WO2007083737A1

WO2007083737A1 - Information recording medium load/eject control device, information recording medium load/eject control method, information recording medium load/eject control program and recording medium with information recording medium load/eject control program recorded thereon

Info

Publication number: WO2007083737A1
Application number: PCT/JP2007/050776
Authority: WO
Inventors: Takaaki Ujiie
Original assignee: Pioneer Corporation
Priority date: 2006-01-20
Filing date: 2007-01-19
Publication date: 2007-07-26
Also published as: JP2009087381A

Abstract

Provided are an information recording medium load/eject control device which makes the loading/ejecting speed of a disc variable and shortens a time required for loading and ejecting the disc, an information recording medium load/eject control method, an information recording medium load/eject control program and a recording medium with an information recording medium load/eject control program recorded therein. The information recording medium load/eject control device is provided with a plurality of sensors, a microcomputer section for detecting the sensor status, and a DA converting section and a driver section for applying a voltage to a motor section based on an instruction from the microcomputer section. The microcomputer section recognizes the positional relationship between the information recording medium load/eject control device and an optical disc by the output status of the sensors, and a voltage to be applied to the motor section is controlled by the microcomputer section in accordance with the output status of the sensors.

Description

Specification

Information recording medium insertion / ejection control device, information recording medium insertion / ejection control method, information recording medium insertion / ejection control program, and recording medium recording information recording medium insertion / ejection control program

Technical field

The present application relates to the field of information recording medium insertion / ejection control devices.

Background art

[0002] Conventionally, among information recording medium insertion / ejection control devices, one disclosed in Patent Document 1 is known as a slot reproducing method disk reproducing device.

[0003] A powerful disc player is a disc player that plays back information recorded on a disc. The disc player is provided at a disc insertion slot. The contact portion abuts on the peripheral edge of the disc, and the corresponding portions are separated from each other. The left and right slide levers that move in the direction, the urging means that applies elastic force to the slide lever in the direction in which the abutment portion approaches, and the output state changes depending on the movement position of the left and right slide levers Two left and right sensors, and disc state determination means for determining the insertion state of the disc according to the output states of the left and right sensors.

[0004] That is, in the disc reproducing device disclosed in Patent Document 1, the output states of the two left and right sensors change according to the movement position of the left and right slide levers, and the two left and right sensors The disc insertion status is judged according to the output status.

Patent Document 1: Japanese Patent Laid-Open No. 2001-155401

Disclosure of the invention

Problems to be solved by the invention

[0005] However, in the case of the above-described apparatus, since the conveyance speed is constant until the completion of the conveyance of the disk, the disk insertion operation is started until the force is completed or the disk is ejected. It took some time to start and complete the force.

[0006] Therefore, the present application has been made in view of the above inconveniences, and an example of the problem is information that makes the disk insertion / ejection speed variable and reduces the time required for disk insertion / ejection. An object of the present invention is to provide a recording medium on which a recording medium insertion / ejection control device, an information recording medium insertion / ejection control method, an information recording medium insertion / ejection control program, and an information recording medium insertion / ejection control program are recorded.

Means for solving the problem

[0007] An information recording medium insertion / ejection control device according to claim 1 of the present invention conveys the information recording medium between an insertion / ejection port into which the information recording medium is inserted and ejected and an information recording medium reproduction position. A conveying means; a position detecting means for detecting the position of the information recording medium at the time of conveying the information recording medium; and a conveying speed of the information recording medium detected by the position detecting means. And / or a control means for changing the speed to at least two speeds based on the position.

[0008] An information recording medium insertion / ejection control method according to claim 8 of the present invention conveys the information recording medium between an insertion / ejection port into which the information recording medium is inserted and ejected and an information recording medium reproduction position. A conveying step; a position detecting step for detecting a position of the information recording medium during conveyance of the information recording medium; and a conveying speed of the information recording medium detected in the position detecting step. And a control step of changing the speed to at least two speeds based on the position.

[0009] An information recording medium insertion / ejection control program according to claim 9 of the present invention provides a computer included in an information recording medium insertion / ejection control device, an insertion / ejection slot into which an information recording medium is inserted and ejected, and an information recording medium A transport unit that transports the information recording medium to and from a reproduction position; a position detection unit that detects a position of the information recording medium during transport of the information recording medium; and a transport speed of the information recording medium. It is made to function as a control means for changing to at least two speeds based on the position of the information recording medium detected by the means.

Brief Description of Drawings

FIG. 1 is a block diagram showing a schematic configuration example of a disk reproducing device according to an embodiment.

FIG. 2 is a diagram showing a schematic configuration of a main part of a disc reproducing device RS provided with the information recording medium insertion / ejection control device S of the embodiment, where (a) is a plan view, (b) is a view as viewed from the arrow K; c) is an L-to-L cross-sectional view. FIG. 3 is a state diagram showing a positional relationship between the position of the information recording medium of the embodiment and position detecting means.

FIG. 4 is a state diagram showing the positional relationship between the position of the information recording medium of the embodiment and position detecting means.

FIG. 5 is a diagram showing the relationship between the position of the information recording medium in FIGS. 3 and 4 and the output state of the position detecting means.

FIG. 6 is a diagram showing the relationship between the position of the information recording medium according to the embodiment and the voltage applied to the motor.

FIG. 7 is a flowchart showing the operation of the information recording medium insertion / ejection control apparatus according to the embodiment when the information recording medium is inserted.

FIG. 8 is a flowchart showing the operation of the information recording medium insertion / ejection control apparatus according to the embodiment when the information recording medium is ejected.

Explanation of symbols

[0011] 1 Disc insertion / ejection section 1

2 Driver section

3 DA converter

4 Microcomputer 咅

5 AD converter

6 Sensor section

7 Optical disc

12 Drive roller

BEST MODE FOR CARRYING OUT THE INVENTION

Next, an embodiment best suited for the present application will be described with reference to FIGS.

FIG. 1 is a block diagram showing an outline of the information recording medium insertion / ejection control device S according to the present embodiment. FIG. 2 is a diagram showing a schematic configuration of a main part of the disc reproducing device RS provided with the information recording medium insertion / ejection control device S of the present embodiment, (a) a plan view, (b) a view taken along the arrow K, (c) It is L1 L sectional drawing. 3 and 4 show the positional relationship between the position of the information recording medium and the position detecting means in the active state (the state in which the information recording medium is detected). It is a state diagram. FIG. 5 is a diagram showing the relationship between the position of the information recording medium in FIGS. 3 and 4 and the output state of the position detecting means. FIG. 6 is a diagram showing the relationship between the position of the information recording medium and the voltage applied to the conveying means. FIG. 7 is a flowchart showing the operation of the information recording medium insertion / ejection control device when the information recording medium is inserted. FIG. 8 is a flowchart showing the operation of the information recording medium insertion / ejection control device when the information recording medium is ejected.

First, an outline of the information recording medium insertion / ejection control device according to the present embodiment will be described based on FIG.

[0014] The information recording medium insertion / ejection control device according to the present embodiment includes a disk insertion / ejection unit 1 as a transport unit, a driver unit 2, a DA (Digital to Analog) conversion unit 3, and a microcomputer unit as a control unit. 4. An AD (Analog to Digital) conversion unit 5, a sensor unit 6 as position detection means, and a switch unit 20 as a disk insertion switch and a disk ejection switch are provided.

The disc insertion / ejection unit 1 includes a fixed guide 10, a driving roller 12, a DC motor (not shown), a driving force transmission mechanism (not shown), and the like! Speak.

[0016] When the optical disc 7 as the information recording medium is inserted by the user in the disc insertion direction of the disc insertion / ejection unit 1, the sensor unit 6 detects the presence of the optical disc 7, and the disc insertion / ejection unit 1 draws the optical disc 7 inside the disc insertion / ejection unit 1 and fixes it to the disc rotation unit 16.

[0017] When the optical disc 7 is ejected, the disc insertion / ejection unit 1 moves the optical disc fixed to the disc rotation unit 16 to the outside of the disc insertion / ejection unit 1, and the user can take out the optical disc 7. Drain to the position.

The details of the disc insertion / ejection unit 1 will be described with reference to FIG.

The driver unit 2 applies an appropriate voltage to a DC motor (not shown) that moves the optical disc 7 provided in the disc insertion / ejection unit 1 based on the information output from the DA conversion unit 3. To do. When the voltage applied to the direct current motor is large, the rotational speed of the direct current motor increases, so that the optical disc 7 moves at a high speed. When the voltage applied to the DC motor is small, the rotational speed of the DC motor is slow, so the optical disc 7 is slow. Moving.

[0020] Further, when the polarity of the voltage applied to the DC motor changes, the rotation direction of the DC motor changes. By changing the polarity of the voltage applied to the DC motor, the optical disk can be inserted and ejected with a single DC motor.

The DA converter 3 converts the digital data input from the microcomputer unit 4 into analog data and outputs an analog voltage to the driver unit 2.

