JPH03144962A - Control method for ejection prohibition operation in controller of information recording/reproducing device - Google Patents

Abstract

PURPOSE:To execute an operation without the danger of destroying a recording medium and recording data by automatically executing a prohibition operation when there is the need of the prohibition of an ejection operation owing to the self circumstances of a prescribed device. CONSTITUTION:It is assumed that the need of an ejection prohibition operation is generated owing to the self circumstances in one of host computers 30, controllers 1 and magneto-optical disk devices 5 being information recording devices. Then, the ejection prohibition operation is assumed to automatically be executed. Thus, the danger of the destruction of the information recording medium and recording data is eliminated and the reliability of a system can be improved. The prohibition operation is executed in the same way in spite of a recording mode time or a reprodcing mode time.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention is directed to an eject prohibition operation in a control device that is connected between a host computer and an information recording/reproducing device and controls the information recording/reproducing device. Regarding control method.

(Prior art) In recent years, information recording/reproducing devices such as magneto-optical disk devices,
It is used for computer data recording, document files, etc.

The magneto-optical disk cartridge used in this magneto-optical disk device is a magneto-optical disk for recording/playback that can be freely erased and rewritten, and is made of resin for ease of handling and to make it removable from the recording/playback device. It is housed in a case.

FIG. 2 is a configuration diagram showing an example of a conventional magneto-optical disk used in the device shown in FIG. 3, which will be described later. FIG. 2 (A) is a bottom view and FIG. 2 (B) is a partially enlarged sectional view. .

As shown in the figure, the conventional magneto-optical disk 2 has a substrate 2a, which is a disc made of transparent resin such as polycarbonate, on one surface of which is made of Fe, Co, etc. for recording and reproducing information using the magneto-optic effect. , Tb, Gd, etc.
WA) 2b is formed, a protective film 2c made of ultraviolet curing resin or the like is further formed thereon, and a hub 4 made of a metal plate for driving the disk 2 is fixed to the center. As mentioned above, it is housed in a thin box-shaped case made of resin (not shown) and becomes a magneto-optical disk cartridge.

Windows are formed on the top and bottom of the case, and both windows are closed by shutters when the cartridge is not in use, and can be opened by sliding the shutter sideways when in use. It has a structure that allows

In the recording area 3 in which information is recorded/reproduced on the magneto-optical film 2b of the disk 2, there is a spiral or concentric groove.
．． A large number of recording tracks are formed at a pitch of 5 μm.

Each recording track has 21 sectors each consisting of a data area where information is recorded/reproduced and a management area where management information is recorded in advance.

FIG. 3 is a schematic configuration diagram showing an example of a conventional magneto-optical disk device, in which FIG. 3(A) is a partially cutaway perspective view, FIG. 3(B) is a side sectional view, and FIG. FIG. 2 is an explanatory diagram of the recording and reproducing operation of the device.

As shown in the figure, a conventional magneto-optical disk device 5 is used with the magneto-optical disk 2 mounted thereon, and an electromagnet 6,
Optical recording/reproducing device 7, feed device [20, base 21,
It is composed of a chassis 22, a load/eject device 23, an electromagnet up/down device 24, a rotary drive device 25, and the like.

When the aforementioned magneto-optical disk cartridge is inserted by the user's hand through the cartridge insertion slot 22b provided in the front panel 22a of the chassis 22, the shutter is opened by a shutter opening/closing device (not shown), and the load/eject is opened. By the loading operation by the device 23, it is positioned at a predetermined recording/reproducing position.

Further, the disk 2 is held at a position where the hub 4 is chucked by a drive hub 25b fixed to a drive shaft of a spindle motor 25a of the rotary drive device 25 and does not come into contact with the inner wall of the case. The disk 2 is rotationally driven at a CAV of 3.60 (lrpl) by the rotational torque of the spindle motor 25m.
Due to the action of the electromagnet up/down device 24, a vertical bias magnetic field of a predetermined polarity is applied to the magneto-optical film 2b as required by the electromagnet 6 disposed on the protective film 2C side with a gap therebetween. Ru. Further, the optical recording/reproducing device 7 is applied to the magneto-optical film 2b from the substrate 2a side.
Recording and reproduction of information is performed by the laser beam 16 from.

This optical recording/reproducing device 7 includes a laser diode 8, a collimating lens 9, a beam splitter 10° raising prism 11, an objective lens 12, a polarizing beam splitter 13,
Condenser lenses 14A and 14B.

It is composed of photodiodes 15A, 15B, etc.

The laser light emitted from this laser diode 8 is made into parallel light by a collimating lens 9, and then
The cross-sectional shape of the beam is shaped into a predetermined shape by a beam shaping prism (not shown), and the beam passes through the beam splitter 10 and enters the rising prism 11 . The laser beam 16 reflected by the raising prism 11 is transmitted to the objective lens 12 (from the objective lens 12) as a light spot 17 with a minute diameter on the surface of the magneto-optical film 2b on the recording track of the recording area 3 of the disk 2. irradiated on top.

A light spot 17 irradiated onto the surface of this magneto-optical film 2b
has a light intensity suitable for recording when the device 7 is operating in the recording mode, and has a light intensity suitable for reproduction when the device 7 is operating in the playback mode. As in, laser diode 8
It is controlled by an output control device (not shown).

In this recording mode, the perpendicular magnetization direction of the magneto-optical film 2b on the recording track is reversed by the bias magnetic field of the electromagnet 6 only where the optical spot 17 hits, based on a digital signal corresponding to the recording data. This causes the digital signal to be recorded.

In the case of the reproduction mode, the direction of rotation of the polarization plane of the laser beam reflected on the surface of the magneto-optical film 2b changes depending on the perpendicular magnetization direction of the magneto-optical film 2b due to the magneto-optic effect. , is reflected by the beam splitter 10 via the objective lens 12 and the rising prism 11, and enters the polarizing beam splitter 13 via a 172 wavelength plate (not shown). The laser beam transmitted through the polarizing beam splitter 13 is focused by the condensing lens 14A, converted into an electric signal by the photodiode 15A, and output as a detection signal, and is reflected by the polarizing beam splitter 13. The collected laser light is focused by the condenser lens 14B, converted into an electric signal by the photodiode 15B, and output as a detection signal.

At this time, the magnitudes of both detection signals change in opposite directions depending on the rotation direction of the polarization plane as described above due to the action of the polarization beam splitter 13, so the digital signal is reproduced from the difference between these two detection signals. be exposed.

When the optical recording/reproducing device 7 is in operation, an indicator 22c disposed on the front panel 22a lights up to indicate that it is in operation.

Of this optical recording/reproducing device 7, the laser diode 8
, collimating lens 9, beam splitter 10, polarizing beam splitter 13, condensing lenses 14A, 14B, and photodiode 15A.

A fixed part unit 7-1 consisting of 15B etc. is fixed to the base 21, and a movable part unit 7-2 consisting of the raising prism 11, objective lens 12 etc. is attached to the movable part 20b of the feed device 20. It is installed. In this feed device 20, a movable portion 20b moves in the radial direction of the disk 2 along a guide rail (not shown) via a bearing 20c by the driving force of a linear motor 20a of this WL 20 fixed to a base 21. The recording track is searched by moving the optical spot 17 from the inner diameter to the outer diameter of the recording area 3 of the disk 2, a so-called feed operation. In addition, this base 21. is configured to be held by the chassis 22 via a vibration isolating mechanism (not shown).

In addition, so-called focus servo, which automatically makes the focus of the optical spot 17 follow the surface of the magneto-optical film 2b in response to surface wobbling of the disk 2, is based on a focus servo signal based on the detection signal output. Based on this, the vertical position of the objective lens 12 is controlled by a focus servo actuator 18 mounted on the movable part 20b of the feed device rIt20.

Also, due to the eccentricity of the disk 2, the optical spot 17
The so-called tracking servo, which automatically follows the recording track, adjusts the position of the objective lens 12 in the radial direction of the disk 2 based on a tracking servo signal based on the detection signal output from the management area. This is done by controlling one tracking servo actuator mounted on the. Since the movement range of the optical spot 17 in the radial direction of the disk 2 due to this tracking servo operation is normally about several hundred μm, the positioning of the optical spot 17 in the radial direction of the disk 2 is as follows.
The tracking servo operation is responsible for precise positioning, and the feed operation is responsible for rough positioning.

After the above-mentioned recording/reproduction is completed, the end of the disk cartridge is inserted into the cartridge insertion slot by an ejecting operation by the load/eject device 23 due to the pressing force of the eject button 23a provided on the front panel 22a by the user. 22b.

At this time, in conjunction with the operation of the load/eject device 23, the electromagnet 6 is returned to the upper standby position by the action of the electromagnet up/down device 24.

When the user extracts the disk cartridge, the shutter is closed by the shutter opening/closing device, and the disk cartridge is removed.

The operation of the conventional magneto-optical disk device 5 described above is as follows.
Force 5 is summarized to explain its operating principle.
In actual operation, the recording mode includes a series of operations: erase, write, and verify.

That is, in the above-mentioned conventional magneto-optical disk 2, since the magneto-optical film 2b cannot be overwritten, which is possible with magnetic tapes, magnetic disks, etc., the recording operation is first performed prior to the recording operation. An erasing operation for the section is performed, and then a recording operation is performed. Furthermore, since this magneto-optical film 2b lacks reliability, a verification operation is performed after this recording operation. That is, this recording section is reproduced (read), the recorded signal and the reproduced signal are compared, and if they match,
Move on to the next action. In the case of non-coincidence, the recording signal of this part is recorded again in a pre-prepared alternative area, and
Thereafter, so-called substitution processing is performed in which verification and recording addresses are changed.

Control of the magneto-optical disk device 5 is performed by a control device connected between the disk device 5 and the host computer.

FIG. 5 is an explanatory diagram of the operation of an example of the control device of the apparatus shown in FIG. 3, in which (A) shows the operation in the recording mode, and (CB) in the same figure shows the operation in the playback mode.

As shown in the figure, the conventional @control device 1 is connected between a host computer 30 and the magneto-optical disk device 5.

As shown in Figure (A), in the recording mode,
The host computer 30 outputs signals such as a recording command, recording section designation, and recording data to the control device 1. In this control device 1, during a recording operation, an error correction code is added to the recording data and modulation is performed to generate a recording signal. The control device 1 instructs the disk device 5 to switch between search operation, erase operation, recording operation, and verification operation, controls the bias magnetic field by the electromagnet 6, controls the output intensity of the laser diode 8, and controls the recording interval. The position of the objective lens 12 is controlled, and a recording signal is input during a recording operation.

After the search, erasing, and recording operations are completed by the disk device 5, a reproduction signal for a collation operation is input to the control device 1. In the control bag M1, the reproduced signal is demodulated, the above-mentioned verification is performed, the above-mentioned alternative processing is performed as necessary, and a recording command completion report is sent to the host computer 30.

As shown in FIG. 2B, in the playback mode, the host computer 30 outputs signals such as playback commands and playback section designations to the control device 1. This control device 1 instructs the disc device 5 to switch between search operation and reproducing operation, controls the electromagnet 6, controls the laser diode 8, and controls the objective lens 1 in the reproducing section.
2 position control etc. are performed. This disk device 5 performs search and reproduction operations, and the control device 1 performs demodulation, error detection, and
If the correction is made and the playback operation fails, a retry operation is performed in which the playback operation is performed again, and the playback data is output to the host computer 30.

