JP2580957B2 - Mobile phone with lighting function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable telephone, and more particularly, to a portable telephone with an illumination function for illuminating a display and an operation unit thereof.

[0002]

2. Description of the Related Art In a conventional portable telephone, a non-light emitting type liquid crystal display device is widely used as a display device. When a mobile phone equipped with such a non-light emitting type liquid crystal display element is operated in a dark place, the liquid crystal display element does not emit light, so that the liquid crystal display cannot be visually confirmed. Therefore,
The above problem is solved by providing an illumination device for illuminating the operation unit and the display unit.

In some conventional lighting methods, lighting is turned on and off in response to a key input from an operation unit.

Further, as disclosed in Japanese Patent Publication No. 3-29328, there is disclosed an apparatus in which the brightness is determined from the brightness of the surroundings and the light is turned on and off.

[0005]

Since no operation is performed on the operation unit during a call, lighting of the display unit and the operation unit during the call is often unnecessary. As a lighting method for a conventional mobile phone with a lighting function, a method is used in which lighting is turned on and off in accordance with a key input at an operation unit or ambient brightness. Therefore, there is a state in which the lighting is on for a certain period of time even after entering the talking state.
For this reason, there is a problem that a situation in which unnecessary illumination is performed occurs, and wasteful power is consumed.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems and adjusts the amount of illumination by controlling the lighting on and off according to the line connection state, measuring the luminous intensity of the surroundings in accordance with the incoming and outgoing call operation and key input. It is an object of the present invention to provide a lighting-equipped mobile phone having a function of performing lighting.

[0007]

According to the present invention, a display unit, an operation unit, illumination means for illuminating them, a light receiving circuit for measuring the luminous intensity of the display unit and the operation unit, and a light receiving circuit Control means for receiving luminous intensity information from a circuit, controlling the illuminating means in accordance with the luminous intensity information, and turning on and off the illumination, wherein the control means is capable of making and receiving calls, and the line connection state of a call. Controlling the illuminating means in response to a key input from the operation unit, turning on and off the illumination, and when receiving an illumination lighting request, the control means drives the illuminating means to turn on the illumination. While, the light intensity around the display unit and the operation unit is measured by driving the light receiving circuit, the amount of illumination required for illumination of the display unit and the operation unit is calculated from the luminous intensity, The lighting means is adjusted so that the amount of illumination is Mobile phone with a lighting function, characterized in that the control is obtained.

Further, according to the present invention, when an outgoing / incoming call operation is performed, the control means operates the light receiving circuit, determines necessity of illumination based on luminous intensity information from the light receiving circuit, and determines whether the illumination is required. If necessary, a lighting-on request is sent to the lighting means, and in the case of a call state, it is determined whether or not the lighting is turned on. If the lighting is turned on, a lighting-off request is sent to the lighting means. Thus, a mobile phone with a lighting function is obtained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a block diagram showing the configuration of a mobile phone with a lighting function according to the present invention.

A portable telephone with a lighting function according to the present invention includes a transmitter / receiver 1, measures a peripheral luminous intensity, and outputs the luminous intensity information, and a lighting circuit 3 according to the luminous intensity information.
, An operation unit 4 for inputting a signal to the control unit 2, and an illumination circuit 3 for illuminating the display unit 5 and the operation unit 4
It is composed of

Next, the operation of the illumination adjustment will be described with reference to FIG. FIG. 2 is a flowchart showing a flow of an operation of lighting adjustment by the mobile phone with a lighting function according to the present invention.

When a request for lighting is generated, the control unit 2
In response to the illumination lighting request, the illumination circuit 3 is driven to turn on the illumination (step 11). Next, the light receiving circuit 6 measures the luminous intensity around the display unit 5 and the operation unit 4 (Step 1).
2). Next, the control unit 2 calculates an illumination amount required for illumination of the display unit 5 and the operation unit 4 from the luminous intensity measured by the light receiving circuit 6 (step 13). Next, the control unit 2 controls the illumination circuit 3 so that the illumination amount is obtained (step 1).
4). Next, the display unit 5 and the operation unit 4 are controlled by the control unit 2.
It is determined whether or not it is necessary to turn off the lighting (step 15). If there is no request to turn off the lighting, the process returns to step 12, and if there is a request to turn off the lighting, the light is turned off (step 1).
6), end the process.

Next, the operation of turning on and off the illumination will be described with reference to FIG. FIG. 3 is a flowchart showing the flow of the operation of turning on and off the lighting in the present invention.

In step 20, various decisions are made in processes other than the illumination process. For example, various determinations and the like in controlling transmission and reception. Here, the key processing (Step 21), the outgoing / incoming call (Step 31), and the telephone call (Step 41) are performed in parallel on the software.

First, the operation of turning on and off the illumination when key processing is performed on the operation unit 4 will be described. Operation unit 4
It is determined whether or not a key input has been performed (step 22). If a key input has been performed, it is further determined whether or not the illumination is on (step 23). If so, the lighting processing corresponding to the key processing ends. If the illumination is not turned on, the light around the display unit 5 and the operation unit 4 is detected by the light receiving circuit 6, and the luminous intensity is measured (step 24). At this time, it is determined whether it is necessary to turn on the illumination around the display unit 5 and the operation unit 4 (step 25). Here, if there is no need to turn on the illumination (if there is no illumination lighting request), the illumination processing corresponding to the key processing ends there. If there is a need to turn on the illumination (if there is an illumination lighting request), the illumination is turned on (step 26), and the illumination processing according to the key processing ends. or,
If no key input is performed on the operation unit 4 (step 22), it is determined whether or not the illumination is on (step 27). If the illumination is on, after a lapse of a predetermined time (step 28). The illumination is turned off (step 29), and the illumination processing according to the key processing ends. If it is determined in step 27 that the lighting is not turned on, the lighting processing corresponding to the key processing ends there.

Next, a description will be given of the operation of turning on and off the illumination when a calling / calling operation occurs. When an incoming / outgoing call operation occurs (step 31), the light around the display unit 5 and the operation unit 4 is detected by the light receiving circuit 6, and the light intensity is measured (step 32). At this time, the display unit 5 and the operation unit 4
It is determined whether or not it is necessary to turn on the lighting around (step 33). Here, if there is no need to turn on the light (if there is no request to turn on the light), the outgoing / incoming call processing (step 3)
5) is performed, and the lighting process in the case where the calling / incoming / outgoing call operation occurs is ended. If there is a need to turn on the illumination (if there is a request to turn on the illumination), the illumination is turned on (step 34), and the outgoing / incoming call processing (step 35) is performed.

Next, the operation of turning on and off the lighting during a call will be described. When a call operation occurs (step 4
1) It is determined whether or not the light is turned off (step 4)
2) If the light is off, call processing (step 4)
4) is performed, and the lighting process during the call ends. If the lighting is on, the lighting is turned off (step 43),
Call processing (step 44) is performed, and the lighting processing during the call ends.

[0019]

According to the present invention, the function of controlling the turning on and off of the lighting in accordance with the line connection state and the incoming / outgoing call operation is provided.
When an incoming / outgoing call operation occurs, the light is turned on or off according to the ambient light intensity of the display unit and the operation unit, and the amount of illumination of the display unit and the operation unit is adjusted. Accordingly, unnecessary lighting is not performed, and unnecessary power consumption in the lighting circuit can be eliminated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a mobile phone with a lighting function according to the present invention.

FIG. 2 is a flowchart showing a flow of an operation of lighting adjustment by the mobile phone with a lighting function according to the present invention.

FIG. 3 is a flowchart showing a flow of an operation of turning on and off the lighting in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transceiver 2 Control part 3 Lighting circuit 4 Operation part 5 Display part 6 Light receiving circuit

Claims (2)

(57) [Claims] A display unit, an operation unit, an illuminating unit for illuminating the display unit, an illuminating unit, a light receiving circuit for measuring luminous intensity around the display unit and the operating unit, and receiving luminous intensity information from the light receiving circuit;
Control means for controlling the lighting means in accordance with the luminous intensity information to turn on / off a light, wherein the control means comprises a connection state for incoming and outgoing calls, a call, and a key input from the operation unit. Control the lighting means in accordance with, lighting of the lighting, turn off, when receiving a lighting lighting request, the control means drives the lighting means to light the lighting, and the light receiving circuit When driven, the luminous intensity around the display unit and the operation unit is measured, and the amount of illumination required for illumination of the display unit and the operation unit is calculated from the luminous intensity. A mobile phone with a lighting function, wherein the means is controlled. 2. The mobile phone with lighting function according to claim 1, wherein the control means performs a call originating / receiving operation.
By operating the light receiving circuit, the necessity of illumination is determined based on the luminous intensity information from the light receiving circuit, and if illumination is required, an illumination lighting request is sent to the illumination means. A mobile phone with a lighting function, characterized in that it determines whether or not the lighting is on, and if the lighting is on, sends a lighting off request to the lighting means.