Integrated circuit with a measuring circuit and method of...

Details Integrated circuit with a measuring circuit and method of... Integrated circuit with a measuring circuit and method of...

2008-04-23

2010-10-19

Nguyen, Vinh P (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With rotor

C324S765010

Reexamination Certificate

active

07816907

ABSTRACT:
An integrated circuit includes an output terminal to be coupled to a light-emitting diode, an output circuit coupled to the output terminal, the output circuit being configured to supply an operating signal to the light-emitting diode, a measuring circuit coupled to the output terminal and a control circuit coupled to the measuring circuit. The measuring circuit is configured to sense on the output terminal a signal value outside an operating regime of the light-emitting diode, the signal value being a voltage below a forward voltage of the light-emitting diode or a current below a threshold current of the light-emitting diode. The control circuit is configured to configure at least one function of the integrated circuit when the signal value as sensed by the measuring circuit corresponds to a voltage below the forward voltage of the light-emitting diode or a current below the threshold current of the light-emitting diode.

REFERENCES:
patent: 5629635 (1997-05-01), Reno
patent: 6515506 (2003-02-01), Lo
patent: 6564161 (2003-05-01), Lin et al.
patent: 7111218 (2006-09-01), Egger et al.
patent: 7382148 (2008-06-01), Dang et al.
patent: 2009/0284237 (2009-11-01), Kitagawa et al.

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