JPH1074346A - Device for recording and reproducing magnetic tape and method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a waste of a tape in use and to improve operability by providing a control track and a head, etc., for the purpose of providing a standby time without an output in reproducing a signal and providing a noninput recording part for the same period of time as the standby time between signal recording parts concerned. SOLUTION: A signal track 88, a head 26 for reproducing a signal from this track, a control track 8A recorded with control information for controlling traveling of the tape and the head 25 for reproducing the control information from this track are provided on the tape 8 and the device. This magnetic tape 8, etc., are driven by a driving unit 4, and at the reproducing time, a stopping time recorded on the control track 8A is recognized by a microcomputer 1 so as to control the operation and the stopping time of the tape 8 under reproduction. Simultaneously with reading and reproducing the signal on the track 8B, the signal is read out of the control track 8A, and when an operation stopping time recorded in this signal is read out, the drive of the tape is stopped and the output of the signal on the track 8B is stopped accordingly, so that the standby time without outputting this signal is controlled. Thus, a waste of the tape due to recording of a noninput is minimized.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage device, a VT
The present invention relates to a magnetic tape recording / reproducing apparatus and a magnetic tape recording / reproducing method for recording and reproducing various signals, such as an R and a tape recorder.

[0001]

2. Description of the Related Art A conventional magnetic tape recording and reproducing apparatus of this type has a magnetic track having a signal track for recording a signal to be reproduced, such as digital data in a storage device, image data in a VTR, and audio data in a tape recorder. A tape, a drive unit for running the tape,
It has a control unit that controls the device such as recording and reproducing signals, and an operation unit that causes the device to perform recording, reproduction, etc.The operation unit has a record key that records signals on tape, and a signal recorded on tape. It has a playback key to play back, a stop key to stop tape running, etc., and the operator operates various keys as necessary to record a signal to be played back on a magnetic tape or to play back a signal recorded on a magnetic tape Was to do.

[0002]

In the prior art, in order to have no output for a certain period of time between signals to be reproduced during reproduction, there is no other way than to perform non-input recording on a tape during recording. Was wasting.

[0003] The reason for this is that there is no control means for temporarily stopping the drive of the tape during reproduction and controlling to wait in a non-output state.

An object of the present invention is to eliminate the need for non-input recording when a non-output standby time is provided when reproducing a magnetic tape, thereby preventing waste of the tape and reducing the time and effort for non-input recording. An object of the present invention is to provide a magnetic tape recording / reproducing apparatus which does not require any processing.

[0005]

According to the magnetic tape recording / reproducing apparatus of the present invention, a control track other than a signal track is provided on a magnetic tape, and a stop time at the time of reproduction is recorded here. By controlling the operation and stop time of the tape, the standby time in the non-output state is controlled. As a result, waste of the tape can be prevented, and the operation of recording without inputting for a certain period of time is not required, thereby improving the operability.

More specifically, a head (26 in FIG. 1) for reproducing a signal to be reproduced from a signal track (8B in FIG. 1), and a control recording control information for controlling tape running. A head (25 in FIG. 1) for recording and reproducing control information from a track for use (8A in FIG. 1), a drive unit (4 in FIG. 1) for driving a tape or the like, and a control track recorded on the control track. A microcomputer (1 in FIG. 1) that recognizes the stop time during playback and controls the operation and stop time of the tape during playback.

At the time of reproduction, the signal is read from the control track at the same time as the reading and reproduction of the signal, and the operation stop time recorded therein is read. The tape drive is stopped and the signal output is stopped. Controls the output waiting time. This minimizes waste due to non-input recording on the tape.

According to the present invention, it is possible to obtain a magnetic tape recording / reproducing apparatus which prevents waste of a tape and has excellent operability.

[0009]

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a magnetic tape recording / reproducing apparatus according to the present invention. The device is controlled by the microcomputer 1. The operator sets a stop time from the operation unit 2, and the stop time is displayed on the display unit 3. When recording or reproducing a signal on the magnetic tape, a command to record control information is issued from the operation unit 2 at a position where it is to be stopped. During recording, the set stop time is recorded on the control track 8A of the magnetic tape 8 by the head 25 of the recording unit 7 through the microcomputer 1 and the control signal recording / demodulating unit 6. At this time, the signal is continuously recorded or a signal from the reproduced signal recording / reproducing unit 5 is recorded by the head 26 without input for a certain period. When a control information recording command is issued from the operation unit 2 during signal reproduction, the set stop time is recorded on the control track 8A in the same manner as when recording, and the signal output is not output for the set time. And the drive unit 4 is controlled to stop the magnetic tape 8 for a certain period.

FIG. 2 is a perspective view of the entire cassette tape 9 in which the magnetic tape 8 is stored. The magnetic tape 8 is partially exposed on the side surface of the cassette tape 9.

FIG. 3 is a plan view showing an example of the arrangement of signal tracks on the magnetic tape 8. Control tracks 8A and 8D are arranged outside, and signal tracks 8B and 8C are arranged inside.

