JP2002300233A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable telephone set capable of confirming the existence/absence of past incoming calls without performing a special operation and also capable of reducing power consumption. SOLUTION: This portable telephone set is provided with a light emitting element controlling part 10 for controlling the light emission of a light emitting element 2, a light emitting element controlling part 11 for controlling the light emission of a light emitting element 3, a light quantity change detecting part 6 for detecting change of ambient light quantity based on a light detection signal from a photosensor element 4 and outputting a display instruction signal s1 in the case light quantity rapidly increases, a storing part 8 for storing detailed information about incoming calls and outputting an incoming call existence signal s4 showing the existence/absence of the incoming calls, and a deciding part 9 for turning on the light emitting elements 2 and 3 or making the light emitting elements 2 and 3 flicker by outputting light emission instruction signals s5 and s6 based on the display instruction signal s1 and the incoming call existence signal s4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone having a function of notifying the presence or absence of an incoming call in the past.

[0002]

2. Description of the Related Art Many portable telephones have an incoming call notification function capable of displaying an incoming call history indicating the presence or absence of an incoming call in the past on a display device such as a liquid crystal panel. When such a mobile phone is used, the user can confirm whether or not there is an incoming call within a period during which the incoming call cannot be answered, such as when moving. And
A mobile phone having such an incoming call notification function displays an incoming call history in accordance with an operation instruction from a user, or displays an incoming call history with the display device constantly activated.

[0003] In a mobile phone that displays an incoming call history in accordance with an operation instruction from the user, the user performs a predetermined key operation or the like on a dial unit or the like to confirm the presence or absence of an incoming call, and the mobile phone responds to the key input. The incoming call history was displayed on the display device. When an incoming call is received, a message such as "Missed incoming call" is generally displayed on the display device.

[0004] In a portable telephone which displays an incoming call history while the display device is constantly activated, the portable telephone automatically displays a message such as "Missed call" when the incoming call is not answered. Was generally displayed.

[0005]

However, the above-mentioned portable telephone has the following problems.
That is, in a mobile phone that displays the incoming call history in response to an instruction from the user, the user needs to perform a special operation (complex key input) in order to confirm whether or not there is an incoming call. In other words, the user needs to learn such a special operation in order to check whether there is an incoming call. Therefore, when confirming whether or not there is an incoming call in such a mobile phone, the user may feel inconvenience.

[0006] In addition, in a portable telephone that displays the incoming call history while the display device is constantly activated, the incoming call history is automatically displayed on the display device, so that the user can easily confirm whether or not there is an incoming call. However, since power is constantly supplied to the display device, the power consumption of the mobile phone increases. Therefore, in such a mobile phone, there is a problem that the operating time (standby time, talk time) is shortened.

An object of the present invention is to provide a portable telephone capable of confirming the presence or absence of an incoming call in the past without special operation and reducing power consumption.

[0008]

A portable telephone according to the present invention detects an incoming call and accumulates information on the incoming call, a light amount change detecting unit for detecting a change in ambient light amount, and determines whether there is an incoming call. A notifying unit for notifying, and a determining unit for notifying the notifying unit of the presence or absence of the incoming call based on the information of the incoming call detecting unit and the detection result of the light amount change detecting unit are provided.

When the light quantity change detecting section detects that the surrounding light quantity has increased, the judging section makes the notifying section notify the presence or absence of an incoming call. That is, the determination unit recognizes that the user has picked up the mobile phone by detecting that the amount of light in the surroundings has increased, and notifies the notification unit of the presence or absence of an incoming call.
The presence or absence of an incoming call is indicated by light emission from an LED, display on a liquid crystal panel
The user is notified by a ring tone or the like.

[0010] The notification unit is installed on the outer surface of the mobile phone. For example, a foldable mobile phone is installed at a position where a user can see it from the outside in a folded state.
By installing the notification unit in such a place, the user can confirm the presence / absence of an incoming call in the past from outside the mobile phone.

The notifying section comprises a first light emitting section and a second light emitting section. The determining section causes the first light emitting section to emit light when there is an incoming call, and the second light emitting section when there is no incoming call. The part emits light.
It is desirable that the light emission color of the first light emitting unit and the light emission color of the second light emitting unit are different. For example, the emission color of the first light emitting unit is:
It is desirable that the light emission color is a warm color light emission color such as red, and the light emission color of the second light emitting unit is a cool color light emission color such as blue light. As described above, by distinguishing the emission colors of the first light emitting unit and the second light emitting unit, the user can easily confirm whether there is an incoming call in the past.

The notifying section is a light emitting element having a plurality of luminescent colors, and the determining section causes the notifying section to emit a luminescent color according to the presence or absence of an incoming call. Such a light emitting element is, for example, a two-color L
ED. For example, when a two-color LED that emits red and green light is used, the determination unit emits red when there is an incoming call, and emits green when there is no incoming call. As described above, the user can easily confirm the presence / absence of a past incoming call by categorizing the emission colors according to the presence / absence of the incoming call.

[0013] The determination unit, when inputting information to be notified when an operation for confirming the presence or absence of the incoming call is performed by the user, causes the notifying unit to notify the presence or absence of the incoming call. For example, when a special key of the mobile phone is pressed, the notification unit is notified of whether there is an incoming call. In this way, even in a place where the amount of light in the surroundings does not change, such as a dark place, the user can check the presence / absence of an incoming call in the past by operating a special key.

The portable telephone has a control section for controlling a main function thereof, and a display section for displaying information on an incoming call. When the light quantity change detecting section detects an increase in the light quantity, the control section controls the incoming call detecting section. The detailed information on the incoming call is displayed on the display unit for a certain period. The certain period is a period of about 10 seconds. In this way, the control unit displays the information regarding the incoming call on the display unit for a certain period, so that the user does not need to perform a special operation such as a key operation to check the detailed information of the incoming call.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a mobile phone according to the present invention will be described below with reference to the drawings. FIG.
FIG. 3 is an explanatory diagram illustrating an example of an appearance of a mobile phone according to the present invention.

A portable telephone 1 shown in FIG.
It has the function of a mobile communication terminal such as an S or a mobile phone, and has a light emitting element 2, a light emitting element 3, and a photo sensor element 4. Light emitting element 2, light emitting element 3, and photo sensor element 4 are installed on the outer surface of mobile phone 1. In particular, the mobile phone 1 having a folding housing structure as shown in FIG. 1 is installed in a position where it can be seen by a user in a folded state. The photo sensor element 4 is installed, for example, near the light emitting elements 2 and 3.
The photo sensor element 4 is used to detect the amount of light around the mobile phone 1, and is, for example, a photodiode.

The light emitting element 2 is used for notifying that there has been an incoming call in the past.
Light or blink to notify the user that there is an incoming call. The light emitting element 3 is used for notifying that there has been no incoming call in the past. Light emitting element 2,
Reference numeral 3 denotes a light-emitting element with low power consumption, for example, a light-emitting diode (LED). For example, the light emitting element 2
The LED that emits warm colors such as red and orange, and the light emitting element 3 is an LED that emits cool colors such as blue and green. The warm emission color has an effect of intuitively informing the user that some operation is being performed, and the cool emission color has an intuitive effect of not requiring the user to perform any operation. Because it has the effect of telling

FIG. 2 is a block diagram showing an internal configuration of the mobile phone 1. As shown in FIG. The mobile phone 1 includes a light amount change detection unit 6, a storage unit 8, a determination unit 9, a light emitting element control unit 10, a light emitting element control unit 11, a control unit 20, a voice input / output unit 21, and a microphone (hereinafter referred to as a microphone) 22. , Speaker 2
3, a key operation detection unit 25, a keypad 24, a display control unit 26, a display unit 27, and a wireless control unit 28.

The radio control unit 28 outputs a signal received via an antenna (not shown) to the control unit 20, and transmits a signal output from the control unit 20 to the outside via the antenna. I do. The control unit 20 reads information from the storage unit 8 and writes information to the storage unit 8. Storage unit 8
Is composed of a storage medium such as an SRAM. Control unit 20
Performs overall control of the mobile phone 1 and includes, for example, a central processing unit (CPU).

The microphone 22 converts the input transmission voice into an electrical signal and outputs the electrical signal to the voice input / output unit 21 as a transmission signal. The speaker 23 emits a received voice based on the received voice signal input from the voice input / output unit 21. The voice input / output unit 21 performs processing such as A / D conversion on the transmission signal from the microphone 22 and outputs the processed signal to the control unit 20, and performs D / A conversion on the signal input from the control unit 20. And outputs the result to the speaker 23.

The key operation detecting section 25 outputs a key detection signal corresponding to the pressed key to the control section 20 when a key is pressed on the keypad 24.
The display control unit 26 causes the display unit 27 to display display information according to the display command signal from the control unit 20. Display 27
Is realized by a display device such as a liquid crystal panel.

The judgment section 9 receives information from the light quantity change detection section 6 and the storage section 8 and outputs information to the light emitting element control section 10 and the light emitting element control section 11.

FIG. 3 is a block diagram showing a portion related to the notification of the presence or absence of an incoming call in the mobile phone 1. The light amount change detection unit 6, the determination unit 9, the light emitting element control unit 10, the light emitting element control unit 11, and the control unit 20 are realized by, for example, an electric circuit.

The photo sensor element 4 detects the amount of light around the mobile phone 1 and outputs a light amount detection signal to the light amount change detection unit 6. The light amount change detection unit 6 detects a time change of the signal level of the light amount detection signal from the photo sensor element 4. That is, by monitoring the signal level of the light amount detection signal from time to time, a change in the light amount around the mobile phone 1 is detected. The light amount change detecting unit 6 outputs a display instruction signal s1 to the determining unit 9 when detecting a sharp increase in the surrounding light amount. The display instruction signal s1 is output for a certain period (for about 10 seconds).

When receiving an incoming call, the control unit 20 outputs an incoming signal s2 indicating that there is an incoming call to the storage unit 8. When the incoming signal s2 is input once or more, the storage unit 8 outputs the incoming signal s4 to the determination unit 9. When an operation for confirming the presence or absence of an incoming call is performed on the keypad 24 or the like, the control unit 20 outputs a confirmation signal s3 to the storage unit 8. The storage unit 8
When the confirmation signal s3 is input once or more, the output of the incoming signal s4 is stopped. Note that the incoming signal s2 includes incoming detailed information such as a caller number, a caller name, and an incoming time.

The judging section 9 outputs a signal to the light emitting element control section 10 and the light emitting element control section 11 in accordance with the input signals from the light quantity change detecting section 6 and the storage section 8. That is, the determination unit 9 outputs the light emission instruction signals s5 and s6 according to the input results of the display instruction signal s1 and the incoming signal s4. When the light-emitting element control unit 10 receives the light-emitting instruction signal s5, it turns on or blinks the light-emitting element 2 for a certain period (for about 10 seconds). Further, the light emitting element control unit 10 may turn on or off the light emitting element 2 in synchronization with the light emission instruction signal s5. Similarly, when the light-emitting element control unit 11 receives the light-emitting instruction signal s6, the light-emitting element 3 is turned on or off for a certain period.

FIG. 4 is a circuit diagram showing an example of the circuit configuration of the determination unit 9. The judging unit 9 includes an AND operation element (hereinafter, A
It is called ND gate. ) 12, 13 and a NOT operation element (hereinafter referred to as a NOT gate) 14. AND
In the gate 12, one end on the input side is connected to the output side of the light amount change detection unit 6, the other end on the input side is connected to the storage unit 8, and the output side is connected to the input side of the light emitting element control unit 10. Have been. In the AND gate 13, one end on the input side is connected to the output side of the light amount change detection unit 6, and the other end on the input side is connected to the storage unit 8 via the NOT gate 14,
The output side is connected to the input side of the light emitting element control unit 11.

The judging section 9 operates according to a truth table as shown in FIG. That is, the following operations (1) to (4) are performed. In the truth table, “L” indicates a low level (no signal), and “H” indicates a high level (signal present). (1) When the display instruction signal s1 and the incoming signal s4 are not input, the light emission instruction signals s5 and s6 are not output. (2) There is no input of the display instruction signal s1, and
If there is an incoming signal s4, the light emission instruction signal s
5 and s6 are not output. (3) When the display instruction signal s1 is input and the incoming signal s4 is not input, the light emission instruction signal s5 is not output and the light emission instruction signal s6 is output. (4) When the display instruction signal s1 is input and the incoming call presence signal s4 is input, the light emission instruction signal s5 is output and the light emission instruction signal s6 is not output.

Here, the photo sensor element 4 and the light quantity change detecting section 6 correspond to a light quantity change detecting section,
Reference numeral 3 corresponds to a notification unit. The incoming call detection unit is realized by the control unit 20 and the storage unit 8. In particular, the light emitting element 2 has the first
And the light-emitting element 3 corresponds to a second light-emitting unit.

Next, the operation of the mobile phone 1 shown in FIG. 1 will be described with reference to FIG. FIG. 6 is a flowchart for explaining the operation of the mobile phone 1.

The light amount change detecting section 6 includes a photo sensor element 4
, A light amount detection signal is input (step S41), and based on the light amount detection signal, it is determined whether or not the light amount in the surrounding environment has rapidly increased (step S42). And
When a sharp increase in the amount of light is detected, the display instruction signal s
1 is output to the determination unit 9, otherwise the display instruction signal s1 is not output.

The determination section 9 controls the output of the light emission instruction signals s5 and s6 according to the truth table shown in FIG. That is,
When the display instruction signal s1 is not input, the light emission instruction signals s5 and s6 are not output. When the display instruction signal s1 is input and the incoming call presence signal s4 is input, the light emission instruction signal s5 is output to the light emitting element control unit 10 (steps S43 and S44). Light emitting element control unit 1
0 turns on or flashes the light emitting element 2 when the light emission instruction signal s5 is input. There is an input of the display instruction signal s1,
If there is no incoming signal s4, the light emission instruction signal s6 is output to the light emitting element control unit 11 (steps S43 and S45). When the light-emitting element control unit 11 receives the light-emitting instruction signal s6, the light-emitting element 3 turns on or blinks. The mobile phone 1 repeatedly performs the operation shown in FIG.

Now, consider a case where the portable telephone 1 is left in a place where there is little or no change in the amount of light. For example,
Consider a case where the mobile phone 1 is stored in a user's bag or the like. In this case, since the light amount change detecting unit 6 does not detect a sudden increase in the light amount, it does not output the display instruction signal s1 (steps S41 and S42). Therefore, since the determination unit 9 does not output the light emission instruction signals s5 and s6, the light emitting elements 2 and 3 do not light or blink.

Next, consider a case where the amount of light in the surrounding environment of the mobile phone 1 is rapidly increased. For example, consider a case where the mobile phone 1 stored in a dark place such as a user's bag is taken out in a place with a bright surrounding environment.

In this case, since the light amount change detecting section 6 detects a sharp increase in the light amount, the display instruction signal s1 is determined by the judging section 9
Is output (steps S41, S42). The determination unit 9 confirms whether or not there is an incoming call based on whether or not the incoming call presence signal s4 has been input, and if there is an incoming call, outputs a light emission instruction signal s5 to the light emitting element control unit 10 (step S
43, S44), the light emitting element 2 is turned on or blinked, and when there is no incoming call, the light emitting instruction signal s6 is output to the light emitting element control unit 11 (steps S43, S4).
5) Turn on or blink the light emitting element 3. Thereby, the user can easily confirm the presence or absence of the incoming call in the past by confirming the light emission of the light emitting elements 2 and 3 installed on the outer surface of the mobile phone 1.

When the user recognizes that there is an incoming call in the past by the light emission of the light emitting element 2, the user performs a confirmation operation by pressing a specific key or the like on the keypad 24 or the like. Then, the control unit 20 outputs the confirmation signal s3 to the storage unit 8, and the storage unit 8 does not output the incoming signal s4. Therefore, if the mobile phone 1 stored in a dark place is taken out in a bright place at the next opportunity, and there is no incoming call by that time, the incoming call presence signal s4 is not output.
Causes the light emitting element 3 to emit light. When there is an incoming call by that time, the storage unit 8 outputs the incoming signal s4 according to the notification of the incoming signal s2 from the control unit 20, so that the determining unit 9 causes the light emitting element 2 to emit light.

As described above, according to the present embodiment, when the amount of light in the surroundings increases, it is determined that the user has picked up portable telephone 1, and portable telephone 1 is installed on the outer surface. The user can check the light emission of the light emitting elements 2 and 3 from the outside by turning on or blinking the light emitting elements 2 and 3, so that the user can check the presence or absence of the incoming call in the past. Operation (such as key operation) becomes unnecessary. In particular, with the foldable mobile phone 1 as shown in FIG. 1, the user can check the presence or absence of a past incoming call from outside in the folded state.

Further, the user can confirm whether or not there is an incoming call by checking whether the light emitting elements 2 and 3 are lit or blinking. Therefore, as in a conventional mobile phone, the incoming call is made with the display unit activated. There is no need to check for the presence of That is, the mobile phone 1 does not necessarily need to activate the display unit to notify the presence or absence of the incoming call in the past. Therefore, the power consumption of the mobile phone 1 can be reduced, and the operating time of the mobile phone 1 can be extended.

Next, a second embodiment of the portable telephone according to the present invention will be described. FIG. 7 shows a second embodiment according to the present invention.
FIG. 3 is a block diagram showing a configuration of the embodiment. The mobile phone 1a shown in FIG. 7 uses a judging unit 9a instead of the judging unit 9, and the judging unit 9a receives a control signal s7 from the control unit 20, as shown in FIGS. Different from the mobile phone 1.

FIG. 8 is a circuit diagram showing an example of the circuit configuration of the determination section 9a. The determining unit 9a has a configuration in which an OR operation element (OR gate) 15 is added to the determining unit 9 shown in FIG. The OR gate 15 takes the logical sum of the display instruction signal s1 from the light amount change detection unit 6 and the control signal s7 from the control unit 20, and supplies the output signal to one end on the input side of the AND gate 12 and the AND gate 13. I do. Also, A
The connection form of the other end on the input side of the ND gate 12 and the AND gate 13 is the same as that of the determination unit 9 shown in FIG. That is, the determination unit 9a is configured to perform the same operation when the display instruction signal s1 is input and when the control signal s7 is input.

The control section 20 outputs a control signal s7 when a special operation for confirming the presence or absence of an incoming call is performed by the user. For example, the control signal s7 is output when a side button installed on the side surface of the mobile phone 1a or a specific button on the keypad 24 is pressed to confirm whether there is an incoming call.

Now, consider a case where the user takes out the mobile phone 1a from a bag or the like in a dark place. In this case, the light amount change detecting unit 6 does not output the display instruction signal s1 because it does not detect a sudden increase in the light amount.
When a special operation for confirming the presence or absence of the incoming call is performed, the control unit 20 outputs the control signal s7. Therefore, the determination unit 9a outputs the light emission instruction signals s5 and s6 according to the presence or absence of the incoming call. By doing so, the light emitting elements 2 and 3 can be turned on or off. Therefore, even in such a case, the user can confirm the presence or absence of the incoming call in the past by pressing the side button or the like to light or blink the light emitting elements 2 and 3.

As described above, by arranging the judging section 9a as shown in FIG. 8, the user can press the specific button or the like by pressing a specific button or the like even in a dark condition.
3 can be turned on or off, and it is possible to easily confirm the presence / absence of an incoming call in the past.

Next, a third embodiment of the portable telephone according to the present invention will be described. FIG. 9 is a block diagram showing the configuration of the third embodiment of the mobile phone according to the present invention. The mobile phone 1b shown in FIG. 9 is configured such that the control unit 20 performs display control of the display unit 27 via the display control unit 26 based on the display instruction signal s1 from the light amount change detection unit 6. This is different from the mobile phone 1 shown in FIG.

When detecting that the amount of light in the surroundings has suddenly increased, the light amount change detecting section 6 outputs a display instruction signal s1. When inputting the display instruction signal s1, the control unit 20 reads out the incoming call detailed information already stored in the storage unit 8,
The detailed information is displayed on the display unit 27 through the display control unit 26. The display of the detailed information is performed for a period of, for example, about 10 seconds.

As described above, the mobile phone 1b is configured as shown in FIG. 9 so that the user can check the presence / absence of an incoming call in the past by emitting light from the light emitting elements 2 and 3 and then perform a special operation such as key operation. Detailed information on incoming calls can be confirmed without any operation. That is, while the light emitting elements 2 and 3 are on or blinking, the detailed information on the incoming call is already displayed on the display unit 27, so the user can check the detailed information only by looking at the display unit 27. be able to.

Although not shown, the light amount change detecting section 6 outputs a display instruction signal s1 to the power supply section of the display section 27. When the display instruction signal s1 is input, the power supply section May be supplied to drive the display unit 27 for a certain period of time. At this time, when the control unit 20 outputs the information for displaying the detailed information on the incoming call to the display unit 27 via the display control unit 26 when the incoming call is detected, the display unit 27 operates during the driving time. Since the detailed information is displayed, the user can check the detailed information regarding the incoming call without performing any special operation after checking the presence or absence of the incoming call in the past.

In the above-described three embodiments, the case where the light-emitting colors of the light-emitting elements 2 and 3 are fixed in advance is exemplified. However, the light-emitting colors of the light-emitting elements 2 and 3 can be changed according to the user's preference. You may do so. For example, as shown in FIG. 10, a red LED 51 and a green LE
D51 and blue LEDs 53, LEDs 51 to 53
Is connected to the light emitting element control unit 10 via the switches 54 to 55, and the switches 54 to 55 are turned on and off, whereby the light emitting element 2 can be turned on or off in a color that is easy for the user to understand. The same applies to the light emitting element 3.

The switches 54 to 56 are connected to the control unit 2
This is an electronic switch that can be turned on and off under control from zero. In this way, the user can specify the emission colors of the light emitting elements 2 and 3 as desired, such as yellow and purple, on a menu for performing various operation settings and the like. For example, when yellow is designated as the emission color of the light emitting element 2, the control unit 20 can cause the light emitting element 2 to emit yellow light by turning on the switches 55 and 56.

In the above embodiment, the case where the light emitting elements 2 and 3 are monochromatic LEDs has been described as an example.
The presence / absence of an incoming call may be notified using a multi-color light emitting LED capable of emitting more colors. At this time, the light emitting element control unit 10 and the light emitting element control unit 11 shown in FIG. 3 are integrated into a light emitting element control unit 10a, and the multicolor light emitting diode and the light emitting element control unit 10a are connected. Light emission instruction signal s8 and color designation signal s for designating a light emission color
9 is output to the light emitting element control unit 10a.
0a is a color designation signal s9 triggered by the light emission instruction signal s8.
It is preferable that power is supplied to the terminal of the color specified by.

In this case, the determination unit 9 determines whether the display instruction signal s1
Is output, a light emission instruction signal s8 is output,
Furthermore, when the incoming signal s4 is input, the color specifying signal s9 is output, and when the incoming signal s4 is not input, the color specifying signal s9 is not output. For example, when a two-color LED that emits red and green light is used, the light emitting element control unit 10a inputs the light emission instruction signal s8, and when the color designation signal s9 is input, the corresponding terminal is connected to the corresponding terminal. When the power is supplied, the light emitting element 2 emits red light, and when the color designation signal s9 is not input, the power is supplied to the corresponding terminal, so that the light emitting element 2 can emit green light.

As described above, by using the multicolor LED instead of the light emitting elements 2 and 3 and causing the mobile phone to emit a light emission color according to the presence or absence of the incoming call, the user can confirm the presence or absence of the incoming call in the past. Can be.

Further, in the above embodiment, the judgment unit 9
Although the example (including 9a) is configured by an electric circuit (logic circuit), the determination unit 9 may be realized by an arithmetic device such as a CPU. In this case, the determination unit 9 may be incorporated as a part of the function of the control unit 20.

In the above embodiment, the case where an LED is used as a means for notifying the presence or absence of an incoming call has been described.
May be used. For example, in a mobile phone having an exposed display unit 27 (such as a mobile phone that cannot be folded), the control unit 20 (determination unit 9) displays a message according to the presence or absence of an incoming call when the amount of light in the surroundings increases rapidly. The backlight of the unit 27 may be turned on or blinking, or the emission color of the backlight of the display unit 27 may be changed to notify the user of the presence or absence of the incoming call in the past.

Furthermore, in the above-described embodiment, an example has been described in which a past incoming call is notified using display means such as an LED or a liquid crystal panel. However, the presence or absence of an incoming call may be notified using a ring tone (ring melody). Good. In this case, the control unit 20 (judgment unit 9) outputs a ringtone according to the presence or absence of an incoming call from the speaker 23 via the voice input / output unit 21 when the amount of light in the surroundings sharply increases. Notification of the presence / absence of an incoming call can be made by sound. Also in this case, the ringtone may be selectable according to the user's preference.

[0056]

According to the present invention, the portable telephone notifies the user of the presence / absence of an incoming call in accordance with the change in the amount of light in the surroundings. Can be confirmed. Further, since it is not necessary to activate the display unit in order to confirm whether or not there is an incoming call, it is possible to reduce the power consumption of the mobile phone.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of the appearance of a mobile phone according to the present invention.

FIG. 2 is a block diagram showing an internal configuration of the mobile phone 1.

FIG. 3 is a block diagram showing a part of the mobile phone 1 relating to a notification of presence / absence of an incoming call.

FIG. 4 is a circuit diagram illustrating an example of a circuit configuration of a determination unit 9;

FIG. 5 is a truth table showing a relationship between an input and an output of a determination unit 9;

FIG. 6 is a flowchart for explaining the operation of the mobile phone 1;

FIG. 7 is a block diagram showing a configuration of a second exemplary embodiment according to the present invention.

FIG. 8 is a circuit diagram illustrating an example of a circuit configuration of a determination unit 9a.

FIG. 9 is a block diagram showing a configuration of a mobile phone according to a third embodiment of the present invention.

FIG. 10 is an explanatory diagram illustrating a configuration example of a light emitting element control unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mobile phone 2 light emitting element 3 light emitting element 4 photo sensor element 6 light quantity change detecting section 8 storage section 9 determining section 10 light emitting element control section 11 light emitting element control section 20 control section

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04B 7/26 109L F-term (Reference) 5K023 AA07 BB11 HH04 HH07 HH08 5K027 AA11 BB02 CC08 FF03 FF22 MM15 5K067 AA34 BB04 FF13 FF24 FF32 GG11

Claims (7)

[Claims] 1. A mobile phone capable of notifying the presence or absence of an incoming call, comprising: an incoming call detection unit that detects an incoming call and stores information about the incoming call; a light amount change detection unit that detects a change in ambient light amount; A mobile phone, comprising: a notification unit that notifies the presence / absence of the incoming call; and a determination unit that notifies the notification unit of the presence / absence of the incoming call based on information of the incoming call detection unit and a detection result of the light amount change detection unit. Phone. 2. The mobile phone according to claim 1, wherein the determination unit notifies the notification unit of the presence / absence of an incoming call when the light amount change detection unit detects that the surrounding light amount has increased. 3. The mobile phone according to claim 1, wherein the notification unit is provided on an outer surface of the mobile phone. 4. The notifying unit includes a first light emitting unit and a second light emitting unit. The determining unit causes the first light emitting unit to emit light when there is an incoming call and the second light emitting unit when there is no incoming call. The mobile phone according to claim 1, wherein the light emitting unit emits light. 5. The mobile phone according to claim 1, wherein the notifying unit is a light emitting element having a plurality of luminescent colors, and the determining unit causes the notifying unit to emit a luminescent color according to the presence or absence of the incoming call. 6. The method according to claim 1, wherein the determination unit notifies the notification unit of the presence or absence of the incoming call when inputting information to be notified when the user performs an operation for confirming the presence or absence of the incoming call. The mobile phone according to claim 5. 7. A control unit having a main function of a mobile phone, and a display unit for displaying information on an incoming call, wherein the control unit receives an incoming call when the light amount change detecting unit detects an increase in the amount of incoming light. 7. The display unit according to claim 1, wherein detailed information on the incoming call of the detection unit is displayed on the display unit for a certain period.
The described mobile phone.