KR101517208B1 - Charging dongle for stereo - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging dongle for a stereo terminal, and more particularly, to a charging dongle for a stereo terminal that provides power and control functions to an external device using a stereo terminal of the mobile device. A charging dongle for a stereo terminal according to a preferred embodiment of the present invention includes: a connection part connected to a stereo terminal of a mobile device; And a power supply unit for receiving the voice signal current corresponding to the sound source reproduced in the mobile device through the connection unit and for providing the received voice signal current to the external device. At this time, the external device uses the supplied voice signal current as a power source.

Description

{Charging dongle for stereo}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging dongle for a stereo terminal, and more particularly, to a charging terminal for a stereo terminal that supplies power to an external device using a voice signal current output from the stereo terminal of the mobile device.

A dongle is a device connected to an input / output terminal of a mobile device. In recent years, a dongle is generally referred to as a broadband adapter for connecting a function of WIFI, Bluetooth, etc. to use through a mobile device.

In addition, mobile devices such as mobile phones and laptops have various functions, which is an essential element for modern living. In recent years, mobile devices have been increasingly used in various applications. Mobile devices now have an infrastructure that can be charged from bookstores, cafes, and restaurants so that they can be easily charged from anywhere, and charging devices for mobile devices are also miniaturized, making them portable.

On the other hand, a device driven by a small power source rather than a mobile device (e.g., a remote controller, an infrared sensor, a PPT laser pointer, etc.) has a problem that charging is difficult in an emergency when the battery is suddenly discharged.

That is, although charging methods such as mobile devices are becoming popular regardless of the type of device, there is a great inconvenience that device devices other than mobile devices are difficult to charge in case of emergency.

Accordingly, it is an object of the present invention to provide a charging terminal for a stereo terminal that can transmit a voice signal current output from a stereo terminal of a mobile device to a power source of an external device using an existing mobile device.

Other objects of the present invention will become readily apparent from the following description of the embodiments.

According to an aspect of the present invention, there is provided a charging terminal for a stereo terminal, comprising: a receiving unit for receiving a voice signal current generated in a mobile device through a connection unit and a connection unit connected to a stereo terminal of the mobile equipment; And a power supply unit for supplying a voice signal current to an external device. At this time, the external device uses the supplied voice signal current as a power source.

Here, the power supply unit can convert the voice signal current output from the stereo terminal into a usable form for an external device, and provide it to an external device.

In addition, the voice signal current may correspond to a sound source including a section having a predetermined sound at a predetermined period in a predetermined range. That is, the voice signal current may have a constant period and a certain amplitude in a section having a constant tone at a predetermined cycle.

The control unit may further include a control signal processing unit for controlling the external device in accordance with a control signal by providing a control signal received from the mobile device to the external device in a predetermined manner.

The connection unit may include a first channel for receiving a voice signal current corresponding to a potential difference between the positive electrode (+) and the reference electrode (GND) of the stereo terminal of the mobile device; And a second channel for receiving a control signal corresponding to a potential difference between the negative electrode (-) of the stereo terminal and the reference electrode (GND) of the mobile device.

As described above, according to the present invention, by charging the audio signal current outputted from the stereo terminal of the mobile device with the power of the external device, it is possible to charge the external device using the existing mobile device .

Further, by using the charging terminal for a stereo terminal according to the present invention, various applications that can be executed in a mobile device can be controlled in cooperation with an external device.

1 shows a charging system to which a charging dongle is applied according to a preferred embodiment of the present invention.
Figure 2 shows a functional block diagram of the charging dongle of Figure 1;
Fig. 3 shows the configuration of the connecting portion of Fig. 2. Fig.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail.

It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, .

On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention.

The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, a charging terminal for a stereo terminal according to a preferred embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 shows a charging system to which a charging dongle is applied according to a preferred embodiment of the present invention. Figure 2 shows a functional block diagram of the charging dongle of Figure 1; Fig. 3 shows the configuration of the connecting portion of Fig. 2. Fig. DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, in order to clarify the gist of the present invention, a description of what has been conventionally known will be omitted or simplified.

1 and 2, a voice generated in the mobile device 100 through the connection unit 210 and the connection unit 210 connected to the stereo terminal 110 of the mobile device 100, And a power supply unit 220 that receives the signal current and provides the received voice signal current to the external device 300. [ At this time, the external device 300 can use the supplied voice signal current as a power source.

The mobile device 100 may include a smart phone, a tablet PC, a netbook, a smart PC, and the like, and may include a stereo terminal 110 having mobility in information communication. Here, the stereo terminal 110 is an electrical terminal for transmitting a sound wave that is analog or digital in the mobile device 100 to the outside, and the configuration of the stereo terminal 110 is connected to the connection part 210 of the present invention It can be formed irrespective of what kind of shape it can be. The stereo terminal 110 may have at least one channel that provides a power or control signal to the outside as an electrical signal.

The charging dongle 200 may include a connection unit 210, a power supply unit 220, and a control signal processing unit 230.

The connection unit 210 may be connected to the stereo terminal 110 to receive a voice signal current generated in the mobile device 100 and provide the voice signal current to the power supply unit 220. 3, the connection unit 210 corresponds to a potential difference between the positive electrode (+) and the reference electrode (GND) of the stereo terminal 110 of the mobile device 100. In this case, And a second channel for receiving a control signal corresponding to a potential difference between the negative electrode (-) and the reference electrode (GND) of the stereo terminal 110 of the mobile device 100 . On the contrary, the first channel receives the control signal corresponding to the potential difference between the positive electrode (+) and the reference electrode (GND), and the second channel receives the control signal corresponding to the potential difference between the negative electrode (-) and the reference electrode (Not shown). By receiving the voice signal current and the control signal of the mobile device 100 as described above, power is supplied to the external device 300 and the external device 300 is controlled by the control signal received from the mobile device 100 .

