KR20120052061A - Key input processing method for mobile terminal - Google Patents

Abstract

The present invention provides a method of detecting a key pressed simultaneously from a keypad, determining whether the number of keys pressed is greater than or equal to a set number, and determining whether a specific key is pressed when the number of keys pressed is greater than or equal to a set number; Ignoring processing for a particular key if it is detected as being pressed, and executing processing for a key detected as being pressed in addition to the particular key.

Description

KEY INPUT PROCESSING METHOD FOR MOBILE TERMINAL}

The present invention relates to a key input processing method of a portable terminal, and more particularly, to a key input processing method of a portable terminal which prevents a key not inputted from being executed due to a malfunction.

As the functions are diversified, the terminal is implemented in the form of a multimedia device having a complex function of, for example, taking pictures or moving pictures, playing music or moving picture files, receiving games and receiving broadcasts have.

The terminal can move And may be divided into a mobile terminal and a stationary terminal depending on whether the mobile terminal is a mobile terminal or a mobile terminal. A portable terminal is a portable device that is portable and has one or more functions for making voice and video calls, inputting and outputting information, and storing data.

In order to support and increase the function of such a terminal, it may be considered to improve the structural part and / or the software part of the terminal.

In general, as the portable terminal provides a user with a text-based service such as a personal schedule and an electronic notebook, in addition to a function of simply talking with the other party, the use rate of the key input detection device is gradually increasing.

However, in the above-described key input detection device, when the key input is made at the same time or at a very high speed, the unkeyed key may be malfunctioned and executed.

Therefore, there is a need to prevent an unkeyed key from being malfunctioned and executed even if the key input is performed simultaneously or at a very high speed.

One embodiment of the present invention provides a key input processing method of a portable terminal in which a key not input is malfunctioned and is not executed even when key input is performed simultaneously or at a very high speed.

In order to achieve the above object of the present invention, a key input processing method of a portable terminal according to an embodiment of the present invention, the step of detecting the number of keys pressed at the same time from the keypad and which key is pressed, and the pressed key Determining whether a total number of keys is greater than or equal to a set number; determining whether a specific key is pressed when the total number of keys that are pressed is greater than or equal to a set number; and ignoring processing for the specific key when it is detected that a specific key is pressed; And executing the corresponding processing on the key detected as being pressed in addition to the specific key.

According to an example related to the present invention, when the total number of the pressed keys is less than the set number, the corresponding processing for the keys detected as pressed may be executed.

According to an example related to the present invention, when a specific key is detected as not being pressed, corresponding processing may be performed on a key detected as being pressed.

According to an example related to the present invention, the set number of the total number of the pressed keys may be four.

According to an example related to the present invention, the specific key may be a transmission key.

According to the key input processing method of the portable terminal of the present invention, even when the key input is made at the same time or at a very high speed, it is possible to prevent a case in which an unentered key is malfunctioned and executed.

1 is a block diagram illustrating a functional configuration of a portable terminal and an organic control system therebetween according to an embodiment of the present invention.
Figure 2 is a front side perspective view showing an example of the arrangement for each component for implementing a functional configuration of a portable terminal according to an embodiment of the present invention.
Figure 3 is a rear side perspective view showing an example of the arrangement for each component for implementing a functional configuration of a portable terminal according to an embodiment of the present invention.
4 is a diagram illustrating a configuration of a keypad circuit and an example of malfunction in a portable terminal according to an embodiment of the present invention.
5 is a flowchart illustrating a key input processing method of a portable terminal according to an embodiment of the present invention.

Hereinafter, a switch assembly related to the present invention and a mobile terminal having the same will be described in more detail with reference to the accompanying drawings. In the present specification, different embodiments are given the same or similar reference numerals for the same or similar configurations, and the description is replaced with the first description. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise.

The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role.

The mobile terminal described in this specification may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player), and navigation. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

1 is a block diagram of a mobile terminal according to the present invention.

