KR20060017085A - Mobile communication terminal having one jack for supporting earphone function and image transmitting function - Google Patents

Abstract

The present invention relates to a mobile communication terminal. More particularly, the present invention relates to a mobile communication terminal that supports an ear function and a video function that can be provided with a TV viewing function using only one connection port provided at one side of the mobile communication terminal. .

In the mobile communication terminal supporting the ear function and the video function according to the present invention in the same jack, the ear jack having the ground terminal, the audio output terminal, and a combined terminal that also functions as a microphone signal and the video output function arranged on the same axis, the ear jack A grounding terminal, an audio output terminal, and a connection port arranged with a grounding line, an audio output line, and a combined line, which are respectively in contact with the grounding terminal, and a switch unit for switching the combined line to any one of the microphone signal line and the image output line. Provided is a mobile communication terminal supporting the ear function and the video function characterized by the same jack.

Therefore, the present invention can structurally downsize the mobile communication terminal, and can use the TV function with only one connection port provided at one side of the mobile communication terminal, thereby improving the design and easily and simply watching TV without incurring a large cost. There is an effect that can be given.

Mobile communication terminal, ear jack, video jack, TV, CPU, image processing IC

Description

Mobile communication terminal supporting both video and video functions using the same jack {MOBILE COMMUNICATION TERMINAL HAVING ONE JACK FOR SUPPORTING EARPHONE FUNCTION AND IMAGE TRANSMITTING FUNCTION}             

Figure 1a is a structural diagram of the ear jack and TV video jack used in the prior art

1B is a perspective view of a mobile communication terminal connection port which is conventionally used;

FIG. 2 is an internal circuit diagram of the operation of the ear jack and the TV video jack shown in FIGS. 1A and 1B;

Figure 3a is a structural diagram of an ear jack according to an embodiment of the present invention

3B is a perspective view of a mobile communication terminal connector according to an embodiment of the present invention;

4 is an internal circuit diagram of the operation of the ear jack and the mobile communication terminal illustrated in FIGS. 3A and 3B;

5 is a flowchart illustrating operations of a mobile communication terminal according to an embodiment of the present invention.

*** Explanation of main parts of drawing ***

10; mobile communication terminal 20; connection port

30; Ear jack 31; Combined terminal

32; first audio output terminal 33; second audio output terminal

34; ground terminal 40; switch

CPU 60; Image Processing IC

70; dual use 71; microphone signal line

72; video output line 80; first audio output line

81; second audio output line 90; ground line

The present invention relates to a mobile communication terminal, and more particularly, it is possible to provide a TV viewing function with only one connection port of one side of the mobile communication terminal, and the ear function and video function for miniaturizing the mobile communication terminal to the same jack. The present invention relates to a supporting mobile communication terminal.

In general, mobile terminals range from home to portable, and are often mobile phones, cellular phones, cellular phones, personal communications services phones (PCS) phones, mobile telephones, personal cellular phones, and wireless communications. Mobile communication terminals, which are widely applied to terminals (Wireless Communication Terminal), WAP (Wireless Application Protocol) phones, PDAs (Personal Digital Assistance) terminals, and IMT2000 (International Mobile Telecommunications 2000) terminals, are carried by individuals, It is a very convenient communication tool that keeps you close to your daily life, such as making voice calls, simultaneous voice and video calls, sending and receiving text messages, connecting to the Internet, and sending and receiving e-mails. It is becoming widespread, the speed of development is very fast, and the aspect of development is also diversified.

In short, the mobile communication terminal has been developed to be easy to carry, more convenient and versatile because it is frequently carried and used in everyday life. In order to be able to receive even when both hands are used, such as driving a car or driving a car, a connection terminal for an earphone, that is, an ear jack, is provided in the mobile communication terminal so that the earphone jack can be connected and used.

However, in recent years, as networks providing information rapidly develop, there is a demand for development of a composite wireless communication terminal in which various functions are added in addition to a communication function for delivering voice.

Accordingly, a portable TV phone capable of watching TV in addition to the voice transmission / reception function of the composite wireless communication terminal has been developed. In general, the audio signal can be watched by using an ear jack and a video signal such as a TV screen by adding a separate video jack. It provides a function.

FIG. 1A is a structural diagram of a conventionally used ear jack and a TV video jack, FIG. 1B is a perspective view of a conventional mobile communication terminal connection port, and FIG. 2 is an operation inside of the ear jack and TV video jack shown in FIGS. 1A and 1B. It is a circuit diagram.

1A to 2, although a TV video jack 120 is provided below the ear jack 110, which is conventionally used, the ear jack 110 and the TV video jack 120 are separated from each other. On one side of the terminal 100, the connection port 101, 102 should be formed so that the ear jack 110 and the TV video jack 120 can be inserted.

Here, the ear jack 110 is a microphone signal terminal 111, a pair of stereo audio output terminals 112 and 113, and the ground terminal 114 is disposed, these are controlled by the CPU 130 and input and Is configured to be output.

In addition, the TV video jack 120 disposed under the ear jack 1 is provided with a ground terminal 121 and a TV video signal terminal 122 to be input and output by a separate image processing IC 140. To be controlled.

However, such a structure is disadvantageous in terms of structural and costly to reverse the trend of miniaturization of the product.

Accordingly, an object of the present invention is to provide a mobile communication terminal supporting ear and video functions by using the same jack to structurally downsize the mobile communication terminal.

Another object of the present invention is to provide a mobile communication terminal that supports the ear function and the video function with the same jack that can perform a TV viewing function and improve the design with only one connection port provided on one side of the mobile communication terminal. .

Still another object of the present invention is to provide a mobile communication terminal supporting ear and video functions using the same jack, which can easily and simply provide a TV viewing function to a mobile communication terminal without incurring a large cost.

According to an embodiment of the present invention for achieving the above object, an ear jack having a ground terminal, an audio output terminal, and a combined terminal which also functions as a microphone signal and an image output function are arranged on the same axis, a ground terminal of the ear jack, and an audio. And an output terminal, and a connection port in which a ground line, an audio output line, and a combined line, which are in contact with the combined terminal, respectively, are arranged, and a switch unit for switching the combined line to any one of the microphone signal line and the image output line. Provides a mobile communication terminal that supports the same video and video functions.

Here, when the mobile communication terminal receives a video signal, the switch unit is configured to switch the combined line to the video output line.

Also. The audio output terminal is a stereo audio output terminal, and comprises a first audio output terminal and a second audio output terminal.

On the other hand, when the incoming signal is received by the mobile communication terminal, the switch unit is configured to switch the combined line to the microphone signal line.

Hereinafter, with reference to the drawings will be described in detail. However, these drawings are for illustrative purposes only and the present invention is not limited thereto.

Figure 3a is a structural diagram of an ear jack according to an embodiment of the present invention, Figure 3b is a perspective view of a mobile terminal connection port according to an embodiment of the present invention, Figure 4 is a mobile jack and the ear shown in Figures 3a and 3b Internal circuit diagram of the operation of the communication terminal.

3A to 4, unlike the ear jack 110 which is conventionally used, the ear jack 30 connected to the mobile communication terminal according to the present invention has three or more terminals, that is, a ground terminal 34, first and The second audio output terminal 32, 33 and the combined terminal 31 which also functions as a microphone signal and an image output function are arranged in one line on the same axis, so that one connection port 20 formed at one side of the mobile communication terminal 10 is provided. You will be connected.

In addition, the connection port 20 inside the mobile communication terminal 10 according to the present invention has a combined terminal 31 having both a microphone signal and a video output function, first and second audio output terminals 32 and 33, and a ground terminal. When 34 is connected, three or more connecting lines, for example, a grounding line 90, first and second audio output lines 80 and 81, and a double line 70 are arranged to be in contact with the terminals, respectively. .

At this time, when the ear jack 30 is connected to the mobile communication terminal 10, the above-mentioned combined terminal 31, the first and second audio output terminals 32, by the CPU 50 provided in the terminal 10, 33) is controlled to be input and output.

Here, the audio output terminal is a stereo audio output terminal, typically a right audio output terminal represented by 'R' and a left audio output terminal represented by 'L', that is, the first and second audio output terminals 32 and 33. It is preferred to be configured.

In addition, in the case of the switch unit 40 disposed inside the mobile communication terminal 10, the common line 70 of the connection line is normally switched to be connected to the microphone signal line 71, the mobile communication terminal 10 When the user wants to watch a TV (not shown) by operating as a TV receiving function (TV viewing function), it is configured to switch so that the combined line 70 of the connection line is connected to the image output line 72.

As described above, when the combined line 70 is connected to the image output line 72, the input and output of the image signal transmitted from the TV is controlled by the image processing IC 60 inside the mobile communication terminal 10. .

5 is an operation flowchart of a mobile communication terminal according to an embodiment of the present invention.

Mode that is basically set in the mobile communication terminal 10 according to the present invention is that the switch unit 40 is switched so that the combined line 70 is connected to the microphone signal line 71, the user wants to watch TV In this case, the combined line 70 is configured to switch to be connected to the image output line 72.

First, the user selects whether to use the TV reception function of the mobile communication terminal 10. When the TV viewing function is not used, the combined line 70 of the connection line is switched to be connected to the microphone signal line 71. It will wait in the state.

In this case, the user may input and set the mobile communication terminal 10 as a TV viewing function by adding a TV watching button (not shown) to a key input unit (not shown) provided in the terminal 10. It is also possible to select among menus displayed on the LCD (not shown) provided in the terminal 10 by pressing a button.

When the TV receiving function is selected from the key input unit, the switch unit 40 switches the combined line 70 to be connected to the image output line 72.

When the combined line 70 is switched to be connected to the image output line 72, the video signal transmitted from the TV is output through the image processing IC 60, and the audio signal transmitted from the TV is processed by the CPU 50. And output.

Accordingly, the TV image is output to the LCD under the control of the image processing IC 60, and the audio signal is output through the speaker (not shown) under the control of the CPU 50 so that the user can watch TV. do.

Here, when the switch unit 40 is switched so that the combined line 70 is connected to the image output line 72, it is preferable to have a step of asking the user whether to watch TV.

Subsequently, when the user wants to stop watching TV, the TV reception function of the mobile communication terminal 10 is stopped by pressing a specific button (TV viewing function button, etc.) among the buttons provided in the key input unit (not shown). Accordingly, the switch unit 40 switches the combined line 70 to be reduced and connected to the microphone signal line 71 from the image output line 72.

Here, when the mobile communication terminal 10 is operating the TV receiving function, when the incoming signal is received by the terminal 10, the audio and video signals automatically transmitted from the TV even if the user does not directly stop the TV receiving function. A control unit (not shown) for stopping the output and controlling the switch unit 40 to switch the combined line 70 to be connected to the microphone signal terminal 71 is preferably included.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the exemplary embodiments described above are to be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the following claims rather than the detailed description, and the meaning and scope of the claims and All changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

As described in detail above, the mobile communication terminal supporting the ear function and the video function by the same jack according to the present invention has the effect of miniaturizing the mobile communication terminal structurally.

In addition, the present invention has the effect of improving the design since the TV viewing function can be used as one connection port provided on one side of the mobile communication terminal.

In addition, the present invention has an effect that can be easily and simply given TV watching function to the mobile communication terminal without incurring a large cost.

Claims (4)

An ear jack with a ground terminal, an audio output terminal, and a combined terminal which also functions as a microphone signal and a video output arranged on the same axis, A grounding port, a voice output line, and a combined line, each of which is in contact with a ground terminal, a voice output terminal, and a combined terminal of the ear jack, and And a switch unit for switching the combined line to any one of the microphone signal line and the image output line. The method of claim 1, And the switch unit switches the combined line to the video output line when the mobile communication terminal receives a video signal, and supports the ear function and the video function by the same jack. The method of claim 1, The audio output terminal is a stereo audio output terminal, the mobile communication terminal supporting the ear function and the video function to the same jack, characterized in that consisting of the first audio output terminal and the second audio output terminal. The method of claim 1, And the switch unit switches the combined line to the microphone signal line when the incoming signal is received by the mobile communication terminal.

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