Device for generating a signal
First Claim
1. A device for generating a prescribed signal, comprising:
- an electrode configured to be supplied with a first voltage from an external power source, the external power source being outside the device, when the device is connected to the external power source;
a signal generating unit having a plurality of terminals, the plurality of terminals including a first terminal, wherein the signal generating unit is configuredto decide whether to operate the device according to a size of a second voltage applied to the first terminal, andto output a prescribed signal, the prescribed signal being an AC signal having a frequency over a reference frequency, according to the decision; and
a control circuit configured to control the second voltage, to output the controlled second voltage to the first terminal, and to control the prescribed signal to be outputted via the electrode, according as whether the first voltage is supplied via the electrode from the external power source.
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Accused Products
Abstract
The present invention relates to a device for generating a signal and method for controlling operation of the same. The present invention provides a device for generating a signal, which includes an electrode, if connected to an external power source, supplied with a voltage from the external power source, a signal generating unit having a plurality of terminals, the signal generating unit deciding whether to operate the device according to a size of a voltage applied to a first terminal among a plurality of the terminals, the signal generating unit outputting a prescribed signal according to the decision, and a control circuit, if the electrode is connected to a plurality of the terminals, controlling a voltage applied to a plurality of the terminals. Accordingly, the present invention is able to control whether to operate a signal generating device using an external power source.
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Citations
19 Claims
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1. A device for generating a prescribed signal, comprising:
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an electrode configured to be supplied with a first voltage from an external power source, the external power source being outside the device, when the device is connected to the external power source; a signal generating unit having a plurality of terminals, the plurality of terminals including a first terminal, wherein the signal generating unit is configured to decide whether to operate the device according to a size of a second voltage applied to the first terminal, and to output a prescribed signal, the prescribed signal being an AC signal having a frequency over a reference frequency, according to the decision; and a control circuit configured to control the second voltage, to output the controlled second voltage to the first terminal, and to control the prescribed signal to be outputted via the electrode, according as whether the first voltage is supplied via the electrode from the external power source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification