JPH0413259A - Device for driving vtr with master and slave tapes - Google Patents

Abstract

PURPOSE:To easily reproduce a part of a master tape recursively with a slave tape by driving the master tape and the slave tape on a video tape with a mechanism driven independently, and detecting the presence/absence of the lug of the master tape. CONSTITUTION:When an endless slave tape T-1 is inserted to a VTR-1 and a tape with the lug as the master tape T-2 is inserted to a VTR-2, a CPU reads output from a lug detecting part 18 via an input port I-3, and turns on an analog switch 9 for a short time, and drives the slave tape T-1 in a recording state. Following that, the master tape T-2 is driven in the recording state. The observation of a recording content before recording can be performed by receiving the output with a remote control light receiving part 10 which sends out a first remote control signal, switching the VTR-1 from a recording mode to a reproduction mode, and viewing a broadcast program recorded on the slave tape T-1 on a monitor 24 via a video output terminal 5, a sound output terminal 6. In such a manner, a part of the master tape can be reproduced recursively.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a V
This relates to a TR drive device.

[Conventional technology]

Recently, various technical improvements have been made to video tape recorders.
It is used very effectively, but when recording and using a broadcast for learning or ordinary broadcasting, it is used to record the program being aired at that time, and to use a master tape that has already been recorded for learning purposes. The way to use it is different from when using it, especially when dubbing it for later reference or using it for learning, it is usually very difficult for the average person to operate it, Furthermore, there were extremely difficult problems when using the device in a dark place, such as among sick people or pets.

[Problem that the invention seeks to solve]

If you are recording a broadcast while watching TV and want to play back just a portion of it to confirm, use the VTR.
When one device is put into playback mode, the broadcast that was being recorded up to that point is interrupted. Also, if you are learning a learning tape, that is, a piece of nail folding, and you want to repeat only a part of it, even if you have dubbed it onto another tape, you will not be able to use it next time. When attempting to playback, the master tape advances forward, so that even after learning what has been dubbed, the tape has already advanced considerably.

[Means to solve the problem]

In view of the above-mentioned problems, the present invention has the master tape and sleeve tape of the videotape driven by a mechanism that can be driven independently. To provide a means for making it possible to extremely easily repeatedly reproduce a part of a master tape using a scrap tape by operating one or two buttons by detecting the presence or absence of a claw on the master tape. It is.

〔Example〕

The structure and operation of the embodiments of the present invention will be explained below.

In FIG. 1, VTR-1 is a video tape recorder for an endless cassette tape (hereinafter referred to as "slape tape T-1"), and only the main parts related to the present invention are shown. That is, the blade terminal, 6 is the audio output terminal, 7
is a cassette detection unit that checks whether the above-mentioned slave tape T-1 is inserted, PLAYI is a playback button,
RECl is a recording button, and S and 9 are analog switches. When the analog switch 8 is turned on, the same operation as when the reproduction button PLAYI is pressed is performed, and the scrape tape T-1 is driven in the reproduction mode via a driving means (not shown). Similarly, when the analog switch 9 is turned on, the slave tape T-1 is driven in the recording mode. PLAY2, RFe5.
A similar operation is performed for 5TOP2. 10 is a remote control signal receiving section.

VTR-2 is a video tape recorder for an end-shaped video tape cassette (hereinafter referred to as master tape T-2), and 11 is an antenna input terminal, 12 is an antenna output terminal, and 13 is a video tape recorder for, for example, 22 cameras. Input terminals, 14 are audio input terminals, 5 and 16 are the master tape T-
These are a video output terminal and an audio output terminal for applying the reproduction output of No. 2 to the VTR-1. 17 is a cassette detection unit for detecting the insertion of the master tape 'I'-2;
18 is a claw detection unit for detecting the presence or absence of a claw to prevent accidental erasure of the master tape 1'2, PLAY2 is a button for playing the master tape T-2, )LEC2 is a recording button, and 5TOP2 is for stopping. It's a button. Also 19~
Reference numeral 21 denotes an analog switch that performs the same function as the analog switch 8.9 described above. 23 is an antenna, 24 is a monitor, CPU is a one-chip microprocessor with a built-in program, Q-1 to O-5 are output ports, and I-1 to I-5 are input ports. .

