JPH104448A - Portable telephone set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce light quantity of a light part and to cut consumption in a drive power supply part when drive voltage decreases by adjusting light quantity of emitting light based on change of the drive voltage. SOLUTION: Drive voltage of a drive power supply part 2 is detected in a voltage detection part 13, and this detected output VPS is sent to a control part 1. The part 1 receives the output VPS and compares it with a 1st threshold BL1. When the VPS is less than or equal to the BL1, light quantity is set at 'small'. When the VPS is more than or equal to the BL1, the VPS is compared with a 2nd threshold BL2. As a result, when the VPS is less than or equal to the BL2, the light quantity is set at 'middle' and a lighting control part 12 is activated. When the part 12 is activated, lighting parts 16 and 17 emit light according to the light quantity which is set in part 1. Furthermore, when the VPS is more than or equal to the BL2, the light quantity is set at 'large', and the part 12 is activated. Therefore, when drive voltage of the part 2 is low, the light quantity of the part 16 and 17 is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone provided with a lighting unit such as a light-emitting diode for lighting a display unit and an operation unit.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional portable telephone performs transmission and reception under the control of a control unit 1 for controlling the entire portable telephone, a drive power supply unit 2 for driving the portable telephone, and the control unit 1. A radio unit 3, an antenna 4 necessary for transmission and reception of the radio unit 3, an audio control unit 5 for performing audio signal processing suitable for radio transmission and reception in the radio unit 3 based on control of the control unit 1, and an audio signal processing unit A transmitter 6 for sending a voice signal to the receiver 5, a receiver 7 for outputting voice from the voice signal processor 5, an operation unit 8 for inputting an operation command signal to the controller 1,
A display unit 9 for displaying predetermined characters and symbols under the control of the control unit 1;
0,11.

Next, the operation of the part related to the present invention will be described. Since the display unit 9 and the operation unit 8 of the mobile phone are difficult to see when the use environment is dark, when the operation unit 8 is operated, the operation unit 8 sends a lighting instruction signal to the control unit 1. The control unit 1 that has received the lighting command signal turns on the lighting unit 1
0 and the illuminating unit 11 are controlled to be lit at a fixed amount of light.
Thereby, the display unit 9 and the operation unit 8 are illuminated, and the display unit 9 and the operation unit 8 are easy to see for the user.

[0004]

The above-mentioned conventional portable telephone is constructed as shown in FIG.
Since the illumination light amounts of 0 and 11 are fixed and cannot be adjusted to the light amount according to the drive voltage of the drive power supply unit 2,
When the driving voltage of the driving power supply unit 2 decreases, the lighting unit 10
The consumption of the driving power by the method 11 causes a problem that it is difficult to secure a driving voltage necessary for a telephone call which is an original purpose of the mobile phone.

It is an object of the present invention to provide a portable telephone capable of adjusting the amount of light of an illumination section for illuminating a display section and an operation section in accordance with a drive voltage of a drive power supply section.

[0006]

A portable telephone according to the present invention comprises:
It is characterized in that the power supply unit is reduced in consumption by having an illumination unit that adjusts the amount of emitted light based on a change in the drive voltage of the drive power supply unit accompanying use of the mobile phone detected by the voltage detection unit.

Further, the portable telephone according to the present invention has a lighting unit which emits light with a fixed amount of light, and a lighting unit which adjusts the amount of emitted light based on a change in driving voltage of a driving power supply unit accompanying use of the portable telephone detected by the voltage detecting unit. And reducing the power consumption of the driving power supply unit.

[0008]

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

FIG. 1 is a block diagram showing a first embodiment of the portable telephone according to the present invention. The mobile phone of FIG. 1 includes a control unit 1 that controls the entire mobile phone, a driving power supply unit 2 that drives the mobile phone, a wireless unit 3 that performs transmission and reception, and an antenna 4 that is necessary for transmission and reception of the wireless unit 3. A voice control unit 5 for performing voice signal processing suitable for wireless transmission and reception in the wireless unit 3 based on the control of the control unit 1, a transmitter 6 for sending a voice signal to the voice control unit 5, and a voice control unit A receiver 7 for outputting voice from the display unit 5, a display unit 14 for displaying predetermined characters, symbols, and the like according to the control unit 1, an operation unit 15 for a user to input an operation signal, a display unit 14, and an operation unit 15 Illuminating sections 16 and 17 for illuminating. These parts are the same as or equivalent to the corresponding parts in the related art.

The present invention further includes a voltage detector 13 for detecting the drive voltage of the drive power supply 2 and an illumination controller 12 for adjusting the amount of light emitted from the illumination units 16 and 17 based on the detection output of the voltage detector 13. Have.

Next, the operation of the first embodiment of the present invention will be described in detail with reference to the flowchart of FIG.

The drive voltage of the drive power supply 2 is detected by a voltage detector 13.
, And sends the detection output VPS to the control unit 1. The control unit 1 receives the detection output VPS and compares it with the first threshold value BL1 in step 102. V
If PS is equal to or less than BL1, the routine proceeds to step 103, where the light amount is set to "small".

If the VPS is equal to or greater than BL1, the routine proceeds to step 104, where the VPS is compared with a second threshold value BL2. As a result, if VPS is equal to or less than BL2, step 1
05, the light amount is set to “medium”, and the illumination control unit 12
Start When the illumination control unit 12 is activated, the illumination unit 10 and the illumination unit 11 are operated according to the amount of light set in the control unit 1.
Emits light.

If the VPS is equal to or greater than "BL2", the process proceeds to step 106, where the light amount is set to "large", and the illumination control unit 12 is activated.

Therefore, in the portable telephone of this embodiment, when the drive voltage of the drive power supply unit 2 is small, the light amount of the illumination units 16 and 17 is reduced, and the consumption of the drive power supply unit by the illumination units 16 and 17 is reduced. You can do it.

Here, two values are compared with the VPS, but may be one or three or more.

Next, a second embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. The mobile phone of FIG. 3 includes a control unit 1 that controls the entire mobile phone, a driving power supply unit 2 that drives the mobile phone, a wireless unit 3 that performs transmission and reception, and an antenna 4 that is necessary for transmission and reception of the wireless unit 3. A voice control unit 5 for performing voice signal processing suitable for wireless transmission and reception in the wireless unit 3 based on the control of the control unit 1, a transmitter 6 for sending a voice signal to the voice control unit 5, and a voice control unit A receiver 7 for outputting a voice from the control unit 5, an operation unit 8 for inputting an operation command signal to the control unit 1, a display unit 9 for displaying predetermined characters and symbols under the control of the control unit 1, an operation unit 8 and a display unit Lighting units 10 and 11 for illuminating the display unit 9 and the control unit 1
A display unit 14 for displaying predetermined characters, symbols, etc. in accordance with
An operation unit 15 that is equivalent to the operation unit 8 and receives an operation signal from a user, illumination units 16 and 17 that illuminate the display unit 14 and the operation unit 15, and a voltage that detects a driving power supply voltage of the driving power supply unit 2. It has a detection unit 13 and an illumination control unit 12 that adjusts the amount of light emitted from the illumination units 16 and 17 based on the detection output of the voltage detection unit 13.

As described above, the illumination unit 10 and the illumination unit 11 that emit light with a fixed light amount, the voltage detection unit 13 that detects the drive power supply voltage of the drive power supply unit 2, and the illumination control unit 12 based on the detection output of the voltage detection unit 13. It may be configured to have both the illumination units 16 and 17 that are controlled and the amount of emitted light is adjusted.

[0019]

As described above, according to the present invention, it is possible to adjust the amount of light of the illumination unit based on the driving voltage of the driving power supply unit detected by the voltage detecting unit. When the voltage is reduced, the amount of light of the illumination unit is reduced, and there is an effect that a mobile phone that can reduce the consumption of the driving power supply unit by the illumination unit is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a mobile phone according to the present invention.

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

FIG. 3 is a block diagram showing a second embodiment of the mobile phone according to the present invention.

FIG. 4 is a block diagram showing a conventional mobile phone.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 control unit 2 drive power supply unit 3 radio unit 4 antenna 5 voice control unit 6 transmitter 7 receiver 8, 15 operation unit 9, 14 display unit 10, 11, 16, 17 illumination unit 12 illumination control unit 13 voltage detection unit 101 ~ 106 processing steps

Claims (6)

[Claims] 1. A portable telephone comprising a lighting unit for adjusting a light emission amount based on a change in a driving voltage of a driving power supply unit accompanying use of the portable telephone, thereby reducing consumption of the driving power supply unit. 2. An illuminating unit that emits light with a fixed amount of light and an illuminating unit that adjusts the amount of emitted light based on a change in the driving voltage of the driving power supply unit due to use of the mobile phone, thereby reducing the consumption of the driving power supply unit. A mobile phone characterized by: A control unit for controlling the whole of the mobile phone; a driving power supply for driving the mobile phone; a radio unit for transmitting and receiving; an antenna required for transmission and reception of the radio unit; A voice control unit that performs voice signal processing suitable for the control unit under control of the control unit; a transmitter for sending a voice signal to the voice control unit; a receiver that outputs voice from the voice control unit; A display unit that displays predetermined characters, symbols, and the like under control of a control unit; an operation unit that inputs an operation command signal to the control unit; an illumination unit that illuminates the display unit and the operation unit; A mobile phone, comprising: a voltage detection unit that detects a drive voltage of a power supply unit; and an illumination control unit that adjusts a light emission amount of the illumination unit based on a detection output of the voltage detection unit. 4. The portable telephone according to claim 3, wherein said illuminating unit comprises two illuminating units: an illuminating unit for illuminating said display unit and an illuminating unit for illuminating said operation unit. 5. A control unit for controlling the whole mobile phone, a driving power supply unit for driving the mobile phone, a radio unit for transmitting and receiving, an antenna required for transmission and reception of the radio unit, and a radio transmission and reception for the radio unit A voice control unit that performs voice signal processing suitable for the control unit under control of the control unit; a transmitter for sending a voice signal to the voice control unit; a receiver that outputs voice from the voice control unit; A first display unit for displaying predetermined characters, symbols, and the like according to control of the control unit; a first operation unit for inputting an operation command signal to the control unit; A first illumination unit that illuminates the operation unit; a second display unit that displays predetermined characters, symbols, and the like according to the control of the control unit; and a second operation unit that inputs an operation command signal to the control unit. The second display unit and the second operation unit A second illumination unit for illuminating, a voltage detection unit for detecting a drive voltage of the drive power supply unit, and an illumination control unit for adjusting a light emission amount of the second illumination unit based on a detection output of the voltage detection unit. A mobile phone comprising: 6. The second illuminator, wherein the first illuminator comprises two illuminators, an illuminator illuminating the first display unit and an illuminator illuminating the first operation unit. 6. The mobile phone according to claim 5, wherein the unit comprises two illumination units: an illumination unit that illuminates the second display unit, and an illumination unit that illuminates the second operation unit.