JP2566132B2 - Mass storage device using magnetic disk - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mass storage device, and more particularly to a mass storage device using a flexible magnetic disk.

[Prior art and its problems]

Flexible magnetic disks are generally produced in large quantities,
It is widely used in the information recording field, and the device for recording and reproducing on this flexible magnetic disk is also popular.
It is used as an external storage device such as a personal computer.

By the way, the flexible magnetic disk is based on the premise of replacement, and has a limited storage capacity. Therefore, at each limit, the disk must be replaced manually.

On the other hand, there is a hard disk device as a large-capacity storage device, and this device is also widely used. However, since this hard disk device has a large capacity but is very expensive and a storage medium cannot be replaced normally, a streamer tape or the like must be used for backup to protect the stored information.

[Object of the Invention]

An object of the present invention is to provide a mass storage device that uses a flexible magnetic disk and can easily perform backup for information protection by exchanging the magnetic disk. Another object of the present invention is to be able to store a required number of magnetic disks when the information amount of one title exceeds the recording capacity of one magnetic disk.
Another object of the present invention is to provide a mass storage device capable of recording the storage position information of these magnetic disks on a magnetic body.

[Means for achieving the purpose]

In order to achieve the above object, the present invention provides a storage box in which a plurality of magnetic disks each having a magnetic body for recording / reproducing information provided in a part of a housing of a magnetic disk cartridge are stored in a plurality of storage positions, respectively. A magnetic disk recording / reproducing apparatus for recording / reproducing information on / from the magnetic disk, a loading / unloading means for loading / unloading the magnetic disk stored in the storage into the magnetic disk recording / reproducing apparatus, and a plurality of storages in the storage. Moving means for moving the storage so that a designated one of the storage positions is positioned so as to face the loading / unloading means, and recording / reproducing of information to / from the magnetic body provided in the housing of the magnetic disk cartridge. A magnetic material recording / reproducing means for performing the operation, the loading / unloading means is disposed so as to face the magnetic disk recording / reproducing apparatus, and the storage is exchangeably disposed. In addition, when the information amount of one title exceeds the storage capacity of one magnetic disk, the recording / reproducing means for the magnetic material records the accommodation position information of the magnetic disk to be recorded next on the magnetic material. It is characterized by having done.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a flexible magnetic disk used in the present invention.
This is the same as the conventional flexible magnetic disk except that a magnetic body 11 for recording information is provided on a part of the outer surface of the cartridge housing 12 in the top view of 10.

FIG. 2 is a perspective view showing the inside of the storage device which is an embodiment of the present invention. Reference numeral 20 denotes an apparatus housing, which is internally provided with a storage case 21 for storing a predetermined number of the flexible magnetic disks 10 shown in FIG. The storage case 21 has a cylindrical shape as shown in the figure, has storage positions outside the cylinder at equal intervals, and can be rotated by a motor 22. Reference numeral 23 is an insertion port for loading the flexible magnetic disk 10 into each storage position, and the storage box 21 is sequentially inserted and loaded while rotating the storage box 21.

At a predetermined position around the storage 21, a take-out device 25 for taking out the flexible magnetic disk 10 from the storage 20 and setting it on the magnetic disk recording / reproducing device 24 is fixedly arranged.

The take-out device 25 has an inverted L-shape as shown, and has a grip portion 251 for gripping the magnetic disk and a motor 252 for vertically moving the grip portion 251. Therefore, the inverted L-shaped take-out device 25
The magnetic disk 10 in the storage 21 stopped opposite to is grasped by the grip portion and lowered by the drive of the motor 252, whereby the magnetic disk 10 is reproduced by the magnetic disk recording / reproducing apparatus.
Set inside 24. After the completion of the operation, the magnetic disk is again grasped by the grasping portion 251, moved upward by the drive of the motor 252, and returned to the storage 21.

A recording / reproducing head 26 is provided for recording or reproducing information on or from the magnetic body 11 on the surface when the magnetic disk 10 is set in or taken out of the magnetic disk recording / reproducing device 24.

Reference numeral 27 is an interface connector for connecting to, for example, a personal computer using this storage device.

FIG. 3 is a circuit diagram showing the control and drive system of this storage device. The input / output circuit 30 is a circuit which is connected to an external personal computer via an interface connector 27 to transfer data. Arithmetic and control circuit
Reference numeral 31 is connected to the input / output circuit 30, and a start signal from the input / output circuit 30 starts arithmetic and control operations. Memory circuit 32
Stores the operation program of the arithmetic and control circuit 31 and the state of the storage case 21. Reference numeral 33 is a recording / reproducing circuit of the recording / reproducing head 26.

 Next, the operation will be described.

Now, when there is a request to write information to the input / output circuit 30 via the interface connector 27, this is transmitted to the arithmetic and control circuit 31. The arithmetic and control circuit 31 accesses the memory circuit 32, searches for a storage position of an empty magnetic disk, drives the motor 22, and extracts the storage position.
Stop moving to position 25. After that, the arithmetic and control circuit 31 drives the motor 252 to set the magnetic disk in the magnetic disk recording / reproducing device 24. After that, the magnetic recording / reproducing device 24 is started in the recording state. Thus, the information input through the interface connector 27 is
The data is recorded on the magnetic disk 10 by the magnetic recording / reproducing device 24 via the input / output circuit 30.

When the maximum storage capacity of the magnetic disk is written, the magnetic disk recording / reproducing device 24 stops recording / reproducing and sends a signal to the arithmetic and control circuit 31. In response to this, the arithmetic and control circuit 31 again accesses the memory circuit 32, searches for the storage position of another empty disk, sends the storage position information to the recording / reproducing circuit 33, drives the motor 252, and drives the magnetic disk. Is taken out from the magnetic disk recording / reproducing device 24 and stored in the storage 21. At this time, the recording / reproducing head 26 records the storage position information on the magnetic body 11 on the surface of the magnetic disk. After that, arithmetic and control circuit
31 drives the motor 22 to move the newly searched storage position to the position of the take-out device 25 and stop. After that, the magnetic disk is set in the magnetic disk recording / reproducing circuit 24 and information is recorded in the same manner as described above. The same operation will be continued until the input information to be recorded is completed.

When the end signal of the input information is input to the input / output circuit 30, the arithmetic and control circuit 31 stops the magnetic disk recording / reproducing device 24 and then drives the motor 252 to store the magnetic disk in the original storage position. To do.

In the memory circuit 32, a code indicating the title of the information is recorded at the storage position of the magnetic disk where recording is first started, and a recorded code is subsequently recorded at the storage position of the magnetic disk. .

Next, when a read request for the information recorded on the magnetic disk is input to the input / output circuit 30, the arithmetic and control circuit 31 sends the information indicating the title of the information transferred from the input / output circuit 30 to the card. The storage position of the magnetic disk in which the information is recorded is searched in the memory 32, and the motor 22 is driven so that the searched storage position is positioned in the ejecting device 25. After that, the motor 252 is driven to set the magnetic disk in the magnetic recording / reproducing device 24, and this is operated in the reproducing state. Thus, the reproduced information is sent from the interface connector 27 to the personal computer or the like via the input / output circuit 30. When all the recorded information on the magnetic disk has been read, the magnetic disk recording / reproducing apparatus 24 stops and sends a signal to the arithmetic and control circuit 31. In response to this, the arithmetic and control circuit 31 drives the motor 252 to store the magnetic disk in the storage 21, and at the same time operates the recording / reproducing circuit 33 to read the information recorded on the magnetic body 11. If the read information indicates the storage location of the storage case 21, the arithmetic control circuit 31 drives the motor 22 to position the storage location to the ejecting device 25, and in the same manner, the information is read from the magnetic disk. Read out.

As described above, even if the information amount of one title exceeds the storage capacity of one magnetic disk, it can be automatically stored in the required number of magnetic disks, and the links between the magnetic disks are magnetic. It is easily taken by writing on the body 11.

The information recorded in the magnetic body 11 may be the code and number of the information title instead of the storage position as described above, and the relationship between these and the storage position may be recorded in the memory 32.

When one title has a small amount of information and is recorded in a part of the storage capacity of one magnetic disk, a code indicating a part of the magnetic disk storage position of the memory circuit 32 together with the code of the title. Should be recorded.

If the storage 21 is removable and can be replaced with another storage, backup can be easily performed.

Further, the storage case may be fixed and the take-out device may be moved. In that case, the storage case and the magnetic disk recording / reproducing device may be provided at separate places.

〔The invention's effect〕

As described above, according to the present invention, a large-capacity storage can be performed while using a flexible magnetic disk, and backup for data protection is easy, so a database system using a flexible magnetic disk is provided. Also, there is an advantage that it is possible to manage a large number of programs. Further, according to the present invention, when the information amount of one title exceeds the storage capacity of one magnetic disk, it can be stored in a required number of magnetic disks, and the storage position information of these magnetic disks can be stored magnetically. Can be recorded on the body.

[Brief description of drawings]

FIG. 1 is a top view showing the appearance of a flexible magnetic disk used in one embodiment of the present invention, FIG. 2 is an internal perspective view showing the configuration of one embodiment of the present invention, and FIG. 3 is a control and drive circuit. It is a block diagram which shows a system. 10 …… Flexible magnetic disk, 11 …… Recording / reproducing magnetic material, 21 …… Storage, 22 …… Motor, 24 …… Magnetic disk recording / reproducing device, 25 …… Ejecting device, 26 …… Recording / reproducing head

Continuation of the front page (56) Reference JP-A-59-104757 (JP, A) JP-A-59-104758 (JP, A) JP-A-59-104759 (JP, A) JP-A-60-1646 (JP , A) JP 60-111366 (JP, A) JP 60-157787 (JP, A) Actual opening Sho 60-51659 (JP, U) Actual opening 61-34684 (JP, U) Actual opening 59-104385 (JP, U)

Claims (1)

(57) [Claims] 1. A storage case in which a plurality of magnetic disks each having a magnetic body for recording and reproducing information provided in a part of a housing of a magnetic disk cartridge are respectively stored in a plurality of storage positions, and information is stored in the magnetic disk. A magnetic disk recording / reproducing device for recording and reproducing, a loading / unloading means for loading / unloading the magnetic disk stored in the storage into the magnetic disk recording / reproducing device, and a plurality of storage positions of the storage are designated. Moving means for moving the storage so that one of them is positioned so as to face the loading / unloading means, and recording for magnetic material for recording / reproducing information on / from the magnetic material provided in the housing of the magnetic disk cartridge. A reproducing unit, the loading / unloading unit is arranged to face the magnetic disk recording / reproducing apparatus, the storage is arranged to be replaceable, and When the amount of information exceeds the storage capacity of one magnetic disk, the recording / reproducing means for magnetic material records information on the accommodation position of the magnetic disk to be recorded next on the magnetic material. A mass storage device using a magnetic disk.