JPH11250557A - Device and method for recording/reproducing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording/reproducing device capable of preventing a reduction in performance or function by surely receiving a control signal transmitted after the loading of a recording medium. SOLUTION: This recording/reproducing device is provided with a disk determination section 31 for detecting the existence of a loaded magnetic disk, and a control unit 9 for outputting a loading signal indicating the loading of the magnetic disk based on the detecting result of the disk determination section 31. The control unit 9 outputs a disk insertion signal to an external computer, indicating the loading of the magnetic disk after a certain delay based on the signal outputted from the disk determination section 31 when a lower disk is loaded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a recording / reproducing apparatus and method for recording / reproducing an information signal on / from a recording medium.

[0002]

2. Description of the Related Art Hitherto, recording / reproducing of information signals on a recording medium such as a magneto-optical disc has been performed by a recording / reproducing apparatus having a magnetic head. When recording / reproducing an information signal, the magnetic head is moved to a desired data track.

Specifically, a plurality of data tracks are formed on the recording medium, and the recording / reproducing apparatus moves the magnetic head to a desired data track on such a recording medium. Thus, recording / reproduction of the information signal is performed. Some recording media store the position information of each data track. For such a recording medium, the recording / reproducing apparatus performs a process to a predetermined data track based on the position information. The magnetic head is moving. It is conventionally known to use a stepping motor as a means for moving a magnetic head.

In many cases, the recording / reproducing apparatus is controlled by an external computer. In this case, the recording / reproducing apparatus outputs a signal (disc insertion signal) indicating whether or not a recording medium is mounted to the external computer. doing. By receiving the disc insertion signal, the external computer knows that the recording medium is mounted on the recording / reproducing device, and then starts outputting a command to the recording / reproducing device.

[0005]

Some recording / reproducing apparatuses require a preparation operation after a recording medium is mounted. For example, when a recording medium in which the position information of a data track is not stored is mounted, a predetermined process for obtaining position information corresponding to the data track may be performed.

However, as described above, the conventional recording / reproducing apparatus outputs the disc insertion signal to an external computer as soon as the recording medium is mounted. Therefore,
The external computer outputs a command signal for recording / reproduction to the recording / reproducing apparatus even when the recording / reproducing apparatus is performing the preparation operation. In this case, the recording / reproducing apparatus cannot receive a control signal from an external computer, and causes a decrease in performance and functions.

Conventionally, as a recording medium such as a flexible disk, a recording medium having a recording capacity of about 1.44 megabytes at the time of formatting (hereinafter referred to as a lower-order recording medium) has been widely used. On the other hand, in recent years, the recording density has been made higher than that of the above-described lower recording medium by narrowing the track, etc.
A medium having a size of up to 650 megabytes (hereinafter referred to as a high-order recording medium) has been proposed. In this upper recording medium, the position information of the data track is stored in the data track. Note that the lower-order recording medium described above includes:
Data track position information is not stored.

In order to cope with the coexistence of a lower recording medium and an upper recording medium, a recording / reproducing apparatus for recording / reproducing information signals on both recording media has been proposed. For example, this recording / reproducing apparatus is configured to continuously move a magnetic head in a radial direction of a recording medium using a voice coil motor which is a linear motor. Here, when an attempt is made to move to a desired data track, there is no problem because the position information of the data track is stored for the upper recording medium, but is not stored for the lower recording medium. It is necessary to start operations such as recording / reproduction after creating the position information. Therefore, when a lower recording medium is mounted, it is necessary to provide a preparatory operation to create position information of the mounted lower recording medium. For this reason, during the preparation operation, the recording / reproducing apparatus cannot receive the control signal from the external computer even if the control signal arrives, and thus the performance and the function are reduced.

Therefore, the present invention has been made in view of the above-mentioned circumstances, and it is possible to reliably receive a control signal transmitted after a recording medium is mounted, and to prevent a decrease in performance or function. A recording / reproducing apparatus and method are provided.

[0010]

In order to solve the above-mentioned problems, a recording / reproducing apparatus according to the present invention is based on mounting detection means for detecting whether or not a recording medium has been mounted, and based on a detection result of the mounting detecting means. Control means for outputting a mounting signal indicating whether or not a recording medium has been mounted. After the recording medium is mounted, the recording / reproducing apparatus performs a predetermined process after the recording medium is mounted, and then outputs a mounting signal indicating that the recording medium is mounted.

That is, the recording / reproducing apparatus outputs a mounting signal indicating whether or not the recording medium is mounted by the control means based on the detection result of whether or not the recording medium is mounted detected by the mounting detecting means. Then, the control means of the recording / reproducing apparatus includes:
After the recording medium is mounted, a predetermined process is performed, and then a mounting signal indicating that the recording medium is mounted is output.

Therefore, the mounting signal from the recording / reproducing apparatus to the effect that the recording medium is mounted is always output after the recording / reproducing apparatus performs a predetermined process after the recording medium is mounted. .

In order to solve the above-mentioned problems, a recording / reproducing method according to the present invention includes a mounting detecting step of detecting whether or not a recording medium is mounted, and a recording medium reproducing method based on a detection result in the mounting detecting step. A mounting signal output step of outputting a mounting signal indicating the presence or absence of mounting. And record /
In the mounting signal output step of the reproducing method, after the recording medium is mounted, predetermined processing is performed, and then a mounting signal indicating that the recording medium is mounted is output.

Therefore, the mounting signal from the recording / reproducing apparatus to which the recording / reproducing method is applied, to the effect that the recording medium is mounted, always performs the predetermined processing when the recording / reproducing apparatus is mounted. Is output after that.

[0015]

Embodiments of a recording / reproducing apparatus according to the present invention will be described below with reference to the drawings.
In this embodiment, a flexible disk (hereinafter referred to as a lower disk) having a predetermined track pitch and a recording capacity at the time of formatting of about 1.44 megabytes, and a track narrower than the predetermined track pitch of the lower disk The recording / reproduction of information signals is performed on both a flexible disk (hereinafter, referred to as an upper disk) having a higher recording density than that of the lower disk and a recording capacity of 150 to 650 megabytes at the time of formatting. It is a recording / reproducing device that can be performed. Then, this recording / reproducing apparatus, for the lower disk described above,
It is driven to rotate at a rotation speed of about 300 to 600 rpm, and about 1200 to 36
The information signal is recorded / reproduced by being rotationally driven at a rotational speed of about 00 rpm. In the following description, when both the lower disk and the upper disk are collectively referred to, they are simply referred to as magnetic disks.

As shown in FIG. 1, the recording / reproducing apparatus includes a disk discriminating unit 31 as a mounting detecting means for detecting whether or not a magnetic disk is mounted, and a magnetic disk based on the detection result of the disk discriminating unit 31. And a control unit 9 for outputting a mounting signal indicating the presence or absence of mounting. The recording / reproducing apparatus 1 includes an external computer interface 100 serving as an interface with an external computer (not shown), and an eject button operation detecting unit 32 for detecting an operation state of an eject button.

Here, the configuration of each section of the recording / reproducing apparatus 1 will be described.

The disk discriminating section 31 includes a disk insertion detecting section 31a for detecting that a magnetic disk is mounted on the recording / reproducing apparatus 1, and an upper disk detecting section for detecting that the mounted magnetic disk is an upper disk. Part 31
b and a write-protection detector 31c for detecting whether or not the mounted magnetic disk is write-protected.

The disk insertion detecting section 31a is a part for detecting that a magnetic disk is mounted on the recording / reproducing apparatus 1. For example, the disc insertion detection unit 31a
Is constituted by an optical sensor. When the magnetic disk is inserted, the disk insertion detecting section 31a outputs a signal to the control section 9 that the magnetic disk is mounted. For example, the signal output from the disk insertion detection unit 31a is a digital signal, and is output as logic 0 or 1.

The upper disk detecting section 31b is a section for detecting that the magnetic disk mounted on the recording / reproducing apparatus 1 is an upper disk. When the upper disk is mounted, the upper disk detector 31b notifies the controller 9 that the upper disk has been mounted, for example, by a signal indicating that the upper disk has been mounted.

The write-inhibition detecting section 31c is a part which is mounted on the recording / reproducing apparatus 1 and detects whether the magnetic disk is prohibited from writing information signals. For example, the magnetic disk is housed in a cassette, and the write-inhibition detection unit 31c is configured to detect an operation unit provided in the cassette and indicating whether write-inhibition is performed.

The disk discriminator 31 constructed as described above
When a magnetic disk is mounted on the recording / reproducing device 1, the corresponding detection result is notified to the control unit 9. For example, when a lower disk is inserted into the recording / reproducing apparatus 1, a report indicating that a magnetic disk has been inserted from the disk insertion detecting unit 31a, and an upper disk detecting unit 3
The control unit 9 detects that the lower disk has been mounted on the recording / reproducing apparatus 1 based on the report that the mounted magnetic disk is not the upper disk from 1b.

The eject button operation detecting section 32 includes:
This is a part for detecting whether or not an eject operation has been performed. When the eject button is operated, the eject button operation detecting unit 32 reports the fact to the control unit 9.

The control section 9 controls each section of the recording / reproducing apparatus 1. The control unit 9 reads signals output from the disc determination unit 31 and the eject button operation detection unit 32 as described above, and controls each unit.

For example, when the lower disk is mounted, the control unit 9 determines that the magnetic disk has been mounted after a certain delay based on the signal output from the disk determination unit 31. The insertion signal is output to the external computer interface. That is, the mounting signal indicating that the magnetic disk is mounted from the control unit 9 is always output after the recording / reproducing apparatus 1 performs a predetermined process after the magnetic disk is mounted.

The disk insertion signal indicating that the magnetic disk has been mounted and output from the control unit 9 with a certain delay is attached to the external computer interface 10.
0 to an external computer. Upon receiving the report of the disk insertion signal, the external computer starts outputting control signals and the like to the recording / reproducing apparatus 1. Record /
The reproducing apparatus 1 moves a magnetic head to a desired data track on a magnetic disk in response to a track feed request signal sent from an external computer.

By the way, in the recording / reproducing apparatus 1, there is a case where a predetermined process is required immediately after the magnetic disk is mounted. That is, for example, the recording / reproducing apparatus 1 may make predetermined preparations before recording / reproducing an information signal with respect to a magnetic disk. For example, if the above-mentioned track feed request signal arrives from an external computer during this preparation period, the recording / reproducing apparatus 1 cannot appropriately perform an operation corresponding to the track feed request signal. There is also.

However, as described above, the recording / reproducing apparatus 1 according to the present embodiment transmits a disk insertion signal indicating that the magnetic disk has been mounted after performing the predetermined processing, that is, the predetermined preparation, to the external computer. Is output to Therefore, as described above, even if the external computer outputs a control signal or the like immediately after receiving the report of the disc insertion signal, the recording / reproducing apparatus 1 can appropriately perform an operation corresponding to the control signal. . Therefore, the recording / reproducing apparatus 1 can reliably receive a control signal or the like transmitted from the external computer after the magnetic disk is mounted, and can prevent performance and function from being degraded.

Next, the above-mentioned recording / reproducing apparatus 1 will be described with further specific examples. Recording / reproducing device 1
Is a magnetic head for recording / reproducing information signals on / from a magnetic disk 200 on which a plurality of data tracks are formed concentrically so that the data tracks are substantially parallel as shown in FIGS. 10, a magnetic head drive unit 6 for moving the magnetic head 10 in a direction perpendicular to a plurality of data tracks of the magnetic disk 200, that is, a disk radial direction, and a control unit 9 having the above-described functions.

As shown in FIG. 2, the recording / reproducing apparatus 1 includes a disk support 3 for rotatably supporting a magnetic disk 200, a disk drive 4 for driving the disk support 3, and a magnetic disk. A magnetic head unit 5 for positioning the magnetic head 10 on a predetermined data track 200, a tracking control unit 7 for controlling the tracking of the magnetic head unit 5 with respect to the magnetic disk 200, and recording on the magnetic disk 200 by the magnetic head unit 5. A recording / reproducing unit 8 for performing / reproducing, a discriminating unit 2 for controlling the disk support unit 3 according to the type of the magnetic disk 200 mounted on the disk support unit 3, and the external computer interface 100. I have.

The disk support 3 is composed of, for example, a spindle motor or the like, and the magnetic disk 2 is detachably mounted.
00 is rotatably supported. The disk support unit 3 drives the magnetic disk 200 to rotate at different rotational speeds in accordance with a drive signal from the disk drive unit 4.

The disk drive unit 4 outputs to the disk support unit 3 a drive signal for driving the magnetic disk 200 mounted on the disk support unit 3 to rotate. Here, the disk support unit 3 is connected to a discrimination unit 2 that outputs a rotation control signal according to the magnetic disk 200 mounted on the disk support unit 3, and responds to the rotation control signal from the discrimination unit 2. The rotation is controlled. That is, the discriminating unit 2 discriminates the magnetic disk 200 mounted on the disk support unit 3 from the control signal output from the control unit 9, and sets the disk support unit 3 according to the rotation control signal corresponding to the magnetic disk 200. The rotation speed of the support 3 is controlled.

More specifically, when the discrimination unit 2 determines that the magnetic disk 200 mounted on the disk support unit 3 is a lower disk, it generates a rotation control signal so as to rotate at the rotation speed for the lower disk. When the discrimination unit 2 determines that the magnetic disk 200 mounted on the disk support unit 3 is the upper disk, it generates a rotation control signal so that the magnetic disk 200 is driven to rotate at the rotation speed for the upper disk. That is, when the upper disk is mounted on the disk support unit 3, the determination unit 2 drives the upper disk to rotate at a higher rotation speed than the lower disk.

As shown in FIG. 3, the magnetic head section 5 includes moving mechanisms 16A and 16B constituting a magnetic head driving section 6 for driving the magnetic head 10, and the moving mechanisms 16A and 16B.
Carriage 1 driven in the disk radial direction by the
2, a gauge holder 13 mounted on the head carriage 12, and a track gauge 14 mounted on the head carriage 12 via the gauge holder 13.
And an optical encoder 15 fixedly attached to a fixing mechanism (not shown), and an arm unit 1 composed of arms 11A and 11B whose base ends are supported by the head carriage 12.
1 and heads 10A and 10B attached to the free ends of the arms 11A and 11B of the arm unit 11 and recording / reproducing information signals to / from the magnetic disk 200, respectively.

Although not shown, the heads 10A and 10B have a lower gap for recording / reproducing information signals on the lower disc and an upper gap for recording / reproducing information signals on the upper disc. . Magnetic head 10
When recording on the magnetic disk 200,
The recording signal from the reproducing unit 8 is input, and the information signal is recorded on the lower disk or the upper disk. The magnetic head 10 outputs a reproduction signal based on the information signal to the recording / reproduction unit 8 to the recording / reproduction unit 8 when reproducing the information signal recorded on the magnetic disk 200.

The arms 11A and 11B of the arm section 11
Are formed in a substantially thin plate shape, and are attached to the head carriage 12 so as to be movable in a direction A facing each other, that is, in a direction in which the magnetic disk 200 approaches and separates from the signal recording surface. And arm 1
1A and 11B support the heads 10A and 10B by positioning them on the magnetic disk 200.
10B is attached to the head carriage 12 so as to apply a predetermined pressing load to the magnetic disk 200. Specifically, when recording / reproducing on the lower disk by the magnetic heads 10A and 10B, a load is applied so as to contact the lower disk and record / reproduce the information signal, and when recording / reproducing on the upper disk, A load is applied so as to fly from the upper disk and record / reproduce information signals.

The moving mechanism 16A is constituted by a voice coil motor which is a so-called linear motor.
8, yokes 19 and 20. This moving mechanism 16A,
16B constitutes a magnetic head driving unit 6 for driving the magnetic head 10. Specifically, the moving mechanism 16A has yokes 19 and 20 fixed to, for example, a chassis of a disk drive device.
8 is attached. And the moving mechanism 16A
The voice coil motor coil 17 is moved so that the voice coil motor coil 17 is movable with respect to the yoke 20.
Is inserted through the yoke 20. A magnet 18 is provided on the inner surface of the yoke 19 and facing the yoke 20.
Is attached. When a voltage is applied to the voice coil motor coil 17 of the moving mechanism 16 </ b> A configured as described above, the voice coil motor coil 17 is driven with respect to the yoke 20. The voice coil motor coil 17 of the moving mechanism 16A is attached to the side surface of the head carriage 12. This moving mechanism 16A
The moving mechanism 16B that faces the head carriage 12 with respect to the moving mechanism 16A is configured similarly to the moving mechanism 16A.

When a driving voltage is applied to the voice coil motor coil 20, the moving mechanisms 16A and 16B drive the voice coil motor coil 20 to drive the head carriage 12 in the radial direction B of the magnetic disk 200. . That is, the arms 11A and 11B are moved in the radial direction B by the moving mechanisms 16A and 16B,
0 is moved in the radial direction B of the magnetic disk 200.

Specifically, the moving mechanisms 16A and 16B
The head drive signal and the tracking signal are input from the control unit 9 and the tracking control unit 7 and driven. The moving mechanisms 16A and 16B drive the magnetic head 10 to move in the radial direction B of the magnetic disk 200 according to the head drive signal. The moving mechanism 16 drives the magnetic head 10 in the radial direction B of the magnetic disk 200 in accordance with the tracking signal. In addition,
The movement of the data tracks of the magnetic head 10 by the moving mechanisms 16A and 16B is executed in response to a track sending request signal sent from an external computer.

The track gauge 14 is formed in a substantially thin plate shape, and is mounted on the head carriage 12 via the gauge holder 13 as described above. Then, the track gauge 14 is used for the magnetic disk 20.
0 so as to be parallel to the radial direction B of the head carriage 1.
2 are arranged.

3 and FIG.
As shown in FIG. 4A and FIG. 4B, the plurality of first openings 21 arranged in the radial direction B and the magnetic disk 10
A second opening 22 is provided on the side.

As shown in FIG. 5, each of the plurality of first openings 21 has substantially the same shape, and has a substantially rectangular opening. Each first opening 21 is formed in the track gauge 14 so as to have a pitch equal to the track pitch of the lower disk. Between each first opening 21, as described later, the light source 2
The light-shielding portion 21a shields light from the light source 3. And
In the track gauge, the area where the first opening 21 is formed in the radial direction B is set to be slightly larger than the width of the data track area formed on the magnetic disk 200.

Further, the second opening 22 is provided adjacent to the first opening 21 arranged and positioned at the edge of the first opening 21 arranged. I have. More specifically, the second opening 22 is moved to the outermost data track in the data track area of the magnetic disk 200 by the movement of the head carriage 12.
The track gauge 14 is provided so that the second opening 22 is located in the optical encoder 15 when 0 is arranged. That is, the second opening 22 is provided to obtain information for knowing that the magnetic head 10 has been positioned on the outermost data track.

Since the track gauge 14 is mounted on the head carriage 12, the track gauge 14 moves in the radial direction B together with the head carriage 12 in accordance with a head drive signal and a tracking signal from the control section 9 and the tracking control section 7.

As shown in FIG. 6, the optical encoder 15 is composed of a light source 23 and an optical sensor 24 opposed to both side surfaces of the track gauge 14 so as to sandwich the track gauge 14. The optical encoder 15 is fixed by a fixing mechanism (not shown), that is, the optical encoder 15 is positioned relative to the movement of the track gauge 14.

The light source 23 is, for example, a light emitting diode (LED).
a. The optical sensor 24 is, for example, a phototransistor, and is disposed on the inner surface 15b facing the inner surface 15a. By causing the light source 23 provided in the optical encoder 15 to emit light in this manner, the first opening 21 or the second opening provided in the track gauge 14 facing the light source 23 in the optical sensor 24. Light reception via the unit 22 is performed.

This optical sensor 24 is specifically shown in FIG.
As shown in FIG. 7, the first light source 23 that is located at a portion where light from the light source 23 that has passed through the first opening 21 is incident.
And the second opening 22
And a second phototransistor 24b located at a portion where the light from the light source 23 that has passed therethrough is incident.

Such an optical encoder 15 is, for example,
When the head carriage 12 moves in the radial direction B, the light source 2
The light from 3 generates a sinusoidal optical signal via the track gauge 14.

Here, when the head carriage 12 moves, that is, when the track gauge 14 is moved to the optical encoder 1
Light reception from the light source 23 in the optical sensor 24 in the case where the optical sensor 24 is moved with respect to 5 will be described.

The light sensor 24 receives light from the light source 23 by driving the head carriage 12. That is, the moving mechanisms 16A and 16B are driven according to the head drive signal from the control unit 9, and the head carriage 12 is also driven. When the magnetic head 10 and the track gauge 14 are moved in the radial direction B of the magnetic disk 200, the optical encoder 15
Then, the light from the light source 23 is received by the optical sensor 24 while the track gauge 14 is moving.

In this movement, the track gauge 14
In FIG. 5, the first openings 21 and the shields 21 a shown in FIG. 5 pass between the light source 23 and the optical sensor 24 alternately. As a result, in the first phototransistor 24a,
The intensity of light from the light source 23 due to the passage of the first opening 21 and the shielding part 21a is received, and as shown in FIG.
A substantially sinusoidal first optical signal _Sa is generated.

In the second phototransistor 24b, when the magnetic head 10 is driven in the outer peripheral direction of the disk, the second opening 22 of the track gauge 14 passes through the second phototransistor 24b, as shown in FIG. as such, the second optical signal S _b that varies substantially step wave shape is generated. Here, the second optical signal S _b is the rise of the step wave shape, the magnetic head 10 will indicate that it has been positioned on the data track of the outermost periphery of the data track area.

[0053] Thus, the second optical signal S _b is identified data tracks are located at the outermost periphery of the data track region, and further a result, formed by the first optical signal S _a to the data track region The position of each data track can be specified.

[0054] Here, a so-called absolute position detection when the second optical signal S _b mentioned above has risen a step wave shape is performed by the absolute position detection function described above by the control unit 9.

Based on each optical signal thus obtained,
Position information corresponding to each data track of the lower disk is generated. Specifically, the first optical signal S _a, the top and bottom values shown in FIG. 9 for each cycle of the sine wave is stored in the storage unit 25. For example, the storage unit 25 is provided with two storage areas for storing the top value and the bottom value, and the top value and the bottom value correspond to each data track in each storage area. Recorded in order. And the top and bottom values are
The position of the magnetic head 10 in the data track area,
And data for knowing the position of the magnetic head 10 between data tracks at the time of track feed.

[0056] In the following, in the present embodiment, the zero-cross point of the first optical signal S _a and the data track center, and the track pitch for one cycle from the zero-cross point. Therefore, one top value and one bottom value are associated with each data track.

[0057] Further, the position in the data track area of the magnetic head 10, specifically, by counting the top value or bottom value of the first optical signal S _a from the optical encoder 15, the current magnetic head 10 Has detected the data track number where is located. Note that a procedure for obtaining position information from the top value and the bottom value stored in the storage unit 25 during the track feeding process will be described later.

The storage area of the storage unit 25 is described in detail below.
As shown in FIG. 10, a memory unit 25a for storing a top value stores a top value and a bottom value, respectively.
And a memory unit 25b for storing the bottom value. The memory unit 25a for the top value and the memory unit 25b for the bottom value are configured to store 94 top values and bottom values, respectively. further,
In the present embodiment, the data track area of the lower disk is composed of 80 data tracks. Therefore, a storage area sufficient to store the top value and the bottom value corresponding to each data track is secured in the storage unit 25.

The operation of obtaining the optical signal is performed only when the lower disk is mounted. This is because the lower disk itself does not have so-called position information indicating the position of the data track.

Then, the magnetic head 10 reaches a predetermined data track according to the position information, and the recording / reproducing apparatus 1 performs tracking of the magnetic head 10. Tracking is performed by the tracking control unit 7.

As shown in FIG. 2, the tracking control unit 7 controls the tracking when the upper disk is mounted on the disk support unit 3, and the lower disk is mounted on the disk support unit 3 when the lower disk is mounted on the disk support unit 3. And a lower tracking control circuit 7b for controlling the tracking when the tracking error occurs.

The upper tracking control circuit 7a is a circuit for performing tracking based on a position information signal such as a tracking signal recorded in advance on a data track of an upper disk. For example, a tracking signal is recorded on a data track of the upper disk, and the upper tracking control circuit 7a performs tracking in accordance with the tracking signal.

The lower tracking control circuit 7b
As shown in FIG. 11, are performed based on the first optical signal S _a and the set reference line O so as to intersect to the above is obtained by moving the magnetic head 10. Here, the first
, A _n-1 , a _n ,... Correspond to the center of each data track of the lower disk.

That is, the lower tracking control circuit 7b
Controls the magnetic head 10 so that it converges on the desired data track when the magnetic head 10 is moved, that is, when the magnetic head 10 reaches the zero cross point corresponding to the predetermined data track. Tracking (hereinafter, this tracking operation is referred to as track following).

The control unit 9 includes the disk drive unit 4 described above,
It has a function of outputting control signals to the recording / reproducing unit 8, the magnetic head driving unit 6, and the tracking control unit 7 to control each component. The storage unit 25 described above is connected to the control unit 9.

For example, when the magnetic disk 200 is mounted, the control unit 9 outputs each control signal to the disk drive unit 4, the magnetic head drive unit 6, and the tracking control unit 7. Further, the determination unit 2 outputs a rotation control signal applied to the magnetic disk 200 to the disk support unit 3 based on a control signal output from the control unit 9.

That is, when the magnetic disk 200 is mounted, the disk drive unit 4 drives the disk support unit 3 to rotate based on the control signal. Then, the tracking control unit 7 sets a state where a tracking signal can be generated by either the upper tracking control circuit 7a or the lower tracking control circuit 7b based on the control signal. The recording / reproducing unit 8 performs the recording / reproducing process by changing the data transfer rate or the like according to the upper disk and the lower disk based on the control signal from the control unit 9.

An external computer interface 100 is connected to the control unit 9. The external computer interface 100 is an interface with an external computer (not shown), and transmits control signals and the like transmitted from the external computer to the control unit 9. For example, at the time of recording / reproduction, a track feed request signal sent from an external computer is transmitted to the control unit 9. As described above, the recording / reproducing apparatus 1
Each section and each circuit are configured. The operation of the recording / reproducing apparatus 1 when a lower disk is mounted on the recording / reproducing apparatus 1 configured as described above will be described below.

When the lower disk is mounted on the disk support 3, the recording / reproducing apparatus 1 moves the magnetic disk 10 once in the inner circumferential direction of the lower disk, and then moves the magnetic head 10 in the outer circumferential direction of the lower disk. The head carriage 12 is driven so as to move to. At this time, the drive of the magnetic head 10 is performed by the recording / reproducing apparatus 1 using a predetermined drive signal.

When the head carriage 12 is driven to move the magnetic head 10 in the outer peripheral direction of the lower disk, as described above, the first carriage as shown in FIG.
Retraction of the optical signal S _a takes place. Then, the recording / reproducing device 1 stores the above-described top value and bottom value in the received first optical signal Sa in _a predetermined storage area of the storage unit 25. Here, each top value and each bottom value are stored in the storage area in association with each data track.

Then, the recording / reproducing apparatus 1 waits until a track feed request signal is sent from an external computer. The recording / reproducing apparatus 1 detects that the track feed request signal has arrived from the external computer via the external computer interface 100 by the control unit 9, and the control unit 9 outputs a control signal corresponding to the track feed request signal. Output to the magnetic head drive unit 6.

Here, for example, when the magnetic head 10 is sent to an adjacent data track when a one-track feed request is made, more specifically, when the magnetic head 10 is sent to the magnetic disk in the outer circumferential direction. explain.

[0073] The control unit 9, as shown in FIG. 12, broadly includes a movement start control in the magnetic head 10 moves at the start control section (position X ₀ to X ₁ section indicated in FIG. 12),
Control section after the start of movement (positions X _{1 to} X ₂ shown in FIG. 12)
In this case, different control is performed between the magnetic head 10 and the magnetic head 10 in the adjacent data track.

First, the control unit 9 outputs the head drive signal of the maximum driving force unconditionally to the magnetic head drive unit 6 in the direction according to the track feed request signal arriving via the external computer interface 100. As
The magnetic head driving unit 6 is controlled. That is, FIG.
As shown in, the head drive signal S _H to be a kick pulse for applying a maximum driving force for starting moving the magnetic head 10 is outputted.

[0075] Then, the control unit 9, to the magnetic head 10 reaches the predetermined position X _1, and controls the magnetic head driver 6 to hold the head driving signal S _H. The predetermined distance that holds the head drive signal S _H for applying the maximum driving force is determined as a necessary and sufficient value to reach the data tracks adjacent. That is, the control unit 9 controls the speed of the magnetic head 10 so that the magnetic head 10 performs speed control by a predetermined driving force between a data track of a transmission source and a data track of a transmission destination by a predetermined driving force in a post-movement start control section described later. The driving of the magnetic head 10 is started unconditionally without performing the above operation. Thereby, the position and the initial moving speed of the magnetic head 10 reach the respective predetermined values.

Here, the + value of the head drive signal S _H moves the magnetic head 10 toward the outer periphery of the disk (forward drive).
The negative value is a signal for applying a driving force for moving the magnetic head 10 in the disk inner circumferential direction (reverse driving). Therefore, as in this example, when the track circumferentially perform track feed, change to + value of the head driving signal S _H represents the acceleration of the magnetic head 10, the head drive signal S _H
A change in the-direction indicates that the magnetic head 10 is decelerated.

The movement of the magnetic head 10 also
From the optical encoder 15, (change in position X ₀ and subsequent head drive signal S _H) the first optical signal S _a1 indicating that the magnetic head 10 is driven is output. Then, in the post-movement control section after the movement start control section, the control section 9 controls the moving speed of the magnetic head 10 based on the first optical signal _Sa1 output from the optical encoder 15. . That is, in the control section after the start of movement, the control unit 9
The kick pulse for applying the maximum driving force described above falls, and subsequently, the servo of the moving speed of the magnetic head 10 is performed based on the first optical signal _Sa1 . And the control part 9
In the section after the start of the movement control, the speed of the magnetic head 10 is controlled while monitoring the position of the magnetic head 10 at regular time intervals.

For example, the control unit 9 monitors the position of the magnetic head 10 at a constant value of 0.24 msec and controls the speed.

More specifically, the driving of the magnetic head 10 in the control section after the start of the movement is performed based on a comparison between a preset speed profile and the actual moving speed of the magnetic head 10. The speed is controlled.

For example, as shown in FIG. 13, the speed profile is constituted by a so-called expected speed table including a current position and an expected speed corresponding to the current position. Here, the current position is the current position of the magnetic head 10 between the source data track and the destination data track. The expected speed is a so-called ideal speed at the current position. If the magnetic head 10 has the expected speed at the current position corresponding to the expected speed, the arrival of the magnetic head 10 is scheduled. This indicates that the speed is sufficient and sufficient to reach the adjacent data track. For example, the speed profile is stored in the storage unit 25. The kick pulse falls at a position "8" of positions "0" to "39" when the distance between the data tracks is divided into 40 as described later. The servo of the moving speed of the magnetic head 10 is performed based on the optical signal _Sa1 .

The controller 9 controls the moving speed of the magnetic head 10 with reference to the speed profile so that the magnetic head 10 at the current position is at the expected speed. ing. That is, the control unit 9
Selects the ideal moving speed of the magnetic head 10 based on the current position with reference to the speed profile, and controls the movement of the magnetic head 10 so as to reach the selected moving speed.

More specifically, the control unit 9 obtains the current position of the magnetic head 10 between the source data track and the destination data track from the position information table, and determines the current position obtained from the position information table. The movement of the magnetic head 10 is controlled with reference to the speed profile. Here, the position information table reads the top value and the bottom value corresponding to the position between the data tracks of the magnetic head 10 from the storage unit 25, and as shown in FIG. Is a table generated to form. That is, a sine wave signal substantially similar to that obtained by the first pull-in is generated from the top value and the bottom value stored in the storage unit 25 after the first pull-in. Specifically, this waveform is shown as a quantized table, and is shown in FIG.
In the graph, the horizontal axis indicates the position in the data track, and the vertical axis indicates the quantized Band value. The Band value and the position direction are each equally divided. In the present embodiment, the Band value has 30 steps from 0 to 29 and the position direction has 0 to 29.
It is divided into 40 steps up to 39. In other words, this corresponds to a position obtained by dividing the width of one data track by 40 corresponding to each Band value. As described above, in the embodiment of the present invention, the zero-cross point is set as the center of the data track, and one cycle of the zero-cross point corresponds to the position in the source data track and the destination data track. That is, the position information table shown in FIG. 14 indicates the position between the data tracks.

[0083] Therefore, the position between the data tracks, be known by comparing the value of the first optical signal S _a obtained by moving to the Band value and the magnetic head 10 is actually data on the track it can. Here, the first optical signal S _a, as shown in FIG. 15, is monitored for each fixed time, the magnetic head 10 is detected by a voltage value such as a position within the data track being currently located . Therefore, the actually obtained first optical signal _Sa is converted into a digital value by a D / A converter (not shown),
Are compared in the position information table shown in FIG. The first optical signal S _a is monitored by the 0.24msec intervals.

More specifically, as shown in FIG.
When obtaining the digital numbers D _B in the optical signal S _a,
According to equation (1), _B is calculated based on the digital value DB.
An and number is calculated.

Band number = D _B −bottom value / ((top value−bottom value) / 30) (1) The Band signal obtained from the above equation (1), that is, the actual position of the magnetic head 10 The position corresponding to the Band value can be obtained by referring to the already obtained position information table shown in FIG.

[0086] Thus, based actually on the top and bottom values have been stored in the first optical signal S _a and the storage unit 25 obtained by moving the magnetic head 10, the magnetic head 10 in the data track The position can be accurately detected.

Then, the control section 9 calculates the actual moving speed of the magnetic head 10 (hereinafter referred to as a measured speed) from the detected position and compares it with the expected speed in the above-mentioned speed profile. Measurement speed, the first optical signal S _a which is output from the optical encoder 15 that monitors at regular time intervals is calculated by the difference. That is,
Monitoring the first optical signal S _a as shown in FIG. 15 at every predetermined time, detects a position of the magnetic head 10 from the position information table as described above, determined by dividing in the predetermined time interval Calculate the speed. That is, measurement speed = (position of current time−1 position before time) / Δt. Here, Δt is the constant time interval for monitoring and is 0.24 msec.

Then, the measured speed is compared with the expected speed to control the magnetic head 10 to be surely moved to the adjacent data track. The moving speed of the magnetic head 10 at each position is specifically controlled according to a flowchart shown in FIG.

First, in step S1, a digital value (quantized first optical signal S _a ) from the optical encoder 15 is read. Subsequently, as shown in step S2, the top value and the bottom value are read from the storage unit 25,
As described above, the position information (0 to 39) on the sine wave for one cycle normalized is generated.

Then, in step S3, the measurement speed is calculated. That is, the measured speed V _M = (current position−Δ
t) / Δt is calculated. Further, in the following step S4, searches the expected speed V _E corresponding to the current position from the table (speed profile).

[0091] Then, step S5, in step S6 and step S7, selects the coefficients K from the relationship of the measurement speed V _M and values expected speed V _E. Here, the coefficient K is a gain and is a parameter for determining the control strength. Therefore, in the present embodiment, the coefficient K is
Since it is determined by the determination in steps S5, S6 and S7, it is determined depending on the speed.

After the coefficient K is determined, step S8
In the control signal output from the control unit 9 to the magnetic head driving portion 6 is calculated by the control signal _{C = K × (V E -V} M). Here, the control signal C is a signal having a code, that is, in the case of V _E <V _M (if better measurement than the expected speed rate is excessive), a negative value, When V _E > V _M (when the measured speed is smaller than the expected speed), the value becomes a positive value.

The control signal C obtained in step S8 is output to the magnetic head driving section 6 in step S9. The magnetic head driving unit 6 controls driving of the magnetic head 10 by a head driving signal based on a control signal C from the control unit 9. If the control signal C is negative, that is, if the measured speed is higher than the expected speed, the magnetic head driving unit 6 moves the magnetic head 10 in the reverse direction to the control signal C. Drive according to the value of. On the other hand, when the control signal C is positive, that is, when the measured speed is smaller than the expected speed,
The magnetic head driving section 6 drives the magnetic head 10 in the positive direction according to the value of the control signal C. Note that V _E = V _M
In this case, the magnetic head driving unit 6 sets the driving force applied to the magnetic head 10 to zero. By the drive control by the magnetic head drive unit 6, the magnetic head 10 is smoothly decelerated toward a predetermined data track.

In step S10, it is determined whether the current position of the magnetic head 10 has exceeded the adjacent data track arrival point. Here, when it is determined that the current position has exceeded the position of the adjacent data track, the control for sending to the adjacent data track is terminated, and the above-described track follow control is performed. If the current position does not exceed the adjacent data track arrival position, the process ends.

As described above, the magnetic head 1 after the magnetic head 10 has reached the predetermined speed by the kick pulse.
In this example, since the movement speed is controlled to 0, FIG.
As shown in 2, the head drive signal S _H of the movement start after it control section (X ₁ to X ₂₎ is changed. For example, in this example,
The value of the head drive signal S _H is + than the value - the value and has been towards many, which in movement start after your control section (X ₁ ~X _2), the magnetic head 10 head drive signal S _H is mainly It can be seen that the vehicle is controlled to decelerate.

As described above, in response to the track feed request signal, the magnetic head 10 is started to be driven by the driving force for starting the magnetic head, which is a kick pulse. By monitoring the position and moving speed of the magnetic head 10 and appropriately controlling the moving speed, the magnetic head 10 can reach a predetermined data track. Then, the recording / reproducing apparatus 1 controls the track following of the magnetic head 10 sent to a predetermined data track by the lower tracking control circuit 7b with respect to the sent data track. That is, as shown in FIG. 11, the recording / reproducing apparatus 1 positions the magnetic head 10 sent by a seek track to an adjacent data track at a desired position in the data track by the track following. Note that the lower tracking control circuit 7b is inactive when the track feed control is being performed as described above.

As described above, the recording / reproducing apparatus 1 applies the maximum driving force, which is a kick pulse sufficient to reach the data track of the track destination requested by the external computer, to the magnetic head 10 at a predetermined position. Until it reaches. And after that, record /
The reproducing apparatus 1 controls the moving speed of the magnetic head 10 at each moving position based on the speed profile, and sends the magnetic head 10 to the requested data track.

Therefore, the magnetic head 10 is guaranteed to move in one direction and to a predetermined position, and thereafter is moved by the driving force applied at the start of the movement, and is desired only by speed control such as acceleration or deceleration. Is moved to the adjacent data track. That is, the recording / reproducing apparatus 1 can complete the transmission to the destination data track without determining the moving direction of the magnetic head 10 during the movement between the data tracks for the track transmission. Thus, the recording / reproducing apparatus 1 can complete the track feed of the magnetic head 10 within a predetermined time.

Here, the recording / reproducing apparatus 1 controls the magnetic head 1 over the entire range of the data track area of the lower disk.
0 by scanning, operation for acquiring the position information of the lower disc, i.e., the operation of accumulating the top and bottom values of the first optical signal S _a in the storage unit 25 will be described. Here, the operation of acquiring the position information is the above-described predetermined preparation operation.

First, as an operation for obtaining position information, the recording / reproducing apparatus 1 detects the mounting of the lower disk based on the detection results of the disk insertion detecting unit 31a and the upper disk detecting unit 31b, and 10 is once moved to the inner peripheral side of the lower disk.

Then, the recording / reproducing apparatus 1 moves the magnetic head 10 toward the outer periphery of the disk. This allows
Recording / reproducing apparatus 1 performs the retraction of the first optical signal S _a by the optical encoder 15. Retraction of the first optical signal S _a is, for example, a magnetic head 10 is performed until the position outside the data track area.

By such a pull-in operation, FIG.
Obtained first optical signal S _a shown in, the top and bottom values of the first optical signal S _a is the memory 25a of the recording unit 25, is stored in 25b.

For example, points S _T79 and S _B79 shown in FIG. 17 are points at which the top value and the bottom value are assumed to correspond to the innermost data track in the data track area. Further, the points S _T00 and S
_B00 is a point at which a top value and a bottom value corresponding to the outermost data track in the data track area are obtained. As shown in FIG. 17, the outermost data track of the data track area (the point _ST00
And also in the data tracks) thereafter being corresponding to the point S _B00, the first optical signal S _a is obtained, it is respectively stored in the memory 25a and the memory 25b as a top and bottom values.

As described above, the top value and the bottom value stored in the memory units 25a and 25b are used as information for generating the position information table.

[0105] Then, the recording / reproducing apparatus 1 which retraction completed the first optical signal S _a moves the magnetic head 10 to a predetermined data track in the data track region, the lower disc is inserted to the external computer A disc insertion signal is output to the effect. For example, the movement position of the first optical signal S _a pulling after the magnetic head 10 of the is the upper (data track is corresponding to the point S _T00 and point S _B00) the data track of the track number 0.

The external computer receives, for example, a track insertion request signal received via the external computer interface 100 of the recording / reproducing apparatus 1 and indicating that a lower disk has been inserted, and outputs a track feed request signal, for example.

FIG. 18 is a flowchart showing a series of steps for detecting the insertion of the lower disk and outputting to the external computer that the lower disk has been inserted, which will be described in detail.

In step S21, the control section 9 determines whether a magnetic disk (cassette) has been inserted. Here, when it is confirmed that the magnetic disk is inserted, the control unit 9 proceeds to step S22. If it is confirmed that no magnetic disk is inserted, the process proceeds to step S28.

In step S28, a report of "no disk" is sent to the external computer, and then, in step S21, the insertion of the cassette is confirmed again. That is, in the above-mentioned steps S21 and S28, until the magnetic disk is inserted, the external computer is kept informed that the magnetic disk is not inserted.

On the other hand, in step S22 when it is confirmed in step S21 that a magnetic disk has been inserted, the control section 9 determines whether or not the inserted magnetic disk is an upper-level disk. Here, if it is confirmed that the inserted magnetic disk is the upper disk,
Proceeding to step S30, processing corresponding to the upper disk is started.

On the other hand, if it is confirmed in step S22 that the inserted cassette is not the upper disk, the control section 9 proceeds to step S23 to perform a preparation operation for performing processing corresponding to the lower disk. I do.

After the preparation operation has been completed in step S23, the control section 9 reports "disk present" to the external computer in step S24. Then, in a succeeding step S25, the control unit 9 determines whether or not the eject button is pressed based on a signal output from the eject button operation detection unit 32. Here, if it is confirmed that the eject button has been pressed, the control section 9 proceeds to step S29 and ejects the magnetic disk. And the control part 9
Returning to step S21, the process enters a state of determining whether or not a cassette is mounted.

On the other hand, in step S26, which proceeds when it is confirmed in step S25 that the eject button has not been pressed, the control section 9 determines whether a command has been received from an external computer. Here, when it is confirmed that a command has been received from the external computer, the control unit 9 executes an operation according to the received command, and determines in step S25 whether the eject button has been pressed. Make a determination. Step S2
If it is determined in step 6 that no command has been received from the external computer, the control unit 9 again executes step S
At 25, it is determined whether or not the eject button has been pressed. That is, the control unit 9 executes the operation according to the command coming from the external computer until it is confirmed in step S25 that the eject button is pressed.

As described above, since the recording / reproducing apparatus 1 outputs the disc insertion signal indicating that the lower disk has been inserted to the external computer after executing the predetermined preparation operation, the lower disk is Even when the external computer receives the disc insertion signal indicating that the disc has been inserted and outputs the track feed request signal, it is possible to appropriately perform a measure corresponding to the track feed request signal. Therefore, the recording / reproducing apparatus 1 can reliably receive the control signal transmitted after the lower disk is mounted, and can prevent the performance and the function from being reduced.

