JPH099367A - Remote control system with remote control position confirmation function - Google Patents

Abstract

PURPOSE: To easily find out a location of a remote command transmitter by allowing the remote command transmitter to generate a position confirming signal when a power switch of a remote command main body is closed. CONSTITUTION: When a location of a remote command transmitter is missing, a power switch 15 of a television receiver main body is closed, an oscillation frequency divider circuit 4 is operated and an infrared ray is amplitude- modulated by a signal obtained from a ceramic vibrator 3, the modulated signal is converted into an optical signal with an infrared ray emitting diode 7 whose luminescence output is high and outputting a radial light and the signal is sent in air into a medium. A receiver side of the remote command transmitter uses a PIN photodiode 10 with a wide directivity to convert the optical signal into an electric signal, a reception circuit 18 waveform-shaped the signal into a complete digital signal and a decoder 14 decodes the signal. A low frequency oscillator 19 oscillates a low frequency signal and a speaker 20 sounds a sound signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote control system having a remote control position confirmation function for confirming the location of a remote control transmission device.

[0002]

2. Description of the Related Art FIG. 5 is a block diagram of a conventional remote control transmission circuit in a television receiver having a remote control function, for example. In the figure, 1 is a remote control key, 2
Is a key input / output circuit, 3 is a ceramic oscillator, 4 is an oscillation frequency dividing circuit, 5 is a data register, 6 is an output circuit, 7 is an infrared light emitting diode, 8 is a transistor, and 9 is a resistor. Next, FIG. 6 is a block diagram of a conventional remote control receiver circuit. In the figure, 10 is a PIN photodiode,
Reference numeral 11 is an amplifier circuit, 12 is a detection circuit, 13 is a waveform shaping circuit, and 14 is a decoder.

The operation of FIG. 5 will be described. Until any key 1 in the transmitter is pressed, the oscillation frequency divider circuit 4 of IC ₁
Is inactive to reduce battery drain.
When the key 1 is pressed, the oscillation frequency dividing circuit 4 starts operating.
Oscillation uses the ceramic oscillator 3 near 455 kHz,
The frequency is divided by 1/12 to obtain a signal near 38 kHz, and this signal is used as a carrier signal to amplitude-modulate the optical carrier signal based on the data determined for each pressed key 1.
That is, the transmission data emitted from the remote control transmission unit is composed of a code signal corresponding to the key input, and is converted into an optical signal by the infrared light emitting diode 7 having a large light emission output and transmitted to the medium in the air.

Next, the light receiving operation of FIG. 6, that is, the receiving operation will be described. On the receiving side, that is, on the main body side of the remote control system, a PIN photodiode 10 having a wide directivity converts an optical signal into an electric signal, amplifies the signal, and then detects it. After being shaped into a digital signal sequence consisting of one signal sequence, it is read by the decoder 14 of the microcomputer IC, the signal code is decoded, and the predetermined processing is performed.

[0005]

The remote control transmission circuit of FIG. 5 does not have a built-in receiver, and the remote control reception circuit of FIG. Operates the remote control unit (for example,
I wanted to use the remote control to watch TV, but when I didn't know where the remote control was, I had a problem that it was difficult to find a clue to find the remote control.

The present invention has been made in order to solve the above problems, and even if the location where the remote controller was placed is unknown, the remote controller system with a remote controller position confirmation function can be easily found. Aim to get.

[0007]

A remote control system with remote control position confirmation function according to claim 1 of the present invention comprises a remote control transmission device and a remote control main body device operated based on transmission data output from the remote control transmission device. In the remote control system, the remote control main body device has a power supply signal transmitting means for transmitting a predetermined signal when the power switch is turned on, and the remote control transmitting device detects the output signal of the power supply signal transmitting means. And remote control position confirmation signal generating means for generating a position confirmation signal for confirming the position of the remote control transmission device based on the detection result of the power supply signal detection means.

In the remote control system with remote control position confirmation function according to the second aspect of the present invention, the position confirmation signal generated from the remote control position confirmation signal generating means is a voice signal.

According to a third aspect of the present invention, the remote control system with remote control position confirmation function is configured such that the position confirmation signal generated from the remote control position confirmation signal generating means is an optical signal generated by lighting or blinking an LED lamp. .

In the remote controller system with remote controller position confirming function according to claim 4 of the present invention, the position confirming signal generated from the remote controller position confirming signal generating means is composed of both an audio signal and an optical signal.

The remote control system with remote control position confirmation function according to a fifth aspect of the present invention is applied to a remote control system in a television receiver.

[0012]

According to the first to fourth aspects of the present invention, when the power switch of the remote control main unit is turned on, the remote control position confirmation signal generating means of the remote control transmission device generates a position confirmation signal. You can find the location.

According to the fifth aspect of the present invention, when the power switch of the television receiver, which is the main body of the remote controller, is turned on, the remote controller position confirmation signal generating means of the remote controller transmission device generates the position confirmation signal. A television receiver with a remote control function capable of finding the location of the transmitter can be realized.

[0014]

【Example】

Embodiment 1 FIG. An embodiment of the present invention will be described below with reference to the drawings. In the drawings, the same reference numerals represent the same or corresponding parts as the conventional ones. FIG. 1 is a block diagram of the television main body side in a television receiver with a remote control search function, for example. Reference numeral 15 is a power switch of the television main body key, and 16 is a conventional remote control receiving circuit.
Next, FIG. 2 is a block diagram of a remote control transmitter in a television receiver with a remote control search function. Reference numeral 17 is a conventional remote control transmission circuit, 18 is a reception circuit for transmission data transmitted from the television body, 19 is a low frequency oscillator, and 20 is a speaker.

An operation example of the present invention will be described below with reference to FIG. If you don't know where the remote control transmitter was, turn off the power switch 1 on the TV.
When 5 is turned on, the oscillation frequency dividing circuit 4 starts operating.
Oscillation uses the ceramic oscillator 3 near 455 kHz,
The frequency is divided by 1/12 to obtain a signal in the vicinity of 38 kHz, the infrared ray is amplitude-modulated by this, and the infrared light emitting diode 7 which emits a large emission output radially is converted into an optical signal and transmitted in the air to the medium.

Next, FIG. 2 will be described. On the receiving side of the remote control transmitter, the PIN photodiode 10 having a wide directivity converts an optical signal into an electric signal, and the receiving circuit 18 waveform-shapes the signal into a complete digital signal, and then the decoder 14 outputs the signal. Is decoded, a low frequency oscillator 19 oscillates a low frequency, and a speaker 20 generates an audio signal.

Example 2. TV power switch 15
A second embodiment will be described in which the LED lamp built in the remote control transmitter is turned on or blinks when is turned on. FIG. 3 is a block diagram of a remote control transmitter in a television receiver with a remote control search function, for example. The PIN photodiode 10 converts an optical signal into an electric signal, the receiving circuit 18 waveform-shapes the signal into a complete digital signal, the decoder 14 decodes the signal, and the output circuit 6 outputs the LED according to the waveform. The lamp 21 is turned on or blinked.

Example 3. Power switch 1 on the TV
When 5 is turned on, the LED built in the remote control transmitter
Another embodiment will be described in which a lamp is turned on or flashes and a sound is generated from a speaker at the same time.
FIG. 4 is a block diagram of a remote control transmitter in a television receiver with a remote control search function, for example. The PIN photodiode 10 converts an optical signal into an electric signal,
After the signal is shaped into a completely digital signal by the receiving circuit 19, the decoder 14 decodes the signal and turns on and off the LED lamp 21 according to the waveform output from the output circuit 6, and at the same time, a low frequency oscillator. 1
9 is oscillated at a low frequency and the speaker 20 generates an audio signal.

Although the above-described first to third embodiments have been described with respect to the case where the remote control main body device is a television receiver, the remote control main body device of the remote control system with the remote control position confirmation function according to the present invention is a VTR or a personal computer. Alternatively, it goes without saying that it may be a device such as an interactive television.

[0020]

According to the first to fourth aspects of the present invention, when the power switch of the remote control main unit is turned on, the remote control position confirmation signal generating means of the remote control transmission device generates the position confirmation signal, so that the remote control transmission is facilitated. This has the effect of being able to find the location of the device.

According to the fifth aspect of the present invention, when the power switch of the television receiver, which is the main body of the remote controller, is turned on, the remote controller position confirmation signal generating means of the remote control transmission device generates the position confirmation signal. There is an effect that it is possible to realize a television receiver with a remote control function that can find the location of the remote control transmitter.

[Brief description of drawings]

FIG. 1 is a block diagram of a television main body according to an embodiment of the present invention.

FIG. 2 shows a block diagram of a remote control transmitter according to an embodiment of the present invention.

FIG. 3 shows a block diagram of a remote control transmitter according to another embodiment of the present invention.

FIG. 4 shows a block diagram of a remote control transmitter according to another embodiment of the present invention.

FIG. 5 shows a block diagram of a conventional remote control transmitter.

FIG. 6 shows a block diagram of a conventional remote control receiving circuit on the television body side.

[Explanation of symbols]

1 Remote control key 2 Key input / output circuit 3
Ceramic oscillator 4 Oscillation frequency divider circuit 5 Data register 6
Output circuit 7 Infrared light emitting diode 8
Transistor 9 Resistor 10 PIN photodiode 11 Amplifying circuit 12 Detection circuit 13
Waveform shaping circuit 14 Decoder 15 TV body key 16
Remote control reception circuit 17 Remote control transmission circuit 18
Receiver circuit 19 Low frequency oscillator 20 Speaker 21
LED lamp

Claims (5)

[Claims] 1. A remote control system comprising a remote control transmission device and a remote control main body device operated based on transmission data output from the remote control transmission device, wherein the remote control main body device has a predetermined power supply when a power switch is turned on. The remote control transmitting device has a power supply signal transmitting means for transmitting a signal, and the remote control transmitting device includes a power supply signal detecting means for detecting an output signal of the power supply signal transmitting means, and the remote control transmitting means based on a detection result of the power supply signal detecting means. A remote control system with remote control position confirmation function, comprising: a remote control position confirmation signal generating means for generating a position confirmation signal for confirming the location of the device. 2. The remote control system with remote control position confirming function according to claim 1, wherein the position confirming signal generated from the remote controller position confirming signal generating means is a voice signal. 3. The remote controller system with remote controller position confirming function according to claim 1, wherein the position confirming signal generated from the remote controller position confirming signal generating means is an optical signal generated by lighting or blinking an LED lamp. 4. The remote control system with remote control position confirming function according to claim 1, wherein the position confirming signal generated from the remote controller position confirming signal generating means comprises an audio signal and an optical signal. 5. The remote control system with remote control position confirmation function according to claim 1, wherein the remote control main unit is a television receiver.