JPH05291966A - Remote controller with illumination light - Google Patents

Abstract

PURPOSE:To improve the service life of a battery and the arrival range of a control signal by extinguishing, diminishing or blinking a illumination light during transmission of a remote control signal. CONSTITUTION:When a light-on key 1 is depressed in Figure A, a key operation part of an illuminated key 2 is lighted and the light is automatically emitted for preset 8sec. When the illuminated key 2 is operated for the 8sec, the light goes off for 3sec as shown in Figure B. A remote control signal is sent from a transmission section 3 for 3sec in matching with the timing for the light extinguished period of 3sec as shown in Figure C.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control device (hereinafter referred to as "remote control") for remotely controlling a television, a video and the like.

[0002]

2. Description of the Related Art In the prior art, for example, "Monthly Audio Video" (Audio Video) (published by Denpa Shimbun), 199
As shown on page 48 of the March 1 issue, it was usual that the remote control did not have a light for lighting.

[0003]

On the other hand, when a remote control operation key or a light for illuminating the display plate is to be built in, the remote control uses a battery as a power source, so that the light is constantly turned on. In this case, if the remote control signal is transmitted during lighting, the voltage drop caused by the light and the voltage drop caused by the transmission are synergized, and the operating voltage of the remote controller is likely to drop, and the period of use of the battery may be shortened.

There is also a problem that the remote control signal can reach a shorter distance due to a voltage drop caused by lighting of the light.

SUMMARY OF THE INVENTION An object of the present invention is to control the lighting of a light to improve the deterioration of the battery life and to reduce the reaching distance of a remote control signal.

[0006]

In order to achieve the above object, (1) the light for illumination is turned off while the remote control signal is being transmitted (2) the light for illumination is dimmed (3) It is achieved by reducing the load on the power supply by preventing the light from being turned on and the voltage drop due to the remote control signal transmission from being synergized by performing either of the blinking lights for lighting. .

[0007]

The light for illumination performs any one of the operation of turning off, dimming, and blinking while the signal for remote control is being transmitted.

As a result, it is possible to reduce the voltage drop due to the lighting of the light, and it is possible to improve the shortening of the service life of the battery and the shortening of the reach of the remote control signal.

[0009]

Embodiments of the present invention will be described below with reference to FIGS. 1, 2 and 3.

In FIG. 1, 1 is a light-on key, 2 is a light-equipped key, and 3 is a remote control signal transmitter.

When the light-on key 1 is pressed, the key-operated portion of the light-equipped key 2 is illuminated for a certain period of time.

When the lighted key 2 is operated, a remote control signal is transmitted from the remote control signal transmitting section 3. FIG. 2 shows a timing chart of an embodiment of turning on a light of a remote controller with a light embodying the present invention.

FIG. 2A shows that when the light-on key 1 is pressed, the key-operated portion of the light-equipped key 2 is illuminated and is automatically turned on for a preset period of 8 seconds.

When the key with light 2 is operated during the lighted 8 seconds, the light is turned off for 3 seconds as shown in FIG. 2 (B).

As shown in FIG. 2C, the remote control signal is transmitted from the transmitter 3 for 3 seconds in synchronization with the light extinguishing period of 3 seconds.

FIG. 3 shows a circuit diagram of an embodiment of a remote controller with a light embodying the present invention.

In FIG. 3, 7 is a remote control microcomputer,
Reference numeral 8 is a light emitting diode for light, 9 is a battery, 10 is a light emitting diode for remote control signal, 11 is a transistor for driving remote control signal, and 12 is a transistor for driving light emitting diode for light.

In FIG. 3, the remote control microcomputer 7, the light emitting diode 8 for the light, and the light emitting diode 10 for the remote control signal are driven by the voltage generated by the battery 9.

For this reason, the light-emitting diode 8 for light is turned on, and the light-emitting diode 1 for remote control signal is kept on.
When 0 is driven, the voltage drop caused by the light and the voltage drop caused by the transmission are synergized, and the operating voltage of the microcomputer 7 is easily lowered, and the period of use of the battery is shortened. Further, the voltage applied to the remote control signal light-emitting diode 10 is reduced due to the voltage drop caused by lighting of the light, which reduces the reaching distance of the remote control signal.

In order to prevent this, the remote control microcomputer 7 takes timing so that the lighting of the light and the transmission of the remote control signal are not performed simultaneously.

The operator of the remote control is in a period in which the position of the key with light 2 is determined while the signal for remote control is being transmitted, and the key 2 with light is being pressed, so even if the light is turned off, it is practical. No problem.

2 using two 1.5 volt batteries
By implementing the present invention in a remote controller with a light that illuminates 0 keys with a light each by one light emitting diode, even if the battery consumption reduction due to turning off the light during transmission is subtracted, the battery life is 12%. , The reach of remote control signal can be improved by 6%.

[0023]

As described above, since the light is turned off during the period when the remote control signal is transmitted, it is possible to improve the reduction of the battery use period and the reduction of the remote control signal reach.

[Brief description of drawings]

FIG. 1 is an external view showing an embodiment of a remote controller with a light embodying the present invention.

FIG. 2 shows a timing chart of an embodiment of a lighting timing of a light of a remote controller with a light embodying the present invention.

FIG. 3 is a circuit diagram showing an embodiment of a remote controller with a light embodying the present invention.

[Explanation of symbols]

1 ... light on key 2 ... key with light 3 ... remote control signal transmission part 4 ... light lighting timing 5 ... light lighting timing during transmission 6 ... remote control signal transmission timing 7 ... remote control microcomputer 8 ... Light-emitting diode for light 9 ... Battery 10 ... Light-emitting diode for remote control signal 11 ... Transistor for driving remote control signal 12 ... Transistor for driving light-emitting diode for light

Claims (2)

[Claims] 1. A remote control device for remotely operating a television, a video tape recorder or the like using infrared rays or the like, which has a built-in light for illuminating operation keys and a display board.
During the period of transmitting a remote control signal such as infrared rays, either (1) turn off the lighting light (2) turn off the lighting light (3) blink the lighting light. A remote control device with a light. 2. A remote control signal transmitter, an operation key, and a light for illuminating the operation key or the display panel.
A remote control device with a light, comprising: means for turning off, dimming, or blinking the light while the remote control signal transmission unit is transmitting a signal.