JPS62213396A - Remote controller - Google Patents

Abstract

PURPOSE:To attain a remote control operation similar to an attached remote control transmitter by registering the correspondence of a transmission signal with a control signal in an equipment if a remote control transmitter is not attached to the equipment. CONSTITUTION:A nonvolatile memory 8 is linked to the microprocessor of a controller 7, and provided with an area storing the transmission code of a remote commander attached to one or more system components except an amplifier 1. The controller 7 of the amplifier 1 and the nonvolatile memory 8 have a function of translating transmission codes from the remote commanders attached to the system components 11, 12, 13... into a control code in the equipment of the amplifier 1. Thanks to the function the remote commander 20 attached to a television, for example, can execute the remote operation (function switching or volume operation) of the amplifier 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control device, and is particularly suitable for use in home audio/video systems.

[Summary of the invention]

If the remote control transmitter is not attached to the device, the correspondence between its transmitted signal and the control signal inside the device is registered so that the same remote operation as the attached remote control transmitter can be performed. This is effective when an audio/video system is assembled from multiple components that are not manufactured by the same manufacturer.

[Conventional technology]

In component stereo, tape recorders,
Connect a record player, compact disc player, radio tuner, etc. to a separate audio amplifier and use the amplifier's function selection switch (input selector switch)
to select each source. Also, TV tuner, VTR,
A so-called A/V amplifier is also known which has a terminal for inputting audio from a video disc player or the like and a function selection switch further equipped with these switching contacts.

When remotely controlling an audio/video system that has an amplifier as its core as described above, if each component is made by the same manufacturer, one remote control commander (hereinafter referred to as a remote commander) can be used to control, for example, a TV channel. In addition to making selections and operating the VTR, you can also switch amplifier functions and control volume. However, since there is no unified standard for remote control transmission signals, for example, if the television and amplifier are made by different manufacturers, they cannot be operated with a single remote commander. Therefore, for example, you can select the TV channel using the remote commander that comes with the TV, then use the remote commander on the amplifier to switch the input source of the amplifier to TV audio, and if necessary, control the volume, etc. You have to do a lot of complicated operations.

Furthermore, even if the products are from the same manufacturer, the remote control transmission codes may differ depending on the model, and in this case, there is the inconvenience of having to operate using separate remote commanders as described above.

An object of the present invention is to provide a remote control device that solves this problem.

[Means for solving problems]

When a system is configured with components from different manufacturers as shown in Fig. 3, first, the transmission signal from the remote control transmitter 20 that is not attached to the electronic device (amplifier 1) is taken in, and the signal transmitted from the remote control transmitter 20, which is not attached to the electronic device (amplifier 1), is taken in and used as the control signal inside the device. The correspondence is registered in the memory 8 in FIG. Next, when a transmission signal from the remote control transmitter 20 is received, the contents of the memory 8 are referred to and a corresponding device internal control signal is derived to a controlled section (for example, the function switching circuit 3 of the amplifier 1).

[For production]

Even if the remote control transmission code system differs for each system component, the conversion (reading) encoder can now be incorporated into the device by memory registration, expanding the operational range of the remote controller.

〔Example〕

Fig. 1 is a circuit diagram of the main parts of an audio amplifier with a remote commander showing an embodiment of the present invention, Fig. 2 is a front view of the operation panel of this amplifier, and Fig. 3 is an audio/video circuit diagram using this amplifier. FIG. 2 is a block diagram of the system. Amplifier 1 is tape recorder 1 that constitutes the system shown in Figure 3.
1, FM/AM tuner 12, compact disc player 13, record player 14, VTR 15, TV
The input terminal 2a of the second stereo channel receives the audio output from the tuner 16, video disc player 17, etc.
〜2 g−・・−・−−−−1−−−・− is provided. These input terminals 2a to 2g---------
The audio signal from -.

The function switching circuit 3 and the volume control circuit 5 are connected to a controller 7 equipped with a microprocessor.
The function switching buttons 3a to 3g in FIG. 2 controlled by the controller 7 and connected to the controller 7
-----, Volume amplifier down key 5a, 5b
Function switching, volume control, etc. can be performed by operating the .

Further, an infrared light receiving section 9 is provided on the front panel of the amplifier 1, and the above-mentioned function switching, volume control, etc. can also be performed using the attached remote commander.

A non-volatile memory 8 is coupled to the microprocessor of the controller 7 and provides an area for storing transmission codes for one or more system components other than the amplifier 1 or for a remote commander, as described below.

Controller 7 and nonvolatile memory 8 of amplifier l in FIG.
system components other than amplifier 1 11.12
．． It has a function of converting the transmission code attached to the 13-. With this function, for example, as shown in Figure 3, you can remotely control the amplifier 1 using the remote commander 20 attached to the TV.
function switching and volume control).

Hereinafter, a case where the TV remote commander 20 shown in FIG. 3 is used to remotely control the amplifier 1 will be described.

FIG. 4 is a block diagram of a well-known TV tuner. When a channel button on the remote commander is pressed, the infrared receiver 26 receives a corresponding infrared code, and the controller 24 receives this code and selects the corresponding channel from the preset memory 25. The preset data of is read out, and the PLL circuit 23
is given to. In the PLL circuit 23, the frequency division ratio of the loop is given by the preset data to determine the oscillation frequency of the VOC, and the PL is set as the local oscillation frequency of the corresponding channel.
It is applied from the L circuit 23 to the front end 20. The IF multiplied signal obtained from the front end 20 passes through a video IF circuit 21, is detected by a detection circuit 22, and is derived as a video output.

FIG. 5 is a flowchart of a teaching operation for causing the amplifier 1 to read external remote control data. First, press remote control write button 19 on the operation panel of amplifier 1 (Fig. 2).
When the controller 7 (microprocessor) is pressed, the controller 7 (microprocessor) enters the teaching mode, and the TV remote commander 20 enters a standby state for receiving the transmitted infrared code and storing it in the memory 8. When the 20 channel button is operated, a corresponding infrared code is transmitted, received by the infrared receiver 9, and stored in the memory 8 via the controller 7.

Once the infrared code has been written, the amplifier
It enters a standby state to memorize the code corresponding to the operation on the side. Here, function switching buttons 3a to 3 of amplifier 1
When the TV (3f) of g is specified and operated, a code corresponding to this operation is transferred from the controller 7 to the memory 8.

By the above teaching operation, the code of the TV remote commander 20 channel button and the code of the TV function switching button 3f of the amplifier 1 are stored in the memory 8 as a pair. In other words, operate the channel buttons as shown in Table 1 →
Correspondence table for TV function switching button operations is in memory 8.
created within.

Table 1. Memory correspondence table Note that teaching may be performed using the TV remote commander 20 and the remote commander attached to the amplifier 1.

Furthermore, by operating the volume up/down keys of the TV Soremote Commander 20, and then operating the corresponding up/down keys 5a and 5b of the amplifier 1, a table of infrared code correspondence corresponding to these operations is created. be able to. Further, as shown in Table 1, the operation of the power button of the TV remote commander 20 may be made to correspond to the operation of the TV function switching button 3f of the amplifier 1. These correspondence relationships can be set freely by the user, and there is no limit to the number of times they can be set. Therefore, the TV function switching 603f of the amplifier 1 corresponds to the dark blue channel of all the channels of the TV remote commander 20. Various settings are also possible.

Furthermore, as shown in Table 2, correspondence between remote commander operations for other system components and amplifier operations can be set in the memory 8. For example, when operating the play button on the commander of a compact disc player (CD), the function switch of amplifier 1 should be set to CD (switch button 3c in Figure 2), or the preset button on the commander of a radio tuner should be set. so that the function switching of amplifier 1 becomes the tuner (switching button 3b), or the amplifier 1 is connected to the play button of the tape recorder commander.
function switching is tape recorder (switching button 3a)
You can set the respective correspondence relationships so that

Table 2. Memory Correspondence Table FIG. 6 shows a flowchart of code conversion in which the transmission code of an external remote commander is read within the amplifier 1 based on the correspondence table registered as described above. When you operate the button, the infrared receiver of amplifier 1 receives the transmission code,
Send to controller 7. The controller 7 compares the received code with the registered code in the memory 8, and if a match with the registered code is detected, the corresponding function 7 Switch: 2-code (TV) is output from the controller 7. .

As a result, the function switching circuit 3 in FIG.
The signal at input terminal 2f of is selected.

As a result, the sound of the TV broadcast can be obtained from the speaker coupled to the amplifier 1.

Furthermore, when the volume up/down key of the remote commander 20 is operated, the memory 8 and controller 7 read the corresponding control code of the amplifier 1 in the same way as described above, and the volume control circuit 5 of FIG. 1 is controlled to produce a sound. It! I can make adjustments.

Alternatively, when the remote commander attached to the compact disc player 13, radio tuner 12, etc. is operated, the function switching circuit 3 of the amplifier 1 is similarly switched to select the corresponding source.

〔Effect of the invention〕

As described above, the present invention reads the transmission signal of a remote control transmitter that is not attached to the device, registers the correspondence with the control signal inside the device in the memory, and when receiving it, refers to the registered contents and supports remote control operation. As a result, even if a system is configured with components with different remote control code systems, it is possible to control the entire system with a common remote control transmitter.
The system becomes much easier to operate.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the main parts of an audio amplifier showing an embodiment of the present invention, Fig. 2 is a diagram of its operation panel, Fig. 3 is a block diagram of the audio/video system, and Fig. 4 is a main part of a TV tuner. FIG. 5 is a block diagram showing a teaching flowchart for transmitting codes of the remote commander, and FIG. 6 is a flowchart for rereading received codes. In addition, in the symbols used in the drawings, 1.
-----------Function switching circuit 38
~3g−・−・−・Function switching button 4−・−−
m---------------Flat amplifier 5...
−・−・−・・−1−−−・−・Volume control circuit 5a to 5 t−−−−−−−−−−1・Volume up/down key 6・−・−−−−− ------
・−−−−−・・Power amplifier 7・・−−1−−・−1−−−−・−−1−−Controller 8−−−−−−
−−−−−−−−−−−1 Nonvolatile memory 9−・−−−−
−・−・・・−・・−・Infrared receiver 10−・・−・・
・−・−−−−−−・−・Speaker terminal 19・−・−・
−・−・・・・−・Remote control write button.

Claims (1)

[Claims] Memory writing means for capturing the transmission signal of a remote control transmitter not attached to the electronic device and registering the correspondence with the control signal inside the device in the memory, and receiving the transmission signal from the remote control transmitter. A remote control device for an electronic device, comprising memory reading means for referring to the contents of the memory and outputting a corresponding device internal control signal to a controlled unit when