JPH0831044A - Magnetic tape dubbing system and device therefor - Google Patents

Abstract

PURPOSE:To obtain a device capable of dubbing a recorded magnetic tape to such a magnetic tape as to be stored just in its recordable time that is shorter than the length of the original recorded magnetic tape. CONSTITUTION:A 1st magnetic tape 2 already recorded is once reproduced (including retrieval) by a magnetic recording and reproducing device 1, and a recording time for a recorded part to be dubbed from this tape is stored in a memory 6. Then, when this part is reproduced by a magnetic reproducible device 13, and is dubbed to a 2nd magnetic tape 17, a residual amt. of the magnetic tape 17 on the recording side is always operated by a system control microcomputer 5, and a recording mode is automatically changed over between a standard one and a long time one to meet a just required recording time from the contents of the memory 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a magnetic reproducing apparatus and a magnetic recording apparatus or a magnetic recording / reproducing apparatus to dubb a recorded magnetic tape onto a second magnetic tape having a shorter recording time. It relates to a method and a device.

[0002]

2. Description of the Related Art When dubbing a recorded first magnetic tape onto a second magnetic tape having a shorter recording time, the entire dubbing time is recorded in a slow tape speed long time mode or a plurality of dubbing times are recorded. Either use the tape of the book, or in the reserved recording system such as the magnetic recording / reproducing apparatus disclosed in Japanese Patent Laid-Open No. 63-261560, do not exceed the predetermined recording time of the magnetic tape, Either the remaining time of the magnetic tape is calculated, and the recording mode is automatically switched from the standard (SP mode) to the long time (EP mode) for recording.

FIG. 13 shows a magnetic recording / reproducing apparatus disclosed in Japanese Patent Laid-Open No. 63-261560.
Is a first and second magnetic recording / reproducing apparatus, 2 is a first magnetic tape, 3 is a control head, 4 is a CTL signal reading / writing circuit, and 5 is system control for controlling the operation of the first magnetic recording / reproducing apparatus 1. A microcomputer circuit, 7 is a rotary magnetic head for recording / reproducing signals of the magnetic tape 2, 8 is a reproduction signal processing circuit, 9 is a monitor output terminal for reproduction signals, 10
Is a supply-side tape reel rotation speed detection circuit, 11 is a winding-side tape reel rotation speed detection circuit, 12 is a tape remaining amount calculation circuit, 14 is a reproduction signal output terminal of the second magnetic recording / reproducing apparatus 13, and 15 is a first The recording signal input terminal of the magnetic recording / reproducing apparatus 1 is, 16 is a recording signal processing circuit, and 17 is a second magnetic tape.

Next, the operation will be described. The recorded first magnetic tape 2 is reproduced by the second magnetic recording / reproducing apparatus 13 for dubbing, and is input from the reproduction signal output terminal 14 to the first magnetic recording / reproducing apparatus 1 from the recording signal input terminal 15. Then, the recording signal processing circuit 16 performs dubbing recording on the second magnetic tape 17 by the rotary magnetic head 7. At this time, the dubbing time is determined by predicting the recording time of the previously recorded first magnetic tape 2, and secondly, the supply side tape reel rotation speed detection circuit 10 of the magnetic tape 17 and the winding side tape reel. The tape remaining amount calculation circuit 12 calculates the remaining amount based on the signal from the rotation speed detection circuit 11, and the system control microcomputer circuit 5 automatically controls the optimum recording mode of the first magnetic recording / reproducing apparatus 1.

[0005]

In the conventional recording reservation system shown in FIG. 13, the remaining amount of the magnetic tape is calculated so that the predetermined recording time does not exceed the usage time of the magnetic tape, and the recording mode is changed from the standard. Since it is designed to switch and record for a long time, it is good when the recording time is clearly known in advance, but as when dubbing a recorded magnetic tape, the exact recording time of the magnetic tape and In a magnetic tape dubbing system, in which the required recording time of the tape is not known by the recordable device to record, the remaining amount of the magnetic tape should not exceed the specified recording time. Dubbing was difficult with the above-mentioned conventional method of calculating the time and automatically switching the recording mode from the standard to a long time for recording.

According to the present invention, when dubbing a recorded magnetic tape, an accurate recording time of the magnetic tape and a required recording section time of the magnetic tape are grasped by a recordable device for recording, and the magnetic tape is recorded. The remaining time of the magnetic tape is calculated so that the recording time determined by the dubbing system does not exceed the usage time of the magnetic tape, and the recording mode is automatically switched between standard and long time for recording.

[0007]

A magnetic tape dubbing method according to the present invention is a method of dubbing a recorded first magnetic tape onto a second magnetic tape having a shorter recording time than the first magnetic tape. Play the magnetic tape once,
After the recording time of the recording portion to be dubbed is stored by the memory means, the first magnetic tape is reproduced by the magnetic reproducing device again while being dubbed and recorded on the second magnetic tape of the magnetic recording device. The remaining amount of the second magnetic tape is calculated, and the recording mode of the magnetic recording device is changed from the standard to a long time or a long time so that the recording time of the first magnetic tape stored in the memory means can be set. It was designed to automatically switch from to standard.

Further, the magnetic tape dubbing apparatus according to the present invention should be dubbed when the magnetic reproducing apparatus, the magnetic recording / reproducing apparatus connected to the magnetic reproducing apparatus, and the first magnetic tape reproducing by the magnetic recording / reproducing apparatus. Memory means for detecting and storing a recording time of a recording portion and a reproduction signal of the first magnetic tape by the magnetic reproducing device, and dubbing to the second magnetic tape by the magnetic recording and reproducing device, Based on the calculation means for calculating the remaining amount of the second magnetic tape, the calculation result of the calculation means and the stored contents of the memory means, the recording portion of the first magnetic tape can be stored in the second magnetic tape. And a control means for automatically switching the recording mode of the magnetic recording / reproducing apparatus from standard to long time or from long time to standard.

Further, a magnetic reproducing device, and a memory means for detecting and storing a recording time of a recording portion to be dubbed when reproducing the first magnetic tape by the magnetic reproducing device,
When the magnetic recording device connected to the magnetic reproducing device and the reproduction signal of the first magnetic tape by the magnetic reproducing device are received and dubbed to the second magnetic tape by the magnetic recording device, The calculation means for calculating the remaining amount of the magnetic tape of No. 2 and the calculation result of this calculation means and the stored contents of the memory means so that the recording portion of the first magnetic tape fits in the second magnetic tape, A control means for automatically switching the recording mode of the magnetic recording apparatus from standard to long time or from long time to standard is provided.

Further, the recording portion of the second magnetic tape is arbitrarily set by a magnetic recording / reproducing apparatus or a magnetic recording apparatus.

Further, the recording time of the second magnetic tape is divided into N equal parts, and the portion for dubbing recording is arbitrarily designated by the magnetic recording / reproducing apparatus or the magnetic recording apparatus.

Further, when the recording time of the recording portion of the first magnetic tape to be dubbed is detected by the magnetic recording / reproducing apparatus or the magnetic reproducing apparatus and the recording time is stored in the memory means, the first magnetic tape is operated at high speed. It is designed to be searched or played.

Further, when dubbing the first magnetic tape onto the second magnetic tape, the magnetic reproducing apparatus gives a signal for starting reproduction of the first magnetic tape to the magnetic recording / reproducing apparatus or the magnetic recording apparatus. The magnetic recording / reproducing apparatus or the magnetic recording apparatus starts recording by a signal.

When dubbing the first magnetic tape onto the second magnetic tape, the magnetic recording / reproducing device or the magnetic recording device gives a signal for starting recording on the second magnetic tape to the magnetic reproducing device. This signal causes the magnetic reproducing device to be the first
The reproduction of the magnetic tape is started.

When the recording time portion of the second magnetic tape is longer than the recording time of the recording portion of the first magnetic tape to be dubbed, the recording mode of the magnetic recording / reproducing apparatus or the magnetic recording apparatus is dubbed only in the standard mode. However, the fact that there is a recordable extra on the second magnetic tape is displayed.

When there are a plurality of first magnetic tapes, the recording time of the recording portion of each magnetic tape to be dubbed is entirely stored in the magnetic recording / reproducing apparatus or the memory means of the magnetic recording apparatus and the magnetic reproducing apparatus. It is a thing.

Furthermore, the power of the magnetic tape dubbing device is automatically turned off at the end of the dubbing.

[0018]

According to the magnetic tape dubbing system and apparatus of the present invention, the recorded first magnetic tape is reproduced by the magnetic recording / reproducing apparatus or the magnetic reproducing apparatus prior to the dubbing to record the recording portion to be dubbed. The time is detected, this is stored in the memory means, and the second
At the time of dubbing to the magnetic tape, the remaining amount of the second magnetic tape is calculated by the arithmetic unit, and the recorded portion of the first magnetic tape is stored in the second magnetic tape from the above memory contents.
The recording mode of the magnetic recording / reproducing apparatus or the magnetic recording apparatus is automatically switched between standard and long time.

The recording time of the recording portion to be dubbed may be directly stored in the memory means provided on the magnetic recording / reproducing apparatus side, or from the memory means provided on the magnetic reproducing apparatus side to the memory on the magnetic recording apparatus side. May be sent to the means.

The recorded first magnetic tape is reproduced by a magnetic recording / reproducing device or a magnetic reproducing device prior to dubbing to detect the recording time of the recording portion to be dubbed and store it in the memory means. When performing, this work can be performed in a short time by high-speed reproduction (including search).

[0021]

【Example】

Example 1. Embodiments of the present invention will be described below with reference to the drawings. 1 is a block diagram showing a first embodiment of the present invention.
Is a memory for storing the recording time of the recording portion of the first magnetic tape 2 to be dubbed. Since the other construction is almost the same as the conventional construction shown in FIG. 13, the same or corresponding portions are designated by the same reference numerals. Is attached and the description is omitted.

FIG. 2 is a flow chart showing the operation of the magnetic tape dubbing apparatus of the present invention, and FIG. 3 shows the state of the magnetic tape when the first magnetic tape is dubbed onto the second magnetic tape. 3A shows the recording time of the first magnetic tape, FIG. 3B shows the dubbing state I of the second magnetic tape, and FIG. 3C shows the dubbing state II of the second magnetic tape. Shows.

Next, the operation will be described. The operation of the magnetic tape dubbing apparatus in the block diagram of FIG. 1 will be described based on the flowchart of FIG. The recorded first magnetic tape 2 is inserted into the magnetic recording / reproducing apparatus 1, and the target dubbing start portion to end portion is reproduced (step S1). The dubbing time of the first magnetic tape 2 is read from the control track by the control head 3 as a CTL signal, and this is read out by the CTL signal reading / writing circuit 4
Is detected (step S2). The read CTL signal is calculated by the system control microcomputer circuit 5, the recording time of the dubbing portion of the first magnetic tape 2 is calculated and stored in the memory 6 (step S3).

Next, the first magnetic tape 2 is rewound to the dubbing start portion, inserted into the magnetically reproducible device 13, and the second magnetic tape 17 is inserted into the magnetic recording / reproducing device 1 (step S4). . Then, the first magnetic tape 2 is reproduced by the magnetic reproducing device 13, and the magnetic recording / reproducing device 1
To record a signal on the second magnetic tape 17 (step S
5). At this time, the remaining amount of the dubbing time of the second magnetic tape 17 and the first magnetic tape 2 stored in the memory 6
The recording time and the recording time are calculated by the system control microcomputer circuit 5, and the recording mode is changed from the SP mode (standard) to the EP mode (triple speed long time) as shown in FIG. As shown, from the EP mode to the SP mode, control is performed so that all recordings on the first magnetic tape 2 shown in FIG. 3A can be recorded on a shorter magnetic tape (step S6). Finally, the entire contents of the first magnetic tape 2 are dubbed onto the second magnetic tape 17, and the magnetic recording / reproducing apparatus 1
Then, the operation of the magnetically reproducible device 13 is stopped (step S7).

Here, the recording time of the first magnetic tape 2 is T1, the recordable time of the second magnetic tape 17 in SP mode is T2, the recording time in SP mode is TS, and the recording time in EP mode. Let TE be T1 = TS + TE .. T2 = TS + TE / 3 .. Formula, from the formula SP mode TS = (3T2-T1) / 2 ..... EP mode TE = 3 (T1 -T2) / 2, and the entire contents of the first magnetic tape 2 can be dubbed onto the second magnetic tape 17 as they are.

Example 2. FIG. 4 is a diagram showing a state of the magnetic tape when the first magnetic tape 2 in the second embodiment is dubbed on a certain section of the second magnetic tape 17, and FIG. The recording time of the first magnetic tape 2 is shown in FIG. 4B, which shows a state where the portion where the second magnetic tape 17 is present is dubbed.

This operation will be described. Example 2 is Example 1
2, when dubbing the contents of the first magnetic tape 2 onto the second magnetic tape 17 in steps S5 and S6 of the flowchart of FIG. The system control microcomputer circuit 5 designates the vacant portion of 17 to record the contents of the first magnetic tape 2. At this time, as shown in FIG. The remaining dubbing time of the magnetic tape 17 and the first magnetic tape 2 stored in the memory 6.
The recording time and the recording time are calculated by the system control microcomputer circuit 5, and the recording mode is changed from the SP mode to the EP mode as shown in FIG.

Example 3. In Example 2, FIG.
Set the designated section to be dubbed after the already recorded section, but the same applies to dubbing recording by designating an empty portion of the second magnetic tape 17 or an unnecessary recorded portion by insert recording or the like. It can be carried out.

Example 4. FIG. 5 is a diagram showing a state of the magnetic tape when the first magnetic tape 2 is dubbed into a predetermined section in the N equal parts of the second magnetic tape 17, and FIG. Program A for the first magnetic tape 2
5 (d) shows the state of dubbing on the designated portion of the second magnetic tape 17.

Next, the operation will be described. Example 4 is Example 1
2, when the contents of the first magnetic tape 2 are dubbed onto the second magnetic tape 17 in steps S5 and S6 of the flowchart of FIG.
No. 1 of the magnetic tape 17
The contents of the magnetic tape 2 are recorded, and if the time runs short as shown in FIG.
The system control microcomputer circuit 5 calculates the remaining dubbing time of No. 7 and the recording time of the first magnetic tape 2 stored in the memory 6, and changes the recording mode to the SP mode as shown in FIG. From EP mode to the first magnetic tape 2
It controls so that all the records of can be recorded.

Example 5. In Embodiments 1 to 4, the magnetic recording / reproducing apparatus 1 is operated at high speed in order to store the recording time of the first magnetic tape 2 in the memory 6 by modifying step S1 of the flowchart of FIG. , By searching or playing the magnetic tape 2 at high speed,
The recording time of the first magnetic tape can be stored in the memory 6 in a short time.

Example 6. In the above-mentioned Embodiments 2 to 5, the first magnetic tape 2 is reproduced by the magnetically reproducible device 13, and the recording time stored in the memory 6 is calculated by the system control microcomputer circuit 5 and set arbitrarily. Alternatively, when there is a time margin in the designated section, the operation of switching the recording mode in step S6 of the flowchart in FIG. 2 is stopped, recording is performed only in the standard mode, and if there is remaining time, that is displayed.

Example 7. FIG. 6 is a diagram showing a magnetic tape dubbing device according to a seventh embodiment. In FIG. 6, 18 is a system control microcomputer circuit of the magnetically reproducible device 13, and 19 is a control signal terminal controlled by the system control microcomputer circuit 18.
Reference numerals II and 20 denote control terminals I of the magnetic recording / reproducing apparatus 1, and other configurations are the same as those in FIG.

Next, the operation will be described. In the operation of step S5 of the flowchart of FIG. 2, at the same time when the magnetically reproducible device 13 starts reproduction, a command is issued from the system control microcomputer circuit 18 to output a reproduction start signal to the control terminal II19. The control terminal I 20 of the recording / reproducing apparatus 1 receives it, and the system control microcomputer circuit 5 puts the magnetic recording / reproducing apparatus 1 in the recording mode. By doing so, the reproducing side and the recording side can be synchronized.

Example 8. In the seventh embodiment, the system control microcomputer circuit 5 of the magnetic recording / reproducing apparatus 1 starts recording on the second magnetic tape 17, and at the same time, the control terminal I 20
Then, a command for a reproduction start signal is issued, the control terminal II 19 receives the command, and the system control microcomputer circuit 18 outputs a reproduction start signal so that the magnetically reproducible device 13 reproduces the first magnetic tape 2. By doing so, the reproducing side and the recording side can be synchronized as in the seventh embodiment.

Example 9. FIG. 7 shows a magnetic tape dubbing apparatus according to the ninth embodiment. In the figure, 21 is a CTL signal reading circuit of the magnetically reproducible device 13, 22 is a memory of the magnetically reproducible device 13, 23 is a data signal output terminal output from the system control microcomputer circuit 18, and 24 is a magnetic recording / reproducing device 1. This is a data signal input terminal.

Next, referring to the flowchart of FIG.
The operation of the device will be described. The recorded first magnetic tape 2 is inserted into the magnetically reproducible device 13 and reproduced from the target dubbing start portion to the end portion (step S8). Next, the dubbing time of the first magnetic tape 2 is detected by the control head 3 as a CTL signal from the control track by the CTL signal reading circuit 21 (step S).
9). The read CTL signal is calculated by the system control microcomputer circuit 18 to calculate the time of the dubbing portion of the first magnetic tape 2 and stored in the memory 22 (step S).
10).

Next, the first magnetic tape 2 is rewound to the dubbing start portion. At this time, the data in the memory 22 is transferred to the data signal output terminal 24 via the system control microcomputer circuit 18, and the system control microcomputer circuit 5 Is input to the memory 6. Further, the second magnetic tape 17 is inserted into the magnetic recording / reproducing apparatus 1 (step S11). Then, the first magnetic tape 2 is reproduced by the magnetically reproducible device 13, and at the same time, a signal is recorded on the second magnetic tape 17 inserted in the magnetic recording / reproducing device 1 (step S12).
At this time, the system control microcomputer circuit 5 calculates the dubbing time of the second magnetic tape 17, the remaining amount, and the recording time of the first magnetic tape 2 stored in the memory 6, and the recording mode is set as shown in FIG. All recordings on the first magnetic tape 2 shown in FIG. 3 (a) are shorter, from SP mode to EP mode as shown in FIG. 3B or from EP mode to SP mode as shown in FIG. The recording is controlled so that it can be recorded on the magnetic tape (step S13). Finally, the entire contents of the first magnetic tape 2 are dubbed onto the second magnetic tape 17 to stop the operations of the magnetic recording / reproducing apparatus 1 and the magnetic reproducible apparatus 13 (step S14).

Example 10. FIG. 4 is a diagram showing a state of the magnetic tape when dubbing the first magnetic tape 2 in the tenth embodiment onto a predetermined section of the second magnetic tape 17, but since it is similar to the second embodiment. The description is omitted.

Next, the operation will be described. The tenth embodiment is the same as the ninth embodiment except that step S in the flowchart of FIG.
12 and step S13, when dubbing the contents of the first magnetic tape 2 onto the second magnetic tape 17, as shown in FIG.
As shown in (b), the empty portion of the second magnetic tape 17 is designated and the contents of the first magnetic tape 2 are recorded.
At this time, as shown in FIG. 4B, when the time is insufficient, the remaining dubbing time of the second magnetic tape 17 and the recording time of the first magnetic tape 2 stored in the memory 6 are displayed. The system control microcomputer circuit 5 calculates and changes the recording mode from the SP mode to the EP mode as shown in FIG. 4B, and controls so that all recording on the first magnetic tape 2 can be performed.

Example 11. In Example 10, FIG.
In (b), the designated section to be dubbed is set after the already-recorded section. However, dubbing recording is performed by designating an empty portion of the second magnetic tape 17 or an unnecessary recorded portion by insert recording or the like. Good.

Example 12 FIG. 5 is a diagram showing a state of the magnetic tape when dubbing the first magnetic tape 2 in the twelfth embodiment to a predetermined section of the second magnetic tape 17 divided into N equal parts. Since it is the same as that of 4, the description thereof will be omitted.

Next, the operation will be described. The twelfth embodiment is the same as the ninth embodiment except that step S in the flowchart of FIG.
12 and step S13, when dubbing the contents of the first magnetic tape 2 onto the second magnetic tape 17, as shown in FIG.
As shown in (d), a portion of the second magnetic tape 17 divided into N equal parts is designated to record the contents of the first magnetic tape 2, and at this time, as shown in FIG. When it is insufficient, the remaining amount of the dubbing time of the second magnetic tape 17 and
The system control microcomputer circuit 5 calculates the recording time of the first magnetic tape 2 stored in the memory 6, and the recording mode is changed from the SP mode to the EP mode as shown in FIG. Control is performed so that all recording on the magnetic tape 2 can be performed.

Example 13. Example 9 to Example 12
8, the step S8 to the step S10 of the flowchart of FIG. 8 is changed to record the recording time of the first magnetic tape 2 in the memory 22 by using the magnetically reproducible device 1
3 is operated at high speed to search or reproduce the first magnetic tape 2 at high speed.

Example 14 Example 10 to Example 1
3, the system control microcomputer circuit 5 calculates the recording time stored in the memory 6 when the first magnetic tape 2 is reproduced by the magnetically reproducible device 13, and the time is allowed to be arbitrarily set or designated. If there is any, the operation of switching the recording mode in step S13 of the flowchart of FIG. 8 is stopped, recording is performed only in the standard mode, and if there is remaining time, it is displayed.

Embodiment 15 FIG. Example 9 to Example 14
9 is a diagram showing a magnetic tape dubbing apparatus according to the fifteenth embodiment, and its configuration is a combination of FIG. 6 and FIG. 7.

Next, the operation will be described. In the operation of step S12 in the flow chart of FIG. 8, at the same time when the magnetically reproducible device 13 starts reproduction, the system control microcomputer circuit 18 issues an instruction to output a reproduction start signal to the control terminal II 19, and the above-mentioned instruction The control terminal I 20 of the recording / reproducing apparatus 1 receives it, and the system control microcomputer circuit 5 puts the magnetic recording / reproducing apparatus 1 in the recording mode.

Example 16 In the fifteenth embodiment, the system control microcomputer circuit 5 of the magnetic recording / reproducing apparatus 1 is the second
At the same time as the recording start command is issued to the magnetic tape 17 of, the command for the reproduction start signal is issued from the control terminal I 20.
II19 receives the command and the magnetically reproducible device 13 is the first
A reproduction start signal is output from the system control microcomputer circuit 18 so as to reproduce the magnetic tape 2.

Example 17 FIG. 10 shows a magnetic tape dubbing apparatus according to the seventeenth embodiment. In the figure, 25 indicates an integrated magnetic recording enable device portion, 26 indicates an integrated magnetic reproduction enable device portion, and 27 indicates an integrated magnetic tape dubbing device.

FIG. 11 is a flowchart showing the operation of the seventeenth embodiment, and the operation of FIG. 10 will be described based on this flowchart. First, the recorded first magnetic tape 2
Is inserted into the magnetically reproducible device 26, and reproduction is performed from a target dubbing start portion to an end portion (step S15). Next, the CTL signal reading circuit 21 detects the dubbing time of the first magnetic tape 2 as a CTL signal from the control track by the control head 3 (step S16). The read CTL signal is calculated by the system control microcomputer circuit 18, and the recording time of the dubbing portion of the first magnetic tape 2 is calculated and stored in the memory 22 (step S17).

Further, the first magnetic tape 2 is rewound to the dubbing start portion, and the second magnetic tape 17 is inserted into the magnetic recordable device 25 (step S18). Further, the first magnetic tape 2 is reproduced by the magnetically reproducible device 26, and at the same time, the second magnetic tape 2 which is inserted in the magnetically recordable device 25 is regenerated.
A signal is recorded on the magnetic tape 17 (step S1)
9). At this time, the system control microcomputer circuit 5 calculates the remaining dubbing time of the second magnetic tape 17 and the recording time of the first magnetic tape 2 stored in the memory 22,
The recording mode is changed from SP mode to E as shown in FIG.
The P mode or the EP mode to the SP mode as shown in FIG. 3C is controlled so that all the recordings on the first magnetic tape 2 shown in FIG. 3A can be recorded on a shorter magnetic tape. (Step S20). Finally, the contents of the first magnetic tape 2 are all dubbed onto the second magnetic tape 17, and the operation of the magnetic tape dubbing device 27 of the magnetic recording enable device 25 and the magnetic reproduction enable device 26 which are integrated is stopped. (Step S21).

