JPH09238376A - Portable terminal equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid trouble on surrounding persons and mental pain of a possessor of the portable terminal equipment in the case of reply to an incoming call when the possessor of the portable terminal equipment waits for an incoming call in a vehicle such as a train. SOLUTION: When a luminous quantity sensor 23 senses an increase in a luminous quantity during arrival of an incoming call, a control section 26 reduces an incoming tone volume outputted from a buzzer 21. When a touch sensor 25 senses it that a finger or the like of the possessor touches on the terminal equipment, the control section 26 similarly reduces the incoming tone volume. As a result, when the possessor of the terminal equipment receiving an incoming call in a vehicle such as a train extracts the terminal equipment from a bag or the like to reply the incoming call, since the luminous quantity is increased and the incoming ring tone is reduced, trouble on surrounding persons and metal pain on the possessor are avoided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile terminal device which receives an incoming signal by a radio signal and notifies the incoming call.

[0002]

2. Description of the Related Art When a mobile terminal such as a pager or a PHS telephone receives an incoming call by a radio signal, a buzzer provided inside the incoming call rings to notify the owner of the terminal of the incoming call. There is. Here, when the owner of the terminal notices an incoming call and presses a predetermined key, the ringing of the incoming call stops, and in this case, the owner of the pager recognizes who made the call and what the message is from the displayed status. be able to. Further, in the case of a mobile wireless telephone terminal, it is possible to immediately talk with the called party.

[0003]

Such a portable terminal is usually carried in a bag or pocket,
When the incoming call rings, the owner takes it out of the bag or pocket and operates the predetermined key to answer the call. Here, even if the owner of the mobile terminal is in a car such as a train or bus, it is possible to call the mobile terminal,
In such a case, if the owner tries to answer the call and takes out the mobile terminal from the bag or the like, the large ringing noise causes annoyance to the passengers in the surroundings, and for that reason, the owner of the terminal is mentally disturbed. There was a problem of giving great pain.

Therefore, according to the present invention, when the owner of a portable terminal such as a wireless terminal receives a call in a car such as a train, and when the portable terminal being called is taken out from a bag or the like in order to answer the call, an incoming call ringing sound is generated. The purpose is to eliminate the annoyance to the surroundings and the mental distress to the owner by enabling reduction.

[0005]

SUMMARY OF THE INVENTION In order to solve such a problem, the present invention detects a change in the amount of light with respect to a portable terminal device, and an increase in the amount of light is detected by a light amount detection sensor when receiving a call. At times, a control means for reducing the incoming call volume is provided. Therefore, when an increase in the amount of light with respect to the mobile terminal device is detected when an incoming call arrives, the incoming call volume is reduced. As a result, when the owner of this mobile terminal receives an incoming call in a car such as a train, and when the mobile terminal being called is taken out from the bag or the like to respond to this incoming call, the amount of light increases and the ringing noise is reduced. Therefore, it is possible to eliminate the nuisance to the surroundings and the mental distress to the owner. Further, a touch sensor for detecting the presence or absence of contact of the human body with the portable terminal device is provided, and the control means reduces the volume of the ringing tone according to the detection output of the touch sensor. As a result, when the mobile terminal device is touched by hand to answer the incoming call, the ring tone can be further reduced.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a portable terminal device according to the present invention. In the figure, reference numeral 11 is a wireless transmission / reception unit that performs wireless communication with a base station (not shown) via an antenna AT, 12 is a modem demodulator for demodulating a received wireless signal, 13 and 15 are channel codecs, 14 is a voice codec, and 16 is a codec. Is a modem modulator which modulates data and voice signals and gives them to the wireless transmission / reception unit 11, 17 is a receiver,
18 is a microphone.

Further, 19 is a keyboard such as a dial key, 20 is a display, 22 is a volume changing circuit for changing the volume given to the buzzer 21, and 24 is A / D conversion of the output of the light amount detecting sensor 23 for detecting the light amount. An A / D converter, 25 is a touch sensor which is attached to the housing panel of the present device and detects whether or not a human body is in contact with the present device, and 26 is a control unit which controls each of the above units.

In the portable terminal device 1 configured as described above, when a calling operation is performed by the keyboard 19, the control unit 26 detects it and gives operation data to the modem modulator 16, and wireless transmission / reception. By controlling the unit 11, the transmission request data is transmitted from the wireless transmission / reception unit 11 and the antenna AT to the base station side via the control channel of the wireless line. As a result, when the other party is called and the other party answers, the call is made with the other party via the communication channel of the wireless line instructed by the base station.

Further, a calling signal from the base station side via the control channel of the wireless line is transmitted to the antenna AT and the wireless transmission / reception unit 11
When receiving via the modem demodulator 12, the control unit 26
Controls the volume varying circuit 22 to ring the buzzer 21. After that, when the operation of the call key on the keyboard 19 is detected, it is determined that the call is answered, and a response signal is given to the modem modulator 16 to be transmitted to the base station side, and then the call channel is instructed from the base station side. An incoming call is made through the call channel.

A call to such a mobile terminal device can be made even when the terminal is in a car such as a train or a bus. In such a case, the owner of the mobile terminal attempts to answer the call. When the terminal is taken out of a bag or the like, there is a problem that the ringing sound of the terminal disturbs the surroundings. There is also a problem that the owner of the terminal feels emotional pain because of that. For this reason, in this device, the above-described light amount detection sensor 23 is provided so that the holder takes out the portable terminal from the bag or the like while receiving an incoming call to the portable terminal, and thus reduces the incoming call volume when the light amount of the terminal changes. In this way, it will be possible to eliminate the nuisance to the surroundings and the emotional distress to the owner. Further, when the touch sensor 25 is provided and the contact of the human body with respect to the portable terminal is detected through the touch sensor 25, the ringing volume can be similarly reduced.

FIG. 2 is a circuit diagram showing a specific structure of the touch sensor 25, which is composed of a field effect transistor Q and two resistors R1 and R2. Here, the gate of the field effect transistor Q is connected to the conductor region 10A provided on the surface of the casing panel 10 of the present mobile terminal device 1 shown in FIG. 3, and as shown in FIG. 1
The conductor region 10B is adjacent to the conductor region 10A on the surface of 0
Is provided, and the conductor region 10B is connected to the ground. The field effect transistor Q is normally in the off state. In this case, the field effect transistor Q is
The output of is maintained at the "L" level by the resistor R2 having one end connected to the ground, and this "L" level output is given to the control unit 26.

Here, the human body is connected to the conductor regions 10A and 10B.
When the conductor regions 10A and 10B are brought into conduction through the human body, the conductor region 10B is connected to the ground, so that the gate of the field effect transistor Q is at the ground level (“L” level). become. Therefore, the field effect transistor Q is turned on, and a current flows from the power source Vcc in the direction of the resistor R2 (that is, from the source to the drain), and as a result, the control unit 26 is provided with a signal of "H" level. In this way, the touch sensor 25
The control unit 26 outputs a signal of either "H" or "L" level depending on whether or not a human body touches the device 1.

FIG. 3 is a view showing the outer appearance of the mobile terminal device 1. In addition to the antenna AT, the receiver 17, the microphone 18 and the keyboard 19 being attached to the housing panel 10, the antenna panel 10 is located near the antenna AT. The light amount detection sensor 23 described above is provided. Further body panel 10
In the conductor area 10A of the touch sensor 25 as described above.
Are connected, and the conductor region 10B is connected to the ground. Then, as shown in FIG. 4A, when there is an incoming call when the portable terminal device 1 is stored in the bag 2, the buzzer 21 sounds an incoming call at a predetermined volume. Is heard outside the bag 2 as a low volume, so it does not disturb the surroundings.

Here, the owner of the portable terminal device 1 notices an incoming call and opens the bag 2 as shown in FIG. 4 (b) or the portable terminal device 1 as shown in FIG. 4 (c). Then, the light amount detection sensor 23 of the mobile terminal device 1 detects the light amount value (analog value) at that time and detects A
It is sent to the / D converter 24. The A / D converter 24 converts the light amount value into a digital signal and sends it to the control unit 26. In this case, the control unit 26 determines that the light amount value is higher than the previous light amount value, and controls the volume variable circuit 22 to reduce the volume according to the increase of the light amount value. As a result,
The volume value output from the volume varying circuit 22 to the buzzer 21 is reduced, and the incoming volume of the buzzer 21 is reduced.

Therefore, even if the holder opens the bag 2 to answer the incoming call while the mobile terminal device 1 is receiving an incoming call, the control unit 26 gives the buzzer 21 an incoming sound volume by detecting an increase in the amount of light to the terminal device 1. Therefore, the ringing volume becomes very low, and as a result, it is possible to eliminate annoyance to the surroundings and mental distress to the owner when receiving a call in a car such as a train. Further, at this time, when the holder of the portable terminal device 1 touches the device 1 with his / her hand, the output of the touch sensor 25 becomes the “H” level, so that the control unit 2
6 controls to further reduce the output value of the volume variable circuit 22. Even when the owner puts his / her hand in the pocket and touches it in order to respond to the incoming call of a portable terminal such as a pager stored in the pocket, the control unit 2
6 detects this through the touch sensor 25 and reduces the sound volume, and therefore has the same effect.

Next, the operation of the main part of the present invention will be described in more detail with reference to the flow chart of the controller 26 shown in FIG. When incoming data is detected in step S1 by receiving incoming data from the base station via the modem demodulator 12, the control unit 26 causes the volume variable circuit 22 in step S2.
Then, the buzzer 21 is caused to ring, and the process proceeds to step S3 to determine whether or not there is a change in the light amount detected by the light amount detection sensor 23 via the A / D converter 24.

When the amount of light received by the portable terminal device 1 changes and the determination in step S3 becomes "Y", it is determined in step S4 whether or not the amount of light has increased. here,
When the "increase in light amount" in step S4 is determined to be "Y",
The control unit 26 determines that the holder of the mobile terminal device 1 notices the incoming call and opens the bag 2 to respond to the incoming call, and in step S5, reduces the incoming call volume according to the change in the light amount to the volume changing circuit 22. Take control. Therefore, the sound volume changing circuit 22 sounds the buzzer 21 in step S6 based on the sound volume controlled by the control unit 26.
The ringtone of is extremely low and does not disturb others.

When the holder touches the portable terminal device 1 in the opened bag 2 with his / her hand, this is detected by the touch sensor 25 and transmitted to the control unit 26, so that the control unit 26 causes the buzzer 21 to operate. The ringtone volume of is controlled to be further reduced. Then, when the call key of the mobile terminal device 1 taken out from the bag 2 is operated and the determination in step S7 becomes “Y”, the control unit 26 controls the volume changing circuit 22 to be turned off in step S8, and the buzzer 21 rings. By stopping the sound and returning the response signal to the base station side, the call by the holder is started in step S9. If there is a change in the amount of light and the amount of light decreases at that time from the time of the first incoming call, in step S10 the volume variable circuit 22 is controlled to increase the incoming call volume according to the change in the amount of light. Further, when a change in the amount of light is detected and the incoming call volume is reduced, when the call key is not operated, the incoming call volume is controlled to return to the original volume after a certain period of time.

Next, when the change in the light amount cannot be detected and the determination in step S3 is "N", the control unit 26 determines in step S11 whether or not there is a touch on the apparatus 1 via the touch sensor 25. Here, the output of the touch sensor 25 changes from “L” to “H” when the owner touches the present device 1 which is stored in a pocket or the like, and the “touch detection” in step S11 becomes “Y”. , The control unit 26
Performs ringing volume reduction control for the volume varying circuit 22 in step S12. As a result, the volume varying circuit 22 sounds the buzzer 21 in step S6 based on the volume reduced by the control unit 26. When the light quantity does not change during the incoming call and the output of the touch sensor 25 does not change from the "L" level to the "H" level, the ringing sound of the buzzer 21 is continued at the volume at the start of the incoming call. When the call key is operated and the determination in step S13 becomes "Y", the volume variable circuit 22 is turned off in step S8 to stop the ringing sound of the buzzer 21 and the response signal is returned to the base station side. Thus, the call by the owner is started in step S9.

In this embodiment, when the light quantity detected by the light quantity detecting sensor 23 increases, the ringing volume is controlled to be reduced based on the light quantity value. In this case, specifically, in the control unit 26, In the memory (not shown), several levels of light amount reference values and respective ringing tone volume values corresponding thereto are set in advance, and the control unit 26 compares the detection value of the light amount detection sensor 23 with each reference value in the memory. Then, the incoming call is controlled to ring at the volume value corresponding to the closest reference value. Further, if the operator (the owner of the mobile terminal device 1) arbitrarily sets the reference value and the like in the memory, it is possible to ring the incoming call at a volume according to the individual usage environment of the owner.

[0021]

As described above, according to the present invention, the light amount detection sensor for detecting a change in the light amount with respect to the portable terminal device and the volume of the incoming call when the increase in the light amount is detected by the light amount detection sensor at the time of incoming call are reduced. A control means is provided to reduce the incoming call volume when an increase in the amount of light to the mobile terminal device is detected during an incoming call, so that the owner of the mobile terminal receives an incoming call in the car such as a train and responds to this incoming call. In order to do so, when the mobile terminal being called is taken out of the bag, etc., the amount of light increases and the ringing noise is reduced.Therefore, eliminate the annoyance to the surroundings and the emotional distress to the owner. You can Further, since a touch sensor for detecting the presence / absence of contact of the human body with the mobile terminal device is provided and the volume of the ring tone is reduced according to the detection output of the touch sensor, the mobile terminal device can be used to respond to an incoming call. You can further reduce the ring tone by touching it with your hand.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a mobile terminal device of the present invention.

FIG. 2 is a circuit diagram showing a configuration of a touch sensor used in the above device.

FIG. 3 is a diagram showing an external view of the device.

FIG. 4 is a diagram showing a situation when the above device receives an incoming call.

FIG. 5 is a flowchart showing the operation of the main part of the above apparatus.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Portable terminal device, 2 ... Bag, 11 ... Wireless transmission / reception part,
12 ... Modem demodulator, 16 ... Modem modulator, 19 ... Keyboard, 21 ... Buzzer, 22 ... Volume changing circuit, 23 ... Light intensity detection sensor, 24 ... A / D converter, 25 ... Touch sensor, 26 ... Control section.

Claims (2)

[Claims] 1. A mobile terminal device for detecting an incoming call by an incoming wireless signal and outputting a ring tone from a buzzer or the like to notify the incoming call, wherein a light quantity detection sensor for detecting a change in the light quantity with respect to the mobile terminal device, and the light quantity. A mobile terminal device, comprising: a control unit that reduces the volume of the ring tone when an increase in the amount of light is detected by the detection sensor. 2. The touch sensor according to claim 1, further comprising a touch sensor that detects whether or not a human body touches the mobile terminal device, and the control unit reduces the volume of the ring tone according to the detection output of the touch sensor. A mobile terminal device.