JPH04103343U - floppy disc device - Google Patents

Abstract

(57) [Summary] [Structure] The optical sensor 11 detects the index hole 21 when the medium 20 is inserted normally. The optical sensor 12 detects an index hole 22 when the medium 20 is inserted upside down. When the optical sensor 11 detects the index hole 21, the motor control unit 13
Rotate the drive motor 14 in the normal direction. Furthermore, when the optical sensor 12 detects the index hole 22,
The drive motor 14 is rotated in the opposite direction. [Effect] Even if a medium is inserted upside down by mistake, there is no need to reinsert it, and data on the medium can be prevented from being destroyed.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a floppy disk device.

0002

[Conventional technology]

The media used in floppy disk drives have locations for writing and reading data. A hole (index hole) is drilled for detection.

0003 Traditional floppy disk drives have optical sensors located at the index holes of the medium. is provided so that when the media is inserted into the device and rotated, the index hole A light sensor detects light passing through the media, indicating that the media has been inserted successfully. After confirming this, data write/read processing is performed.

0004

[Problem that the idea aims to solve]

In the conventional floppy disk device mentioned above, if the medium is inserted upside down, the data will be lost. Data write/read processing is not executed. Therefore, check the front and back sides of the media before inserting it into the device. If you accidentally insert it upside down, you will have to reinsert it. It is always a hassle. Furthermore, if the media is inserted backwards, the device may be damaged due to circuit failure, etc. If the data write process is executed, the index hole position may not be detected. This poses a problem in that the data on the medium is destroyed.

[0005] The purpose of this invention is to perform data write/read processing even if the media is inserted upside down. The objective is to provide a floppy disk device that can.

[0006]

[Means to solve the problem]

The floppy disk device of this invention has an index when the medium is inserted normally. a first optical sensor that detects a hole; and an image when the medium is inserted upside down. a second optical sensor that detects the optical hole; and a motor that rotationally drives the medium. and the motor according to the outputs of the first optical sensor and the second optical sensor. and a motor control section that controls the direction of rotation.

[0007]

【Example】

Next, the present invention will be explained with reference to the drawings.

[0008] FIG. 1 is a block diagram showing an embodiment of the present invention, in which an index host of a medium 20 is shown. Two optical sensors 11, 12 and light emitters 15, 16 are provided to detect the light. It is being The optical sensor 11 detects the index when the medium 20 is inserted normally. The hole 21 is detected, and the optical sensor 12 also detects the hole 21 when the medium 20 is inserted upside down. This is for detecting the index hole 22 of the Rotate the medium 20 The drive motor 14 rotates under the control of the motor control section 13.

[0009] Now, if the medium 20 is inserted normally, the optical sensor 11 will detect the index hole. 21 is detected. The motor control unit 13 is configured so that the optical sensor 11 detects the index hole. When detected, the drive motor 14 is controlled to rotate in the normal direction and the data is Write/read processing is executed.

0010 If the medium 20 is inserted upside down, the optical sensor 12 will be inserted into the index hole 2. 2 is detected. The motor control unit 13 detects the index hole when the optical sensor 12 detects the index hole. When this occurs, the drive motor 14 is controlled to rotate in the opposite direction and the data is written. A read process is executed.

[0011]

[Effect of the idea]

As explained above, the floppy disk device of the present invention allows the medium to be inserted normally. A first optical sensor detects an index hole when the media is inserted upside down. A second optical sensor is provided to detect index holes when the media is If the media is inserted in the opposite direction, the data is written by controlling the media to rotate in the opposite direction. By executing the read process, even if you accidentally insert the media upside down, the Since data can be read and written, there is no need to re-enter the data. This prevents the data on the media from being destroyed.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

[Explanation of symbols]

11,12 Optical sensor 13 Motor control section 14 Drive motor

Claims (1)

[Scope of utility model registration request] 1. A first optical sensor that detects an index hole when the medium is inserted normally; a second optical sensor that detects an index hole when the medium is inserted upside down; a motor that rotates the medium;
A floppy disk device comprising: a motor control section that controls a rotational direction of the motor according to outputs of the first optical sensor and the second optical sensor.