JP2001069207A - Mobile radio terminal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a mobile radio terminal that improves operability by appropriately performing charging recommendation notification in accordance with the consumption of a battery. SOLUTION: A decision value at which notification urging charging is performed is inputted by the operation of a key inputting part 11, a controlling part 9 operates and calculates a set value at which charging is urged on the basis of the decision value and sets the set value to a level deciding part 17, and when, in the part 17, the terminal voltage of a battery 14 detected by a battery voltage detection circuit 16 falls to the set value that is set, the part 9 displays the effects on a displaying part 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile radio terminal having a built-in rechargeable battery such as a portable telephone and operating by being supplied with power from the battery. The present invention relates to a mobile wireless terminal that has improved operability.

[0002]

2. Description of the Related Art Conventionally, in a mobile radio terminal such as a portable telephone which has a built-in rechargeable battery and operates by being supplied with power from the battery, the remaining amount of the battery is visually determined in order to prevent the battery from running out. It is configured to display.

In recent years, lithium-ion batteries having relatively high internal resistance have become the mainstay of this type of mobile phone batteries. , The current consumption is significantly different, and this current consumption is, for example, 350 mA on average during a call and 3 mA on standby. For this reason, the power consumption is higher during a call than during standby, and the terminal voltage of the battery 14 is lower during a call than during standby.

FIG. 9 is a graph showing the relationship between the normalized discharge time and the normalized battery voltage at the time of talking and standby of the battery of the portable telephone. As shown in FIG. 9, the relationship between the normalized discharge time and the normalized battery voltage in the battery of this type of mobile phone differs between the time of a call and the time of a standby. Is different between a call and a standby. In addition, due to the nature of the battery utilizing a chemical reaction, the output voltage tends to change depending on the charging time, temperature, and the like.

[0005] Therefore, for example, the display of the remaining amount of the battery displayed at the time of a telephone call is one scale, but when the telephone is disconnected, the display becomes two again.
There is a case where the scale returns to the scale, and there is a problem that a user may misunderstand the remaining amount of the battery.

FIG. 10 is a view showing a conventional display screen for displaying the remaining amount of the battery. In FIG. 10A, screen 1
Reference numeral 21 denotes a display screen which is always displayed on the display unit of the mobile phone. In the upper right corner of the display screen 121, three segments 122- are provided for displaying the remaining amount of the battery 14. A battery remaining amount display image 122 simulating a battery having 1, 122-2, and 122-3 is displayed.

FIG. 1 shows the remaining battery level display image 122.
As shown in FIG. 0 (b), in “level 3” where the remaining amount of the battery 14 is sufficient, the segments 122-1, 12-2
2-2 and 122-3 are turned on, and in "level 2" where the remaining battery power is in the middle state, the segments 122-1 and 122-1 are turned on.
Turn on 22-2, "Level 1" that requires battery charging
In, only the segment 122-1 is turned on to visually display the remaining battery level to the user.

FIG. 10C shows a display example of the display unit 12 when the remaining battery power is exhausted. When the remaining amount of the battery is exhausted, the segment of the battery remaining amount display image 122 is changed as shown in FIG.
As shown in (c), the lights are all turned off, a beeping sound is heard, and the display screen 121 is displayed as “Dep. After a while, a beep sounds and the power is turned off.

Incidentally, in the battery remaining amount display by the constant display of the battery remaining amount display image 122, as described above, the power consumption is larger in the call than in the stand-by state, and the terminal voltage of the battery 14 is lower than that in the call. For example, the remaining battery level is displayed as “Level 1” during a call, for example, but becomes “Level 2” again after the call is cut off and the standby state is established, because the time is lower than that during standby. In some cases, the user may return and cannot properly notify the user of the remaining battery level.

Therefore, in order to solve the above-mentioned problem, the display of the remaining amount of the battery is stopped at all times, and the remaining amount of the battery is temporarily displayed when the power is turned on and when the user wants to confirm by himself. A mobile phone adopting the method has also been proposed.

FIG. 11 shows another display example of the remaining amount of the battery 14 when this method is adopted. In this example, the function key “F” of this type of mobile phone is used.
And the numeric keypad “3” and “1” are pressed to select the display of the remaining battery level of the battery 14.

FIG. 11A shows a display screen 121 displayed by this operation. That is, FIG.
In (a), four segments 123-1 and 123-1
-2, 123-3, and 123-4 indicate the remaining battery level of the battery 14, and for example, as shown in FIG. 11A, four segments 123-1, 123-2, and 123-4.
When all of -3 and 123-4 are lit, it indicates "level 4" in which the remaining amount of the battery 14 is sufficient, and the three segments 123-1, 123-2 and 123-3 are lit. And "level 3", two segments 123-1, 123
When -2 is lit, it indicates the middle state of "Level 2",
A state in which only one segment 123-1 is lit indicates "level 1" requiring charging.

In this display method as well, when the remaining amount of the battery 14 is exhausted, the message "NO." Is displayed as described above, an alarm sounds, and the power is turned off. However, according to the above method, when the power is turned on or when the user wants to know the remaining battery level, the remaining battery level can be temporarily recognized. Problem can be solved.

In recent digital mobile phones, continuous standby time is as long as 200 to 400 hours.
As long as you do not talk for many hours, many people only need to charge once a week. Therefore, in some cases, the user does not check the remaining battery level while the mobile phone is in a pocket or bag, and the user does not actively check the remaining battery level. Sometimes.

Further, the display for prompting the user to charge the battery has to be visually checked by the user. When the battery is visually checked, the remaining battery level decreases. In some cases, it disappeared.

[0016]

As described above, in a conventional mobile radio terminal such as a mobile phone, the remaining battery level fluctuates between a telephone call and a standby mode. There is a possibility that the recognition may be erroneous, and the display prompting for charging must be actively checked by the user, and if the user visually checks the remaining battery level, charging may not be in time and the call may not be possible. there were. Accordingly, an object of the present invention is to provide a mobile wireless terminal that improves operability by appropriately performing charging recommendation notification accompanying battery consumption.

[0017]

In order to achieve the above-mentioned object, the invention according to claim 1 has a built-in rechargeable battery,
In a mobile wireless terminal that operates by power supply from the battery, a detecting unit that detects a remaining amount of the battery, a setting unit that sets a set value that prompts charging of the battery, and a setting unit that detects a state of the battery detected by the detecting unit. And a notifying unit for comparing the remaining amount with the set value set by the setting unit and notifying the user to charge the battery based on the comparison result.

According to a second aspect of the present invention, in the first aspect of the present invention, the detecting means detects a remaining amount of the battery based on a terminal voltage of the battery. According to a third aspect of the present invention, in the first aspect of the present invention, the setting unit is configured to input a determination value serving as a guide for performing notification by the notification unit, and determine the determination value input by the input unit. Setting value setting means for setting the setting value based on the value.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the input means inputs a ratio of the remaining battery level for performing the notification to the battery capacity as the determination value. I do.

According to a fifth aspect of the present invention, in the third aspect of the present invention, the input means inputs a usable period of the battery as the determination value.
According to a sixth aspect of the present invention, in the third aspect of the invention, the input means inputs a talkable time and a standby time of the battery as the determination value.

According to a seventh aspect of the present invention, in the third aspect of the invention, the set value setting means calculates the set value based on the actual battery use result, and sets the set value to a value calculated by the calculation means. Means for setting the set value based on the set value.

According to an eighth aspect of the present invention, in the first aspect of the invention, the notifying means reduces the remaining amount of the battery detected by the detecting means to a set value set by the setting means. Display means for displaying a display urging the battery to be charged when the battery is charged.

According to a ninth aspect of the present invention, in accordance with the eighth aspect of the present invention, the notifying means stops charging the battery after a predetermined time has passed since the display prompting the charging of the battery by the detecting means. It further comprises an alarm sound generating means for generating an alarm sound for prompting.

[0024]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a mobile radio terminal according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a block diagram showing an embodiment of a mobile phone constituted by applying the mobile radio terminal according to the present invention.

In FIG. 1, this portable telephone 100
Antenna 1, transmission / reception switching unit 2, transmission unit 3, modulation unit 4, microphone 5, reception unit 6, demodulation unit 7, speaker 8, control unit 9, sounder 10, key input unit 11, display unit 12,
It comprises a memory 13, a battery 14, a power supply unit 15, a battery voltage detection circuit 16, and a level determination unit 17.

When a call is made with the portable telephone 100, a callee's telephone number input from the key input unit 11 or a telephone number (abbreviated dial, redial, etc.) stored in the memory 13 is used when making a call. Then, the control unit 9 transmits a control signal from the antenna 1 via the transmission unit 3 and the transmission / reception switching unit 2 to connect the line.

When the mobile phone 100 receives a call, when the control unit 9 receives an incoming call signal via the antenna 1, the transmission / reception switching unit 2, and the reception unit 6, the control unit 9 sends the sounder 1
When the user hears the ring tone and operates the key input unit 11, the control unit 9 causes the transmission unit 3 to sound.
An incoming call confirmation signal is transmitted from the antenna 1 via the transmission / reception switching unit 2 to connect the line.

After the line is connected, the control unit 9
Are an antenna 1, a transmission / reception switching unit 2, a transmission unit 3, and a reception unit 6.
, And at the same time, the user makes a call via the antenna 1, the transmission / reception switching unit 2, the transmission unit 3, the modulation unit 4, the microphone 5, the reception unit 6, the demodulation unit 7, and the speaker 8. .

Here, the battery 14 is used for the portable telephone 10.
The power of this battery is stabilized by the power supply unit 15 and supplied to each unit. The battery 14 is charged by a charger (not shown), but the battery is consumed in accordance with the usage state of the mobile phone 100, and its output voltage (terminal voltage) is reduced.

The battery voltage detecting circuit 16 detects the terminal voltage of the battery 14. An A / D converter is used as the battery voltage detection circuit 16 and converts the terminal voltage of the battery 14 into a digital value.

The level judging section 17 includes the battery voltage detecting circuit 1
The digital value corresponding to the terminal voltage of the battery 14 detected from 6 is compared with the level determination value (set value) set by the control unit 9, and the digital value corresponding to the terminal voltage of the battery 14 is determined by the control unit 9. When the level decreases to the set level determination value, the control unit 9 is notified of this fact.

The control section 9 responds to this notification by displaying on the display section 12.
Is driven to display a charge display prompting charging of the battery 14. Here, the setting of the level judgment value for the level judgment unit 17 by the control unit 9 is as follows: 1) The fraction of the remaining battery level, which is a guide for charging notification, is input from the key input unit 11 as a fraction or a percentage. It is set by inputting the talk time and the standby time, which are indications of charging information. A specific example of the setting of the level determination value for the level determination unit 17 by the control unit 9 will be described later in detail.

FIG. 2 is a flowchart showing a charge recommendation notification operation in the control unit shown in FIG. First, it is checked whether a registration operation has been performed by the key input unit 11 (step 101). Here, the registration operation by the key input unit 11 refers to an operation of selecting a setting mode that enables the control unit 9 to set a level determination value for the level determination unit 17. For example, a function key “F” and a numeric keypad This is performed by pressing “4” and “5”.

If no registration operation has been performed by the key input unit 11 (NO in step 101), step 1012
Returning, it waits for a registration operation to be performed by the key input unit 11, but if it is determined in step 101 that the registration operation has been performed by the key input unit 11 (YE in step 101).
S), the setting mode is set to enable setting of the level judgment value for the level judgment unit 17 by the control unit 9, and the display unit 1
A menu for setting the level determination value is displayed on the display screen 2 (step 102).

When a desired charge recommendation notification determination value is input from the key input unit 11 by the interactive input using the menu display (step 103), the control unit 9 controls the battery 14 based on the input charge recommendation notification determination value. A level determination value for performing notification to prompt charging of the battery is set in the level determination unit 17.

Next, the control unit 9 determines whether the level determination unit 17 determines that battery voltage ≦ determination level, that is, the digital value corresponding to the terminal voltage of the battery 14 output from the battery voltage detection circuit 16 is used as the control unit. It is checked whether the level has decreased to the level judgment value set in step 9 (step 105).

Here, the digital value corresponding to the terminal voltage of the battery 14 output from the battery voltage detection circuit 16 has not decreased to the level determination value set by the control unit 9 and the battery voltage ≦ If it is determined that the determination level is not established (NO in step 104), the display unit 1
The charge display on the display screen 2 remains off (step 106), and the process returns to step 105.

In step 105, the digital value corresponding to the terminal voltage of the battery 14 output from the battery voltage detection circuit 16 is reduced to the level determination value set by the control unit 9, and the level determination unit 17 ≤ If it is determined that the determination level is satisfied (YE in step 104)
S), the charging indicator on the display screen of the display unit 12 is turned on (step 107), and T (not shown) provided in the control unit 9 is provided.
One timer is started (step 108).

Next, it is checked whether or not the counted time t of the T1 timer started in step 108 has reached T1, that is, whether t = T1 (step 109). If t = T1 has not been reached (NO in step 109) Returning to step 109, if t = T1 in step 109 (step 10)
(YES at 9), a notification sound is generated from the sounder 10 in a predetermined manner (step 110), and then the T1 timer is reset (step 111), and the process returns to step 105.

FIG. 3 is a diagram showing an example of a charging display displayed on the display unit 12 shown in FIG. In FIG. 3, FIG.
An example of the display screen 121-1 of the display unit 12 in a state where the digital value corresponding to the terminal voltage of the battery 14 output from the battery voltage detection circuit 16 has not decreased to the level determination value set by the control unit 9. Is shown. In this state, the display screen 121-1 of the display unit 12 includes
Only the display of the reception level, the date and time, the day of the week, and the time are displayed, but no charge display for urging the battery 14 to be charged is provided.

The terminal voltage of the battery 14 decreases, and the digital value corresponding to the terminal voltage of the battery 14 output from the battery voltage detection circuit 16 by the level determination unit 17 decreases to the level determination value set by the control unit 9. Is determined,
The display screen of the display unit 12 changes from the display screen 121-1 to the display screen 121-2, and on the display screen 121-2,
A charge display 200 consisting of six characters “Charge” prompting charging of the battery 14 is displayed.

After the charge display 200 for prompting the charging of the battery 14 is displayed on the display screen 121-2 of the display unit 12, if the battery 14 is not charged without noticing it, T
After the elapse of the time counted by one timer, an alarm is displayed by the sounder 10 or the like.

According to such a configuration, the display screen 121-1 in the normal state of the display unit 16 only displays the reception level and the date and time, the day of the week, and the time. For example, it is easier to see as compared with the display unit display screen 121 shown in FIG. 10A, and when it is necessary to prompt the charging of the battery 14, "Charge" is displayed as shown in FIG. Charging display 20 consisting of 6 characters
Since 0 is displayed large, it is easy to understand and recognize.

Further, the charging notification performed after a lapse of a predetermined time from the charging display may be performed by a vibrator built in the mobile phone 100 in addition to the generation of the notification sound using the sounder 10 described above.

The display screen may be illuminated by a built-in lamp at the same time as the charging display, so that the display screen can be recognized even in darkness. In this case, when this irradiation is made to blink, the charge display to the user can be performed more effectively.

Next, a specific example of the charge recommendation notification determination value input processing by interactive input based on the menu display described in FIG. 2 will be described. In the menu display described with reference to FIG. 2, as a method of inputting a determination value serving as a guide for charging notification, “remaining capacity setting” for inputting the ratio of the remaining capacity to the total capacity of the battery 14 as a fraction or a percentage and the remaining usable time. A setting mode of “time setting” to be input is prepared.

FIG. 4 shows the setting mode “remaining capacity setting”.
5 is an example of a display screen illustrating a charge recommended notification determination value input process when “fraction input” is selected as a determination value input for performing notification to prompt charging.

First, the display screen of the display unit 12 is shown in FIG.
As shown in (a), a menu screen for selecting any one of the setting modes “remaining capacity setting” and “time setting” is displayed. Here, when “remaining capacity setting” is selected by a user input, “remaining capacity setting” is highlighted and then displayed on display unit 1.
As shown in FIG. 4B, the display screen 2 changes to a display screen in which options of “minute input”, “percent input”, and “call / standby time input” are displayed.

When the user selects "fraction input", the display unit 12 displays the battery 14 as shown in FIG.
A display screen is displayed for selecting a determination value for prompting charging in fractions.

Here, “1” is an example of the judgment value of the fraction.
/ 10, 2/10, 3/10, 4/10, 5 /
10, "6/10" and "Others" are displayed. When the user selects, for example, “2/10” from the choices of the fraction, the control unit 9 determines that the remaining capacity of the battery 14 is “2/1”.
The value corresponding to the terminal voltage of the battery 14 when it becomes "0" is set in the level determination unit 17 as a level determination value.

Further, on the display screen of FIG.
When is selected, as shown in FIG. 4D, the screen changes to a screen for directly inputting a determination value for prompting charging of the battery 14 by the key input unit 11 as a fraction. In this case, the user inputs a desired fraction value. It is to be input by the key input unit 11.

Also in this case, the control unit 9 sends the value corresponding to the terminal voltage of the battery 14 when the remaining capacity of the battery 14 becomes a fractional value directly input by the user to the level determination unit 17 as a level determination value. Is set.

The value corresponding to the terminal voltage of the battery 14 with respect to the remaining capacity of the battery 14 expressed as a fractional value is measured in advance and stored in the memory 13 as a table.
By reading the value corresponding to the terminal voltage of the battery 14 for the fractional value selected or input from this table, the desired level determination value can be easily set in the level determination unit 17. When a fraction value not stored in this table is selected or input, a value corresponding to the terminal voltage of the battery 14 with respect to the fraction value not stored in this table is calculated by, for example, interpolation processing. What is necessary is just to comprise so that it may set to the level determination part 17.

The level judging section 17 includes the battery voltage detecting circuit 1
The digital value corresponding to the terminal voltage of the battery 14 detected from 6 is compared with the level determination value set by the control unit 9, and the digital value corresponding to the terminal voltage of the battery 14 is set by the control unit 9. When it decreases to the level judgment value,
This is notified to the control unit 9, and the control unit 9 drives the display unit 12 in response to the notification to charge the battery 14 on the display screen of the display unit 12 as shown in FIG. Is displayed to prompt the user to charge.

It should be noted that which value of the above-mentioned fraction is selected or input by the user depends on the user's use of the portable telephone 100. For example, if the user wants to be notified of the charge recommendation when the remaining amount of the battery 14 is reduced to half because the user talks for many hours, the user selects 5/10 from the fractional value options shown in FIG. If the user only charges once a week and always carries the charger, for example, 1/10 is selected, and when 9/10 of the capacity of the battery 14 is used, the charge recommendation notification is issued. It is enough to let them.

Further, the user who has to leave the charger at home and charge once a week may select 2/10 with a margin. In any case, according to this setting method, a simple operation of selecting or inputting a judgment value serving as a guideline of the charging notification desired by the user as a fractional value is displayed at an optimal timing corresponding to the user's usage pattern. It is possible to perform a charge display prompting charging on the display screen of the unit 12.

FIG. 5 shows the setting mode “remaining capacity setting”.
5 is an example of a display screen illustrating a charge recommendation notification determination value input process when “percent input” is selected as a determination value input for performing notification to prompt charging.

First, the display screen of the display unit 12 is shown in FIG.
As shown in FIG. 4A, a menu screen similar to FIG. 4A for selecting any one of the setting modes of “remaining capacity setting” and “time setting” is displayed.

Here, "remaining capacity setting"
When you select, “Remaining capacity setting” is highlighted,
The display screen of the display unit 12 is, as shown in FIG.
The display screen changes to a display screen similar to that of FIG. 4B in which options of “minute input”, “percent input”, and “call / standby time input” are displayed.

Here, when the user selects "percent input", a display screen for selecting a determination value for prompting charging of the battery 14 by percentage is displayed on the display unit 12, as shown in FIG. 5C. .

Here, as examples of percentage judgment values, "10", "20", "30", "40", "50", "60"
"Other" is displayed. When the user selects, for example, “20” from the options of the percentage, the control unit 9 sets the value corresponding to the terminal voltage of the battery 14 when the remaining capacity of the battery 14 becomes “20” percent to the level. The value is set in the level determination unit 17 as a determination value.

Further, on the display screen of FIG.
If is selected, as shown in FIG. 5D, the screen changes to a screen for directly inputting a determination value for prompting charging of the battery 14 by the key input unit 11 as a percentage. In this case, the user sets a desired percentage value. It is to be input by the key input unit 11.

In this case as well, the control unit 9 sends the value corresponding to the terminal voltage of the battery 14 when the remaining capacity of the battery 14 reaches the percentage value directly input by the user to the level determination unit 17 as the level determination value. Is set.

In this case as well, a value corresponding to the terminal voltage of the battery 14 with respect to the remaining capacity of the battery 14 expressed as a percentage value is measured in advance and stored in the memory 13 as a table. By reading a value corresponding to the terminal voltage of the battery 14 with respect to the percentage value selected or input from the table, a desired level determination value can be easily set in the level determination unit 17. When a percentage value not stored in this table is selected or input, the battery 1 for the percentage value not stored in this table is subjected to, for example, interpolation processing.
A value corresponding to the terminal voltage of No. 4 may be calculated and set in the level determination unit 17.

The level determination section 17 is provided with the battery voltage detection circuit 1
The digital value corresponding to the terminal voltage of the battery 14 detected from 6 is compared with the level determination value set by the control unit 9, and the digital value corresponding to the terminal voltage of the battery 14 is set by the control unit 9. When it decreases to the level judgment value,
This is notified to the control unit 9, and the control unit 9 drives the display unit 12 in response to the notification to charge the battery 14 on the display screen of the display unit 12 as shown in FIG. Is displayed to prompt the user to charge.

According to such a setting method, a simple operation of selecting or inputting a judgment value serving as a guide for charging information desired by the user as a percentage value is displayed at an optimum timing corresponding to the usage pattern of the user. It is possible to perform a charge display prompting charging on the display screen of the unit 12.

FIG. 6 illustrates the charge recommendation notification determination value input processing when "time setting" is selected as the setting mode and "call / standby time input" is selected as the determination value input for providing notification for charging. It is an example of a display screen to be displayed.

First, the display screen of the display unit 12 is shown in FIG.
As shown in FIG. 4A, a menu screen similar to FIG. 4A for selecting one of the setting modes of “remaining capacity setting” and “time setting” is displayed.

Here, when "time setting" is selected by a user input, "time setting" is highlighted and then the display screen of the display section 12 displays "minute input" as shown in FIG. ”,“ Percentage input ”,“ Call / standby time input ”
The display screen is changed to a display screen similar to that shown in FIG.

Here, the user inputs "call / standby time input".
When is selected, a display screen is displayed on the display unit 12 in which a determination value for prompting charging of the battery 14 is input by "call time" and "standby time" as shown in FIG. 6C.

On the display screen shown in FIG. 6 (c), the "call time" and "standby time"
Is input by the user, and the set value is calculated from the input value.

For example, if the user talks for about 10 minutes a day and wants to be informed that the battery should be exhausted one day before the battery runs out, the talk time should be 10 minutes and the standby time should be 24 hours. 6 (c) is entered on the input screen.

Here, the power consumption of the battery 14 can be calculated by the following equation: talk time × consumption current during call + standby time × consumption current during stand-by. When the receiving current consumption is 3 mA, the battery 1 in the case of a talk time of 10 minutes and a standby time of 24 hours
Power consumption of 4 is: 10 minutes / 60 minutes × 350 mA + 24 hours × 3 mA = 13
0 mAH.

Therefore, in this case, a value corresponding to the terminal voltage of the battery 14 when the remaining power of the battery 14 becomes 130 mAH is set in the level determination section 17 as a level determination value.

Also in this case, a value corresponding to the terminal voltage of the battery 14 with respect to the remaining power of the battery 14 is measured in advance and stored in the memory 13 as a table, and the control unit 9 calculates the value of the battery 14 calculated from this table. By reading a value corresponding to the terminal voltage of the battery 14 with respect to the remaining power, the level determination value can be easily set in the level determination unit 17. When the residual power not stored in this table is input, a value corresponding to the terminal voltage of the battery 14 with respect to the residual power not stored in this table is calculated and calculated by, for example, interpolation processing or the like to determine the level. What is necessary is just to comprise so that it may set to the part 17.

The level judging section 17 includes the battery voltage detecting circuit 1
The digital value corresponding to the terminal voltage of the battery 14 detected from 6 is compared with the level determination value set by the control unit 9, and the digital value corresponding to the terminal voltage of the battery 14 is set by the control unit 9. When it decreases to the level judgment value,
This is notified to the control unit 9, and the control unit 9 drives the display unit 12 in response to the notification to charge the battery 14 on the display screen of the display unit 12 as shown in FIG. Is displayed to prompt the user to charge.

Even with such a setting method, the optimum timing corresponding to the usage pattern of the user can be obtained simply by inputting the judgment value serving as a guide of the charging notification desired by the user to the talk time and the standby time. Thus, it is possible to perform a charge display prompting charging on the display screen of the display unit 12.

In the method shown in FIG. 6, the level determination value is set in the level determination unit 17 by actually inputting the talk time and the standby time. By allowing the user to select the frequency of use, for example, “call for many hours”, “normal”, or “seldom talk”, the time to prompt charging is set to “two days ago”,
It is also possible to configure so that a desired charging notification can be performed only by vaguely inputting “one day before”, “half a day before”, and “six hours before”.

FIG. 7 shows a charge recommendation notification determination value input process when “time setting” is selected as the setting mode, “normal” is selected as the use frequency, and “one day before” is selected as the time to promote charging. It is a display screen example for description.

First, the display screen of the display section 12 shows FIG.
As shown in FIG. 4A, a menu screen similar to FIG. 4A for selecting any one of the setting modes of “remaining capacity setting” and “time setting” is displayed.

Here, when "time setting" is selected by user input, "time setting" is highlighted and then the display screen of the display unit 12 displays "multi-time" as shown in FIG. The display changes to a display screen on which options of "call", "normal" and "almost no call" are displayed.

Here, when the user selects “normal”,
The display unit 12 displays “2 days ago” as shown in FIG.
The display screen changes to a display screen on which options of “one day before”, “half a day before”, “6 hours ago”, and “other” are displayed.

Here, if "one day ago" is selected, the frequency of use is "normal" and the value corresponding to the terminal voltage of the battery 14 corresponding to the remaining capacity of the battery 14 "one day ago" is determined by the level determination unit 17. Is set as the level determination value.

When "others" is selected on the display screen shown in FIG. 7C, as shown in FIG. 7D, the key input unit 11 is used to directly input the timing for prompting the battery 14 to be charged. In this case, the user inputs a desired time, for example, how many days ago.

Also in this case, the control unit 9 sets the value corresponding to the terminal voltage of the battery 14 for the selected use frequency and the input time as the level determination value in the level determination unit 17.

Here, the setting of the above-mentioned level judgment value is set to “two days before”, “one day before”,
Battery 14 corresponding to a period such as "half a day before" or "6 hours before"
The controller 9 predicts the value corresponding to the terminal voltage of the battery 14 and stores it in the memory 13 as a table, and the controller 9 reads out the value corresponding to the terminal voltage of the battery 14 from this table to easily determine the level. A level determination value can be set in the unit 17.

The level judging section 17 includes the battery voltage detecting circuit 1
The digital value corresponding to the terminal voltage of the battery 14 detected from 6 is compared with the level determination value set by the control unit 9, and the digital value corresponding to the terminal voltage of the battery 14 is set by the control unit 9. When it decreases to the level judgment value,
This is notified to the control unit 9, and the control unit 9 drives the display unit 12 in response to the notification to charge the battery 14 on the display screen of the display unit 12 as shown in FIG. Is displayed to prompt the user to charge.

According to such a setting method, it is possible to perform charging display for prompting charging on the display screen of the display unit 12 at an optimal timing corresponding to the user's usage pattern only by the vague input by the user. It becomes very convenient.

In the method shown in FIG. 7, the user is allowed to select the frequency of use, for example, "call for many hours", "normal", or "almost no call". If the frequency of use is measured from past usage patterns and is determined in a learning manner, the use frequency of the user determined in the learning can be used to omit the selection of the usage frequency for the user, Further, in this case, a charging display for prompting charging based on the actual use results of the user is performed, so that more optimal charging notification can be accurately performed.

FIG. 8 is an example of a display screen in which the charge recommendation notification determination value input process can be performed by simply selecting “time setting” as the setting mode and selecting a time to promote charging. First,
On the display screen of the display unit 12, as shown in FIG.
A menu screen similar to that of FIG. 4A for selecting any one of the setting modes of “remaining capacity setting” and “time setting” is displayed.

Here, when "time setting" is selected by a user input, "time setting" is highlighted, and then the display screen of the display unit 12 displays "2 days ago" as shown in FIG. The screen changes to a display screen on which options of "1 day ago", "half day ago", "6 hours ago", and "other" are displayed.

When "one day ago" is selected, a value corresponding to the terminal voltage of the battery 14 whose remaining capacity is equivalent to "one day ago" is set based on the use history of the mobile phone 100 measured in advance. The value is set in the level determination unit 17 as a level determination value.

When "others" is selected on the display screen shown in FIG. 8B, the time for prompting charging of the battery 14 is directly input by the key input unit 11 as shown in FIG. 8C. In this case, the user inputs a desired time, for example, how many days ago.

In this case as well, control unit 9 sets in level determination unit 17 a value corresponding to the terminal voltage of battery 14 with respect to the actual use result of portable telephone 100 and the input time measured in advance as a level determination value. Will be.

According to such a setting method, the charge display for prompting the charge on the display screen of the display unit 12 at the optimal timing corresponding to the usage pattern of the user only by the user's ambiguous input of the prompt for prompting the charge of the battery 14 is provided. Can be performed, which is more convenient.

[0096]

As described above, according to the present invention, the terminal voltage of the battery is compared with the set value for prompting the charging calculated from the determination value for performing the notification for prompting the charging, and the terminal voltage of the battery is set at the set value. The system is configured to visually, audibly, and intuitively prompt the user to charge the battery when the value drops to a lower level. This has the effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a mobile phone configured by applying a mobile wireless terminal according to the present invention.

FIG. 2 is a flowchart showing an operation of a charge recommendation notification in a control unit shown in FIG. 1;

FIG. 3 is a diagram showing a display example of a display unit when prompting charging in the mobile wireless terminal according to the present invention.

FIG. 4 is a diagram showing an example of a display screen of a display unit when a set value setting method of “remaining capacity setting” is selected and “fraction input” is selected as a determination value input method for performing notification to prompt charging;

FIG. 5 is a diagram illustrating an example of a display screen of a display unit when a setting value setting method of “remaining capacity setting” is selected and “percent input” is selected as a determination value input method for performing notification for prompting charging;

FIG. 6 shows an example of a display screen of the display unit when a set value setting method of “remaining capacity setting” is selected and “call / standby time input” is selected as a determination value input method for notifying the user of charging. FIG.

FIG. 7 is a diagram showing an example of a display screen of a display unit when a setting method of “time setting” is selected and “normal” is selected as a use frequency.

FIG. 8 is a diagram showing an example of a display screen of a display unit showing a setting value setting method in “time setting” when battery usage result data of a user is set.

FIG. 9 is a graph showing a relationship between a normalized discharge time and a normalized battery voltage at the time of talking on the battery of the mobile phone and during standby.

FIG. 10 is a view showing a conventional display screen for displaying a remaining amount of a battery.

FIG. 11 is a diagram showing another example of another conventional battery remaining amount display.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 antenna 2 transmission / reception switching unit 3 transmission unit 4 modulation unit 5 microphone 6 reception unit 7 demodulation unit 8 speaker 9 control unit 10 sounder 11 key input unit 12 display unit 13 memory 14 battery 15 power supply unit 16 battery voltage detection circuit 17 level determination unit 100 Mobile phone 121 Display screen 72 Key input section

Claims (9)

[Claims] 1. A mobile wireless terminal having a built-in rechargeable battery and operating by being supplied with power from the battery, a detecting means for detecting a remaining amount of the battery, and a setting for setting a set value for prompting charging of the battery. Means for comparing the remaining amount of the battery detected by the detection means with the set value set by the setting means, and providing a notification for prompting charging of the battery based on the comparison result. A mobile wireless terminal characterized by the above-mentioned. 2. The mobile radio terminal according to claim 1, wherein said detecting means detects a remaining amount of said battery based on a terminal voltage of said battery. 3. The setting means includes: input means for inputting a determination value serving as a guide for performing notification by the notification means; and setting value setting means for setting the setting value based on the determination value input by the input means. The mobile radio terminal according to claim 1, comprising: 4. The mobile radio terminal according to claim 3, wherein the input unit inputs, as the determination value, a ratio of a remaining battery level for performing the notification to the battery capacity. 5. The mobile radio terminal according to claim 3, wherein the input unit inputs a usable period of the battery as the determination value. 6. The mobile radio terminal according to claim 3, wherein the input unit inputs a talkable time and a standby time of the battery as the determination value. 7. A set value setting unit, comprising: a calculation unit configured to calculate the set value based on the determination value and an actual use result of the battery; and a unit configured to set the set value based on a value calculated by the calculation unit. The mobile radio terminal according to claim 3, comprising: 8. The display means for displaying, when the remaining amount of the battery detected by the detection means has decreased to a set value set by the setting means, a display for prompting charging of the battery. The mobile radio terminal according to claim 1, comprising: 9. The notifying unit further includes a notifying sound generating unit that generates a notifying sound for urging the charging of the battery after a lapse of a predetermined time from the display prompting the charging of the battery by the detecting unit. The mobile radio terminal according to claim 8, wherein: