JP2009152679A - Communication device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To light a backlight only when it is truly required while reducing power consumption. <P>SOLUTION: In a communication device which is in a key-lock state and power-saving mode by execution of prescribed key operation, when a control circuit detects a signal indicating that key operation is executed from an input part (a step S9) and when determines that a key-lock flag stored in a RAM is ON (a step S10), it determines operation of a specific key for releasing a key-lock state (a step S11). Then, an instruction screen for inputting a personal identification number into a display is displayed, and simultaneously, a backlight is lit while maintaining a turned-off state of a lighting part of the input part (a step S12). When determined that the input personal identification number matches with the personal identification number previously stored in the RAM (a step S13), the key-lock state is released by turning OFF the key-lock flag stored in the RAM while also simultaneously releasing a power-saving mode (a step S14). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a communication apparatus having a key lock function that disables subsequent key operations by performing predetermined operations.

  In a conventional communication device (for example, a straight type mobile phone device), the key is exposed. Therefore, if the mobile phone device is left in a pocket or a bag, the key may be accidentally pressed.

  In order to prevent this, so-called key lock that disables subsequent key operations when a predetermined operation is performed, and cancels the key operation disabled state when a predetermined operation is performed in this key operation disabled state (key lock state). Mobile phone devices with functions have been commercialized.

  There are two types of functions in the key lock function. The first is a key lock function to avoid a situation where the key is accidentally pressed when a straight type mobile phone device is put in the pocket as described above, and temporarily avoids an erroneous operation of the key. Is the target key lock function. In order to execute such a key lock function, it is usually possible to execute the key lock state by continuously pressing a predetermined key for a predetermined time (for example, 2 seconds) or longer. To cancel, it is possible to cancel by a simple operation such as pressing a predetermined key again continuously for a predetermined time or more.

  The second is a key lock function for avoiding the use of the mobile phone device by another person when the user loses the mobile phone. In order to execute such a key lock function, it is usually possible to execute the key lock function by inputting a predetermined key operation and a password (for example, 4 digits), and then cancel the key lock state. Can be canceled by inputting a predetermined key operation and a password (for example, four digits) again.

Various techniques relating to such a key lock function have been proposed. For example, Patent Document 1 stores a key pressing procedure in the memory of a mobile phone instead of inputting a personal identification number. A technique has been proposed in which a key is locked when there is a key operation.
JP 2003-283649 A

  Although the technique described in Patent Document 1 is a technique for preventing a third party from releasing the key lock state, no consideration is given to reducing the power consumption of the battery of the mobile phone as much as possible. . Even in view of the recent energy situation in the world, it is a very important issue not to consume power as much as possible.

  Therefore, an object of the present invention is to provide a communication device that can reduce the power consumption of the battery as much as possible even when the key lock is being executed, and that consumes the battery power only when it is necessary for the user. .

  When a plurality of predetermined keys are operated, the communication device according to claim 1 enters a power saving mode in which the backlight of the display unit is prohibited from being turned on even if the key lock state and the key operation are performed. A first key lock function for releasing the key lock state when the entered password is input, and when a predetermined key is continuously pressed for a predetermined time, the key lock state and the power saving mode are set. A second key lock function for releasing the key lock state when the predetermined one key is continuously pressed again for a predetermined time in the key lock state, and the first key When a password is entered in the key lock state of the lock function, the backlight of the display is turned on for a certain period of time. When the password is successfully entered, the key lock state and power saving mode are canceled. On the other hand, when the predetermined one key is pressed in the key lock state in the second key lock function, the key lock state and the power saving mode are canceled without turning on the backlight. It is characterized by.

  A communication device according to a second aspect is the communication device according to the first aspect, wherein when the incoming call is received during the power saving mode, lighting of the backlight is permitted.

  According to a third aspect of the present invention, there is provided a communication device comprising: an input unit; an illumination unit for a display unit; The first key lock means for releasing the key lock state and the power saving mode when a password is input from the input means, and a predetermined key from the input means for a predetermined time continuously. When the key is pressed, the key lock state and the power saving mode are entered. In the key lock state, when the predetermined key is continuously pressed again from the input means for a predetermined time, the second state is released. A key lock means, and when it is determined that there is a password input operation from the input means in a key locked state by the first key lock means, the illumination means of the display unit is turned on for a certain period of time. When the password is successfully input, the key lock state and the power saving mode are canceled, and it is determined that the predetermined key is continuously pressed for a predetermined time in the key lock state of the second key lock unit. Then, it has a control means for controlling to release the key lock state and the power saving mode.

  The communication device according to claim 4 is the communication device according to claim 3, further comprising an incoming call detection unit, and when the detected incoming call detection unit determines that an incoming call has been detected during the power saving mode, the illumination unit Is allowed to turn on.

  The communication device according to claim 5 includes an input unit and a control circuit, and prohibits the key lock state and the backlight of the display unit from being turned on when a predetermined key is continuously pressed for a predetermined time. The communication device has a key lock function for releasing the key lock state when the predetermined key is continuously pressed again for a predetermined time, and the key operation is performed in the key lock state. If there is any key operation, the backlight is turned off, and when the predetermined key is continuously pressed for a predetermined time, the key lock state and the power saving mode are canceled. And

  According to the communication device of the first and third aspects, it is possible to reduce the power consumption of the battery as much as possible even in the key lock state, and it is possible to consume the power of the battery only when it is necessary for the user. Further, in the communication device according to claims 2 and 4, since the backlight is turned on when an incoming call is received, the user can easily recognize who is receiving the call even in the power saving mode.

  In the communication device according to the fifth aspect of the present invention, power consumption can be suppressed as much as possible by preventing the backlight of the display unit from being turned on even when there is a key operation in the key lock state.

  FIG. 1 is a perspective view of a mobile phone device according to an embodiment of the present invention. The main body 1 and the lid body 2 can be freely opened and closed by a hinge mechanism. When using the mobile phone device, the user can open the lid 2 and then perform a predetermined operation to place the mobile phone device in a key lock state and enter a power saving mode.

  The apparatus of this embodiment can execute two types of key lock functions. The first is a key that can be turned on / off by entering a personal identification number, by entering a predetermined personal identification number to place the device in a key-locked state and then again entering a predetermined personal identification number to release the key-locked state. A lock function (hereinafter referred to as a key lock function A), and the second is that the device is key-locked by continuously pressing a predetermined key for a predetermined time (for example, 2 seconds) for a predetermined time again. This is a function (hereinafter referred to as a key lock function B) for releasing the key lock state of the device by continuously pressing the key for a predetermined time or more.

  Further, in the present embodiment apparatus, at the same time as the key lock state is entered, the mode shifts to the power saving mode. This power saving mode is a mode in which the backlight 61 of the display 60 and the illumination unit 45 of the input unit 40 are kept off. Even if there is a key operation during the power saving mode, at least the backlight 61 and the illumination. The turn-off of the part 45 is maintained.

  Furthermore, in this embodiment, when an operation for releasing the key lock (for example, input of a password) is performed in a state where the key lock function A is being executed (key lock state A), In this way, the power saving mode is canceled and the backlight 61 of the display 60 is turned on. Thus, in the key lock state A, the backlight 61 is turned on only when an operation for releasing the key lock is performed. Since it is turned on, the user can recognize what kind of password has been input.

  On the other hand, in the state of the key lock function B (key lock state B), since the key lock state is released by the user continuously pressing a predetermined key, what number is input by the user. There is no need to confirm. For this reason, the backlight 61 is kept off even when the key lock state B is released.

  As described above, in the apparatus according to the present embodiment, the battery is consumed as much as possible because the key lock state and the power saving mode are set. Furthermore, since the backlight 61 is turned on only when it is necessary to confirm what the user has entered, such as the input of a personal identification number, the backlight 61 can be turned on only when it is really necessary for the user.

  FIG. 2 is a block diagram showing a schematic configuration of a mobile communication apparatus according to an embodiment of the present invention. As shown in FIG. 2, the control circuit 30 of the mobile communication device is connected to the baseband unit 10, the communication unit 13, and the input unit 40. A ROM 31 and a RAM 32 are connected to the control circuit 30. A system program for operating the control circuit 30 is stored in the ROM 31, and various information necessary for the operation of the control circuit 30 is stored in the RAM 32. . The RAM 32 stores a key lock flag A, which is a flag indicating whether or not the key lock state is A, and a key lock flag B which is a flag indicating whether or not the key lock state is B. Yes.

  The baseband unit 10 includes a CDMA processing circuit 11 and an audio codec 12. Here, the CDMA processing circuit 11 performs code division multiple access, scrambling, error control, and timing detection. The audio codec 12 compresses (encodes) and decompresses (decodes) the audio, performs analog and digital conversion, and changes the received sound volume and microphone sensitivity using an internal amplifier circuit (not shown). .

  The communication unit 13 is connected to a baseband unit 10 described later, and transmits a signal from the baseband unit 10 to the base station via the antenna 14 or receives a radio wave from the base station via the antenna 14. To do.

  An input unit 40 is connected to the control circuit 30. The input unit 40 includes a numeric keypad 41 for inputting a telephone number and the like, a call key 42 for operating the start of a call, a cut key 43 for operating the end of the call, and an OK key 44.

  The control circuit 30 is connected to a display 60 made of, for example, an LCD (Liquid Crystal Display) and a backlight 61 for irradiating the LCD with light, and for example, an LED (Light Emitting Diode) for irradiating the input unit 40 with light. ) Is connected.

  Next, the operation of the apparatus of this embodiment will be described below. 3 and 4 are flowcharts showing the operation of the apparatus of this embodiment.

  FIG. 3 is a flowchart showing the operation of the apparatus of this embodiment. In step S1 in FIG. 3, when the control circuit 30 detects a key operation from the input unit 40, the control circuit 30 proceeds to step S2.

  In step S2, the control circuit 40 determines that the key operation detected in step S1 is an instruction operation for setting the device to the key lock state A (for example, a predetermined four-digit password after pressing a predetermined key). If not, the process proceeds to step S3. Otherwise, the process proceeds to step S5.

  In step S3, the control circuit 30 turns on the key lock flag A stored in the RAM 32, and advances the process to step S4.

  In step S4, the control circuit 30 sets the apparatus to the power saving mode. For example, the backlight 61 is turned off and the illumination unit 45 is turned off, and even if a subsequent operation (key operation other than the release operation of the key lock state A) is detected from the input unit 40, the light is kept off. However, when a specific key is operated while the key lock state A is activated, the power saving mode is canceled for a predetermined time. When there is an incoming call, the backlight 61 or the illumination unit 45 may be turned on. Subsequently, the control circuit 30 advances the processing to step S9 in FIG.

  In step S5, the control circuit 30 performs the key operation detected in step S1 as an operation for setting the device in the key lock state B (for example, continuously pressing the OK key 44 for a predetermined time (for example, 2 seconds) or more). If it is determined that there is, the process proceeds to step S6, and if not, the process proceeds to step S8.

  In step S6, the control circuit 30 turns on the key lock flag B stored in the RAM 32, and proceeds to step S7.

  In step S7, the control circuit 30 sets the apparatus to the power saving mode. For example, the backlight 61 is turned off and the illumination unit 45 is turned off, and this turn-off is maintained even if a subsequent operation is detected from the input unit 40. When there is an incoming call, the backlight 61 or the illumination unit 45 may be turned on. Subsequently, the control circuit 30 advances the processing to step S9 in FIG.

  In step S8, the control circuit 30 executes a function corresponding to the key operation in step S1 except for the operation for turning on the key lock state, and returns the process to step S1.

  Subsequently, in step S9 of FIG. 4, when the control circuit 30 detects a signal indicating that there is a key operation from the input unit 40, the process proceeds to step S10.

  In step S10, if the control circuit 30 determines that the key lock flag A stored in the RAM 32 is ON, the process proceeds to step S11, and if not, the process proceeds to step S17.

  In step S11, when the control circuit 30 determines that the key operation detected in step S9 is an operation of a specific key instructing the start of input of a password for releasing the key lock state A, the process proceeds to step S12. If not, the process proceeds to step S17.

  In step S12, the control circuit 30 controls the display 60 so as to display a screen for instructing input of a personal identification number. At the same time, the backlight 61 of the display 60 is turned on and the illumination unit 45 of the input unit 40 is kept off, and the process proceeds to step S13.

  In step S13, if the control circuit 30 determines that the input personal identification number matches the personal identification number stored in the RAM 32 in advance, the process proceeds to step S14. Otherwise, the process proceeds to step S15.

  In step S14, the control circuit 30 releases the key lock state A by turning off the key lock flag A stored in the RAM 32, and returns the process to step S1 in FIG. Note that the power saving mode is also released at the same time as the key lock state A is released. Thereafter, the backlight 61 is turned on for a predetermined time according to the key operation.

  In step S15, the control circuit 30 is controlled to display a screen for instructing input of the personal identification number on the display 60, and a predetermined time has passed without detection of coincidence of the personal identification number in step S13. If so, the process proceeds to step S16. If the predetermined time has not elapsed, the process returns to step S13.

  In step S16, the control circuit 30 erases the screen for instructing the input of the code number on the display 60, and subsequently displays an error for a predetermined time (for example, displays a message that the code number is different). Further, after the error display is completed, the control circuit 30 turns off the backlight 61 of the display 60 and returns the process to step S9.

  In step S17, if the control circuit 30 determines that the key lock flag B stored in the RAM 32 is ON, the process proceeds to step S18, and if not, the process proceeds to step S21.

  In step S18, the key operation detected in step S9 is an operation for releasing the key lock state B (for example, pressing the OK key 44 continuously for a predetermined time (for example, 2 seconds) or longer). If YES, the process proceeds to step S19, and if not, the process proceeds to step S21.

  In step S19, the control circuit 30 releases the key lock state B by turning off the key lock flag B stored in the RAM 32, and returns the process to step S1 in FIG. Note that the power saving mode is also released at the same time as the key lock state B is released, and thereafter, the backlight 61 is turned on for a predetermined time in accordance with the key operation.

  In step S20, the function corresponding to the key operated in step S9 is executed, and the process returns to step S9.

  In step S21, a message indicating the key lock state B is displayed on the display 60, the display is cleared, and the process returns to step S9.

  As described above, in the apparatus according to the present embodiment, the power saving mode is entered at the same time as the key lock state is entered. This power saving mode is a mode in which the backlight 61 of the display 60 and the illumination unit 45 of the input unit 40 are kept off. Even if there is a key operation during the power saving mode, the backlight 61 or the illumination unit The turn-off of 45 is maintained.

  Furthermore, in this embodiment device, when an operation for releasing the key lock (for example, input of a personal identification number) is performed in the key lock state A, the backlight 61 of the display 60 is turned on. Thus, since the backlight 61 is turned on only when an operation for releasing the key lock is performed, the user can recognize what password has been input.

  On the other hand, since the key lock state B is released by continuously pressing a predetermined key in the key lock state B, it is not necessary for the user to confirm what number is input. For this reason, the backlight 61 is kept off even when the key lock state B is released.

  As described above, in the apparatus according to the present embodiment, the battery is consumed as much as possible because the key lock state and the power saving mode are set. Furthermore, since the backlight 61 is turned on only when confirming what the user has input, such as the input of a personal identification number, the backlight 61 can be turned on only when it is truly necessary for the user.

  In this embodiment, the power saving mode is set in the key lock state. However, when an incoming call is received in the key lock state, the backlight 61 of the display 60 and the illumination unit 45 of the input unit 40 are turned on at that time. It may be configured. With such a configuration, the user can know who the incoming call is from.

  In the present embodiment, only the backlight 61 of the display 60 is turned on in step S12. However, the backlight 61 is turned on and the illumination unit 45 of the input unit 40 is turned on simultaneously. In step S19, the input unit 40 is turned on. The illumination unit 45 may not be turned on.

It is a perspective view of the communication apparatus concerning one Example of this invention. It is a block diagram of the communication apparatus concerning one Example of this invention. It is a flowchart which shows operation | movement of a present Example apparatus. It is a flowchart which shows operation | movement of a present Example apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Main body 2 ... Cover 10 ... Baseband part 11 ... CDMA processing circuit 12 ... Audio codec 13 ... Communication part 14 ... Antenna 30 ... Control circuit 31 ... ROM
32 ... RAM
40 ... input unit 41 ... numeric keypad 42 ... call key 43 ... off key 44 ... OK key 45 ... illumination unit 60 ... display 61 ... backlight

Claims (5)

When a plurality of predetermined keys are operated, the key lock state and the power saving mode for prohibiting the backlight of the display unit from being turned on even if the keys are operated are entered, and a predetermined password is input. A first key lock function for releasing the key lock state;
When a predetermined key is continuously pressed for a predetermined time, the key lock state and the power saving mode are entered, and the predetermined key is again pressed continuously for a predetermined time in the key locked state. And a second key lock function for releasing the key lock state,
When the password input operation is performed in the key lock state in the first key lock function, the backlight of the display unit is turned on for a certain period of time, and when the password is successfully input, the key lock state and the power saving mode are canceled. On the other hand, when the predetermined one key is pressed in the key lock state in the second key lock function, the key lock state and the power saving mode are canceled without turning on the backlight. A communication device characterized by the above. The communication device according to claim 1,
The communication device, wherein an incoming call is received during the power saving mode, the lighting of the backlight is permitted. Input means, illumination means of the display unit,
When there are a plurality of predetermined key operations from the input means, a key lock state and a power saving mode for prohibiting lighting of the illumination means of the display unit even if a key operation is performed, and when a password is input from the input means The first key lock means for canceling the key lock state and the power saving mode, and when a predetermined key is continuously pressed for a predetermined time from the input means, the key lock state and the power saving mode are entered, and the key lock Second key lock means for releasing the key lock state when the predetermined key is continuously pressed again from the input means for a predetermined time in a state,
If it is determined that there is a password input operation from the input means in the key lock state by the first key lock means, the illumination means of the display unit is turned on for a certain period of time. When the power mode is canceled, and when it is determined that the predetermined key is continuously pressed from the input unit for a predetermined time in the key lock state of the second key lock unit, the key lock state and the power saving mode are canceled. And a control means for controlling the communication device. A communication device according to claim 3,
The communication apparatus further comprises an incoming call detection means, and permits the lighting means to be lit when it is determined that the detected incoming call detection means has detected an incoming call during the power saving mode. An input unit and a control circuit;
When a predetermined key is continuously pressed for a predetermined time, the key lock state and the power-saving mode for prohibiting the backlight of the display unit from being turned on are entered, and the predetermined key is continuously input for a predetermined time again. Is a communication device having a key lock function for releasing the key lock state when pressed,
If there is a key operation in the key lock state, the backlight is turned off no matter what key operation is performed, and if one predetermined key is continuously pressed for a predetermined time, A communication apparatus for canceling a power mode.

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