JPH02158295A - Remote controller - Google Patents

Abstract

PURPOSE:To easily perform remote control on two or more equipment of the same kind separately or simultaneously by attaching a code proper to a remote control transmitter on the transmitter, and selecting whether or not the code is recognized by a switch. CONSTITUTION:This device is comprised of tape recorders 1a and 1b, the transmitters 2a and 2b, instruction buttons 3a and 3b, infrared ray light receiving parts 4a and 4b, and the switches 5a and 5b. And it is selected whether a prescribed operation is performed only when an identification code proper to a receiver coincides with the identification code proper to the transmitter, or the prescribed operation is performed in spite of the identification code proper to the transmitter by the switches 5a and 5b. In such a way, it is possible to operate a large number of equipment by one transmitter, or to operate it individually even when a large number of equipment are used.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device that controls electronic or electrical equipment located at a distance by using infrared rays or radio waves.

BACKGROUND OF THE INVENTION FIG. 5 shows an example of a conventional remote control device. In FIG. 5, 21a.

Reference numeral 21b is a transmitter, and 20a and 20b are tape recorders 4 which receive infrared rays or radio waves and are operated by a built-in microcomputer (hereinafter referred to as microcomputer). In the remote control device configured as described above, by pressing the operation mode registered in the transmitter, the corresponding code is transmitted from the transmitter, demodulated by the receiver of the tape recorder, and predetermined operation is performed by the microcomputer. is ordered and executed.

Problems to be Solved by the Invention However, with the conventional configuration described above, for example, when two tape recorders are placed side by side and operated by remote control, if they are of the same model, the two units will operate at the same time by operating the remote control, so it is necessary to operate the two units separately. The problem was that it was difficult to operate.

SUMMARY OF THE INVENTION An object of the present invention is to provide a remote control device that solves the above-mentioned conventional problems and easily remotely controls two or more of the same model separately or simultaneously.

Means for Solving the Problems In order to achieve the above object, the present invention provides an instruction code and
A transmitter that transmits an identification code unique to the transmitter, and a receiver that has a microcomputer that instructs another circuit to perform a predetermined operation according to the code transmitted from the transmitter. A switch that allows you to select whether to perform a predetermined operation only when the receiver-specific identification code and transmitter-specific identification code match, or whether to perform the predetermined operation regardless of the transmitter-specific identification code. It has a set configuration.

Effect of the present invention With the above-described configuration, even if the same models are lined up and operated by remote control, only the device that corresponds to the code unique to the transmitter will operate, so it is possible to make it perform a different operation from other devices. Become. Also, even if you want to operate all devices at the same time, you can operate all devices by selecting the switch and ignoring the transmitter-specific code.

Embodiment FIGS. 1, 2, 3, and 4 show a remote control device according to an embodiment of the present invention.

For the sake of explanation, a case will be explained in which infrared rays are used.

In Fig. 1, 1aslb is a tape recorder of the same model, 2a and 2b are remote control transmitters %3a,
3b is a command button of the transmitter, 4a and 4b are infrared receivers, and 5a.

5b This is a mode switching switch that selects whether or not to recognize the transmitter-specific code in the code decoding microcomputer of the IJ remote control.

FIG. 2 is a block diagram of the remote control transmitter. When a key on the transmitter is pressed, data is transferred from the key matrix circuit 6 to the key manual control unit 7, the data is held in the data holding circuit 8 consisting of a shift register, etc., and the data is converted into a predetermined pulse train in the pulse train generating circuit 9 and modulated. The light is modulated by the circuit 10 and becomes infrared light, which is emitted from the light emitting diode 11. At this time, the emitted pulse train is structured as shown in FIG. 3, for example. In FIG. 3, bytes up to the 6th byte have the configuration used in a normal remote control device, and the 7th byte is a newly added code 12 unique to the transmitter consisting of, for example, 1 byte. The infrared rays emitted from the transmitter are photoelectrically converted by the light-receiving diode 13 shown in FIG. Have them perform the following actions.

Here, the switch 15 provided at the input/output port of the microcomputer 17 recognizes the transmitter-specific code and performs a predetermined operation only when it matches the receiver's unique code, or the transmitter-specific code is You can choose whether to ignore it and proceed with the operation.

Next, the operation of the remote control device of this embodiment will be explained. In FIG. 1, when a switch 3a in a transmitter 2a having a certain operating mode is pressed, a code as shown in FIG. 3 is created inside the transmitter and infrared rays are emitted. The emitted infrared rays are photoelectrically converted by a light-receiving diode 13 disposed in the light-receiving section 4a, and then amplified and demodulated to perform a predetermined operation, such as putting a VTR into a playback state. At this time, the infrared rays also reach the infrared receiver 46 and are amplified and demodulated, but the transmitter code is not connected to the tape recorder 1a.
If the transmitter-specific code recognition switch provided on the tape recorder 1b is set to recognize the code, the tape recorder 1b can be recognized by the signal from the transmitter 2a.
never works. Similarly, the tape recorder 1a does not operate on the transmitter 2b. Further, by setting the switch 5a so as not to recognize the transmitter-specific code, the transmitter 2b can operate the tape recorders 1a and 1b simultaneously. Similarly, the tape recorders 1a and 1b can be operated simultaneously by the transmitter 2a.

In this embodiment, a switch for mode switching is provided on the receiving side, but a switch for mode switching may be provided on the transmitting side. In this case, the transmitter can change the switch so that it does not generate a transmitter-specific code, replace it with a shared code and transmit it equally, or create a new 8th byte and use it for many devices. The receiving side may be made to recognize this eighth byte by providing information on whether or not to operate the 8th byte at the same time.

Effects of the Invention As described above, the present invention has a transmitter-specific code in the remote control transmitter, and by selecting whether or not to recognize this code with a switch, multiple transmitters can be used with one transmitter.
This has the effect of allowing multiple devices to be moved, or even when many of the same devices are used, to operate them individually.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a remote control device according to an embodiment of the present invention, FIG. 2 is a block diagram of a transmitter, FIG. 3 is a state diagram of a transmission code, FIG. 4 is a block diagram of a receiver, and FIG. The figure is a configuration diagram of a conventional remote control device. 1a, 1b...tape recorder, 2a, 2b...
・Transmitter, 3 al 3 b... command button,
4a, 4b...Infrared receiving section, 5as5b・
...Switch, 6...Key matrix circuit, 7
...key human control unit, 8...data holding circuit,
9... Pulse train generation circuit, 10... Modulation circuit, 11... Light emitting diode, 12... Code unique to transmitter, 13... Light receiving diode,
17...Microcomputer, 18...Switch. Name of agent: Patent attorney Shigetaka Awano

Claims (1)

[Claims] A transmitter that uses infrared rays or radio waves to transmit a predetermined command code according to the operating mode as well as an identification code unique to the transmitter, and a transmitter that receives the sent infrared rays or radio waves, amplifies them to the required level, and demodulates them. and a microcomputer that instructs other circuits to operate according to various codes based on the output of the processing circuit, and includes an identification code unique to the receiver and an identification code unique to the transmitter. A remote control characterized in that a transmitter or receiver is provided with a switch that allows a user to select whether to perform a predetermined operation only when the numbers match, or to perform a predetermined operation regardless of the transmitter's unique identification code. Device.