JPH05307792A - Magnetic tape device - Google Patents

Abstract

PURPOSE:To provide a magnetic tape device capable of searching the program of a desired music at the time of reproduction after re-recording and detecting the smooth program number, or the like, and also capable effectively recording to the tape, by rewinding or feeding the specified amount of magnetic tape. CONSTITUTION:When the re-recording is performed from the midst of the magnetic tape represented by an R-DAT, an instruction key (recording pose key) to instruct the transfer to the recording state is pressed. Sub-code information such as the program number, absolute elapsed time, start ID, read-in signal, etc., recorded on the sub-areas 44 which are provided at both sides of plural tracks 41 formed on the magnetic tape 22, are read out. The location of a magnetic head is judged, then the magnetic tape is unwound or fed to the back and forth of each code area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic tape device for digitally recording signals such as music pieces on a magnetic tape.

[0002]

An apparatus for digitally recording data on a predetermined track of a magnetic tape has been put into practical use, for example, R-DAT.
(Rotating Digital Audio Tape Recorder) system. This digital magnetic tape device, unlike conventional analog recording, has less signal deterioration due to recording and playback, so high-density recording is possible, as well as follow-up recording,
Alternatively, there is an advantage that various kinds of editing such as high-speed search and music selection using a sub area described later can be easily performed. Therefore, such a digital magnetic tape device can be applied not only to audio recording such as the above-mentioned R-DAT but also to recording and reproducing of graphics and other digital data.

In a magnetic tape device represented by such an R-DAT, a so-called helical scan system is generally used in which a rotating head scans the running magnetic tape obliquely. In this method, a long linear track slightly inclined with respect to the tape running direction is formed on the magnetic tape. Therefore, there is an advantage that the magnetic tape and the head can be surely brought into contact with each other while the tape is running stably, and the rotation speed of the rotary head can be relatively lowered by using the large-diameter drum. A track in such a helical scan system generally includes a PCM (main) area for digitally recording data and a sub area for digitally recording a subcode (or subdata) indicating the characteristics of the data. It has a tape format, and data is recorded by sequentially forming this on a magnetic tape. The PCM data is managed by the sub code recorded in the sub area for each track. For example, when the recorded data is digital data of a plurality of music pieces, information such as the program number, absolute elapsed time, start ID, etc. of each piece of music is recorded in the subarea of the required track. Here, each of these subcodes will be briefly described.

First, the program number refers to a number sequentially written in a sub-area of a track with 11 bits per recording for 9 seconds (300 frames at the beginning of the song) from the beginning of the song. Therefore, a desired program can be selected by sequentially searching this.

The absolute elapsed time indicates the elapsed time from the beginning portion of the tape to each track, and is recorded in the sub areas of all tracks. This makes it possible to know the absolute position of each program on the tape during various edits and high-speed searches. The start ID is one of the most important subcodes and is used to find the beginning of each song. This start ID is normally recorded in the sub-area of each track with 1 bit per recording for 9 seconds (300 frames of the beginning of the music) from the beginning of the music. Here, one frame refers to two tracks formed by two heads provided on a rotating drum during one rotation. Generally, the number of rotations of the drum during recording and reproduction is 2000 rpm, Since the cycle is 30 ms, the start ID is recorded in the sub area for 9 seconds.

Next, the lead-in area and the lead-out area will be briefly described. The lead-in area is a tape length of 17 mm to 108 mm from the start end of the operation area of the magnetic tape.
It refers to the area existing in the range of mm, and the program number at this time is BB which is a code indicating the lead-in area.
Is recorded (hereinafter referred to as BB). The lead-out area is the end portion of the operation area of the magnetic tape, and is a code indicating the lead-out area in the program number over a tape length of 73.35 mm or a non-recorded portion of 73.35 mm or more. A certain EE is recorded (hereinafter referred to as EE).

[0007]

SUMMARY OF THE INVENTION An R- having such a configuration
When recording on a magnetic tape typified by DAT, for example, when recording from the middle of the magnetic tape, pressing the instruction key (record pause key) for instructing the transition to the conventional recording state will move the position where the magnetic head is located. Recording started from the spot without any judgment. Therefore, start ID, B
B and EE, or the lead-out area sometimes remains halfway, so if you play the tape after this recording,
Various inconveniences as described below have occurred.

For example, when a song is recorded midway in the signal of the start ID, the residual start ID in the previous recording
After that, the start ID of the recording is recorded, or the start ID is recorded for 9 seconds or more. Therefore, there is a problem in that the desired music is not cued well when the music of the tape after recording is cued.

Further, when a song is recorded from the middle of the BB, the BB having a halfway length remains, and then the BB is recorded intermittently, so that the BB becomes longer than necessary. there were.

Further, when a music piece is recorded from the middle of the EE, the EE remains, and after that, the music piece is additionally recorded. Therefore, even if an attempt is made to reproduce the additionally recorded music, when the magnetic head detects the EE before that, the magnetic head determines that there is no music in the future, and there is a problem that it is not rewound and reproduced.

Further, when a piece of music is recorded from the middle of the unrecorded portion, the tape is wasted, and it is complicated for the recorder to adjust the position of the tape himself.

The present invention has been made in view of the above problems, and an object of the present invention is to rewind or feed a magnetic tape by a predetermined amount, and to search for a desired song at the time of reproduction after recording. An object of the present invention is to provide a magnetic tape device capable of smoothly detecting a program number and effectively recording on a tape.

[0013]

In order to achieve the above object, the magnetic tape device according to the present invention digitally converts music or the like into a magnetic tape that is helically scanned by a magnetic head carried on a rotating drum. Main data and a start ID which is management information of the main data,
An apparatus for digitally recording sub-data such as a program number in each of the main area and the sub-area of the magnetic tape, characterized by the following.

(1) An instruction key for instructing a transition to the recording state, a state control means for controlling the transition to the recording state by a command of the instruction key, and a sub data detection means for detecting sub data from a sub area. , A tape rewinding means for rewinding the magnetic tape in the opposite direction to the reproducing direction, the instruction key is pressed, and the head is scanned by the state control means when the head is scanning. When the start ID is detected from the sub area by the sub data detecting means, the magnetic tape is rewound by the tape rewinding means while the sub data is being monitored by the sub data detecting means, and the start ID
After detecting the head portion of the recording medium, recording means is further started from a position where the magnetic tape is rewound by a predetermined amount.

(2) An instruction key for instructing a transition to the recording state, a state control means for controlling the transition to the recording state in response to a command from the instruction key, and a sub data detecting means for detecting sub data from the sub area. , A tape rewinding means for rewinding the magnetic tape in the opposite direction to the reproducing direction, the instruction key is pressed, and the head is scanned by the state control means when the head is scanning. When BB is detected from the sub-area by the sub-data detecting means, the magnetic tape is rewound by the tape rewinding means while the sub-data detecting means monitors the sub-data, and the head portion of the BB is detected. After that, there is provided means for starting recording from a position where the magnetic tape is rewound by a predetermined amount.

(3) An instruction key for instructing the transition to the recording state, a state control means for controlling the transition to the recording state in response to the instruction of the instruction key, and a sub data detection means for detecting sub data from the sub area. , A tape feeding means for feeding the magnetic tape in the reproduction direction, the instruction key is pressed, and the head is scanned by the state control means when the head is scanning from the sub-area of the magnetic tape portion. When BB is detected by the sub-data detecting means, the magnetic tape is fed by the tape feeding means while the sub-data is being monitored by the sub-data detecting means, and the end portion of the BB is detected. Further, it has means for starting recording from a position where the magnetic tape is fed by a predetermined amount.

(4) An instruction key for instructing a transition to the recording state, a state control means for instructing the transition to the recording state by a command of the instruction key, and a sub data detecting means for detecting sub data from the sub area. , A tape rewinding means for rewinding the magnetic tape in the opposite direction to the reproducing direction, the instruction key is pressed, and the head is scanned by the state control means when the head is scanning. When EE is detected from the sub-area by the sub-data detecting means, the magnetic tape is rewound by the tape rewinding means while the sub-data detecting means monitors the sub-data, and the leading end of the EE is detected. After that, there is provided means for starting recording from a position where the magnetic tape is rewound by a predetermined amount.

(5) An absolute time which has the characteristics described in (1), (2), (3) and (4) above, and which indicates at least the elapsed time from the beginning of the magnetic tape in the sub-area of the magnetic tape. Information is recorded, and in response to a command from the instruction key, the sub-data detection means starts from a sub-area of the magnetic tape portion scanned by the head when the state control means shifts to a recording state.
When any one of D, BB and EE is detected and the tape is rewound by the tape rewinding means, it is continued after the first absolute time information (T ₁ ) at the beginning of the detected signal is detected. Then, the absolute time information (T ₂ = T ₁ −T ₀ ) after a predetermined time (T ₀ ) rewinds the magnetic tape to the position of the magnetic tape detected from the sub area, and recording is started from that position. In case of feeding by the tape feeding means, after detecting the first absolute time information (T ₁ ′) of the end portion of the BB, it is further continued for a predetermined time (T ₁ ).
Absolute time information (T ₂ ′ = T ₁ ′ + T) after ₀ ′)
₀ ') feeds the magnetic tape to the position of the magnetic tape detected from the sub area, and starts recording from that position.

(6) A first rotation pulse detection means having the characteristics described in (1), (2), (3) and (4) above, which detects a rotation pulse proportional to the rotation speed of the take-up reel. A second rotation pulse detecting means for detecting a rotation pulse proportional to the number of rotations of the supply reel; first and second rotation pulse detecting means for counting outputs from the first rotation pulse detecting means and the second rotation pulse detecting means; Having two counting means,
In response to a command from the instruction key, any one of the start ID, BB and EE is detected by the sub-data detecting means from the sub-area of the magnetic tape portion scanned by the head when the state control means shifts to the recording state. In the case of being detected and rewound by the tape rewinding means, after detecting the leading part of one of the signals, the first and second counting means detect the first and second rotation pulse detecting means. The output of the magnetic tape is started, the magnetic tape is rewound to a value at which the sum of the number of rotation pulses counted by the first and second counting means reaches a predetermined value, and recording is started from that position, When the tape is fed by the tape feeding means, after detecting the end portion of the BB, the first and second counting means perform the first and second rotations. The counting of the output from the loose detecting means is started, the magnetic tape is fed until the sum of the number of rotation pulses counted by the first and second counting means reaches a predetermined value, and recording is performed from that position. To start.

(7) An instruction key for instructing the transition to the recording state, a state control means for controlling the transition to the recording state by the instruction of the instruction key, and a sub-data detecting means for detecting sub-data from the sub-area. A reproduction output signal from the magnetic tape, the identification means for identifying the presence / absence of a recording signal, and the tape rewinding means for rewinding the magnetic tape in the opposite direction to the reproduction direction. When the state control means determines that the recording signal does not exist in the magnetic tape portion scanned by the head when the state control means shifts to the recording state, the magnetic tape is rewound by the tape rewinding means and the identification is performed. The means searches the last portion of the magnetic tape where the recording signal exists, and recording is started from that position.

[0021]

In the magnetic tape device according to the present invention having the above structure, when recording is performed from the middle of the magnetic tape represented by R-DAT, an instruction key (recording pause key) for instructing a transition to the recording state is performed. ) Is pressed, the sub-code information is read to determine the position of the magnetic head, and the magnetic tape can be rewound or fed before and after each signal area.

Therefore, in the apparatus described in (1) above, the tape is recorded from the tape position a predetermined amount before the beginning of the start ID signal recorded during the previous recording.
Start ID is interrupted, or the specified time (9 seconds during playback)
It won't be longer.

In the apparatus described in (2) above, since the tape is recorded from the tape position a predetermined amount before the beginning of the BB recorded during the previous recording, the BB may be temporarily interrupted or the previous BB may remain. Absent.

In the device described in (3) above, since the tape is recorded from the tape position after a predetermined amount from the end portion of the BB recorded during the previous recording, the previous BB remains and the BB can be recorded. It is effective because there are few.

In the apparatus described in (4) above, the EE recorded during the previous recording is recorded from the tape position a predetermined amount before the beginning of the EE, so that the EE does not remain unerased.

In the devices described in (5) and (6) above, even if the deck does not have the reverse play function in the pinch-on state, the same operation as that of the above-mentioned devices (1) to (4) is performed. Is possible.

In the apparatus described in (7) above, since recording is started from the head of the unrecorded portion, the tape has no unrecorded portion and the continuity of absolute time information can be maintained.

[0028]

EXAMPLES The present invention will be described in detail below with reference to examples.

FIG. 1 shows the appearance of a magnetic tape device according to an embodiment of the present invention. The front panel of the apparatus main body 51 has a tape loading section 5 for loading a magnetic tape.
5. Buttons 52-54 and knobs 57- for various operations
59, and a display panel 56 for displaying various information are provided. Of these, the button 52 is the first digital recording pause key, and the button 53 is the second digital recording pause key. By pressing either the button 52 or 53 and then the playback button 54, the first digital recording pause key is pressed. Or a second digital recording can be started. Here, the case of recording a digital signal input such as an optical input without passing through the A / D converter is referred to as first digital recording, and an analog signal is digitalized by the A / D converter and then recorded. The case is called the second digital recording. If the 52, 53 button is pressed during recording, the recording can be paused.

FIG. 2 shows a track formed on the magnetic tape 22. As shown in this figure, a large number of tracks 41 are formed adjacent to each other on the magnetic tape 22 so as to form an angle θ with the tape running direction T. Each track has a PCM area 4 in the center
2, an ATF (auto track finding) area 43 provided on both sides thereof, and a sub area 44 further provided on both sides thereof. Of these, PC
The M area 42 is an area for recording the music data itself, the AT
The F area 43 is an area for recording information necessary for tracking. In addition, the sub area 44 is a program number,
This is an area for recording subcodes such as absolute elapsed time and start ID.

FIG. 3 is a block diagram of a magnetic tape device according to an embodiment of the present invention. This device is provided with a digital input terminal 3 and an analog input terminal 4. Of these, the digital signal input from the digital input terminal 3 is input to the signal processing unit 11 via the digital audio interface 5, and the analog signal input from the analog input terminal 4 is an analog digital (A / D) signal. The signal is converted into a digital signal by the converter 6 and input to the signal processing unit 11. The signal processing unit 11 is configured to perform predetermined signal processing under the control of the system control circuit 12.

A sub-code generator 13 is connected to the system control circuit 12. The sub-code generated here is added to the output of the signal processor 11 by an adder 14, and a modulator 15 is added.
Entered in. The signal subjected to the predetermined modulation by the modulator 15 is amplified to a predetermined level by the recording amplifier 16 and then input to the recording unit 18 via the switching circuit 17 and carried by the rotating drum 19 so as to face 180 degrees. Two magnetic heads 2
1 is supplied. A head switching signal (not shown) synchronized with the rotation of the rotary drum 19 is input to the switching circuit 17 from the system control circuit 12, and the two magnetic heads 21 are switched at this timing. ..

The magnetic head 21 is in contact with a magnetic tape 22 whose running is controlled by a drive motor (not shown),
A helical scan is made so as to cross this at a predetermined angle with respect to the traveling direction. This allows
Tracks are formed on the magnetic tape 22 at this angle, and digital data is sequentially written. A mechanism control drive circuit 25 is connected to the recording / reproducing unit 18, and under the control of the system control circuit 12, it controls the rotating drum 19, a tape feeding reel, a tape winding reel, and the like (not shown). ..

Further, the switching circuit 17 includes a reproducing amplifier 26.
Is connected to amplify the reproduction signal input from the recording / reproducing unit 18 through the switching circuit 17. The signal amplified by the reproduction amplifier 26 is demodulated by the demodulator 27 and then input to the signal processing unit 28. Signal processing unit 28
The reproduction signal input to is subjected to predetermined signal processing under the control of the system control circuit 12 and output as a digital signal from the digital output terminal 35, or by a digital analog (D / A) converter 36. It is adapted to be converted into an analog signal and output from the analog output terminal 37. The signal processing unit 28 includes the subcode detection unit 2
9 is connected to detect various subcodes from the reproduction signal input to the signal processing unit 28 and sends them to the system control circuit 12.

The system control circuit 12 also includes an operation unit 3
Controlling each part based on the instructions input from 4, playing,
In addition to controlling operations such as recording and high-speed search, the display unit 31
Display various information to. Further, a storage unit 32 is connected to the system control circuit 12 so as to store various programs and data relating to reproduction and recording operations.

Next, an outline of the operation of the recording pause key at the time of recording by the magnetic tape device of the present invention will be described with reference to FIG.

First, when the first digital recording pause key or the second digital recording pause key is pressed (S81), the magnetic head reproduces for a predetermined time (S82),
It is determined whether the position of the magnetic tape being reproduced for a predetermined time is the start ID, BB or EE of the sub area,
If any of these is applicable (S8
3) Then, the tape is rewound to a position where the corresponding signal is not recorded (S84), the reel is stopped, and the recording pause operation is ended (S85). If the above signal is not detected when searching the sub area (S8
6) Rewinding for several pulses (S87), and then reel stop and end the recording pause operation (S88).

The operation of the recording pause key at the time of re-recording in the magnetic tape device having the above configuration will be described in detail with reference to respective flowcharts.

Recording Pause Key Operation When Start ID is Detected First, the outline of the recording pause key operation when the magnetic head is on or near the start ID during recording will be described with reference to FIG.

When recording is performed when the magnetic tape is inserted in the magnetic tape device and is in a stopped state, either the first digital recording or the second digital recording is selected and the corresponding first The user presses the digital recording pause key or the second digital recording pause key (S101). When the recording pause key is pressed, it is determined whether the position of the magnetic tape is within the start ID during reproduction for a predetermined time (S102), and if the start ID is detected, the tape rewind mode is switched to. (S103), rewind until the fall of the start ID is detected (S104). Then, when the fall of the start ID is detected, a predetermined amount (for example, 2
Rewind (S105), switch from tape rewind mode to recording pause mode (S106), and recording pause is completed. If the start ID is not detected, the recording pause is completed by rewinding a predetermined amount.

This operation will be described with reference to FIG. 6 by illustrating the operation situation.

When the recording pause key is pressed, the magnetic head reproduces for a predetermined time (operation), and the start ID is reproduced during reproduction.
Is detected, the recording pause operation is completed by rewinding from that position to the head of the start ID, and further rewinding (operation of) for 2 seconds (rewind amount) from the head of the start ID.

BB, which is the code indicated by the lead-in area
Recording Pause Key Operation at Detection Part 1 An outline of the recording pause key operation when the magnetic head is present at or near the code BB, which is a code indicating the lead-in area at the time of recording, will be described with reference to FIG.

Similarly to the above, either the first digital recording or the second digital recording is selected, and the subject presses the corresponding first digital recording pause key or the second digital recording pause key (S20).
1). When the recording pause key is pressed, it is determined whether or not the position of the magnetic tape is within BB during reproduction for a predetermined time (S2
02) If it is in BB, the tape rewind mode is switched (S203), and rewinding is performed until BB is no longer detected (S204). Then, after rewinding to the head of the BB, a predetermined amount (for example, 2 seconds) is rewound from there (S205), the tape rewind mode is switched to the recording pause mode (S206), and the recording pause is completed. When the lead-in area is not detected, the recording pause is completed by rewinding a predetermined amount.

This operation will be described with reference to FIG.

When the recording pause key is pressed, the magnetic head reproduces (moves) for a predetermined time. When BB is detected during reproduction, the magnetic head is rewound from that position to the head of BB, and further, from the head of BB for (for example, 2 seconds) Rewind amount) Rewind (operation) and end the recording pause operation.

BB which is the code shown in the lead-in area
Recording Pause Key Operation at Detection Part 2 An outline of the recording pause key operation when the magnetic head is present at or near BB at the time of recording will be described with reference to FIG.

Similarly to the above, either the first digital recording or the second digital recording is selected, and the subject presses the corresponding first digital recording pause key or the second digital recording pause key (S30).
1). When the recording pause key is pressed, it is determined whether or not the position of the magnetic tape is within EE during reproduction for a predetermined time (S3
02) If it is in BB, the tape winding mode is switched (S303), and the tape is fed until BB is no longer detected (S304). When the tape is fed to the end of the BB, the tape is further fed by a predetermined amount (for example, 2 seconds) (S305), the tape feed mode is switched to the recording pause mode (S306), and the recording pause is completed. When BB is not detected, the recording pause is completed by rewinding by a predetermined amount.

EE, which is a code indicating the lead-out area
Recording Pause Key Operation When Detecting Detecting the Recording Pause Key Operation When the Magnetic Head Exists at or Near EE at the Time of Recording, an outline of the recording pause key operation will be described.

Similarly to the above, either the first digital recording or the second digital recording is selected, and the subject presses the corresponding first digital recording pause key or the second digital recording pause key (S40).
1). When the recording pause key is pressed, it is determined whether or not the position of the magnetic tape is within EE during reproduction for a predetermined time (S4).
02) If it is in EE, the tape rewind mode is switched (S403), and rewinding is performed until EE is no longer detected (S404). Then, after rewinding to the head of EE, a predetermined amount (for example, 2 seconds) is rewound from that (S405), the tape rewind mode is switched to the recording pause mode (S406), and the recording pause is completed. When EE is not detected, the recording pause is completed by rewinding a predetermined amount.

The corresponding start ID, BB and EE
Determine the recording position from the time versus the absolute time from the beginning of the tape
Recording Pause Key Operation The outline of the operation of the recording pause key during recording will be described with reference to FIG.

Similarly to the above, either the first digital recording or the second digital recording is selected, and the user presses the corresponding first digital recording pause key or the second digital recording pause key (S50).
1). When the recording pause key is pressed, it is determined whether the magnetic tape has a magnetic head at any of the start ID, BB, and EE during reproduction for a predetermined time. If it is in any of these, the tape is wound. After returning to the return or feeding mode (S502), the absolute time (T _S ) of the beginning and end of the corresponding signal is detected (S503).
Then, while rewinding or feeding the tape, it is determined whether or not the corresponding signal area is removed (S504), and if it is removed, the absolute time (T _N ) from the tape start end is detected (S505), Until the difference | T _S −T _N | between the absolute time (T _S ) at the beginning and the end of the corresponding signal and the absolute time (T _N ) from the beginning of the tape reaches a predetermined time (for example, 2 seconds), Rewinding or feeding (S506), when the predetermined time is reached, the reel is stopped, and the tape rewinding and feeding mode is switched to the recording pause mode (S).
507), the recording pause is completed.

This operation will be described with reference to FIG.

When the recording pause key is pressed, the magnetic head reproduces for a predetermined time (operation of), and the start ID is reproduced during reproduction.
Is detected, the position is rewound from that position to the beginning of the start ID, the absolute time (T _S ) at this beginning is detected, and the difference | T _S −T _N | in absolute time ( _TN ) from the tape start end is determined. Rewind (operation) until the time (for example, a predetermined time of 2 seconds) is reached, and when the predetermined time is reached, the recording pause operation is ended.

Supports when start ID, BB and EE are detected
Recording from both take-up and supply reel pulses
Recording Pause Key Operation for Determining Position The outline of the recording pause key operation during recording will be described with reference to FIG.

Similarly to the above, either the first digital recording or the second digital recording is selected, and the subject presses the corresponding first digital recording pause key or the second digital recording pause key (S60).
1). When the recording pause key is pressed, it is determined whether the position of the magnetic tape is within the start ID, BB, and EE during playback for a predetermined time, and if it is in any of these, rewind or feed the tape. Switch to send mode (S
602), while rewinding or feeding the tape, it is determined whether or not the corresponding signal area is removed (S603), and if it is removed, take-up and supply reel pulses from the beginning and end of the corresponding signal (S604), when the sum of both reel pulses reaches a predetermined number of pulses (S605), the tape rewinding and feeding mode is switched to the recording pause mode (S606), and the recording is performed. The pose is complete.

This operation will be described by illustrating the operation situation with reference to FIG.

When the recording pause key is pressed, the magnetic head reproduces (operation of) several pulses, and when EE is detected during reproduction, after rewinding from that position to, for example, the beginning of EE, take-up and supply reel pulse Detection is started, and the reel is rewound until the sum of both reel pulses reaches a predetermined pulse number (predetermined pulse number), and when the predetermined pulse number is reached, the reel is stopped and the recording pause operation is performed. finish.

Recording Pause Key Operation When Detecting Unrecorded Area With reference to FIG. 15, an outline of the recording pause key operation when the magnetic head is present in the unrecorded area during recording will be described.

Similarly to the above, either the first digital recording or the second digital recording is selected, and the subject presses the corresponding first digital recording pause key or the second digital recording pause key (S70).
1). When the recording pause key is pressed, the envelope signal (RF signal) is searched during reproduction for a predetermined time to determine whether the magnetic head is at the unrecorded portion or the recorded portion of the magnetic tape (S702). If there is no envelope signal (RF signal), the mode is switched to the high-speed rewind mode (S703), and the envelope signal (RF signal)
Rewind until there is a signal) (S704). When the envelope signal (RF signal) is rewound to a position, the reel is stopped from the high-speed rewind mode to switch to the recording pause mode (S305), and the recording pause is completed. When the envelope signal (RF signal) is detected in the first RF signal search, the recording pause is completed by rewinding by a predetermined amount.

[0061]

As described above, the magnetic tape device of the present invention has an instruction key (recording pause key) for instructing the transition to the recording state when recording from the middle of the magnetic tape represented by R-DAT. When pressed, it has a function of reading the information of the subcode, determining the position of the magnetic head, and rewinding or feeding the magnetic tape before and after each signal area.
Therefore, according to the first aspect of the invention, since the recording is started from the predetermined value before the signal of the start ID recorded in the previous recording, the start ID is interrupted or the specified time (9 seconds)
You can find the beginning of the song smoothly during playback without becoming longer.

According to the second aspect of the invention, since the recording is performed from the predetermined value before the BB recorded in the previous recording, the BB is recorded.
A new program number can be recorded without being interrupted temporarily or leaving the previous BB.

According to the third aspect of the invention, since the recording is performed from the predetermined value after the BB recorded in the previous recording, the previous BB completely remains and there are few devices that can record the BB, which is effective. is there.

According to the fourth aspect of the invention, since the recording is performed from the predetermined value before the EE recorded in the previous recording, the EE
You can play back the songs of the additional recording smoothly without any loss.

According to the fifth and sixth aspects of the invention, even a deck which does not have the reverse play function in the pinch-on state has the same effects as those of the first to fourth aspects of the invention.

In the invention described in claim 7, since the recording is started from the head of the unrecorded portion, the tape has no unrecorded portion and the continuity of the absolute time information is maintained, which is also effective for finding the beginning of the music.

[Brief description of drawings]

FIG. 1 is an external view of a magnetic tape device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a recording track format of a magnetic tape recorded / reproduced by this magnetic tape device.

FIG. 3 is a block diagram showing this magnetic tape device.

FIG. 4 is a flow chart for explaining in detail the operation of a recording pause key when re-recording is performed by this magnetic tape device.

FIG. 5 is a flowchart showing an outline of a recording pause key operation in the case where a magnetic head is present on and near the start ID during re-recording in this magnetic tape device.

FIG. 6 is an enlarged view of a sub-area for explaining the operation status shown in FIG.

FIG. 7 is a flowchart showing an outline of a recording pause key operation for rewinding the tape when a magnetic head is present on the lead-in area and in the vicinity thereof during re-recording in this magnetic tape device.

8 is an enlarged view of a sub-area for explaining the operation status shown in FIG.

FIG. 9 is a flowchart showing an outline of a recording pause key operation of winding a tape when a magnetic head is present on and near the lead-in area during re-recording in this magnetic tape device.

FIG. 10 is a flowchart showing an outline of a recording pause key operation in the case where a magnetic head is present on and near the lead-out area during re-recording in this magnetic tape device.

FIG. 11: Start I in this magnetic tape device
9 is a flowchart showing an outline of a recording pause key operation for determining a recording position from the absolute time corresponding to D, the lead-in area and the lead-out area and the absolute time from the tape start end.

FIG. 12 is an enlarged view of a sub-area for explaining the operation status shown in FIG.

FIG. 13: Start I in this magnetic tape device
9 is a flowchart showing an outline of a recording pause key operation for determining a recording position from take-up and supply reel pulses corresponding to D, the lead-in area and the lead-out area.

FIG. 14 is an enlarged view of a sub area for explaining the operation status shown in FIG.

FIG. 15 is a flowchart showing an outline of a recording pause key operation when an unrecorded portion is detected in this magnetic tape device.

[Explanation of symbols]

22 magnetic tape 41 track 42 PCM (main) area 43 ATF (auto track finding) area 44 sub area

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 3, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 3

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 5

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 7

[Correction method] Change

[Correction content]

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] 0003

[Correction method] Change

[Correction content]

In a magnetic tape device represented by such an R-DAT, a so-called helical scan system is generally used in which a rotating head scans the running magnetic tape obliquely. In this method, a long linear track slightly inclined with respect to the tape running direction is formed on the magnetic tape .

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

SUMMARY OF THE INVENTION An R- having such a configuration
When recording on a magnetic tape typified by DAT, for example, when recording from the middle of the magnetic tape, when the instruction key (record pause key) for instructing the transition to the conventional recording state is pressed, the magnetic head scans. Recording was started from the spot without judging the tape position. Therefore, the start ID, BB and EE, or the lead-out area sometimes remains halfway, and therefore, when the tape is reproduced after the recording, various inconveniences as described below occur.