In this magneto-optical disk device 5, when the user presses the eject button 23a during the above-mentioned recording/reproducing operation, when the above-mentioned eject operation is performed, the disk 2 is ejected.
Since there is a risk of destroying the recorded data, when an instruction is received from the control device 1, a protection device (not shown) prevents the ejection operation from being performed until the series of operations being executed is completed. configured to run.

Next, a conventional example of a method of controlling the ejection inhibiting operation of the disk device 5 by the control device 1 will be described.

FIG. 6 is a control operation flow diagram showing an example of a conventional control method for the ejection inhibiting operation in the control device of FIG.

As shown in the figure, the conventional eject inhibiting operation control method automatically executes the eject inhibiting operation only when the magneto-optical disk device 5 has a need for the eject inhibiting operation due to its own convenience. be. That is, only when there is a need for an eject prohibition operation due to personal reasons such as recording and playback operations in the recording mode, playback mode, privilege, etc., the disk drive 5 automatically executes the ejection prohibition operation; host computer 3
0, when there is a need to prohibit ejecting for personal reasons, such as when accessing a file to record and play back a series of data and a directory corresponding to this data, ejecting is prohibited only when the user instructs to prohibit ejecting. perform an action.

Therefore, if the host computer 30 has this need and the user does not instruct the ejection prohibition operation, or if the control device 1 has a need for the ejection prohibition operation due to its own convenience, the ejection prohibition operation will not be executed. This is because in the conventional system, even though the indicator 22c disposed on the front panel 22a of the disk device 5 may be displayed for several seconds during a series of operations of this device 5, this series of operations is This is because the design is such that the user does not press the eject button 23a until the process is finished.

(Problems to be Solved by the Invention) In the conventional eject prohibition control method as described above, when the user presses the eject button 23a during a series of operations of the disk drive 5, Since the ejecting operation may be performed in such a state, there is a problem that there is a risk that the disc 2 and recorded data may be destroyed.

That is, in the recording mode, when the user does not instruct the eject prohibition operation, and the host computer 30 is accessing the above-mentioned file, the indicator 22c is displayed for a short period of time between data recording and directory recording. If the user presses the eject button 23a, for example, this directory becomes unrecorded. In addition, when the control device 1 presses the eject button 23a because the indicator 22c is cleared for a short time between the verification operation and the alternative processing operation during the above-mentioned alternative processing, for example, if the user presses the eject button 23a, this alternative processing becomes incomplete. In either case, there is a risk that the recorded data will be logically destroyed and the disk 2 will be physically destroyed.

Also, in the reproduction mode, there is a risk similar to that in the recording mode.

The present invention has been made with attention to the above points, and an object of the present invention is to provide a method for controlling an eject prohibition operation in a control device of an information recording/reproducing device, which eliminates the risk of destroying information recording media and recorded data. It is something to do.

(Means for Solving the Problems) A method for controlling an eject prohibition operation in a control device for an information recording/reproducing device according to the present invention is a method for controlling an eject prohibition operation in a control device for an information recording/reproducing device, which is a method for controlling an eject prohibition operation between a host computer and an information recording/reproducing device capable of loading and ejecting an information recording medium. A control method in a control device connected between the host computer and controlling the information recording/reproducing device based on operation instructions of the host computer.
In the control method for an eject prohibition operation in which the information recording medium is not ejected until a series of operations being executed in the playback device is completed, at least one of the host computer, the control device, and the information recording/playback device is provided. If there is a problem in the ejection prohibition operation at one location due to the convenience of each device, the above-mentioned problem is solved by automatically executing the ejection prohibition operation.

(Embodiment) A method for controlling an eject prohibition operation in a control device for an information recording/reproducing apparatus according to the present invention includes the host computer,
If at least one of the control device and the information recording/reproducing device has a need for the ejection prohibition operation due to the convenience of each device, the ejection prohibition operation is automatically executed. .

Regarding one embodiment of the present invention, an example of a method for controlling a magneto-optical disk device will be described as in the case of the conventional example described above.

FIG. 1 is a control operation flow diagram showing an embodiment of the control method for the ejection prohibition operation of the present invention in the control device of FIG.

As shown in the figure, the method for controlling the eject prohibition operation according to the embodiment of the present invention is such that at least one of the host computer 30, the control device 1, and the magneto-optical disk device 5 If there is a need for an eject prohibition operation, this ejection prohibition operation is automatically executed. That is, in the recording mode, if the host computer 30 has a need for an eject prohibition operation due to personal convenience such as the above-mentioned file access, this control device 1 is configured to perform an ejection prohibition operation due to personal convenience such as the above-mentioned alternative process. If there is a need, and if the disk device 5 has a need for an eject prohibition operation due to its own circumstances such as a recording operation, the ejection prohibition operation is automatically executed. In addition, in the playback mode, if there is a need for an eject prohibition operation due to personal convenience, such as when the host computer 30 is accessing a file, when the control device 1 is trying the above-mentioned replay operation, or when the disk drive 5 is playing, the automatic The eject prohibition operation is executed automatically.

Therefore, according to the eject prohibition operation control method of the embodiment of the present invention described above, even if the user presses the eject button 23a during a series of operations of the disk device 5, the eject operation is performed. Because there is no
There is no danger that the disc 2 and recorded data will be destroyed.

The above description of the embodiment of the present invention is an example of a method in which the load/eject device 23 in the disk device 5 utilizes the user's manual power, and is applied to this method. The control method of the present invention can also be applied to a method using electromagnetic force, such as that described in .

Further, the description of one embodiment of the present invention is based on the magneto-optical disk device 5.
Although an example of control has been described above, the control method of the present invention is applicable to control of an information recording/reproducing device such as an optical disk device.

(Effects of the Invention) The method for controlling an eject prohibition operation in a control device for an information recording/reproducing device according to the present invention as described above is such that at least one of the host computer, the control device, and the information recording/reproducing device If there is a need for the eject prohibition operation due to the convenience of each device, the ejection prohibition operation is automatically executed. Therefore, there is no risk of destruction of the information recording medium and recorded data, and this operation is possible. Improves system reliability. or,
Automatic foolproof operation improves the functionality of this system.

[Brief explanation of the drawing]

FIG. 1 is a control operation flowchart showing an embodiment of the control method for the eject prohibition operation of the present invention in the control device shown in FIG. 5, and FIG. FIG. 3 is a configuration diagram showing an example, in which FIG. 3A is a bottom view, FIG. 3B is a partially enlarged cross-sectional view, and FIG. ) is a partially cutaway perspective view, FIG. 4 is a side sectional view, FIG. 4 is an explanatory diagram of the recording/reproducing operation of the device in FIG. 3, and FIG. 5 is an example of the operation of the control device of the device in FIG. 3. In the explanatory diagrams, FIG. 6A shows a control operation flow in the recording mode, FIG. 6B shows an example of the playback mode, and FIG. It is a diagram. 1... Control device, 2... Magneto-optical disk (information recording media), 5...
・Magneto-optical disk device (information recording/reproducing device), 23・
...Load/eject device, 30...Host computer.

Claims (1)

[Claims] A control method for a control device that is connected between a host computer and an information recording/playback device capable of loading and ejecting information recording media, and controls the information recording/playback device based on the operation instructions of the host computer. In the control method for an eject prohibition operation in which the information recording medium is not ejected until a series of operations being executed by the information recording/reproducing device is completed, the host computer, the control device, and the information recording/reproducing device Control of an information recording/reproducing device, characterized in that if there is a need for the eject prohibition operation due to the convenience of each device in at least one part of the device, the ejection prohibition operation is automatically executed. A method of controlling ejection prohibition operation in a device.