Next, specific operations will be described in detail with reference to the flowchart in FIG. First, when the VTR-IK endless scrape tape T-1 shown in FIG. 1. In step 30 of FIG. 2, when this output is detected, the process moves to the next step 31.

Next, it is assumed that a master tape T2, which is an end-shaped tape with a claw to prevent accidental erasure, is inserted into the VTR-2. This insertion of T-2 is detected via the cassette detection section 17, and its detection output is output from the input port I- of the CPU.
4 is applied, which becomes affirmative in step 31, and the process moves to the next step 32. In step 32, a test is performed to see if the master tape T-2 has any claws.

This reads the output from the claw detection section 18 via the input port I-3. This is master tape T-2 with claws.
is used, so step 32 is affirmative and the process moves to step 33. In this step, the real analog switch 9 is turned on for a short time by a command from the output port O-1 of the CPU, and it performs the same operation as when the recording button REC1 is pressed, so the VTR-1 switches to recording mode and records the slave tape. Drive T-1 in recording mode. Subsequently, in step 34, the master tape T-2 is similarly driven in a recording state. Now switch the input of VTR-1 to video input terminal 3 and audio input terminal 4 using the switch (not shown).
It is assumed that the input of the VTR-2 has been previously switched to the tuner side, where the antenna input terminal 11 is activated, by a changeover switch (not shown). Therefore, the television broadcast received from the antenna 23 is recorded on the master tape T-2 via the antenna 11 and the cheese (not shown), and at the same time, the demodulated output from the cheese is sent to the video output terminal 15, Audio output terminal 1
6, and is recorded on the scrape tape T-1 via the video input terminal 3 and audio input terminal 4 described above.

During the recording of the two tapes mentioned above, steps 35 and 37 form a loop, so that the first infrared remote control signal (playback signal) and the second remote control signal (recording signal) are transmitted from the remote controller (not shown). signals). Therefore, if you want to view the previous recorded content that is currently being recorded, you can send the first remote control signal, which is received by the remote control signal receiver 10, and sent to the VTR via input port I-2, output port 0-2, and analog switch 8.
1 from the recording mode to the playback mode, and the broadcast program recorded on the slave tape T-1 (if T-1 can record 30 seconds, from 30 seconds before) is output to the video output terminal 5.
, can be viewed on the monitor 24 via the audio output terminal 6. During this time, the master tape T-2 continues to record the broadcast program.

Now, when you finish viewing the above-mentioned broadcast program and send a second remote control signal, this remote control signal is detected via the remote control signal receiver 10 and the input port I-2, and is detected via the output port 0-1 and the analog switch 9. The VTR-1 is switched to the recording mode via the tape T-1, and a new broadcast program is recorded on the slave tape T-1. These remote control operations can be executed repeatedly since steps 35 and 37 are looped.

In this embodiment, two types of remote control signals, the first remote control signal and the second remote control signal described above, are used.
Different types of remote control signals may be used in a toggle manner, with the odd-numbered remote control signal sent as the first remote control signal and the even numbered remote control signal sent as the second remote control signal.

Next, a case will be described in which a master tape T-2 is used for learning purposes in which a cassette that has already been recorded and has a canted tab to prevent accidental erasure is inserted. In this case, the above-mentioned step 32 becomes negative and the process moves to step 39. First, the slave tape T-1 is driven in recording mode, and in the next step 40, the master tape T-2 is driven in playback mode. Therefore, the playback output of T-2 is output from the video output terminal 15 and audio output terminal 16 on the VTR-2 side, and
It is recorded on the T-1 via the video input terminal 3 and audio input terminal 4 on the TR-1 side, and can be viewed on the monitor 24 via the video output terminal 5 and audio output terminal 6 at the same time.

During this time, steps 41 and 44 form a loop, so if there is a point that the user wants to repeat and learn while viewing on the monitor 24, the third remote control signal is sent. This remote control signal is received by the remote control signal receiver 25, and the input
) If detected via I-5, step 41 becomes affirmative and the process moves to step 42. At this point, the analog switch 21 is turned on for a short time in response to a command from the output port O-3, and the drive of the master tape T-2 is stopped. Or pose. Subsequently, the slave tape T-1 is switched from the recording mode to the playback mode via the analog switch 8 in response to a command from the output port O-2. In this playback mode, the playback output from T-1 is output from the video output terminal 5 and the audio output terminal 6 and can be viewed on the monitor 24.

When the viewing (learning) of T-1 is completed, the fourth remote control signal will be sent. When this fourth remote control signal is detected, step 44 becomes affirmative, and the T-1 is driven in the recording mode (step 45), and the stopped T-1 is driven in the recording mode (step 45).
2 in playback mode (step 46). As mentioned above, steps 41.44 are loops so that the operations described above can be repeated.

In addition, to stop all operations, use VTR-15VT.
Press the eject button (not shown) on R-2 and press T-1.
, take out the cassette of T-2, and connect the VTR-1 and VTR.
-2 can be turned off.

It goes without saying that the present invention is not limited to the above-described embodiments, and can be implemented with various modifications. For example, the third
As described above, the remote control signal and the fourth remote control signal can be shared by one type of remote control signal, and since the flow is divided into two in step 32, it is difficult to determine what purpose the remote control signal is used for. It is also possible to share the first to fourth remote control signals with one type of remote control signal.

In addition, in Fig. 1, the output of the remote control signal receiver 10.25 is read by the CPU, and then the output of the CPU is sent to the VTR-1.
, is controlling VTR-2, but VTR-1,
The remote control signal receiver built into the VTR-2 can be used as is, that is, without being read by the CPU.
It is also possible to directly control T-1 and T-2 from within VTft-2. However, in this case, the first to fourth remote control signals must be separate remote control signals.

The endless scrape tape T-1 used lasts for about 30 seconds, but even tape with ends lasts for about 30 seconds.
If it is about seconds, the rewinding time is very short, so if you automatically rewind after 30 seconds and start recording or playing from the beginning of the tape, it will essentially have the same function as an endless tape, so T-1 It is also possible to use a tape with an end.

〔Effect of the invention〕

In the past, the only way to repeatedly play a part of a master tape was to use expensive equipment and have it operated by an expert. The drive method must be different in order to reproduce parts of the parts repeatedly, depending on whether you are using one with the nails removed from the beginning to prevent erasure or for learning purposes. There wasn't. That is, in the former case, the recording operation continued, while in the latter case, it was not practical unless it was temporarily stopped until learning was completed.

In the present invention, both of these can be operated by a child or a sick person by pressing one or two buttons from the bed or even in a dark place, and the practical effect is great.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the above embodiment.

Claims (2)

[Claims] (1) When inserting a tape with a claw into a VTR tape cassette and inserting an endless tape or an end-shaped video tape as another scrap tape, detect whether or not the master tape has a claw.T-1 , T-2 both enter recording mode and are driven independently; T-1 enters playback mode when the first remote control signal is sent, and T-2 continues recording; A master and slave tape characterized in that when a remote control signal is sent, T-1 goes into recording mode and T-2 continues recording, and the first and second remote control signals can be used repeatedly. V with
TR drive device. (2) A master tape with ends and no claws is used, and an endless video tape or an end video tape is used as the scrape tape, and a means for driving each of these tapes independently, and the master tape is inserted. Finally, when it detects that there is no claw, the circuit automatically switches, and T-2 is in the regeneration state, and T-2 is in the regeneration state.
-1 is means for driving the T-1 to be in a recording state; when the third remote control signal is sent, T-1 is played back and T-2 is automatically stopped at that position; and a fourth Features include a means for setting T-1 to recording mode when transmitting a remote control signal and driving T-2 by starting playback again from the stopping point, and that the third and fourth remote control signals can be used repeatedly. V with master and scrape tape
TR drive device.