JPH04278201A - Magnetic recording and playback apparatus - Google Patents

Abstract

PURPOSE:To provide a magnetic recording and playback apparatus which extremely simplifies, on the occasion of selectively recording an input signal source of a plurality of channels, the operation for confirming the other input signals with a display means during the recording of a certain input signal and simultaneously records an input signal of the contents being displayed on the display means by setting the recording mode. CONSTITUTION:A magnetic recording and playback apparatus comprises a plurality of input terminals 1, 2, selection switches 3, 4 for selectively switching input signals of a plurality of channels applied to the input terminals, a recording and playback means for recording output signals of the switch 3 and a selection switch 9 for selectively switching an output signal from the switches 3, 4 and leads such output to the display means, whereby the switch 3 fixes the selected input terminal, when the recording and playback means is set to the recording condition, until the apparatus stops the recording mode, the switch 4 operates to freely select the input terminals, and the selection switches 3, 4 operate interlockingly while the apparatus is se to the mode other than the recording mode.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to a magnetic recording/reproducing device, and in particular, the present invention relates to a magnetic recording/reproducing device, in which input signals of multiple channels can be freely and selectively switched and guided to a display means regardless of recording or non-recording. The present invention relates to a magnetic recording/reproducing apparatus having a switch configured to record an input signal of the content currently displayed on the display means whenever the present invention is performed.

0002

[Prior Art] In recent years, in the field of video equipment, VTRs,
The number of signal sources to be recorded, such as video disks, satellite broadcasting, CATV, family computers, etc., is increasing, and there is a need for a magnetic recording/reproducing device that can efficiently switch and record among these signal sources.

[0003] A conventional household magnetic recording/reproducing device will be explained below. FIG. 3 shows a conventional home magnetic recording and reproducing apparatus, and shows the signal flow when the input signal is two channels. In FIG. 3, 1 is a first input terminal to which input signal A is applied, and 2 is a second input terminal to which input signal B is applied. 3 is a changeover switch for input signals A and B applied to input terminals 1 and 2; 5 is a recording circuit, 6 is a reproducing circuit, 7 is a recording and reproducing head, and 8 is a magnetic tape. Reference numeral 11 denotes a switch for switching between the recording signal C selected by the changeover switch 3 and the reproduction signal E from the reproduction circuit 6, and is driven in conjunction with the mode switching operation knob of the magnetic recording and reproduction device. side, and in playback mode it can be switched to the PB side. 12 is an output terminal, and 25 is a display means. 30 shows the entire conventional magnetic recording/reproducing device.

[0004] In the above configuration, now the first input terminal 1
Considering the case of recording input signal A applied to the magnetic tape 8, when the switch 3 is switched to select the first input terminal side, the selected recording signal C is input to the recording circuit 5, and the magnetic tape 8 is Input signal A is recorded via 7. The recording signal C is also connected to the switch 11 at the same time, but since it is currently in recording mode, the switch 11 is connected to the REC/REC signal.
The STOP side is selected, and its output signal F is input to the output terminal 12, and from the output terminal 12 to the display means 25. In this case, the input signal A, the recording signal C, and the output signal F become signals with the same content and are displayed on the display means 25. During playback, the signal recorded on the magnetic tape 8 is input to the playback circuit 6 via the head 7, the playback signal E from the playback circuit 6 is input to the output terminal 12 via the switch 11, and is displayed from the output terminal 12. It is input to means 25. In this case, the reproduction signal E is displayed on the display means 25.

[0005]

However, in the conventional configuration described above, when the input signal A is being recorded, the switch 3 is switched to display the input signal B on the display means 25.
When trying to check the contents of input signal B, magnetic tape 8
The content recorded in the input signal B also becomes the input signal B, which poses a problem. Therefore, with this configuration, the input signal A is transferred to the magnetic tape 8.
If you want to check the contents of the input signal B while recording it, you can disconnect the input signal B from the second input terminal, disconnect the output signal F from the output terminal 12 from the input terminal of the display means 25, and check the input signal B. input into the display means 25, or require complicated wiring and changeover switches corresponding to those operations. Even if you add complicated wiring and a changeover switch similar to the above operation, this changeover switch and switch 3 will not operate in conjunction with each other, so if you want to record the input signal currently displayed on the display means, you must After confirming the selection in step 3 and switching as necessary, you must switch to recording mode.

[0006] The present invention solves the above-mentioned conventional problems, and at the same time greatly simplifies the operation for checking other input signals while recording an input signal of one channel. It is an object of the present invention to provide a magnetic recording/reproducing device with extremely excellent operability, which is configured so that when an input signal of the content displayed on the device is desired to be recorded, the signal can be recorded by simply switching to the recording mode. .

[0007]

[Means for Solving the Problems] In order to achieve this object, the magnetic recording/reproducing apparatus of the present invention is capable of recording multiple channels without changing the input signal being recorded, whether during recording or not. It has a switch for freely and selectively switching the input signal and leading it to the display means, and the switch is operated in conjunction with the switch for selectively switching the input signal for recording except during recording. It is composed of

[0008]

[Operation] With this configuration, the switch for switching the input signal for recording and the switch for switching the signal for displaying on the display means operate in conjunction with each other, except when recording.
If you switch to recording mode at the start of recording, the input signal that is currently displayed on the display will be recorded. By selecting the input signal switching switch for displaying on the display means, you can check the contents of input signals of multiple channels other than the input signal being recorded without changing the input signal being recorded. This makes it possible to reliably record input signals with extremely simple operations, and to check other input signals during recording without complicated operations.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of essential parts of an embodiment of the present invention, showing the signal flow when input signals are of two channels. In FIG. 1, numeral 20 indicates the entire magnetic recording/reproducing apparatus of the present invention. 1 is a first input terminal to which input signal A is applied, and 2 is a second input terminal to which input signal B is applied. 3 is a first selector switch that selectively extracts one of the input signals A and B applied to the input terminals 1 and 2; 5 is a recording circuit;
6 is a reproducing circuit, 7 is a recording and reproducing head, and 8 is a magnetic tape. Reference numeral 4 indicates input signals A and B applied to input terminals 1 and 2 similarly to the first changeover switch 3.
This is a second selector switch that selectively extracts one of the following. Reference numeral 9 denotes a third changeover switch that changes over the signal C from the first changeover switch 3, the signal D from the second changeover switch 4, and the playback signal E from the playback circuit 6, and is used for mode switching operation of the magnetic recording and playback device. It is driven in conjunction with the knob, and is selectively connected to the STOP side in the stop mode, to the PB side in the playback mode, and to the REC side in the record mode. 10 is a display means for displaying the signal F from the third changeover switch 9. Reference numeral 13 denotes a switch configured to interlock the first changeover switch 3 and the second changeover switch 4 except during recording, and release the interlocking during recording. This switch 13 can be realized by configuring it as shown in FIG. 2, for example. In FIG. 2, A and B are input signals, 3 and 4 are first and second changeover switches for selectively extracting the input signals, and C and D are output signals of the changeover switches 3 and 4. It has the same configuration as FIG. 1. Reference numeral 21 denotes an input terminal for a control signal for switching the first changeover switch 3, to which a control signal G is applied. 22 is an input terminal for a control signal for switching the second changeover switch 4, and a control signal H is applied thereto. I is an input switching signal for switching the changeover switches 3 and 4. In such a configuration, the switch 13 is switched to the STOP/PB side except when recording.
The control signals G and H both have the contents of the input switching signal I, and the first and second changeover switches 3 and 4 are switched in conjunction. During recording, the switch 13 is switched to the REC side, and the control signal H becomes the content of the input switching signal I, but the control signal G is fixed at the content of the input switching signal I at the start of recording, regardless of the content of the input switching signal I. be done.

