JPS63234696A - Remote control selector - Google Patents

Abstract

PURPOSE:To sufficiently utilize remote control function by deciding a device to be controlled not desired to be selected by a non-selection controlled device decision means and operating a control means to operate a disturbing operation section corresponding to the device to be controlled thereby disturbing a remote control electromagnetic wave signal to each signal reception section. CONSTITUTION:The non-selection controlled device decision means 13a decides devices to be controlled not desired to be selected, that is, devices other than the desired controlled device by a transmission code received by an input section 11 and disturbing operation sections 15a-15c corresponding to the decided controlled device are operated by a control means 13c. Thus, a remote control electromagnetic wave signal reaching each signal reception section of plural controlled devices is disturbed from being inputted to each signal reception section by the operation of the sections 15a-15c. thus, the signal is not received by the controlled devices corresponding to the sections 15a-15c but received only the signal reception section of the desired controlled device by the sections 15a-15c.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device suitable for remotely controlling controlled devices such as VTRs, TVs, and CDs using infrared rays, and in particular, The present invention relates to a remote control selection device that is capable of individually and independently remotely controlling a plurality of controlled devices controlled by a computer.

[Prior art] In recent years, VTRs, TVs, and CDs that are remotely controlled by infrared rays
, air conditioners, cassette decks, lighting, and other controlled devices are commercialized, and there are cases in which several infrared transmitters for remote control are present at the same location. In such a case, the user must always have these transmitters at hand, making operation complicated.

Therefore, an integrated remote control infrared transmitter as disclosed in Japanese Patent Application Laid-Open No. 61-201571 has been proposed. This integrated remote control infrared transmitter is equipped with a receiving section that receives a transmission code from the outside, inputs infrared rays from other transmitters that are individually used into this receiving section, and
The transmission codes of other transmitters are stored in the memory corresponding to the transmission key, including carrier frequency, transmission format, transmission code, repetition time, etc., either as they are or in coded form. As a result, when controlling a controlled device, you only need to press the appropriate transmit key on the integrated remote control infrared transmitter. This makes it possible to integrate them into a single system, eliminating the complexity of operations described above.

[Problems to be Solved by the Invention] By the way, when a plurality of controlled devices are provided in one place as described above, if these controlled devices are all controlled by different infrared transmission codes, Multiple controlled devices can be individually controlled by each remote control infrared transmitter or the integrated remote control infrared transmitter described above, but if multiple controlled devices are controlled by the same infrared transmission code. When there are two or more devices, there is an inconvenience that even devices that are not desired to be controlled may be controlled.

For example, as shown in Fig. 6, if three controlled devices A HAug A3, which are the same equipment from the same manufacturer, are installed in the same location, the remote control infrared transmitter B
Since the infrared transmission code emitted from A1. is common, all controlled devices A1. A, ,A, are controlled simultaneously and perform the same operation.

In order to prevent such inconveniences and control the controlled devices independently, it has been necessary to prevent unnecessary equipment from operating by, for example, turning off the power to devices other than the controlled device that should be controlled. This makes it impossible to fully utilize the remote control function.

In recent years, there is an extremely high possibility that there are remote control infrared transmitters with the same infrared transmission code within a controllable range, so it is necessary to prevent the above-mentioned inconveniences while making full use of the remote control function. It is hoped that

The present invention has been made to solve the above-mentioned problems, and when there are controlled devices within a controllable range that are controlled by the same transmission code, it is possible to use a conventional remote control device. To provide a remote control selection device capable of independently and arbitrarily selecting and remotely controlling only a desired controlled device without modification, and fully utilizing a remote control function.

[Means for Solving the Problems] Therefore, the remote control selection device of the present invention provides a remote control selection device that can interfere with a remote control electromagnetic wave signal to a remote control electromagnetic wave signal receiving unit in a plurality of controlled devices. non-selected controlled device determining means, which is provided with the same number of interfering units in the vicinity of each of the signal receiving units, and determines which controlled device is not desired to be selected from among the controlled devices from the transmission code received by the input unit; , and a control means for operating a sabotage operation unit corresponding to the determined controlled device.

[Operation] In the remote control selection device of the invention described above, the unselected controlled device determining means determines the controlled device that is not desired to be selected, that is, a device other than the desired controlled device, from the transmission code received at the input section. The control means operates the sabotage operation unit corresponding to the determined controlled device. As a result, the electromagnetic wave signal for remote control that has reached each signal receiving section of a plurality of controlled devices is blocked from being input to each signal receiving section by the operation of the above-mentioned interfering operation section. The signal is not received by the controlled device corresponding to the section, but is received only by the signal receiving section of the desired controlled device in which the interfering section is not activated.

[Embodiments of the invention] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing a remote control selection device as a first embodiment of the present invention, and FIG. 2 is a perspective view specifically showing how the device is used. In this embodiment, as shown in FIG.
Three controlled devices A1. A2. A case where A3 is provided at the same location will be explained. The controlled devices A, G, and All A3 are all controlled by a remote control infrared signal from the same remote control infrared transmitter B. Further, in this embodiment, in addition to the infrared transmitter B for remote control, an infrared transmitter B1 dedicated to this device, that is, the remote control selection device S is also provided.

Now, in Fig. 1, 11 is an external (infrared transmitter Bl)
12 is a receiving circuit, and this receiving circuit 12 receives the electrical signal from the infrared receiving element 11. The data is digitized and output to the control circuit 13.

In addition, 15a, 15b, and 15c are controlled devices A, A
2. A3 has the same number (3 units) of infrared light emitting elements (output elements) as a disturbance operation unit, and these infrared light emitting elements 15 a, 15 b, 15 c are respectively connected to the controlled device A1. A2. The remote control infrared signal receivers 21 a, 2 l b, 21 c in A3 are provided near the remote control infrared signal receivers 21 a, 2 l b, 21 c, and each Signal receiving section 21
The output circuit 14a outputs infrared signal interference waves for remote control to the output circuits 14a, 21b, and 21c.

It is connected to the control circuit 13 via 14b and 14c.

Also, 16.17 each has a frequency of 38kHz.

This is an oscillation circuit that generates the above-mentioned interference wave of 40 kHz, and the carrier wave of an infrared signal for remote control is used as the interference wave (the principle of the interference will be described later).

Here, the reason why multiple oscillation circuits are provided is to create the optimal frequency for each controlled device, since the carrier wave differs depending on the controlled device.The oscillation circuit 16 or 17 is switched to select an appropriate frequency. An interference wave frequency selection switch 18 is provided to select the interference frequency.

-'/- By the way, the control circuit 13 includes a selection circuit 13a as a non-selected controlled device determining means, a frequency selection circuit 13b,
It is composed of an interference wave output control circuit 13c as a control means. The selection circuit 13a has a function of determining a controlled device (A1, A2, A,) that is not desired to be selected from the transmission code received by the infrared receiving element 11, digitized and inputted via the receiving circuit 12. There is.

Further, the frequency selection circuit 13b receives a selection signal from the interference frequency selection switch 18 and selects which of the oscillation circuits 16 and 17 to use. The controlled device that you do not want to select (A, A2, A3
) corresponding infrared light emitting elements (15a, 15b, l
5c), the output of the interference wave of the frequency selected by the frequency selection circuit 13b is controlled via the output circuits 14a, 14b, and 14c, and the infrared light emitting element (15
a, 15b.

15c).

In addition, 19 is a selection number display circuit, 2o is a selection number display element, and the selection number display circuit 19 is a controlled device (A□, A
, , A, ), determine the desired controlled device (A1.A2.A,) that is to be remotely controlled, that is, the selected controlled device, and display the selection number regarding this controlled device on the selection number display element. 20, an electrical signal is output to the same selection number display element 20 to be displayed. As the selection number display element 20, an LED (light emitting diode), an LCD (liquid crystal display), or the like is generally used.

Since the remote control selection device as the first embodiment of the present invention is configured as described above, one of the controlled devices A1gA, , A3 controlled by the same infrared transmission code
For example, when controlling only the controlled device A1 with the remote control infrared transmitter B, as shown in FIGS.
First, a transmission code indicating that the controlled device A1 is to be selected is transmitted from the infrared transmitter B1 dedicated to the remote control selection device S of this embodiment to the infrared light receiving element 11 in the remote control selection device S.

This transmission code is converted into an electrical signal by the infrared light receiving element 11, further digitized by the receiving circuit 12, and then output to the control circuit 13.

In this control circuit 13, the transmission code is inputted to a selection circuit 13a, and the selection circuit 13a selects the transmission code from the controllable device A1. A2. Controlled device A2 that you do not want to select from A3. A3 is determined.

Then, the controlled device A determined by the selection circuit 13a
2. Information about A3 is output to the interference wave output control circuit 13c, and from this interference wave output control circuit 13c, a predetermined carrier wave is transmitted to the controlled device A2.A3 as an infrared signal interference wave for remote control. Infrared light emitting elements 15b, 15 corresponding to A3
output circuit 14b to c.

14c. Here, the output interference wave (
The frequency of the carrier wave is set in advance by switching the oscillation circuits 16 and 17 using the interference wave frequency selection switch 18 and the frequency selection circuit 13b.

Generally, the infrared receiving circuit connected to the infrared signal receiving sections 21a, 21b, 21c of the controlled device A□HA21 A3 etc. has a built-in circuit called ALCC automatic level control. Regardless of the strength of the infrared signal from the infrared signal, the infrared signal is converted into a constant output voltage. Therefore, in this device, by emitting carrier waves as interference waves near the signal receiving sections 21a, 21b, and 21c, the controlled device A to be controlled by the remote control infrared transmitter B is used to control the controlled device outside the tool. A2. The ALC circuit in A3 is brought into a saturated state to mask the remote control infrared signal from the remote control infrared transmitter B.

Therefore, in this state, the remote control infrared signal from the remote control infrared transmitter B is received only by the signal receiving unit 21a of the unmasked desired controlled device A1, and only the same controlled device A□ is received. It will be controlled.

At this time, the above information from the selection circuit 13a is also input to the selection number display circuit 19, and this selection number = 11= The selection number regarding the controlled device A□ selected by the infrared transmitter B□ is displayed by the display circuit 19. be done.

As described above, according to the first embodiment of the present invention, the controlled devices A1. A2. A3, by using the remote control selection device S and infrared transmitter B1 of this embodiment, the desired controlled device (A, , A2.A3)
This makes it possible to independently and arbitrarily select and remotely control only the following items, making it possible to fully utilize the remote control function.

In the first embodiment, the infrared transmitter is used for the controlled device A□HA2 g A3 and for the remote control selection device S.
However, by using the device disclosed in the above-mentioned Japanese Patent Application Laid-open No. 61-201571, as shown in Fig. Integrated infrared transmitter B that integrates multiple devices into one unit
2, and it is also possible to further improve the operability.

Further, in the first embodiment, the frequency of the output interference wave (carrier wave) is selected by the interference wave frequency selection switch 18, but the oscillation circuit 16 in FIG.
．． i7. In place of the interference frequency selection switch 18 and the frequency selection circuit 13a, an automatic oscillation circuit is provided that automatically oscillates and outputs a carrier wave according to the carrier frequency of the controlled device to the interference wave output control circuit 13c. It may be possible to make it compatible with.

Next, a description will be given of a remote control selection device as a second embodiment of the present invention. FIG. 5 is a block diagram thereof.
, 15b, 15c, an optical shutter 23a capable of blocking the remote control infrared signal from the infrared transmitter B;
23b and 23C are the signal input parts of the controlled devices A and A2 and A3 (the reference numeral 21a in FIG.
, 21b.

21c). These optical shutters 23a, 23b, 23c are normally in an open state, and the output circuits 22a, 22b.

It is connected to the control circuit 13A via 22c.

This control circuit 13A is a selection circuit 1 similar to that of the first embodiment.
3a, and a shutter control circuit 13d as a control means.

The shutter control circuit 13d selects the controlled device (A) that is determined by the selection circuit 13a and does not want to be selected.

A2. Shutters (23a, 23b) corresponding to A3).

A control signal is output to the shutter (23C) via the output circuits 22a, 22b, 22c, and the shutter (23C) as a disturbing operation section is output.
a, 23b, 23c) are closed.

Note that the shutters 23a, 23b, and 23c may be mechanical (for example, a general camera shutter) or electrical (for example, liquid crystal).

In addition, in FIG. 5, the same reference numerals as in FIG. 1 indicate the same parts, so the explanation thereof will be omitted.

With the above-described configuration, while the device of the first embodiment interferes with the remote control infrared signal with interference waves, the device of the second embodiment interferes with the controlled devices (A1, A2, .
A, ) corresponding to the shutter (23a.

By closing 23b and 23c) and blocking the remote control infrared signal, it becomes possible to independently and arbitrarily select and remotely control only the desired controlled device, and the same effect as in the first embodiment can be obtained. .

In addition, in the second embodiment, since no interference waves are used, the frequency selection circuit 1 required in the device of the first embodiment is
The 3b9 oscillation circuits 16 and 17 and the interference wave frequency selection switch 18 are not required, and the dependence on the carrier frequency as in the first embodiment can be eliminated.

In the first and second embodiments described above, the number of controlled devices and infrared light emitting elements is three, but the device of the present invention is not limited to this, and the number of controlled devices and infrared light emitting elements is three. Any number of devices above can be applied, and the greater the number, the more effectively the functions of the device of the present invention will be utilized.

[Effects of the Invention] As described in detail above, according to the remote control selection device of the present invention, the non-selected controlled device determining means determines the controlled device that is not desired to be selected and responds to the controlled device. By activating the interfering operation section by the control means, the input of the remote control electromagnetic wave signal to each signal receiving section is disturbed, so that the remote control electromagnetic wave signal is transmitted to the signal receiving section of the desired controlled device. When a controlled device that is controlled by the same transmission code is within the controllable range, the desired target can be received without modifying the conventional remote control transmitter. Since only the control device can be independently and arbitrarily selected and remotely controlled, there is an effect that the remote control function can be fully utilized.

[Brief explanation of drawings]

1 to 4 show a remote control selection device as a first embodiment of the present invention, FIG. 1 is a block diagram thereof, FIG. 2 is a perspective view specifically showing how the device is used, and FIG. 3 is an overall configuration diagram of the remote control system, FIG. 4 is an overall configuration diagram of a modified example of the remote control system using the above device, and FIG. 5 is a diagram showing a remote control selection device as a second embodiment of the present invention. FIG. 6 is an overall configuration diagram for explaining the problems of the conventional remote control system. In the figure, 11--infrared light receiving element as human power section, 12...-receiving circuit, 13, 13A--control circuit, 13a =--selection circuit as non-selected controlled device determining means, 13b - Frequency selection circuit, 13c--Interference wave output control circuit as control means, 13d--Shutter control circuit as control means, 14a to 14c...
Output circuit, 15a-15c-Infrared light emitting element (output element) as a disturbing operation section, 16.17.~Oscillation circuit, 1
8...Interference wave frequency selection switch, 19...Selection number display circuit, 20-...Selection number display element, 21a
~21 c--Infrared signal receiving section for remote control as an electromagnetic wave signal receiving section for remote control, 22a-22 cm--Output circuit, 23a-23 c--Optical shutter as a disturbing operation section, A1-A3 ...Controlled device, B...
Infrared transmitter for remote control, B1... Infrared transmitter for remote control selection device, B2-... Integrated infrared transmitter,
S...Remote control selection device. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (3)

[Claims] (1) It is equipped with an input section that receives a transmission code from the outside, and is installed near the remote control electromagnetic wave signal receiving section of a plurality of controlled devices, and is capable of interfering with the remote control electromagnetic wave signal to each signal receiving section. non-selected controlled device determining means, which includes the same number of disturbing operation units as the controlled devices, and determines a controlled device that is not desired to be selected from among the controlled devices from the transmission code received by the input unit; 1. A remote control selection device comprising: control means for operating a sabotage operation section corresponding to a controlled device determined by the non-selected controlled device determination means. (2) The remote control according to claim 1, wherein the interference operation section is configured as an output element that outputs a remote control electromagnetic signal interference wave toward each of the signal reception sections. Selection device. (3) The remote control selection device according to claim 1, wherein the interfering operation section is configured as a shutter that blocks the remote control electromagnetic wave signal from each of the signal receiving sections.