Electric lamp and discharge devices: systems – Combined load device or load device temperature modifying... – Filament – electric heater – or resistance in shunt with the...
Reexamination Certificate
2005-08-23
2005-08-23
Vo, Tuyet Thi (Department: 2821)
Electric lamp and discharge devices: systems
Combined load device or load device temperature modifying...
Filament, electric heater, or resistance in shunt with the...
C315S098000, C313S495000, C313S496000
Reexamination Certificate
active
06933676
ABSTRACT:
A vacuum fluorescence display has a plurality of heating regions and heating inputs corresponding thereto. A driver circuit for the VFD has a driver module with a pulse width-modulatable output connected by way of a distributor to a plurality of heating inputs of the VFD. A switching member is connected between the distributor and one or more of the heating inputs.
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Diehl AKO Stiftung & Co. KG
Greenberg Laurence A.
Locher Ralph E.
Stemer Werner H.
Vo Tuyet Thi
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