The power supply unit 220 may receive the voice signal current through the connection unit 210 and may process the received voice signal current as it is or in a predetermined manner and provide it to the external device 300. At this time, the external device 300 can use a voice signal current provided by the power supply unit 220 as a power source. The power supply unit 220 may convert the voice signal current output from the stereo terminal 110 into a usable form for the external device 300 and provide the same to the external device 300. [ When the strength, tone, and height of a sound source reproduced in the mobile device 100 are irregular, the magnitude of the amplitude of the voice signal current, the difference in the waveform, and the frequency of the frequency are also irregular so that the power supply unit 220, The charging of the external device 300 to the external device 300 may become unstable. Therefore, it is preferable to fix the voice signal current to a constant waveform using a smoothing circuit and a rectifying circuit including a diode, a capacitor, a resistor, a transistor, and the like. Also, since the voice signal current is very small, it is preferable to amplify the voice signal current using an analog or digital device so that the voltage / current value required by the device of the external device 300 can be applied. The smoothing / rectifying / amplifying circuit is a well-known technology, and a detailed description thereof will be omitted. In an embodiment, the element for implementing the smoothing, rectifying and amplifying circuit may be a single-chip system for downsizing the size of the void used in the present invention.

In addition, the power supply unit 220 may have its own energy storage device. That is, an energy storage device such as a capacitor may be separately provided in the power supply unit 220 to allow self-charging through the voice signal current of the mobile device 100. Here, the charged energy can be used in various forms. For example, a driving power source for OP-AMP for amplifying a voice signal current, and may be a power source for driving an LED or the like for indicating the charging state of the external device 300. [

The audio signal current may correspond to a sound source including a section having a predetermined sound at a predetermined period in a predetermined range. That is, the voice signal current may have a constant period and a certain amplitude in a section having a constant tone at a predetermined cycle. As described above, since the audio signal current may have irregular waveforms depending on the type of the sound source reproduced in the mobile device 100, the sound source itself reproduced in the mobile device 100 is used as a predetermined stable waveform. The element for processing the voice signal current on the power supply unit 220 or the external device 300 can be lightened or miniaturized by using a voice signal current having a constant period and a constant amplitude.

2 is a block diagram of a mobile terminal according to another embodiment of the present invention. The mobile terminal 100 includes a connection unit 210 and a connection unit 210. The connection unit 210 is connected to the stereo terminal 110 of the mobile device 100, And a power supply unit 220 for receiving the current and providing the received voice signal current to the external device 300. The power supply unit 220 provides the control signal received from the mobile device 100 to the external device 300 in a predetermined manner The external device 300 may be controlled by the control signal processing unit 230 according to a control signal.

The control signal processing unit 230 receives the control signal, which is separately output from the voice signal current in the mobile device 100, and provides the control signal to the device of the external device 300. That is, the power supply unit 220 and the control signal processing unit 230 may be realized simultaneously by receiving a voice signal current in the first channel of the connection unit 210 and a control signal in the second channel. When an infrared (IR) sensor is used as an embodiment of the external device 300 apparatus, an application that can be executed in the mobile device 100 can interoperate with an infrared (IR) sensor. That is, the control signal processing unit 230 receives the control signal from the mobile device 100 and transmits the control signal to the infrared device so that the mobile device 100 can be used as an infrared remote controller, a thermometer, an illuminometer, or the like according to a driving application. At this time, the infrared sensor can receive power through the first channel of the connection unit 210.

As described above, the external device 300 can be a device (ex: a remote controller, an infrared sensor, a PPT laser pointer, etc.) driven by a small power source. However, it should be premised that the charging terminal can be connected to the stereo terminal charging dongle of the present invention by wire.

It will be apparent to those skilled in the relevant art that various modifications, additions and substitutions are possible, without departing from the spirit and scope of the invention as defined by the appended claims. The appended claims are to be considered as falling within the scope of the following claims.

100: Mobile devices
110: Stereo terminal
200: Charging dongle for stereo terminal
210:
220: Power supply
230: control signal processor
300: External device

Claims (5)

A connection unit connected to a stereo terminal of the mobile device; And
A power supply unit for receiving a voice signal current corresponding to a playback sound source reproduced with an irregular waveform from the mobile device through the connection unit and converting the received voice signal current into a DC current using a smoothing circuit and a rectifying circuit, - the external device uses the supplied DC current as a power source. The method according to claim 1,
The power supply unit,
Converts the audio signal current output from the stereo terminal into a usable form for the external device, and provides the audio signal current to the external device. delete The method according to claim 1,
Further comprising a control signal processor for controlling the external device in accordance with the control signal by providing a control signal received from the mobile device to the external device in a predetermined manner, . 5. The method of claim 4,
The connecting portion
A first channel for receiving a voice signal current corresponding to a potential difference between a positive electrode and a reference electrode of a stereo terminal of the mobile device;
And a second channel for receiving a control signal corresponding to a potential difference between the negative electrode of the stereo terminal and the reference electrode of the mobile device.

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