KR20040006749A - A mobile phone of two way mike and speaker system - Google Patents

Abstract

PURPOSE: A mobile communication terminal capable of an upper and lower bidirectional call is provided so that a user talks with object in upper and lower directions of the mobile communication terminal by switching a voice signal input/output to speakers and microphones according to the upper and lower directions. CONSTITUTION: The first and second speakers(281,282), installed at one sides of upper and lower portions of a mobile communication terminal, output a voice signal transmitted from a voice signal processing unit(270). The first and second microphones(283,284), installed at one sides of upper and lower portions of the mobile communication terminal, receive a voice signal from a user. A switching unit(280) switches a voice signal input/output path to the first and second speakers(281,282) and the first and second microphones(283,284). A gravity sensor(260) senses upper and lower position directions of the mobile communication terminal through a gravity direction, and outputs the sensed result. A CPU(210) controls the switching unit(280) according to the upper and lower directions measured in the gravity sensor(260) to selectively switch the voice signal input/output path to the first and second speakers(281,282) and the first and second microphones(283,284).

Description

A mobile phone of two way mike and speaker system}

The present invention relates to a mobile communication terminal, and in particular, by switching a voice signal input / output of a speaker and a microphone according to the up / down direction of the terminal in the mobile communication terminal so that the user can talk in both up and down directions of the terminal. The present invention relates to a mobile communication terminal capable of up and down two-way communication.

1 is a plan view showing the front of a conventional mobile communication terminal.

As shown, a typical mobile communication terminal 100 is a speaker (SP) 101 that is located on the top of the terminal body to output the voice information transmitted from the call partner,

A microphone (MIC) 102 positioned under the portable telephone for receiving voice information from a user during a call;

A key input unit (Key-Pad) 103 positioned at the center of the portable telephone body and having a function key for receiving terminal control and text information or a telephone number from a user, and a plurality of numeric keys;

The display unit 104 is positioned at an upper end of one side of the key input unit and displays a terminal operation operation process and character information input to the key input unit 103.

In the above-described conventional mobile communication terminal 100, the user had to adjust the speaker 101 to be in close contact with the ear and the microphone 102 to be placed in the mouth in order to talk to a third party.

However, in general, a terminal user frequently receives a call by selecting a call button or opening a flip or a folder of the terminal while turning his / her phone upside down in a hurry to answer the call. In this case, the speaker of the terminal 100 Since the positions of the 101 and the microphone 102 are fixed, the call becomes impossible.

For this reason, most users of the terminal 100 have an inconvenience of receiving a call after clearly confirming the upper and lower portions of the terminal 100 before receiving the call.

Disclosure of Invention An object of the present invention is to provide a mobile communication terminal capable of up and down two-way communication.

To this end, the present invention provides a key input unit for receiving a control command and data for controlling the operation of the terminal through a central processing unit performing overall operation operation of the terminal, and input / output voice signals using a microphone and a speaker according to the control command. A voice signal processor to perform, a radio frequency transmitter / receiver to perform radio frequency signal transmission / reception processing according to the operation control of the central processor, a display unit to display the operation process of the terminal by the central processor, key data and A mobile communication terminal comprising a memory unit for storing data such as a terminal operating algorithm, the mobile communication terminal comprising: a first and a second side of the mobile communication terminal, respectively, which output voice signals transmitted from the voice signal processor; A second speaker and an upper / lower one side of the mobile communication terminal First and second microphones installed to receive voice signals from a user, a switching unit for switching voice signal input / output paths to the first and second speakers and the first and second microphones, and a gravity direction. A gravity sensor for sensing the up / down position direction of the terminal and outputting a detection result, and the first and second speakers and the first and second microphones according to the up / down direction of the terminal measured by the gravity sensor And a central processing unit for controlling to selectively convert the voice signal input / output path of the switching unit.

1 is a plan view showing a front of a conventional mobile communication terminal.

2 is a block diagram showing the internal structure of a mobile communication terminal according to an embodiment of the present invention.

3 is a plan view showing the front of the mobile communication terminal according to an embodiment of the present invention.

※ Explanation of code about main part of drawing ※

100: normal mobile communication terminal

101: speaker (SP) 102: microphone (MIC)

103: Key-Pad 104 Display

200: mobile communication terminal according to the present invention

210: central processing unit 220: radio frequency transmitting and receiving unit

221: antenna 230: key input unit

240: display unit 250: memory unit

260: gravity sensor 270: voice processing unit

280: switching unit

281: first speaker SP1 282: second speaker SP2

283: first microphone (MIC1) 284: second microphone (MIC2)

Hereinafter, with reference to the accompanying drawings the present invention will be described in detail.

The mobile communication terminal 200 according to the present invention for achieving the above object is configured as shown in Figure 2, the central processing unit 210 performs the overall operation control of the mobile communication terminal and the gravity sensor 260 The audio signal input / output path set through the switching unit 280 is controlled according to the direction of the terminal measured as.

The radio frequency transmitter / receiver 220 performs various data transmission / reception with the base station and converts the digital signal transmitted from the central processing unit 210 into a radio signal or transmits the signal to the antenna 221 for transmission to the antenna 221. Digital demodulation is performed to transmit the radio signal to the central processing unit 210.

The key input unit 230 includes a plurality of function keys and numeric keys and generates key data corresponding to a key selected by a user and transmits the generated key data to the central processing unit 210.

The display unit 240 displays the terminal operation state by visually displaying the information signal generated in the terminal operation operation process and the key data input through the key input unit 230 according to the operation control of the central processing unit 210.

The memory unit 250 is controlled by the central processing unit 210 and stores key data generated by an algorithm for operating a terminal operation and a terminal operating state or input by a user to the key input unit 230.

The gravity sensor 260 detects the up / down position direction of the terminal through the gravity direction and transmits the detection result to the central processing unit 210.

The voice processing unit 270 demodulates the digital voice data transmitted from the central processing unit 210 to be output through the first or second speakers 281 and 282, and the voice signal input through the first or second microphones 283 and 284. Is modulated to convert digital voice data.

The switching unit 280 is operation controlled by the central processing unit 210, and outputs a voice signal from the voice processing unit 270 to the first or second speakers 281 and 282 and to the first or second microphones 283 and 284. Set the audio signal input path exchange.

The mobile communication terminal 200 capable of a two-way call according to the present invention configured as described above will be described in detail with reference to FIG. 3.

If a pair of speakers and a microphone are installed at both ends of the mobile communication terminal 200, the first speaker 281 and the second microphone 284 are disposed on the upper portion of the display unit 240 of the terminal as shown in FIG. The second speaker 282 and the first microphone 283 are installed at the bottom of the key input unit 230 of the terminal.

Example 1

In the upper position call:

When the user receives the incoming call or makes an outgoing call using the mobile communication terminal 200, the user lifts the display unit 240 and the key input unit 230 to a position where the mobile communication terminal 200 moves downward. The gravity sensor 260 of 200 detects the terminal position and transmits the detected position information to the central processing unit 210.

The central processing unit 210 controls the switching unit 280 according to the position information measured by the gravity sensor 260 to set the audio signal output path to the first speaker 281, and set the voice signal input path to the first microphone. Set to 284 to enable the call.

Example 2

In the lower position call:

When the user receives the incoming call or makes an outgoing call using the mobile communication terminal 200, the user lifts the key input unit 230 and the display unit 240 to a position where the mobile communication terminal 200 moves downward. The gravity sensor 260 of 200 detects the terminal position and transmits the detected position information to the central processing unit 210.

The central processing unit 210 sets the voice signal output path controlling the switching unit 280 to the second speaker 282 according to the position information measured by the gravity sensor 260, and sets the voice signal input path to the second microphone. Set to 283 to enable the call.

As described above, the present invention controls the voice signal input / output path through the microphone and the skipper according to the direction of the terminal during the call of the mobile communication terminal, so that the call is possible regardless of the up / down direction. Eliminating the inconvenience of checking the lower position one by one has the effect of improving the convenience of the call.

Claims (2)

A key input unit for receiving a control command and data for controlling the operation of the terminal through a central processing unit for performing the overall operation of the terminal from the user, and a voice signal processing unit for performing voice signal input / output using a microphone and a speaker according to the control command And a wireless frequency transmitting / receiving unit for performing wireless frequency signal transmission / receiving processing according to the operation control of the central processing unit, a display unit displaying the operation processing process of the terminal by the central processing unit, key data and a terminal operating algorithm, and the like. In the mobile communication terminal comprising a memory unit for storing data, First and second speakers installed on upper and lower sides of the mobile communication terminal to output a voice signal transmitted from the voice signal processor; First and second microphones installed on upper and lower sides of the mobile communication terminal and receiving a voice signal from a user; A switching unit for switching a voice signal input / output path to the first and second speakers and the first and second microphones; A gravity sensor that detects the up / down position of the terminal through the direction of gravity and outputs the detection result; A central processing unit for controlling the switching unit to selectively convert the voice signal input / output paths to the first and second speakers and the first and second microphones according to the up / down direction of the terminal measured by the gravity sensor; A mobile communication terminal capable of a two-way call, characterized in that comprising a. The method according to claim 1, And the first and second speakers and the first and second microphones are provided in pairs on the upper and lower portions of the mobile communication terminal, respectively.