JP2000115996A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide electronic equipment which allows unnecessary consumption of electrical energy to be reduced. SOLUTION: When a main power switch SW1 is turned on, power is supplied from a main power circuit 20 to a microcomputer 16 and a switch circuit 24. At this time switching of channels and adjustment of volume can be performed by operating a remote control transmitter 14 and the operation buttons on an operation panel 18. The microcomputer 16 is provided with a timer 16a, which measures a time for which neither the remote control transmitter 16a nor the operation panel 18 is operated. When the timer value exceeds a time preset on the microcomputer 16, the switch circuit 24 is turned off according to an instruction from the microcomputer 16. That is, power supply is turned off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device, and more particularly, to an electronic device which can be operated by, for example, a remote control transmitter and operation buttons provided on a device main body.

[0002]

2. Description of the Related Art In this type of conventional electronic equipment, a power on / off function such as a power off timer and use time setting is generally used.

[0003]

However, in this prior art, when the power-off timer and the use time are not set, the power of the main body of the device is always turned on. There is a problem that energy is consumed. Therefore, a main object of the present invention is to provide an electronic device capable of suppressing wasteful consumption of electric energy.

[0004]

SUMMARY OF THE INVENTION According to the present invention, in an electronic device which can be operated by a first operation button provided on a remote control transmitter, a counting means for counting a time during which the first operation button is not operated, and a counter. An electronic device, comprising: a power-off means for turning off the power of the device when the count value of the device is equal to or longer than a predetermined time.

[0005]

When the main power of the electronic device is turned on, the electronic device can be operated with the first operation button provided on the remote control transmitter.
When the first operation button is not operated, the time during which the first operation button is not operated is counted by the counting means. When the count value of the counting means exceeds a predetermined time, the power of the device is turned off by the power-off means. Further, the device main body is provided with a second operation button, and the counting means counts a time during which neither the first operation button nor the second operation button is operated.

[0006]

According to the present invention, when no operation is performed for a predetermined time or more, the power is turned off, so that useless consumption of electric energy can be suppressed. The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

[0007]

Referring to FIG. 1, a television receiver 10 as an electronic apparatus according to this embodiment includes a remote control receiving circuit 12, which receives a remote control signal, for example, an infrared signal from a remote control transmitter 14. , Button input data to the microcomputer 16. That is, the power button 14 as the first operation button is
a, channel switching buttons 14b and 14c, and volume adjustment buttons 14d and 14e are provided. Therefore, instructions such as power on / off, channel switching, and volume adjustment are given to the microcomputer 16 from the remote control transmitter 14. The microcomputer 16 controls power on / off, channel switching, and volume adjustment based on these button input data.

Further, the television receiver 10 is provided with an operation panel 18, and the operation panel 18 is provided with channel switching buttons 18a and 18b as second operation buttons and volume adjustment buttons 18c and 18d. Therefore, when these operation buttons are operated, the input data of those buttons are given to the microcomputer 16 and the microcomputer 1
Reference numeral 6 controls channel switching and volume adjustment based on the button input data.

The television receiver 10 further includes a power supply circuit 20, to which a plug 22 is connected via a main power switch SW1. Therefore, when the plug 22 is inserted into an outlet (not shown) and the main power switch SW1 is turned on, the power supply circuit 2
0 is supplied with commercial power. The power supply circuit 20 steps down and rectifies the commercial power and supplies power to the microcomputer 16 and the switch circuit 24. That is, the main power switch SW
When the switch 1 is on, the microcomputer 16 is always supplied with power, and the power supply circuit 20 supplies power (not shown) to a picture tube, a tuner, a video signal processing circuit, an audio signal processing circuit, etc. Is given. Also,
The switch circuit 24 is switched according to an instruction from the microcomputer 16. For example, when a power on / off instruction is given from the remote control transmitter 14, the microcomputer 16 turns on / off the switch circuit 24.

For example, when the main power switch SW1 is turned on, power is supplied to the microcomputer 16. Here, when an operation button on the remote control transmitter 14 or the operation panel 18 is operated, the power of the television receiver 10 is turned on / off.
Off, channel switching, volume adjustment, and the like are performed. The microcomputer 16 has a timer 16 as a counting means.
a is provided, and the timer 16a measures the time during which neither the remote control transmitter 14 nor the operation panel 18 is operated. A predetermined time for turning off the power, that is, for turning off the switch circuit 24, is set in the microcomputer 16 in advance.
Turns off the switch circuit 24. In this embodiment, the timer 16a measures the time during which neither the remote control transmitter 14 nor the operation panel 18 is operated.
The time during which only the remote control transmitter 14 is not operated may be measured.

The above operation is performed by the microcomputer 16 in FIG.
The processing is performed according to the flowchart shown in FIG. When the main power switch SW1 of the television receiver 10 is turned on, the process starts, and the timer 16a is reset and started in step S1. Subsequently, in step S3, the remote control transmitter 14
Then, it is determined whether there is button input data from the operation panel 18. If "YES" here, the process returns to the step S1, but if "NO", it is determined in a step S5 whether or not the timer value is equal to or longer than a predetermined time. here,
If “NO”, the process returns to step S3, but “YES”
If so, the power is turned off in step S7, that is, the switch circuit 24 is turned off, and the process ends. In step S3, it is determined whether there is button input data from the remote control transmitter 14 and the operation panel 18. However, it is determined whether there is only button input data from the remote control transmitter 14. Is also good.

According to this embodiment, when neither the remote control transmitter 14 nor the operation panel 18 is operated for a predetermined time or more, the power is turned off, so that useless electric energy is not consumed. Further, since the power is automatically turned off, it is not necessary to set a power-off timer or the like every time the electronic device is used.

In this embodiment, a television receiver is shown as an electronic device. However, audio devices such as a radio cassette tape recorder and a mini component player, a video cassette tape recorder, a laser disk player and a D
It goes without saying that the present invention can be applied to audiovisual equipment such as a VD player.

[Brief description of the drawings]

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

FIG. 2 is a flowchart showing a part of the processing of the microcomputer shown in FIG. 1 embodiment;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Television receiver 14 ... Remote control transmitter 16 ... Microcomputer 18 ... Operation panel 20 ... Power supply circuit 24 ... Switch circuit

Claims (2)

[Claims] An electronic device operable with a first operation button provided on a remote control transmitter, a counting means for counting a time during which the first operation button is not operated, and a count value of the counting means being a predetermined value. An electronic device comprising a power-off means for turning off the power of the device when the time is longer than a predetermined time. 2. The apparatus according to claim 1, further comprising a second operation button provided on the device main body, wherein the counting means counts a time during which neither the first operation button nor the second operation button is operated. Electronics.