JPS6016791B2 - Video signal recording device - Google Patents

Description

[Detailed description of the invention] In a VTR (magnetic recording and reproducing device) with a tuner,
When mirroring a broadcast program, the tuner of the VTR must be set to that channel and recorded.

Therefore, even when watching green pictures while watching the TV, it is necessary to set the tuner of the VTR to the same channel as the TV channel. However, there are times when you suddenly want to record something while watching TV.

In such cases, the user sometimes forgets to check the tuner of the VTR, and when he tries to play it back later, he may be disappointed to find that a completely unrelated hair program has been recorded. In view of these points, the present invention is designed so that when a user performs sickle painting while watching television, the channel being received by the television is displayed in green.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a case where the present invention is applied to a television and a VTR having a built-in ET (electronic tuning) tuner.

In the figure, the signal from antenna 1 is directly connected to VTRI O
The signal is supplied to the tuner section 11 of the TV receiver 30 through the TV side contact T of the VTR/TV changeover switch 20.

The signal received by the tuner section 31 is supplied to the picture tube 33 through the video circuit 32. Further, a plurality of variable voltage sources 34a-34n are provided, and voltages from the voltage sources 34a-34n are applied to switches 35a-35a, respectively.
35n and diodes 36a to 36n to the ET terminal of the tuner section 31.

By setting the voltages of these voltage sources 34a to 34n at values corresponding to the ET voltages at which the tuner unit 31 receives the desired channel, any of the switches 35a to 35n is closed to select the desired channel. can be received. Also, diode 36
The voltage obtained through a to 36n is supplied to the tuner unit 11 through the normal side contact N of the normal recording/reverse program mirror changeover switch 40, and the tuner unit 11 performs the same reception as the tuner unit 31 described above.

Then, the signal received by the tuner section 11 is transmitted to the recording circuit 1.
2. The signal is supplied to the rotary head device 14 through the recording side contact R of the recording/reproduction changeover switch 13, is recorded on the magnetic tape T, and the signal reproduced from the tape T by the rotary head device 14 is passed through the reproduction circuit 15 and the RF generator 16. The signal is supplied to the VTR side contact V of the switch 20.

Further, a plurality of variable voltage sources 17a to 17n are provided, and voltages from the voltage sources 17a to 17n are supplied to the counter program side contact B of the switch 40 through switches 18a to 18n and diodes 19a to 19n, respectively. .

In this device, normally, the ET voltage selected by the switches 35a to 35n is supplied to the tuner sections 11 and 31.

Therefore, even if you are watching the television 30 in this state and suddenly decide to record it, the same channel that is being viewed on the television 30 will be recorded on the VTR 10. On the other hand, when the user does not watch the television 30 or when drawing line drawings for a program on the other side, the switch 40 is switched to contact B. In this way, the tuner section 11 has switches 18a to 18a.
The ET voltage selected at 18n is supplied, and the TV 30
The desired channel is keyed regardless of what is received on it. In this way, the key picture and the coin picture of the counter program that tend to be watched on TV are created, but according to the present invention, since the receiving channel of the TV and the receiving channel of the VTR are usually the same, Even if you suddenly come up with a key image while watching a movie, there is no need to check the tuner of the VTR, and even if you forget to check, there is no risk of recording another program. Note that in the above example, the television 30
ET fin pressure is supplied to the tuner section 11 of the VTRIO, the channel number of the TV 30 is detected, a remote control signal is formed using this signal, and the VTR is received using this remote control signal. Alternatively, the channel may be switched.

In addition, in the above example, the changeover switch 40 for normal and alternate programs
However, this switch 40 must always be switched to the normal side contact N, except when recording special programs.

Therefore, the switch 40 is configured to be reset to the normal side contact N in conjunction with the stop button or eject button of the VTR. FIG. 2 shows an example of a mechanism for this purpose, and in FIG. 2A, 41 is an operation button for operating the above-mentioned switch 40.

An operation bar 42 is provided in association with this button 41, and a matching pin 43 is provided at a predetermined portion of this bar 42. An engagement plate 44 is provided opposite the pin 43, and the engagement plate 44 is provided with an engagement portion 45 as shown in the figure, and is supported by a spring 46 to the right in the figure. Therefore, when the button 41 is pushed in, the engagement plate 44 is temporarily pushed to the left, and the engagement pin 43 and the engagement portion 45 are engaged as shown in FIG. 2B. Furthermore, 51 and 52 are an inject button and a stop button, and this button 5
1 and 52, a release portion 4 is attached to the engagement plate 44 as shown in the figure.
7 and 48 are provided. Therefore, button 51 or 5
By pressing 2, the engagement plate 44 is slid to the left, the engagement between the pin 43 and the engagement portion 45 is released, and the button 41 returns to its original position. In this way, VTRIO
By setting the switch to stop or eject, the switch 40 can be reset to the normal side, so there is no possibility that the switch 40 is accidentally set to the counter program side during normal use. Furthermore, “TV30 and VTRI
By using a two-wire type ET voltage conductor connecting the VTRI O and configuring it as shown in Figure 3, when the VTRI O is set to play, the channel of the TV 30 is switched to an open channel, for example, channel 2. be able to.

