JPH044698A - Remote control system - Google Patents

Abstract

PURPOSE:To allow a signal source equipment to be operated even from a location to which a remote control signal is not directly arrived by providing a 1st repeater receiving a remote control signal from a wireless remote control receiver, converting the remote control signal information into a radio wave and sending the radio wave and providing a 2nd repeater receiving a remote control signal from the 1st repeater, converting the remote control signal information into other remote control signal and sending the signal to the signal source equipment. CONSTITUTION:A 1st repeater 10 and a wireless remote control transmitter 20 are arranged in a room A and a 2nd repeater 30 and a signal source equipment 40 are arranged in a room B. The 1st repeater 10 receives an infrared ray oscillated from the remote control transmitter 20, converts the received remote control information to a radio wave and it is relayed to a 2nd repeater 30 via an antenna 10a. The 2nd repeater 30 receives the remote control information sent from the 1st repeater 10 via an antenna 30a and converted into an infrared ray and it is relayed to the signal source equipment 40. The signal equipment 40 is provided with plural source signals and a remote control function selects source signals.

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a remote control system for audio equipment, and in particular to a wireless remote control transmitter that uses infrared rays to control equipment installed in a place with no visibility or in a separate room. It's about the system you're trying to control.

(Prior Art) It is common practice to control audio equipment and the like with a wireless remote control transmitter.

However, current wireless remote control transmitters are difficult to use in places where there is no line of sight, making it difficult to control, for example, audio equipment in an adjacent room. On the other hand, it is difficult to bring such equipment into another room, such as in a bathroom, due to humidity, space, etc.

Therefore, a proposal was made in JP-A-62-2 to install a repeater, receive signals using infrared rays, etc., convert them into electrical signals, and remotely control devices in other locations via cables.
No. 33994 and Japanese Unexamined Patent Publication No. 62-233995.

(Problem to be Solved by the Invention) However, according to such a means, wiring is troublesome and construction work for installing the cable is required. Moreover, once installed, it becomes difficult to move it from one place to another.

The present invention was made to solve these problems, and its purpose is to enable audio equipment installed in places with no visibility to be controlled with a wireless remote control transmitter without using cables. Moreover, it provides a remote control system that allows you to enjoy music etc. as if you were at the location.

(Means for Solving the Problems) In order to solve the above-mentioned i a first repeater that is installed corresponding to the signal source device and receives a remote control signal from the wireless remote control transmitter, converts the remote control signal information into radio waves, and transmits the radio waves;
a second repeater that receives the signal from the first repeater, converts it into remote control signal information, and transmits it to the signal source device; and a third repeater that converts the audio signal of the signal source device into radio waves and transmits the same. a terminal device that converts the plurality of source signals into sound; and a terminal device that receives the signal from the third repeater and converts it into an audio signal;
and a fourth repeater that outputs to the terminal device.

(Function) When the user of the terminal device performs a key operation to play a compact disc (hereinafter referred to as CD) using the remote control transmitter, the remote control signal oscillated from the remote control transmitter is relayed by the first repeater. is converted into radio waves and transmitted. This signal is received by the second repeater, converted back into a remote control signal, and transmitted. This signal is further sent to the signal source device, and a signal determination circuit detects that the CD is selected and is electrically connected to the CD. After the CD signal is amplified, it is output to the third intermediate amplifier, where it is converted back into radio waves and transmitted. This signal is received by the fourth repeater, converted into an audio signal, and then output to the terminal device.

A terminal device to which an audio signal is input manually amplifies this signal to a predetermined volume and then reproduces it as sound through a speaker or the like.

(Embodiments) Preferred embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a block diagram of a first embodiment of a remote control system according to the present invention.

The figure shows a system in which a first repeater 10 and a wireless remote control transmitter (hereinafter referred to as remote control transmitter) 20 are arranged in a room A, and a second repeater 30 and a signal source device 40 are arranged in a room B.

The first repeater 10 receives a remote control signal using infrared rays emitted from the remote control transmitter 20, converts the received remote control information into radio waves, and relays the radio waves to the second repeater 30 via the antenna 10a. It is.

The second repeater 30 receives the remote control information transmitted from the first repeater 10 via the antenna 30a, converts it into infrared light, and relays it to the signal source device 40. Signal source 4
0 is equipped with a plurality of source signals, and the source signal can be selected using a remote control function.

FIG. 2 is a block diagram of the second embodiment.

The third repeater 50 converts the source signal input from the signal source device 40 into radio waves and relays the radio waves to the fourth repeater 60 via the antenna 50a.

The fourth repeater 60 receives the source signal transmitted from the third repeater 50 via the antenna 60a, converts it into an audio signal, and relays it to the terminal device 70.

The terminal device 70 converts an audio signal into sound.

First, a first embodiment according to claim 1 will be described.

FIG. 3 is a schematic block diagram of the remote control transmitter and the first repeater, and FIG. 4 is a schematic block diagram of the second repeater and the signal source device.

In FIG. 3, the remote control transmitter 20 is a keyboard 21
, a display section 22, a control section 23, and a transmission section 24. The control section 23 is composed of, for example, a commercially available microcomputer for infrared remote control control, and displays the type and operating status of the equipment currently being used on a display section composed of a liquid crystal display, etc., and displays information necessary for remote control operation. Displays guidance on how to operate. Further, the control unit 23 generates a remote control signal that combines a custom code that specifies the device to be controlled and a data code that specifies the desired operation in response to the key input from the keyboard 21, and generates a remote control signal using an infrared ray provided in the transmitter 24. The configuration is such that a remote control signal is transmitted by driving a light emitting diode.

The first repeater 10 includes a receiving section 11 that receives an infrared signal transmitted from a remote control transmitter 20 and performs photoelectric exchange, a signal judgment circuit section 12 connected to the output side of the receiving section, and an output of the signal judgment circuit section 12. A relay control unit 13 that sends a remote control signal to the second repeater 30 via the antenna 10a based on the signal information. A power supply control unit 14 that generates a signal for controlling power on/off of the signal source device 40 and the third repeater 50, and a volume control unit 15 that outputs a volume adjustment signal to the signal source device 40.
, relay control section 13, power supply control section 14, and volume control section 1
5, and a transmitter 17 that transmits the modulated signal via the antenna 10a.

In FIG. 4, the second repeater 30 includes a receiving section 31 that receives the remote control signal transmitted from the first repeater 10 via the antenna 30a, and a demodulating section 32 that demodulates the received signal.
, and a transmitter 33 that converts the demodulated signal into an infrared signal and transmits it.

The signal source device 40 includes a receiving section 41 that receives the remote control signal transmitted from the second repeater 30, and examines the content of the remote control signal to determine which source signal source to electrically connect to, or the signal source device 40. A signal determination circuit section 42 that determines whether to turn on or off the power source 48, a tuner 43a that is a human power source, a CD player 43b, and a cassette deck 4.
3c, an external input 436, a switch 45 that connects any of the human power sources to the amplification section 44, an amplification section 44 that amplifies the signal of the input source, a speaker system 44a that converts the signal of the amplification section 44 into sound; a power supply control 46 that outputs a control signal for the IIT source according to a determination signal from the signal determination circuit section 42; a power supply interface for turning the power on and off by controlling a switching element such as a triac using a photocoupler or the like; It is composed of a circuit section 47, a power supply 48, a volume interface circuit 49 that converts the determination signal of the signal determination circuit section 42 into a signal for operating an electronic volume control circuit 48, and an electronic volume control circuit 48 that controls the amplification of the amplifier section 44.

With the above configuration, by operating the remote control transmitter 20 in room A', the user can reproduce the desired source signal with the signal source device 40 in room B.

For example, when a user operates a remote control to select the CD player 43b in room A, a corresponding remote control signal is transmitted from the remote control transmitter 20 and received by the first repeater 10. The received remote control signal is input to the receiving section 11,
Further, the signal determination circuit 12 determines that the CD player has been selected, and the determination signal is input to the relay control section 13, further modulated by the modulation section 16, and then sent to the transmission section 17.
and is emitted as radio waves via the antenna 10a.

On the other hand, the second repeater 30 arranged in the room B is connected to the first repeater 1
The signal emitted from 0 is received by the receiving section 31 via the antenna 30a, converted into the original remote control signal by the demodulating section 32, further converted into an infrared signal by the transmitting section 33, and transmitted to the signal source device 40. Signal source device 40. When the receiver 41 receives a remote control signal, the signal is sent to the signal determination circuit 42.
Output to. The signal determination circuit 42 catches the information that the CD player has been selected and activates the switch 45 to select the CD player.
The signal line 92 of the player is connected to the amplifying section 44, and the CD player is driven.

Further, the signal determination circuit 42 outputs a volume control signal to the electronic volume 48 via the volume interface circuit 49, and the electronic volume 48 adjusts the playback volume based on this signal. Similarly, the signal determination circuit 42 includes a power supply control circuit 46 and a power supply interface circuit 4.
7 to control a power supply 48 and an external power supply (not shown).

As a result, the sound of the CD player 43b is reproduced in room B.

Next, a second embodiment of the invention according to claim 2 will be described.

FIG. 5 is a schematic block diagram of the third repeater, the fourth repeater, and the terminal equipment.

In FIG. 5, the output of the amplifying section 44 of the signal source device 40,
For example, the speaker output or the headphone output is connected to the modulation section 51 of the third repeater 50 by a relay line 82, and
The output of the power supply interface circuit 47 of the signal source device 40 is connected to the power supply 52 of the third repeater 50.

That is, the third repeater 50 transmits a signal such as a speaker output outputted from the amplifying section 44 of the signal source device 40 to the modulating section 5.
1 and is configured to roughly transmit it as a radio wave via the transmitter 53 and antenna 50a.

Note that in this embodiment, the signal source device 40
It is assumed that the connection is made in the same manner as in the embodiment, and the remote control transmitter 20 can be used for remote control.

The fourth repeater 60 connects to the third repeater 5 via the antenna 60a.
0 signal, a demodulator 62 that converts this signal into an audio signal, and a power supply interface circuit that outputs the signal from the power supply control unit 14 from the first repeater 10 to the power supply 63 via the relay line 84. 64 and the first middle school M! Vessel 1
0, and a volume interface circuit 66 that outputs a signal from the volume control section 15 to the electronic volume control unit 65 via a relay line 85.

The terminal equipment 70 includes an audio amplification unit 71 that amplifies the output signal of the demodulation unit 62 via a trunk line 81, a speaker system 72 that converts the output of the audio amplification unit 71 into sound, and
The power source 73 is connected to the power source interface circuit 64 via a power source 87.

With the above configuration, by operating the remote control transmitter 20 in the room A, the user can reproduce the desired source signal through the speaker system 72 installed in the room A.

For example, when the user operates the remote control to select the CD player 43b in room A, as explained in the first embodiment, the signal from the CD player 43b is output to the amplifying section 44 of the signal source device 40. are the same, so we will omit the signal flow before this.

The CD player signal inputted to the amplifying section 44 is transmitted to the modulating section 5 of the third repeater 50 from the speaker output terminal of the amplifying section, etc.
1 is input. The signal of the CD player is modulated by the modulation section 51, and further amplified by the transmission section 53, and then emitted as a radio wave from the antenna 50a. The emitted radio wave is the fourth
The signal is input to the receiving section 61 via the antenna 60a of the repeater 60, further converted into an audio signal by the demodulating section 62, and then manually input to the audio amplifying section 71 of the terminal device 70. The audio amplification section amplifies the audio signal and converts it into sound via the speaker system 72. Also, the power supply control section 14 of the first repeater 10
Control signals for the power source 63, 73 and the electronic volume 65 are sent to the power interface circuit s 4 of the fourth repeater 60 and the volume interface circuit 66 through the relay line 84 and from the volume control unit 15 through the relay line 85, respectively. will be sent. The output of the power supply interface circuit section 64 controls the power on/off, and the output of the volume interface circuit 66 is manually inputted to the electronic volume control section 65 as a volume control signal, and is further input to the volume control section of the audio amplification section 71 of the terminal device 70. (not shown). Then, the amplification level of the audio amplification section 71 is adjusted by this volume adjustment signal. In this way, the user can
By operating the remote control transmitter 20 at
By selecting the player 43b, the user can enjoy music and the like at the desired volume using the speaker system 72 installed in room A, and can also turn on and off the power of the device when necessary.

(Effects of the Invention) As explained above, by relaying the signal source device and the wireless remote control transmitter using radio waves using the first repeater and the second repeater, the signal source can be used even from a place where the remote control signal cannot directly reach. Able to operate equipment.

Furthermore, by relaying radio waves between the signal source device and the terminal equipment using the third and fourth repeaters, the signal source device can be operated even from a place where the remote control signal cannot directly reach, and the music etc. from the signal source can be played back. You can listen.

That is, since a cable or the like is not used for relaying, wiring is not required, and the installation location of the signal source device is less restricted by the size of the room or the like.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a first embodiment of a remote control system according to the present invention, FIG. 2 is a block diagram of a second embodiment of the same, and FIG. 3 is a remote control transmitter according to the first embodiment. , a schematic block diagram of the first repeater, the fourth
The figure shows a schematic block diagram of the second repeater and signal source device,
FIG. 5 is a schematic block diagram of a third repeater, a fourth repeater, and a terminal device according to the second embodiment. 10... First repeater, 16.51... Modulator, 20
...Wireless remote control transmitter, 24.53... Transmission section, 10a, 30a, 50a, 60a... Antenna, 30... Second repeater, 4o... Signal source device, 11
．． 61...Reception section, 32.62...Demodulation section, 50.
...Third repeater, 60... Fourth repeater, 70... Terminal equipment, 71... Audio amplification section, 72... Speaker system, 81.82... Relay line. Patent applicant: Toto Kiki Co., Ltd. Agent: Patent attorney (2) 1) Toyo Department: Patent attorney
Kuni Ohashi Otoma Patent Attorney Koyama Yumuro A Room A 1st Drawing Room 8 2nd Drawing Room B

Claims (2)

[Claims] (1) A signal source device equipped with a remote control function and capable of outputting multiple source signals from audio equipment, etc.; a wireless remote control transmitter for wirelessly remote controlling the signal source device; a first repeater that is installed correspondingly and receives a remote control signal from the wireless remote control transmitter, converts the remote control signal information into radio waves, and transmits the radio wave; and a first repeater that receives the signal of the first repeater and transmits the remote control signal information. a second repeater that converts the signal into a signal and transmits the signal to the signal source device. (2) a terminal device that converts the plurality of source signals into sound, a third repeater that converts the audio signal of the signal source device into radio waves and transmits the radio waves, and receives the signal of the third repeater, 2. The remote control system according to claim 1, further comprising a fourth repeater that converts the audio signal into an audio signal and outputs the audio signal to the terminal device.