JPS6061905A - Producer of recorded tape for rotary head type magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To produce at a high speed a reciprocating recording/reproducing type recorded magnetic tape by using two rotary heads consisting of N units of element heads with different azimuth angles to carry out recording on a magnetic tape which is driven at a speed NV which is N times as high as the speed V of a prescribed tape. CONSTITUTION:Two rotary heads Ha and Hb are set at symmetrical positions by 180 deg. in the circumferential direction of a head cylinder HS and in the direction of a prescribed angle (-theta and +theta). Both heads form simultaneously N pieces of parallel recording tracks by N units of element heads at the 1st and 2nd areas Dg and Dc set between a record starting position near a side edge (a) of a magnetic tape T which is driven at a speed NV which is N times as high as the speed in a reproduction mode and the record ending position near the other side edge (b) of the tape. In this case, both heads form the recording tracks alternately and according to the revolution of the cylinder HS. Thus it is possible to produce at a high speed a recorded tape for rotary head type recording/reproducing device.

Description

[Detailed Description of the Invention] (Conventional Examples and Problems) Recorded tapes for fixed head magnetic recording and reproducing devices have traditionally been produced and sold in large quantities as various tapes including so-called music tapes. As is well known, the recorded tape is produced by a recorded tape production device (dubbing machine) that is configured to record signals using a fixed head on a magnetic tape running at high speed.

In recent years, rotary head magnetic recording and reproducing devices for consumer use that can record and reproduce signals with a wider band than audio signals, such as television video signals, have become popular. Prerecorded tapes that are to be played back using rotary head type magnetic recording and reproducing devices are now produced according to music requirements, and PCs using rotary head type magnetic recording and reproducing devices are
Attempts have also been made to record and reproduce M signals.

By the way, the recording trace pattern on the magnetic tape used for recording and reproducing in a rotary head type magnetic recording and reproducing device is determined by the movement of the magnetic tape in the running direction and the movement of the rotating magnetic head in the direction across the magnetic tape. Since it is determined by relative motion, when creating a recorded tape for a rotating magnetic head type magnetic recording/reproducing device, the tape must be run at a predetermined tape running speed during the playback operation of a single rotating head type magnetic recording/reproducing device. It is necessary to ensure that a trajectory is drawn on a magnetic tape running at high speed by a rotating head in a recorded tape production device that matches the trajectory of a rotating head sequentially drawn on a magnetic tape. In head-type magnetic recording and reproducing devices, in order to be able to record and reproduce broadband signals, the relative linear velocity between the magnetic tape and the rotating head is set to a predetermined extremely large value. The magnetic gap length of the rotating head, which should be determined in accordance with the shortest recording wavelength recorded on the magnetic tape by the rotating head at the speed, is:
At present, the state of production is close to the limit of what can be achieved using current machining technology. Even if an attempt was made to construct a device using the same concept as that of a device for producing recorded tapes for magnetic recording and reproducing devices, it would not be possible to construct a practical device.Therefore, the applicant company has requested an improvement. Previously, in Japanese Patent Application No. 58-46945, a device for producing a recorded tape for a rotary head type magnetic recording/reproducing device was proposed.

Now, in magnetic recording and reproducing devices for analog signals that have been widely used in the past, each part is constructed with consideration given to ensuring that the continuity of signals is not lost when recording and reproducing signals. It is well known that magnetic recording and reproducing devices for PCM signals, which have been increasingly used in recent years, record and reproduce signals based on PCM signals that are recorded and reproduced on the time axis. Even if the PCM signal is discontinuous at the top, it can be easily made into a continuous signal in the subsequent signal processing circuit. Therefore, by effectively utilizing the characteristics of the PCM signal described above, the magnetic tape The area from the - side edge to the vicinity of the center in the width direction and the area from the other side edge to the vicinity of the center in the width direction of the magnetic tape are used in correspondence with the forward and reverse running directions of the magnetic tape. Attempts have also been made to enable so-called reciprocating recording using a rotating head type PCM magnetic recording and reproducing device. The area from to the vicinity of the center and the area from the other end to the vicinity of the center in the width direction of the magnetic tape can be used in correspondence with the forward and reverse directions of the running direction of the magnetic tape. Since the so-called former 1jlF# re-type magnetic tape cannot be produced even by the above-mentioned already proposed apparatus for producing recorded tape for a rotary head type magnetic recording/reproducing device, a solution was needed.

(Means for Solving the Problems) The present invention defines a first region from one end in the width direction of the magnetic tape to near the center, and a first region from the other end in the width direction of the magnetic tape to the center. The region up to the vicinity of the section is defined as the second region, and the area near the section 1 is defined as the second region. In each of the second areas, there is a PCM signal recording trace such that the starting point is at the end side in the width direction of the magnetic tape and a line point is made near the center in the width direction of the magnetic tape. A device for producing a recorded tape, such as one in which recording is formed by a rotary head type magnetic recording and reproducing device, in which a trajectory of a rotary head is sequentially drawn on a magnetic tape running at a predetermined tape running speed V during a playback operation of a rotary head type magnetic recording and reproducing device. within a time length approximately corresponding to the time length of the signal reproduced from one recording trace of the magnetic tape running at the predetermined tape running speed V. , on a magnetic tape running at a tape running speed NV that is N times the above-mentioned predetermined tape running speed (1), for each rotary head of a multi-head format consisting of N element heads. In such a manner that they are formed simultaneously,
Means for simultaneously forming =7- by each rotary head of two rotary heads having different azimuth angles that are used alternately, and a rotary head type magnetic recording/reproducing method. 1/ compared to the playback signal played from a magnetic tape running at a predetermined tape running speed V during playback operation of the device.
A recording signal generation means in which the time axis is compressed to N and the arrangement of the signals on the time axis is taken into consideration so that the signals are recorded in the first area, and a rotary head type magnetic recording/reproducing device. 1 compared to the playback signal played from a magnetic tape running at a predetermined tape running speed V during playback operation of the device.
/N in a state where the time axis is compressed and the arrangement of the signals on the time axis is taken into consideration so as to be recorded in the second area, and the recording signal as described above. The recording signal generated by the generating means is transmitted for a time approximately corresponding to twice the time length of the signal reproduced from one recording trace of the magnetic tape running at the predetermined tape running speed V. For each length.

Means for sequentially and alternately storing data in two groups of storage devices each having 2N storage devices, and for 2N storage devices in one group of the two groups of storage devices; During the period in which the signals for -8= are being written sequentially, the signals stored in each of the 2N storage devices of the other group of storage devices in the two groups of storage devices are written in advance. means for reading out two sets of predetermined N simultaneous signals at readout timings obtained in the above manner, and each signal in the two sets of simultaneous signals obtained as described above has a predetermined temporal relationship with each other. and means for supplying the two sets of simultaneous signals to N element heads in each specific rotary head. The present invention provides an apparatus for creating finished tapes.

(Example) Hereinafter, specific contents of a recorded tape production apparatus for a rotary head type magnetic recording/reproducing apparatus of the present invention will be explained in detail with reference to the accompanying drawings.

FIG. 1 is a plan view of a magnetic tape for illustrating the trace pattern of a recorded tape to be created by the recorded tape creation device for a rotary head type magnetic recording/reproducing device of the present invention.

In FIG. 1, T is a magnetic tape, and in this magnetic tape T, each recording trace in an area Dg existing from one end a to near the center in the width direction is recorded on the magnetic tape during playback operation. With the magnetic tape T running in the forward direction x1, the starting point is near one end a in the width direction of the magnetic tape T, and the ending point is near the center part in the width direction of the magnetic tape T, and the rotating head It is a recording trace on which recorded signals are recorded so that when the magnetic tape is scanned, recorded signals indicating the correct arrangement order on the time axis can be reproduced from the recorded trace. Each recording trace in the area Dc that exists from the other end to the vicinity of the center in the width direction of T is the width of the magnetic tape 1゜, assuming that the magnetic tape T is running in the opposite direction x2 during playback operation. Indicates the correct arrangement order on the time axis when the magnetic tape is scanned by a rotating head, with the starting point near one end in the direction and the ending point near the center in the width direction of the magnetic tape T. This is a record trace on which a record signal is recorded so that such a record signal can be reproduced from the record trace.

The above-mentioned 2 in the above-mentioned magnetic tape 'r shown in the first diagram.
The portion GB formed between the two areas Dg and Dc is a non-recording area GB provided for a guard margin, and the two areas Dg and I formed in the magnetic deso T shown in the first diagram. ) In c, the parts indicated by the symbols CTl and CT2 are the control tracks, but they also contain the PCM number and the pilot for tracking reference, which are the recording signals to be recorded on the magnetic tape T. In the case where the tracking control operation of the magnetic recording/reproducing apparatus is performed by the tracking servo system using a signal in the form of a signal that is frequency multiplexed with the signal, the control operation shown in FIG. control j rack C
Needless to say, TI and CT2 will become unnecessary.

FIG. 2 shows two rotary heads H used in a recorded tape producing apparatus for a rotary head type magnetic recording/reproducing apparatus according to the present invention.
a, Hb and f formed thereby on the magnetic tape
2 is a diagram showing an f8 recording pattern (track bar 11-turn), and the recording traces illustrated in the magnetic tape T shown in FIG. Ha, which corresponds to the locus drawn by the rotary head on the magnetic tape running at a predetermined tape running speed V, and also shown in FIG.

Hb each has N element heads Hal, Ha2...
-Han%Hbl, Hb2...Hbn are two magnetic heads Ha and Hb.

Each of the two magnetic heads Ha shown in FIG.
. Element head Hal~
Each rotary head composed of Han, Hbl-Hb n can be manufactured relatively easily.

The rotary head Ha shown in FIG. 2 has a magnetic gap in each of its element heads Hal to Han whose extension direction is a predetermined direction with respect to the width 12 of the recording trace on the magnetic tape. Head cylinder H8 (head drum H8) so that the specific angle (-〇) of
), and the rotary head Hb shown in FIG. The head cylinder H8 (head drum H8) is rotated so that the predetermined second specific angle (10)
) (the above-mentioned head cylinder H
8 is shown in FIG. 3).

The two rotating heads Ha shown in FIG. 2 mentioned above,
Recording traces sequentially formed on the magnetic tape T by Hb are recorded by each of the element heads Hal to Ha in the 9-rotary head Ha during the recording operation on the magnetic tape T by the rotary head Ha.
During the recording operation on the magnetic tape T by the rotating head Hb once for a non-recording portion formed between adjacent ones of n, each element head Hbl in the rotating head Hb
- By forming a record trace by Hbn,
The recording traces finally recorded on the magnetic tape by the two rotating heads Ha and Hb are at different azimuth angles.
The recording traces formed by the magnetic heads having θ and 10 are arranged in a sequential and alternating manner.

FIG. 3 shows an apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing device according to the present invention, that is, the first region is from one end to the vicinity of the center in the width direction of the magnetic tape; The region from the other end in the width direction of the tape to the vicinity of the center is defined as the second region, and is defined as the first region described above. In each of the second areas, a recording trace is created by the PCM signal, with a starting point at the end side in the width direction of the magnetic tape and an ending point near the center in the width direction of the magnetic tape. In order to create a recorded tape such as a recorded tape, a trajectory of a rotating head is sequentially drawn on a magnetic tape running at a predetermined tape running speed V during a playback operation of a rotating head type magnetic recording/reproducing device. within a time length approximately corresponding to the time length of the signal reproduced from one recording trace of the magnetic tape running at the predetermined tape running speed V. , on a magnetic tape running at a tape running speed NV that is N times the above-mentioned predetermined tape running speed V, each rotary head of a multi-head format consisting of N element heads. They are formed simultaneously by two rotary heads having different azimuth angles, which are used sequentially and alternately. and in a state where the time axis is compressed to 1/N compared to the reproduction signal reproduced from a magnetic tape running at a predetermined tape running speed during the reproduction operation of the rotary head type magnetic recording and reproduction device. , and recording signal generation means that takes into consideration the arrangement of signals on the time axis "2" to be recorded in the first area, and a predetermined tape during the reproduction operation of the rotary head type magnetic recording and reproduction device. A signal whose time axis is compressed to 1/N compared to the reproduction signal reproduced from a magnetic tape running at a running speed V, and whose time axis is to be recorded in the second area. A recording signal generating means in which the arrangement of the recording signals is taken into account, and a recording signal generated by the recording signal generating means described above is run at the predetermined tape running speed V. Data is sequentially and alternately stored in two groups of storage devices, each having 2N storage devices, for each time length that approximately corresponds to twice the time length of a signal reproduced from one recording trace on a magnetic tape. 2N of one group of storage devices in the two groups of storage devices;
During the period in which recording signals are sequentially written to the 2N storage devices, the signals stored in the 2N storage devices of the other group of the two storage devices are written. , a means for reading out two sets of predetermined N simultaneous signals at a predetermined read timing, and each signal in the two sets of simultaneous signals obtained as described above,
means for causing said two sets of simultaneous signals to be supplied to each of the N element heads in each particular rotary head, having a predetermined temporal relationship to each other; FIG. 16 is a block diagram schematically showing the configuration of a recording tape producing apparatus for a rotary head type magnetic recording and reproducing apparatus, in which the RAD cylinder H8 in the embodiment shown in FIG. Two rotary heads Ha and Hb as described above are attached, and each of the rotary heads Ha and Hb is composed of N element heads (N=4 in the embodiment).

That is, as shown in FIGS. 2 and 4, one rotary head Ha attached to the head cylinder IIs has a magnetic gap extending in the direction of the magnetic tape in each of its element heads Hal to Han. It is attached to the head cylinder H5 so as to form a predetermined first specific angle (-0) with respect to the width direction of the recording trace above, and the other rotating head Hb is attached to each of its element heads. Hbl～H
It is attached to the head cylinder IIs so that the extending direction of the magnetic gap in the magnetic tape is at a predetermined second specific angle (100) with respect to the width direction of the recording trace on the magnetic tape.

Therefore, in the embodiment device shown in FIG.
The recording traces sequentially formed on the magnetic tape T by the rotating heads Ha and Hb are recorded next to each element head Hal to Han in the rotating head Ha during the recording operation on the magnetic tape T by the rotating head Ha. During the recording operation on the magnetic tape T by the one-rotation head Hb, recording traces are formed by each of the element heads Hbl to Hbn in the one-rotation head Hb on the non-recorded portion formed between the two. The recording traces finally recorded on the magnetic tape by the two rotating heads Ha and Hb created by the magnetic heads having different azimuth angles are sequentially and alternately arranged. Ru.

The head cylinder H3 is rotated at a predetermined number of rotations at a high speed, and the rotary heads Ha and Hb attached to the head cylinder H8 sequentially and alternately record information signals on the magnetic tape T.

Each of the above-mentioned rotating heads Ha, Hb has N element heads Hal~Han, Hbl~, respectively, as described above.
Hbn, the N element heads for each rotary head are simultaneously N parallel to the magnetic tape T.
Form a record of the book's record.

1 for each of the above-mentioned rotating heads Ha and Hb? A recording signal is supplied to each of the element heads Hal=Han, Hbl to Hb n Ic through a coupling means such as a rotary transformer (not shown), for example.

In the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus according to the present invention shown in FIG.
Based on the synchronization signal in the recording signal in Rg, H8Rc, the timing pulse generated from the timing pulse generator TPO as the head cylinder H8 rotates, the clock pulse generated by the built-in clock pulse generator, etc. The controller generates various control pulses necessary for controlling the operation of each part of the apparatus, thereby controlling the operation of each part of the apparatus.

In FIG. 3, two rotary heads Ha and Hb, which are attached to a head cylinder H8 and used, have respective N
The extension direction of the magnetic gaps of the element heads Hal~Han, Hbl19-~Hbn is set at a predetermined tape running speed V during the playback operation of the rotary head type magnetic recording/playback device.
The tape runs at N times the tape running speed V during the above-described playback operation, as shown in FIGS. The head cylinder is oriented at a predetermined angle (-0 degrees and +0 degrees) to the width direction of the recording traces formed on the magnetic tape T running at the speed NV (direction perpendicular to the extending direction of the recording traces). It is attached at a 180 degree symmetrical position in the circumferential direction of H8.

The rotary head Ha and the rotary head Hb attached to the head cylinder H8 sequentially and alternately rotate at a running speed NV that is N times the tape running speed V during playback, as the head cylinder H8 rotates. Magnetic tape T running on
A first area Dg and a second area D6 are respectively set between a recording start position near one side edge a of the magnetic tape T and a recording end position near the other side edge a of the magnetic tape T. N 20-parallel recording traces are simultaneously formed by N element heads, and the second
In the figure and FIG. 4, the first . A group of N records in each of the second regions Dg and Dc is illustrated and explained.

As described above, each area recorded and formed in each area Dg, Da between the recording start position and the recording end position on the magnetic tape T running at a running speed NV that is N times the tape running speed (d) during playback. One recording trace is reproduced from one recording trace in each area Dg and DC of the magnetic tape running at a predetermined tape running speed V during the reproduction operation of the rotary head type magnetic recording and reproducing device. This is done so that a signal with the same time length as the signal being recorded is recorded.

As a result, according to the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus shown in FIG. By performing recording in two areas, it is possible to create a recorded tape for a rotary head type magnetic recording/reproducing device at a speed 2N times faster than a normal recording operation.

As mentioned above, the magnetic tape T has two rotating heads Ha.
, Hb, N recording marks are sequentially formed, and the two rotary heads Ha and Hb attached to the head cylinder H8 have already been explained with reference to FIG. As shown in FIG. , (Hb) are N element heads Hal to Han.

It is impossible for each center position of each magnetic gap in (Hbl to Hbn) to occupy the recording start position and a position parallel thereto at the same time.

The above points will be explained as follows with reference to FIG. In Figure 4, S-8 is the recording start position, H
a and Hb are each N element heads Hal”H n
, Hbl to Hb n.

23- As described above, each of the N element heads Hal to Han constitutes each rotary head Ha, Hb.

The extension direction of the magnetic gap in Hbl-Hbn is set at a predetermined angle (-0 degrees, +0 degrees) to the 11 directions of the recording traces recorded on the magnetic tape T, and the above-mentioned recording start position Since the direction of S-8 and the extension direction of the magnetic gap described above do not match, each rotating head Ha, ()
(b) Each of the N element heads Ha
1~Han, (Hbl~Hbn), the element head that reaches the recording start position S-8 first is
If the element head Hal (or Hbl) is shown in FIG. Other element heads Ha2 to Han (or H
b2 to Hbn) until the center position of each magnetic gap sequentially reaches the recording start position @S-8 described above, τl (or τ2) and 2τ1 (or 2τ2)j, respectively.
...(n-1)τ1 (or (n-1)τ2) time is required.

Therefore, N element heads Hal to Han constitute each rotary head Ha and Hb.

(Hbl to Hbn), in which a predetermined recording signal is recorded from each recording start position ItS-S to each of the N recording traces formed simultaneously by the rotary head type magnetic In order to obtain a recorded tape having recorded contents that can be used as a recorded tape for a recording/reproducing device, N element heads Ha 1 to Han, Hb constituting each rotary head Ha, Hb must be used.
Regarding the recording signals to be simultaneously supplied to l~Hb n , there is also a time delay τ1~ as shown in FIG.
(n-1)τ1. It is required that τ2 to (n-1)τ2 be given.

That is, in the apparatus of the embodiment shown in the third embodiment, the amount of time delay to be given to the recording signals simultaneously supplied to the N element heads Hal~)(an) in the one-rotation head Ha is given to the element head Hal. 0 for the signal to be given to the element, τ1° for the signal to be given to the element head Ha2, 2τ1 for the signal to be given to the element head Ha3, and ( n-1) τ1, and in the embodiment device shown in the third figure, N element heads H in the rotary head Hb
The time delay amount that should be given to the recording signals that are simultaneously supplied to bl to Hbn is O for the signal that should be given to the element head Hbl, and O for the signal that should be given to the element head Hb2. For τ2. The signal to be given to the element head Hb3 is 2τ2, and the signal to be given to the element head Hbn is (n-1)τ2, for the rotary head type magnetic recording/reproducing device shown in FIG. In the recorded tape production apparatus, each delay amount to be given to the recording signal is given by each delay circuit in the delay circuit sections DLa and DLb in FIG.
Each recording signal to which a predetermined amount of time delay is given by each delay circuit in a and DLb is transmitted to recording amplifiers RA a 1 to RAan, R provided individually.
Depending on the corresponding one of Abl~RAbn,
As will be described later, only a signal of a predetermined time width is amplified and then supplied to each corresponding element head Hal-Han and Hbl-Hbn in each rotary head Ha, Hb.

As already mentioned with reference to FIG. 1, the recorded magnetic tape to be produced by the apparatus according to the embodiment of the present invention shown in FIG. Each recording trace in the area Dg existing from one end a to the vicinity of the center in the width direction of the magnetic tape T has a recording trace pattern such as When playing back the magnetic tape T in the forward direction x1
When the magnetic tape T is running in a state in which the magnetic tape T is running in the width direction, the vicinity of one side end a in the width direction is the starting end, and the vicinity of the center part in the width direction of the magnetic tape T is the termination end. When the tape is scanned, the recorded signals must be recorded so that the recorded signals indicating the correct sequence on the time axis can be reproduced from the recorded traces.
Each recording trace in the area Da that exists from the other end to the vicinity of the center in the width direction of the magnetic tape The starting point is near one end of the magnetic tape T, and the ending point is near the center in the width direction of the magnetic tape T, so that when the magnetic tape is scanned by the rotating head, it is correct on the 1-time axis. The recorded signal must be recorded so that the recorded signal indicating the arrangement order can be reproduced from the recorded trace.

In the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing device of the present invention, the recording traces in the two areas Dg and Da are serially created by the rotary head that continuously rotates in one specific direction. Since the recording signal is to be recorded on the magnetic tape T, the recording signal to be recorded in the two areas Dg and Dc is equal to the time difference between the recording signal for one area and the recording signal for the other area. It is necessary that the signals on the axis -Z/- be arranged in an opposite arrangement state, and the recorded tape for the rotary head type magnetic recording/reproducing device shown in FIG. The data conversion device [DEXg.

Due to the operation of DEXc, the two areas D g e
The recording signals to be respectively recorded on Dc are arranged in reverse order on the time axis.

Now, in the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus shown in FIG.
8Rc is a recording signal source, and of the two recording signal sources H8Rg and H8Rc described above, the recording signal source H8Rg with the subscript g is a recording signal source to be recorded in the recording area Dg. The recording signal source HS Rc, which is a signal source and has a subscript C, is a signal source of a recording signal to be recorded in the recording area Dc.

Note that the meanings of the subscripts g and e for the other constituent parts to which the subscripts g and c are attached are also the same as in the case of the recording signal source.

-Edict- In Fig. 3, SWg+ SWc and S g +S
c, SWa, SWb are changeover switches, MA
g, MAc are storage device groups.

Recording signal source H8Rg and recording signal source HS Rc.

The changeover switch SWg and the changeover switch SWc, the storage device group MAg and the storage device group MAc, the changeover switch Sg and the changeover switch Sc, etc. have the same configuration, so unless there is a problem in the explanation, one of the In order to avoid the complexity of illustration and explanation, the memory device [M A c is simply shown as a block without showing the specific internal structure thereof.

In the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus shown in No. 3vA, a recording signal source H8Rg is transmitted at a predetermined tape running speed V during the reproduction operation of the rotary head type magnetic recording/reproducing apparatus. A PCM signal (1/N time axis compressed signal) in which the signal to be reproduced from the existing magnetic tape is compressed in time axis to 1/N is sent out and applied to the movable contact C of changeover switch SWg.

In addition, in the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus shown in FIG.
A PCM signal (1/N time axis compression signal) in which a signal to be reproduced from a magnetic tape running at a predetermined tape running speed V is time-axis compressed to 1/N is sent out, and the selector switch SWe is pressed. given to the movable contact C.

The above recording signal source HS Rg and the recording signal source H8
The two recording signal sources Rc and Rc are configured to send out the above-mentioned 1/N time-base compressed signals in synchronization with each other under the control of control signals given from the control circuit CC. -ing

In addition, each of the above-mentioned changeover switches S W ge S W
The switching of the movable contacts C is controlled by a switching control signal supplied from the control circuit CC so that the movable contacts C are switched between the fixed contacts A and the fixed contacts C at a predetermined switching period Ts. .

The aforementioned changeover switch SWg and changeover switch 8W
The switching period Ts of g y 8 W e is determined between the area Dg and the area of one recording trace on the magnetic tape running at a predetermined tape running speed V during the playback operation of the rotary head type magnetic recording/playback device. It is equal to twice the time length of the signal reproduced from the recording start position to the recording end position with the Dc portion, or equal to 1 or approximately twice the time length of the signal. .

Therefore, the switching period T of the changeover switch S W g mentioned above
2 in the storage device group MAg from the recording signal source H8Rg via the changeover switch SWg during the time period corresponding to s.
The recording signal given to one of the memory devices Ma, MbO of the group is extended in time by a factor of N, and is then read into a predetermined state by the reproducing operation of the rotary head type magnetic recording/reproducing device. A signal is sequentially reproduced from 2N recording traces in an area Dg on a magnetic tape running at a tape running speed ■ by a selected one of the rotary head Ha and the rotary head Hb. It will be assumed that it is compatible.

-δl - Also, during the time period corresponding to the switching period T8 of the changeover switch SWc described above, the recording signal source H8RC is transmitted to the storage device group MAc (storage device group MAc) via the changeover switch SWc.
c has the same configuration layer as the storage device group MAg described above, and is one selected from the two groups of storage devices M a and M b in the two groups of storage devices Ma and Mb. The recording signal applied to the magnetic tape, which is applied to the magnetic tape running at a predetermined tape running speed V, is recorded on the magnetic tape running at a predetermined tape running speed V by the playback operation of the rotary head type magnetic recording/playback device, with the time axis expanded by N times. The 2N recorded traces in the area DC correspond to signals that are sequentially reproduced by one of the one-rotation head Ha or the rotary head Hb.

As already mentioned, the recorded magnetic tape to be produced by the apparatus according to the embodiment of the present invention has two areas Dg and DC, and a non-recording area GB between them, as explained with reference to FIG. A tape having a recording trace pattern in which a magnetic tape T has a recording trace pattern in which each region Dg exists from one end Ω to near the center in the 111 direction of the magnetic tape T. - When the magnetic tape Tt<* is run in the direction The recording signal is arranged so that the end is near the center, so that when the magnetic tape is scanned by the rotating head, the recording signal indicating the correct sequence on the time axis can be reproduced from the recording trace. In addition, each recording trace in the area Dc that exists from the other end in the width direction of the magnetic tape T to near the center in the width direction of the magnetic tape T in FIG.
When the magnetic tape T is running in the opposite direction x2,
The starting point is near one end in the width direction of the magnetic tape T, and the ending point is near the center of the magnetic tape T in the width direction, so that when the magnetic tape is scanned by the rotating head, the 1 time axis The recorded signals must be recorded in such a way that the recorded signals indicating the correct arrangement order as described above can be reproduced from the recording trace, and the preparation of the recorded tape for the rotary head type magnetic recording and reproducing device of the present invention The apparatus uses a rotary head that continuously rotates in a specific direction to form recording traces in two areas Dg and DC in series on the magnetic tape T as shown in FIGS. 1 and 2. 2 above mentioned magnetic tape.
Of the recording signals to be recorded in the two areas Dg and Dc, the recording signal for one area Dg is supplied from the recording signal source H8Rg described above, and the recording signal for the two areas Dg and Dc of the magnetic tape is supplied from the recording signal source H8Rg. Of the recording signals to be recorded on eDc, the recording signal for the other area Dc is supplied from the recording signal source H8Rc described above.

The signal from the recording signal source SRg to be recorded in the area Dg on the magnetic tape and the signal from the recording signal source HS Rc to be recorded in the area Dc on the magnetic tape are as described above. It will be used by being recorded on magnetic tape in a serial relationship on the time axis.
In order to ensure that the individual signals to be recorded in the two regions 35-areas Dg and Dc are used at predetermined time positions on the time axis, the signals from the recording signal source H8Rg described above are used. are recording device group MAg, changeover switch S g e data conversion device DEXgt changeover switch SW a , delay circuit section DLg
, to the rotary head Ha via the recording amplifier group RAa, and the recording signal source HS described above.
The signal from Rc is sent to recording device group MAc, selector switch S
c, data conversion device DEXc, changeover switch s
The signal is applied to the rotary head Hb via the signal wb, the delay circuit section DLb, and the recording amplifier group RAb.

By the way, recording signal source H8Rg → 8N switch SWg
→Storage device group MAg→Selector switch Sg and recording signal source HS Rc→Selector switch SWc
→Storage device group M A c → Selector switch Sc have the same configuration, and there is no difference in the operation of the above-mentioned components.
The following description of a portion of the configuration 36 described above is based on the recording signal source H8Rg→
Only the component consisting of 8N switch SWg→storage device group MAg→changeover switch Sg will be described.

Now, from the recording signal source SHRg to the storage device Ma of the storage device group MAg via the changeover switch SWg.

The recording signal given to the selected one of Mb, Ma, (Mb) is applied to the 2N storage device elements M ail
, M a21. M a12. M a22. M aln,
M a2n(Mbll, M b21.M b12.M
b22. M bin, M b2n).

That is, now, for example, at time t1, the changeover switch SWg
When the movable contact C is switched from the fixed contact b (or a) side to the fixed contact a (or b) side, a signal is sent from the recording signal source SHRg over the time period from time t1 to T8, and the changeover switch SWg One of the storage devices M a
The recording signal supplied to the storage device (or Mb) is stored as a signal that is sequentially divided by Ts/2N on the time axis. 2N storage elements Mail in Ma (or Mb), Ma21. M a12. M a22.
M aln, M a2n (or M bll, M b2
1. Mb12. Mb22. M bin, M b2n
) are sequentially stored.

2N storage device elements M a in storage device M a (or Mb) 11. M a 21. M a 12.
M a 22. M ain.

Ma2n (or M b 11. M b 21. M b
12. M b 22. Mb In, M h 2n)
For each one item in sequence, Ts/2N on the time axis
A storage device is used to store recorded signals that are divided into sequential sections. 2N storage elements Mail in Ma (*or Mb), Ma 21. M a 12. M
a22. M a In, M a 2n (or Mb
ll, M b 21. M b 12. M b 22. M
This can be achieved by setting the writing start timing and writing end timing of each one of the signals in sequence (B In, M b 2n) as required. Equipment Ma
, Mb are controlled by control signals applied to them.

That is, 2 in the storage device M a (or Mb)
N storage elements M a 11. M a 21.
M a 12. Ma 22. M ain, M
a 2n (or Mbll, Mb21.Mb12, M
b22. The storage device element Ma11 (or M b 11) in M b In, M b 2n) stores the recording signal from time t1 described above to time (t 1 + Ts/2N), and the storage device element Ma (or Mb) 2N storage elements M a 11. M a 2
1. M a 12. M a 22. M a In.

Ma2n (or M b 11. M b 21. M b
12. M b 22. Mb in, Mb 2n)
The storage device element Ma21 (or M b 21) in
1+2Ts/2N)), and further includes 2N storage elements M a 11. in the storage M a (or Mb). M a 21. Ma
12. M a 22゜M a In, M a 2n (
Or M b 11. M b 21. M b 12. M
b22. The storage device element Ma12 (or Mb12) in M b In, M b 2n) is stored at the above-mentioned time (
From t1+2TsMf to time ((t 1+ 3Ts/2N
)), and in the same manner, 2N storage device elements Mail, Ma 21 . M a 12. M a 2
2. M a in, M a 2n (or Mbll, M
b21. M b 12. M b 22. M b i
The storage element Ma2n (or Mb2n) in n, M b 2n) is at the time (tl+ (2n −1)Ts2/
2N) to the time ((t 1 + 2nTs/2N)), that is, the recording signal from the time (tl+Ts) is stored.

As described above, the movable contact C of the changeover switch SWg changes from one fixed contact a (or b) to the other fixed contact b (
Alternatively, the recording signal over a period of time Ts from time t1 switched in a) is transmitted to 2N storage device elements Mail, Ma21 . M
a12. M a22. M aln, M a2n (or M bll, M b21. M b12. M b22. M
bln, M b2n), the movable contact C of the changeover switch SWg changes to the time (t
l+Ts), the other fixed contact a (or b) described above
The switch is then made to the one fixed contact b (or a) mentioned above, and this time the time is changed from time (tl+Tg) to time (tl+2T).
g) The recording signal of the time length Tel is stored in the storage device Mb.
2N storage elements M a in (or Ma)
11. M a21, M a 12. M a 22. M
a in, M a 2n (or M b 11゜39
- M b 21. M b 12. M b 22. Mb
in, M b 2n).

In the explanation so far, the recording signal sent from the recording signal source H8Rg is transmitted to a large number of memories in the storage devices Ma and Mb by the operation of the changeover switch SWg and the storage device group MAg under the control of the control circuit CC. For equipment elements,
The recording signals are stored in a predetermined order, but the following describes the operation when the recording signals sent from the recording signal source H8Rg are stored in the storage device group MA. A similar operation is performed in the changeover switch SWc and the storage device group MAc, so that the recording signal sent from the recording signal source H8Rc is also stored in the storage device group MAc.

At the time (tl+Ts) when the recording signal for the time length Ts from time t1 described above has been stored in the storage devices of the storage device group M A g (M A c ), the storage device Ma
2N storage elements M ai in (* or Mb)
l, M a21. M a12. M a22. M aln
, M a2n (or M bll, M b21. M b
12. Mb22. M bin, M b24O- n) start a signal read operation, and the 2N storage device elements M ail, M a21 . M a12. M a22. M
aln, M a2n (or M b 11. M b
21. M b 12. M b 22. M b In.

The signal read from the selector switch Sg(
Sc) via the data conversion device DEXg(+)EXc)
supplied to

The data conversion device DEXg and the data conversion device D described above
EXc converts the PCM signal sent from the recording signal source H8Rg or H8Re into a PCM signal in a signal format suitable for recording, adds an error correction signal, and performs other functions such as PC
Predetermined signal processing to be performed on the M signal is performed.

Now, as already described with reference to FIG. 1, the recorded magnetic tape to be produced by the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus of the present invention has two areas Dg and Dc. , has a recording trace pattern such that a non-recorded area OB exists between them, and
In the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing device according to the present invention, a recording trace in two areas Dg and Dc is serially recorded on a magnetic tape by a rotary head that continuously rotates in one specific direction. Since the recording signal to be recorded on the two areas D g sDc described above is the same on the time axis as the recording signal for one area and the recording signal for the other area, As mentioned above, it is necessary that the signals are arranged in opposite directions, and for this reason, the recording for the rotary head type magnetic recording/reproducing device shown in FIG. In the finished tape creation device, there are two data conversion devices D.
By the operation of EXg and DEXc, the above two areas D
The recording signals to be recorded in g and Dc must be arranged in opposite directions on the one time axis.

That is, when the recorded magnetic tape created by the apparatus according to the embodiment of the present invention is reproduced by the magnetic recording and reproducing apparatus, one side of the magnetic tape T in the middle direction when the magnetic tape T is running in the forward direction x1. A recording trace is formed in an area Dg such that the starting point is near the end a and the ending is near the center in the width direction of the magnetic tape T, and the magnetic tape T is made to run in the opposite direction x2 during the playback operation by the magnetic recording and playback device. In this state, a recording trace of an area Dc is formed such that the starting point is near one end in the width direction of the magnetic tape T and the ending point is near the center in the reaching direction of the magnetic tape T. During playback operation by a recording/playback device,
When the magnetic tape T is running in the forward direction x1, the signal in the recording trace in the area Dg is reproduced by the rotary head that moves from one end of the magnetic tape to the center in the width direction of the magnetic tape. When the magnetic tape is running in the opposite direction x2 during the playback operation by the magnetic recording and playback device, the rotating head moves from the other end of the magnetic tape to the center in the width direction of the magnetic tape. Since the signal in the DC recording trace is used to reproduce the signal, two data conversion devices DEXg are used in the recorded tape production device for the rotary head type magnetic recording/reproducing device.
, DEXc, the above two regions D g
The recording signals to be recorded on the +43-DC must be arranged in opposite directions on the time axis.

Then, the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus according to the present invention shown in FIG.
, Hb is passed from one end of the magnetic tape to the center in the width direction of the magnetic tape T, and then is moved toward the other end of the magnetic tape, and a signal recording operation is performed. When the magnetic tape T is
The signals to be recorded in the area Da are obtained by reversing the arrangement of the signals on the time axis.

Signals are recorded on the magnetic tape T by the recorded tape producing device for a rotary head type magnetic recording/reproducing device of the present invention in a state where the running direction of the magnetic tape T and the rotating direction of the one-rotation head are opposite to the above-mentioned case. 44- When this is done, the signals to be recorded in the area Dg of the magnetic tape T are reversed in their arrangement on the time axis, contrary to the case described above. At the same time, it goes without saying that the signals to be recorded in the area DC of the magnetic tape T should be such that the arrangement of the signals on the time axis is not reversed.

In the following description of the embodiment, the data conversion device DEX
In c, the arrangement of the signals on the time axis is reversed. FIG. 5 shows the data conversion device [DE
FIG. 2 is a signal configuration diagram for explaining the contents of a data conversion operation in Xc.

FIG. 5(a) shows an example of the signal structure of the PCM signal recorded in the recording trace, and is BO in the figure.

B1. B2...Bn is (n+1
) blocks, and FIG. 5(b) shows the signal configuration of one of the blocks shown in FIG. 5(a). In the figure, 5ync is a synchronization signal, and WO to WII are (m+1)'7
PO and PL are parity words, which can be generated, for example, from data in the same block, or form a single record. It may be formed using data from other blocks that exist, or it may be formed using data from blocks that constitute other records.

Now, as mentioned above, the signal to be recorded in the area DC of the magnetic tape T is changed into a state in which the arrangement of the signal on the time axis is reversed by the data converter *DEXC. The explanation will be as follows with reference to FIG.

In other words, changing the signals shown in FIGS. 5(a) and 5(b), respectively, into signals in which the arrangement of the signals on the time axis is reversed means that the signals shown in FIG. 5(a) BO on the time axis of each block in the signal shown in →
B1→B2......Bn is the sequence Bn→...B2. B1. B
O, that is, the arrangement shown in FIG. 5(a) is reversed, and the constituent signals of each block described above are also arranged in the manner shown in FIG. The bit that appears most delayed on the time axis in parity word P2 appears earliest on the time axis, and the bit that appears earliest on the time axis in the synchronization signal in FIG. 5(b) This means arranging the signals in such a manner that the signal appears most delayed in the ``-'' period.

The data conversion device DEXg and the data conversion device D described above
EXc is a plurality of data conversion circuits DEX
gll-DEXg2n, DEX, cll~
DEXc2n, data conversion device DEXg,
The recording signals subjected to data conversion as required by DEXc are supplied to delay circuit sections DLa and DLb via changeover switches SWa and SWb.

The aforementioned changeover switches SWa and SWb are used to ensure that the output signals from the aforementioned data converters DEXg and DEXc are properly switched and applied to a predetermined rotary head of the two rotary heads Ha and Hb. A signal through the changeover switch SWa is applied to the rotary head Ha, and a signal through the changeover switch SWb is applied to the rotary head Hb.

That is, the signals that have passed through the aforementioned changeover switch SWa are each given a predetermined time delay in the delay circuit section DLa, and then supplied to the recording amplifier RAa, and then sent to the individual recording amplifiers RAal to RAal constituting the recording amplifier RAa.
While being amplified by RAan, only the signal with a predetermined time width is sent to the element head Hal in the rotating head Ha.
~Han, and the signal that has passed through the aforementioned changeover switch SWb is supplied to the delay circuit section DL.
After a predetermined time delay is applied to each of the signals in b, the signals are supplied to the recording amplifier RAb, and are amplified by the individual recording amplifiers RAb1 to RA b n constituting the recording amplifier RAb. is applied to the element heads Hbl to Hbn in the rotary head Hb.

Note that 1 to 16 in FIG. 3 indicate terminals to which control signals from the control circuit CC are supplied. By doing so, each component of the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus can perform the desired operation at the correct timing.

By the way, the amount of time delay to be given to the signal by the delay circuit units DLa' and DLb is the respective predetermined amount of time delay as already described with reference to FIG. At the rotating head Ha, (H
N element heads Hal ~ Han in b), (
The predetermined time delay amount to be given to the recording signals that are simultaneously supplied to the element heads Hat', (Hbl) is 0 for the signal to be supplied to the element head Hat', (Hbl); Head Ha2. (Hb2), τl, element head Ha3.
The signal to be given to (Hb3) is 2τ1, and the signal to be given to the element head Han, (Hb n) is (n-1)τ1.

In the embodiment shown in FIG. 3, each rotary head Ha, (
Hb), each of N element heads Hal to Han,
A predetermined time delay is given to each signal to be given to (Hbl to Hbn).
In carrying out the present invention, each of the N element heads Hat~Han*(Hbl~
For example, the timing of reading signals from the storage device group is set as required, so that the signals to be provided to the storage devices (Hbn) are in a state with a predetermined time delay. You may also do this by doing this.

That is, for each of the N element heads Hal to Han, (Hbl-Hbn) in each rotary head Ha, (Hb), each N storage device element M a 11. in the storage device Ma, (Mb). M a 21. M a 12. M
a22. M a In.

M a2n (M bll, M b2L, M b12.M
b22. The storage device Ma, 2N storage elements M a in (Mb) 11. M a 21. Ma
12. M a 22. M ain.

M a2n (M bll, M b21.M b12.M
b22. Since each of M bin, Mb 2n) is set at a predetermined read start timing for each, the rotating head Ha, (
N element heads Hal to Han, (H
bl to Hbn), each N storage device element M a 11. in the storage device Ma, (Mb). M a 21
．． M a 12. M a 22. M ain.

M a2n (M bll, M b21.M b12.M
b22. M bin, Mb 2n) of each of the N recording signals to be supplied simultaneously from the fourth
They may be in a state in which each predetermined time delay amount is given as described above with reference to the figures.

The two storage devices Ma and M in the storage device group described above
b, during the time rllTs when one of them stores the 17N time-compressed signal, the other one stores the 1/N time-compressed signal stored in it;
It operates to simultaneously output each set of N recording signals 51- as two sets of N recording signals with their time axes expanded by N times. By sequentially and alternately performing these operations, the time axis conversion of the recording signal having the signal form of the 1/N time axis compressed signal sent from the recording signal source is performed, and finally, as described above, can sequentially and simultaneously supply one set of N recording signals to each of the rotary heads Ha and Hb.

FIG. 6 is a plan view ((a) in FIG. 6) showing a schematic configuration of the vicinity of a head cylinder in a recording tape producing apparatus for a rotary head type magnetic recording/reproducing device according to the present invention, and a rotary head according to the present invention. A plan view of a recorded trace pattern of a recorded tape created by a recorded tape creation device for a head-type magnetic recording/reproducing device (No. 65!1(b)) and a plan view of the vicinity of the head cylinder of a standard magnetic recording/reproducing device ((C) in Figure 6)
It is.

At each time in Fig. 6, DI and D2 are the head cylinder I.
(S!l is the diameter of H8, θ1.θ2 is the tape winding angle of the magnetic tape T with respect to the head cylinders H8s and H8, and furthermore, Ll, L252- are the length of the recording area on the magnetic tape T. Furthermore, α is the length of the non-recording area, and the above-mentioned DI,
D2, θ1. The relationships among θ2, α, Ll, L2, etc. are as follows.

L2 = 2L1 + α L1 = DIX θ1 L2 = D2 The diameter D2 of the head cylinder H8 is the diameter D1 of the head cylinder H8g in a standard magnetic recording/reproducing device.
and the tape wrapping angle θ2 with respect to the head cylinder H8 is selected to be more than twice the tape wrapping angle θ1 with respect to the head cylinder HS g in a standard magnetic recording/reproducing device. However, the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus according to the present invention has a head cylinder H8.
The diameter D2 of the head cylinder H8m in the standard magnetic recording/reproducing device is slightly more than twice the diameter D1 of the head cylinder H8m in the standard magnetic recording/reproducing device, and the winding angle θ2 of the tape with respect to the head cylinder H8 in the standard magnetic recording/reproducing device is
In the case where the embodiment device is configured such that the tape wrapping angle θ1 is selected to be equal to s, the 1/N time axis stored in the two storage devices Ma and Mb in the storage device group The compressed signal is output as two sets of N recording signals with the time axis expanded by N/2 times, and each set of N recordings and signals are output simultaneously. At the same time, the predetermined time delay amount to be given to the signal in the delay circuit sections DLa and DLb is also 17 times the predetermined delay amount in the case of the embodiment already described with reference to FIG.
This will be implemented as part 2.

The number of rotations of the rotary head in the above-described apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus of the present invention is the same as the number of rotations of the rotary head in a standard magnetic recording/reproducing apparatus.

Further, the helix angle in the recorded tape production device for a rotary head type magnetic recording/reproducing device of the present invention and the helix angle in a standard magnetic recording/reproducing device are different from each other so that the track angles in both are the same. It is made into a thing.

Next, the recording operation when recording 8 PCM signals on a magnetic tape by the recording tape producing apparatus for a rotary head type magnetic recording/reproducing apparatus of the present invention will be described using two rotary heads Ha each consisting of n element heads. , Hb will be described with reference to a recorded tape producing apparatus for a rotary head type magnetic recording/reproducing apparatus shown in the third figure.

As shown in FIG. 1, the recording trace pattern recorded on the magnetic tape T by the recording tape producing apparatus for a rotary head type magnetic recording/reproducing apparatus of the present invention is divided into two areas Dg, Da, etc. In the apparatus according to the embodiment of the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing apparatus according to the present invention shown in FIG. In the area Dg, there is a recording signal source H8.
A PCM signal of Rg is recorded, and in an area Da on the magnetic tape T, a PCM signal of a recording signal source H5Re is recorded. Although the erase head, control track head, etc. are not shown in FIG. 3, it goes without saying that these heads should be provided if necessary.

The PCM signal sent from the recording signal source H8Rg is sent to the changeover switch SWg, the storage device group MAg, and the changeover switch S.
g, the data conversion device DEXg, and other constituent parts, and are applied to the changeover switch SWa and the changeover switch SWb, and the PCM signal sent from the recording signal source HS Rc is applied to the changeover switch SWc and the storage device group. MAc, changeover switch Sc, data conversion device DEX
What is applied to the changeover switch SWa and the changeover switch SWb through each component such as c has already been explained in detail, and therefore will not be explained again.

In the recorder 56 for a rotary head type magnetic recording/reproducing device shown in FIG. 3, the magnetic tape T is made to run in the direction of the arrow X1 in FIG. If the magnetic tape moves from one end a of the magnetic tape T in FIG. The state of the signal arrangement on the time axis of the signals to be recorded is returned to a state that is not inverted with respect to the state of the signal arrangement on the time axis of the signal sent from the recording signal source H8Rg. , On the other hand, the state of the signal arrangement on the time axis of the signals to be recorded in the area Dc of the magnetic tape T is the state of the signal arrangement on the time axis of the signal sent out from the recording signal source HS Rc by the data exchanger DEXc. It is made in a state that is inverted from the state of the signal arrangement.

N element heads Hal to Han, Hbl each
The two rotating magnetic heads consisting of ~Hbn record the signal of the recording signal source H8Rg in the area Dg while diagonally crossing the magnetic tape T, and record the signal of the recording signal source H8Rc in the area Dc. Record. As mentioned above, the signal of the recording signal source H8Rg can be recorded in the area Dg of the magnetic tape T by each of the two rotary heads Ha and Hb, and the signal of the recording signal source H8Rg can be recorded in the area Dc.
In order to be able to record the signal of 8Rc, changeover switches SWa and SWb are installed so that the recording signals supplied to each rotary head Ha and Hb are switched in accordance with the area where each magnetic head Ha and Hb exists. The movable contact is switched between the fixed contact side connected to the data conversion device DEXg' side and the fixed contact side connected to the data conversion device DEXg side under the control of the control circuit CC. There is.

For example, consider a case where the rotary head Ha starts scanning the magnetic tape T from one end of the magnetic tape T. In this case, the rotary head Ha starts scanning the recording signal source H8Rg for the area Dg. The recording signal created based on the output signal is recorded, and the area DC
On the other hand, the rotary head Ha records a recording signal generated based on the signal sent from the recording signal source H8Rc.

The recording of each of the above-mentioned separate recording signals in the areas Dg and DC by the above-mentioned rotary head Ha is performed by switching the recording signal by the switching operation of the movable contact of the change-over switch SWa and by the gate supplied to the recording amplifier RAa. The operation is performed in a predetermined manner by supplying a recording signal over a predetermined time width by a signal, and the area Dg and area De of the magnetic tape T are recorded in parallel by N element heads Hal to Han in the rotary head Ha. N recording traces are formed in a comb-like shape.

After the rotary head Ha records and forms N recording traces in a comb-like shape in the area Dg and the area Dc, the rotary head Hb records the magnetic tape from one end of the magnetic tape T. Starts scanning the tape T, and rotates the rotating head Hb.
For the area Dg, a recording signal generated based on the signal sent from the recording signal source H8Rg is recorded, and subsequently for the area Dc, the rotary head Hb is
Record 59- The recording signal generated based on the signal sent from the recording signal source HS Rc is recorded, but this rotating head H
The recording operation on the magnetic tape by b is also performed by switching the recording signal by switching the movable contact of the changeover switch SWb, and supplying the recording signal over a predetermined time span by the gate signal supplied to the recording amplifier RAb. Needless to say, this is carried out in a predetermined manner, and N parallel recordings are made in the areas Dg and Dc of the magnetic tape T by the N elements Hbl to Hbn of the rotary head Hb. A state in which marks are recorded and formed, and N recording traces by the one-turn head Hb are recorded and formed in the non-recorded portion between the N parallel recording marks recorded and formed by the one-turn head Ha, that is. , a recorded tape having a trace pattern as shown in FIG. 1 is produced.

(Effects) As is clear from the explanation, the apparatus for producing a recorded tape 60 for a rotary head type magnetic recording/reproducing apparatus of the present invention is capable of producing data from one end of the magnetic tape in 11 directions. The region up to the vicinity of the center is defined as the first region, and the region from the other end in the width direction of the magnetic tape to the vicinity of the center is defined as the second region. In each of the second areas, there is a recording trace of the PCM signal whose starting point is at the end of the magnetic tape in the IJ force direction and the ending point is near the center of the magnetic tape in the direction of the magnetic tape. As a production device for a recorded tape, such as one in which records are formed by within a time length approximately corresponding to the time length of the signal reproduced from one recording trace of the magnetic tape running at the predetermined tape running speed V. , a tape running speed N that is N times the predetermined tape running speed V mentioned above.
Each one of the multi-head format, each consisting of N element heads, is placed on a magnetic tape running at a V speed.
Each rotary head of two rotary heads having different azimuth angles is used sequentially and alternately in such a manner that each rotary head is formed simultaneously. means for simultaneously forming signals by a rotary head type magnetic recording and reproducing device, and a time that is 1/N compared to that of a reproduction signal reproduced from a magnetic tape running at a predetermined tape running speed V during a reproduction operation of a rotary head type magnetic recording and reproducing device. A recording signal generating means that takes into consideration the arrangement of the signals on the time axis so as to be recorded in the first area in an axially compressed state, and a reproducing device of a rotary head type magnetic recording and reproducing device. During operation, the time axis is compressed to 1/N compared to the reproduction signal reproduced from a magnetic tape running at a predetermined tape running speed V, and the time is recorded in the second area described above. A recording signal generating means in which the arrangement of signals on the axis is taken into consideration, and a recording signal generated by the recording signal generating means described above are running at the predetermined tape running speed V. Data is sequentially and alternately stored in two groups of storage devices, each having 2N storage devices, for each time length that approximately corresponds to twice the time length of a signal reproduced from one recording trace on a magnetic tape. and during a period in which recording signals are sequentially written to the 2N storage devices of one group of the two groups of storage devices,
2 of the storage devices of the other group in the above two groups of storage devices
means for reading out the signals respectively stored in the N storage devices as two sets of predetermined N simultaneous signals at a predetermined read timing; Assuming that the signals in the signals have a predetermined temporal relationship with each other, the two sets of simultaneous signals described above are N at each specific rotary head.
Since the present invention is configured to include a means for supplying the tape to each element head, it is difficult to solve the problem in the apparatus for producing a recorded tape for a rotary head type magnetic recording/reproducing device according to the present invention. To make it possible to create a recorded tape for a rotary magnetic recording/reproducing device at high speed. That is, in the production bag and device of the recorded tape for the rotary head type magnetic recording/reproducing device of the present invention, a 1/N time axis compressed signal is used as the recording signal, and the running speed of the magnetic tape at the time of recording the signal is set to N. If you want to be able to perform a high-speed recording operation by multiplying it by 1/N! Since the i3 recording reliable signal axis extension means supplies N simultaneous recording signals whose time axis has been expanded by N times to the N element heads constituting the rotating head. There is no need to use an extremely narrow magnetic gap length as the element head in the head, and it is possible to use an easy-to-manufacture rotary head in which the magnetic gaps of the element head are aligned in a straight line. Furthermore, by using a device composed of a plurality of storage devices as the above-mentioned time axis expansion means, the data from the storage device can be simply The time axis of the signal can be easily expanded by N times by simply setting the period of the clock pulse when reading the information signal to N times. No matter how many rotary heads the recording/reproducing device uses, various advantages can be obtained, such as being able to easily create recorded tapes each having a recording pattern suitable for 64-. Also,
It is extremely easy to create recorded tapes for round trip playback.
According to the present invention, all of the conventional problems mentioned above can be satisfactorily solved.

[Brief explanation of the drawing]

FIG. 1 is a vehicle side view of a recorded trace pattern of a recorded tape created by a recorded tape creating device for a rotary head type magnetic recording/reproducing device of the present invention, and FIG. 2 is a vehicle side view of a recording trace pattern of a recorded tape of the present invention. FIG. 3 is a diagram showing two rotary heads H'a and Hb used in a device for producing a recorded tape and a recording trace pattern (track pattern) formed thereby on a magnetic tape. FIG. 4 is a block diagram of an embodiment of a recording tape producing apparatus for a rotary head type magnetic recording/reproducing apparatus according to the present invention, which is used in the recorded tape producing apparatus for a rotary head type magnetic recording/reproducing apparatus according to the present invention shown in FIG. Due to the structure of the rotary head, there is a time delay τ1. FIG. 5 is a diagram for explaining the PCM signal, and FIG. 6 is a diagram for explaining the PCM signal. FIG. FIG. 3 is a diagram for explaining the relationship. T...magnetic tape, H8, H8s...head cylinder, Ha, Hb-rotating head, Hal~Han, Hb
1~Hb n-element head, HS RG, HS R
c...-recording signal source, CC...control circuit 1MAg
, MAc...Storage device group, Ma, Mb...Storage device, MalMan, Mbl~Mbn, Mall~Ma
ln, Ma21-M a 2n, M b 11-M b
In, M b 21 to M b 2n - storage elements,
S W g , S W c , S W a , S
Wb, Sg, Sc-changeover switch, DEX
g, DEXc-data conversion device, DLa
, DLb...Delay circuit section, TPO...Timing pulse generator, RAa, RAb...Recording amplifier, Patent applicant: Japan Victor Co., Ltd. Agent, Patent attorney: Takao Imama 67- Tokukai Sho Go- 61905 (18)

Claims (1)

[Claims] The area from one side end to the vicinity of the center in the width direction of the magnetic tape is defined as the first area, and the area from the other side edge in the width direction of the magnetic tape to the vicinity of the center is defined as the second area. ．． In each of the second areas, a recording trace is created by the PGM signal such that the start point is at the end of the magnetic tape in the width direction and the end point is near the center of the magnetic tape in the width direction. An apparatus for producing a recorded tape, such as a recording tape, in which a rotating head is sequentially drawn on a magnetic tape running at a predetermined tape running speed V during a playback operation of a rotating head type magnetic recording/reproducing apparatus. N parallel trajectories that match the trajectory are within a time length that approximately corresponds to the time length of the signal reproduced from one recording trace of the magnetic tape running at the predetermined tape running speed V. , the above-mentioned predetermined tape running speed V
On a magnetic tape running at a tape running speed NV that is N times greater than means for simultaneous formation by each rotary head of two rotary heads having different azimuth angles, which are used sequentially and alternately; and a rotary head type. 1/ compared to the reproduction signal reproduced from the magnetic tape running at a predetermined tape running speed V during the reproduction operation of the magnetic recording/reproduction device.
A recording signal generation means in which the time axis is compressed to N and the arrangement of the signals on the time axis is taken into consideration so that the signals are recorded in the first area, and a rotary head type magnetic recording/reproducing device. 1 compared to the playback signal played from a magnetic tape running at a predetermined tape running speed V during playback operation of the device.
/N in a state where the time axis is compressed and the arrangement of the signals on the time axis is taken into consideration so as to be recorded in the second area, and the recording signal as described above. The recording signal generated by the generating means is transmitted for a time approximately corresponding to twice the time length of the signal reproduced from one recording trace of the magnetic tape running at the predetermined tape running speed V. means for sequentially and alternately storing each length in two groups of storage devices each having 2N storage devices, and 2N storage devices in one of the two groups of storage devices; During a period in which recording signals are sequentially written to the storage devices, the signals stored in each of the 2N storage devices of the other group of storage devices in the two groups of storage devices are written in advance. A means for reading out two sets of predetermined N simultaneous signals at a predetermined read timing, and a means for reading out two sets of N simultaneous signals at a predetermined read timing; It is assumed that the two sets of simultaneous signals described above are related to each other.
A recording tape producing apparatus for a rotary head type magnetic recording/reproducing device, comprising means for supplying the tape to N element heads in N rotary heads.