KR101418285B1 - Mobile terminal rear side sensor and operating method using the same - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal having a rear sensor and a method of operating the same, The user can easily search for desired data by automatically changing the key mapping displayed on the rear display to match the position of the rear sensor.

Rear sensor, key mapping change, rear display

Description

TECHNICAL FIELD [0001] The present invention relates to a mobile terminal having a rear sensor and a method of operating the same.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to display control, and more particularly, to a mobile terminal equipped with a rear sensor and a method of operating the same.

The mobile terminal may be configured to perform various functions. Examples of such various functions include a data and voice communication function, a function of photographing a video or a moving image through a camera, a voice storage function, a music file playback function through a speaker system, and an image or video display function. Some mobile terminals include additional functions to execute games, and some other mobile terminals are also implemented as multimedia devices. Moreover, recent mobile terminals can receive a broadcast or multicast signal to view a video or television program.

Further, efforts for supporting and increasing the functions of the mobile terminal continue. Such efforts include not only changes and improvements in structural components that form the mobile terminal, but also improvements in software or hardware.

Generally, a touch screen does not use a keyboard, but when a human hand or an object touches a character or specific position on a screen (screen), the position is detected and processed by the stored software, Speak screen.

The touch panel is provided with a touch panel on the screen of a general monitor. The touch panel allows infrared rays to flow up, down, left, and right so that a large number of square lattices are formed on the screen. When a finger or other object touches the touch panel, It has a function to make it understandable.

Therefore, when the user touches the character or picture information displayed on the screen with the touch panel by hand or inputs predetermined data, the touch screen grasps what the user has selected or inputted according to the position of the contacted screen And processes the corresponding command, so that it is possible to easily obtain the information desired by the user.

The touch screen is used in a cash dispenser or an interior device provided in a place used by a lot of people such as a subway, a department store, a bank, and the like, and is particularly used in portable electronic devices emphasizing miniaturization and convenience.

Therefore, in the electronic device equipped with the touch screen, in particular, the mobile terminal, the user moves the cursor using the touch screen, selects a desired list, and performs movement and selection of the list using the wheel. In this case, the user must move the cursor to the desired position and hold the mobile terminal with one hand for the correct selection and touch the screen with the other hand. This premise can lead to at least one improvement.

For example, if the user holds the mobile terminal with one hand and moves the cursor with one hand using the sensor attached to the specific position instead of touching the screen with the other hand, It will be effective. Further, it may be more effective to perform the operation of controlling the display of the information displayed on the screen, such as the key mapping, using the sensor.

The present invention provides a mobile terminal and a method of operating the same that can conveniently perform cursor movement and function selection using a rear sensor and side buttons.

According to an embodiment of the present invention, there is provided a mobile terminal comprising: a first display located on a front surface of a main body; A second display located on a rear surface of the main body; Operating means provided at an upper portion of the second display for moving a cursor; And a control unit for controlling the movement of the cursor in accordance with the contact of the operation unit and changing the key mapping for the up and down movement of the operation unit according to whether the first display and the second display are activated.

Preferably, the operating means further comprises a select button and a function button at a symmetrical position with respect to a center line of the width, the button being located in the middle of the width. For example, when the user holds the terminal, the selection button is provided where the thumb is located, and the function button is located at a position opposite to the selection button.

Preferably, the operating means is one of a touch screen, a touch pad, a touch ball, a wheel, and a jog.

Preferably, the selection button and the option button are set by a user in a menu or automatically changed by a terminal according to the detection result of the electrostatic sensor.

According to an embodiment of the present invention, there is provided a method of controlling a display provided on a front surface and a rear surface of a main body, the method comprising: detecting whether the display is activated; Changing the key mapping between the screen switching between the front display and the rear display and the up and down movement of the cursor depending on whether the front display or the rear display is activated.

Preferably, when the key mapping is switched, the previous front display or the rear display is turned off.

Preferably, the keying when the second display is activated is set to be opposite to the keying when the first display is activated.

The present invention provides a rear sensor on the rear surface of the terminal body so that the user can perform cursor movement and list selection on the cursor front display with one hand. When the mobile terminal is turned upside down and uses the rear sensor, Is automatically changed to match the position of the rear sensor, thereby enabling the user to more conveniently search desired data.

Hereinafter, a mobile terminal related to the present invention will be described in detail with reference to the drawings.

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

The mobile terminal may be implemented in various forms. For example, the mobile terminal described in the present specification can be used for a mobile phone, a smart phone, a notebook computer, a digital broadcasting terminal, a PDA (Personal Digital Assistants), a PMP (Portable Multimedia Player) .

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, An interface unit 170, a control unit 180, a power supply unit 190, and the like. 1 shows a mobile terminal having various components. However, not all illustrated components are required. A mobile terminal may be implemented by more components than the illustrated components, or a mobile terminal may be implemented by fewer components.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more components that allow wireless communication between the mobile terminal 100 and the wireless communication system or wireless communication between the mobile terminal 100 and a network on which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives broadcast signals and / or broadcast-related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to a broadcast service provider. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

Meanwhile, the broadcast related information may be provided through a mobile communication network, and in this case, it may be received by the mobile communication module 112.

The broadcast-related information may exist in various forms. For example, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

The broadcast receiving module 111 receives broadcasting signals using various broadcasting systems. In particular, the broadcasting receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S) Only Digital Broadcast-Handheld (DVB-H), Integrated Services Digital Broadcast-Terrestrial (ISDB-T), and the like. Of course, the broadcast receiving module 111 is configured to be suitable for all broadcasting systems that provide broadcasting signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

In addition, the mobile communication module 112 transmits and receives radio signals to at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the wireless signal may include various types of data depending on a voice call signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be built in or externally.

The short-range communication module 114 is a module for short-range communication. Bluetooth, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, and the like can be used as the short distance communication technology.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. One example is the GPS (Global Position System) module. The GPS module receives position information from a plurality of satellites. Here, the location information may include coordinate information indicated by latitude and longitude. For example, the GPS module can accurately calculate the current location according to the triangulation method by measuring the precise time and distance from three or more satellites and measuring three different distances. A method of obtaining distance and time information from three satellites and correcting the error by one satellite may be used. In particular, the GPS module can acquire latitude, longitude and altitude as well as three-dimensional velocity information and accurate time from the position information received from the satellite.

An audio / video (A / V) input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. Then, the processed image frame can be displayed on the display unit 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal by a microphone in a communication mode, a recording mode, a voice recognition mode, and the like and processes it as electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. The microphone 122 may be implemented with various noise reduction algorithms for eliminating noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like. Particularly, when the touch pad has a mutual layer structure with the display unit 151, which will be described later, it can be called a touch screen.

The sensing unit 140 senses the current state of the mobile terminal 100 such as the open / close state of the mobile terminal 100, the position of the mobile terminal 100, the presence of the user, the orientation of the mobile terminal, And generates a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. Also, it is responsible for a sensing function related to whether or not the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like.

The interface unit 170 serves as an interface with all external devices connected to the mobile terminal 100. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, Video input / output (I / O) ports, earphone ports, and the like.

Here, the identification module is a chip that stores various information for authenticating the use right of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identity module (SIM) ), A Universal Subscriber Identity Module (" USIM "), and the like. In addition, an apparatus having an identification module (hereinafter referred to as 'identification device') can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device.

The output unit 150 is for outputting an audio signal, a video signal, or an alarm signal. The output unit 150 may include a display unit 151, an audio output module 152, and an alarm unit 153.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in the call mode, a UI (User Interface) or a GUI (Graphic User Interface) associated with a call is displayed. If the mobile terminal 100 is in the video communication mode or the photographing mode, the captured image and / or the received image or UI and GUI are displayed.

Meanwhile, as described above, when the display unit 13 and the touch pad have a mutual layer structure to constitute a touch screen, the display unit 151 can be used as an input device in addition to the output device. The display unit 151 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, a three-dimensional display 3D display). In addition, there may be two or more display units 151 according to the embodiment of the mobile terminal 100. For example, the mobile terminal 100 may be provided with an external display unit (not shown) and an internal display unit (not shown) at the same time.

The sound output module 152 outputs audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception mode, a call mode or a recording mode, a voice recognition mode, and a broadcast reception mode. The sound output module 152 outputs an acoustic signal related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the mobile terminal 100. [ The sound output module 152 may include a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the mobile terminal 100. Examples of events that occur in the mobile terminal include receiving a call signal, receiving a message, and inputting a key signal. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than an audio signal or a video signal. For example, it is possible to output a signal in a vibration mode. When a call signal is received or a message is received, the alarm unit 153 can output a vibration to notify it. Alternatively, when the key signal is input, the alarm unit 153 can output the vibration by the feedback to the key signal input. The user can recognize the occurrence of an event through the vibration output as described above. Of course, a signal for notifying the occurrence of an event may also be output through the display unit 151 or the audio output module 152.

