JPH07131511A - Telephone set - Google Patents

Abstract

PURPOSE:To reduce the power consumption of a telephone set by illuminating an operation button and a display device for a prescribed time only when the surrounding luminous intensity is less than the brightness that affects the operation of the telephone set when the operation button is pushed. CONSTITUTION:A portable telephone set or a radio communication equipment is provided with a surrounding luminous intensity measuring means 6. The means 6 detects the surrounding luminous intensity when an operation button 1 is operated and sends this measured intensity to a control means 5. The means 5 actuates an operation button illuminator 2 and a display illuminator 4 for a prescribed time when the luminous intensity is less than the reference brightness that affects the operation of the telephone set or the communication equipment. Meanwhile both illuminators 2 and 4 are not actuated as long as the brightness is satisfactory for operation of the telephone set or the communication equipment. Therefore, the power consumption of a build-in buttery is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a configuration and control for reducing current consumption of a mobile phone and a wireless communication device.

[0002]

2. Description of the Related Art A conventional mobile phone is shown in FIG.
Equipped with operation buttons, button illumination, display device for displaying telephone numbers, etc., display illumination, and control means. To improve operability, after pressing the operation button, the button illumination and display illumination are changed. It was controlled to turn on for a certain period of time.

[0003]

In the prior art, the lighting time of the button lighting and the display lighting was limited to reduce the current required for lighting. However, since the button illumination and the display illumination are always turned on after pressing the operation button, the illumination current is consumed even when the surroundings are bright and these illuminations are not needed.

An object of the present invention is to control the button illumination and the display illumination to be turned on for a certain period of time only when the ambient illuminance of the telephone when the operation button is pressed interferes with the operation of the telephone, thus reducing current consumption. To do.

[0005]

The above-mentioned object is to provide a mobile phone with ambient illuminance measuring means for detecting the ambient illuminance of the telephone, and to detect the ambient illuminance of the telephone when the operation button is pressed by the ambient illuminance measuring means. This is achieved by controlling the button illumination and the display illumination to be turned on for a certain period of time only when the detected value is below the brightness that hinders the operation of the telephone.

[0006]

[Function] The mobile phone is provided with the ambient illuminance measuring means for detecting the ambient illuminance of the telephone, and the illumination is kept constant only when the ambient illuminance of the telephone when the operation button is pressed is equal to or lower than the brightness that hinders the operation of the telephone. By controlling the lighting for a certain period of time, the current consumption can be reduced.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention, in which a conventional portable telephone is provided with an ambient illuminance measuring means 6 for detecting ambient brightness. In FIG. 1, the control means 5 detects the ambient illuminance of the telephone when the operation button 1 is pressed by the ambient illuminance measuring means 6, and the detected value is less than or equal to the reference value of the brightness that causes an obstacle to the operation of the telephone. In this case, the button illumination 2 and the display illumination 4 are controlled to be turned on for a certain period of time, and when the reference value is exceeded, the button illumination 2 and the display illumination 4 are turned off. According to the present embodiment, the current consumption can be reduced by controlling the lighting so that the lighting is turned on for a certain time only when necessary according to the ambient illuminance of the telephone when the operation button is pressed.

FIG. 2 is a block diagram showing a second embodiment of the present invention. In this embodiment, the LED display device 7 is used as the display device 3 in the first embodiment, and the display illumination 4 is omitted. In FIG. 2, the control means 5
Detects the ambient illuminance of the telephone when the operation button 1 is pressed by the ambient illuminance measuring means 6, and when the detected value is less than or equal to the reference value of the brightness that causes an obstacle to the operation of the telephone, the button illumination 2 Is turned on for a certain period of time, and when the reference value is exceeded, the button illumination 2 and the display illumination 4 are turned off. According to the present embodiment, the current consumption can be reduced by controlling the lighting so that the lighting is turned on for a certain time only when necessary according to the ambient illuminance of the telephone when the operation button is pressed.

[0010]

According to the present invention, the portable telephone is provided with the ambient illuminance measuring means for detecting the ambient illuminance of the telephone, and the ambient illuminance of the telephone when the operation button is pressed is equal to or lower than the brightness which hinders the operation of the telephone. By controlling the illumination to be turned on for a certain time only in the case of, it is possible to reduce the current consumed when the surroundings are bright and the illumination is not required, and the current consumption can be reduced.

[Brief description of drawings]

FIG. 1 is a block diagram showing a first embodiment of the present invention.

FIG. 2 is a block diagram showing a second embodiment of the present invention.

FIG. 3 is a block diagram showing a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Operation button, 2 ... Button illumination, 3 ... Display device, 4 ... Display illumination, 5 ... Control means, 6 ... Ambient illuminance measuring means, 7 ... LED display device.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location H04M 1/00 N

Claims (6)

[Claims] 1. A telephone having at least an operation button (1), a button illumination (2), a display device (3), a display illumination (4), a control means (5) and an ambient illuminance measuring means (6). In the above, the control means (5) controls at least the lighting of the button illumination (2) and the display illumination (4) and the display device (3), and the operation button (1). The ambient illuminance of the telephone when the button is pressed is detected by the ambient illuminance measuring means (6), and when the detected value (a) is below the brightness that hinders the operation of the telephone, the button illumination (2 ) And the display illumination (4) are turned on for a certain period of time, and in other cases, the button illumination (2) and the display illumination (4) are turned off. 2. A telephone having at least an operation button (1), a button illumination (2), an LED display device (7), a control means (5) and an ambient illuminance measuring means (6), wherein the control means ( 5) at least controls the lighting of the button illumination (2) and the LED display device (7), and determines the ambient illuminance of the telephone when the operation button (1) is pressed. When the detection value (a) is detected by the measuring means (6) and the detected value (a) is lower than the brightness which hinders the operation of the telephone, the button illumination (2) is controlled to be turned on for a certain period of time, and otherwise. Controls the light (2) for the button to be turned off. 3. The telephone according to claim 1, wherein when the detected value (a) is less than or equal to the brightness that hinders the button operation, the button illumination (2) is controlled to be turned on for a certain period of time. A telephone which controls to turn on the display illumination (4) for a certain period of time when the detected value (a) is equal to or lower than the brightness that hinders reading of the display. 4. A radio comprising at least an operation button (1), a button illumination (2), a display device (3), a display illumination (4), a control means (5) and an ambient illuminance measuring means (6). A wireless communication device, wherein the communication device performs the same control as in claim 1. 5. A wireless communication device comprising at least an operation button (1), a button illumination (2), an LED display device (7), a control means (5) and an ambient illuminance measuring means (6). A wireless communication device performing the same control as in item 2. 6. A radio comprising at least an operation button (1), a button illumination (2), a display device (3), a display illumination (4), a control means (5) and an ambient illuminance measuring means (6). A wireless communication device, wherein the communication device performs the same control as in claim 3.