JPH0362360B2 - - Google Patents

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is a remote control device that allows a single device to send complex commands to multiple devices such as independent TV receivers and teletext decoders. It is related to.

``Prior Art'' Conventionally, as shown in FIG. 4, a TV receiver 1 uses a TV-specific remote controller 3, a teletext decoder 2 uses a teletext decoder-specific remote controller 4, and so on. Dedicated remote controllers 3 and 4 were used for each of 1 and 2.

For example, as a procedure for receiving teletext, first of all, the TV receiver 1, which is the first device, is turned on by operating the TV remote control 3.

Second, use the same TV remote controller 3 to select the RGB 21-pin terminal (21-pin multi-connector) or video mode.

Third, the teletext decoder dedicated remote control 4, which is different from the TV dedicated remote control 3, is operated to start (turn on) the teletext decoder 2.

"Problem to be Solved by the Invention" As described above, conventionally, when two different devices, the TV receiver 1 and the teletext decoder 2, needed to be operated simultaneously, a dedicated remote control was used for each device. As a result, there was the hassle of having to use these remote controllers, and there were also problems such as losing one of the remote controllers and not being able to operate the remote controller.

Furthermore, even if the remote controllers 3 and 4 are simply connected and operated at the same time to emit infrared remote control signals, some or all of the remote control signals overlap and are input, so the receiving section of each device ,
The remote control signal may be recognized as being different from the original remote control signal, and both devices may not be able to receive it as a correct signal, causing malfunctions such as non-operation.

An object of the present invention is to obtain a device that can receive teletext multiplex broadcasting by operating a plurality of devices such as a TV receiver and a teletext decoder with a single remote control.

"Means for Solving the Problems" The present invention provides a first device consisting of a TV receiver;
A common remote control device is provided for a second device to which video signals and/or audio signals are to be combined with the first device, and this remote control device is connected to the first device and the second device. a key matrix for sending a command signal to the second device; an operation start code for the first device corresponding to the key read from the key matrix;
a memory for storing commands such as a selection code for coupling between the device and the second device and an operation start code for the second device; and processing the commands in the memory based on the key matrix by key operations. It consists of a microcomputer and a remote control signal generation circuit that sequentially outputs remote control signals in a predetermined order based on a plurality of commands from the microcomputer to the first device and the second device in a time-sharing manner with a single key operation. It is something.

"Operation" For example, to receive a teletext broadcast, first press the teletext reception key on the remote control. Then, first, a TV on code signal is output to put the first device of the TV receiver into an operation start (on) state.

Then, after a predetermined time, the same remote controller outputs an RGB21 (21-pin multi-connector) selection code signal for coupling between the first device and the second device.

Further, after a predetermined period of time, a code signal for turning on a second device such as a teletext decoder is sequentially output from the same remote controller in a time-division manner, and by repeating this, the teletext is received.

“Example” An example of the present invention will be described below based on the drawings.

In Figure 1, 1 is a TV as the first device.
The receiver 2 is a teletext decoder as a second device. One common remote control 5 is used for these TV receiver 1 and teletext decoder 2. As shown in FIG. 2, in this remote control 5, a key matrix 6 is coupled to an input/output port of a microcomputer 7, and the microcomputer 7 includes:
A ROM 8 is provided as a memory in which a plurality of commands corresponding to the keys read from the key matrix 6 are stored in advance. Further, a remote control signal generation circuit 13 is coupled to the remote control signal broadcasting port 9 of the microcomputer 7, which is comprised of a photodiode 12 that emits infrared light via a drive transistor 10 and a resistor 11.

In the above configuration, a key for receiving teletext broadcasting is pressed. Then, the microcomputer 7 judges the key input, and if it is a valid key,
The corresponding command data is read from the ROM 8, and a remote control signal as shown in FIG. 3 with a 38 KMz carrier signal is output to the remote control signal sending port 9.

This remote control signal is first outputted as a TV on code signal for turning on the TV receiver 1, and secondly, after 108 msec, the same remote control 5 is output.
An RGB21 (21-pin multi-connector) selection code signal is output, and then, 108 msec later, a teletext decoder on code signal is sequentially output from the same remote control 5 in a time-division manner, and this process is repeated.

Then, first, the TV receiver 1 is turned on, second, the 21-pin multi-connector is selected, and third, the teletext decoder 2 is turned on. Therefore, teletext can be received by the TV receiver 1.

The time interval of each signal was set to 108 msec, but this can be freely designed using the software of microcomputer 7, and when using a microcomputer with another IC (integrated circuit), it is limited to this time interval. It's not a thing.

"Effects of the Invention" Since the present invention is configured as described above, there is no need to equip a dedicated remote control for each of multiple devices such as a TV receiver and a teletext decoder, and with a single operation of one remote control, It is possible to receive teletext by sequentially sending multiple commands in a time-sharing manner to multiple independent devices such as a TV receiver and teletext decoder.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of an embodiment of the remote control according to the present invention, and FIG. 2 is an electric circuit diagram of the same remote controller.
FIG. 3 is an explanatory diagram of output signals of the same remote controller, and FIG. 4 is an explanatory diagram of a conventional remote controller.

Claims (1)

[Claims] 1. A first device consisting of a TV receiver;
A common remote control device is provided for a second device to which video signals and/or audio signals are to be combined with the device, and this remote control device is connected to the first device and the second device. a key matrix for sending a command signal to a first device; an operation start code for a first device corresponding to a key read from the key matrix; and a code for transmitting the video signal and/or audio signal to the first device and the second device.
Selection code for coupling with the second device
a memory that stores a command for an operation start code of the device; a microcomputer that processes commands in the memory based on the key matrix by key operations; and a predetermined order based on a plurality of commands from the microcomputer with a single key operation. A remote control device comprising: a remote control signal generation circuit that sequentially outputs a remote control signal to the first device and the second device in a time-sharing manner.