Referring to FIG. 1, the mobile terminal 100 according to an embodiment of the present invention includes a wireless communication module 161, an operation unit 116, 117, an image input unit 115, 121, an audio input unit 118, a display unit 113, The sound output unit 114, the sensing unit 166, the interface 119, the broadcast receiving module 165, the memory 164, the power supply unit 120, and the controller 160 are included.

1 shows a mobile terminal having various components. However, not all illustrated components are required. The mobile terminal may be implemented by more components than the illustrated components, or the mobile terminal may be implemented by fewer components.

The controller 160 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like.

The wireless communication module 161 transmits / receives a radio signal with a mobile communication base station through an antenna unit. For example, under the control of the controller 160, the transmitter 162 is responsible for transmitting and receiving voice data, text data, video data, and control data, and modulates and transmits a signal to be transmitted, and a receiver for demodulating the received signal. 163).

The operation units 116 and 117 are configured as shown in FIG. 1 to provide the control unit 160 with key input data input by the user for controlling the operation of the terminal. Manipulators 116 and 117 are configured as dome switches. The operation unit may be composed of a touch pad (constant voltage / capacitance), a jog wheel, a jog switch, and the like.

The image input units 115 and 121 process image frames such as still images or moving images obtained by the image sensor in a video call mode or a photographing mode. The processed image frame is converted into image data displayable on the display unit 113 and output to the display unit 113.

The image frames processed by the image input units 115 and 121 may be stored in the memory 164 or transmitted to the outside through the wireless communication module 161 under the control of the controller 160.

The sound input unit 118 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data is converted into a form transmittable to the mobile communication base station through the wireless communication module 161 and output to the wireless communication module 161 in the call mode. In the recording mode, the processed voice data is output to be stored in the memory 164.

The sound input unit 118 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The display 113 displays and outputs information processed by the mobile terminal. For example, when the mobile terminal is in a call mode, the control unit 160 displays and outputs a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal is in a video call mode or a photographing mode, the mobile terminal displays and outputs the captured image, UI, or GUI under the control of the controller 160. When the display unit 113 includes a touch screen, the display unit 113 is used as an input device in addition to the output device.

The sound output unit 114 controls the sound data or the memory 164 received from the wireless communication module 161 under the control of the control unit 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, and a broadcast reception mode. The stored sound data is converted and output to the outside.

In addition, the sound output unit 114 outputs a sound signal related to a function (eg, a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100.

The sensing unit 166 detects a current state of the mobile terminal such as an open / closed state of the mobile terminal, a location of the mobile terminal, presence or absence of a user contact, and generates a sensing signal for controlling the operation of the mobile terminal. For example, when the mobile terminal is in the form of a slide phone, whether the slide phone is opened or closed is sensed so as to output a sensing result to the controller 160 to control the operation of the terminal. In addition, it is responsible for sensing functions related to whether the power supply unit 120 is supplied with power or whether the interface 119 is coupled to an external device.

The interface 119 may be connected to a mobile terminal using a wired / wireless headset, an external charger, a wired / wireless data port, a card socket (eg, a memory card, a SIM / UIM card), or the like. It serves as an interface with the device. The interface 119 receives data from an external device or receives power and transmits the data to each component inside the mobile terminal, or transmits the data inside the mobile terminal to the external device.

The memory 164 may store a program for processing and controlling the control unit 160, and provides a function for temporarily storing input / output data (for example, a phone book, a message, a still image, a video, etc.). Can be done.

In addition, the memory 164 stores a program for controlling the operation of the mobile terminal 100 according to the present invention.

This memory 164 includes concepts such as hard disks, card type memory (e.g., SD or XD memory, etc.), flash memory, RAM, ROM, and the like, which are generally known.

The broadcast receiving module 165 receives a broadcast signal transmitted through a satellite or terrestrial wave, converts the broadcast signal into a broadcast data format that can be output to the sound output unit 114 and the display unit 113, and outputs it to the control unit 160. In addition, the broadcast receiving module 165 receives additional data related to the broadcast (for example, an EPG (electric program guide), a channel list, etc.). The broadcast data and additional data converted by the broadcast receiving module 165 may be stored in the memory 164.

The power supply unit 120 receives an external power source and an internal power source under the control of the controller 160 to supply power for operation of each component.

2 is a front perspective view of a mobile terminal 100 according to the present invention.

Referring to FIG. 2, the mobile terminal 100 includes a terminal body 110 of a 'bar' type. However, the present invention is not limited to the bar type mobile terminal disclosed in FIG. 2, but is a 'folder' type in which two terminal bodies are foldably connected, but a 'slide' is slidably connected. The present invention can be applied to a mobile terminal having a different type or form factor, such as a type.

The case (casing, housing, cover, etc.) forming the exterior of the terminal body 110 is formed by the front case 111 and the rear case 112. Various electronic components are embedded in the space formed by the front case 111 and the rear case 112. At least one intermediate case 111a may be further disposed between the front case 111 and the rear case 112. The cases 111, 111a and 112 may be formed by injecting a synthetic resin, or may be formed of a metal material, for example, a material such as stainless steel (STS) or titanium (Ti), or a ceramic.

The front case 111 may include a display unit 113, a first sound output unit 114, a first image input unit 115, or a first manipulation unit 116.

The display unit 151 includes a liquid crystal display (LCD) module, an organic light emitting diodes (OLED) module, an e-paper, a transparent OLED (TOLED), and the like, which visually express information. In addition, the display unit 151 may be configured to receive information or a control command by a user's touch by including a touch sensing means. The touch sensing means may include a transparent electrode film disposed inside the window, and a resistive film type or an electrostatic type may be applied.

The first sound output unit 114 may be implemented in the form of a receiver or a speaker, and the first image input unit 115 may be in the form of a camera module for capturing an image or a video for a user. Can be implemented.

The first operation unit 116 receives a command for controlling the operation of the mobile terminal 100 according to an embodiment of the present invention.

The second manipulation unit 117, the sound input unit 118, and the interface 119 may be disposed on at least one of the front case 111 and the rear case 112.

The first and second manipulators 116 and 117 may be collectively referred to as manipulating portions, and may be employed in any manner as long as the user is tactile in a tactile manner.

For example, the operation unit may be implemented as a dome switch or a touch pad that may receive a command or information by a user's push or touch operation, or may be implemented by a wheel or jog method that rotates a key, or a method such as a joystick. Can be.

In functional terms, the first manipulation unit 116 may be for inputting a command such as a start, end, scroll, or the like, or for inputting numbers, letters, symbols, and the like. The second manipulation unit 117 may operate as a hot-key that performs a special function such as activation of the first image input unit 115.

The sound input unit 118 may be implemented in the form of, for example, a microphone to receive a user's voice, other sounds, and the like.

The interface 119 serves as a passage for allowing the mobile terminal 100 according to the present invention to exchange data with an external device. For example, the interface 119 is wired or wirelessly, a connection terminal for connecting with an earphone, a port for short-range communication (for example, an infrared port (IrDA port), a Bluetooth port, a wireless LAN port ( wireless Lan port), or at least one of power supply terminals for supplying power to the mobile terminal 100.

The interface 119 may be a card socket for receiving an external card such as a subscriber identification module (SIM) or a user identity module (UIM), a memory card for storing information.

3 is a rear perspective view of the mobile terminal 100 of FIG. 2.

Referring to FIG. 3, a second image input unit 141 may be additionally mounted on the bottom of the rear case 112. The second image input unit 121 may be a camera having a photographing direction substantially opposite to that of the first image input unit 115 (refer to FIG. 2) and having different pixels from the first image input unit 115.

For example, the first image input unit 115 has a low pixel so that it is easy to photograph a user's face and transmit the image to a counterpart in the case of a video call, and the second image input unit 121 immediately photographs a general subject. It is preferable to have a high pixel because it is not transmitted in many cases.

The flash 122 and the mirror unit 123 are further disposed adjacent to the second image input unit 121. The flash 122 emits light toward the subject when the subject is photographed by the second image input unit 121. The mirror unit 123 allows the user to see the user's face or the like when the user wants to photograph himself (self-photographing) using the second image input unit 121.

The terminal body may be provided with an antenna unit for a call, Bluetooth communication, or GPS communication. The rear case 112 may include an antenna 124 for receiving broadcast signals in addition to the antenna unit. The antenna 124 may be installed to be pulled out of the terminal body 110.

The power supply unit 120 for supplying power to at least one component of the mobile terminal 100 is configured at the rear case 112 side. The power supply unit 120 may include, for example, a rechargeable battery to supply power. The battery may be detachably coupled for charging or the like.

An antenna 116 for receiving a broadcast signal may be disposed on one side of the terminal body 110 in addition to an antenna for a call. The antenna 116 may be rotatably installed after being drawn out or drawn out to the rear case 112.

4 is a diagram illustrating a configuration of a keypad circuit and an example of a malfunction of a portable terminal according to an exemplary embodiment of the present invention.

Referring to the drawings, when the number '8' key, the number '5' key and the function key 'UP' key are pressed simultaneously or sequentially in any order (in the following description, at the same time or in any order) In the case of being sequentially pressed, it will be described as being pressed simultaneously.) The function of forming the loop 230 together with the number 8 key, the number 5 key and the function key UP by the characteristics of the circuit structure of the keypad. The key 'SEND' key is pressed and may malfunction.

Assuming that a key to be malfunctioned is a 'SEND' key, one key in the same column 220 as the 'SEND' key in the key arrangement and a row 210 in the same row as the key and the 'SEND' key, respectively If the keys are pressed at the same time, the 'SEND' key may also malfunction as if they were pressed.

As an example, the 'UP' and 'UP' and 'UP' keys in the same column 220 as the 'SEND' key, and the '5' and '8' keys in the same row 210 as the key, respectively. If it is pressed at the same time, the 'SEND' key is pressed in addition to the actually pressed key, which may cause a malfunction.

As another example, when the number '9' key and the function key 'LEFT' key and the function key 'RIGHT' key are pressed simultaneously, the number '9' key, the number '6' key and the function key 'UP' key are pressed simultaneously. In addition, the 'SEND' key is also pressed in addition to the actually pressed key, which may cause a malfunction. Table 1 shows examples of key combinations that may cause the 'SEND' key to malfunction.

CASE Key combination CASE Key combination One "9" + "LEFT" + "RIGHT" 7 "8" + "5" + "UP" 2 "9" + "3" + "DOWN" 8 "8" + "0" + "OK" 3 "9" + "6" + "UP" 9 "7" + "SOFT1" + "RIGHT" 4 "9" + "#" + "OK" 10 "7" + "1" + "DOWN" 5 "8" + "SOFT2" + "RIGHT" 11 "7" + "4" + "UP" 6 "8" + "2" + "DOWN" 12 "7" + "*" + "OK"

Next, a key input processing method of a portable terminal according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4 is a flowchart illustrating a key input processing method of a portable terminal according to an embodiment of the present invention.

When the user performs a key operation (S501), first, the controller 160 detects the number of keys simultaneously pressed from the keypad and which key is pressed (S502).

For example, when the number '8' key, the number '5' key and the function key 'UP' key are pressed at the same time, as described above, the 'SEND' key is also pressed and may malfunction. If the 'SEND' key malfunctions, the number of the pressed keys detected by the controller 160 is four, and the type of the pressed keys is a number '8' key, a number '5' key, a function key 'UP' key and a malfunctioning ' SEND 'key.

Next, the controller 160 determines whether the total number of pressed keys is greater than or equal to the set number (S503).

The number set here is set to a number in which the total number of keys pressed simultaneously is relatively hard to occur. In addition, the set number may be preset in the controller 160 or may be set according to a user input.

In the present embodiment, the set number is four. This is because the case where the number of keys pressed simultaneously is less than three is a case that can frequently occur when the actual portable terminal is used.

For example, since the set number is 4 and the number of keys pressed in the above example is detected as 4 (8, 5, UP, SEND), the set number is equal to the number of pressed keys, which corresponds to a value greater than or equal to the set number. .

Next, the controller 160 determines whether a specific key is pressed when the total number of keys pressed is more than a set number (S504).

The specific key may be set in advance in the controller 160 or may be set according to a user's input. In this case, since a specific key is a key for ignoring the corresponding command in a step to be described later, it is preferable to set the key to a key that may cause a disadvantage to the user during a malfunction.

In particular, in the case of a transmission key ('SEND' key), there is a possibility that a user fee will be added to the user in case of a malfunction. Therefore, the transmission key ('SEND' key) is a representative example of a specific key described in this embodiment. It was. In addition, keys such as the 'END' key and the 'CLR' key correspond to this.

Next, when it is detected that a particular key is pressed, the processing for the specific key is ignored (S505).

In other words, when the 'SEND' key is set to a specific key as in the above example, the transfer command is ignored. As a result, in the above example, it is detected that four keys are input at the same time, and if the 'SEND' key is included, the command for the 'SEND' key is ignored.

Next, a corresponding processing is executed on a key detected as being pressed in addition to a specific key (S506).

That is, in the above example, the number '8' key, the number '5' key, and the function key 'UP' key detected as being pressed other than the 'SEND' key are judged and processed as normal input, and the result of performing the number and function is displayed. Displayed in section 113.

In this case, if it is detected that the 'SEND' key is not pressed, it is determined by the fine key operation and executes all the commands corresponding to the detected four keys.

For example, if it is determined that the number '8' key, the number '5' key, the function key 'UP' key, and the number '0' key are pressed at the same time, it is determined that the corresponding key is normally input and processed. The display results of the execution of the display unit 113.

Accordingly, even when the key input is performed at the same time or at a very high speed, it is possible to prevent a key that is not input from being malfunctioned and executed.

On the other hand, if the total number of keys pressed is less than the set number, the corresponding processing for the keys detected as pressed is executed.

That is, if the number of the set number is 4, if one, two or three keys less than four are detected at the same time, it is determined by normal key operation to execute a command corresponding to each key.

For example, when it is determined that the number '1' key, the number '2' key, and the number '3' key are simultaneously pressed, the corresponding key is judged to be normally input and processed, and the number is displayed on the display 113. .

In addition, even when it is determined that the number '1' key, the number '2' key, and the 'SEND' key are simultaneously pressed, the corresponding key is judged and processed as normal, and thus the operation of the 'SEND' key can be performed normally.

The key input processing method as described above and a mobile terminal having the same are not limited to the configuration and method of the embodiments described above, but the embodiments may be selectively combined with all or part of the embodiments so that various modifications can be made. It may be configured.

Claims (5)

Detecting the number of keys pressed simultaneously from the keypad and which keys were pressed;
Determining whether the total number of pressed keys is equal to or greater than a set number;
Determining whether a specific key has been pressed if the total number of pressed keys is equal to or greater than a set number;
Ignoring the processing for the particular key if it is detected that the particular key has been pressed;
Executing the corresponding processing on the key detected as being pressed in addition to the specific key
Key input processing method of a portable terminal comprising a. The method of claim 1,
If the total number of keys pressed is less than the set number of key input processing method of the portable terminal to perform the corresponding processing for the key is detected as being pressed. The method of claim 1,
The method of processing a key input of a portable terminal, when the specific key is detected as not being pressed to execute the corresponding processing on the key detected as being pressed. The method of claim 1,
And a set number of the total number of the pressed keys is four. The method of claim 1,
And said specific key is a transmission key.

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