Electrical transmission or interconnection systems – Plural load circuit systems – Selectively connected or controlled load circuits
Reexamination Certificate
2008-01-01
2008-01-01
Easthom, Karl (Department: 2838)
Electrical transmission or interconnection systems
Plural load circuit systems
Selectively connected or controlled load circuits
C345S082000
Reexamination Certificate
active
07315095
ABSTRACT:
In a soft start period after power-on, a voltage regulating apparatus checks LED by LED to determine whether the LED is mounted on a position to receive a drive voltage. After the soft start period, the voltage regulating apparatus monitors the driving status of each of the plurality of LEDs. When it is determined as a result of monitoring that the driving status of at least one of the LEDs is improper, the voltage regulating apparatus increases the drive voltage. In this process, the monitoring on an LED determined to be unmounted as a result of a mount checking process is invalidated. With this, it is ensured that a result of monitoring on the LED unmounted is prevented from affecting the increasing of the drive voltage.
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WO 2003/096436 Horiuchi, Light Emitting Drive Device and Electronic Device Having Light Emiting Element, WIPO, Nov. 20, 2003, pp. 1-24.
Araki Kyoichiro
Kagemoto Noboru
Yamamoto Isao
Behm Harry
Cantor & Colburn LLP
Easthom Karl
Rohm & Co., Ltd.
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