JPS63136380A - Cassette for information storage medium - Google Patents

Abstract

PURPOSE:To easily confirm the storage capacity or the remaining capacity of an information recording medium without using a recording/reproducing device and a display device by providing a capacity display section displaying the capacity or residual capacity stored in the information recording medium to a part of the cassette. CONSTITUTION:A cassette 5 stored with an optical disk 7 is set in the main body 3 of an optical disk device 1, the optical head 9 is moved in the radial direction of the optical disk 7 and light modulated by the information recorded by the optical head is radiated on the optical disk 7 to record the information. In this case, the capacity stored in the optical disk 7 or the remaining storage capacity of the optical disk 7 are calculated. The calculated value is sent to a describing section 13 via a control circuit 17 and the section 13 is driven by a driver 15 to be moved forward/backward/upper/lower directions. Then the section 13 is stopped to a position in matching with the capacity stored in the optical disk 7 or the remaining capacity to apply prescribed description and the capacity stored in the optical disk 7 or the remaining capacity is displayed on the capacity display section 11.

Description

Detailed Description of the Invention [Objective of the Invention J (Field of Industrial Application) The present invention provides a capacity display section in a part of a cassette that stores an information storage medium such as an optical disk in which information is stored. The present invention relates to a cassette of an information storage medium that allows checking the capacity stored in the medium or the remaining capacity.

(Prior Art) Conventionally, as an information storage medium capable of storing large-capacity information,
For example, optical discs are usually housed in cassettes.

Then, each cassette is inserted into, for example, an optical disk device as a recording/reproducing device, and a part of the optical disk is exposed in the device to optically record or reproduce information.

However, with such optical disks and optical disk devices, when new information is to be stored on the optical disk again using this optical disk device, etc., the storage capacity that is already stored on this optical disk or the capacity that can be further stored, that is, the remaining capacity, etc. , read from the management information area provided in advance on the optical disc, and read this from a separately provided CRT.
It was supposed to be displayed on a display device such as a display.

(Problems to be Solved by the Invention) As mentioned above, the used capacity or remaining capacity of a conventional information storage medium is determined by setting it in a recording/playback device and displaying it on the screen of a display device when using the information storage medium again. We are currently checking.

However, it is necessary to reset the information storage medium to the recording/playback device and read the used capacity or remaining capacity displayed on the screen of the display device. The operations up to displaying the image on the screen were extremely troublesome and troublesome.

The present invention was proposed in order to improve the above problem, and it is possible to easily check the capacity or remaining capacity stored on an information storage medium without using a recording/playback device or a display device for recording and playback. An object of the present invention is to provide a cassette for an information storage medium.

[Structure of the Invention (Means for Solving Problems)] In order to achieve the above object, the present invention provides a method in which information is stored in a part of a cassette containing an information recording medium in which information is stored. The cassette of the information storage medium is configured by providing a capacity display section for displaying the capacity or remaining capacity.

(Function) By employing the present invention, the capacity or remaining capacity stored in an information recording medium can be easily confirmed from the outside without using a recording/reproducing device or a display device.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings.

FIG. 1 shows a state in which a cassette 5 is inserted into a main body 3 of an optical disk device 1, which serves as a recording and reproducing device for recording and reproducing information. This cassette 5 houses an optical disc 7 as an information storage medium. This optical disk 7 has bits formed by irradiating light onto a substrate made of plastic or the like, information is formed, and an information forming layer is formed.

The optical disc device 1 is also provided with an optical head 9 for recording and reproducing information on the optical disc 7 at the lower side of the cassette 5 of the optical disc 7 inserted therein.

This optical head 9 is a well-known one that includes a semiconductor laser, a collimator lens, an objective lens, prisms, an objective lens driving device, a photodetector (all not shown), and the like. Through the semiconductor laser, collimator lens, prisms, and objective lens of this optical head 9,
Light is irradiated into the track grooves of the optical disc 7, and data is recorded in the form of, for example, a coded signal.

Further, when reproducing data, the information recorded on the information forming layer of the optical disc 7 is reproduced by irradiating a certain reproduction light onto the optical disc 7 and detecting the reflected light with a photodetector.

Furthermore, as shown in FIG. 1 and FIG. 2(A), a capacity display section 11 that displays the capacity or remaining capacity stored in the optical disk 7 is located near one end surface of the front left side of the cassette 5. is the provision. A writing section 13 for writing the capacity or remaining capacity stored on the optical disk 7 in the capacity display section 11 is provided in the main body 3 of the optical disk device 1 via a drive device 15 that drives the writing section 13. be. Note that the drive device [15 is connected to the control circuit 17.

Then, the cassette 5 containing the optical disc 7 is stored in the main body 3 of the optical disc device 1, and the optical head 9 is moved in the radial direction of the optical disc 7 to record data using the optical head. Information is recorded by irradiating the optical disc 7 with light modulated according to the information. At this time, the capacity stored on the optical disc 7 or the remaining storage capacity of the optical disc 7 is calculated. These methods can currently be calculated using various methods, and as a specific method, for example, the method for calculating the remaining storage capacity of a storage medium described in Japanese Patent Laid-Open No. 57-79578 can be used. , a detailed explanation thereof will be omitted here.

Now, the calculated value of the storage capacity or remaining storage capacity stored in the optical disc 7 is sent to the entry section 13 via the control circuit 17. The writing section 13 is driven by a drive device 15 controlled by a control circuit 17, thereby moving it, for example, in the front-rear direction and the up-down direction in FIG. Then, the entry unit 13 is stopped at a position that matches the capacity or remaining capacity stored on the optical disc 7, and a predetermined entry is made, and the capacity or remaining capacity stored on the optical disc 7 is displayed on the capacity display unit 11. state.

The display methods of the capacity display sections 11.11A and 11B are as shown in FIGS. 3A and 3B, for example. That is, in FIG. 3(A), the capacity or remaining capacity stored on the optical disk 7 is read from 0% to 100% in increments of 10%. For example, the capacity or remaining capacity stored on the optical disk 7 is 5.
When 0% is used, a scale is engraved from 0% to 50% as shown in <A) of FIG.

Furthermore, when 10% is used, a scale is engraved up to 60%. Also, FIG. 3(B) shows another embodiment in place of FIG. 3(A), in which holes are formed from 0% to 50%, for example, so that the capacity or remaining capacity stored on the optical disk 7 is can be easily and easily confirmed from the outside.

The capacity display section 11 may be provided near the left end of the front side surface of one side surface of the cassette 7 in FIG. 2B, as shown in FIG. 2(8). In addition, for an optical disc 7 that is capable of double-sided recording, that is, recording on both the A side and the 8th side, for example, in FIGS. It may be provided at a position symmetrical to the display unit 11 with the center of the optical disc 7 as the center, so that the capacity stored on both sides of the optical disc 7 or the remaining capacity can be displayed separately.

When recording text, etc. on this optical disc, that is, when using the optical disc as a document file, two or three levels of hierarchy are defined to create a file system and document management is performed. For example, one side of an optical disc is called a cabinet, and this cabinet contains eight binders (keys and binders).
Currently, a system is being put into practical use that allows the definition of lower-level classifications of Yabinet and manages the search, editing, etc. of documents.

For such optical discs, the cassette containing the optical disc is provided with a display section that displays the storage capacity or remaining storage capacity of the optical disc, making it easier to manage documents using a file system such as a cabinet or bytender. It is also very easy to do.

In other words, just by looking at the cassette of an optical disc, it is possible to judge whether a new binder can be defined for this optical disc, which leads to improved work efficiency when recording documents, etc. on the optical disc. .

Note that the present invention is not limited to the embodiments described above, and can be implemented in other embodiments by making appropriate changes.

[Effects of the Invention] As explained above, according to the present invention, a part of a cassette that houses an information storage medium in which information is stored has a capacity that displays the capacity or remaining capacity of the information storage medium. By providing the display section, it is possible to easily and easily check the capacity or remaining capacity stored in the information storage medium without using an optical disk device.

Since the capacity or remaining capacity stored on an information recording medium can be easily and easily confirmed, it is understood as a guideline for determining the amount of data that can be filled.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an optical disk device according to an embodiment of the present invention, and FIGS. 2A and 2B are perspective views showing an example of a cassette containing an optical disk. (A) and (B) of FIG. 3 are plan views showing an example of a volume display section.

Claims (3)

[Claims] (1) An information storage medium characterized in that a part of a cassette that houses an information storage medium on which information is stored is provided with a capacity display section that displays the capacity or remaining capacity of the information storage medium. cassette. (2) The cassette for an information storage medium according to claim 1, wherein the capacity display section is provided near one end of the front surface, back surface, or side surface of the cassette. (3) The capacity display section is provided with a hole or a scale display for displaying the capacity according to the capacity stored in the information storage medium or the remaining capacity. information storage medium cassette.