After performing the operation of acquiring the position information of the lower disk, the recording / reproducing apparatus 1 moves the magnetic head to a predetermined data track, and then, as described above,
A disc insertion signal indicating that the lower disc has been inserted is output to the external computer. Thereby, the recording / reproducing apparatus 1 can complete the track feed of the magnetic head 10 to a desired data track at an early stage in response to the track feed request signal coming from the external computer.

[0116]

The recording / reproducing apparatus according to the present invention outputs a mounting signal indicating whether or not the recording medium has been mounted by the control means based on the detection result of whether or not the recording medium has been mounted detected by the mounting detecting means. . After the recording medium is mounted, the control means of the recording / reproducing apparatus performs a predetermined process and then outputs a mounting signal indicating that the recording medium is mounted.

Accordingly, the recording / reproducing apparatus always receives the mounting signal from the recording / reproducing apparatus to the effect that the recording medium is mounted, and performs a predetermined process after the recording / reproducing apparatus is mounted on the recording medium. You can output it after going.

Therefore, the recording / reproducing apparatus can surely receive the control signal transmitted after the recording medium is mounted, and can prevent the performance and the function from deteriorating.

Further, in the recording / reproducing method according to the present invention, a mounting detecting step for detecting whether or not the recording medium is mounted, and outputting a mounting signal indicating whether or not the recording medium is mounted based on the detection result in the mounting detecting step. And a mounting signal output step. In the mounting signal output step of the recording / reproducing method, after the recording medium is mounted, a predetermined process is performed, and then a mounting signal indicating that the recording medium is mounted is output.

Thus, according to the recording / reproducing method, it is possible to always output a mounting signal indicating that the recording medium is mounted on the recording / reproducing apparatus after performing the predetermined processing after the recording medium is mounted. .

Therefore, according to the recording / reproducing method, the control signal transmitted after the mounting of the recording medium is reliably received, and
It is possible to prevent a decrease in performance or function.

[Brief description of the drawings]

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

FIG. 2 is a block circuit diagram showing a more specific example of a recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 3 is a perspective view showing a magnetic head provided in the recording / reproducing apparatus.

FIGS. 4A and 4B are diagrams showing an example of a track gauge provided in the recording / reproducing apparatus, wherein FIG. 4A is a side view, and FIG. 4B is an enlarged view of a first opening and a second opening. FIG.

FIG. 5 is an enlarged plan view of the second opening.

FIG. 6 is a front view showing a structure of an optical encoder provided in the recording / reproducing apparatus.

FIG. 7 is a side view showing the optical encoder as viewed from an inner side surface 15b.

FIG. 8 is a diagram showing a first optical signal and a change in the first optical signal obtained when the magnetic head provided in the recording / reproducing apparatus is moved from the inner circumference to the outer circumference of the magnetic disk.

FIG. 9 is a diagram showing a top value and a bottom value of the first optical signal stored in a storage unit of the recording / reproducing apparatus.

FIG. 10 is a diagram showing a storage area for storing a top value and a bottom value in a storage unit provided in the recording / reproducing apparatus.

FIG. 11 is a diagram used for explaining that the recording / reproducing apparatus performs track following on a data track based on a first optical signal.

FIG. 12 is a diagram for controlling the moving speed of the magnetic head based on the first optical signal obtained from the optical encoder when the magnetic head is track-fed between the data tracks, and FIG. 7 is a diagram showing the history of a head drive signal and a first optical signal when the head is moved to a data track that has been moved.

FIG. 13 is a diagram showing a speed profile used for controlling the moving speed of a magnetic head that is track-fed.

FIG. 14 is a diagram showing a position information table obtained as a normalized sine wave signal obtained based on the top value and the bottom value stored in the storage unit.

FIG. 15 is a diagram illustrating an example of sampling of a first optical signal output from an optical encoder.

FIG. 16 is a flowchart for controlling the moving speed of the magnetic head to send the magnetic head to an adjacent data track.

FIG. 17 is a diagram used for explaining a top value and a bottom value obtained in _a first optical signal Sa to be drawn.

FIG. 18 is a flowchart showing a series of steps for detecting insertion of a lower disk and outputting to the external computer that the lower disk has been inserted.

[Explanation of symbols]

1 recording / reproducing device, 9 control unit, 31 disc discrimination unit

Claims (8)

[Claims] 1. A recording / reproducing apparatus for recording / reproducing an information signal on / from a mounted recording medium, comprising: a mounting detecting means for detecting whether or not the recording medium is mounted, and a detecting result of the mounting detecting means. Control means for outputting a mounting signal indicating whether or not the recording medium is mounted based on the fact that the control means performs a predetermined process after the mounting of the recording medium and indicates that the recording medium is mounted. A recording / reproducing apparatus which outputs a mounting signal of the recording / reproducing apparatus. 2. The recording / reproducing apparatus according to claim 1, wherein the predetermined process is a process required for controlling the mounted recording medium. 3. The recording medium has a plurality of data tracks formed substantially in parallel, and the data tracks do not store position information indicating the positions of the data tracks. 3. The recording / reproducing apparatus according to claim 2, wherein the processing of obtaining the position information corresponding to the data track formed on the recording medium. 4. Recording / recording of an information signal on the recording medium.
A recording / reproducing head for performing reproduction, wherein the control means performs processing for obtaining position information corresponding to the recording medium, and then places the recording / reproducing head on a desired data track based on the obtained position information. 4. The recording / reproducing apparatus according to claim 3, wherein a mounting signal indicating that the recording medium is mounted is output after being moved. 5. Recording for recording / reproducing an information signal on / from a first recording medium having a first recording density and a second recording medium having a second recording density higher than the first recording density. When the first recording medium is mounted, the control means performs predetermined processing and then outputs a mounting signal indicating that the first recording medium is mounted. Claim 1 characterized by the following:
The recording / reproducing apparatus according to claim 1. 6. The recording / reproducing apparatus according to claim 1, wherein the output of the mounting signal indicating that the recording medium is mounted is made to an externally connected computer. 7. A recording / reproducing method for recording / reproducing an information signal on / from a mounted recording medium, comprising: a mounting detecting step of detecting whether or not the recording medium is mounted; A mounting signal output step of outputting a mounting signal indicating the presence or absence of mounting of the recording medium based on the recording medium. A recording / reproducing method, which outputs a mounting signal indicating that the camera is mounted. 8. The recording / reproducing method according to claim 7, wherein the predetermined process is a process required for controlling the mounted recording medium.