JPH10234079A - Portable telephone set with display function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the power consumption and to provide excellent practical performance to the telephone set by lighting a light while luminance of the light is dimmed as required corresponding to the residual capacity of batteries being a plurality of divisions and putting out the light when the residual capacity of the batteries is furthermore decreased. SOLUTION: A luminance adjustment section 14 is controlled by a control section 1 based on residual capacity of battery data from a battery residual capacity detection circuit 21 to control the lightness of each light. When the battery residual capacity is a 1st prescribed capacity or below, the lightness of the light is dimmed and when the battery residual capacity is a 2nd prescribed value that is smaller than the 1st prescribed value or below, the highest priority of power consumption is placed on a speech function in order to improve a speech time being a main function and no light is lighted. Furthermore, in the case of receiving a call and the battery residual capacity is the 1st prescribed value or below, only specific keys selected in advance are lighted. When the battery residual capacity is less than the 1st prescribed value or below, the lighting time of the light is decreased more than a prescribed time.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone with a display function for controlling a lighting light in accordance with a use state of a battery.

[0002]

2. Description of the Related Art In the prior art, a portable telephone with a display function is provided with a light so that the display contents and operation buttons can be recognized even in darkness at night or the like. In some cases, when a key input operation such as a telephone number is performed, illumination of a backlight or a dial light is automatically turned on.

[0003] As shown in FIG.
No. 6, a clock unit 13a is provided, and a key operation unit 9a is provided.
When a telephone number or the like is input, the control unit 1a detects an input of a key operation, reads time information of the clock unit 13a, and turns on the illumination 10a (backlight) according to the read time information.

Further, as shown in FIG.
No. 33854, the key operation unit 9b and the illumination unit 11
b, and a light amount detecting unit 12b for detecting ambient brightness when the key operation unit 9b is input.
In some cases, the illumination is turned on in accordance with the surrounding brightness condition by the output of.

[0005]

As described above, the conventional display-equipped mobile telephone has a function of detecting a key input operation such as a telephone number input or a call, regardless of the remaining battery level. When the lighting is dark or at a certain time, the lighting is always turned on. For example, when there is a call, even if the surroundings are bright, it is unnecessary to turn on the light when the phone is in the bag or in the pocket of clothes. There was a problem that lighting could not be stopped and wasteful power was consumed.

In addition, even when the remaining battery power is low, all the lights are turned on in the same manner, so that there is a problem that the main function of the call is terminated early during the call.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and when the remaining battery power falls below a predetermined value,
An object of the present invention is to reduce power consumption by turning on or off a lighting by adjusting a dimming of a lighting.

According to the first aspect of the present invention, the brightness of the illumination is dimmed and turned on when necessary according to the remaining battery power, and when the remaining battery power is further reduced, the lighting is turned off to reduce power consumption. It is an object of the present invention to provide a mobile phone with a display function that can reduce the number of mobile phones.

According to the second aspect of the present invention, the operation can be easily performed even in a dark place corresponding to the remaining battery level, and the brightness can be adjusted and turned on when necessary, thereby reducing power consumption. It is intended to obtain a mobile phone with a display function.

A third aspect of the present invention is to improve the talk time, which is the main function, in response to the remaining battery power. The call is given top priority, and the lighting is turned off to reduce power consumption. It is an object of the present invention to obtain a mobile phone with a display function capable of performing the following.

According to a fourth aspect of the present invention, there is provided a portable telephone having a display function capable of reducing power consumption by turning on or turning on illumination necessary for an incoming call in accordance with the remaining battery level. It is to try.

According to a fifth aspect of the present invention, there is provided a portable telephone with a display function capable of reducing power consumption by turning on a lighting time shorter than a predetermined time when necessary according to the remaining battery power. It is to try.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a portable telephone with a display function according to the first aspect of the present invention, wherein an operation section, a display section, the operation section or the display section is provided. In a portable telephone with a display function including a lighting unit that illuminates a battery, a battery remaining amount detection circuit that detects a remaining amount of a battery that drives the telephone body, and a brightness adjustment unit that adjusts brightness of illumination of the lighting unit. The battery remaining amount detected by the battery remaining amount detection circuit is determined, and the brightness of the illumination of the illumination unit is dimmed and turned on or off in accordance with the divided battery remaining amount level. And a control unit for controlling.

In the portable telephone with a display function according to a second aspect of the present invention, the control unit adjusts the brightness of the illumination of the illumination unit when the determined remaining battery level is equal to or less than the first predetermined value. It is designed to light up.

In the portable telephone with a display function according to a third aspect of the present invention, the control unit is configured to illuminate the illumination unit when the determined remaining battery level is equal to or less than a second predetermined value that is smaller than the first predetermined value. Is not turned on.

In the portable telephone with a display function according to a fourth aspect of the present invention, the control unit is configured to determine whether the remaining battery level is equal to or less than a first predetermined value when a call is made via a wireless line. Only the selected specific key is turned on.

In the portable telephone with a display function according to a fifth aspect of the present invention, when the determined remaining battery level is equal to or less than the first predetermined value, the control unit sets the lighting time of the illumination unit to be shorter than the predetermined time. It is designed to light up.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. Hereinafter, Embodiment 1 of the present invention will be described.
Details will be described with reference to the drawings. FIG. 1 is a block diagram of a mobile phone with a display function according to Embodiment 1 of the present invention. In the figure, reference numeral 4 denotes a transmitting / receiving antenna, and 3 denotes a radio unit including a transmitting circuit and a receiving circuit. Further, reference numeral 16 denotes a ringer for incoming calls, and 1 denotes a control unit for system control, and each unit is controlled by the control unit 1. Also,
Reference numeral 9 denotes an operation unit having a dial key for inputting a telephone number or the like and a talk key for selecting a call or an end call. Reference numeral 11 denotes an illumination unit for the dial light of the operation unit 9. The illumination of the dial keys and talk keys of the operation unit 9 are integrated.

Then, the output of the operation unit 9 is supplied to the control unit 1, and the lighting of the illumination of the illumination unit 11 is controlled by the control unit 1. Reference numeral 8 denotes a display unit, which displays various information such as a called telephone number and a remaining battery level. In this example, an LCD is shown. Reference numeral 10 denotes a backlight illumination unit of the display unit 8, and the illumination unit 10 is integrated with the display unit 8. Further, 2 is a battery for driving the telephone body, 20 is a power supply circuit which receives power supply from the battery 2 and generates and stabilizes a power supply voltage necessary for the system, 21
Indicates a battery remaining amount detection circuit for detecting the remaining amount of the battery 2. 5
Denotes an audio signal processing unit, 6 denotes a transmitter, and 7 denotes a receiver. 1
Reference numeral 4 denotes a brightness adjustment unit which is controlled by the control unit 1 based on the battery remaining amount data of the battery remaining amount detection circuit 21 and adjusts the light emission brightness of the illumination units 10 and 11 for illuminating the display unit 8 or the operation unit 9. .

In this example, reference numeral 91 denotes an open / close switch for a cover (not shown). The switch 91 is for detecting the use state of the telephone body, and its switch output FS is also controlled by the control unit. 1 is supplied. The switch output FS is FS = 1 when the lid is opened, and F when the lid is closed.
It is configured so that S = 0. And the control unit 1
Means that the signal BS of the battery level detection circuit 21 is bc2 to Full
At 1, when the signal FS is present, that is, when FS = 1, the illuminations of the illumination units 10 and 11 are turned on.
According to such a configuration, the basic operation or processing as the telephone is executed as follows.

That is, when the talk key of the operation unit 9 is pressed while the telephone body is in the standby state, the transmission of the transmission circuit in the radio unit 3 is permitted by the control unit 1 and a predetermined communication with the base station is performed. Is executed, the communication channel is opened, and the call is made. Then, when the other party's telephone number is input from the dial key of the operation unit 9, this is transmitted to the base station, and the other party's telephone is called.
Then, when the other party answers the telephone, the voice signal of the other party is taken out of the receiving circuit of the wireless unit 3, subjected to voice processing in the voice processing circuit 5, and supplied to the receiver 7. The audio signal from the transmitter 6 is signal-processed by the audio processing circuit 5 and supplied to the transmission circuit of the wireless unit 3 to be sent to the other party's telephone. Therefore, it is possible to make a call with the other party.

When the talk key is pressed or the cover is closed when the call is over, the base station is notified of the end of the call and the communication channel with the base station is established. The phone is closed and the phone returns to the standby state again.

Further, when there is an incoming call in the standby state, the control unit 1 is notified of the incoming call.
Is permitted, a predetermined protocol is executed with the base station, and a communication channel is opened. Further, the control unit 1
As a result, the ringer 16 is driven to emit a ringer sound indicating an incoming call. Then, when the talk key of the operation unit 9 is pressed, the fact that the talk key is pressed is transmitted to the base station, and the base station enters a talking state. On the other hand, the ringer sound is stopped by the control unit 1, and thereafter, the telephone can be used to talk with the other party.

Then, in addition to the above operations and processes,
Further, the following operation or processing is executed by the control unit 1. The operation will be described with reference to FIGS.

In this portable telephone, the lighting units 10 and 11 are controlled according to the operation state. First, when the power of the telephone body is turned on, the lighting mode is initially set. Next, a standby state is entered (step S0).
First, the remaining battery level is checked from the signal BS from the remaining battery level detection circuit 21 (step S1). Then,
In the lighting control mode setting (step S2), in S2 of FIG.
As shown in the figure, the capacity that can be actually used from the total capacity of the battery 2 is divided into three from empty to full, and the capacity is changed from “0” to “b”.
The remaining level up to "c2" is a predetermined value 2, the remaining level from the capacity "bc2" to "bc1" is a predetermined value 1, and the signal BS from the battery level detection circuit 21 changes from "0" to "bc2".
(I.e., the illumination OFF mode) in which the illumination is not turned on if the value is within the range of (2) (step S2).
a) If the signal BS is in the range from “bc2” to “bc1”, that is, if the signal BS is within the predetermined value 1, the lighting units 10 and 1
The "illumination brightness adjustment mode" for adjusting the amount of emitted light is set (step S2b). Further, the signal BS is "bc
If "1" is exceeded, "normal lighting mode" is set (step S2c), and the lighting control mode is set according to normal lighting conditions.

Thereafter, the state of the operation unit 9 is checked (step S3a). If the operation unit 9 has not been operated, it is determined whether or not a call is being made (step S4). If not, the process returns to the standby state (step S0). After the lighting mode of only the call key is set and the corresponding lighting is turned on or the brightness is adjusted and turned on (step S2b), the state of the operation unit 9 is checked again to answer the incoming call, and the loop is repeated until a response operation is performed. On the other hand, when the key of the operation unit 9 is pressed or the lid is opened, the process proceeds to the next step (step S3b). When it becomes possible to talk by the key operation etc.,
Turn off the lights and proceed to normal call processing.

On the other hand, in step S3a, when the key of the operation unit 9 is pressed or the lid is opened, the illumination units 10, 1
Each lighting control mode in which one lighting is set according to the remaining battery level in step S2 is confirmed (step S2).
5) At the same time, an initial process of the corresponding lighting control mode is executed (step S6). If the remaining battery level is in the range from “bc1” to “bc2”, the brightness adjustment unit 1 has a predetermined relationship.
Through 4, the brightness is adjusted and the illumination is turned on. If the remaining battery power is equal to or more than "bc1", the light is turned on in the normal mode.

After the lighting is turned on in step S6, it is checked in step S7 whether the lighting has been turned on for a predetermined time. If the lighting is turned on for a predetermined time, a timer for controlling the lighting time is cleared. Next, after the timer counts, the press of the key of the operation unit 9 is checked again.
When a key is pressed, a predetermined key input process is performed, and the timer is cleared. If no key is pressed, the presence or absence of a connection channel is checked. If there is a communication channel, the timer is cleared again. If there is no key press and no connection of the communication channel, the mobile phone returns to the standby state (step S0). Further, the lighting time, that is, the counter value of the timer is changed based on the remaining battery value BS, and the lighting time is controlled to be shorter as the remaining battery value BS decreases.

A predetermined operation of the operation unit 9, for example,
By pressing a plurality of keys at the same time, the user can specify a specific key to be illuminated by the user, and the user can arbitrarily set the brightness of the illumination of the illumination units 10 and 11 and the length of a predetermined time for illumination. May be set.

Thus, according to the above configuration, in the portable telephone, when the remaining amount of the battery 2 is low, the brightness of the illumination of the lighting units 10 and 11 is adjusted according to the level of the remaining amount of the battery to turn on or off. Therefore, power saving can be achieved. Further, the operation unit 9 can be easily confirmed even in a dark place, and the operation can be easily and surely performed. In addition, the call is given top priority, and the power consumption of the lighting units 10 and 11 is adjusted and lit while comparing the power consumption with the battery capacity, so that the power consumption of the battery 2 for driving the telephone body can be minimized. The time that can be used by one charge can be extended.

[0031]

As described above, according to the first aspect of the present invention, the brightness of the illumination is adjusted to be dimmed when necessary according to the divided remaining battery level, and the remaining battery level is further reduced. When the value is reduced to a certain value or less, the illumination is turned off, so that a portable telephone with a display function having excellent practical performance and capable of reducing power consumption can be provided.

According to the second aspect of the invention, when the remaining battery power drops below the first predetermined value, the brightness of the illumination is adjusted to dim the lighting, so that the power consumption is reduced. A portable telephone with a display function having excellent practical performance can be provided.

According to the third aspect of the present invention, when the remaining battery power drops below a second predetermined value which is smaller than the first predetermined value, a call is made in order to improve a talk time which is a main function. Since the lighting is turned off with the highest priority, a portable telephone with a display function having excellent practical performance and capable of reducing power consumption can be provided.

According to the fourth aspect of the invention, when the remaining battery power drops below the first predetermined value, the illumination of only a specific key necessary for an incoming call is turned on or the brightness is adjusted, so that the consumption is reduced. A portable telephone with a display function that has excellent practical performance and can reduce power consumption can be provided.

Further, according to the fifth aspect, when the remaining battery power drops below the first predetermined value, the lighting time of the illumination is set to be shorter than the predetermined time, so that the power consumption can be reduced. A portable telephone with a display function having excellent practical performance that can be achieved can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram of a mobile phone according to Embodiment 1 of the present invention.

FIG. 2 is a flowchart showing an operation of the first embodiment of the present invention.

FIG. 3 is an operation explanatory diagram of the first embodiment of the present invention.

FIG. 4 is a block diagram of a conventional portable telephone.

FIG. 5 is a block diagram of a conventional portable telephone.

[Explanation of symbols]

1 control unit, 2 batteries, 3 wireless units, 4 antennas, 5
Audio circuit, 6 microphone, 7 receiver, 8 display unit, 9 operation unit, 10 display unit illumination unit, 11 operation unit illumination unit, 14 brightness adjustment unit, 16 sounders, 20 power supply circuit, 21 battery remaining amount detection circuit, 91 open / close switch,
BS Output signal of battery remaining amount detection circuit 21, FS open / close switch signal.

Claims (5)

[Claims] 1. A mobile phone with a display function, comprising: an operation unit, a display unit, and an illumination unit for illuminating the operation unit or the display unit. An amount detection circuit, a brightness adjustment unit that adjusts the brightness of the illumination of the illumination unit, and a battery remaining amount detected by the battery remaining amount detection circuit is determined. A control unit for controlling the brightness of the illumination of the illumination unit to be turned on or off by dimming the brightness of the illumination of the illumination unit. 2. The control unit according to claim 1, wherein the determined remaining battery level is a first battery level.
The portable telephone with a display function according to claim 1, wherein when the value is equal to or less than a predetermined value, the brightness of the illumination of the illumination unit is adjusted so as to reduce the brightness. 3. The control unit according to claim 1, wherein the determined remaining battery level is a first battery level.
The portable telephone with a display function according to claim 1, wherein the illumination of the illumination unit is not turned on when the remaining amount is smaller than a second predetermined value that is smaller than the predetermined value. 4. The control unit according to claim 1, wherein, when a call is made via a wireless line, when the determined remaining battery level is equal to or less than a first predetermined value, only a specific key selected in advance is turned on. The mobile phone with a display function according to claim 1. 5. The controller according to claim 1, wherein the determined remaining battery level is a first battery level.
The portable telephone with a display function according to claim 1, wherein when the value is equal to or less than a predetermined value, the lighting time of the illumination of the illumination unit is shorter than the predetermined time.