JPH0522685A - Video recording and reproducing device - Google Patents

Abstract

PURPOSE:To provide a video recording and reproducing device which can monitor a signal inputted to an input terminal except a terminal to which the signal to record is inputted, even when a VTR is in the recording condition. CONSTITUTION:The device is equipped with a tuner part 2 to demodulate a television signal inputted from a television signal input terminal 1, plural external input terminals 3, an input switching circuit 4 to switch an output signal from a tuner part 1 and an external input signal inputted from the external input terminals 3, a recording circuit 5 to record the output signal from the input switching circuit 4, a reproducing circuit 6 to reproduce the recorded signal, an output terminal 7, and an output switching circuit 20 to switch the output signal from the tuner part 2, the external input signal inputted from the external input terminals 3 and the output signal of the reproducing circuit and output the signal to the output terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video recording / reproducing apparatus capable of monitoring another input signal while recording the input signal.

[0002]

2. Description of the Related Art In recent years, video recording / reproducing devices, particularly video tape recorders (hereinafter abbreviated as VTRs), have been widely used in general households, and are used together with other audio products and television equipment in a system. Has become. For this reason, the television receiver is used only as a monitor, and is used only for connection with a VTR when there is only one video signal video input terminal. When trying to monitor another video signal with such a system constructed, the cable connected to the television receiver must be disconnected and reconnected to another video device. In order to deal with such a situation, in the conventional video recording / reproducing apparatus, an external input terminal is provided on the front surface and connected to the input terminal to facilitate monitoring of other video equipment.

A conventional video recording / reproducing apparatus will be described below with reference to the drawings. As shown in FIG. 2, the television signal is input from the input terminal 1 and the tuner unit 2
And input to the input switching circuit 4 together with the external input signal output from the plurality of external input terminals 3. The output signal 9 output from the input switching circuit 4 is the recording circuit 5
Recorded in. The recorded signal is reproduced by the reproducing circuit 6. The output signal 10 from the reproduction circuit 6 is the input reproduction signal switching circuit 8 and the output signal 9 from the input switching circuit 4 is
, And output from the output terminal 7.

More specifically, the television signal is input to the input terminal 1 and demodulated by the tuner section 2. Either the demodulated signal or the signal input to the external input terminal 3 is switched by the input switching circuit 4. The switched signal 9 is output by the input reproduction signal switching circuit 8 when the VTR is not in the reproduction state.
It is connected to the output terminal 7. On the contrary, when the VTR is in the reproduction state, the signal 10 reproduced by the reproduction circuit 6 is connected to the output terminal by the input reproduction signal switching circuit 8.

[0005]

However, in the above-mentioned conventional configuration, when the VTR is in the recording state, only the recorded signal is output to the output terminal and the input terminal other than the terminal to which the recorded signal is input. There was a problem that it was impossible to monitor the input signal.

The present invention solves the above-mentioned conventional problems, and video recording capable of monitoring a signal input to an input terminal other than a terminal to which a recording signal is input even when the VTR is in a recording state. An object is to provide a reproducing device.

[0007]

In order to achieve this object, a video recording / reproducing apparatus of the present invention comprises a television signal input terminal and a tuner section for demodulating a television signal input from the television signal input terminal. A plurality of external input terminals, an input switching circuit that switches an output signal from the tuner unit and an external input signal input from the external input terminal, and a recording circuit that records the output signal from the input switching circuit, A reproducing circuit for reproducing the reproduced signal, an output terminal, an output signal from the tuner section, an external input signal input from an external input terminal, and an output signal from the reproducing circuit, and outputs the signal to the output terminal. And an output switching circuit.

[0008]

According to the present invention, with the above-described structure, the output switching circuit switches between the output signal from the tuner section, the external input signal input from the external input terminal and the output signal from the reproducing circuit, and outputs the signal to the output terminal. With such a configuration, even when the VTR is in the recording state, it is possible to monitor the signal input to the input terminal other than the terminal to which the recording signal is input.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. It should be noted that components having the same functions as those in FIG.

In FIG. 1, an output switching circuit 20 switches between an output signal from the tuner section 2, a signal input from the external input terminal 3 and an output signal 10 from the reproducing circuit 6, and outputs a signal to the output terminal 7. Is.

The television signal input from the television signal input terminal 1 is demodulated by the tuner section 2. The demodulated signal and the signal input from the plurality of external input terminals 3 are input switching circuit 4 and output switching circuit 2.
Enter in both 0s. Here, the signal 9 switched by the input switching circuit 4 enters the recording circuit 5 and is recorded.
The signal switched by the output switching circuit 20 is
Output to the output terminal 7. Therefore, the signal to be recorded and the signal to be output can be independently switched, so that an arbitrary input signal can be output.

As described above, according to the present embodiment, by providing the output switching circuit 20, even when the VTR is in the recording state, the signal being recorded is inputted to the input terminals other than the terminal to which the signal is inputted. The signal can be monitored.

[0013]

As described above, according to the present invention, a television signal input terminal, a tuner section for demodulating a television signal input from the television signal input terminal, a plurality of external input terminals, and the tuner section. Input switching circuit for switching the output signal from the input signal and the external input signal input from the external input terminal, a recording circuit for recording the output signal from the input switching circuit, a reproducing circuit for reproducing the recorded signal, and an output terminal And an output switching circuit for switching an output signal from the tuner section, an external input signal input from an external input terminal and an output signal from the reproducing circuit, and outputting a signal to the output terminal. Monitor the signal input to the input terminals other than the terminal to which the recorded signal is input even during recording In which it can be realized bets excellent video recording and reproducing apparatus can.

[Brief description of drawings]

FIG. 1 is a block diagram of a video recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional video recording / playback device.

[Explanation of symbols]

 1 Television signal input terminal 2 Tuner section 3 External input terminal 4 Input switching circuit 5 Recording circuit 6 Playback circuit 7 Output terminal 20 Output switching circuit

Claims (1)

Claim: What is claimed is: 1. A television signal input terminal, a tuner section for demodulating a television signal input from the television signal input terminal, a plurality of external input terminals, and an output from the tuner section. An input switching circuit for switching between a signal and an external input signal input from an external input terminal, a recording circuit for recording an output signal from the input switching circuit, a reproduction circuit for reproducing the recorded signal, an output terminal, and A video recording / reproducing apparatus provided with an output switching circuit for switching an output signal from a tuner section, an external input signal input from an external input terminal, and an output signal from the reproducing circuit and outputting the signal to the output terminal.