Infrared circuit for single battery and remote controller using the same
First Claim
1. An infrared (IR) circuit to be driven by only one single battery, which outputs a battery voltage, the infrared circuit comprising:
- an IR light-emitting diode (LED) circuit coupled between the battery voltage and a common voltage;
an inductor coupled between the battery voltage and the common voltage; and
a microcontroller comprising an input/output (I/O) port coupled to the inductor and the IR LED circuit, wherein,when infrared rays are emitted, the microcontroller controls the battery voltage to charge the inductor through the I/O port, and utilizes a continuous current of the inductor to force the IR LED circuit to turn on.
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Accused Products
Abstract
An infrared circuit for a single battery and a remote controller using the same are provided. The single battery outputs a battery voltage. The infrared circuit comprises an IR LED circuit, an inductor and a microcontroller. The IR LED circuit is coupled between the battery voltage and a common voltage. The inductor is coupled between the battery voltage and the common voltage. The microcontroller has an I/O port coupled to the inductor and the IR LED circuit. When infrared rays are emitted, the microcontroller controls the battery voltage to charge the inductor through the I/O port, and a continuous current of the inductor forces the IR LED circuit to turn on.
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Citations
18 Claims
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1. An infrared (IR) circuit to be driven by only one single battery, which outputs a battery voltage, the infrared circuit comprising:
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an IR light-emitting diode (LED) circuit coupled between the battery voltage and a common voltage; an inductor coupled between the battery voltage and the common voltage; and a microcontroller comprising an input/output (I/O) port coupled to the inductor and the IR LED circuit, wherein, when infrared rays are emitted, the microcontroller controls the battery voltage to charge the inductor through the I/O port, and utilizes a continuous current of the inductor to force the IR LED circuit to turn on. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A remote controller, comprising:
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a button; a single battery outputting a battery voltage; and an infrared circuit for the single battery, comprising; an IR LED circuit coupled between the battery voltage and a common voltage; an inductor coupled between the battery voltage and the common voltage; and a microcontroller, which is coupled to the button and comprises an I/O port, wherein the I/O port of the microcontroller is coupled to the inductor and the IR LED circuit, wherein, when the button is pressed down, the microcontroller controls the IR LED circuit to emit infrared rays according to the pressed button, wherein, when the infrared rays are emitted, the microcontroller controls the battery voltage to charge the inductor through the I/O port, and utilizes a continuous current of the inductor to force the IR LED circuit to turn on. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification