KR100691815B1 - Method and device for inputting key by using motion sensor - Google Patents

Abstract

A key input method using a motion sensor and a device therefor are provided to recognize a Morse code corresponding to a motion signal recognized by the motion sensor, and to recognize a key value corresponding to the Morse code to input the recognized key value. An input unit(110) and a motion sensor unit(120) are equipped. A Morse code recognizer(130) recognizes a Morse code corresponding to a motion signal generated from the motion sensor unit(120) according to a key input command inputted through the input unit(110). A storage(140) stores a Morse key value table. A key value recognizer(150) recognizes a key value corresponding to the Morse code recognized by the Morse code recognizer(130) by using the Morse key value table.

Description

Method and device for inputting key using motion sensor {Method and device for inputting key by using motion sensor}

1 is a view showing a mobile communication terminal having a motion sensor according to an embodiment of the present invention.

2 is a functional block diagram of a mobile communication terminal for performing a key input using a motion sensor according to an embodiment of the present invention.

3 to 6 show another morse key value table in a preferred embodiment of the present invention.

7 is a view showing a process of performing a key input using a motion sensor in a mobile communication terminal according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: mobile communication terminal

101: enter button

103: display device

110: input unit

120: motion sensor

130: Morse recognition unit

140: storage unit

150: key value recognition unit

160: display unit

170; Control

The present invention relates to key input, and more particularly, to a key input method and apparatus using a motion sensor.

One of the most used electronic devices in recent years is a mobile communication terminal such as a mobile phone such as PCS and PDA. With the recent rapid development of electronic engineering and communication engineering, mobile communication terminals have various functions. That is, with the rapid development of wireless communication and data communication technology, people can use not only voice calls but also Internet access, video communication and video message transmission using mobile communication terminals. In addition, due to the rapid dissemination of mobile communication terminals, mobile communication terminals have become an essential means of communication in modern life, such as a large amount of communication occurring in human relationships through mobile communication terminals.

As a method of inputting data using the mobile communication terminal, first, a method of directly inputting a plurality of key buttons on a keypad of a mobile communication terminal and second, an electronic data input tool such as an electronic pen is used. There is a method of writing data directly into a liquid crystal display (LCD) of a mobile communication terminal using a third method and a third method of inputting voice data into a voice input device of a mobile communication terminal.

Among these methods, the data input method using the electronic data input tool is relatively widespread. However, since it requires a large LCD screen, it is not suitable for a mobile phone with a small LCD screen and has a relatively large LCD screen. It is mainly used for Digital Assistants.

In addition, the method of inputting voice data into the voice input device is difficult to accurately identify and recognize the input voice data at the current voice recognition technology level. In addition, since a high specification system is required to support a smooth voice recognition speed, it is difficult to apply universally to a mobile communication terminal.

Accordingly, a method of directly pressing a key button is most widely used as a method for inputting data using a mobile communication terminal.

In more detail, in the method of inputting numeric data by using a key button of a mobile communication terminal, one key button is assigned to each number to be input, so that it can be input relatively easily. However, as the functions of mobile communication terminals are diversified and developed, it is more frequent to input text data than numeric data to mobile communication terminals. For example, when a text message is sent to the other party through a mobile communication terminal or a content to be memorized is input to the mobile communication terminal during a call.

As a method of inputting text data in a mobile communication terminal, select a text input mode by operating a mode selection key of the mobile communication terminal, and then display Korean alphabet or English alphabet, special characters and symbols, etc. displayed on the LCD screen. There is a method of moving to a character to be input by using a cursor moving key and inputting character data by pressing a character selection key. At this time, the selected character is displayed on the LCD screen of the mobile communication terminal.

As another method of inputting character data, the most common method currently includes one to several Hangul alphabets and English alphabets assigned to each key button on the keypad. There is a method of inputting character data through an operation process such as pressing over. Of course, the selected character is also displayed on the LCD screen of the mobile communication terminal.

However, such a method of directly inputting data by pressing a key button of the conventional mobile communication terminal has a disadvantage in that it is not suitable for inputting data due to the small size of the key button in the mobile communication terminal. That is, there is a problem in that an input error such as a key button is not pressed well or two or more key buttons are pressed at the same time while inputting data by pressing a key button. In addition, there is a problem that the key button is not normally pressed because foreign matter is stuck or attached to the gap in which the key button is formed.

In addition, in the conventional mobile communication terminal having a button-type keypad, a mold work is required for each key button, and thus, the manufacturing process of the mobile communication terminal is complicated and the manufacturing cost thereof increases. In addition, due to the fixed area occupied by the keypad, there is a problem in that the size and design of the entire mobile communication terminal are limited.

In addition, the conventional button-type keypad has a problem that the foreign matter is stuck or attached to the gap in which the key button is formed, the key button is not normally pressed.

Accordingly, the present invention has been made to solve the above problems, and provides a key input method and apparatus using a motion sensor that can perform key input using a motion sensor capable of recognizing movement of an electronic device. There is a purpose.

In addition, the present invention has another object to provide a key input method and apparatus using a motion sensor that can increase the sales by reducing the manufacturing cost for the key input means in an electronic device such as a mobile communication terminal.

Other objects of the present invention will become more apparent through the preferred embodiments described below.

According to an aspect of the present invention for achieving the above object, in the electronic device, the input unit; A motion sensor unit; A morse recognition unit recognizing a morse code corresponding to a motion signal generated by the motion sensor unit according to a key input command input through the input unit; A storage unit for storing a morse key value table; And a key value recognizing unit recognizing a key value corresponding to the morse code recognized by the morse recognizing unit using the morse key value table.

Here, the motion sensor unit may generate a motion signal only in a state where the input unit is operated.

In addition, the recognized morse code is recognized as one of one or more dots, dashes, and combinations thereof, and the motion signal corresponding to the dash is continuous for more than a predetermined time or length predetermined by the electronic device. Can be created if moved.

The display apparatus may further include a display unit configured to display information on the morse key value table corresponding to the key input command.

According to another aspect of the invention, in the key input method in an electronic device having a motion sensor, (a) the motion sensor generates a motion signal corresponding to the movement of the electronic device according to the input key input command step; (b) recognizing a Morse code corresponding to the motion signal; And (c) recognizing and inputting a key value corresponding to the Morse code.

Here, step (a) may be performed while the input button receiving the key input command is pressed.

In addition, the step (c) may recognize the key value corresponding to the current input mode and the Morse code using a pre-stored Morse key value table.

In addition, the recognized morse code is recognized as one of one or more dots, dashes, and combinations thereof, and the motion signal corresponding to the dash is continuous for more than a predetermined time or length predetermined by the electronic device. Can be created if moved.

In addition, information about the morse key value table may be displayed in correspondence with the key input command.

Hereinafter, a key input method and apparatus using a motion sensor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings, and in the following description with reference to the accompanying drawings, the same or corresponding configuration regardless of reference numerals. Elements are given the same reference numerals and redundant description thereof will be omitted.

In addition, as an electronic device for performing key input using the motion sensor according to the present invention, a mobile communication terminal such as PCS will be described as an example for convenience of description, but a digital camera, PDA, and gain equipped with a motion sensor will be described. The same applies to the pawn will be apparent through the following description.

1 is a diagram illustrating a mobile communication terminal having a motion sensor according to an exemplary embodiment of the present invention, and FIG. 2 is a diagram of a mobile communication terminal performing key input using a motion sensor according to an exemplary embodiment of the present invention. 3 to 6 are diagrams showing a morse key value table according to a preferred embodiment of the present invention.

Referring to FIG. 1, the mobile communication terminal 100 includes an input button 101 at one side for inputting a key input command for key input. The input button 101 is one input means for inputting a key input command, and input means such as a switching method or a rotation method may be used in addition to the button method. When the input button 101 is pressed once, the key input mode using the motion sensor according to the present invention is executed, and if pressed again, the key input mode may be released. Alternatively, the key input using the motion sensor according to the present invention may be performed only when the input button 101 is pressed.

In addition, the mobile communication terminal 100 includes a display device 103 such as a liquid crystal. The display apparatus 103 performs a function of outputting information corresponding to a key input. Since the display apparatus 103 is apparent to those skilled in the art, detailed description thereof will be omitted.

Although not shown in the figure, a motion sensor is mounted inside the mobile communication terminal 100. Of course, the motion sensor may be mounted to expose some or all of the mobile communication terminal 100 to the outside, but is preferably mounted inside to simplify the installation of a circuit for controlling the motion sensor. As a motion sensor, an acceleration sensor or the like may be used. Since a motion sensor for detecting a motion is still used in a mobile communication terminal 100 having a beat-box function, a detailed description thereof will be omitted.

Hereinafter, a configuration according to the function of the mobile communication terminal 100 according to the present invention will be described with reference to FIG. 2. The mobile communication terminal 100 includes an input unit 110, a motion sensor unit 120, and a morse recognition unit 130. ), A storage unit 140, a key value recognition unit 150, a display unit 160, and a controller 170. Of course, some components (eg, morse recognition unit 130 and key value recognition unit 150, etc.) of the mobile communication terminal 100 are not necessarily implemented in hardware, but may be implemented in a software program. Of course it is.

The input unit 110 may be implemented as an input button 101 as shown in FIG. 1 as a means for receiving a key input command.

When the key input command is input by the input unit 110, the motion sensor unit 120 detects the movement of the mobile communication terminal 100 and generates a motion signal accordingly. When a key input command is input by the user, the motion sensor unit 120 detects a movement (eg, shaking) of the mobile communication terminal 100 and generates a motion signal accordingly. The motion signal corresponds to the time or length at which the mobile communication terminal 100 continuously moves and stops. That is, the motion sensor unit 120 generates a motion signal corresponding to the movement degree (moving time or length) of the mobile communication terminal 100. The motion sensor unit 120 may be composed of one or more motion sensors.

The morse recognition unit 130 performs a function of recognizing a morse code corresponding to a motion signal generated by the motion sensor unit 120. Morse code can be divided into darts and dashes. Therefore, the morse recognition unit 130 recognizes the motion signal according to the case where the mobile communication terminal 100 moves within a predetermined time or length as a dart code. On the contrary, the morse recognition unit 130 recognizes the motion signal according to the case where the mobile communication terminal 100 continuously moves for more than a predetermined time or length by a dash code. Therefore, the morse recognition unit 130 may recognize a morse code of any one of the darts and dashes corresponding to the motion signal generated by the motion sensor unit 120 by detecting the movement.

The storage unit 140 stores a morse key value table that stores a key value corresponding to a morse code (including a combination of Morse codes).

3 to 5, the morse key value table has information on a morse code corresponding to a key value according to Korean, English, numbers, and the like. Here, although the Morse code according to Korean, English, and numbers may be set not to overlap, the Morse code according to Korean, English, and Number may be set so that a separate input mode may be set. That is, the Morse code '-' may have a key value of 'ㅓ' in Korean mode and a key value of 'T' in English mode. Here, the input mode may be set using a mode setting key (not shown) separately provided. For example, the input mode may be set using a menu button. Of course, without having a separate mode setting key, it is possible to set the input mode using a key input method according to the movement of the mobile communication terminal 100 according to the present invention. That is, the specific morse code can be set as the mode setting key value (see FIG. 6). It is also obvious that the input mode corresponding to the software program currently being executed may be set in advance. For example, the numeric input mode may be set in the initial state, and the Korean input mode may be set in advance when the message writing program is executed. Even now, since the method for setting the input mode according to numbers, Korean, English, etc. has been variously implemented in the mobile communication terminal 100, a detailed description of the input mode will be omitted.

In addition, the Morse key value table may further set a function key value for performing a specific function, as shown in FIG. 6, in addition to key values corresponding to characters such as numbers, Korean, and English. The key values shown in FIG. 6 may be, for example, key values corresponding to a menu button, a call button, an end button, and the like provided in the existing mobile communication terminal 100.

The key value recognizing unit 150 performs a function of recognizing a key value corresponding to the morse code recognized by the morse recognizing unit 130 using the morse key value table. That is, when the mobile communication terminal 100 is moved by the user and the Morse code according to the generated motion signal is recognized, the key value recognizing unit 150 searches for the key value in the Morse key value table. To perform. The retrieved key value may be input by the controller 170.

The display unit 160 is display means for displaying information corresponding to the input processed key value as in the display apparatus 103 shown in FIG. In particular, when the key input mode is performed according to the operation of the input unit 110, the display unit 160 may display the Morse key value table stored in the storage unit 140 corresponding to the current input mode (for example, the numeric input mode). Display information about Therefore, the user can check the information on the Morse key value table displayed through the display unit 160, so that the user can confirm the information on the Morse code for the key value to be input, so there is no need to memorize the Morse code at all. The mobile communication terminal 100 can provide a user with convenience according to a key input.

When the key input command is input, the controller 170 detects a movement of the mobile communication terminal 100, recognizes a morse code corresponding to the generated motion signal, and recognizes and inputs a key value corresponding to the recognized morse code. The input unit 110, the motion sensor unit 120, the morse recognition unit 130, the storage unit 140, the key value recognition unit 150, and the display unit 160 are controlled to be processed. In particular, when the mobile communication terminal 100 continuously moves within a preset time (for example, 1 second), the controller 170 recognizes a combination of Morse codes corresponding to one key value. In addition, when the movement of the mobile communication terminal 100 is stopped for a predetermined time or more, the controller 170 recognizes the previously recognized Morse code as an input signal according to one key value, and the Morse code recognized thereafter is another key. Recognition as an input signal according to the value to control the operation of the key value recognition unit 150 accordingly.

7 is a diagram illustrating a process of performing a key input using a motion sensor in a mobile communication terminal according to an embodiment of the present invention.

When the input button 101 is pressed once, the key input mode using the motion sensor according to the present invention is performed, and when it is pressed again, the key input mode is released.

Referring to FIG. 7, the mobile communication terminal 100 receives a key input command (step 710), and determines whether there is a movement of the mobile communication terminal 100 by operating a motion sensor (step 720).

When the motion is detected, the mobile communication terminal 100 generates a motion signal according to the degree of motion (step 730), and recognizes and temporarily stores a morse code corresponding to the generated motion signal (step 740). The recognized morse code may be temporarily stored in the storage 140 or the storage medium provided separately. When a key value according to the stored morse code is recognized and input processed, the stored morse code may be deleted or may be stored with another morse code covered.

The mobile communication terminal 100 determines whether another movement is detected within a predetermined time (for example, 1 second) (step 750), and when another movement is detected, recognizing and storing a morse code according to the newly detected movement. To step 740 again.

If no other movement is detected within a certain time in step 750, a key value corresponding to the morse code recognized and stored according to the movement of the mobile communication terminal 100 to date is used by using a morse key value table (see FIGS. 3 to 6). And recognition (step 760) and input processing of the recognized key value (step 770). The mobile communication terminal 100 may display the information corresponding to the input processed key value through the display device 103 or the like. Thereafter, the mobile communication terminal 100 determines whether the input button 101 is pressed again (780), and if it is not pressed, proceeds to step 720 again.

In the present exemplary embodiment, the mobile communication terminal 100 determines whether or not the morse signal is combined by determining whether another motion is detected within a predetermined time, but as described above, the input button 101 or the like is pressed without checking the time. The movement of the mobile communication terminal 100 that is continuously detected may be set to correspond to one key value. That is, in order to input two key values, the user inputs one key value by moving the mobile communication terminal 100 while pressing the input button 101 once, and releases the pressed state of the input button 101. After pressing again, other key values may be input by moving the mobile communication terminal 100.

The method of the present invention as described above may be implemented in a program and stored in a computer-readable recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.).

The present invention is not limited to the above embodiments, and many variations are possible by those skilled in the art within the spirit of the present invention.

As described above, according to the present invention, there is an effect of providing a key input method and apparatus using a motion sensor capable of performing key input using a motion sensor capable of recognizing a movement of an electronic device.

In addition, there is an effect that can provide a key input method and apparatus using a motion sensor that can increase the sales by reducing the manufacturing cost for the key input means in an electronic device such as a mobile communication terminal.

Although described above with reference to a preferred embodiment of the present invention, those skilled in the art that various modifications of the present invention without departing from the spirit and scope of the invention described in the claims below And can be changed.

Claims (9)

In the electronic device, An input unit; A motion sensor unit; A morse recognition unit recognizing a morse code corresponding to a motion signal generated by the motion sensor unit according to a key input command input through the input unit; A storage unit for storing a morse key value table; And And a key value recognizer configured to recognize a key value corresponding to a morse code recognized by the morse recognizer using the morse key value table. The method of claim 1, And the motion sensor unit generates a motion signal only when the input unit is operated. The method of claim 1, The recognized morse code is recognized as one of one or more dots, dashes, and combinations thereof, The motion signal corresponding to the dash is a key input electronic device using a motion sensor, characterized in that is generated when the electronic device continuously moves for more than a predetermined time or length predetermined. The method of claim 1, And a display unit for displaying information on the morse key value table in response to the key input command. In a key input method in an electronic device having a motion sensor, (a) generating, by the motion sensor, a motion signal corresponding to the movement of the electronic device according to the input key input command; (b) recognizing a Morse code corresponding to the motion signal; And (c) a key input method using a motion sensor comprising the step of recognizing and inputting a key value corresponding to the Morse code. The method of claim 5, The step (a) is a key input method using a motion sensor, characterized in that performed in the state that the input button for receiving the key input command is pressed. The method of claim 5, The step (c) is a key input method using a motion sensor, characterized in that for recognizing the key value corresponding to the current input mode and the Morse code using a pre-stored Morse key value table. The method of claim 5, The recognized morse code is recognized as one of one or more dots, dashes, and combinations thereof, And a motion signal corresponding to the dash is generated when the electronic device continuously moves for more than a predetermined time or length. The method of claim 5, And information about the morse key value table is displayed in correspondence with the key input command.

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