That is, in the figure, the diode 36a of the television 30
By inserting the switch jack 37 between ~36n and the tuner section 31 and inserting the plug 21, the signal path between them is cut off, and the conductor 22T of the plug 21 on the tuner section 31 side is connected to the changeover switch 23. are connected to the movable contacts of the plug 21, and the diodes 36a to 36n of the plug 21
The side conductor 22D is the first of the switch 40 and the switch 23.
The leads from the diodes 19a to 19n are connected to the second fixed contact b of the switch 40 and the switch 23, and the open channel switch 1
An on/off switch 24 is provided in parallel to 8b.

Then, link switches 23 and 24 to the play button,
When only the play button is pressed, the switch 23 is switched to contact b and the switch 24 is turned on. In this way, it is possible to record the same channel as that of the TV 30 using the same device as described above, and when the VTRIO is played back, the ET voltage corresponding to the two channels formed by the voltage source 17b is applied to the switches 24 and 23.
, the conductor 22T, the plug 21, and the jack 37 to the tuner section 31, the television 30 is switched to the open channel, and the reproduced signal from the VTRIO is received. In addition, in the above case, in order to prevent the switches 23 and 24 from being operated when only the play button is pressed, and the play button and the record button are pressed at the same time, it is necessary to It may be configured as shown in Figure 4. That is, in the figure, when the play button 53 is pressed, the first sliding plate 61 is slid to the right.

Further, the second super-moving plate 62 is biased to the right with respect to the sliding force Z plate 61 by a spring 63, and this biasing force is applied to the switches 23 and 2.
4 should be sufficient to switch. The end of the sliding plate 62 is inserted into the recess 64 of the operation bar of the button 54 when the line drawing button 54 is not pressed.
Therefore, when the button 54 is not pressed, the switches 23 and 24 are switched on the Numakin board 62, and when the button 54 is pressed, the play button 53 is switched.
The sliding plate 62 does not move even if you press the switch 23, 2.
4 never switches. The above example is a case in which a switch that is switched when only the play button is pressed is mechanically realized, but it can also be realized electrically using a relay.

That is, in FIG. 5, 65 is a normally-off contact that is turned on in conjunction with the play button, and 66 is a normally-on contact that is turned off when the green button is pressed. According to this configuration, only the play button is pressed. When the switch 65 is turned on, the switch 66 is turned on, so the relay 67 is driven, and when both the play button and the record button are pressed, even if the switch 65 is turned on, the switch 66 is turned off. Therefore, relay 67 is not driven.

Furthermore, FIG. 6 shows another example of the present invention, in which changeover switches 71 to 73 and switch 74 are in motion, and when the power of the VTRIO is turned on, they are switched to the positions shown by solid lines.

Therefore, the ET voltage that has been supplied to the tuner section 31 of the television 30 is now supplied to the tuner section 11 of the VTR 10, and the ET voltage corresponding to the two channels from the voltage source 17b is supplied to the tuner section 31 of the television 30. is,
Furthermore, the signal from the RF generator 16 is supplied to the tuner section 31 of the television 30. In other words, until now TV 3
A mirror image of the channel that was being viewed on TV 30 is performed, and EE monitoring of the recorded signal is performed on the television 30. Note that fine tuning of the tuner section 11 of the VTRIO can be performed in this state. Further, when performing recording of a counter program, the switches 71 to 74 are switched to positions opposite to those shown by solid lines.

In this way, on the television 30, the switches 35a to 35
The channel selected by n is received, and the channel selected by switches 18a to 18n is keyed in the VTRIO. If it is desired to perform monitoring in this case, the switch 75 is moved to the opposite position as shown in the figure, and the switch 35b of the television 30 is turned on. In this state, fine tuning of the tuner section of the VTR 10 can be performed.

The switch 75 is linked to, for example, a fine tuning knob of the VTR 10, and is switched only when operated, and returns to its original state when released. In this way, even if the user accidentally leaves the switch 76 on the monitor side, it is possible to prevent an accident in which the screen does not appear when the television 30 is turned on, for example. Further, the switch 71 is decoupled from the above-mentioned movement, and this switch 71 is connected to the VTRI.
It may be arranged so that the position is switched to the position indicated by the broken line at the same time as the power of O is turned off. Further, the switches 71 to 74 are biased to the position shown by the solid line, and even if they are switched to the position opposite to the broken line, they return to the position shown by the solid line when the power is turned off.

[Brief explanation of the drawing]

Fig. 1 is a system diagram of an example of the present invention, Fig. 2 is a diagram for its explanation, Fig. 3 is a system diagram of another example, Figs. 4 and 5 are diagrams for its explanation, FIG. 6 is a system diagram of yet another example. 10 is a VTR, 30 is a television receiver, and 40 is a reverse program cut-off switch. Figure 1 Figure 2 Figure 2 Figure 3 Figure 5 Figure 4 Figure 6

Claims (1)

[Claims] 1. A switch that detects the reception channel of the monitor receiver, switches the reception channel of the built-in tuner according to this detection signal, and cuts off the detection signal so that the built-in tuner can receive any channel. A video signal recording device provided.