JPH03238664A - Discriminating method for medium attribute of floppy disk - Google Patents

Abstract

PURPOSE:To miniaturize a disk drive device by inserting a floppy disk into the disk drive device from a display part side, and reading and storing the information of a display part. CONSTITUTION:When the floppy disk 4 is inserted into the drive device 3 from the display part 2 side before accessing a medium in order to discriminate the display part 2, it is confirmed by a first switch SW1 whether the floppy disk 4 is inserted up to a prescribed position or not, and the insertion direction of the floppy disk 4 is detected by a second switch SW2. Then, in the case where both the first and the second switches SW1, SW2 are ON in a state that the floppy disk 4 is discriminated, a discrimination signal showing whether a write inhibition hole 7 and a kind indication hole 6 are opened or not, that is, the medium attribute information of the floppy disk 4 is fetched. Thus, the disk drive device 3 need not be formed into size capable of receiving the floppy disk 4 perfectly, and it is miniaturized.

Description

[Detailed description of the invention] 【overview】

Regarding a method for identifying the media attributes of a floppy disk, the purpose of the present invention is to provide a method for identifying the media attributes of a floppy disk that can reduce the size of a disk drive device. A method for identifying a medium attribute of a floppy disk in which a disk drive device identifies a medium attribute display portion formed near a peripheral portion facing the floppy disk, the floppy disk being used by inserting the floppy disk into the disk drive device from the medium access window side. First, a floppy disk is inserted into the disk drive device from the display section side, and the information on the display section is read and stored by a reading device installed in the drive device. (Industrial Application Field) The present invention relates to a method for identifying medium attributes of floppy disks, particularly 3.5-inch floppy disks.In recent years, small electronic devices such as notebook computers and notebook word processors have become popular. As a result, there is a need for compact disk drive devices.

[Conventional technology]

FIG. 5 shows a 3.5-inch type floppy disk, in which, in addition to the shutter 5 that covers the medium access window 1,
A type display hole 6 for displaying the medium type, 2DD type or 2HD type, and a write prohibition hole 7 for indicating whether or not write is prohibited.
An identification device in the floppy disk drive device 3 reads whether or not the type display hole 6 and the write inhibit hole 7 are open, and sends out a warning signal in response to a write command, for example. ing. and,
These medium attributes can be identified because the medium attribute display section 2 is formed near the edge on the opposite side of the edge where the medium access window 1 is formed. It was done with the device fully inserted inside.

[Problem to be solved by the invention]

However, in the above-described identification method, the disk drive device 3 has at least the floppy disk 4.
Since it has to be formed in a size large enough to accommodate the entire structure, it has the disadvantage that there is a limit to miniaturization. The present invention has been made to solve this problem, and an object of the present invention is to provide a method for identifying the medium attributes of a floppy disk, which can reduce the size of the disk drive device 3.

[Means to solve the problem]

According to the present invention, the above object is to identify, by the disk drive device 3, the medium attribute display section 2 formed near the edge section opposite to the edge section where the medium access window 1 of the medium protection case is formed. In the method for identifying the medium attributes of a disk, before inserting the floppy disk 4 into the disk drive device 3 from the medium access window 1 side and using it, insert the floppy disk 4 into the disk drive device 3 from the display section 2 side. This is achieved by providing a method for identifying medium attributes of a floppy disk, which is characterized in that the information on the display section 2 is read and stored by a reading device installed in the drive device 3.

[Effect]

Based on the above configuration, identification of media attributes in the present invention is as follows:
This is done by inserting the floppy disk 4 from the display section 2 side. As a result, it is no longer necessary to form the disk drive device 3 to a size that completely accommodates the floppy disk 4, and miniaturization can be achieved.

【Example】

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Fig. 1 shows an embodiment of the present invention, and 4 in the figure is 3.5.
An inch type floppy disk, 5 is a shutter that opens and closes the medium access window 1 of this floppy disk 4, 8 is a notch provided to inform the user of the disk insertion direction, and 3 is a floppy disk drive device. Near the edge of the floppy disk 4 opposite to the edge where the shutter 5 is provided, there is a write-protection hole 7 for preventing erroneous erasing on the floppy disk 4.
A medium attribute display section 2 is provided which includes a type display hole 6 for identifying whether the floppy disk 4 is a 2DD type or a 2HD type. In the present invention, in order to identify the display section 2, the floppy disk 4 is inserted into the drive device 3 from the display section 2 side before accessing the medium.
When the floppy disk 4 is inserted into the drive device 3, a first switch SWI provided in the drive device 3 confirms whether or not the floppy disk 4 has been inserted to a specified position, and a second switch SW2 confirms that the floppy disk 4 is inserted into the drive device 3. 4 insertion direction is detected. FIG. 2 shows a structure for identifying the insertion direction of the floppy disk 4, in which the first and second switches S
W1 and SW2 are normally oven switches that are pressed and turned on by the edge of the floppy disk 4 when the medium access window 1 reaches the position corresponding to the access head 9 of the drive device 3; Figure 2(a)
As shown in , when the floppy disk 4 is inserted from the medium access window L side, the first switch SWI is turned on.
Therefore, the second switch SW2 is kept in the OFF state due to the presence of the notch 8. On the other hand, Fig. 2(b)
As shown in , when the floppy disk 4 is inserted from the display section 2 side, the first and second switches SWI, SW
Both are turned on, and these first and second switches SWI, S
The insertion direction and insertion state of the floppy disk 4 are recognized by the combination state of W2. In addition, in FIG. 2, the first and second switches SWI,
Although we have shown the case where SW2 is configured with a mechanical switch,
In addition to this, a switch using optical means may be used. Also, at this stage, when it is identified that the floppy disk 4 has been inserted from the medium access window 1 side,
As will be described later, it is also possible to perform disk operations by reusing previously read media attribute information, and a message may be displayed on the display device etc. to prompt the user to reverse the floppy disk 4 and insert it again. is also possible. With the insertion direction of the floppy disk 4 identified as described above, if the first and second switches SW1 and SW2 are both ON, that is, if the floppy disk 4 is inserted from the medium access window 1 side. is an identification signal indicating whether the write inhibit hole 7 and the type display hole 6 are opened;
That is, the medium attribute information of the floppy disk 4 is imported. FIG. 3 shows a structure for identifying the medium attributes, in which third and fourth switches SW3 and SW4 are provided at positions corresponding to the write inhibit hole 7 and the type display hole 6. When the write-protection hole 7 and the type display hole 6 are open, the detection rod 10 falls into the openings and is turned off. As described above, the media attributes stored as a 2-bit bit string are stored in the disk drive device 3.
The information is stored in the memory of the control device, and is used as information when accessing the medium, which will be described later. After acquiring the medium attribute information in this way, the floppy disk 4 is removed from the drive device 3 and then inserted again from the medium access window 1 side to perform normal continuous loading and writing. Therefore, according to this embodiment, the drive device 3 is connected to the floppy disk 4 in order to obtain medium access information.
It is not necessary to form it to a size that completely accommodates the
The device can be made smaller. FIG. 4 shows a chucking structure for preventing the floppy disk 4 from becoming rattled in the drive device 3 due to the smaller holding area of the floppy disk 4 due to the miniaturization of the device. In the figure, reference numeral 11 indicates a base disposed within the drive device 3, reference numeral 12 a floppy disk drive motor, reference numeral 13 a medium holding elevator, and reference numeral 14 a positioning hole formed in the floppy disk 4. Base 11 above
is formed into an L-shape with a rising wall 16 formed at one end edge of the horizontal portion 15, and a pressing member 18 biased forward by a compression spring 17 is held on the rising wall 16 so as to be able to move forward and backward. At the same time, a positioning pin 19 that matches the positioning hole 14 of the floppy disk 4 is provided upright on the horizontal portion 15 . Therefore, in this embodiment, when the floppy disk 4 is completely inserted, the medium holding elevator 13 is lowered, and the drive shaft 20 of the drive motor 12 is inserted into the transmission hole of the floppy disk 4 and positioned in the positioning hole 14. Pin 19 is inserted. In this state, the pressing member 18
Since this presses the edge of the medium access window of the floppy disk 4, the floppy disk 4 becomes sandwiched between the pressing member 18 and the positioning bin 19.
Graduation, etc. is completely prevented. In this explanation, a structure for preventing the floppy disk 4 from shifting in the front-back direction has been described, but if a well-known lateral displacement mechanism is added to this structure, it is possible to completely prevent the floppy disk 4 from wobbling. be able to. Furthermore, the present invention is not limited to the 3 or 5 inch size floppy disks cited as examples, but can of course be applied to disks of smaller sizes. (Effects of the Invention) As is clear from the above description, according to the method for identifying medium attributes of a floppy disk according to the present invention, there is no need to form a disk drive device to a size that can completely accommodate a floppy disk. Therefore, the drive device can be made smaller.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an embodiment of the present invention, in which (a) is a diagram showing the display section identification procedure, (b) is a diagram showing the medium access procedure, and FIG. 2 is a diagram showing the insertion state of the floppy disk. (a) is a diagram showing a state in which the medium is inserted from the medium access window side, (b) is a diagram showing a state in which it is inserted from the display section side, and FIG. 3 is a diagram for identifying the display section. 4 is a diagram showing the structure, (a) is a plan view, (b) is a side view, and FIG. (b) is a diagram showing a state in which a floppy disk is fixed, and FIG. 5 is a diagram showing a floppy disk. In the figure, 1 is a medium access window, 2 is a medium attribute display section, 3 is a disk drive device, and 4 is a floppy disk.

Claims (1)

[Claims] The disk drive device (3) identifies the medium attribute display section (2) formed near the edge of the medium protection case opposite to the edge where the medium access window (1) is formed. In the method for identifying medium attributes of a floppy disk, before inserting the floppy disk (4) into the disk drive device (3) from the medium access window (1) side and using it, the floppy disk (4) is inserted into the display section ( 2) side into the disk drive device (3) and display the display section (2).
) is read and stored by a reading device installed in the drive device (3).