JP2670008B2 - CATV terminal device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a domestic CATV terminal device capable of recording messages by VTR.

[0002]

2. Description of the Related Art Conventionally, a remote controller in a VTR is provided with two or three types of code groups for each manufacturer, and can be controlled by any one of the code groups.

On the other hand, a VTR is used for a CATV terminal device for home use.
Is connected to a remote control module for generating a remote control signal for controlling the VTR, the remote control module is connected to the CATV terminal device.
There is a method of controlling the VTR by placing the remote control signal near the remote control signal receiving section of the above and transmitting a remote control code from this remote control module.

However, since the code group differs depending on the manufacturer and the model, it is necessary for the user to set the code group according to the VTR to be connected.

[0005] That is, at the time of setting, a different code group is sequentially output from the remote control module, the user confirms the code in which the VTR has operated, and sets the code using a dip switch provided in the CATV terminal device.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned drawbacks and provides a CATV terminal device capable of automatically setting a remote control code suitable for a connected device.

[0007]

The present invention comprises a tuner and
A switch circuit for selecting and outputting a video signal from the tuner or a video signal from an externally connected device, remote control signal generating means for sequentially generating a plurality of remote control signals corresponding to a plurality of types of devices, and Of the input video signal, and a memory for storing the type of the remote control signal when the video signal discrimination circuit discriminates the video signal.

[0008]

In the present invention, the remote control signal generating means sequentially outputs a plurality of types of remote control signals. Then, when the currently connected externally connected device receives the corresponding remote control signal, the externally connected device operates and outputs a video signal. This video signal is discriminated by the video signal discrimination circuit, and the type of remote control signal at that time is stored in the memory. As a result, the type of the externally connected device is determined, and thereafter, the remote control signal generating means generates only the type of remote control signal stored in the memory.

[0009]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of the apparatus of this embodiment.
Reference numeral 1 is a CATV terminal device, 2 is a VTR, 3 is a television receiver, and 4 is a remote controller module which is connected to the CATV terminal device 1 and in which code groups corresponding to a plurality of manufacturers are stored in advance.

The CATV terminal device 1 has an input terminal 11
Tuner 12 for demodulating an RF signal input from a switch, a switch 14 to which a video signal demodulated by the tuner and a VTR2 output from an input terminal 13 are input, a buffer amplifier 15, and the presence or absence of a video signal supplied with the buffer amplifier output The CPU 17 controls the tuner 12, the switch 14, and the remote controller module 4 based on the output of the video signal determination circuit 16 and the CPU 17 based on the output of the video signal determination circuit. The non-volatile memory 18 stores the code output by the remote control module 4 when it is determined. Reference numeral 19 is an output terminal to which the VTR is connected, and 20 is an output terminal to which the television receiver 3 is connected.

Next, the code automatic setting operation in the apparatus of this embodiment will be described.

First, the automatic setting operation of the CATV terminal device is started by the switch (not shown) of the remote control module 4.

The CPU 17 switches the switch 14 to the input terminal 13
Switch to the side. Next, the power-on code in the VTR-controlled remote control codes of each manufacturer is output in order from the remote control module 4, and the video signal discrimination circuit 1 is output each time.
The presence or absence of a video signal is monitored at 6. When the manufacturer of the output code and the manufacturer of the connected VTR match, the power of VTR2 is turned on.
The video output terminal outputs a blue back, white back or black burst signal, and the video discrimination circuit 16 discriminates the video signal by detecting, for example, the presence of a synchronization signal in these signals. The CPU 17 determines that the maker code output at this time is the maker of the currently connected VTR, and stores the maker name in the nonvolatile memory 18. In this way, the remote control code is automatically set.

Thereafter, the control of the VTR 2 from the CATV terminal device 1 uses the code group of the manufacturer stored in the nonvolatile memory 18.

Therefore, when a VTR is connected to the CATV terminal device to perform timer recording or the like, the VTV is connected to the CATV terminal device.
If a remote control module that generates a remote control signal for controlling the TR is connected and this remote control module is placed near the remote control signal receiving portion of the VTR, the VTR 2 can be set to the recording mode when the recording time comes.

The present invention can also be applied to devices other than VTRs such as laser disks.

[0018]

As described above, according to the present invention, since the remote control code suitable for the connected equipment can be automatically set,
By connecting a VTR to the CATV terminal device, timer recording can be easily performed.

[Brief description of the drawings]

FIG. 1 is a block diagram of a CATV terminal device according to an embodiment of the present invention.

[Explanation of symbols]

 1 CATV Terminal Device 2 VTR 4 Remote Control Module 12 Tuner 16 Video Signal Discrimination Circuit 17 CPU 18 Nonvolatile Memory

Claims (1)

(57) [Claims] 1. A tuner, a switch circuit for selecting and outputting a video signal from the tuner or a video signal from an external connection device, and a switch circuit arranged to face a remote control signal receiving section of the external connection device.
Multiple types of externally connected devices that are compatible with multiple types of externally connected devices.
Remote control signal generator that can generate a Mokon signal
A stage, and the video signal identification circuit for determining the presence or absence of an input video signal from the external connection apparatus, the output when the video signal discriminating circuit has determined a video signal
The remote control signal that is being transmitted is the remote control signal of the plurality of types.
Of the memory that stores the data indicating which of the above, and the switch circuit is controlled in the remote control signal automatic discrimination mode.
Control to select the externally connected device, and
Multiple types of remote control signals by controlling the mokon signal generation means
Are sequentially generated, and the video signal discrimination circuit outputs the video signal.
If the remote control signal output when it is determined is the external
This remote control signal is judged to be compatible with the connected device.
Indicates which of the above-mentioned multiple types of remote control signals is applicable
Control means for storing data in the memory.
ATV terminal device. "