The memory 160 may store a program for processing and controlling the control unit 180 and may store a program for temporarily storing input / output data (e.g., a phone book, a message, a still image, Function may be performed.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory) A random access memory (SRAM), a read only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM) , An optical disc, and the like. In addition, the mobile terminal 100 may operate a web storage for storing the memory 150 on the Internet.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, voice communication, data communication, video communication, and the like. In addition, the control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power required for operation of the respective components.

The various embodiments described herein may be embodied in a computer-readable recording medium using, for example, software, hardware, or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, micro-controllers, microprocessors, and electrical units for performing functions. In some cases, May be implemented by the control unit 180.

According to a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that perform at least one function or operation. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

The terminal 100 shown in Fig. 1 is configured to be operable in a communication system capable of transmitting data through a frame or packet, including a wired / wireless communication system and a satellite-based communication system .

Hereinafter, a communication system capable of operating a terminal according to the present invention will be described with reference to FIG.

The communication system may use different air interfaces and / or physical layers. For example, wireless interfaces that can be used by communication systems include, but are not limited to, Frequency Division Multiple Access ('FDMA'), Time Division Multiple Access ('TDMA'), Code Division Multiple Access (CDMA), Universal Mobile Telecommunications Systems (UMTS) (especially Long Term Evolution (LTE)), Global System for Mobile Communications (GSM) . Hereinafter, for the sake of convenience of description, the description will be limited to CDMA. However, the present invention is applicable to all communication systems including CDMA wireless communication systems.

2, the CDMA wireless communication system includes a plurality of terminals 100, a plurality of base stations (BSs) 270, and base station controllers (BSCs) 275 , And a mobile switching center ('MSC') 280. MSC 280 is configured to be coupled to a Public Switched Telephone Network (" PSTN ") 290, and is also configured to be coupled to BSCs 275. BSCs 275 may be coupled in pairs with BS 270 through a backhaul line. The backhaul line may be provided according to at least one of E1 / T1, ATM, IP, PPP, Frame Relay, HDSL, ADSL or xDSL. Thus, a plurality of BSCs 275 may be included in the system shown in FIG.

Each BS 270 may comprise at least one sector, and each sector may comprise an omnidirectional antenna or an antenna pointing to a particular direction of radial from BS 270. [ In addition, each sector may include two or more antennas of various types. Each BS 270 may be configured to support a plurality of frequency assignments and each of the plurality of frequency assignments has a specific spectrum (e.g., 1.25 MHz, 5 MHz, etc.).

The intersection of sector and frequency assignment may be referred to as a CDMA channel. BS 270 may be referred to as a Base Station Transceiver Subsystem (BTSs). In this case, the word "base station" may be referred to as a combination of one BSC 275 and at least one BS 270. [ The base station may also indicate a "cell site ". Alternatively, each of the plurality of sectors for a particular BS 270 may be referred to as a plurality of cell sites.

2, a broadcasting transmitter (BT) 295 transmits a broadcasting signal to the terminals 100 operating in the system. The broadcast module 111 shown in FIG. 1 is provided in the terminal 100 to receive a broadcast signal transmitted by the BT 295.

In addition, FIG. 2 illustrates several Global Positioning System ('GPS') satellites 300. The satellites 300 help to locate at least one of the plurality of terminals 100. Although two satellites are shown in Figure 4, useful location information may be obtained by two or more satellites. The GPS module 115 shown in FIG. 1 cooperates with satellites 300 to obtain desired location information. Here, you can track your location using all of the technologies that can track your location, as well as your GPS tracking technology. Also, at least one of the GPS satellites 300 may optionally or additionally be responsible for satellite DMB transmission.

Among the typical operations of a wireless communication system, BS 270 receives reverse link signals from various terminals 100. [ At this time, the terminals 100 are in the process of connecting a call, transmitting or receiving a message, or performing another communication operation. Each of the reverse link signals received by the particular base station 270 is processed by the particular base station 270. The data resulting from the processing is transmitted to the connected BSC 275. The BSC 275 provides call resource allocation and mobility management functions, including the organization of soft handoffs between the base stations 270. The BSC 275 also transmits the received data to the MSC 280 and the MSC 280 provides additional transmission services for connection with the PSTN 290. [ Similarly, the PSTN 290 connects to the MSC 280, the MSC 280 connects to the BSCs 275, and the BSCs 275 communicate with the BSs 270 ).

FIG. 3 is a schematic block diagram of a mobile terminal having a rear sensor (manipulating means), and FIG. 4 is a side perspective view of the mobile terminal shown in FIG.

3 and 4, a mobile terminal according to the present invention includes a first display 50 positioned on a front surface of a main body, a second display 51 positioned on a rear surface of the main body, Operating means (52) provided on the second display (51) for moving the cursor; And a control unit 180 for controlling the cursor movement according to a touch input through the operation unit 52 and controlling key mapping between the first display 50 and the second display 51 in accordance with rotation of the main body.

The first display 50 and the second display 51 correspond to the display unit 151 of FIG. The first display 50 is configured as a front touch screen and the second display 51 is implemented as a smaller size than the first display 50. [

The operating means 50 corresponds to the user input unit 130 of FIG. 1 and is provided on the rear surface of the main body. The center is positioned with respect to the width direction of the terminal. This is to give the same feeling whether it is used by right-handed or left-handed. The operating means 50 includes a touch screen, a touch pad, a touch ball, a mechanical jog dial, and a mechanical touch as a rear surface sensor.

The controller 180 generates a cursor on the first display 50 when the user's finger touches the operation means 52 and moves the cursor according to the change in the contact position. The controller 180 senses the rotation of the terminal by the sensing unit 140, that is, the gravity sensor. That is, when the terminal rotates and the first display 50 is positioned in the gravity direction and the second display is positioned in the direction opposite to the gravity direction, it is determined by the user that the second display is easy to use, . At this time, the first display 50 may be deactivated and turned off to reduce the battery consumption. The activation of the second display 51 can also be selected by the user through the menu. For example, it is possible to set the first display activation mode and the second display inactivation mode for video viewing and the second display activation mode and the first display inactivation mode for music appreciation.

When the second display 51 is activated and the second display 51 is activated, the operating means 52 is positioned above the second display 51, which makes the operability worse. The second display 51 is hidden. Therefore, when the second display 51 is activated, it is more advantageous to use the operating means 52 in a downward direction. Accordingly, the display direction of the display 51 and the key mapping direction of the operating means 52 . That is, the operating means 52 must also reverse the movement of the cursor when the second display 51 is activated (when it is positioned in the gravity direction). For example, when the operation means 52 is operated in the direction A, the control is performed such that the cursor is moved upward when the first display is activated and the cursor is moved downward when the second display is activated, do.

Also, the controller 180 turns off the first and second displays 50 and 51 when the mobile terminal is used as a wireless mouse using Bluetooth.

3, the mobile terminal according to the present invention includes a selection button 53 and a function button 54 for selecting a list and selecting a new function. The position of the selection button 53 and the function button 54 may be changed according to the user's convenience. For example, as shown in FIG. 5, the selection button 53 is disposed at a position where the thumb is located when the user holds the terminal, and the function button 54 is disposed at a position opposite to the selection button 53 have. As another example, the selection button 53 and the function button 54 may be arranged at a certain distance from the operating means 50 so that they can be operated by detection. That is, the selection button and the function button have a symmetrical positional relationship with the width of the main body as a center line.

Thus, in the present invention, the operating means 50, the select button 53, and the function button 54 are the same as the mouse function. At this time, the selection button 53 and the function button 54 may be set by menu selection or may be automatically changed according to detection by the electrostatic sensor (right hand or left hand).

Other parts of the mobile terminal shown in FIG. 3 are the same as those shown in FIG. 1, and a detailed description thereof will be omitted.

The wireless charging method in the mobile terminal according to the present invention will now be described with reference to the accompanying drawings.

FIG. 5 is a flowchart illustrating a method of operating a mobile terminal using a rear sensor according to the present invention, and FIG. 6 shows a position of a finger when a user holds the mobile terminal according to the present invention If located).

5 and 6, when the mobile terminal is held, the operating means 52 is disposed at a position where the index finger is located, the selection button 53 is disposed at a position where the thumb is located, And is disposed at a position opposite to the selection button 53. [

Therefore, the user can select a new function or select a list of places where the cursor is positioned by using the thumb or index finger while moving the cursor by bringing the index finger into contact with the operating means 52 while holding the mobile terminal with one hand . Hereinafter, the operation will be described in more detail.

6, when the user holds the mobile terminal with one hand and contacts the index finger with the operating means 52 (touch screen, touch pad, touch ball, wheel and the like) The cursor 60 is automatically generated on the first display 50 of the mobile terminal, as shown in FIG. 7, corresponding to the sensing signal output from the operating means 52 (S10).

In this state, when the user changes the contact position using the operating means 52, the control unit 180 controls the operation unit 52 to generate the position corresponding to the contact position change of the operating means 52 (S11). Thus, the user can search a plurality of lists by moving the cursor by changing the contact position of the operating means, that is, the rear sensor, provided on the rear surface of the terminal body.

Accordingly, the user moves the cursor to the desired list and then presses one of the side buttons, that is, the select button 53 and the function button 54, to select the list or select a new function, The user can select a desired list or select a new function according to the input of the selection button 53 or the function button 54 (S12, S13).

8 shows an example of selecting a specific list using a selection button after the cursor is moved. 8 shows a case where the user presses the selection button 53 after moving the cursor 60 to the "Artists" list using the operation means 52. In this case, if the user presses the selection button 53, . In this way, the user can move the cursor 60 between various lists (Recenytly played, All tracks, Playlists, Albums alc Genres) using the operating means 52, and the user can move the cursor Press the side button to select the list.

On the other hand, the user can use the second display 51 located on the rear side as well as the first display 50 dented on the front side of the mobile terminal. In this case, the control unit 180 must change the screen switching and the key mapping on the second display 51 differently from the screen display and the keying of the first display 50. This is because, when the mobile terminal is turned upside down, the second display 51 is covered by the hand as shown in FIG. 6, making it difficult to search a desired list.

Therefore, in order to prevent the second display 51 from being covered by the hand, the user must turn the mobile terminal so that the operating means 52 is positioned downward as shown in Fig. However, it is possible to operate the operation means 52, the selection button 53 and the function button 54 while the second display 51 is not covered by the hand by turning the mobile terminal, but the second display 51 ) Remains the same as before. That is, the list is reversed and the cursor is moved in the opposite direction.

Accordingly, when the operating means 52 is turned so as to be positioned downward so that the second display 51 is not covered by the hand after reversing the mobile terminal, the key is displayed together with the list display The mapping must be changed to allow the user to conveniently perform cursor movement and list selection. That is, when the operating means 52 is used in a downward direction, the display direction of the list and the key mapping direction must be controlled to be opposite. For example, when the operation means 52 is operated in the same direction, when the first display is activated, the cursor is controlled to move upward. When the second display is activated, the cursor is controlled to move downward Should be.

Accordingly, when a detection signal indicating that the mobile terminal is rotated (when the user reverses the mobile terminal) is input from the gravity sensor during the list search on the first display 50, the controller 180 detects activation of the display, It can be checked whether the touch of the operating means 52 is input within the time (S14) and whether the second display 51 is used (S14). This confirmation is for changing the screen display and the key mapping only when it is actually required, given a specific condition when the children turn over the terminal frequently as a prank, and step S15 may be selectively performed by menu setting. That is, when the rotation of the mobile terminal is detected from the gravity sensor, the controller 180 may directly proceed to step S16. Here, if the rotation of the mobile terminal is detected again, the first display 50, which was the initial state, may be activated and restored to the key display of the screen display and operation means.

Accordingly, if the use of the first display 50 is confirmed in the step S15, the controller 180 repeatedly performs the operation after step S10, and in step S15, the second display 51 The controller 180 displays the screen (a plurality of screens) displayed on the first display 50 on the second display 51 and the second display 51 ) In accordance with the position of the operation means 52 (S16).

That is, when the operating means 52 controls the first display 50, the operating means 52 is positioned above the first display surface. Therefore, the control unit 180 sets the key mapping of the operating means 52 so that the cursor is moved upward when the operating means 52 is operated in the upward direction and is operated in the downward direction when the operating means 52 is operated in the downward direction. do.

However, when the second display 51 is activated, it is displayed in a direction opposite to that of the first display 50 as shown in FIG. 9. At this time, the operating means 52 is located below the second display 51 . Therefore, when the second display 51 is activated as compared with the case where the first display 50 is activated, the keying of the operating means for up and down movement of the cursor must be set to the opposite. In addition, when the second display 51 is activated, the controller 180 may turn off the first display 50 to prevent power consumption of the battery.

Thereafter, the control unit 180 detects the change of the contact position of the operation means 52 (S17) and moves the cursor to the position corresponding to the contact position change on the second display 51 (S18). Thus, the user can search a plurality of lists by moving the cursor by changing the contact position of the operating means, that is, the rear sensor, provided on the rear surface of the terminal body.

Accordingly, the user moves the cursor to the desired list and then presses one of the side buttons, that is, the select button 53 and the function button 54, to select the list or select a new function.

When the user uses the operating means 52, the select button 53 and the function button 54 as a wireless mouse using the Bluetooth, the controller 810 controls the first and second displays 50, (51) are turned off, and then the corresponding operation is performed.

As described above, according to the present invention, a user can perform a cursor movement and a list selection with a single hand by providing a rear sensor, and when the mobile terminal is turned upside down, the key mapping is automatically changed, thereby enhancing convenience for the user.

The operating means and the side buttons applied to the present invention are applicable not only to silver mobile terminals but also to all portable apparatuses such as PDAs, mobile terminals or portable game machines.

Further, according to an embodiment of the present invention, the above-described method can be implemented as computer-readable code on a medium on which a program is recorded. The computer readable medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of the computer-readable medium include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and also implemented in the form of a carrier wave (for example, transmission over the Internet) . In addition, the computer may include a control unit 180 of the terminal.

The above-described mobile terminal according to the present invention is not limited in the configuration and the method of the above-described embodiments, but the embodiments may be modified such that all or some of the embodiments are selectively And may be configured in combination.

As described above, according to the present invention, a rear sensor is provided on a rear surface of a terminal body so that a user can perform a cursor movement and a list selection on a cursor front display with one hand. When the mobile terminal is turned upside down and use a rear sensor, The user can automatically search for desired data by automatically changing the displayed key mapping to match the position of the rear sensor.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention;

2 is a block diagram of a wireless communication system in which a mobile terminal may operate in accordance with an embodiment of the present invention.

3 is a schematic block diagram of a mobile terminal with a rear sensor;

FIG. 4 is a side perspective view of the mobile terminal shown in FIG. 3; FIG.

5 is a flowchart illustrating a method of operating a mobile terminal using a backside sensor according to the present invention.

6 is a view showing the position of a finger when the user holds the mobile terminal according to the present invention.

7 is a view showing an example of another cursor movement in the movement of the contact position of the operating means;

8 is a view showing an example of selecting a specific list by using a selection button after the cursor is moved.

9 is a view showing an example of screen switching and key mapping when the mobile terminal is rotated and the operating means is located at the lower end of the main body.

DESCRIPTION OF REFERENCE NUMERALS FOR MAJOR PART OF DRAWINGS ********

50: first display 51: second display

52: Operating means 53: Select button

54: function button 60: cursor

180:

Claims (13)

A front display located on the front of the main body; Operating means for moving the cursor located at an upper portion of the rear surface of the main body; A selection button and a function button for respectively selecting a list of the cursor positioned on the left and right of the operating means and a new function; And a control unit for performing a cursor movement, a list selection, and a function selection by sensing an input of the operation means and a button, Wherein the controller detects the shape of the terminal grip of the user and automatically changes the mapping between the selection button and the function button. 2. The apparatus according to claim 1, Wherein the mobile terminal is one of a touch screen, a touch pad, a touch ball, a wheel, and a jog. 3. The apparatus according to claim 2, wherein the operating means Wherein the mobile terminal further comprises a selection button and a function button at a symmetrical position with respect to a center line of the width, located at the center of the width. delete delete The method according to claim 1, Further comprising a rear display located below the operating means The control unit And changes the key mapping for up and down movement of the operating means when the rear display is activated. A first display located in front of the body, A second display located on a rear surface of the main body; Operating means provided at an upper portion of the second display for moving a cursor; And a controller for changing the key mapping related to the up and down movement of the operating means according to whether or not the first display and the second display are activated. 8. The apparatus according to claim 7, wherein the operating means Wherein the mobile terminal further comprises a selection button and a function button at a symmetrical position with respect to a center line of the width, located at the center of the width. 8. The apparatus according to claim 7, wherein the operating means A touch screen, a touch pad, a touch ball, a wheel, and a jog. The mobile terminal of claim 8, wherein the selection button and the option button are set by a user in a menu or automatically changed by a terminal according to a detection result of the electrostatic sensor. A method of controlling a display provided on a front surface and a rear surface of a main body, Detecting whether the front display and the rear display are activated; And changing a key mapping between the screen switching between the front display and the rear display and the up and down movement of the cursor according to whether the display is activated or not. 12. The method of claim 11, wherein when the key mapping is switched, the previous front display or the rear display is turned off. 12. The method of claim 11, wherein keying when the rear display is activated Is set to be opposite to the keying when the front display is activated.

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