Switching device for driving LED array by pulse-shaped...

Details Switching device for driving LED array by pulse-shaped... Switching device for driving LED array by pulse-shaped...

2003-02-06

2008-12-09

Vo, Tuyet (Department: 2821)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By pulse width or spacing

C327S035000, C327S039000, C327S044000, C327S050000, C315S247000, C315S2090SC, C315S246000

Reexamination Certificate

active

07463070

ABSTRACT:
A circuit drives an LED array and controls the brightness of the LED array by regulating the current flowing through the array. The LED array is driven by a pulse-shaped current of which the mean value is regulated with at least one or two of the following types of modulation: frequency modulation, pulse-width modulation, and amplitude modulation.

REFERENCES:
patent: 3998043 (1976-12-01), Tamaru et al.
patent: 5736881 (1998-04-01), Ortiz
patent: 6333605 (2001-12-01), Grouev et al.
patent: 6388398 (2002-05-01), Li et al.
patent: 6580309 (2003-06-01), Jacobs et al.
patent: 6686703 (2004-02-01), Erhardt et al.
patent: 6836079 (2004-12-01), Hong
patent: 2003/0085749 (2003-05-01), Xu et al.
patent: 2003/0127995 (2003-07-01), Kramer et al.
patent: 19732828 (1999-02-01), None
patent: 0553867 (1993-08-01), None
patent: 0625843 (1994-11-01), None
patent: WO9956303 (1999-11-01), None
patent: WO0020691 (2000-04-01), None

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