JP2007109128A - Input device for inputting password or the like, and cellular phone device having input device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a third party from inputting a regular password. <P>SOLUTION: A contact detection sensor allowing a user to input a character by tracing it with the finger is arranged in a region having a numeric keypad of the cellular phone. When a password for canceling key lock is registered, the password is complicated by combining a shape that the user traces on the contact detection sensor and the number inputted from the numeric keypad. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an input device for inputting a personal identification number and the like, and a mobile phone device including the input device, and more particularly to an input device and a mobile phone device in which a touch detection sensor is provided in an operation unit.

  In recent telephone devices, the key operation is disabled according to the user's operation in order to prevent the user from using it by someone else when the user loses the mobile phone. A telephone device having a so-called key lock function that makes a key operation effective by inputting is commercialized.

In addition, the telephone device on the called side is put into the key lock state by remote operation, such as making a call from the telephone device to the desired telephone device, then inputting the password, and setting the desired phone device in the key lock state. The technique to do is proposed (refer patent document 1).
JP-A-6-125305

However, in a mobile phone device having such a key lock function, the user often registers his / her date of birth, car number, or consecutive number as a 4-digit password. Therefore, in the method of inputting a 4-digit password by pressing a key, there is a high possibility that the correct password is input by another person and the key lock state is released. In addition, if the number is a four-digit number, the personal identification number may be canceled if a third party appropriately inputs the numeric keypad.

The present invention is for solving such a problem, and is intended to prevent other people from easily releasing the key lock when the mobile phone is lost.
The input device according to claim 1 includes a numeric keypad and a contact detection sensor, and can register a combination of a shape input by tracing the contact detection sensor and a number input from the numeric keypad as a password. It is characterized by being.
The input device according to claim 2 includes a numeric keypad and a contact detection sensor, and distinguishes between a number input from the touch detection sensor and a number input from the numeric keypad, and registers a combination thereof as a password. It is possible.
The input device according to claim 3, wherein the numeric keypad, the contact detection sensor, and storage means for storing a combination of a shape input by tracing the contact detection sensor and a number input from the numeric keypad as a personal identification number; Control means for controlling the operation of the specific function to be prohibited, and the control means prohibits the operation of the specific function from the contact detection sensor and the numeric keypad to the storage means. When it is determined that the same password as the stored password is input, control is performed so as to cancel the prohibition of the operation of the specific function.
The input device according to claim 4, a numeric keypad, a contact detection sensor, a storage unit that distinguishes between a number input from the contact detection sensor and a number input from the numeric keypad and stores a combination thereof as a password. Control means for prohibiting the operation of the specific function, wherein the control means prohibits the operation of the specific function from the contact detection sensor and the numeric keypad and stores the storage means. If it is determined that the same password as the password stored in is input, control is performed so as to cancel the prohibition of the operation of the specific function.

  According to the present invention, since the password is input by a combination of the input from the numeric keypad and the input from the touch detection sensor, the password is more complicated than the conventional method of inputting the 4-digit password by the numeric keypad. Is possible. For this reason, it is possible to avoid a third party from easily deciphering the password and illegally using an electronic device such as a mobile phone.

Next, a mobile phone device according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a mobile phone device which is the device of this embodiment. The apparatus of this embodiment is equipped with a contact detection sensor 56 that can be operated by a user touching with a finger in addition to a normal key operation unit such as a numeric keypad 48. The contact detection sensor 56 includes a numeric keypad 48 and a numeric keypad. It is arranged in a region around 48.

  FIG. 2 is a perspective view showing a usage pattern of this embodiment. The user can perform an input operation by tracing the numeric keypad 48 and the contact detection sensor 56 (portion surrounded by a dotted line in FIG. 2) with its finger.

  As shown in FIG. 3, the mobile phone device 10 includes a communication unit 12 connected to an antenna 16. The communication unit 12 transmits a signal from a baseband unit 14 to be described later to the base station via the antenna 16 or receives a radio wave from the base station via the antenna 16.

  The communication unit 12 is connected to the baseband unit 14. The baseband unit 14 includes a CDMA processing circuit 18 and an audio codec 20. Here, the CDMA processing circuit 18 performs code division multiple access, scrambling, error control, and timing detection. The audio codec 20 compresses (encodes) and decompresses (decodes) audio, performs analog and digital conversion, and changes the received sound volume and microphone sensitivity by an internal amplifier circuit (not shown). .

  In addition, a switching circuit 22 is connected to the baseband unit 14. A first speaker 26 is connected to the switching circuit 22 via an amplifier circuit 24. The first speaker 26 converts the electric signal of the baseband unit 14 amplified by the amplifier circuit 24 into sound. This first speaker 26 is applied to the user's ear and used for a call.

  Further, the microphone 30 is connected to the switching circuit 22 via the amplifier circuit 28. The microphone 30 is used for a call and converts sound into an electrical signal. The electrical signal output from the microphone 30 is amplified by the amplifier circuit 28 and output to the baseband unit 14.

  Further, a second speaker 34 is connected to the switching circuit 22 via an amplifier circuit 32. The second speaker 34 converts the electric signal of the baseband unit 14 amplified by the amplifier circuit 32 into sound. The second speaker 34 is a loudspeaker for listening to the surrounding people of the received sound. The second speaker 34 also sounds an incoming call notification. Note that the gains of these three amplifier circuits 24, 28, and 32 are fixed, and the volume of the first speaker 26 and the second speaker 34 and the sensitivity of the microphone 30 cannot be changed.

  The switching circuit 22 is connected to the baseband unit 14 on the side of the amplifier circuit 24 for the first speaker 26 and the amplifier circuit 28 for the microphone 30, or the amplifier circuit 32 for the second speaker 34 for loud sound. And switching to the amplifying circuit 28 side for the microphone 30.

  A control circuit (control unit) 36 is connected to each of the communication unit 12, the baseband unit 14, and the switching circuit 22. Switching by the switching circuit 22 described above is performed under the control of the control circuit 36. The control circuit 36 controls the audio codec 20 of the baseband unit 14, and the audio codec 20 changes the volume of the first speaker 26 and the second speaker 34 and the sensitivity of the microphone 30. A ROM 38 is connected to the control circuit 36 and controls each part based on a system program stored in the ROM 38.

An input unit 44 is connected to the control circuit 36. The input unit 44 includes a numeric keypad 48 for inputting a telephone number and the like, a call key 50 for operating the start of a call, a switching key 52 for switching between a mode input using the numeric keypad 48 and a mode input from the contact detection sensor 56. , An OK key 54 and a clear key 55.
Here, the numeric keypad 48 includes input buttons 1 to 9, a # button, and an * button (12 buttons in the present embodiment). As shown in FIG. 4, contact detection sensors 56 that detect that the user has touched are provided on the surfaces of all the numeric keys 48 and the casing surface around the numeric keys 48. The contact detection sensor 56 is conventionally known, and for example, a transparent electrode or the like is used. The contact detection sensor 56 is electrically connected to a wiring pattern formed on the circuit board 58 (not shown), and the circuit board 58 is electrically connected to the control circuit 36. Therefore, a signal indicating that the user has touched the contact detection sensor 56 is input to the control circuit 36 via the contact detection sensor 56 and the circuit board 58.
In the present embodiment, the contact detection sensor 56 is disposed on the surface of the housing, but may be disposed inside the housing, such as the back surface of the housing and the key 48.

  The control circuit 36 is connected to an illumination unit 46 having a predetermined color LED element. The display (display unit) 42 is given a predetermined color by the light emission of the LED elements of the illumination unit 46.

  In the RAM 40, data in the form input from the touch detection sensor 56, numeric data input from the numeric keypad 48, and data in these forms or numeric data are input from either the touch detection sensor 56 or the numeric keypad 48. And data indicating these are stored, and these data are stored as a personal identification number. In addition, the RAM 40 stores a status flag indicating whether the mode is for inputting the password from the numeric keypad 48 or the mode for inputting the password from the touch detection sensor 56.

  The control circuit 36 has a buffer 71 for temporarily storing the password entered from the contact detection sensor 56. Detailed operation description will be described later.

  The apparatus of this embodiment has such a configuration. Next, the operation of the cellular phone device configured as shown in FIG. 3 will be described below.

  In the present embodiment, the key lock can be turned off (or turned on) when the user inputs a four-digit password using the contact detection sensor 56 and the numeric keypad 48. For example, FIG. 5 is a diagram showing a usage form of the contact detection sensor 56. When the password is registered, the user traces the contact detection sensor 56 as shown in FIG. When an input is performed and then the numeric keypad 48 is pressed, the input of 2, 3, and 4 is performed, and thus the password is registered. In the case of releasing the key lock using the registered personal identification number, similarly, the user traces on the contact detection sensor 56, for example, inputs 1 and then presses the numeric keypad 48. By inputting 2, 3, 4 the code number is entered and the key lock is released.

  Next, an operation when registering a personal identification number will be described. FIG. 6 is a flowchart showing an operation when registering a personal identification number.

  In step S1 of FIG. 6, the control circuit 36 turns on the state flag stored in the RAM 40 to enter the ten key registration state. In this state, the password can be registered with the numeric keypad 48 but cannot be input by tracing on the contact detection sensor 56.

  In step S <b> 2, the control circuit 36 determines whether or not the password is registered with the numeric keypad 48. Specifically, if it is determined that the status flag stored in the RAM 40 is ON, the process proceeds to step S3, and if not, the process proceeds to step S11.

  In step S3, if the control circuit 36 determines that the numeric keypad 48 is pressed, the process proceeds to step S4, and if not, the process proceeds to step S11.

  In step S4, the control circuit 36 displays a number corresponding to the numeric keypad 48 pressed in step S3 on the display 42, and proceeds to step S5.

  In step S5, if the control circuit 36 determines that the OK key 54 has been pressed, the process proceeds to step S6, and if not, the process proceeds to step S9.

  In step S 6, the control circuit 36 temporarily stores the numerical data displayed in step S 4 and data indicating input from the numeric keypad 48 in the buffer 71.

  In step S7, the control circuit 36 clears the display 42 and proceeds to step S8.

  In step S8, when the control circuit 36 determines that the data stored in the buffer 71 is four digits, the control circuit 36 stores the data in the RAM 40 and ends the registration process. On the other hand, if it is not 4 digits, the process returns to step S2.

  In step S9, when it is determined that the clear key 55 has been pressed, the control circuit 36 proceeds to step S10, and otherwise returns to step S5.

  In step S10, the control circuit 36 clears the display 42 and returns the process to step S2.

  Thus, in the numeric keypad registration state, each time the numeric keypad is pressed, the number corresponding to the pressed numeric keypad is temporarily stored in the buffer 71 as a password.

  In step S11, when the control circuit 36 detects a signal indicating that the finger has been touched from the contact detection sensor 56, the process proceeds to step S12, and if not, the process proceeds to step S18.

  In step S12, the control circuit 36 causes the display 42 to display the shape input from the contact detection sensor 56. For example, as shown in FIG. 5A, when the user traces the contact detection sensor 56 with a finger and the number “1” is drawn, the shape is displayed on the display 42.

  In step S13, if the control circuit 36 determines that the OK key 54 is pressed, the process proceeds to step S14, and if not, the process proceeds to step S16.

  In step S <b> 14, the control circuit 36 temporarily stores in the buffer 71 data in the form displayed in step S <b> 12 and data indicating input from the contact detection sensor 56.

  In step S15, the control circuit 36 clears the display 42 and advances the process to step S18.

  On the other hand, in step S16, if the control circuit 36 determines that the clear key 55 has been pressed, the process proceeds to step S17, and otherwise returns to step S13.

  In step S17, the control circuit 36 clears the display 42 and advances the process to step S18.

  In step S18, if the control circuit 36 determines that the data stored in the buffer 71 is four digits, the control circuit 36 stores the data in the RAM 40 and ends the process. On the other hand, if it is not 4 digits, the process proceeds to step S19. Return processing to the step.

  In step S19, if the control circuit 36 determines that the switching key 52 has been pressed, the process proceeds to step S20, and if not, the process returns to step S11.

  In step S20, the control circuit 36 rewrites the status flag stored in the RAM 40. Here, if it is the ten-key registration state, it is switched to the registration state by the contact detection sensor, and if it is the registration state by the contact detection sensor, it is rewritten to the ten-key registration state.

  In this manner, the RAM 40 receives the number input from the numeric keypad 48 and the data indicating that the number has been input from the numeric keypad 48, the data in the form input from the touch detection sensor 56, and the data in the form. And data indicating that it has been input from the detection sensor 56 are stored. That is, a 4-digit password is registered as a combination of a number input from the numeric keypad 48 and a graphic input from the contact detection sensor 56.

  Next, the operation of releasing the key lock when the key lock state is entered while the password is registered will be described below. FIG. 7 is a flowchart showing the operation at that time.

  When inputting the personal identification number in the key lock state, first, similarly to the registration operation, as shown in FIG. 6, the operations of steps S31 to S50 are performed. In step S51, the temporarily stored number (or Data) and data indicating whether the data is input from the numeric keypad 48 or the touch detection sensor 56 are stored in the buffer 71, and these data stored in the buffer 71 are stored in the RAM 40. Determine whether the data matches. If it is determined that they match, the control circuit 36 proceeds to step S52, and controls to release the key lock. On the other hand, if it does not match, the control circuit 36 proceeds to step S53, and displays, for example, “ "The password is different" is displayed, and the user is prompted to enter the password from the beginning.

  In this embodiment, the configuration is such that the data in the form input from the contact detection sensor 56 is stored. However, a number that approximates the data in the form input from the contact detection sensor 56 is calculated, and the number data It is good also as a structure memorize | stored as. In this case, for example, if the password is “1234”, “1” and “4” are numbers input by the numeric keypad 48, and “2” and “3” are numbers input by the contact detection sensor 56, Is the number data “1” and the data indicating that it has been input from the numeric keypad 48, the number data “2” and the data that is input from the touch detection sensor 56, the number data “3” and the touch detection sensor Data indicating that it has been input from 56, number data “1” and data indicating that it has been input from the numeric keypad 48 are stored. Similarly, when inputting a personal identification number in the key lock state, a number approximate to the data in the form inputted from the contact detection sensor 56 is calculated and stored as number data. Data indicating that the data is input from the contact detection sensor 56 may be compared to determine whether the passwords match.

  In the above-described embodiment, the number input using the contact detection sensor 56 has been described as an example. However, whether the input is performed by operating the numeric keypad 48 or the input by the contact detection sensor 56, the key is input by inputting the personal identification number. In the case of a configuration for unlocking, for example, the user often registers his / her date of birth, car number or consecutive number as a 4-digit password, and the key lock is easily released. There is a possibility that.

  In order to solve such a problem, for example, instead of a personal identification number, a character “s”, a symbol “triangle”, a figure “post mark”, a line “horizontal bar”, or a dot as shown in FIG. It is good also as a structure to register. By adopting such a configuration, it is possible to avoid that the information to be input becomes more complicated and the key lock is easily released by another person. Even in this case, instead of storing the shape data, figures, characters, symbols, and the like that approximate the shape input from the contact detection sensor 56 are calculated, and the characters, symbols, and figures obtained as a result of the calculation are calculated. It is good also as a structure which memorize | stores data.

  In the present embodiment, the present invention is implemented by a mobile phone device, but it can also be implemented in the same manner by a bank ATM (AUTOMATIC TELLER MACHINE), a PDA (PERSONAL DIGITAL ASSISTANCE), or the like.

It is a perspective view of the Example apparatus formed by applying this invention. It is a perspective view which shows the usage condition of a present Example apparatus. It is a block diagram of a present Example apparatus. It is sectional drawing which shows the contact detection sensor 56 vicinity. It is a display form of a present Example apparatus. It is a flowchart which shows operation | movement of an Example. It is a flowchart which shows operation | movement of an Example. It is a display form of a present Example apparatus.

Explanation of symbols

10 Mobile phone device 36 Control circuit 40 ROM
44 Input unit 48 Numeric keypad 56 Touch detection sensor 71 First buffer 72 Second buffer

Claims (4)

A numeric keypad and a contact detection sensor;
An input device, wherein a combination of a shape input by tracing the contact detection sensor and a number input from the numeric keypad can be registered as a personal identification number. A numeric keypad and a contact detection sensor;
An input device capable of distinguishing between a number input from the touch detection sensor and a number input from the numeric keypad and registering a combination thereof as a personal identification number. A numeric keypad, a contact detection sensor, a storage means for storing a combination of a shape input by tracing the touch detection sensor and a number input from the numeric keypad as a personal identification number, and operation of a specific function is prohibited. Control means for controlling,
When the control means determines that the same password as the password stored in the storage means is input from the contact detection sensor and the numeric keypad while the operation of the specific function is prohibited, An input device that controls to release the prohibition of operation of a specific function. A numeric keypad, a contact detection sensor, a storage means for distinguishing between a number input from the touch detection sensor and a number input from the numeric keypad and storing a combination of these as a password, and prohibiting the operation of a specific function Control means for controlling,
When the control means determines that the same password as the password stored in the storage means is input from the contact detection sensor and the numeric keypad while the operation of the specific function is prohibited, An input device that controls to release the prohibition of operation of a specific function.

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