JP2009026373A - Head device, drive device, and recording and reproducing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a head device that simplifies the structure of a winding mechanism for winding a magnetic tape around a rotary drum, and correctly records a signal using a plurality of magnetic tapes having different tape widths. <P>SOLUTION: An outer circumferential portion of the rotary drum 52 is divided into a plurality of portions in a thickness direction thereof. As a result, N (N is a natural number of 1 or more: e.g., 2) recording heads 53a to 53d are provided in each of a first annular region 61a and a second annular region 61b that are annular along a circumferential direction of the rotary drum 52. A signal can be recorded onto a recording surface of the magnetic tape by a helical scan method. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a head device that performs signal recording and reproduction by a helical scan method, a drive device that includes the head device, and a recording and reproduction method that performs signal recording and reproduction by a helical scan method.

As this type of drive apparatus, a magnetic recording / reproducing apparatus disclosed in Japanese Patent Application Laid-Open No. 2005-158156 is known. This magnetic recording / reproducing apparatus includes a rotary drum device having a rotary drum provided with a plurality of magnetic heads, a tape loading mechanism having four guide rollers, and the like. When the wide magnetic tape and the narrow magnetic tape are not distinguished from each other, the magnetic recording / reproducing process can be executed on both of them. In this magnetic recording / reproducing apparatus, when a tape cartridge containing a wide magnetic tape is set, two guide rollers for the wide magnetic tape pull out the wide magnetic tape from the tape cartridge and wind it around a rotating drum (appendix). Contact). Next, when the motor rotates the rotating drum, the magnetic recording / reproducing process for the wide magnetic tape is executed by the magnetic head disposed on the rotating drum. On the other hand, when the tape cartridge containing the narrow magnetic tape is set in the magnetic recording / reproducing apparatus, the two guide rollers for the narrow magnetic tape pull out the narrow magnetic tape from the tape cartridge and wind it around the rotating drum. . Next, when the motor rotates the rotating drum, the magnetic recording / reproducing process for the narrow magnetic tape is executed by the magnetic head disposed on the rotating drum.
Japanese Patent Laying-Open No. 2005-158156 (page 6-8, FIG. 1-2)

  However, the above magnetic recording / reproducing apparatus has the following problems. That is, in this type of drive device including the magnetic recording / reproducing device described above, it is necessary to switch the guide roller used for drawing out the magnetic tape and winding the magnetic tape around the rotating drum in accordance with the tape width of the magnetic tape. On the other hand, in this type of drive device, as shown in FIGS. 24 and 25, the rotary drum 252 is disposed on the rotary drum 252 while rotating while being inclined with respect to the moving direction (length direction) of the magnetic tape 103. The recorded magnetic head records a signal on the magnetic tape 103. For this reason, a signal is recorded on the magnetic tape 103 along the trajectory of the magnetic head that moves as the rotary drum 252 rotates (inclined belt-like portion shown in both figures) (hereinafter, the rotary drum rotates once). A portion in which a signal is recorded by one magnetic head (a band-like portion described above) is also referred to as “track T”).

  24 and 25, the track length in the wide magnetic tape (the length of the track T in the magnetic tape 103b shown in FIG. 25) is the track length in the narrow magnetic tape (the magnetic tape 103a shown in FIG. 24). The length of the tape T is longer than the length of the track T). In this case, the rotational speed (rotational speed) of the rotating drum is constant regardless of the tape width. For this reason, when recording a signal on a wide magnetic tape (the magnetic tape 103b shown in FIG. 25), the winding length to be wound around the rotary drum 252 is increased by a length corresponding to the long track length (shown in FIG. 24). It is longer than (for example, the length of about 1/4 of the length along the outer peripheral surface of the rotating drum 252) when the signal is recorded on the magnetic tape 103a) (for example, the outer peripheral surface of the rotating drum 252). Need to be about half the length along That is, as shown in FIG. 26, not only the guide roller 221 is switched according to the tape width of the magnetic tapes 103a and 103b, but actually the guide rollers are used to change the winding length of the magnetic tapes 103a and 103b around the rotating drum. It is also necessary to switch the moving direction and moving distance of the roller 221. Therefore, in this type of drive device including the above magnetic recording / reproducing device, the structure of the winding mechanism (tape loading mechanism) is extremely complicated, and improvement of this point is desired. Further, when the contact length of the magnetic tape 103 with respect to the rotating drum 252 is increased, the frictional resistance between the rotating drum 252 and the magnetic tape 103 is increased. For this reason, in this type of drive device, the magnetic tape is moved in the rotational direction of the rotating drum 252 (upwardly or downwardly with respect to the moving direction of the magnetic tape 103) by this frictional resistance so that the magnetic tape 103 is positioned. There is also a problem that the recording and reproduction of signals may be inaccurate due to deviation.

  The present invention has been made in view of such problems, and the structure of a winding mechanism for winding a magnetic tape around a rotating drum can be simplified, and a plurality of types of magnetic tapes having different tape widths are used. The main object of the present invention is to provide a head device, a drive device, and a recording / reproducing method capable of accurately recording and reproducing all signals.

  In order to achieve the above object, a head device according to the present invention includes a rotating drum and a recording head disposed on an outer peripheral portion of the rotating drum, and records signals on a recording surface of a magnetic tape by a helical scan method. In the head device, the recording head is arranged in each annular region in which the outer peripheral portion is divided into a plurality in the thickness direction of the rotary drum and is annular along the circumferential direction of the rotary drum. Each (N is a natural number of 1 or more) is provided.

  In this case, a plurality of the recording heads are arranged in each annular region of the rotating drum, and the recording heads are arranged along the same circumference around the rotation center axis of the rotating drum in each annular region. A configuration arranged at intervals can be employed.

  The head device according to the present invention includes a rotating drum and a reproducing head disposed on the outer periphery of the rotating drum, and reproduces a signal recorded on the recording surface of the magnetic tape by a helical scan method. The rotating drum includes a plurality of outer peripheral portions that are divided in a thickness direction of the rotating drum, and the reproducing head is arranged in each annular region that is annular along the circumferential direction of the rotating drum. Each (N is a natural number of 1 or more) is provided.

  In this case, a plurality of the reproducing heads are arranged in each annular region of the rotating drum, and the reproducing heads are arranged along the same circumference around the rotation center axis of the rotating drum in each annular region. A configuration arranged at intervals can be employed.

  The head device according to the present invention includes a rotating drum, and a recording head and a reproducing head disposed on an outer peripheral portion of the rotating drum, and records signals on the recording surface of the magnetic tape and records on the recording surface. The signal is reproduced by a helical scan method in the head device, and the rotating drum is divided into a plurality of outer peripheral portions in the thickness direction of the rotating drum along the circumferential direction of the rotating drum. N recording heads (N is a natural number of 1 or more) are disposed in each annular region, and N reproducing heads are disposed in each annular region.

  In this case, a plurality of the recording heads and the reproducing heads are arranged in each annular area of the rotating drum, and the recording head and the reproducing head are arranged with the rotation center axis of the rotating drum in each annular area. It is possible to adopt a configuration in which they are arranged at equal intervals along the same circumference as the center.

  A drive device according to the present invention provides the head device according to claim 1, the winding mechanism for winding the magnetic tape around a rotating drum of the head device, and the plurality of types of magnetic tapes having different tape widths. And a head control unit that executes a recording process for causing the head device to perform signal recording, wherein the winding mechanism is respectively applied to each type of magnetic tape at the time of execution of the recording process. A first recording process in which the recording unit is wound around the rotating drum with the same winding length, and the head control unit causes the recording head disposed in one of the annular regions to record the signal on the recording surface. And dividing the recording surface into a plurality of bands in the width direction of the magnetic tape, and each band-shaped area having a band shape along the length direction of the magnetic tape. The second recording process for causing the recording heads disposed in the annular areas respectively associated with the different band-like areas to perform recording of the signal as the recording process. Switch according to the execution.

  According to another aspect of the present invention, there is provided a drive device that records on the head device according to claim 3 or 4, a winding mechanism that winds the magnetic tape around a rotating drum of the head device, and a plurality of types of magnetic tapes having different tape widths. And a head control unit that executes a reproduction process for causing the head device to reproduce the signal that is being reproduced, wherein the winding mechanism is configured to perform the reproduction of the various types of magnetic tapes. The head controller is configured to reproduce the signal recorded on the recording surface in one of the annular areas. A first reproduction process to be performed by the head, and the recording surface is divided into a plurality of sections in the width direction of the magnetic tape, and becomes a strip shape along the length direction of the magnetic tape. A second reproduction process for causing the reproduction heads arranged in the annular regions respectively associated with the different band-like regions to reproduce the signals recorded in the respective belt-like regions, respectively. The reproduction process is executed by switching according to the type of the magnetic tape.

  According to another aspect of the present invention, there is provided a drive device for the head device according to claim 5 or 6, a winding mechanism for winding the magnetic tape around the rotating drum of the head device, and a plurality of types of magnetic tapes having different tape widths. And a head control unit that executes a recording process for causing the head device to record the signal and a reproducing process for causing the head device to reproduce the signal recorded on each magnetic tape. The winding mechanism winds the rotating drum with the same winding length with respect to each type of magnetic tape when the recording process is performed and when the reproducing process is performed, and the head control unit First recording for causing the recording head disposed in one of the annular regions to record the signal. The recording surface is divided into a plurality of bands in the width direction of the magnetic tape, and the recording of the signal for each band-shaped area that is band-shaped along the length direction of the magnetic tape corresponds to each different band-shaped area. A second recording process to be performed by each of the recording heads disposed in each of the attached annular areas is performed as the recording process by switching according to the type of the magnetic tape, and recorded on the recording surface. The first reproduction process for causing the reproduction head disposed in one of the annular areas to reproduce the signal and the reproduction of the signals recorded in the respective band-like areas are mutually performed. A second reproduction process to be performed by each of the reproducing heads disposed in the respective annular areas respectively associated with the different band-like areas is referred to as the magnetic field as the reproduction process. To perform switching in accordance with the type of over-flops.

  In the recording / reproducing method according to the present invention, the outer peripheral portion of the rotating drum is divided into a plurality of portions in the thickness direction of the rotating drum, and N recording heads are provided in each annular region that is annular along the circumferential direction of the rotating drum. (N is a natural number equal to or greater than 1) are arranged one by one, and a magnetic tape is wound around the rotating drum in a head device in which N reproducing heads are arranged in each annular region, and a plurality of types having different tape widths. A recording process for recording a signal on the recording surface of the magnetic tape and a recording / reproducing method for performing a reproducing process for reproducing the signal recorded on the recording surface by a helical scan method, wherein the recording process is performed. When the reproduction process is performed, the magnetic tape of each type is wound around the rotary drum with the same winding length, and the signal to the recording surface is Recording is performed by the recording head disposed in one of the annular regions, and the recording surface is partitioned into a plurality of portions in the width direction of the magnetic tape. Second recording for causing the recording heads disposed in the respective annular areas respectively associated with the respective band-like areas different from each other to perform recording of the signal to the respective band-like areas that are band-shaped along the length direction. The process is switched and executed as the recording process according to the type of the magnetic tape, and the reproduction of the signal recorded on the recording surface is arranged in one of the annular regions. The first reproduction process to be performed by the reproduction head and the reproduction of the signals recorded in the respective band-like areas are arranged in the respective annular areas respectively associated with the different band-like areas. Is run by switching in accordance with the second reproduction process the causes each reproducing head is the type of the magnetic tape as the regeneration process.

  According to the head device and the drive device of the present invention, the outer peripheral portion of the rotating drum is divided into a plurality of portions in the thickness direction of the rotating drum, and N recording heads are provided in each annular region that is annular along the circumferential direction of the rotating drum. For example, for a magnetic tape with a narrow tape width, the recording head arranged in one of the annular regions is used for a magnetic tape with a small tape width. By using this recording head, signals can be recorded using a plurality of types of magnetic tapes having different tape widths without changing the winding length of the magnetic tape around the rotating drum. Therefore, according to the head device and the drive device, different guide rollers are used according to the tape width, and compared with the conventional drive device that varies the winding length of the magnetic tape around the rotating drum according to the tape width, The structure of the winding mechanism can be sufficiently simplified. In addition, according to the head device and the drive device, the winding length when using a magnetic tape with a wide tape width can be set to a winding length as short as the winding length when using a magnetic tape with a narrow tape width. As compared with a conventional drive device that requires a longer winding length as the tape width is wider, it is possible to sufficiently suppress the positional deviation of the magnetic tape due to the frictional resistance with the rotating drum. Therefore, according to the head device and the drive device, signal recording can be performed sufficiently accurately.

  Further, according to the head device and the drive device according to the present invention, the plurality of recording heads are arranged at equal intervals along the same circumference around the rotation center axis of the rotary drum in each annular region. By adjusting the moving speed and the rotating speed of the rotating drum, the signal can be recorded with the tracks in close contact with each other at equal intervals, and as a result, the recording density can be sufficiently increased.

  Further, according to the head device and the drive device according to the present invention, since N reproducing heads are arranged in each annular region, for example, for a magnetic tape having a narrow tape width, one of the annular regions. By using all the reproducing heads for a magnetic tape having a wide tape width, the tape widths are different from each other without changing the winding length of the magnetic tape around the rotating drum. Signals can be reproduced using a plurality of types of magnetic tape. Therefore, according to the head device and the drive device, the structure of the winding mechanism can be sufficiently simplified as compared with the conventional drive device. Further, according to the head device and the drive device, the winding length when using a magnetic tape having a wide tape width can be set to a winding length as short as the winding length when using a magnetic tape having a narrow tape width. Compared with the conventional drive device, the positional deviation of the magnetic tape due to the frictional resistance with the rotating drum can be suppressed sufficiently low. Therefore, according to the head device and the drive device, the signal can be reproduced sufficiently accurately.

  Further, according to the head device and the drive device of the present invention, the magnetic tape is obtained by arranging a plurality of reproducing heads at equal intervals along the same circumference around the rotation center axis of the rotating drum in each annular region. By adjusting the moving speed and the rotating speed of the rotating drum, it is possible to surely reproduce a signal recorded in a state where the tracks are closely spaced and in close contact with each other.

  Further, according to the head device, the drive device, and the recording / reproducing method of the present invention, a head device in which N recording heads are arranged in each annular area and N reproducing heads are arranged in each annular area is used. For example, for a magnetic tape having a narrow tape width, the tape width can be increased by using a recording head and a reproducing head arranged in one of the annular regions. By using all recording heads and playback heads for magnetic tapes, recording and playback of signals using multiple types of magnetic tapes with different tape widths is possible without changing the winding length of the magnetic tape around the rotating drum. It can be performed. Therefore, according to the head device and the drive device, the structure of the winding mechanism can be sufficiently simplified as compared with the conventional drive device. Further, according to the head device and the drive device, the winding length when using a magnetic tape having a wide tape width can be set to a winding length as short as the winding length when using a magnetic tape having a narrow tape width. Compared with the conventional drive device, the positional deviation of the magnetic tape due to the frictional resistance with the rotating drum can be suppressed sufficiently low. Therefore, according to the head device, the drive device, and the recording / reproducing method, the signal can be recorded and reproduced sufficiently accurately.

  Further, according to the head device and the drive device according to the present invention, a plurality of recording heads and reproducing heads are arranged at equal intervals along the same circumference around the rotation center axis of the rotating drum in each annular region. By adjusting the moving speed of the magnetic tape and the rotating speed of the rotating drum, it is possible to record the signal with the recording density sufficiently increased by making the tracks equally spaced and in close contact with each other and recording in that state. The signal can be reliably reproduced.

  The best mode of a head device, a drive device and a recording / reproducing method according to the present invention will be described below with reference to the accompanying drawings.

  First, the configuration of the drive device 1 shown in FIG. 1 will be described. The drive device 1 is an example of the drive device according to the present invention, and is referred to as information media 100a and 100b (see FIGS. 2 to 4; hereinafter, “information medium 100” unless otherwise distinguished) according to the recording / reproducing method according to the present invention. ) On the magnetic tape 103 (hereinafter also referred to as “signal Sr”) and reproduction of the signal Sr recorded on the magnetic tape 103 can be executed.

  Here, the information medium 100 is, for example, an information medium used as a storage device for backing up data. As shown in FIGS. 2 to 4, the case 101 and a pair of cases accommodated in the case 101 The tape reels 102 and 102 and a magnetic tape 103 wound around the tape reel 102 are provided. In this case, the information medium 100a includes, for example, a magnetic tape 103 with a tape width of 3.81 mm (hereinafter, this magnetic tape 103 is also referred to as “magnetic tape 103a”), and the information medium 100b includes, for example, a tape width. Is provided with an 8 mm magnetic tape 103 (hereinafter, this magnetic tape 103 is also referred to as “magnetic tape 103b”).

  On the other hand, as shown in FIG. 1, the drive device 1 includes a loading mechanism 2, a winding mechanism 3, a first motor 4a, a second motor 4b, a third motor 4c, and a fourth motor 4d (hereinafter, each motor 4a, 4b). 4c and 4d are also referred to as “motor 4”), the head device 5, the head control unit 6, the operation unit 7, the sensor 8, and the main control unit 9 are provided.

  The loading mechanism 2 loads (loads) the information medium 100 so that the rotation shafts (not shown) of the first motor 4 a and the second motor 4 b are inserted into the center hole of the tape reel 102 according to the control of the main control unit 9. ) As shown in FIGS. 5 and 6, the winding mechanism 3 includes a plurality of guide rollers 21 and a moving mechanism (not shown) that moves the guide rollers 21, and follows the control of the main control unit 9. The magnetic tape 103 is pulled out from the information medium 100, and the magnetic tape 103 is wound around the head device 5 (a rotating drum 52 described later). In this case, the winding mechanism 3 winds the magnetic tapes 103a and 103b using the same guide roller 21 regardless of the type of the magnetic tape 103 (the tape width of the magnetic tape 103). In addition, the winding mechanism 3 has the same winding length for each of the magnetic tapes 103a and 103b regardless of the type of the magnetic tape 103 (for example, about 1/4 of the length along the outer peripheral surface of the rotating drum 52). The guide roller 21 is moved so as to be wound around the rotary drum 52 by a length of 2. Therefore, in this drive device 1, different guide rollers 221 are used according to the type (tape width) of the magnetic tape 103, and the winding length of the magnetic tape 103 around the rotating drum 252 is different according to the type of the magnetic tape 103. The structure of the winding mechanism 3 is sufficiently simplified as compared with the conventional drive device.

  The first motor 4a feeds the magnetic tape 103 by rotating the tape reel 102 of the information medium 100 through which the rotation shaft is inserted. The second motor 4b winds the magnetic tape 103 by rotating the rotating shaft. The third motor 4c rotates the capstan 22 (see FIGS. 5 and 6) at a predetermined rotational speed, thereby causing the magnetic tape 103 sandwiched between the capstan 22 and the pinch roller 23 (see both drawings) to move. Move at a predetermined speed. The fourth motor 4 d rotates the rotary drum 52 of the head device 5.

  The head device 5 is an example of a head device according to the present invention. As shown in FIGS. 5 and 6, a fixed drum 51, a rotary drum 52, four recording heads 53a to 53d (hereinafter referred to as “recording head” when not distinguished from each other). 53 ”) and four reproducing heads 54a to 54d (hereinafter also referred to as“ reproducing head 54 ”when not distinguished), recording of the signal Sr on the magnetic tape 103 and signals recorded on the magnetic tape 103 Sr is reproduced by the helical scan method. The fixed drum 51 is formed in a cylindrical shape and is fixed to a base portion (not shown) of the drive device 1.

  As shown in FIGS. 5 and 6, the rotary drum 52 is formed in a cylindrical shape and is rotatably attached to the fixed drum 51 so as to be inclined with respect to the moving direction (length direction) of the magnetic tape 103. ing. As shown in FIG. 7, the recording heads 53 a to 53 d are arranged on the outer peripheral portion of the rotary drum 52, and a signal Sr output from the head control unit 6 is sent to the recording surface 104 of the magnetic tape 103 (see FIGS. 5 and 6). ). In this case, as shown in FIG. 7, two of the four recording heads 53 (for example, the recording heads 53a and 53c) have two outer peripheral portions of the rotating drum 52 in the thickness direction of the rotating drum 52 (the present invention). One of the first annular region 61a and the second annular region 61b (hereinafter also referred to as “annular region 61” when not distinguished from each other). In the example, it is arranged in the first annular region 61a). The other two of the four recording heads 53 (for example, the recording heads 53b and 53d) are disposed on the other of the annular regions 61 (in this example, the second annular region 61b). That is, in the rotary drum 52, two recording heads 53 (one example of N in the present invention) are arranged in each annular region 61. The recording heads 53 are arranged at equal intervals along the same circumference (circumferences C1 and C2 indicated by a one-dot chain line in the figure) around the rotation center axis A of the rotary drum 52 in each annular region 61. That is, they are arranged at positions facing each other across the rotation center axis A.

  As shown in FIG. 7, the reproducing heads 54 a to 54 d are arranged on the outer peripheral portion of the rotary drum 52, reproduce the signal Sr recorded on the recording surface 104 of the magnetic tape 103, and output it to the head controller 6. To do. In this case, two of the four reproducing heads 54 (for example, the reproducing heads 54a and 54c) are disposed in one of the annular regions 61 (in this example, the first annular region 61a). Further, the other two of the four reproducing heads 54 (for example, the reproducing heads 54b and 54d) are disposed in the other of the annular regions 61 (in this example, the second annular region 61b). That is, in the rotary drum 52, two reproducing heads 54 (N examples in the present invention) are provided in each annular region 61. In addition, the respective reproducing heads 54 are arranged at equal intervals along the same circumference (circumferences C1 and C2 indicated by a one-dot chain line in the figure) around the rotation center axis A of the rotary drum 52 in each annular region 61. That is, they are arranged at positions facing each other across the rotation center axis A.

  In this case, in the head device 5, as shown in FIG. 7, the recording heads 53 and the reproducing heads 54 are arranged at equal intervals along the same circumferences C1 and C2 in the annular regions 61. Yes. That is, in this head device 5, the virtual straight line L1 connecting the recording heads 53a and 53c facing each other and the virtual straight line L2 connecting the reproducing heads 54a and 54c facing each other are orthogonal and the recording heads 53b, 53b facing each other. When the virtual straight line L3 connecting 53d and the virtual straight line L4 connecting the reproducing heads 54b and 54d facing each other are orthogonal to each other and the fixed drum 51 is viewed from above (the upper side in the figure), the virtual straight line L1 and the virtual straight line L1 The recording heads 53 and the reproducing heads 54 are arranged so that the straight line L3 overlaps and the virtual straight line L2 and virtual line L4 overlap.

  The head control unit 6 controls the recording head 53 and the reproduction head 54 of the head device 5 according to the control of the main control unit 9. Specifically, the head control unit 6 outputs a signal Sr input from an external device to the recording head 53, and executes a first recording process and a second recording process, which will be described later, to thereby generate a signal Sr for the magnetic tape 103. Recording is performed by the recording head 53. In addition, the head control unit 6 causes the reproducing head 54 to reproduce a signal recorded on the magnetic tape 103 by executing a first reproduction process and a second reproduction process described later. The operation unit 7 includes various switches, and outputs an operation signal So according to the operation of these switches. The sensor 8 outputs a detection signal Sd when the information medium 100 is inserted into the insertion slot of the drive device 1. The sensor 8 outputs a specific signal Si that can specify whether the loaded information medium 100 is the information medium 100a or the information medium 100b (that is, the type of the information medium 100). The main control unit 9 controls each component constituting the drive device 1 according to the operation signal So output from the operation unit 7, the detection signal Sd output from the sensor 8, and the specific signal Si.

  Next, a method for recording and reproducing the signal Sr using the drive device 1 and the information medium 100 will be described with reference to the drawings.

  For example, when recording the signal Sr using the information medium 100a provided with the magnetic tape 103a having a tape width of 3.81 mm, the information medium 100a is inserted from the insertion port of the drive device 1 toward the inside of the device. At this time, the sensor 8 detects the insertion of the information medium 100a and outputs a detection signal Sd. In response to this, the main control unit 9 controls the loading mechanism 2 to cause the information medium 100 to be loaded. In this case, the loading mechanism 2 moves the information medium 100 a so that the rotation shafts of the first motor 4 a and the second motor 4 b are inserted into the center hole of the tape reel 102 after the information medium 100 a is drawn inside. Next, the recording start switch of the operation unit 7 is operated. Subsequently, the main control unit 9 controls the winding mechanism 3 according to the operation signal So output from the operation unit 7 to cause the magnetic tape 103a to be wound. At this time, the winding mechanism 3 moves each guide roller 21 to draw out the magnetic tape 103a from the information medium 100a, and at the same time, the magnetic tape 103a is placed on the rotary drum 52 of the head device 5 as shown in FIGS. Wrap. In this case, in the winding mechanism 3, the winding length of the magnetic tape 103 a (the length of the magnetic tape 103 a brought into contact with the outer peripheral surface of the rotating drum 52) is 1 of the length of one turn along the outer peripheral surface of the rotating drum 52. The guide roller 21 is moved so as to be about / 4. Here, in the drive device 1, as described above, the structure of the winding mechanism 3 is sufficiently simplified as compared with the conventional drive device. For this reason, the trouble that the magnetic tape 103a is entangled during winding and the occurrence of the failure of the winding mechanism 3 itself are sufficiently suppressed.

  Next, the main controller 9 controls the third motor 4c to move the magnetic tape 103a at a predetermined speed, and controls the first motor 4a and the second motor 4b to feed and take up the magnetic tape 103a. Let it be done. The main controller 9 controls the fourth motor 4d to rotate the rotating drum 52 of the head device 5. Subsequently, the main control unit 9 determines that the loaded information medium 100 is the information medium 100a based on the specific signal Si output from the sensor 8, and performs a first recording process on the head control unit 6. Is executed. In the first recording process, the head controller 6 sends a signal Sr to the recording heads 53a and 53c disposed in one of the annular regions 61 of the rotary drum 52 (for example, the first annular region 61a). And the recording heads 53a and 53c record the signal Sr on the recording surface 104 of the magnetic tape 103a. In this case, the recording heads 53a and 53c record the signal Sr on the recording surface 104 while moving with the rotation of the rotary drum 52, as shown in FIGS. In both figures and FIGS. 13 and 14 to be described later, the movement of the rotary drum 52 and the magnetic tape 103 and the state in which the signal Sr is recorded are shown in a front view and a plan view for easy understanding of the invention. . In each of these drawings, the reproducing heads 54a to 54d are not shown. 8 to 23 show the state on the recording surface 104 side located on the back side of the paper in each figure as seen through the magnetic tape 103.

  Specifically, for example, as shown in FIG. 8, while the rotary drum 52 is rotated 1/4 (90 °), the recording head 53a is moved from the lower left side to the upper right side in accordance with the rotation. The signal Sr is recorded on the recording surface 104 for one track T along the locus of the recording head 53a. In this case, the recording head 53b passes above the magnetic tape 103a. Next, while the rotary drum 52 further rotates 1/4, each recording head 53 does not come into contact with the recording surface 104, so that the signal Sr is not recorded on the recording surface 104. Subsequently, as shown in FIG. 9, while the rotary drum 52 further rotates by ¼, the recording head 53c moves from the lower left side to the upper right side along with the rotation, and the signal along the locus of the recording head 53c. Sr is further recorded on the recording surface 104 for one track T. In this case, the recording head 53d passes above the magnetic tape 103a.

  Next, while the rotary drum 52 further rotates 1/4, each recording head 53 does not come into contact with the recording surface 104, so that the signal Sr is not recorded on the recording surface 104. As a result, the signal Sr for two tracks T is recorded on the recording surface 104 of the magnetic tape 103a while the rotary drum 52 makes one rotation. Thereafter, by repeating the above operation, as shown in FIG. 10, the signal Sr is recorded with a large number of tracks T aligned on the recording surface 104 of the magnetic tape 103a by the recording heads 53a and 53c. That is, in the first recording process, the recording of the signal Sr on the recording surface 104 of the magnetic tape 103a is performed by the two recording heads 53a and 53c disposed in one annular area 61 (in this case, the first annular area 61a). Only done by.

  On the other hand, when the recording of the signal Sr is finished, the stop switch of the operation unit 7 is operated. Subsequently, the main control unit 9 causes the head control unit 6 to end the first recording / reproducing process and stops the motors 4a to 4d according to the operation signal So. Further, the main controller 9 causes the winding mechanism 3 to release the winding of the magnetic tape 103a, and then causes the loading mechanism 2 to move the information medium 100a to the insertion port side.

  Next, when reproducing the signal Sr recorded on the magnetic tape 103a of the information medium 100a, the information medium 100a is inserted from the insertion port of the drive device 1 toward the inside of the device. At this time, the main control unit 9 causes the loading mechanism 2 to load the information medium 100a according to the detection signal Sd output from the sensor 8. Next, the reproduction start switch of the operation unit 7 is operated. Subsequently, the main control unit 9 performs winding of the magnetic tape 103a by performing the same control as the above-described control on the winding mechanism 3 and each motor 4 according to the operation signal So, and at the same time, the magnetic tape 103a. Move, send out and wind up.

  Next, the main control unit 9 determines that the loaded information medium 100 is the information medium 100a based on the specific signal Si output from the sensor 8, and executes the first reproduction process for the head control unit 6. Let In the first reproduction process, the head controller 6 applies magnetic force to the reproduction heads 54a and 54c disposed in one of the annular regions 61 (for example, the first annular region 61a) of the rotary drum 52. The signal Sr recorded on the recording surface 104 of the tape 103a is reproduced. In this case, the reproducing heads 54a and 54c reproduce the signal Sr while moving with the rotation of the rotating drum 52, as shown in FIGS. In both figures and FIGS. 16 and 17, which will be described later, the movement of the rotary drum 52 and the magnetic tape 103 and the manner in which the signal Sr is reproduced are shown in a front view and a plan view for easy understanding of the invention. . In each of these drawings, the recording heads 53a to 53d are not shown.

  Specifically, for example, as shown in FIG. 11, while the rotating drum 52 is rotated by a quarter (90 ° rotation), the reproducing head 54a moves along the track T from the lower left side in FIG. Moving to the upper right side, the signal Sr for one track T is reproduced by the reproducing head 54a. In FIG. 12 and FIGS. 12, 16, and 17, the reproduced track T is shown in a black belt shape. In this case, the reproducing head 54b passes above the magnetic tape 103a. Next, while the rotating drum 52 further rotates 1/4, each reproducing head 54 does not come into contact with the recording surface 104, so that the signal Sr is not reproduced. Subsequently, as shown in FIG. 12, while the rotating drum 52 further rotates by 1/4, the reproducing head 54c moves along the track T along with the rotation, and the signal Sr for one track T is reproduced. It is reproduced by the head 54c. In this case, the reproducing head 54d passes above the magnetic tape 103a.

  Next, while the rotating drum 52 further rotates 1/4, each reproducing head 54 does not come into contact with the recording surface 104, so that the signal Sr is not reproduced. Thereby, the signal Sr for two tracks T recorded on the recording surface 104 is reproduced while the rotary drum 52 makes one rotation. Thereafter, by repeating the above operation, signals Sr for a number of tracks T recorded on the recording surface 104 are reproduced by the reproducing heads 54a and 54c. In other words, in this first reproduction process, reproduction of the signal Sr recorded on the recording surface 104 of the magnetic tape 103a is reproduced in two annular regions 61 (in this case, the first annular region 61a). This is performed only by the heads 54a and 54c.

  Next, when recording the signal Sr using the information medium 100b including the magnetic tape 103b having a tape width of 8 mm, the information medium 100b is inserted from the insertion port of the drive device 1 toward the inside of the device. At this time, the main control unit 9 causes the loading mechanism 2 to load the information medium 100b in accordance with the detection signal Sd output from the sensor 8. Next, the recording start switch of the operation unit 7 is operated. Subsequently, the main control unit 9 performs winding of the magnetic tape 103b by performing the same control as the above-described control on the winding mechanism 3 according to the operation signal So. In this case, the winding mechanism 3 causes the magnetic tape 103b to be wound with the same winding length (about 1/4 of the length along the outer peripheral surface of the rotating drum 52) as the winding length when the magnetic tape 103a is wound. It is wound around the rotating drum 52. Further, the main control unit 9 controls the motors 4 to move, send out and take up the magnetic tape 103b.

  Next, the main control unit 9 determines that the loaded information medium 100 is the information medium 100b based on the specific signal Si output from the sensor 8, and executes the second recording process on the head control unit 6. Let In the second recording process, the head controller 6 outputs a signal Sr to each of the recording heads 53a to 53d, and records the signal Sr on the recording surface 104 of the magnetic tape 103b on each of the recording heads 53a to 53d. Make it. In this case, the head controller 6 divides the recording surface 104 into two in the width direction of the magnetic tape 103b (a plurality of examples in the present invention) and forms a first belt shape along the length direction of the magnetic tape 103b. The recording of the signal Sr for the first belt-like region 105a out of the region 105a and the second belt-like region 105b (see FIG. 13: hereinafter, also referred to as “band-like region 105”) is arranged in the first annular region 61a. Recording heads 53a and 53c. Further, the head controller 6 causes the recording heads 53b and 53d disposed in the second annular area 61b to record the signal Sr on the second belt-like area 105b. That is, in the second recording process, the head controller 6 records the signal Sr for each band-like area 105 on the recording head 53 disposed in the annular area 61 that is associated with each different band-like area 105. Let each do. In this case, the recording heads 53a to 53d record the signal Sr on the recording surface 104 while moving with the rotation of the rotary drum 52, as shown in FIG.

  Specifically, for example, as shown in FIG. 13, while the rotary drum 52 is rotated 1/4 (90 °), the recording heads 53a and 53b are moved from the lower left side to the upper right side in the same drawing. As a result, the signal Sr is recorded in both belt-like areas 105 for one track T (a total of two tracks T) along the locus of movement of the recording heads 53a and 53b. Next, while the rotary drum 52 further rotates 1/4, each recording head 53 does not come into contact with the recording surface 104, so that the signal Sr is not recorded on the recording surface 104. Subsequently, as shown in FIG. 14, while the rotating drum 52 further rotates by ¼, the signal Sr is applied to the two belt-like regions 105 by one track T along the locus of movement of the recording heads 53c and 53d accompanying the rotation. Further recording is performed for each minute (for a total of 2 tracks T). Next, while the rotary drum 52 further rotates 1/4, each recording head 53 does not come into contact with the recording surface 104, so that the signal Sr is not recorded on the recording surface 104.

  As a result, the signal Sr for 2 tracks T (a total of 4 tracks T) is recorded in each of the belt-like regions 105 while the rotating drum 52 makes one rotation. That is, in the second recording process, the signal Sr is recorded at a speed twice that of the first recording process described above, and a signal twice as much signal per unit length is recorded on the recording surface 104 of the magnetic tape 103a. Sr is recorded. Thereafter, by repeating the above operation, as shown in FIG. 15, the recording heads 53a to 53d record the signal Sr in a state where many tracks T are arranged on the recording surface 104 of the magnetic tape 103b. That is, in the second recording process, the recording of the signal Sr on the magnetic tape 103 b is performed by all the recording heads 53 a to 53 d provided on the rotary drum 52. In this case, in this drive device 1, the magnetic tape 103 b is wound around the rotary drum 52 with a short winding length that is the same as the winding length when the magnetic tape 103 a having a narrow tape width is wound. For this reason, as compared with the conventional drive device in which the winding length needs to be increased as the tape width is wider, the positional deviation of the magnetic tape 103b due to the frictional resistance between the rotary drum 52 and the magnetic tape 103b is sufficiently increased. It can be kept low. Therefore, the signal Sr can be recorded sufficiently accurately.

  On the other hand, when the recording is finished, the stop switch of the operation unit 7 is operated. Subsequently, the main control unit 9 causes the head control unit 6 to end the first recording / reproducing process and stops the motors 4a to 4d according to the operation signal So. Further, the main control unit 9 causes the winding mechanism 3 to release the winding of the magnetic tape 103b, and then causes the loading mechanism 2 to move the information medium 100b to the insertion port side.

  Next, when reproducing the signal Sr signal recorded on the magnetic tape 103b of the information medium 100b, the information medium 100b is inserted from the insertion port of the drive device 1 toward the inside of the device. At this time, the main control unit 9 causes the loading mechanism 2 to load the information medium 100b in accordance with the detection signal Sd output from the sensor 8. Next, the reproduction start switch of the operation unit 7 is operated. Subsequently, the main control unit 9 performs winding of the magnetic tape 103b by performing the same control as the above-described control on the winding mechanism 3 and each motor 4 according to the operation signal So, and at the same time, the magnetic tape 103b. Move, send out and wind up.

  Subsequently, the main control unit 9 determines that the loaded information medium 100 is the information medium 100b based on the specific signal Si output from the sensor 8, and performs a second reproduction process on the head control unit 6. Is executed. In the second reproduction process, the head controller 6 causes each of the reproducing heads 54a to 54d to reproduce the signal Sr recorded on the recording surface 104 of the magnetic tape 103b. In this case, the head controller 6 reproduces the signal Sr recorded in the first belt-like region 105a of the two belt-like regions 105 of the magnetic tape 103b, and the reproducing head 54a disposed in the first annular region 61a. , 54c. Further, the head controller 6 causes the reproduction heads 54b and 54d disposed in the second annular area 61b to reproduce the signal Sr recorded in the second belt-like area 105b. That is, the head controller 6 is arranged in the annular region 61 corresponding to each of the different belt-like regions 105 to reproduce the signal Sr recorded in each belt-like region 105 in the second reproduction process. Each of the reproducing heads 54 performs the operation. To 54d reproduce the signal Sr while moving with the rotation of the rotary drum 52, as shown in FIGS.

  Specifically, for example, as shown in FIG. 16, while the rotating drum 52 is rotated 1/4 (90 °), the reproducing heads 54a and 54b move along the track T along with the rotation of the lower left in FIG. The signal Sr recorded in each band-like area 105 is reproduced by the reproducing heads 54a and 54b for one track T (a total of two tracks T). Next, while the rotating drum 52 further rotates 1/4, each reproducing head 54 does not come into contact with the recording surface 104, so that the signal Sr is not reproduced. Subsequently, as shown in FIG. 17, while the rotary drum 52 further rotates ¼, the reproducing heads 54 c and 54 d move along the track T along with the rotation, and are recorded in the respective band-like areas 105. The signal Sr is further reproduced by the reproducing heads 54c and 54d by one track T (a total of two tracks T). Next, while the rotating drum 52 further rotates 1/4, each reproducing head 54 does not come into contact with the recording surface 104, so that the signal Sr is not reproduced.

  As a result, the signal Sr recorded in each band-like area 105 is reproduced for two tracks (a total of four tracks T) while the rotary drum 52 makes one rotation. Therefore, in the second reproduction process, the signal Sr is reproduced at a speed twice that of the first reproduction process. Thereafter, by repeating the above operation, the signals Sr for a number of tracks T recorded in the band-like areas 105 are reproduced by the reproducing heads 54a to 54d. That is, in the second reproduction process, reproduction of the signal Sr recorded on the recording surface 104 of the magnetic tape 103 b is performed by all the reproduction heads 54 a to 54 d disposed on the rotary drum 52. In this case, in this drive device 1, the magnetic tape 103 b is wound around the rotary drum 52 with a short winding length that is the same as the winding length when the magnetic tape 103 a having a narrow tape width is wound. For this reason, as compared with the conventional drive device that requires a longer winding length as the tape width is wider, the positional deviation of the magnetic tape 103b due to the frictional resistance between the rotating drum 52 and the magnetic tape 103b is sufficiently increased. It can be kept low. Therefore, the signal Sr can be reproduced sufficiently accurately.

  As described above, according to the head device 5, the drive device 1, and the recording / reproducing method, the outer peripheral portion of the rotating drum 52 is divided into two in the thickness direction of the rotating drum 52, and is annular along the circumferential direction of the rotating drum 52. In addition, two recording heads are disposed in each annular region 61, and two reproducing heads 54 are disposed in each annular region 61, so that the annular region 61 is provided for the magnetic tape 103a having a narrow tape width. By using all the recording heads 53 and the reproducing heads 54 for the magnetic tape 103b having a wide tape width, using the recording head 53 and the reproducing heads 54 disposed in the first annular region 61a. The signal Sr can be recorded and reproduced using two types of magnetic tape 103 without changing the winding length of the magnetic tape 103 around the rotating drum 52. . Therefore, according to the head device 5 and the drive device 1, different guide rollers 221 are used according to the tape width, and the winding length of the magnetic tape 103 around the rotating drum 252 varies according to the tape width. As compared with the above, the structure of the winding mechanism 3 can be sufficiently simplified. Further, according to the head device 5 and the drive device 1, the winding length when using the magnetic tape 103b with a wide tape width is set to a short winding length that is the same as the winding length when using the magnetic tape 103a with a narrow tape width. Therefore, the positional deviation of the magnetic tape 103b caused by the frictional resistance with the rotary drum 52 is sufficiently reduced as compared with the conventional drive device that requires a longer winding length as the tape width is wider. Can do. Therefore, according to the head device 5, the drive device 1, and the recording / reproducing method, the signal Sr can be recorded and reproduced sufficiently accurately.

  Further, according to the head device 5, the drive device 1, and the recording / reproducing method, a plurality of recording heads 53 and By arranging a plurality of reproducing heads 54 at equal intervals, the recording speed was sufficiently increased by adjusting the moving speed of the magnetic tape 103 and the rotating speed of the rotary drum 52 so that the tracks T were evenly spaced and closely contacted. The signal Sr can be recorded in the state, and the signal Sr recorded in the state can be reliably reproduced.

  The present invention is not limited to the configuration described above. For example, the head control unit 6 makes the track T of the first strip region 105a and the track T of the second strip region 105b discontinuous on the magnetic tape 103b (see FIG. 15), instead of the second recording process described above. As shown in FIG. 18, it is also possible to employ a configuration in which a third recording process for recording the signal Sr is performed so that the tracks T of both belt-like regions 105 are continuous with each other. Hereinafter, as an example, an example in which the signal Sr corresponding to 12 tracks T described above is recorded on the magnetic tape 103b by the third recording process will be described with reference to FIGS. In order to facilitate the understanding of the invention, in each of these drawings and the following description, each divided signal Sr obtained by dividing the signal Sr in order from the head by the length of the track T is shown and shown as signals Sr1 to Sr12, respectively. Give an explanation. Further, in each of these drawings, the symbols of the recording heads 53a to 53d that record the signals Sr1 to Sr12 are shown together with the symbols of the signals Sr1 to Sr12.

  In the third recording process, the head controller 6 temporarily stores the signal Sr input from the external device in a buffer (not shown). Next, as shown in FIG. 19, the head controller 6 is a predetermined number of signals Sr (the number defined by the tape width of the magnetic tape 103b, the moving speed, the diameter and the inclination angle of the rotating drum 52, etc.). In this example, the signals Sr2, Sr4, Sr6 for three tracks T are sequentially output in this order to the recording heads 53b, 53d, 53b disposed in the second annular region 61b of the rotary drum 52. To record. In this case, in this example, the signal Sr for three tracks T is recorded by the recording heads 53b and 53d while the rotary drum 52 rotates 1.5 times, and the magnetic tape 103b is substantially equivalent to one track T during that time. It moves by the length necessary for recording the signal Sr (length D shown in FIG. 20).

  Subsequently, as shown in FIG. 20, the head controller 6 sends signals Sr1 and Sr8 to the recording head 53c and the second annular area 61b arranged in the first annular area 61a of the rotary drum 52. Output to the recording head 53d. In this case, since the magnetic tape 103 has moved by the length D at the recording start time of the signal Sr1, the position of the recording head 53c at the recording end time of the signal Sr1 coincides with the position at the recording start time of the signal Sr2. . As a result, as shown in the figure, the track T on which the signal Sr1 is recorded and the track T on which the signal Sr2 is recorded are continuous. Next, as shown in FIG. 21, the head controller 6 outputs and records signals Sr3 and Sr10 to the recording heads 53a and 53b, respectively. In this case, in the same manner as described above, the position of the recording head 53a at the recording end time of the signal Sr3 coincides with the position at the recording start time of the signal Sr4. As a result, as shown in FIG. T and the track T on which the signal Sr4 is recorded are continuous.

  Subsequently, the head controller 6 outputs and records signals Sr5 and Sr12 to the recording heads 53c and 53d, respectively, as shown in FIG. Also in this case, in the same manner as described above, as shown in the figure, the track T on which the signal Sr5 is recorded and the track T on which the signal Sr6 is recorded are continuous. Next, as shown in FIG. 23, the head controller 6 sequentially outputs and records signals Sr7, Sr9, Sr11 to the recording heads 53a, 53c, 53a in this order. Also in this case, in the same manner as described above, the tracks T on which the signals Sr7, Sr9, and Sr11 are recorded and the tracks T on which the signals Sr8, Sr10, and Sr12 are recorded are continuous as shown in FIG. Thereby, the recording of the signals Sr1 to Sr12 by the third recording process is completed.

  Here, in this configuration, when the head controller 6 executes the third recording process, the signal Sr is recorded so that the tracks T of the two belt-like regions 105 are continuous with each other. Therefore, the magnetic tape 103b is wound around the rotary drum 252 by a length (180 °) that is about ½ of the length along the outer peripheral surface of the rotary drum 252, and the upper end portion from the lower end side of the recording surface 104 is wound. The signal Sr recorded on the magnetic tape 103b by the third recording process can be reproduced by using a conventional drive device that records and reproduces the signal Sr so that the track T continues. That is, according to the drive device 1 in which the head controller 6 executes the third recording process, the compatibility of the magnetic tape 103b (information medium 100b) can be maintained.

  Further, the example in which two recording heads 53 and two reproducing heads 54 are provided in each annular region 61 of the rotary drum 52 in the head device 5 has been described above, but the number of recording heads 53 and reproducing heads 54 is one or three or more. It can be prescribed to any number of. Further, the number of the annular regions 61 is not limited to two, and can be defined as any number of three or more. In this case, the number of the belt-like regions 105 is defined to be the same as the number of the annular regions 61, and each belt-like region 105 and each of the annular regions 61 are associated with each other to correspond to any number of three or more belt-like regions 105. The reproduction of the signal Sr and the signal Sr recorded in each band-like area 105 can be performed by the recording head 53 and the reproduction head 54 provided in each annular area 61, respectively.

  Furthermore, a head device in which only one of the recording head 53 and the reproducing head 54 is disposed in each annular region 61 may be employed. Further, the present invention can be applied to a recording-only drive device provided with a head device in which only the recording head 53 is provided, or a reproduction-only drive device provided with a head device in which only the reproducing head 54 is provided. The present invention can also be applied. Further, the drive apparatus 1 using two types of information media 100a and 100b having different tape widths has been described as an example. However, the present invention may be applied to a drive apparatus using three or more types of information media 100 having different tape widths. it can.

1 is a block diagram showing a configuration of a drive device 1. FIG. It is a top view of information media 100a and 100b. It is sectional drawing of the information medium 100a. It is sectional drawing of the information medium 100b. FIG. 6 is a first explanatory diagram for explaining a method of winding the magnetic tape 103 around the head device 5. FIG. 6 is a second explanatory diagram for explaining a method of winding the magnetic tape 103 around the head device 5. 4 is an explanatory diagram for explaining a configuration of a head device 5. FIG. It is the 1st explanatory view for explaining the 1st record processing. It is the 2nd explanatory view for explaining the 1st recording processing. It is a top view of the magnetic tape 103a in the state in which the signal Sr was recorded. It is the 1st explanatory view for explaining the 1st reproduction processing. It is the 2nd explanatory view for explaining the 1st reproduction processing. It is the 1st explanatory view for explaining the 2nd recording processing. It is the 2nd explanatory view for explaining the 2nd recording processing. It is a top view of the magnetic tape 103b in the state in which the signal Sr was recorded. It is the 1st explanatory view for explaining the 2nd reproduction processing. It is the 2nd explanatory view for explaining the 2nd reproduction processing. It is a top view of the magnetic tape 103b in the state by which the signal Sr was recorded by the 3rd recording process. It is the 1st explanatory view for explaining recording processing of the 3rd recording processing. It is the 2nd explanatory view for explaining recording processing of the 3rd recording processing. It is the 3rd explanatory view for explaining recording processing of the 3rd recording processing. It is a 4th explanatory view for explaining recording processing of the 3rd recording processing. It is a 5th explanatory view for explaining recording processing of the 3rd recording processing. It is explanatory drawing for demonstrating the recording method of the signal with respect to the magnetic tape 103a by the conventional drive apparatus. It is explanatory drawing for demonstrating the recording method of the signal with respect to the magnetic tape 103b by the conventional drive apparatus. It is explanatory drawing for demonstrating the winding state of the magnetic tape 103 with respect to the head apparatus 5 by the conventional drive apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drive apparatus 3 Winding mechanism 5 Head apparatus 6 Head control part 52 Rotary drum 53a-53d Recording head 54a-54d Playback head 61a 1st cyclic | annular area | region 61b 2nd cyclic | annular area | region 103a, 103b Magnetic tape 104 Recording surface 105a 1st strip | belt-shaped area | region 105b Second belt-like area A Rotation center axis C1, C2 Circumference Sr signal

Claims (10)

A head device comprising a rotating drum and a recording head disposed on the outer periphery of the rotating drum, and performing signal recording on the recording surface of the magnetic tape by a helical scan method,
The rotating drum has a plurality of the recording heads in each annular region in which the outer peripheral portion is divided into a plurality in the thickness direction of the rotating drum and is annular along the circumferential direction of the rotating drum. Head devices that are arranged in natural numbers). The rotating drum is provided with a plurality of recording heads in each annular region,
2. The head device according to claim 1, wherein the recording heads are arranged at equal intervals along the same circumference around the rotation center axis of the rotary drum in each annular region. A head device comprising a rotating drum and a reproducing head disposed on the outer peripheral portion of the rotating drum, and performing reproduction of a signal recorded on the recording surface of the magnetic tape by a helical scan method,
The rotating drum includes a plurality of N reproducing heads in each annular region in which the outer peripheral portion is divided into a plurality of portions in the thickness direction of the rotating drum and is annular along the circumferential direction of the rotating drum. Head devices that are arranged in natural numbers). The rotating drum is provided with a plurality of reproducing heads in each annular region,
4. The head device according to claim 3, wherein the reproducing heads are arranged at equal intervals along the same circumference around the rotation center axis of the rotating drum in each annular region. 5. A rotating drum, and a recording head and a reproducing head arranged on the outer periphery of the rotating drum, and a helical scan for recording a signal on the recording surface of the magnetic tape and reproducing the signal recorded on the recording surface A head device that performs the method,
The rotating drum has a plurality of the recording heads in each annular region in which the outer peripheral portion is divided into a plurality in the thickness direction of the rotating drum and is annular along the circumferential direction of the rotating drum. A natural number), and N reproducing heads are arranged in each annular region. The rotating drum is provided with a plurality of recording heads and reproducing heads in each of the annular regions,
6. The head device according to claim 5, wherein the recording heads and the reproducing heads are arranged at equal intervals along the same circumference around the rotation center axis of the rotary drum in each annular region. The head device according to claim 1, a winding mechanism that winds the magnetic tape around a rotating drum of the head device, and the recording of the signal to a plurality of types of the magnetic tape having different tape widths. A drive device including a head control unit for executing a recording process,
The winding mechanism winds the rotating drum with the same winding length for each type of magnetic tape at the time of the recording process,
The head control unit has a first recording process for causing the recording head disposed in one of the annular regions to record the signal on the recording surface, and the recording surface of the magnetic tape. The recording of the signal for each strip-shaped region that is divided into a plurality of strips in the width direction and becomes strip-shaped along the length direction of the magnetic tape is disposed in each annular region that is associated with each different strip-shaped region. And a second recording process to be performed by each of the recording heads as the recording process, according to the type of the magnetic tape. 5. The head device according to claim 3, a winding mechanism for winding the magnetic tape around a rotating drum of the head device, and reproduction of the signal recorded on the plurality of types of the magnetic tape having different tape widths. A drive device including a head control unit that executes a reproduction process to be performed by the device,
The winding mechanism winds around the rotating drum with the same winding length with respect to each type of magnetic tape during the execution of the reproduction process,
The head control unit includes a first reproduction process for causing the reproduction head disposed in one of the annular regions to reproduce the signal recorded on the recording surface, and the recording surface. The reproduction of the signal recorded in each band-shaped area which is divided into a plurality of bands in the width direction of the magnetic tape and is band-shaped along the length direction of the magnetic tape is associated with each band-shaped area different from each other. And a second reproducing process to be performed by each of the reproducing heads disposed in each of the annular regions, and performing the reproducing process by switching according to the type of the magnetic tape. The head device according to claim 5, a winding mechanism for winding the magnetic tape around the rotating drum of the head device, and recording of the signal on the plurality of types of magnetic tapes having different tape widths to the head device. And a head control unit that executes a recording process and a reproducing process for causing the head apparatus to reproduce the signal recorded on each magnetic tape,
The winding mechanism winds the rotating drum with the same winding length for each type of magnetic tape during the recording process and the reproduction process,
The head control unit has a first recording process for causing the recording head disposed in one of the annular regions to record the signal on the recording surface, and the recording surface of the magnetic tape. The recording of the signal for each strip-shaped region that is divided into a plurality of strips in the width direction and becomes strip-shaped along the length direction of the magnetic tape is disposed in each annular region that is associated with each different strip-shaped region. And switching the second recording process to be performed by each of the recording heads according to the type of the magnetic tape as the recording process, and reproducing the signal recorded on the recording surface. The first reproduction processing to be performed by the reproduction head arranged in one of the two, and the reproduction of the signals recorded in the respective band-like areas, respectively, are different from each other. Drive apparatus for performing switch according the respectively associated with the second reproduction processing to be performed to each of the reproducing head is arranged on each annular area of the type of the magnetic tape as the regeneration process. The outer peripheral portion of the rotating drum is divided into a plurality of portions in the thickness direction of the rotating drum, and N recording heads (N is a natural number of 1 or more) are arranged in each annular region that is annular along the circumferential direction of the rotating drum. In addition, a magnetic tape is wound around the rotary drum in a head device in which N reproducing heads are arranged in each annular region, and signal recording is performed on recording surfaces of a plurality of types of magnetic tapes having different tape widths. And a recording / reproducing method for performing a recording process and a reproducing process for reproducing the signal recorded on the recording surface by a helical scan method,
When the recording process is performed and when the reproduction process is performed, each type of magnetic tape is wound around the rotating drum with the same winding length.
A first recording process for causing the recording head disposed in one of the annular regions to record the signal on the recording surface; and dividing the recording surface into a plurality of portions in the width direction of the magnetic tape. Then, the recording of the signal to each band-shaped area that is band-shaped along the length direction of the magnetic tape is performed on the recording head disposed in each annular area respectively associated with each different band-shaped area. Each of the second recording processes to be performed is switched and executed as the recording process according to the type of the magnetic tape,
A first reproduction process for causing the reproduction head arranged in one of the annular areas to reproduce the signal recorded on the recording surface, and a recording on each band-like area. A second reproduction process for causing the reproduction heads disposed in the respective annular areas respectively associated with the respective band-like areas different from each other to perform reproduction of the signal as the reproduction process is performed on the type of the magnetic tape. A recording / playback method that is switched accordingly.

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