KR20010008754A - Keyboard apparatus of mobile communication terminal - Google Patents

Abstract

PURPOSE: An external keyboard apparatus of a mobile communication terminal is provided to easily input and transmit wanted characters by using an additional keyboard connected with the mobile communication terminal at low prices. CONSTITUTION: An MSM(11) controls each part of a mobile communication terminal(10). A memory(12) stores data by the control of the MSM(11). A display part(13) displays the current state. A key pad(14) input signals to the MSM(11). A character input key(21) inputs the characters. A storing key(22) stores the characters input by the character input key(21). A connector is installed in the outside of the terminal for connecting the terminal(10) with a keyboard(20).

Description

External keyboard device of mobile communication terminal {Keyboard apparatus of mobile communication terminal}

The present invention relates to a mobile communication terminal, and more particularly, to an external keyboard device of a mobile communication terminal to connect a separate keyboard to the mobile communication terminal so that characters can be easily input.

Recently, mobile communication terminals such as PCS have been developed with the aim of miniaturization, light weight, and extended use time.

Particularly, in the miniaturization part, a terminal having a size small enough to fit in a pocket is provided.

However, as the mobile communication terminal is made smaller, the size of the keyboard is also reduced, which makes it difficult for users to press buttons.

In addition, a text message transmission service using a mobile communication terminal is actively performed, and recently, a service is provided to use the Internet, which makes it difficult to transmit a text using a keyboard of a miniaturized mobile communication terminal.

For example, the number of buttons on the terminal is limited to 3 × 4 = 12, so it is not easy to transmit texts by processing consonants and vowels in one button.

Of course, a mobile communication terminal such as a PCS is connected to a PC or a notebook for wireless data communication, but if a user wants to send only a simple text message, such a means of price or activity has many limitations.

The present invention has been made to solve such a conventional problem, an object of the present invention, by connecting a character input keyboard to the mobile communication terminal to use a mobile terminal to easily enter and transmit characters using such a terminal An external keyboard device of a terminal is provided.

1 is a block diagram showing a state in which a keyboard is connected to the terminal of the present invention

2 is a block diagram of a keypad in FIG.

Figure 3 is a view showing the keyboard layout of the keyboard in the present invention

<Explanation of symbols for main parts of drawing>

10: Terminal 11: MSM

12: Memory 13: display unit

14: keypad 20: keyboard

21: Character input key 22: Save key

In order to achieve the above object, the present invention is characterized in that a keyboard having a character key and a storage key is connected to a connector of a terminal so that a character key is directly input to the MSM of the terminal.

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

1 is a configuration diagram of the present invention, 10 represents a terminal, and 20 represents a keyboard external to the terminal 10.

The terminal 10 includes an MSM 11 for controlling each unit, a memory 12 in which data is stored under the control of the MSM 11, a display unit 13 indicating a current state, and the MSM 11. It consists of a keypad 14 for inputting a signal.

The keyboard 20 is composed of a character input key 21 for inputting a character and a storage key 22 for storing a character input by the character input key 21.

2 is a detailed configuration diagram of the keypad 14, in which the connector 31 has a plurality of function switches SW1-SW6 such as SEND, MENU, END, RCL, CLR, STO, and 0 to 9, #, * and the like. Numeric keys (SW7-SW18) are connected.

Referring to the operation of the present invention configured as described above is as follows.

First, FIG. 2 is an internal circuit diagram of the keypad 14 included in the mobile communication terminal 10. In the connector 31, since the KYPD line directly enters the MSM 11, in practice, the SW1-SW18 array is directly MSM. It is like connected with (11).

Therefore, when the keyboard 20 is used outside the terminal 10, a connector such as the connector 31 is installed outside the terminal to connect the terminal 10 and the keyboard 20.

Figure 1 shows a schematic diagram of the connection between the MSM 11 and the keyboard 20 of the terminal 10 according to the present invention. In FIG. 2, since there are 10 KYPD lines, a maximum of 5 x 5 matrices, that is, 25 switches In the schematic, the number is 18, which is related to the size of the terminal.

Therefore, Korean consonants and vowels cannot be represented by 18 switches, and SW1-SW6 is a function key, so only 12 switches can be used as SW7-SW18.

For this reason, it is not easy to input even when the characters are both represented because the keypad is too small.

In general, when the terminal 10 arranges characters, the consonants and vowels are displayed on the LCD screen, and then the cursors are selected at the consonants or vowel positions to be used as up / down keys, and then the selection method is performed one by one.

In the present invention, since there are 10 KYPD lines in FIG. 2, up to 5 x 5 matrices, that is, 25 key buttons can be made as shown in FIG.

Here, the keyboard layout or input mode of the keyboard 20 may vary according to the software, so the character input method of the keyboard 20 and the terminal 10 is different so that the keyboard 20 cannot be directly connected to the terminal 10 and used. .

In order to solve this problem, in the present invention, a program recognizable on the keyboard 20 is input to the memory 12 of the terminal 10 in advance.

When the user needs to write a sentence, the user selects a menu called 'character writing' from the menu, and the program for the keyboard 20 mode operates.

In such a state, when a character is input and the storage key 22 on the keyboard 20 is pressed, the character input mode is changed to the keypad 14 form of the terminal 10 so that there is no problem in use.

In this method, only a program for the keyboard 20 needs to be prepared, and an operation procedure of the keyboard 20 will be described by way of example.

After the connector is connected, a message composition item is selected from the menu of the terminal 10. At this time, the keyboard layout mode is changed from the keypad 14 to the keyboard 20.

In this state, the character is input and saved, and the terminal 10 connects to a call destination and transmits the message.

On the other hand, the structure of the keyboard 20, only the PCB and the button bar to enter the inner package, the connection line, the connector only need.

Therefore, according to the present invention, it is possible to provide the keyboard 20 at a low price to users who use only text messages.

As described above, the present invention can connect the keyboard 20 to the connector of the terminal 10 to easily input the desired characters to the terminal 10 through the keyboard 20. There is an effect that can resolve the inconvenience that had to be used.

Claims (1)

The MSM 11 controlling each unit, the memory 12 in which data is stored by the control of the MSM 11, the display unit 13 indicating a current state, and a signal for inputting a signal to the MSM 11 A terminal 10 having a keypad 14, The keyboard 20 includes a character input key 21 for inputting a character and a storage key 22 for storing a character input by the character input key 21. External keyboard device of a mobile communication terminal, characterized in that configured to input characters to the MSM (11) of the terminal (10).