JPS606586B2 - magnetic recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic recording and reproducing device, which includes a pause channel having the same frequency as a video monitor channel,
It is an object of the present invention to provide a magnetic recording/playback device that can temporarily stop tape running by selecting the pause channel during recording or playback of a video tape recorder main body.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows the relationship between a television receiver and a video tape recorder main body, and FIGS. 2 and 3 show the configuration of the main parts of the present invention. First of all, in Fig. 1, 1 is a group of channel selection buttons, of which la is a selection nail for monitor channels.
Currently, the first channel and the second channel are set as this channel.

This is because in current magnetic coin picture playback devices, the frequency band of the television signal supplied from the video tape recorder body 2 to the television receiver is set to the first channel or the second channel during playback. It is for the sake of
Therefore, in a television receiver, by touching or pressing the channel selector la when a green screen is displayed, the television signal being recorded can be monitored, and the reproduced television signal can be displayed during playback. . Of course, if you press or touch another channel selection button while you are playing, you can watch the program on the other channel selected by the channel selection button without changing the recording operation. In this case, normally in this type of equipment there is a switch that switches between the signal coming from the antenna and the signal from the video tape recorder and supplies it to the television receiver, but this switch allows the antenna and television receiver to be loosened. . In addition, when lb is the tuning pin 0 for the pause channel, which is a feature of the present invention, when you touch this tuning nail lb, the same channel as when you operate the diamond tuning button la for the monitor channel,
That is, it is possible to receive a television signal that is being recorded or played back on the video tape recorder main body 2, and it is also possible to temporarily stop the running of the tape.
Reference numeral 3 denotes a display section provided corresponding to each channel selection button, and only the receiving channel section lights up and emits light.

Further, in FIG. 2, reference numeral 5 denotes a channel selection circuit of the television receiver, which has a pause channel terminal A that changes from the level to the low level when the pause channel selection button lb is operated. Of course, when this channel selection nail lb is operated, the television receiver will switch to channel 1 or channel 2.
Operates to receive channel television signals. Note that the pause channel terminal A returns to a high level when another channel is selected, like other channel terminals (not shown). 6 is a RAID drive circuit whose input terminal is connected to the pause channel terminal A, 7 is a pause relay circuit, and 8 is a pause output circuit.

Next, its operation will be explained.

First, to explain during recording, in this case, the monitor channel selection button la is operated, and the video signal being recorded is thereby displayed on the screen of the television receiver.

Here, when the pause channel selection button lb is operated to select a pause channel, an output signal appears at the pause channel terminal A of the tuning circuit 5, and this signal is passed through the relay drive circuit 6 to the pause relay circuit. 7, and the output of this relay circuit 7 is added to a pause output circuit 8. The output signal of this pause output circuit 8 is added to the pause circuit in the video tape recorder main body, and when this signal is added, the tape is sandwiched between the pinch roller and the tape is rotated during green printing. The tape running is stopped by stopping the rotation of the capstan that causes the tape to run. This stops the recording operation, but the image continues to be displayed on the screen of the television receiver. As mentioned above, when the pause channel selection button lb is operated, the television reception is performed so that when the monitor channel selection button la is operated, the same channel, that is, the first channel or the second channel, is received. This is because the machine works. In order to restore this key image operation, it is sufficient to operate the monitor channel selection button a. That is, as a result, the pause channel terminal A returns to its original state before the channel was selected, so the pause relay circuit 7 also returns, and since no signal is applied to the pause circuit in the video tape recorder main body 3, the tape can no longer be run. It will be restarted. On the other hand, for the reasons mentioned above, the image being recorded continues to be displayed on the television receiver. Therefore, if a commercial appears while recording the desired television signal and you do not want to record this commercial, you can stop recording the commercial by selecting the pause channel, while the commercial appears on the screen. is being displayed continuously, so when the monitor channel is selected at the same time as the commercial ends, the key image operation starts again, making it possible to record as desired except for the commercial portion.

On the other hand, when the pause channel selection button lb is operated during playback, the tape run is temporarily stopped by the same operation as described above, so that a still image is obtained on the screen of the television receiver.

To restart the playback operation, operate the monitor channel selection nail la in the same manner as above. Now, if we use a television receiver equipped with a channel selection device that can remotely control the channel selection operation and directly select the desired channel, the transmitter can transmit a pause channel selection signal. , it is possible to control the temporary stop of the tape from a remote location, which is extremely convenient in practice. Third
The figure shows the specific configuration of the main parts.

In the figure, a switching transistor whose base is connected to the pause channel terminal A via a resistor 11, and 12 a relay coil that switches a relay contact 13 by turning on and off the switching transistor 10,
Diodes 14 are connected in parallel. Reference numeral 15 denotes a switching transistor whose base is connected to one fixed terminal D of the relay contact 13 through a resistor 16, and whose collector B is connected to the pause circuit of the video tape recorder body 2.

Here, the transistor 5 operates to bypass the signal for driving the capstan in rotation when it is suitable. Therefore, when the pause channel is selected and the pause channel terminal A becomes low level, transistor 0 becomes conductive and current flows through relay coil 12.

As a result, the movable piece that was previously connected to terminal C is connected to terminal D, and transistor turtle 5 becomes conductive. As a result, the capstan stops rotating and the tape stops running. In this case, the running of the tape may be stopped by releasing the pressure of the pinch roller against the capstan while keeping the capstan rotating. Note that when the monitor channel is selected, the terminal A becomes high level, so the transistor 10 becomes non-conductive, and the movable piece of the relay contact 13 switches to C again. Therefore, transistor 15 becomes non-conductive and tape running is resumed. As explained above, according to the present invention, a pause channel that is the same as the monitor channel is provided, and by selecting this pause channel, the video tape recorder is temporarily stopped. Pausing can be controlled by a remote control device, making it possible to pause at a location remote from the video tape recorder.

Furthermore, during the sickle video, the recording operation can be temporarily stopped, while the image continues to be displayed on the television receiver, making it easy to cut commercials.
Furthermore, during playback, it is also possible to display a still image by pausing.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is an external view of the main parts of a magnetic mirror image reproduction device according to an embodiment of the present invention, FIG. 2 is a block diagram of the main parts of the same device, and FIG. It is a circuit diagram. 1... Tuning nail, la... Tuning nail for monitor channel, lb... Tuning button for pause channel, 2
...Video tape recorder body, 5...Tuning selection circuit, 6...
...Relay drive circuit, 7...Pause relay circuit
8...Pause output circuit. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1 Equipped with a video monitor channel for receiving the television signal being recorded or played back, and a pause channel that is the same channel as the video monitor channel, and by selecting this pause channel, the tape can be played. A magnetic recording/playback device characterized by a pause function.