JPH08329015A - Illuminated portable electronic device - Google Patents

Abstract

(57) [Summary] [Purpose] To improve operability and save power in dark places. [Structure] Illumination light 15 for illuminating an operation unit 13 and a display unit 14 of the device, a vibration sensor 11 for detecting that the device is picked up by hand, and a muscle vibration of an operator's hand among signals from the vibration sensor The filter 12 for extracting only the light and the microcomputer 17 for turning on the illumination light based on the signal from the filter 12 are provided, and the illumination light 15 is automatically turned on only when the operator picks up the device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electronic device equipped with an illumination light for illuminating an operation section or a display section in order to improve operability in a dark place.

[0002]

2. Description of the Related Art Conventionally, in a portable electronic device such as a wireless remote controller or a mobile phone which is used by holding it in a hand, an illumination light for illuminating an operation part or a display part is provided in order to improve operability in a dark place. I have something to prepare. When using the illumination light, the device was switched on and turned on.

[0003]

However, in the above-mentioned conventional portable electronic device with illumination, since the power source is limited to the battery, there is a problem that a lot of current is consumed by the illumination light. Further, manually turning the illumination light on and off has a problem that the operation is troublesome and the problem of forgetting to turn it off occurs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a portable electronic device with lighting which can improve operability in a dark place and save power. To do.

[0005]

In order to achieve the above object, the present invention detects that an operator has picked up the device and turns on the illumination light according to the signal. .

[0006]

According to the present invention, therefore, it is detected that the device is picked up and the illumination light is turned on by the signal, so that the operator can pick up the device in order to use it. Since the light turns on and turns off when the device is released, it is possible to improve operability in a dark place and save power.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment in which the present invention is applied to a wireless remote controller. In FIG. 1, reference numeral 11 is a vibration sensor for detecting minute vibrations, and
Reference numeral 2 is a filter that extracts only the muscle vibration of the operator's hand from the signal from the vibration sensor 11. Reference numeral 13 denotes an operation unit having a key block operated by an operator, 14 a display unit for displaying operational data, 15 an illumination light for illuminating the operation unit 13 and the display unit 14, and 16 a wireless remote control signal. Transmitter to send,
Reference numeral 17 denotes a microcomputer that is a control unit that determines the signal from the filter 12 and controls the entire apparatus. Reference numeral 18 is a power source of the apparatus.

Next, the operation of the above embodiment will be described.
The operator sets the automatic lighting mode by a key input from the operation unit 13 before it gets dark. This is to prevent the automatic lighting mode from operating during the daytime. In the automatic lighting mode, when the operator picks up the device and tries to start the operation, the vibration sensor 1 generates a minute vibration at that time.
1 detects. The filter 12 detects that the signal from the vibration sensor 11 is the vibration caused by the start of the operation of the operator by extracting only the muscle vibration component of the hand and sends it to the microcomputer 17. When detecting the signal from the filter 12, the microcomputer 17 turns on the illumination light 15. Since the vibration sensor 11 and the filter 12 detect the muscle vibration of the operator while the operator holds the device in his hand, the illumination light 15 continues to be lit during that time, and the operator is illuminated by the display unit 14. A necessary operation can be performed with the operation unit 13 while watching. And
When the operator removes the device from his hand and puts it in place,
Since the muscle vibration is no longer detected, the microcomputer 17 turns off the illumination light 15.

As described above, according to the above-described embodiment, when the operator picks up the device and starts the operation, the illumination light 15 is automatically turned on, and automatically when the operation is stopped and the device is released. Since the light is turned off, it is possible to improve operability in a dark place and save power. Further, it is possible to solve the trouble of turning the illumination light on and off and forgetting to turn it off.

In the above embodiment, the fact that the operator picks up the device is detected by using the vibration sensor 11 and the filter 12, but a temperature sensor for detecting the temperature of the operator's hand is used instead. May be. Further, instead of using the filter 12, a vibration sensor and a temperature sensor may be used to determine that the operator has picked up the device when there is vibration and the temperature becomes high. Good.

[0011]

According to the present invention, as is apparent from the above embodiment, the illumination light is turned on only when the operator picks up the device, so that the operability and the power saving in the dark place can be realized. Since the illumination light is turned off when the device is released from the hand, it is possible to prevent the trouble of turning off the light and forgetting to turn it off.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of a wireless remote controller as a portable electronic device according to an embodiment of the present invention.

[Explanation of symbols]

 11 Vibration Sensor 12 Filter 13 Operation Section 14 Display Section 15 Illumination Light 16 Transmitter 17 Microcomputer 18 Power Supply

Claims (2)

[Claims] 1. An illumination light that illuminates an operation unit and a display unit of the device, a sensor unit that detects that the device is picked up, and a control unit that lights the illumination light based on a signal from the sensor unit. Illuminated portable electronic device with. 2. A vibration sensor for detecting a minute vibration when the device is picked up, and a muscle of an operator's hand among the signals from the vibration sensor. 2. The illuminated portable electronic device according to claim 1, comprising a filter for extracting only vibrations.