Example 18. FIG. 4 is a diagram showing a state of the magnetic tape when dubbing the first magnetic tape 2 in the eighteenth embodiment onto a predetermined section of the second magnetic tape 17, but is similar to the second embodiment. Therefore, the description is omitted.

Next, the operation will be described. The eighteenth embodiment is the same as the seventeenth embodiment except that the second magnetic tape 1 is processed in steps S18 and S19 of the flowchart of FIG.
When dubbing the contents of the first magnetic tape 2 to 7, the contents of the first magnetic tape 2 are recorded by designating an empty portion of the second magnetic tape 17 as shown in FIG. 4B. Then
At this time, when the time is insufficient as shown in FIG. 4B, the remaining dubbing time of the second magnetic tape 17 and the recording time of the first magnetic tape 2 stored in the memory 22 are set in the system. The control microcomputer circuit 5 calculates and changes the recording mode from the SP mode to the EP mode as shown in FIG. 4B, and controls so that all recordings on the first magnetic tape 2 can be recorded.

Example 19 In Example 18, FIG.
In (b), the designated section to be dubbed is set after the already recorded section, but the second magnetic tape 17 is used by insert recording or the like.
It is also possible to specify a vacant portion or unnecessary recorded portion for dubbing recording.

Example 20. In the operation of the magnetic tape dubbing device 27 including the magnetically recordable device 25 and the magnetically reproducible device 26 which are integrated, FIG.
9 is a diagram showing a state of the magnetic tape when dubbing the first magnetic tape 2 in FIG. 2 to a predetermined section in the N equal parts of the second magnetic tape 17, which is the same as that of the fourth embodiment. The description is omitted.

Next, the operation will be described. The twentieth embodiment differs from the nineteenth embodiment in step S1 of the flowchart of FIG.
9 and step S20, when dubbing the contents of the first magnetic tape 2 onto the second magnetic tape 17, as shown in FIG.
As shown in (d), the content of the first magnetic tape 2 is recorded by designating a certain portion of the second magnetic tape 17 divided into N equal parts, and at this time, as shown in FIG. If the shortage occurs, the system control microcomputer circuit 5 calculates the remaining dubbing time of the second magnetic tape 17 and the recording time of the first magnetic tape 2 stored in the memory 22 to determine the recording mode. As shown in FIG. 5 (d), the SP mode is changed to the EP mode, and control is performed so that all recording on the first magnetic tape 2 can be performed.

Example 21. Example 17 to Example 2
0, step S15 of the flowchart of FIG.
From step S17 to step S17, in order to store the recording time of the first magnetic tape 2 in the memory 22, the magnetically reproducible device 26 is operated at high speed and the first magnetic tape 2 is searched or reproduced at high speed. To do.

Example 22. Example 18 to Example 2
1, the system control microcomputer circuit 5 calculates the recording time stored in the memory 22 when the first magnetic tape 2 is reproduced by the magnetically reproducible device 26, and an arbitrarily set or designated section has a time margin. If there is any, the operation of switching the recording mode in step S20 of the flowchart of FIG. 11 is stopped, recording is performed only in the standard mode, and if there is remaining time, it is displayed.

Example 23. Example 17 to Example 2
2, the operation of the magnetic tape dubbing device 27 including the magnetically recordable device 25 and the magnetically reproducible device 26 integrated in FIG. 10 will be described. In the operation of step S19 of the flowchart of FIG. 11, the magnetic reproduction-enabled device 26 starts reproduction, and at the same time, the control signal is output from the system control microcomputer circuit 18 as a reproduction start signal, and the magnetic recording-enabled device 25 receives the signal, and The control microcomputer circuit 5 puts the magnetically recordable device 25 in the recording mode.

Example 24. In the twenty-third embodiment, the system control microcomputer circuit 5 of the magnetic recordable device 25 of the magnetic recordable device 25 and the magnetic tape dubbing device 27 of the magnetic reproducible device 26, which are integrated, records on the second magnetic tape 17. Simultaneously with the start command, a reproduction start signal command is issued by the control signal, and the system control microcomputer circuit 18 outputs the reproduction start signal so that the magnetically reproducible device 26 reproduces the first magnetic tape 2.

Example 25. FIG. 12 shows a second embodiment of the present invention.
5 shows an integrated magnetic recordable device 2
In the magnetic tape dubbing device 27 including the magnetic reproducible device 26 and the magnetic reproducible device 26, the same operation as in the fifteenth embodiment is performed.

Example 26. In the above magnetic tape dubbing device, it is possible to record a plurality of first magnetic tapes 2 on the second magnetic tape 17. At this time, dubbing is performed after the recording time of the recording portion of all the first magnetic tapes to be dubbed is stored in the memory means. 5 (a), (b), and (c) respectively show a plurality of first
FIG. 5D shows a state in which the above three first magnetic tapes 2 are recorded on one magnetic tape 17.

Example 27. In the twenty-sixth embodiment, the second magnetic tape 17 is divided into equal parts and recorded, but the second magnetic tape 17 may be divided into arbitrary sections and recorded if necessary.

Example 28. Examples 1 to 27
In the above, when the magnetic tape dubbing device finishes dubbing, the power of the device may be automatically turned off.

[0065]

As described above, according to the magnetic tape dubbing method and apparatus of the present invention, when dubbing a magnetic tape having a long recording time onto a short magnetic tape, all contents can be surely recorded without interruption. At the same time, since the reproduction is once performed and the necessary portion is designated and then the reproduction is started to perform the dubbing, it is not necessary to dub the unnecessary portion. At this time, since the portion of the magnetic tape to be recorded can be designated, dubbing recording can be performed on the magnetic tape in use while leaving the previously recorded portion. Further, since the magnetic tape is divided into N equal parts so that dubbing recording can be performed at an arbitrary position, one magnetic tape can be used for N texts.

Also, dubbing recording is performed by a reproduction-only device and a recording-only device, and a system control microcomputer circuit and a memory means are provided in both devices, so that a recorded magnetic tape and a dubbing magnetic tape are provided in each device. Since the recording time can be measured and dubbing recording can be done with the device attached, it is possible to save the trouble of replacing the magnetic tape.

Further, the recorded time of the recorded magnetic tape can be known in a short time by searching or reproducing the recorded magnetic tape at a high speed once and measuring the recording time of the portion to be dubbed. Therefore, the time required for dubbing can be shortened as a whole.

Also, at the start of dubbing recording, it is detected that the reproducing side device has started reproduction and the recording side device starts recording, or that the recording side device has started recording. By causing the device on the reproducing side to start the reproduction, the timing of the dubbing recording becomes accurate, and the dubbing without waste is possible.

If the dubbed portion of the magnetic tape has a longer time than the dubbing recording, recording is performed in the standard mode with good image quality and the remaining time is displayed. Tape can be used.

Further, by storing all the recording time of the recording portion to be dubbed of the plurality of recorded magnetic tapes in the memory means, the plurality of magnetic tapes can be formed into one dubbing magnetic tape at any length. Since it can be divided and recorded by dubbing, many magnetic tapes can be organized efficiently.

Furthermore, by automatically turning off the power when the dubbing recording is completed, it is not necessary for a person to be attached to the dubbing device from beginning to end until the end of dubbing.

[Brief description of drawings]

FIG. 1 is a block diagram showing a magnetic tape dubbing apparatus according to a first embodiment of the present invention.

2 is a flowchart showing the operation of the apparatus of FIG.

FIG. 3 is a diagram showing a state of a magnetic tape which is dubbed and recorded according to the first embodiment.

FIG. 4 is a diagram showing a state of a magnetic tape dubbed and recorded by a magnetic tape dubbing device according to a second embodiment of the present invention.

FIG. 5 is a diagram showing a state of a magnetic tape dubbed and recorded by a magnetic tape dubbing device according to a fourth embodiment of the present invention.

FIG. 6 is a block diagram showing a magnetic tape dubbing apparatus according to Embodiment 7 of the present invention.

FIG. 7 is a block diagram showing a magnetic tape dubbing apparatus according to Embodiment 9 of the present invention.

FIG. 8 is a flowchart showing the operation of the apparatus of FIG.

FIG. 9 is a block diagram showing a magnetic tape dubbing apparatus according to Embodiment 15 of the present invention.

FIG. 10 is a block diagram showing a magnetic tape dubbing apparatus according to Embodiment 17 of the present invention.

11 is a flowchart showing the operation of the apparatus of FIG.

FIG. 12 is a block diagram showing a magnetic tape dubbing apparatus according to Embodiment 25 of the present invention.

FIG. 13 is a block diagram showing a conventional magnetic tape dubbing device.

[Explanation of symbols]

1 magnetic recording / reproducing device, 2 first magnetic tape, 3 control head, 4 CTL signal reading / writing circuit, 5 system control microcomputer circuit, 6 memory, 7
Rotating magnetic head, 8 reproduction signal processing circuit, 9 monitor output terminal, 10 supply side reel rotation speed detection circuit, 1
DESCRIPTION OF SYMBOLS 1 Tape reel rotation speed detection circuit on winding side, 12 Tape remaining amount calculation circuit, 13 Magnetic reproducible device, 14 Reproduction signal output terminal, 15 Recording signal input terminal, 16 Recording signal processing circuit, 17 Second magnetic tape, 18 System control microcomputer circuit, 19 control signal terminal II, 20 control signal terminal I, 21 CTL signal reading circuit, 22 memory, 23 data signal output terminal, 24 data signal input terminal, 25 magnetic recordable device, 26 magnetic reproducible device, 27 Magnetic tape dubbing device.

Claims (11)

[Claims] 1. A magnetic tape dubbing method for dubbing a recorded first magnetic tape onto a second magnetic tape having a shorter recording time than the first magnetic tape, wherein the first magnetic tape is reproduced once and the recording to be dubbed is performed. After recording the recording time of the portion by the memory means, when the first magnetic tape is reproduced by the magnetic reproducing device again and dubbed and recorded on the second magnetic tape of the magnetic recording device, the second magnetic tape is used. Is calculated, and the recording mode of the magnetic recording device is automatically changed from standard to long time or from long time to standard so as to be within the recording time of the first magnetic tape stored in the memory means. The magnetic tape dubbing method is characterized in that it is switched selectively. 2. A magnetic tape dubbing device for dubbing a recorded first magnetic tape to a second magnetic tape having a shorter recording time than the magnetic reproducing device and a magnetic recording / reproducing device connected to the magnetic reproducing device. A memory means for detecting and storing a recording time of a recording portion to be dubbed when the first magnetic tape is reproduced by the magnetic recording and reproducing apparatus; and a reproduction signal of the first magnetic tape by the magnetic reproducing apparatus. When receiving and dubbing to the second magnetic tape by the magnetic recording / reproducing apparatus, the calculating means calculates the remaining amount of the second magnetic tape, the calculation result of the calculating means, and the stored contents of the memory means. , So that the recording portion of the first magnetic tape fits in the second magnetic tape, the recording mode of the magnetic recording / reproducing apparatus is changed from standard to long time,
Alternatively, a magnetic tape dubbing device comprising a control means for automatically switching from a long time to a standard. 3. A magnetic tape dubbing device for dubbing a recorded first magnetic tape to a second magnetic tape having a shorter recording time than the magnetic reproducing device and the first magnetic tape produced by the magnetic reproducing device. Memory means for detecting and storing a recording time of a recording portion to be dubbed during tape reproduction, a magnetic recording device connected to the magnetic reproducing device, and a reproduction signal of the first magnetic tape by the magnetic reproducing device. In response to the received data, the magnetic recording device calculates the remaining amount of the second magnetic tape when dubbing to the second magnetic tape, and the calculation result of the calculation means and the stored contents of the memory means. The recording mode of the magnetic recording device is changed from standard to long time or from long time to standard so that the recording portion of the first magnetic tape fits in the second magnetic tape. A magnetic tape dubbing apparatus comprising: a control unit that automatically switches. 4. The recording portion of the second magnetic tape is arbitrarily set by a magnetic recording / reproducing device or a magnetic recording device. Magnetic tape dubbing method or device. 5. The recording time of the second magnetic tape is divided into N equal parts, and a portion for dubbing recording is arbitrarily designated by a magnetic recording / reproducing device or a magnetic recording device. A magnetic tape dubbing system or apparatus according to claim 3. 6. The magnetic recording / reproducing apparatus or the magnetic reproducing apparatus detects the recording time of a recording portion to be dubbed on the first magnetic tape and stores the detected recording time in a memory means at high speed. Playback (including search)
The method according to any one of claims 1 to 5, wherein
A magnetic tape dubbing method or device according to any one of 1. 7. When dubbing the first magnetic tape onto the second magnetic tape, the magnetic reproducing apparatus gives a signal to the magnetic recording / reproducing apparatus or the magnetic recording apparatus to start reproduction of the first magnetic tape, 7. The magnetic tape dubbing system or apparatus according to claim 1, wherein the magnetic recording / reproducing apparatus or the magnetic recording apparatus starts recording by this signal. 8. When dubbing the first magnetic tape onto the second magnetic tape, the magnetic recording / reproducing apparatus or the magnetic recording apparatus gives the magnetic reproducing apparatus a signal to start recording on the second magnetic tape, and 7. The magnetic tape dubbing system or device according to claim 1, wherein the magnetic reproducing device starts reproducing the first magnetic tape in response to a signal. 9. The recording time portion of the second magnetic tape is first
If it is longer than the recording time of the recording portion of the magnetic tape to be dubbed, the recording mode of the magnetic recording / reproducing apparatus or the magnetic recording apparatus is dubbed only in the standard mode, and it is indicated that there is extra recordable area on the second magnetic tape. 9. The magnetic tape dubbing method or apparatus according to claim 1, wherein the magnetic tape dubbing method or apparatus is configured as follows. 10. When there are a plurality of first magnetic tapes, the recording time of the recording portion of each magnetic tape to be dubbed is stored in the magnetic recording / reproducing device or in the memory means of the magnetic recording device and the magnetic reproducing device. The magnetic tape dubbing system or apparatus according to any one of claims 1 to 9, wherein 11. The magnetic tape dubbing method or device according to claim 1, wherein the magnetic tape dubbing device is automatically turned off at the end of dubbing.