The operation of the magnetic recording/reproducing apparatus constructed as above will be explained with reference to FIG. 1. Now, if we consider the case of recording input signal A applied to input terminal 1, first, in the STOP state before recording,
The first selector switch 3 is switched to select the input terminal 1 side. The signal C selected by this first changeover switch 3
becomes the input signal A and is input to the recording circuit 5 and simultaneously input to the third changeover switch 9. Since we are not in the recording mode yet, the operation of the second changeover switch 4 is linked to the first changeover switch 3 via the switch 13 and selects the input terminal 1 side, so the second changeover switch 4 selects the input terminal 1 side. The resulting signal D becomes the input signal A and is input to the third changeover switch 9. Since the third changeover switch 9 has selected the STOP side, the selection signal F becomes the input signal A and is input to the display means 10, and the input signal A is displayed on the display means 10. When the recording mode is set in this state, the input signal A input to the recording circuit 5 is recorded on the magnetic tape 8 via the recording head 7. At the same time, since it is in the recording mode, the second changeover switch 4 is disconnected from the first changeover switch 3 via the switch 13, and the third changeover switch 9 is set to RE.
Switched to C side. Therefore, by switching the second changeover switch 4 while continuously recording the input signal A, it becomes possible to easily check the input signal B on the display means 10. When the STOP mode is set again, the first changeover switch 3 and the second changeover switch 4 are switched to switch 1.
3 and a third changeover switch 9
is switched to the STOP side. Therefore, the input signal selectively switched by the first changeover switch 3 is displayed on the display means 10.
In addition, when the STOP mode is changed to the recording mode, the input signal currently displayed on the display means 10 can be recorded without erroneous recording. When the reproduction mode is selected, the output of the reproduction head from the magnetic tape 8 is inputted to the reproduction circuit 6 via the reproduction head 7, and the reproduction signal E thereof is inputted to the third changeover switch 9. Since it is playback mode, the third selector switch 9 is set to P.
The output signal F is switched to the playback signal E.
is input to the display means 10, and the reproduced signal E is displayed on the display means 10.

[0012] Furthermore, although the above embodiments have shown the case where the input signal has two channels, the present invention is effective even when the input signal has multiple channels. That is, the greater the number of input signals, the greater the effect of the present invention.

[0013]

As described above, the present invention provides a display means for freely and selectively switching input signals of a plurality of channels without changing the input signals being recorded, regardless of whether recording is being performed or not. has a switch for guiding the
Since this switch is configured to operate in conjunction with a switch that selectively switches the input signal for recording at times other than when recording, if you switch to recording mode at the start of recording, the current display will be displayed on the display means. At the same time, the switch that changes the input signal to be recorded is fixed during recording, so the input signal other than the input signal being recorded is recorded without changing the input signal being recorded. By selecting the input signal contents of the other multiple channels using the switch that changes the input signal to be displayed on the display means, the contents of the input signals can be confirmed on the display means, and the input signal can be confirmed with extremely simple operation. This makes it possible to realize an excellent magnetic recording and reproducing apparatus that can record and check input signals of other plural channels during recording without complicated operations or wiring.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of main parts of a magnetic recording/reproducing device according to an embodiment of the present invention.

[Figure 2] Block diagram showing main parts of the embodiment

[Figure 3] Block diagram of main parts of a conventional magnetic recording/reproducing device

[Explanation of symbols]

1 First input terminal 2 Second input terminal 3 First changeover switch 4 Second selector switch 5 Recording circuit 6 Regeneration circuit 7 Recording/playback head 8 Magnetic tape 9 Third changeover switch 10 Display means 13 Switch 20 Magnetic recording and reproducing device of the present invention

Claims (1)

[Claims] 1. A plurality of input terminals, a first changeover switch that selectively switches input signals of a plurality of channels applied to the input terminals; a second changeover switch that selectively changes over the applied input signals of the plurality of channels;
a recording/reproducing means for recording an output signal of the first changeover switch, an output signal from the first changeover switch, an output signal from the second changeover switch, and an output signal from the recording/reproduction means; A third changeover switch is provided which selectively switches to lead to the display means, and when the recording and reproducing means is in the recording state, the first changeover switch has its selection input terminal connected until the recording and reproducing means stops the recording state. the second selector switch is operated so that the selection input terminal can be switched freely, and the first and second selector switches are operated in conjunction when the recording/reproducing means is in a state other than recording. A magnetic recording/reproducing device comprising: