP 2000503125 A 20000314; NZ 331022 A 20000929

INPADOC legal status

2002-03-20 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020128

2000-02-09 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 19991228

2000-02-09 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2000-02-09 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7G 09G 3/30 A, 7G 07F 17/32 B, 7G 09G 3/12 B

1999-12-08 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 6G 09G 3/30 A, 6G 07F 17/32 B

1998-11-11 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19980812

1998-11-11 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

1998-11-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL PAYMENT 980812;LT PAYMENT 980812;LV PAYMENT 980812;RO PAYMENT 980812;SI PAYMENT 980812