[Procedure Amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction content]

When a song is recorded from the middle of the BB, the BB with a half length remains or the BB is recorded.
When recording, BB is recorded intermittently, which causes a problem that BB becomes longer than necessary.

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0016

[Correction method] Change

[Correction content]

(3) An instruction key for instructing the transition to the recording state, a state control means for controlling the transition to the recording state in response to the instruction of the instruction key, and a sub data detection means for detecting sub data from the sub area. , A tape feeding means for feeding the magnetic tape in the reproduction direction, the instruction key is pressed, and the head is scanned by the state control means when the head is scanning from the sub-area of the magnetic tape portion. when the BB is detected by the sub data detecting means, while monitoring the sub data by the sub data detecting means, to feed the magnetic tape the tape feeding means, it detects the exit portion of BB After that, there is further provided means for starting recording from a position where the magnetic tape is fed by a predetermined amount.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

(5) An absolute time which has the characteristics described in (1), (2), (3) and (4) above, and which indicates at least the elapsed time from the beginning of the magnetic tape in the sub-area of the magnetic tape. Information is recorded, and in response to a command from the instruction key, the sub-data detection means starts from a sub-area of the magnetic tape portion scanned by the head when the state control means shifts to a recording state.
When any one of D, BB and EE is detected and the tape is rewound by the tape rewinding means, it is continued after the first absolute time information (T ₁ ) at the beginning of the detected signal is detected. Then, the magnetic tape is rewound to the position of the magnetic tape detected from the sub area by the absolute time information (T ₂ = T ₁ −T ₀ ) before the predetermined time (T ₀ ), and recording is started from that position. , when feeding by said tape feed means, 'after detecting, continued to the predetermined time (T ₀ the first absolute time information of the exit portion of BB (T _1)' after only) Absolute time information (T ₂ ′ = T ₁ ′ + T
₀ ') feeds the magnetic tape to the position of the magnetic tape detected from the sub area, and starts recording from that position.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0020

[Correction method] Change

[Correction content]

(7) An instruction key for instructing the transition to the recording state, a state control means for controlling the transition to the recording state by the instruction of the instruction key, and a sub-data detecting means for detecting sub-data from the sub-area. A reproduction output signal from the magnetic tape, the identification means for identifying the presence / absence of a recording signal, and the tape rewinding means for rewinding the magnetic tape in the opposite direction to the reproduction direction. wherein the state control unit when moving to record mode, when said head by the identification means determines that the recording signal on a magnetic tape portion being scanned does not exist, while the magnetic tape rewound by the tape rewinding means The identification means searches the last portion of the magnetic tape where the recording signal exists, and recording is started from that position.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction content]

In the apparatus described in (3) above, since the tape is recorded from the tape position after a predetermined amount from the end portion of the BB recorded at the time of the previous recording, only the previous BB remains.
B never breaks.

[Procedure Amendment 11]

[Document name to be amended] Statement

[Name of item to be corrected] 0032

[Correction method] Change

[Correction content]

A sub-code generator 13 is connected to the system control circuit 12. The sub-code generated here is added to the output of the signal processor 11 by an adder 14, and a modulator 15 is added.
Entered in. The signal subjected to the predetermined modulation by the modulator 15 is amplified to a predetermined level by the recording amplifier 16 and then input to the recording / reproducing unit 18 via the switching circuit 17 and carried on the rotary drum 19 so as to face 180 degrees. The two magnetic heads 21 are supplied. A head switching signal (not shown) synchronized with the rotation of the rotary drum 19 is input to the switching circuit 17 from the system control circuit 12, and the two magnetic heads 21 are switched at this timing. ..

[Procedure Amendment 12]

[Document name to be amended] Statement

[Item name to be corrected] 0040

[Correction method] Change

[Correction content]

When recording is performed when the magnetic tape is inserted in the magnetic tape device and is in a stopped state, either the first digital recording or the second digital recording is selected and the corresponding first The user presses the digital recording pause key or the second digital recording pause key (S101). When the recording pause key is pressed, it is determined whether the position of the magnetic tape is within the start ID during reproduction for a predetermined time (S102), and if the start ID is detected, the tape rewind mode is switched to. (S103), rewind until the fall of the start ID is detected (S104). Then, when the fall of the start ID is detected, a predetermined amount (for example, 2
Rewind (S105), switch from tape rewind mode to recording pause mode (S106), and recording pause is completed. It should be noted that, if you did not detect a start ID, Recording pose is completed.

[Procedure Amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Change

[Correction content]

[0044] by selecting either of the same manner as described above first digital recording or a second digital recording, the first digital recording pause key or the second of digital recording pause key to use for the person corresponding to the respective presses (S20
1). When the recording pause key is pressed, it is determined whether or not the position of the magnetic tape is within BB during reproduction for a predetermined time (S2
02) If it is in BB, the tape rewind mode is switched (S203), and rewinding is performed until BB is no longer detected (S204). Then, after rewinding to the head of the BB, a predetermined amount (for example, 2 seconds) is rewound from there (S205), the tape rewind mode is switched to the recording pause mode (S206), and the recording pause is completed. If the lead-in area is not detected , the recording pause is completed.

[Procedure Amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0048

[Correction method] Change

[Correction content]

[0048] Select one of the similarly first digital recording or a second digital recording, the first digital recording pause key or a second digital record pause key to use for persons corresponding to each press (S30
1). When the recording pause key is pressed, it is determined whether or not the position of the magnetic tape is within BB during reproduction for a predetermined time (S3
02) If it is in BB, the tape winding mode is switched (S303), and the tape is fed until BB is no longer detected (S304). When the tape is fed to the end of the BB, the tape is further fed by a predetermined amount (for example, 2 seconds) (S305), the tape feed mode is switched to the recording pause mode (S306), and the recording pause is completed. It should be noted that, if you did not detect the BB, Recording pose is completed.

[Procedure Amendment 15]

[Document name to be amended] Statement

[Correction target item name] 0050

[Correction method] Change

[Correction content]

[0050] Select one of the similarly first digital recording or a second digital recording, the first digital recording pause key or a second digital record pause key to use for persons corresponding to each press (S40
1). When the recording pause key is pressed, it is determined whether or not the position of the magnetic tape is within EE during reproduction for a predetermined time (S4).
02) If it is in EE, the tape rewind mode is switched (S403), and rewinding is performed until EE is no longer detected (S404). Then, after rewinding to the head of EE, a predetermined amount (for example, 2 seconds) is rewound from that (S405), the tape rewind mode is switched to the recording pause mode (S406), and the recording pause is completed. It should be noted that, if you did not detect the EE, Recording pose is completed.

[Procedure 16]

[Document name to be amended] Statement

[Correction target item name] 0052

[Correction method] Change

[Correction content]

Similarly to the above, either the first digital recording or the second digital recording is selected, and the user presses the corresponding first digital recording pause key or the second digital recording pause key (S50).
1). When the recording pause key is pressed, it is determined whether the magnetic tape has a magnetic head at any of the start ID, BB, and EE during reproduction for a predetermined time. If it is in any of these, the tape is wound. Move to the rewind or feed mode (S502) to rewind the tape or
Determining whether or not the relevant signal area is exited while feeding
(S503), and the beginning and end of the corresponding signal
The absolute time (T _S ) of the end portion is detected (S504). When it is released, the absolute time (T _N ) from the tape start end is detected (S505), and the absolute time (T _S ) at the beginning and end of the corresponding signal and the absolute time (T _N ) from the tape start end are detected. Until the difference | T _S −T _N | reaches a predetermined time (for example, 2 seconds) (S506), and when the predetermined time is reached, the reel is stopped to rewind the tape and Switch from feeding mode to recording pause mode (S
507), the recording pause is completed.

[Procedure Amendment 17]

[Document name to be amended] Statement

[Correction target item name] 0056

[Correction method] Change

[Correction content]

[0056] by selecting either of the same manner as described above first digital recording or a second digital recording, the first digital recording pause key or the second of digital recording pause key to use for the person corresponding to the respective presses (S60
1). When the recording pause key is pressed, it is determined whether the position of the magnetic tape is within the start ID, BB, and EE during playback for a predetermined time, and if it is in any of these, rewind or feed the tape. Switch to send mode (S
602), while rewinding or feeding the tape, it is determined whether or not the corresponding signal area is removed (S603), and if it is removed, take-up and supply reel pulses from the beginning and end of the corresponding signal (S604), when the sum of both reel pulses reaches a predetermined number of pulses (S605), the tape rewinding and feeding mode is switched to the recording pause mode (S606), and the recording is performed. The pose is complete.

[Procedure 18]

[Document name to be amended] Statement

[Correction target item name] 0060

[Correction method] Change

[Correction content]

[0060] by selecting either of the same manner as described above first digital recording or a second digital recording, the first digital recording pause key or the second of digital recording pause key to use for the person corresponding to the respective presses (S70
1). When the recording pause key is pressed, the envelope signal (RF signal) is searched during reproduction for a predetermined time to determine whether the magnetic head is at the unrecorded portion or the recorded portion of the magnetic tape (S702). If the envelope signal (RF signal) is not present , the mode is switched to the high-speed rewind mode (S703), and rewinding is performed until the envelope signal (RF signal) is present (S70).
4). Then, it exists envelope signal (RF signal)
After winding back as far as that, switching from the high-speed rewind mode to record pause mode reel is stopped (S30
5) The recording pause is completed. In search of the first RF signal, when the envelope signal (RF signal) is detected, Recording pause is completed.

[Procedure Amendment 19]

[Document name to be amended] Statement

[Correction target item name] 0063

[Correction method] Change

[Correction content]

According to the third aspect of the present invention, since the recording is performed from the predetermined value after the BB recorded in the previous recording, the previous BB is completely left and the BB is not interrupted temporarily. br />, so it is effective.

[Procedure amendment 20]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

[Procedure correction 21]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 7

[Correction method] Change

[Correction content]

[Figure 7]

[Procedure correction 22]

[Document name to be corrected] Drawing

[Correction target item name] Figure 9

[Correction method] Change

[Correction content]

[Figure 9]

[Procedure amendment 23]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 10

[Correction method] Change

[Correction content]

[Figure 10]

[Procedure amendment 24]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 11

[Correction method] Change

[Correction content]

FIG. 11

[Procedure Amendment 25]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 13

[Correction method] Change

[Correction content]

[Fig. 13]

[Procedure Amendment 26]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 15

[Correction method] Change

[Correction content]

FIG. 15

Claims (7)

[Claims] 1. A main data obtained by digitally converting a music piece or the like on a magnetic tape to be helically scanned by a magnetic head carried on a rotating drum, and a sub ID such as a start ID and a program number which are management information of the main data. A device for digitally recording data in each of the main area and sub-area of the magnetic tape, an instruction key for instructing transition to a recording state, and a state for controlling transition to the recording state by an instruction of the instruction key Control means, sub-data detecting means for detecting sub-data from the sub-area, and tape rewinding means for rewinding the magnetic tape in a direction opposite to the reproducing direction. The start ID is the above-mentioned sub-area from the sub-area of the magnetic tape part which the head is scanning at the time of shifting to the recording state by means. When the sub-data detecting means detects the sub-data, the magnetic tape is rewound by the tape rewinding means while the sub-data detecting means monitors the sub-data, and the leading portion of the start ID is detected, and then a predetermined amount A magnetic tape device comprising means for starting recording only from the position where the magnetic tape is rewound. 2. Main data obtained by digitally converting music, etc. on a magnetic tape to be helically scanned by a magnetic head carried on a rotating drum, and a sub ID such as a start ID and a program number which are management information of the main data. A device for digitally recording data in each of the main area and sub-area of the magnetic tape, an instruction key for instructing transition to a recording state, and a state for controlling transition to the recording state by an instruction of the instruction key Control means, sub-data detecting means for detecting sub-data from the sub-area, and tape rewinding means for rewinding the magnetic tape in a direction opposite to the reproducing direction. Indicates the lead-in area from the sub-area of the magnetic tape part that is being scanned by the head when moving to the recording state by means When the code is detected by the sub-data detecting means, the magnetic tape is rewound by the tape rewinding means while monitoring the sub-data by the sub-data detecting means, and the head portion of the code indicating the lead-in area is read. A magnetic tape device, further comprising means for starting recording from a position where the magnetic tape is rewound by a predetermined amount after the detection. 3. Main data obtained by digitally converting music, etc. on a magnetic tape to be helically scanned by a magnetic head carried on a rotary drum, and a sub ID such as a start ID and a program number which are management information of the main data. A device for digitally recording data in each of the main area and sub-area of the magnetic tape, an instruction key for instructing transition to a recording state, and a state for controlling transition to the recording state by an instruction of the instruction key Control means, sub-data detecting means for detecting sub-data from the sub-area, and tape feeding means for feeding the magnetic tape in the reproducing direction, the instruction key is pressed, and the state control means records The code indicating the lead-in area from the sub area of the magnetic tape part that the head is scanning at the time of transition to the state When the sub-data detecting means detects the sub-data, the magnetic tape is fed by the tape feeding means while monitoring the sub-data by the sub-data detecting means.
A magnetic tape device comprising means for starting recording from a position where the magnetic tape has been fed by a predetermined amount after detecting the end portion of the code indicating the lead-in area. 4. Main data obtained by digitally converting music, etc. on a magnetic tape to be helically scanned by a magnetic head carried on a rotating drum, and a sub ID such as a start ID and a program number which are management information of the main data. A device for digitally recording data in each of the main area and sub-area of the magnetic tape, an instruction key for instructing transition to a recording state, and a state for controlling transition to the recording state by an instruction of the instruction key Control means, sub-data detecting means for detecting sub-data from the sub-area, and tape rewinding means for rewinding the magnetic tape in a direction opposite to the reproducing direction. The lead-out area is indicated from the sub-area of the magnetic tape part that the head is scanning when moving to the recording state by means of If a sub-code is detected by the sub-data detecting means, the magnetic tape is rewound by the tape rewinding means while monitoring the sub-data by the sub-data detecting means, and the head of the code indicating the lead-out area is read. A magnetic tape device comprising means for starting recording from a position where the magnetic tape is rewound by a predetermined amount after detecting the copy. 5. The magnetic tape device according to claim 1, 2, 3, or 4, wherein absolute time information indicating at least an elapsed time from a start end of the magnetic tape is recorded in a subarea of the magnetic tape, In response to a command from the instruction key, a start ID, a code indicating a lead-in area, and a lead are read by the sub-data detecting means from the sub-area of the magnetic tape portion that is being scanned by the head when the state control means shifts to the recording state. When any one of the codes indicating the out area is detected and the tape is rewound by the tape rewinding means, it is continued after the first absolute time information (T ₁ ) at the beginning of the detected signal is detected. Then, the absolute time information (T ₂ = T ₁ −T ₀ ) before the predetermined time (T ₀ ) is magnetically detected up to the position of the magnetic tape detected from the sub area. When the tape is rewound, recording is started from that position, and the tape is fed by the tape feeding means, the first absolute time information (T ₁ ′) at the end of the code indicating the lead-in area is detected. After that, the absolute time information (T ₂ ′ = T ₁ ′ + T) after a predetermined time (T ₀ ′) is continued.
₀ ') feeds the magnetic tape to the position of the magnetic tape detected from the sub-area, and starts recording from that position. 6. The magnetic tape device according to any one of claims 1, 2, 3 and 4, wherein a first rotation pulse detecting means for detecting a rotation pulse proportional to the rotation speed of the take-up reel and a rotation speed of the supply reel are provided. Second rotation pulse detecting means for detecting a proportional rotation pulse, and first and second counting means for counting the outputs from the first rotation pulse detecting means and the second rotation pulse detecting means, Then, in response to a command from the instruction key, a code indicating a start ID and a lead-in area from the sub-area of the magnetic tape portion scanned by the head at the time of transition to the recording state by the state control means by the sub-data detection means And any one of the codes indicating the lead-out area is detected, and when rewinding by the tape rewinding means, any one of the signals After detecting the head portion, the first and second counting means start counting the outputs from the first and second rotation pulse detecting means, and the first and second counting means respectively. When the magnetic tape is rewound to a value at which the sum of the counted number of rotation pulses reaches a predetermined value, recording is started from that position, and when the tape is fed by the tape feeding means, a code indicating the lead-in area is used. After detecting the end portion, the first and second counting means start counting the outputs from the first and second rotation pulse detecting means, and the first and second counting means respectively. A magnetic tape device characterized in that a magnetic tape is fed to a value at which a sum of the counted number of rotation pulses reaches a predetermined value, and recording is started from that position. 7. Main data obtained by digitally converting music or the like on a magnetic tape to be helically scanned by a magnetic head carried on a rotary drum, and sub-information such as start ID and program number which are management information of the main data. A device for digitally recording data in each of the main area and sub-area of the magnetic tape, an instruction key for instructing transition to a recording state, and a state for controlling transition to the recording state by an instruction of the instruction key Control means, sub-data detection means for detecting sub-data from the sub-area, identification means for identifying the presence / absence of a recording signal by the reproduction output signal from the magnetic tape, and rewinding the magnetic tape in the direction opposite to the reproduction direction. And a tape rewinding means, wherein the instruction key is pressed, and the state control means shifts to a recording state. In the case where it is determined by the identifying means that the recording signal does not exist on the magnetic tape portion being scanned by the head, the magnetic tape is rewound by the tape rewinding means, and the identifying signal causes the recording signal on the magnetic tape to be rewound. A magnetic tape device characterized in that it searches for the last part of the file and starts recording from that position.