FIG. 4 is a plan view showing a recording state on the magnetic tape 8. A signal recording unit 8G is provided on the signal track 8B.
There is a control information recording unit 8E that records stop control information at a position corresponding to the time T1 on the control track 8A. Similarly, the next signal recording section 8H is located on the signal track 8B, and the control information recording section 8 which has recorded stop control information at a position corresponding to the time T2 on the control track 8A.
There is E.

FIG. 5 is a perspective view showing the outer shape of the entire apparatus.

The magnetic tape recording / reproducing apparatus 10 has a cassette tape storage section 11, a display section 12, and an operation section 13. The operation unit 13 causes the ten key for temporarily inputting the stop time, the clear key 14 for clearing, the setting key 15 for storing the temporary input stop time, and the recording of the stored stop time on the control track of the magnetic tape. Marking key 1
6 and a tape operation key.

At the time of recording or reproduction, the following operation is performed to record control information. First, press the record key 17 and the play key 18 at the same time to start recording.
Press the pause key 19 or the stop key 24 to stop the tape running. Next, the stop time is input using the numeric keypad, the setting key 15 is pressed and stored in the storage unit 20, and then the marking key 16 is pressed. As a result, the tape runs for a predetermined time, and control information is recorded on the control track. After these operations, signal recording is restarted.

When the previously set and stored set time is used as it is, simply by pressing the marking key 16, control information based on the set time stored in the storage unit is recorded. This makes it possible to start recording immediately.

FIG. 6 is a signal diagram schematically showing control information recorded on a control track. Here the operator
It is assumed that a stop time is set at time T1 on the magnetic tape shown in FIG. In FIG. 4, the control signal recorded in the control information recording section 8E on the control track is a 14-digit digital value, and the digital value includes a start section 21, a data section 22, and an end section 23. For example, the start unit 21 is (10), the end unit 23 is (01),
The data section 22 is set to be a 10-bit binary number. If the setting value is 900 seconds, for example,
Expressed as a binary number of bits (0111000010)
Is applied to the data section 22 as shown in FIG.

Although the numerical value in seconds is used as the numerical value to be set, it may be a numerical value in arbitrary time units.

The operator may freely set the unit time so that the entire unit can be shortened and expanded at a constant rate.

Alternatively, the control signal may be a signal indicating only stop, and the tape running may be started by pressing a key on the operation section.

[0022]

As described above, according to the present invention, the stop time is recorded on the control track provided separately from the signal track, and the standby time is thereby controlled during reproduction.
When reproducing a magnetic tape, it is possible to make a non-output standby time without recording the same input without the same time, thereby preventing waste of the tape, improving the operability without the trouble of recording without input. .

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a magnetic tape recording / reproducing apparatus according to the present invention.

FIG. 2 is a perspective view of the entire cassette tape.

FIG. 3 is a plan view showing an example of the arrangement of signal tracks on a magnetic tape.

FIG. 4 is a plan view showing a recording state on a magnetic tape.

FIG. 5 is a perspective view showing the outer shape of the entire magnetic tape recording / reproducing apparatus of the present invention.

FIG. 6 is a signal diagram schematically showing control information recorded on a control track.

[Explanation of symbols]

 Reference Signs List 1 microcomputer 2 operation unit 3 display unit 4 drive unit 5 reproduction signal recording / reproduction unit 6 control signal recording / demodulation unit 7 recording unit 8 magnetic tape 8A, 8D control track 8B, 8C signal track 8E, 8F control information recording unit 8G , 8H signal recording section 9 cassette tape 10 magnetic tape recording / reproducing apparatus 11 cassette tape storage section 12 display section 13 operation section 25, 26 head

Claims (5)

[Claims] 1. A first head for reproducing a signal to be reproduced from a signal track, and a second head for reproducing control information for controlling tape running from the control track.
A magnetic tape recording / reproducing apparatus, comprising: a head for driving the tape; a drive unit for traveling the tape; and a control unit for recognizing the control information recorded on the control track and controlling the tape traveling during reproduction. 2. An operation unit for inputting and setting the control information by an operator. The operation unit includes a pause key for stopping tape running, a numeric keypad, a setting key for storing a value input from the numeric keypad, and a storage key. 2. The magnetic tape recording / reproducing apparatus according to claim 1, further comprising a marking key for recording control information based on the set value on a control track. 3. The magnetic tape recording / reproducing apparatus according to claim 1, wherein the control information includes a stop time for temporarily stopping tape running. 4. A driving unit for running a tape,
In a magnetic tape recording and reproducing apparatus for reproducing a magnetic tape having a signal track for recording a signal to be reproduced and a control track for recording control information for controlling tape travel, the control information is demodulated and demodulated. A magnetic tape recording / reproducing method, wherein a tape running during reproduction is controlled based on the obtained control information. 5. The control information is control information including a stop time for temporarily stopping the tape running, and temporarily stops the tape running for a specified stop time when demodulating the control information during signal reproduction. 5. The magnetic tape recording / reproducing method according to claim 4, wherein: