JPS61103373A - Wirwless remote control method - Google Patents

Abstract

PURPOSE:To attain simple and sure operation by anybody by applying remote control to plural control devices relating to each other such as a television receiver and a video tape recorder with one pushbutton operation to reduce the number of times of operation. CONSTITUTION:In depressing a remote control operation button of a wireless remote controller, a signal representing that the operation button is depressed is inputted to a key input control circuit 24, which discriminates which button is depressed, and when the said button generates a remote control code of a single command, a command generating the remote control code is given to a single command remote control code generating circuit 25. When the button calls for the remote control code of plural commands, a command generating plural-command remote control code corresponding to the said button is given to a plural-command remote control code generating circuit 26. The remote control codes are modulated by a modulation circuit 27 and fed to an infrared- ray lighting section 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to wireless remote control of a plurality of related devices, such as a television receiver and a video tape recorder, using a common remote controller. This article concerns both methods of wireless remote control.

Prior Art In recent years, wireless remote control has been widely used in video tape recorders, television receivers, and audio equipment.

It is widely used in electrical products such as air conditioners.

Additionally, each electrical appliance usually comes with a separate wireless remote controller, but recently, multiple electrical appliances can be operated with one wireless remote controller (hereinafter referred to as wireless remote controller). are also appearing. Below, we will discuss the conventional example in the fourth section.
This will be explained with reference to the figures. In Fig. 4, 1 is a wireless remote control, 2 is a group of input operation buttons, video antenna switching video button 2&, video playback button 2b, TV CH
, 1 button, 2C, etc., including gold.

A transmitting microcomputer 3 supplies a corresponding signal to a light emitting unit 4 such as an infrared light emitting diode in response to the operation of each button of the input operation button group 2.

6 is an antenna input terminal 61, a channel selection circuit, and a demodulation circuit 8.
Cathode ray tube9. This television receiver includes a light receiving section 1o for a wireless remote control, and a receiving microcomputer 11 that controls a channel selection circuit 71&: to switch reception channels in response to a light receiving signal from the light receiving section 1o. 12 is an antenna input terminal 13. RFF power terminal 14° antenna selection switch 15. RF converter 16. A light receiving section 17 for wireless remote control, and a receiving microcomputer 19 that responds to the light receiving signal from the light receiving section 17 and switches the antenna changeover switch 16 or the mechanism 18 of the video tape recorder to a desired mode. This is a video tape recorder (hereinafter abbreviated as VTR, b) comprising:

Here, the operation of the conventional wireless remote control method configured as described above will be explained. j First, play back the VTR12i and connect it to the television receiver (hereinafter referred to as
An explanation will be given by taking as an example the case where the video is viewed on TV (abbreviated as TV) 5.

Here, the TV5 and VTR12i are powered on, but the TV screen shows the TV5's built-in tuning circuit (tuner).
Assume that the program selected on channel 7 is displayed. Also, VTR
12 RF power terminals 14 TVs antenna input terminals 6
is connected to by an RF cable 20. Furthermore, V.T.
The output channel of the RF converter 16 built into the R12 is 1 channel (CH), and for example, TVs can receive 1ch, which is the output channel of the RF converter 16 of the VTR 12, at channel position "1". There is.

In addition, the antenna changeover switch 15 built into the VTR12 is on the TV (T,) side, and the VTR1
2(i') RF output 2WA child 14 to d, VTR1
The television broadcast signal input from the antenna input terminal 13 of the TV 5 is output as is, and the television broadcast signal is input to the antenna input terminal 6 of the TV 5.

Then, the input signal enters the channel selection circuit 7 and is selected, and the selected television signal enters the demodulation circuit 8 and is demodulated into a video signal and an audio signal, and the selected television signal is displayed on the screen of the cathode ray tube 9. The current television broadcast will be displayed.

Now, in this state, the procedure for projecting the reproduced image of the VTR 12 on the television screen using the wireless remote control 1'ft will be explained below. First, wireless remote control 1
1'rvs and press the operation button for that TV CH1. Then, the transmitting microcomputer 3 outputs a remote control code for setting the channel position 't rI J of the TVs to the light emitting section 4, which converts the remote control code into infrared light 21 and emits it.

The infrared light 21 is received by the light receiving unit 1o of the TVs, converted into an electrical signal, and sent to the receiving microcomputer, computer 1.
Give to 1. In this receiving microcomputer 11,
The input signal is decoded and a command is issued to the channel selection circuit 7 to set the channel position of the TVs to "1".The channel selection circuit 7 changes the signal input from the antenna input terminal 6 to the channel 1 position "1" Only the television signal of the channel CH1 is received and the signal is supplied to the demodulation circuit 8.

The demodulation circuit 8 demodulates the CH1 television signal and displays it on the screen of the cathode ray tube 9.

Next, press the video antenna switching video button 2afjI of the wireless remote control 1 toward the VTR 12i. Then, the transmitting microcomputer 3 gives a remote control code for switching the antenna changeover switch 15 of the VTR 12 to the video (V) side to the light emitting section 4, and the light emitting section 4 converts the remote control code into infrared light and emits light. The infrared light is then received by the light receiving section 17 of the VTR' 12, converted into an electrical signal, and provided to the receiving microcomputer 19. The receiving microcomputer 19 decodes the input signal and executes a command to switch the antenna switching switch 15 to the video (V) side, and in response, switches the antenna switching switch 15 to the video (V) side. Then,
The output of the RF converter 16 is now led to the RF output terminal 14.

1) 1, wire vxl)-e. 7. . 1.
Push toward the 4th □2biVTR 12 [see FIG. 6(a)].

Then, the transmitting microcomputer 3 supplies a remote control code as shown in FIG. 6 (kl) for changing the mode of the VTR 12 to the light emitting section 4, and the light emitting section 4 converts the remote control code into an infrared light f'i22. [Figure 6 (C)
reference〕. The infrared light 22 is then received by the light receiving section 1 of the VTR 12, converted into an electrical signal, and sent to the receiving microcomputer 19. The receiving microcomputer 19 decodes the input signal and sends it to the VTR.
12 mode to playback mode.

By doing the above, wireless remote control 1t
- Can be used to display the entire playback image of the VTR 12 on the TVS.

Problems to be Solved by the Invention However, in the conventional example described above, TV5 and VTR
Since you have to operate the wireless remote control 1 for each of the 12
V"C' saw 7 and "u-90 action 0 vs.
The remote controller has to be operated multiple times at a time, which makes the remote control operation extremely complicated, making it difficult to use, especially for older people, younger people, and women who are unfamiliar with the mechanism.

In view of the above-mentioned problems, the present invention provides, with one remote control operation,
Anyone can operate the remote control easily and reliably by giving commands to a plurality of related devices (TV and VTR in the above example) to make them perform the desired operations.

Means for Solving the Problems In order to solve the above problems, the present invention provides a wireless remote control with a remote control code that sequentially gives commands to a plurality of related controlled devices with a single button press. It has a built-in transmitting microcomputer designed to do so.

Effect of the present invention With the above-described configuration, a series of related controls on a plurality of controlled devices can be performed with a single remote control operation,
With this, anyone can easily and reliably control a plurality of controlled devices.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a main part of an embodiment of the present invention in which a TV and a VTR are remotely controlled in a wireless manner in relation to one phase, similar to the conventional example described above. The difference between FIG. 1 and FIG. 4 is that a multi-command transmitting microcomputer 23 is used as the transmitting microcomputer. The rest is essentially the same as the conventional example shown in Fig. 4, so
Corresponding parts are denoted by the same reference numerals, and redundant explanation here will be omitted.

An example of the configuration of the multiple command transmitting microcomputer 23 is shown in FIG. In the figure, when a remote control operation button of the wireless remote control 1 is pressed, a signal indicating that the button has been pressed is input to the key control circuit 24. This key manual control circuit 24 determines what kind of button the pressed button is, and if the button requires a single-command remote control code, the single-command remote control code generation circuit 26 sends a code to the single-command remote control code generation circuit 26. Issue a command to create the corresponding remote control code. If the button requires a remote control code for multiple commands, a command is given to the multiple command remote control code generation circuit 26 to generate a multiple command remote control code corresponding to the button. The remote control code generated by the single command remote control code generation circuit 25 or the multiple command remote control code generation circuit 26 is supplied to a modulation circuit 27, where the remote control code is modulated into a signal suitable for wireless remote control using infrared rays. is,
The light is supplied to the light emitting section 4 at the next stage. The light emitting unit 4 emits infrared rays based on the modulated remote control code.

Next, the operation of this embodiment will be explained with reference to FIGS. 1 to 3. First, wireless remote control 1 (i-TVS
, when the video playback button 2b is pressed while pointing at the VTR 12 [see FIG. Figure 3 (
b) as shown in Te1~. yWcHt:ff
-M((), ef″“″9J* e f″ code entry)
, a video playback code (C) is output, and the light emitting unit 4 outputs a multiple command remote control code consisting of
), infrared rays as shown in A'1 B' and C' are emitted. The infrared rays emitted from the light emitting section 4 are 'l/
The light is received by the light receiving unit 1o of VTR 6 and the light receiving unit 17 of the VTR 12, and the light is received by the respective receiving microcomputers 11 and 19.
By identifying the corresponding code, the T"15 sets the channel position to "1", the VTR 12 switches the antenna changeover switch 15 to the video (V) side, and sets the mode to playback mode. As a result, the reproduced image '1TY5' of the VTR 12 can be viewed.

The above explanation is an example of connecting the TVS and VTEtl 2iRF cable and viewing the playback image of the VTR12 on the TVS.
When displaying the playback image of VTR1♀ on the TVS while connected with an im-V cable, connect the TVS and VTR12 to the RF
The same applies when displaying the image of the channel selected by the tuner built in the VTR12 on TVs while connected with a cable, or when displaying the image of the channel selected by the tuner built in to jTV5. A desired state can be remotely controlled using multiple command codes. The following table summarizes each of the above states.

(Hereinafter referred to as Kinpaku) Effects of the Invention As is clear from the above explanation, according to the present invention, a plurality of related controlled devices, such as a television receiver and a video tape recorder, can be remotely controlled by a single button operation. Since it can be controlled, the number of operations can be reduced, and anyone can operate it easily and reliably. .

In particular, in this case, conventional controlled equipment can be used as is, which is extremely advantageous economically.

[Brief explanation of drawings]

FIG. 1 is a block diagram of main parts showing one embodiment of the present invention, and FIG.
FIG. 3 is a time chart for explaining the operation of the embodiment of the present invention; FIG. 4 is a block diagram of the main parts of a conventional example; FIG. 5 is a time chart for explaining the operation of the conventional example. 1..."...Wireless remote control, 2...Input operation ship group, 4...Light emitting part, 6...T
V, 10... Light receiving section. 12... VTR, 17... Light receiving section, 2
3...Multi-command sending microcomputer, 2
4...Key manual control circuit, 25...Single command remote control code generation circuit, 26...Multiple command remote control code generation circuit, 27...Modulation circuit . Name of agent: Patent attorney Toshio Nakao and 1 other person
1 Figure 2 Figure 3 Figure 1-U% Figure 4

Claims (2)

[Claims] (1) A method of wirelessly remotely controlling a plurality of related controlled devices using a common remote controller, wherein the remote controller is configured to perform the necessary functions to operate the plurality of controlled devices. A push button group having a push button, a remote control code generating means for generating a remote control code of either a single command remote control code or a multiple command remote control code in response to an operated push button of the push button group, and the remote control code. If a device is used that is equipped with a transmitting means for emitting a signal for controlling the controlled device based on the remote control code generated by the generating means, and the remote control code is a single command, A wireless remote control method characterized in that a single controlled device corresponding to the command is controlled, and in the case of multiple commands, a plurality of controlled devices corresponding to the command are controlled. (2) As the plurality of controlled devices, a television receiver and a videotape recorder connected so that the reproduced image can be displayed on the television receiver are used, and the remote controller has a push button for video reproduction. a code that causes the television receiver to receive an empty channel when operated by the television receiver; a code that forms an input/output circuit so that the playback output of the video tape recorder is received by the television receiver; The wireless remote control method according to claim 1, characterized in that a wireless remote control method configured to generate a plurality of command remote control codes for putting the code into a playback state is used.