JP2788883B2 - Mobile phone equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone device, and more particularly to a malfunction prevention mode for preventing an operation key from being pressed and malfunctioning due to accidental contact with another article or a part of a human body. The present invention relates to a mobile phone device having a function.

[0002]

2. Description of the Related Art A conventional portable telephone device is used when the portable telephone device is carried in a standby state (when the power is turned on and the telephone is not used) in, for example, a bag or a bag. Some devices have a function of switching to a malfunction prevention mode for preventing a malfunction of the mobile phone device due to contact between the operation keys and the contents of the bag and the bag. In this type of portable telephone device, in order to release the malfunction prevention mode, generally, a malfunction operation mode release operation key is operated to release the malfunction prevention mode. However, when canceling the malfunction prevention mode in order to enter the call when receiving a call in the malfunction prevention mode, it is troublesome to operate the release operation key each time to release it, which solves this problem For example, Japanese Patent Application Laid-Open No. 5-316
As disclosed in Japanese Patent Publication No. 201, there has been developed a device in which a malfunction prevention mode is automatically canceled when an incoming call is received.

[0003]

The above-mentioned conventional portable telephone device has the following disadvantages. (1) In the case of a mobile phone device in which the malfunction prevention mode is released by operating the operation keys, the mode for canceling the malfunction prevention mode is used to shift from the malfunction prevention mode to the call mode for a call. The key must be operated each time, which is troublesome. (2) In the case of a portable telephone device configured so that the malfunction prevention mode is automatically canceled when an incoming call is received, the malfunction prevention mode is set and the portable telephone device is placed in a bag, bag, or the like. After the incoming call is received and the malfunction prevention mode is automatically canceled in the bag, bag, or the like, if there is a contact between the operation key and the contents of the bag or bag, the accidental contact causes the portable telephone device to contact the user. May malfunction and enter the call mode without the knowledge of the carrier. Also,
The malfunction prevention mode is automatically canceled when you receive a call,
During removal of the mobile phone device from the bag, bag, or the like, the mobile phone device malfunctions due to contact between the operation keys and the contents of the bag or bag, or the hand of the person carrying the mobile phone device accidentally touches the operation key. Touching may cause the mobile phone device to malfunction. In addition, when the malfunction prevention mode is set to carry in a bag, bag, etc., if the carrier tries to make a phone call, it does not automatically release unlike the incoming call. The malfunction prevention mode must be canceled.

[0004] It is an object of the present invention to solve the above-mentioned problems by automatically canceling the malfunction prevention mode without key operation, and when carrying the camera in a bag, bag, or the like. It is an object of the present invention to provide a mobile telephone device which can delay release of the malfunction prevention mode for a short time until a hand is put in a bag or the like and taken out.

[0005]

SUMMARY OF THE INVENTION A portable telephone device according to the present invention prevents malfunctions caused by accidentally touching an operation key due to accidental contact with another article or a part of a human body. A mobile phone device provided with a malfunction prevention mode setting means for setting a mode, comprising : (A) a predetermined portion of the mobile phone device;
Are installed separately, each detecting contact with the human body
A plurality of touch sensor that outputs a touch detection signal, (B) monitors the output from the plurality of touch sensors, before
The touch sensor that outputs the touch detection signal is a predetermined
When the number is reached, the mobile phone device is gripped by hand
And outputs a malfunction prevention mode release request signal.
Chisensa output determining unit, caused by receiving the (C) operation prevention mode release request signal the erroneous
Operation and counts a predetermined time set in advance as the delay time.
When it counts, it outputs the malfunction prevention mode release request timer output signal.
A timer for outputting the malfunction prevention mode.
Receives the malfunction prevention mode release request timer output signal.
The malfunction prevention mode .

[0006]

[0007]

Further, in the portable telephone device of the present invention, the touch sensor is constituted by a touch sensor using a piezoelectric element.

Further, in the portable telephone device according to the present invention, the touch sensor is configured to detect a contact with the human body by short-circuiting a plurality of conductors to which a potential is applied with a part of the human body. Consists of sensors.

[0010]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the portable telephone device of the present invention.

The portable telephone device according to the present embodiment shown in FIG. 1 prevents malfunctions caused by accidentally touching operation keys due to accidental contact with another article or a part of the human body. A malfunction prevention mode setting means for setting a mode, canceling the malfunction prevention mode by receiving an instruction signal for canceling the malfunction prevention mode, and dispersely provided in a predetermined portion of the mobile phone device And n (n is a positive integer of 2 or more) touch sensors 2 a to 2 n each detecting a contact with a human body and outputting a touch detection signal.
2b, monitoring the outputs from the n touch sensors and, when the number of touch sensors outputting the touch detection signal reaches a predetermined number, it is determined that the mobile phone device is grasped by hand, and the malfunction prevention mode is set. A touch sensor output determining means 3 for outputting a release request signal, and an instruction signal for releasing the malfunction prevention mode when receiving and starting the malfunction prevention mode cancellation request signal and counting a predetermined time set as a delay time in advance. And a timer 4 for outputting a malfunction prevention mode release request timer output signal to the malfunction prevention mode setting means 1.

Next, the operation will be described.

In FIG. 1, when the portable telephone device is carried in a bag, a bag, or the like, the malfunction prevention mode setting means 1 accidentally includes another article (the contents of the bag) in the bag, the bag, or the like. ) Or a part of the human body comes into contact with operation keys of a keyboard (not shown) of the mobile phone device, so that an operation key of the keyboard is depressed and malfunction of the mobile phone device is prevented. When the malfunction prevention mode is set, a malfunction prevention mode setting key (not shown) on the keyboard of the mobile phone device is provided.
Is set by pressing. n touch sensors 2
The touch sensors 2a to 2b are provided separately at predetermined locations of the mobile phone device, and each of the touch sensors 2a to 2b is brought into contact with the human body when the wearer grips a predetermined portion of the mobile phone device. To detect the touch detection signal 12
a to 12b are output to the touch sensor output determination means 3.
The touch sensor output determination means 3 outputs a touch detection signal 12 which is an output signal from the n touch sensors 2a to 2b.
a to 12b are constantly monitored, and when the number of touch sensors that output the touch detection signal reaches a predetermined number, it is determined that the mobile phone device is gripped by hand, and the malfunction prevention mode release request signal 13 is output to the timer 4 Output to The timer 4 starts upon receiving the malfunction prevention mode release request signal 13 and counts a predetermined time set in advance as a delay time.
The malfunction prevention mode release request timer output signal 14 is output to the malfunction prevention mode setting means 1 as an instruction signal for canceling the malfunction prevention mode. Malfunction prevention mode setting means 1
Is the malfunction prevention mode release request timer output signal 14
To release the malfunction prevention mode.

As described above, the malfunction prevention mode can be released only by grasping the portable telephone device with the hand, and the malfunction prevention mode is released only after the portable telephone device is grasped by the hand and the predetermined time set in the timer is set. After the time has passed,
The malfunction prevention mode is not released until the mobile phone device is removed by putting a hand in a bag or a bag, such as when carrying the device in a bag or the like. Even if there is contact between the hand and the operation keys or between the contents of the bag and the operation keys, the mobile phone device does not malfunction.

The above-described portable telephone device of the present embodiment shown in FIG. 1 is provided with a timer 4, and receives a malfunction prevention mode release request signal 13 output from the touch sensor output determination means 3. In order to prevent the malfunction prevention mode setting means 1 from immediately canceling the malfunction prevention mode, the timer 4 delays the request signal to the malfunction prevention mode setting means 1 for canceling the malfunction prevention mode by a predetermined time. However, when the portable telephone device is not carried in a bag, a bag, or the like, the malfunction prevention mode release request signal 13 output from the touch sensor output determination means 3 without the timer 4 immediately causes the failure. What is necessary is just to comprise so that the malfunction prevention mode setting means 1 may cancel the malfunction prevention mode.

In the above description, the touch sensors 2a to 2b
Has been described as n, but two or more touch sensors are required for the following reason. If only one touch sensor is used, there is a possibility that the malfunction prevention mode may be canceled even if the user accidentally touches an operation key of the keyboard while not intending to talk. In the case of at least two or more touch sensors, it is considered that the probability of simultaneously touching two locations is reduced if it is an accidental contact, and the malfunction prevention mode is released by accidental contact. Danger can be reduced. As the number of touch sensors increases, accidental contact can be eliminated and the state of being held by the hand can be reliably detected. But,
Since it is a handy-type mobile phone device, it is not possible to provide too many touch sensors, and the cost increases as the number increases. Therefore, in implementing the present invention, it is naturally necessary to provide an optimal touch sensor from the viewpoint of product design. The number will be selected.

Further, the touch sensor output determining means 3 determines that n
The touch detection signals 12a to 12b, which are output signals from the touch sensors 2a to 2b, are constantly monitored. When the number of touch sensors that output the touch detection signals reaches a predetermined number, the mobile phone device is grasped by hand. However, for example, when the number of touch sensors is two, three, or four, a touch sensor that outputs a touch detection signal that can determine that the mobile phone device is grasped by a hand is used. The following may be considered as the predetermined number. When the number of touch sensors is two, the number of touch sensors that output a touch detection signal that can determine that the mobile phone device is grasped with a hand is the same as the number of touch sensors provided in the mobile phone device. And Even when the number of touch sensors is three, the number of touch sensors that output a touch detection signal is the same as the number of touch sensors provided in the mobile phone device.
However, when the number of touch sensors is four, the number of touch sensors that output a touch detection signal is three or more. In this case, the three touch sensors that output the touch detection signals may be any of the four touch sensors provided in the mobile phone device. If it is advantageous to determine that is held by the hand, it may be configured to always include a touch sensor provided at a specific location of the mobile phone device.

The touch sensor is configured to detect a contact with a human body by short-circuiting a part of the human body between a plurality of conductors provided on the surface of the portable telephone device and given a potential. There is a sensor, that is, a touch sensor of a type that detects a change in electrical conduction, a touch sensor using a piezoelectric element, and the like. In the case of the former touch sensor, for example, if the contents of the bag, bag, etc. do not include conductive materials when carried in a bag, bag, etc., the contents of the bag, bag, etc. Even if the sensor comes into contact with an object, it does not malfunction due to the pressure due to the contact and is more advantageous than the latter sensor.However, if the sensor contains a conductive material, the malfunction may occur, and the latter may occur. It is more disadvantageous than the sensor. On the other hand, in the case of the latter touch sensor, the presence or absence of conductivity of the contents of the bag, bag, etc. is irrelevant, but if the sensor contacts the contents of the bag, bag, etc., a malfunction may occur. Will occur. Therefore, it is necessary to select which sensor to select in consideration of the usage conditions of the mobile phone device to which the present invention is applied.

[0020]

As described above, the portable telephone device according to the present invention comprises a plurality of touch sensors which are provided at predetermined positions of the portable telephone device and output a contact detection signal, and a touch sensor which outputs a contact detection signal. When the number of sensors reaches a predetermined number, a touch sensor output determination unit that determines that the mobile phone device is being gripped by hand and outputs a malfunction prevention mode release request signal, and a signal output from the touch sensor output determination unit. By providing a timer that delays by a predetermined time and outputs it to the malfunction prevention mode setting means, the following effects are obtained.

Even if the malfunction prevention mode is set, the handset is automatically shifted from the malfunction prevention mode to the communication mode when grasped with a hand for a call. There is no need to perform key operations.

Further, the malfunction prevention mode is not immediately released even if the hand is gripped, but the cancellation of the malfunction prevention mode is delayed for a short time. The malfunction prevention mode is not released for a short time until the hand is put in the bag or the like, and the hand and the operation keys are touched to take it out of the bag or the bag. Even if there is a contact between the contents and the operation keys, the mobile phone device does not malfunction.

Also, since the malfunction prevention mode is not automatically released upon receiving an incoming call, when the portable telephone device is placed in a bag, bag, or the like, the operation keys come into contact with the contents of the bag or bag, and the portable telephone device is turned off. There is no possibility that a malfunction will occur and the user will not enter the call mode without knowing.

[Brief description of the drawings]

FIG. 1 is a block diagram showing one embodiment of a mobile phone device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Malfunction prevention mode setting means 2a-2b Touch sensor 3 Touch sensor output determination means 4 Timer 12a-12b Touch detection signal 13 Malfunction prevention mode release request signal 14 Malfunction prevention mode release request timer output signal

Claims (3)

(57) [Claims] 1. A malfunction prevention mode setting means for setting a malfunction prevention mode for preventing an operation key from being pressed and malfunctioning due to accidental contact with another article or a part of a human body. (A) a plurality of touch sensors provided separately in predetermined portions of the mobile phone device, each of which detects a contact with a human body and outputs a touch detection signal; Monitoring the outputs from the plurality of touch sensors and, when the number of the touch sensors that output the touch detection signal reaches a predetermined number, determines that the mobile phone device is gripped by a hand and prevents a malfunction; Touch sensor output determining means for outputting a release request signal; (C) receiving the malfunction prevention mode release request signal and starting, and counting a predetermined time set in advance as a delay time A timer that outputs a malfunction prevention mode release request timer output signal when the malfunction prevention mode setting means receives the malfunction prevention mode release request timer output signal and cancels the malfunction prevention mode. A mobile phone device characterized by the above-mentioned. 2. The portable telephone device according to claim 1 , wherein
The mobile phone device, wherein the touch sensor is a touch sensor using a piezoelectric element. 3. The portable telephone device according to claim 1 ,
The mobile phone device is characterized in that the touch sensor is a touch sensor configured to detect contact with the human body by short-circuiting a plurality of conductors to which a potential is applied at a part of the human body.