JPH07235110A - Recording and reproducing apparatus - Google Patents

Abstract

PURPOSE:To obtain a recording and reproducing apparatus in which whether a disk case is inserted normally or erroneously is judged on the basis of information which has sensed the surface and the rear surface of the disk case at the upper part and the lower part of an insertion port, in which the disk case is pulled into only when it is inserted normally, whose costs are low, whose breakdown is small and which prevents the disk case from being inserted erroneously and damaged. CONSTITUTION:The reflection factor of a shutter 19 and a decorative plate 18 for a disk case 1 to be inserted is different from that of the surface part of the case 1, and a control circuit 13 detects a change in output voltages of sensors 10a, 10b. On the basis of the order of the change, the circuit 13 judges the insertion situation of the case 1. When it judges that the case has been inserted normally, it drives a motor 12, and it turns a roller 16 via a pulley 14 and a gear 15. Consequently, the case 1 is pulled into the inside. Inversely, when the circuit 13 judges that the case 1 has been inserted erroneously such as that the upper part and the lower part are reversed or that the front part and the rear part are reversed, it does not drive the motor 12, and it informs a user of the effect. Thereby, it is possible to obtain the recording and reproducing apparatus which enhances an assembly property, whose costs are low, whose breakdown is small and which can prevent the case 1 from being inserted erroneously and damaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium.

[0002]

2. Description of the Related Art A conventional recording / reproducing apparatus using a disk case will be described below. 14A and 14B are perspective views of a conventional disk case for accommodating a disk-shaped recording medium, where FIG. 14A is a top view and FIG. 14B is a bottom view. FIG. 15 is a view showing a portion formed for the purpose of preventing the erroneous insertion of the disc case, and the radii of the rounded portions attached to the upper portion and the lower portion are different from each other.
FIG. 16 is a diagram showing an example of a conventional misinsertion preventing device using the above-mentioned disc case, FIG. 17 is a perspective view showing the configuration of the misinsertion preventing lever, and FIG. 18 shows the operation of the misinsertion preventing lever. It is the perspective view shown. In the figure, 1 is a disc case, 2 is a recording / reproducing device, 3 is an erroneous insertion prevention lever for preventing erroneous insertion of the disc case 1, 4 is a shaft which serves as a rotation center of the erroneous insertion prevention lever 3, 5
Is an E-shaped retaining ring for restricting the vertical movement of the erroneous insertion prevention lever 3, 6 is a torsion spring for urging the initial position of the erroneous insertion prevention lever 3, and 7 is the recording / reproducing apparatus 2.
, 8 is a groove for restricting the rotation of the erroneous insertion preventing lever 3, 9 is a rounded portion for preventing erroneous insertion, and 12 is a disk case for inserting and pushing the disc case 1 into the recording / reproducing apparatus 2. A motor, 14 is a pulley press-fitted into the motor 12, 15 is a gear meshed with the pulley 14, 16 is a gear 15
Roller 17 meshed with, switch 17; decorative plate 18;
9 is a shutter.

The conventional erroneous insertion prevention is constructed as described above, and the erroneous operation preventing lever 3 is always urged in the A direction along the groove 8 by the torsion spring 6. When a disc-shaped recording medium in a disc case 1 is inserted into the recording / reproducing device 2, if the disc is normally inserted, the erroneous insertion prevention lever 3 is arranged as shown in FIG.
After hitting the misinsertion preventing rounding portion 9 of the disc case 1 as shown in FIG. 8 (a), sliding on the misinsertion preventing rounding portion 9 causes the shaft 4 to rotate in the B direction around the rotation center. Then, the disc case 1 can be inserted into the recording / reproducing apparatus 2. The inserted disk case 1 hits the switch 17, and the signal from the switch 17 activates the motor 12. The motor 12 rotates the roller 16 via the pulley 14 and the gear 15 to guide the disc case 1 to a predetermined position. Next, in the case of incorrect insertion, the incorrect insertion prevention lever 3 is shown in FIG.
As shown in (b), it tries to rotate in the C direction by hitting the front surface of the disk case 1, but cannot rotate because it is locked by the groove 8. As a result, the disc case 1 cannot be inserted into the recording / reproducing apparatus 2 any more.

[0004]

Since the conventional erroneous insertion preventing device is constructed as described above, all of them are mechanically performed, and therefore the number of parts is large and it is difficult to assemble. In addition, the precision of each individual part is important, resulting in a high price. Further, the mis-insertion prevention lever directly contacts the disk case 1, which may cause damage.

The present invention has been made in order to solve such a problem, and an object thereof is to obtain a recording / reproducing apparatus which can reduce the number of parts, improve the assembling property, be inexpensive, have few failures, and prevent erroneous insertion. And It is another object of the present invention to provide a recording / reproducing device that informs a user of insertion information and disc information.

[0006]

According to a first aspect of the present invention, there is provided a recording / reproducing apparatus for recording / reproducing data on / from a disc-shaped recording medium using a disc case for accommodating the disc-shaped recording medium. In the device wrong insertion prevention device,
A means for sensing the upper and lower surfaces of the disc cases installed in the upper and lower parts of the disc case insertion opening, a means for determining whether or not the disc case insertion direction is proper based on the sensed information, and It is provided with a means for pulling in and pushing out.

Further, according to a second aspect of the present invention, a sensor is readable in an erroneous insertion prevention device of a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium. With a seal
When the seal is attached to the upper and lower surfaces of the disc case or the upper or lower surface of the disc case and inserted into the recording / reproducing apparatus, the seals installed on the upper and lower portions of the disc case insertion port or on the upper or lower portion are inserted. It is provided with a means for sensing, a means for judging whether or not the inserting direction of the disc case is proper based on the sensed information, and a means for pulling in and pushing out the disc case.

According to a third aspect of the present invention, the upper and lower surfaces are shown in an erroneous insertion prevention device of a recording / reproducing apparatus that writes and reproduces on a disk-shaped recording medium by using a disk case for accommodating the disk-shaped recording medium. A seal, a means for detecting the seal installed at the upper and lower parts of the disc case insertion port when the seal is attached to the upper and lower surfaces of the disc case, and inserted into the recording / reproducing apparatus; It is provided with means for judging whether or not the inserting direction of the disc case is proper based on the information, and means for pulling in and pushing out the disc case.

According to a fourth aspect of the present invention, in an erroneous insertion prevention device of a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium using a disc case for accommodating the disc-shaped recording medium, an upper surface or a lower surface is provided on an upper surface or a lower surface. And the information indicating the upper surface or the lower surface of the disc case installed above or below the disc case insertion opening when the disc case is inserted into the recording / reproducing apparatus. Means, means for judging whether or not the inserting direction of the disk case is proper based on the sensed information, and means for pulling in and pushing out the disk case.

According to a fifth aspect of the present invention, the disk case is pulled in and pushed out in an erroneous insertion prevention device of a recording / reproducing apparatus that writes and reproduces on the disk-shaped recording medium using the disk case for accommodating the disk-shaped recording medium. When you insert the disk case into the recording and reproducing device,
It is provided with means for notifying the user whether or not the insertion direction is proper.

According to a sixth aspect of the present invention, in an erroneous insertion prevention device of a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium, an upper surface or a lower surface, a genre, etc. A seal having information, and a means for sensing the seal installed on the upper or lower part of the disc case insertion port when the seal is attached to the upper or lower face of the disc case into the recording / reproducing apparatus. , A means for judging whether or not the inserting direction of the disc case is proper based on the detected information, a means for pulling in and pushing out the disc case, and an inserting direction when the disc case is inserted into the recording / reproducing apparatus. It is provided with means for informing the user of information such as whether it is appropriate and the genre.

[0012]

According to the first aspect of the invention, the recording / reproducing apparatus prevents erroneous insertion of the recording / reproducing apparatus for writing and reproducing on / from the disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium. In the device, when the disc case is inserted into the recording / reproducing device, the sensor detects the metal part of the disc case, and based on the detected information, it is determined whether or not the inserting direction of the disc case is proper.
If it is inserted properly, pull in the disc case.

Further, according to a second aspect of the present invention, a sensor is readable in an erroneous insertion preventive device of a recording / reproducing apparatus for writing and reproducing to / from a disc-shaped recording medium using a disc case for accommodating the disc-shaped recording medium. Affixing a sticker to the upper and lower surfaces of the disk case, or to the upper surface or the lower surface, and when the disk case is inserted into the recording / reproducing apparatus, the sensor detects the sticker stuck to the disk case, and the disk case is detected based on the detected information. It is judged whether the insertion direction is proper or not, and if the insertion is normal, the disk case is pulled in.

According to a third aspect of the present invention, in the erroneous insertion prevention device of the recording / reproducing apparatus for writing / reproducing to / from the disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium, Attach the stickers shown on the top and bottom of the disc case, and when the disc case is inserted into the recording / playback device, the sensor will detect the sticker attached to the disc case, and the information detected above will determine the proper insertion direction of the disc case. If it is properly inserted, the disk case is pulled in.

According to a fourth aspect of the present invention, there is provided an erroneous insertion prevention device for a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium using a disc case for accommodating the disc-shaped recording medium. When the disc case with the processing showing the upper or lower surface is inserted into the recording / playback device, the sensor detects the processing performed on the disc case, and whether the disc case insertion direction is proper or not based on the detected information. If it is properly inserted, pull in the disc case.

According to a fifth aspect of the present invention, a disc case is recorded in an erroneous insertion prevention device of a recording / reproducing apparatus for writing and reproducing to / from the disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium. The sensor detects the metal part of the disc case when it is inserted in the playback device, and the information detected above determines whether the disc case is inserted in the proper direction. Let us know. If it is inserted normally, the disk case is pulled in.

According to a sixth aspect of the present invention, there is provided an erroneous insertion prevention device for a recording / reproducing apparatus for writing / reproducing data on / from a disc-shaped recording medium using a disc case for accommodating the disc-shaped recording medium. When a disc case with a sticker that has information such as genre attached is inserted into the recording / playback device, the sensor detects the sticker attached to the disc case, and whether the disc case is inserted in the proper direction based on the detected information. Notify the user of information such as whether or not and genre. If it is inserted normally, the disk case is pulled in.

[0018]

【Example】

Example 1. First Embodiment FIG. 1 is a block diagram showing a control system of an erroneous insertion prevention device of a recording / reproducing device according to a first embodiment of the present invention.
In the figure, 10 is a sensor with a light emitting element that senses the orientation of the disk case. When the light emitting portion always emits light and the reflecting surface is present, the light emitted from the light emitting portion bounces off by the reflecting surface and is then received by the light receiving portion. And converted to voltage.
Reference numeral 11 is an input / output circuit for inputting / outputting information of the sensors 10a and 10b, and 13 is a control circuit for judging whether to drive the motor 12 based on the information input from the sensor 10. FIG. 2 is a simplified view of the erroneous insertion prevention device of the recording / reproducing apparatus according to the first embodiment of the present invention. FIG. 3 is a diagram showing a signal from the sensor input to the control system of the recording / reproducing apparatus according to the first embodiment of the present invention.

Next, the operation will be described. 1, 2,
In FIG. 3, the shutter 19 and the decorative plate 18 each have a reflectance different from that of the surface portion of the disk case 1.
For example, in the configuration of FIG. 2, the control circuit 13 determines the insertion direction of the disk case 1 by detecting the change in the output voltage of the sensor 10b after the change in the output voltage of the sensor 10a. When the disc case 1 is inserted into the recording / reproducing apparatus,
If the insertion is normal, the shutter 19 passes over the sensor 10a, and the decorative plate 18 later passes over the sensor 10b. If the above operation is performed and the insertion is normal, then FIG.
As shown in (a), the output voltage of the sensor 10a changes from the D level to the E level, and then the output voltage of the sensor 10b changes to the D level.
It will change from level to E level. The control circuit 13 monitors the change of this signal through the input / output circuit 11, and when it judges that the insertion is normal, it drives the motor 12. The motor 12 rotates a roller 16 via a pulley 14 and a gear 15 to draw the disk case 1 into the recording / reproducing apparatus 2 and guide it to a predetermined position. Next, when the disk case 1 is inserted upside down, as shown in FIG. 3B, the output voltage of the sensor 10b first changes from the D level to the E level, and then the output voltage of the sensor 10a changes from the D level to the E level. Changes to. The control circuit 13 determines that the signal is erroneous insertion based on this signal and does not drive the motor 12. Further, even when the disk case 1 is turned upside down, the result is as shown in FIG. 3C, and the control circuit 13 judges that it is erroneously inserted. That is, when the output voltage of the sensor 10a changes and the sensor 10b changes later, the control circuit 13 determines that the insertion is normal and drives the motor 12.

Example 2. In the above embodiment, a sensor is installed in the insertion slot to detect the reflected light from the metal portion of the disk case. In this embodiment, however, a reflective seal is provided on the upper surface and the lower surface of the disk case 1, or on the upper surface or the lower surface. By affixing, the erroneous insertion of the disc case 1 is prevented more reliably.

FIG. 4 shows an example in which the reflection seal of the recording / reproducing apparatus according to the second embodiment of the present invention is attached to the upper and lower surfaces of the disk case 1 or to predetermined positions on the upper surface or the lower surface. Is a top view, and (b) is a view showing a bottom surface, and 26 is a reflective seal. FIG. 5 is a diagram showing a signal from the sensor input to the control system of the recording / reproducing apparatus in Embodiment 2 of the present invention.

Next, the operation will be described. In FIGS. 4 and 5, the sensor 10a and the sensor 10b are installed at positions (not shown) where the information of each seal attached to a predetermined position of the disc case 1 can be read. When the disc case 1 to which the reflection seal 26 is attached is inserted into the recording / reproducing apparatus 2, the reflection seal 26b attached to the upper surface passes over the sensor 10b if the insertion is normal, and then the reflection attached to the lower surface. The seal 26a is the sensor 1
Pass over 0a. In the above operation, as shown in FIG. 5A, the output voltage of the sensor 10b first changes from the D level to the E level, and then the output voltage of the sensor 10a changes from the D level to the E level. The change in this signal is controlled by the control circuit 1
3 is monitored via the input / output circuit 11 and is judged to be normal. Next, when the disk case 1 is inserted backwards and forwards, the reflective seals 26a and 26b are attached to the sensor 10
Since it does not pass over a and the sensor 10b, the output voltage becomes as shown in FIG. 5B, and the control circuit 13 determines that the insertion is wrong. Even when the disk case 1 is inserted upside down, the reflection seal 26a and the reflection seal 26b do not pass over the sensor 10a and the sensor 10b, so that the output voltage becomes as shown in FIG. Is determined to be an incorrect insertion.

Further, although the case where a plurality of seals are used has been described above, the reflection seal 26 is provided in the disk case 1.
When only one is attached to the upper surface or the lower surface of the disc, the disc case 1 to which the seal 26 is attached is attached to the recording / reproducing device 2 including the sensor 10 arranged at the position corresponding to the reflection seal 26. When inserted correctly, the output voltage of the corresponding sensor 10 changes as shown in FIG. 5 (d) if the insertion is normal, and the output of the corresponding sensor 10 as shown in FIG. 5 (e) if the insertion is incorrect. The voltage does not change. That is, it is possible to detect even if only one reflective seal 26 is used.

Example 3. 6A and 6B show an example in which a seal having the meaning of the upper surface and the lower surface of the recording / reproducing apparatus according to the third embodiment of the present invention is attached to a predetermined place of the disk case 1, where FIG. 6A is the upper surface and FIG. The bottom surface is shown. In the figure, 23 is an upper surface seal and 24 is a lower surface seal. Figure 7
FIG. 8 is a diagram showing a signal from a sensor input to a control system of the recording / reproducing apparatus 2 in Example 3 of the present invention.

Next, the operation will be described. In FIG. 6 and FIG. 7, the sensor 10 a and the sensor 10 b are lower surface seals 24 attached to predetermined positions of the disk case 1.
It is also installed at a position where the information on the upper surface seal 23 can be read (not shown). When the disk case 1 to which the upper surface seal 23 and the lower surface seal 24 are attached is inserted into the recording / reproducing apparatus 2, the lower surface seal 24 will be the sensor 10 if the disk case 1 is normally inserted.
a, and at the same time, the upper surface seal 23 is the sensor 10b.
Pass over. The upper surface seal 23 and the lower surface seal 24 are printed on the surfaces of the seals with different reflectances. For example, as shown in FIGS. 6A and 6B, by printing one or a plurality of bars, the upper surface and the lower surface can be printed. It has meaning. The above operation has an output waveform as shown in FIG. This output waveform is input to the control circuit 13 via the input / output circuit 11, and it is determined whether or not the output waveform is normal by the combination of the output waveforms of the sensor 10a and the sensor 10b.

Example 4. In the third embodiment described above, a seal having the meaning of the upper surface or the lower surface is attached to the disk case 1 and used, but in the present embodiment, the processing having the meaning of the upper surface or the lower surface which can be read by the sensor is provided on the disk case 1. By performing the above, the same operation as that of the third embodiment can be expected.

FIG. 8 is a perspective view showing an example of the disk case 1 according to the fourth embodiment of the present invention.
Is an uneven portion provided to prevent erroneous insertion. FIG. 9 is a diagram showing the operation of the sensor 10 according to the fourth embodiment of the present invention, in which 28 is a convex portion and 29 is a concave portion.

Next, the operation will be described. 8 and 9, the disc case 1 is provided with an uneven portion 27 at a predetermined position for the purpose of preventing erroneous insertion. The sensor 10 is installed at a position where information on the uneven portion 27 of the disk case 1 can be read (not shown). The concavo-convex portion 27 has a shape in which a groove is cut on the disc case 1, and as shown in FIG.
When 0 passes over the uneven portion 27, the light emitted from the sensor 10 is reflected by the convex portion 28 and bounces back (a), but does not bounce in the concave portion (b). From this, the sensor 1
The output waveform of 0 repeats the D and E levels as shown in FIG. 3 for the number of grooves (not shown). By cutting a plurality of grooves as shown in FIG. I understand it. When the disc case 1 is inserted into the recording / reproducing apparatus 2, the concave / convex portion 27 will be the sensor 1 if the disc case 1 is normally inserted.
Pass over 0. The control circuit 13 inputs this output waveform through the input / output circuit 11 and determines that it is normal (not shown).

Example 5. In the above-described embodiments, if the user cannot insert the disc case 1 into the recording / reproducing apparatus 2 but cannot insert it, the reason is difficult to understand. In this embodiment, a means for visually informing the user is provided by using a liquid crystal, an LED or the like.

FIG. 10 is a block diagram showing a control system of an erroneous insertion prevention device of a recording / reproducing apparatus in Embodiment 5 of the present invention. In the figure, 20 is a display unit for displaying an error, 2
Reference numeral 1 is a storage device that stores characters displayed on the display unit.
FIG. 11 is a perspective view of a recording / reproducing apparatus in Embodiment 5 of the present invention. In the figure, reference numeral 22 is an LED for notifying a user of an error.

Next, the operation will be described. 10 and 1
11, when the control circuit 13 receives a signal from the sensor and determines that the insertion is incorrect, the character information is read from the storage device 21 and displayed on the display unit 20 via the input / output circuit 11.
The error information as shown in (a) is displayed. The information displayed does not disappear unless the disc case 1 is removed from the recording / reproducing device 2. If the insertion is normal, the display unit 2
0 shows nothing. Alternatively, information indicating that it is normal may be displayed. Moreover, you may make LED22 light-emit like FIG.11 (b).

Alternatively, a buzzer or the like may be used to give an audible notification.

Example 6. FIG. 12 is a diagram showing an example in which a sticker having information such as the meaning and genre of the upper surface of the recording / reproducing apparatus according to the sixth embodiment of the present invention is attached to the disc case 1, and 25 is the meaning and genre of the upper surface. It is a top surface information sticker that holds the information of. FIG. 13 is a perspective view of a recording / reproducing apparatus in Embodiment 6 of the present invention.

Next, the operation will be described. 12 and 1
3, when the disk case 1 is inserted into the recording / reproducing apparatus, the upper surface information sticker 25 passes over the sensor 10 (not shown) if the disk case 1 is normally inserted. The upper surface information sticker 25 is printed with a reflectance different from that of the sticker surface. For example, by printing a plurality of bars as shown in FIG. 12, information such as the meaning and genre of the upper surface is provided. When the control circuit 13 receives the signal from the sensor 10 and determines that the insertion is normal, the character information indicated by the bar code is read from the storage device 21 and the information is displayed on the display unit 20 via the input / output circuit 11 as shown in FIG. Let out.

[0035]

According to the present invention, there is provided a recording / reproducing apparatus according to claim 1.
According to the above, in an erroneous insertion prevention device of a recording / reproducing apparatus that writes and reproduces on / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium, the disc-recording medium is installed at an upper portion and a lower portion in a disc case insertion port. Since it has means for sensing the upper and lower surfaces of the disc case, means for judging whether the disc case is inserted in the proper direction based on the sensed information, and means for retracting and pushing out the disc case, It is easy to assemble and can be realized at low cost because the precision of the parts is not important. Also,
Since the direction of the disk case can be seen without contact, there is no risk of damage.

According to a second aspect of the present invention, in the erroneous insertion prevention device of the recording / reproducing apparatus for writing / reproducing on / from the disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium, When inserting into the recording / reproducing device with a sensor-readable sticker attached on the top and bottom surfaces, or the top or bottom surface, insert the above-mentioned seals on the top and bottom of the disc case insertion opening or on the top or bottom. A means of sensing,
Since a means for judging whether or not the inserting direction of the disc case is proper based on the sensed information and a means for pulling in and pushing out the disc case are provided, it is possible to more surely prevent the erroneous insertion of the disc case. become able to.

According to a third aspect of the present invention, there is provided an erroneous insertion prevention device for a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium. A means for detecting the above-mentioned seals installed in the upper and lower parts of the disk case insertion port when inserting into the recording / reproducing apparatus with the seals indicating the upper and lower surfaces attached to the upper and lower surfaces, and the detected information. Since it has a means to judge whether the disc case is inserted in the proper direction and a means to pull in and push out the disc case, the sensor input signal can be discriminated more accurately and the disc case can be securely inserted correctly. You will be able to prevent it.

According to a fourth aspect of the present invention, there is provided an erroneous insertion prevention device for a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium. A means for sensing information indicating the upper surface or the lower surface of the disk case installed at the upper part and the lower part in the disk case insertion slot when inserting the disk case, which is processed to show the upper surface or the lower surface, into the recording / reproducing apparatus. And a means for judging whether or not the disc case is inserted in the proper direction based on the sensed information and a means for pulling in and pushing out the disc case, so that the disc case can be surely prevented from being erroneously inserted. Will be able to.

According to a fifth aspect of the present invention, in the erroneous insertion prevention device of the recording / reproducing apparatus for writing and reproducing to / from the disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium, Since the device is provided with means for notifying the user whether or not the inserting direction is proper when the device is inserted into the recording / reproducing apparatus, the user can intuitively know the direction of the disc case.

According to a sixth aspect of the present invention, there is provided an erroneous insertion preventing device for a recording / reproducing apparatus for writing / reproducing on / from a disc-shaped recording medium by using the disc case for accommodating the disc-shaped recording medium. A means for sensing the above-mentioned sticker installed in the upper or lower part of the disc case insertion hole when inserting it into the recording / reproducing apparatus with the sticker having the upper or lower surface and the information such as genre attached to the upper or lower surface. , A means for judging whether or not the inserting direction of the disc case is proper based on the detected information, a means for pulling in and pushing out the disc case, and an inserting direction when the disc case is inserted into the recording / reproducing apparatus. It is equipped with a means to inform the user of information such as whether or not it is appropriate and the genre, so that the user can quickly display the information. Information so that can be seen.

[Brief description of drawings]

FIG. 1 is a block diagram showing a control system of an erroneous insertion prevention device of a disk-shaped recording medium recording / reproducing device according to a first embodiment of the present invention.

FIG. 2 is a simplified diagram of an erroneous insertion prevention device of the recording / reproducing device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a signal from a sensor input to a control system of the recording / reproducing apparatus in Embodiment 1 of the present invention.

FIG. 4 is a diagram showing an example in which a reflective seal of a recording / reproducing apparatus according to a second embodiment of the present invention is attached to a disc case 1.

FIG. 5 is a diagram showing a signal from a sensor input to a control system of a recording / reproducing apparatus according to a second embodiment of the present invention.

FIG. 6 is a diagram showing an example in which a seal having a meaning of an upper surface and a lower surface of a recording / reproducing apparatus according to a third embodiment of the present invention is attached to a disc case 1.

FIG. 7 is a diagram showing a signal from a sensor input to a control system of a recording / reproducing apparatus according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing an example of a disk case according to a fourth embodiment of the invention.

FIG. 9 is a diagram showing an operation of the sensor 10 according to the fourth embodiment of the present invention.

FIG. 10 is a block diagram showing a control system of an erroneous insertion prevention device of a recording / reproducing device in Embodiment 5 of the present invention.

FIG. 11 is a perspective view of a recording / reproducing apparatus according to a fifth embodiment of the present invention.

FIG. 12 is a diagram showing an example in which a sticker having information such as upper and lower meanings and genres of a recording / reproducing apparatus in Embodiment 6 of the present invention is attached to a disc case 1.

FIG. 13 is a perspective view of a recording / reproducing apparatus in Embodiment 6 of the present invention.

FIG. 14 is a front view of a conventional disc case for accommodating a disc-shaped recording medium.

FIG. 15 is a view showing a portion formed for the purpose of preventing erroneous insertion of the disc case.

FIG. 16 is a diagram showing an example of a conventional erroneous insertion prevention device using a disc case.

FIG. 17 is a perspective view showing a configuration of a conventional incorrect insertion prevention lever.

FIG. 18 is a perspective view showing the operation of a conventional incorrect insertion prevention lever.

[Explanation of symbols]

 1 Disk Case 2 Recording / Reproducing Device 10 Light Emitting Element Sensor 11 Input / Output Circuit 12 Motor 13 Control Circuit 18 Decorative Plate 19 Shutter 20 Display 21 Memory Device 22 LED 23 Top Seal 24 Bottom Seal 25 Top Information Sticker 26 Reflective Sticker 27 Unevenness

Claims (6)

[Claims] 1. An erroneous insertion prevention device for a recording / reproducing apparatus for writing and reproducing data on and from a disc-shaped recording medium using a disc case for accommodating the disc-shaped recording medium. A means for detecting the upper surface and the lower surface of the disc case, a means for judging whether or not the inserting direction of the disc case is proper based on the sensed information, and a means for pulling in and pushing out the disc case. Recording / reproducing apparatus characterized by. 2. A sticker readable by a sensor and the above-mentioned sticker in an erroneous insertion prevention device of a recording / reproducing apparatus for writing and reproducing to / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium. Means for detecting the upper and lower parts of the disc case insertion port or the above-mentioned seals installed on the upper or lower part of the disc case when the disc is attached to the upper and lower faces of the disc case or the upper or lower face of the disc case. And a means for judging whether or not the disc case is properly inserted based on the detected information, and a means for pulling in and pushing out the disc case. 3. An erroneous insertion prevention device of a recording / reproducing apparatus for writing and reproducing to / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium, and a seal showing upper and lower surfaces, and the seal. When the disc is attached to the upper surface and the lower surface of the disc case and inserted into the recording / reproducing apparatus, means for sensing the seals installed at the upper and lower portions of the disc case insertion port, and the disc case based on the sensed information. A recording / reproducing apparatus comprising means for determining whether or not the insertion direction of the disk is proper, and means for retracting and pushing out the disk case. 4. An erroneous insertion prevention device of a recording / reproducing apparatus for writing and reproducing to / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium, wherein the upper surface or the lower surface shows the upper surface or the lower surface. And a means for sensing information indicating an upper surface and a lower surface of the disk case installed at an upper part or a lower part of the disk case insertion port when the disk case is inserted into a recording / reproducing apparatus, A recording / reproducing apparatus comprising: a means for judging whether or not the inserting direction of the disc case is proper based on the sensed information; and a means for pulling in and pushing out the disc case. 5. An erroneous insertion prevention device of a recording / reproducing apparatus for writing / reproducing to / from a disk-shaped recording medium by using the disk case for accommodating the disk-shaped recording medium, wherein the disk case is inserted into the recording / reproducing apparatus. The recording / reproducing apparatus further comprises means for notifying the user whether or not the insertion direction is proper. 6. An erroneous insertion prevention device of a recording / reproducing device for writing and reproducing to / from a disc-shaped recording medium by using a disc case for accommodating the disc-shaped recording medium, which has information such as an upper surface or a lower surface and a genre. A seal, a means for detecting the seal installed on the upper or lower part of the disc case insertion port when the seal is attached to the upper or lower surface of the disc case, and inserted into the recording / reproducing apparatus; Means for judging whether or not the inserting direction of the disc case is proper based on the information, means for pulling in and pushing out the disc case, and proper inserting direction when the disc case is inserted into the recording / reproducing apparatus. A recording / reproducing apparatus comprising means for notifying a user of information such as whether or not and genre.