The driver unit 2 outputs a voltage for driving the DC motor provided in the disk insertion / ejection unit 1 to the DC motor based on the analog voltage input from the DA converter unit.

[0023] The sensor unit 6 is also configured with a plurality of sensor forces. There are two types of sensors: optical sensor S and mechanical sensor KS.

One optical sensor S includes a light emitting element HS such as a light emitting diode that emits light and a light receiving element JS such as a light receiving transistor that receives light emitted from the light emitting element H S. When the optical disc 7 is present between the light emitting element HS and the light receiving element JS, the light emitted from the light emitting element H S does not reach the light receiving element JS. In this case, since the optical sensor S detects the optical disk 7, the output of the light receiving element is in an active state (HIGH state). When the optical disc 7 does not exist between the light emitting element HS and the light receiving element JS, the light emitted from the light emitting element HS reaches the light receiving element JS. In this case, since the optical sensor S does not detect the optical disc 7, the output of the light receiving element is in an inactive state (LOW state).

[0025] The number of optical sensors S provided in the sensor unit 6 can be arbitrarily set, but in the present embodiment, five optical sensors and one mechanical sensor are used.

The mechanical sensor is a so-called clamp switch KS, and is a sensor that detects whether or not the optical disk 7 is fixed to the disk rotating portion 16. When the optical disk 7 is fixed to the disk rotating unit 16, the optical disk 7 is in an active state, and when the optical disk 7 is not fixed to the disk rotating unit 16, the optical disk 7 is in an inactive state.

The AD conversion unit 5 converts the analog data output from the sensor unit 6 into digital data, and outputs the digital data to the microcomputer unit 4. The value of the digital data output from the AD converter 5 is HIGH when the output of the optical sensor S and mechanical sensor KS is active, and is LOW when the output is inactive. The microcomputer unit 4 outputs the voltage applied to the DC motor to the DA conversion unit 3 as digital data based on the value of the digital data output from the AD conversion unit 5.

Specifically, in order to prevent the drive roller 12 from being rotated by being locked with a gear (not shown) that rotates the drive roller 12 after the optical disc 7 is fixed to the disc rotating unit 16. Then, the applied voltage to the DC motor is reduced so that the rotational speed of the drive roller 12 becomes slow. When the voltage applied to the DC motor is reduced, the rotational speed of the DC motor that rotates the drive roller 12 is reduced, so that the gear that rotates the drive roller 12 can be prevented from being locked.

[0030] If the optical disc 7 is pulled out of the disc reproducing device S by the user while the optical disc 7 is inserted into the disc insertion / ejection unit 1, the drive roller 12 and the drive roller In order that the rotating sound of gears and other mechanical parts rotating together with the noise does not exceed a predetermined sound, the applied voltage to the DC motor that rotates the drive roller 12 and the mechanical parts such as gears is adjusted. The voltage output from the microcomputer unit 4 is controlled so as to reduce the voltage.

[0031] Further, when the user's finger is inserted into the hole in the center portion of the optical disc while the optical disc 7 is being inserted into the disc insertion / ejection unit 1, the user's finger is inserted into the disc. Don't get stuck in the outlet of the discharge part 1! In order to avoid this problem, the voltage applied to the DC motor output from the microcomputer unit 4 is reduced.

[0032] The switch unit 20 includes a disk insertion switch and a disk discharge switch. When the user presses these switches, the micro computer unit 4 starts the transport operation of the optical disc 7.

Hereinafter, the main part of the information recording medium insertion / ejection control device will be described in more detail with reference to FIG.

[0034] FIG. 2 is a main part of an optical disc reproducing device RS provided with the information recording medium insertion / ejection control device S according to the present embodiment. (Omitted) etc.

[0035] The disc insertion / ejection unit 1 includes a fixed guide 10, a drive roller 12, a DC motor (not shown), And a driving force transmission mechanism (not shown)! Speak.

The fixed guide 10 is a guide portion of a transport unit that inserts or ejects the optical disc 7 by the rotation of the drive roller 12 in a state where the optical disc 7 is pinched with the drive roller 12. The fixed guide 10 has a rectangular plate shape and is provided with a gradient so as to increase in thickness from the substantially central portion in the directions on both the left and right sides of the figure (perpendicular to the insertion / ejection direction of the optical disc 7). A contact surface 11 with which the part contacts is formed. Further, a mounting hole for the sub-substrate 15 and a hole through which light emitted from the light emitting elements HS2, HS3, HS4, and HS5 passes are formed on the upper surface of the fixed guide 10. A resin material is used as the material of the fixed guide 10 and is formed by a molding force. The fixed guide 10 is configured above the insertion / ejection port 17 of the optical disc 7.

[0037] The drive roller 12 rotates with the fixed guide 10 sandwiching the optical disc 7, and conveys the optical disc 7 to a predetermined position. Drive roller 12 Rotated by DC motor and drive force transmission mechanism. The drive roller 12 includes a rotating shaft 13 and a rubber roller portion 14 formed on the outer periphery of the rotating shaft 13. The rubber roller portion 14 is formed with a tapered portion so that the diameter increases from the center toward both ends. Yes. Further, both ends of the rotating shaft 13 are held by bearings, and a gear for rotating the driving roller 12 is fixed to one end. The drive roller 12 is elastically held by a spring member (for example, a torsion spring or a tension coil spring, not shown) so as to be urged in the direction of the fixed guide 10. Moves in the direction of 7 and presses against the optical disc 7 by the inertia of the spring member. When the optical disc 7 is played, the optical disc 7 power is also separated by switching. In addition, the gear fixed to the rotating shaft 13 of the driving roller 12 is connected to a direct current motor and meshes with a driving force transmission mechanism that transmits the rotational force. Can be transported in the insertion direction or the ejection direction.

[0038] The sensor unit 6 also includes light emitting elements HS1, HS2, HS3, HS4, and HS5, light receiving elements JS1, JS2, JS3, JS4, and JS5, and a clamp switch KS. Light-emitting elements HS2, HS3, HS4, and HS5 are received on the sub-board 15 provided above the insertion / discharge passage of the optical disk 7, and received on the main board 19 provided on the lower direction of the insertion / discharge passage. Elements JS2, JS3, JS4, and JS5 are mounted at predetermined positions (four locations) so as to face each other.

[0039] Then, when the optical disc 7 passes through the insertion / ejection passage, the respective light emitted from the light emitting elements HS2, HS3, HS 4 and HS5 toward the light receiving elements JS2, JS3, JS4 and JS5 is blocked by the optical disc 7. As a result, it is determined at each position that there is an optical disk.

A pair of a light emitting element and a light receiving element are also provided in the vicinity of the disk rotating unit 16 where the optical disk 7 rotates.

Next, an insertion / ejection operation of the optical disc 7 will be described.

[0042] When the optical disc 7 is inserted from the insertion / ejection port 17, the light emitted from the light emitting elements HS3 and HS4 is shielded by the inserted optical disc 7, so that it is determined that there is an optical disc, and is pressed against the fixed guide 10. Then, the drive roller 12 for conveying the disk starts to rotate. When the optical disk 7 inserted in this state reaches the driving roller 12, it is sucked in by the rotation of the driving roller 12, and the optical disk 7 is conveyed toward the performance section (reproducing section). When the optical disk 7 reaches a predetermined position, a switch (not shown) is activated and the rotation of the drive roller 12 is stopped. At the same time as the rotation of the drive roller 12 stops, the disc clamper 18 descends to fix the optical disc 7 to the disc rotating portion 16. At the same time, the drive roller 12 is separated from the optical disc 7. When the drive roller 12 moves away from the optical disk 7, the disk rotating unit 16 rotates and information recorded on the optical disk 7 is reproduced or recorded. The optical disk 7 is carried on a disk tray (not shown) that does not block the optical path of the optical sensor.

In addition, when the eject switch (not shown) is pressed to take out the optical disc 7 from the performance section, the driving roller 12 moves in the direction of the optical disc 7 and the optical disc 7 is clamped by the fixed guide 10. At the same time, the disc clamper 18 moves away from the optical disc 7. In this state, the drive roller 12 rotates (in the opposite direction to that during insertion) and conveys the optical disc 7 toward the insertion / ejection port 17.

[0044] Then, when the optical disc 7 is conveyed to a predetermined position, the rotation of the drive roller 12 stops. In this state, the optical disk 7 can be taken out by hand.

Hereinafter, the position of the optical disc 7 and the output state of the sensor unit will be described with reference to FIGS. 3 to 6. Light up.

3 and 4 are diagrams showing the positional relationship between the optical disc 7 and each sensor of the sensor unit 6 and the output state of each sensor in the disc reproducing apparatus RS.

FIG. 3 (a) shows a state in which the optical disc 7 is mounted on the disc rotating unit 16 of the disc reproducing device RS (state A). In this case, the clamp switch KS and the optical sensor PS1 are in an active state (a state in which the optical switch 7 is recognized), and the output state of the clamp switch KS and the optical sensor PS1 is in the HIGH state.

FIG. 3 (b) shows a state in which the optical disk 7 is lifted from the disk rotating unit 16 of the disk reproducing device RS (state B). In this case, since the clamp switch KS is in an inactive state (the state where the optical disk 7 is mounted on the disk rotating unit 16), the output state of the clamp switch KS is the LOW state. On the other hand, since the optical sensor PS1 is in an active state (a state in which the presence of the optical disk 7 is recognized at the position of the optical sensor PS1!), The output state of the optical sensor PS1 is HIGH.

FIG. 3 (c) shows a state in which the optical disc 7 is being ejected from the disc reproducing device RS in the direction of arrow F1 (state C). The optical disk 7 is approaching the insertion / ejection port 17 of the disk playback device RS, and is between the light emitting element HS3 and the light receiving element JS3 related to the optical sensor PS3 and between the light emitting element HS4 and the light receiving element JS4 related to the optical sensor PS4. The optical disk 7 is in the state.

[0050] Therefore, since the light emitted from the light emitting element HS3 is shielded by the optical disc 7 and not received by the light receiving element JS 3, the optical sensor PS3 is in an active state (recognizes the presence of the optical disc 7 at the position of the optical sensor PS 3). The output status of the optical sensor PS3 is in the HIGH state.

[0051] Similarly, the light emitted from the light emitting element HS4 is blocked by the optical disk 7 and not received by the light receiving element JS4. Therefore, the optical sensor PS4 is in an active state (the presence of the optical disk 7 is recognized at the position of the optical sensor PS4). The output status of the optical sensor PS4 becomes HIGH.

[0052] FIG. 3 (d) shows a state (state D) in which the optical disc 7 is being ejected further in the direction of arrow F1 as well as the disc playback device RS force. Optical disc 7 is the insertion / ejection slot of disc playback device RS 17 is partially discharged, between the light emitting element HS2 and the light receiving element JS2 related to the optical sensor PS2, between the light emitting element HS3 and the light receiving element JS3 related to the optical sensor PS3, and the light emitting element HS4 related to the optical sensor PS4. And the light receiving element JS4, and the optical disk 7 is between the light emitting element HS5 and the light receiving element JS5 related to the optical sensor PS5.

[0053] Therefore, the light emitted from the light emitting element HS2 is blocked by the optical disk 7 and not received by the light receiving element JS 2. Therefore, the optical sensor PS2 is in an active state (recognizes the presence of the optical disk 7 at the position of the optical sensor PS 2). The output state of the optical sensor PS2 is in the HIGH state.

Similarly, the light emitted from the light emitting element HS5 is shielded by the optical disk 7 and not received by the light receiving element JS5, so that the optical sensor PS 5 is in an active state (the presence of the optical disk 7 is recognized at the position of the optical sensor PS 5). The output status of the optical sensor PS5 becomes HIGH.

Note that the optical sensor PS3 and the optical sensor PS4 continue to recognize the presence of the optical disk 7 (the optical disk 7 exists between the light emitting element and the light receiving element). The output state of sensor PS3 and optical sensor PS4 is HIGH.

[0056] Fig. 4 (a) shows a state in which the optical disc 7 is being further ejected from the disc reproducing device RS in the direction of arrow F1 (state E). The optical disk 7 deviates from the position of the optical sensor PS1 in the disk rotating unit 16 of the disk reproducing device RS. That is, since the optical disk 7 does not exist between the light emitting element HS1 and the light receiving element JS1 related to the optical sensor PS1, the output state of the optical sensor PS1 changes to the LOW state.

Note that the optical sensors PS2, PS3, PS4, and PS5 continue to recognize the presence of the optical disc 7 (the optical disc 7 is present between the light emitting element and the light receiving element). The output state of the optical sensors PS2, PS3, PS4 and PS5 is HIGH.

FIG. 4 (b) shows a state (state F) in which the optical disc 7 is being ejected further in the direction of the arrow F1, the disc playback device RS force. One end of the optical disc 7 is inside the disc playback device RS, and the optical sensors PS3 and PS4 continue to recognize the presence of the optical disc 7 (the optical disc 7 is present between the light emitting element and the light receiving element). Therefore, the output status of the optical sensors PS3 and PS4 is HIGH. [0059] On the other hand, the optical sensors PS2 and S5 change to a state in which the presence of the optical disc 7 is not recognized (the optical disc 7 is not present between the light emitting element and the light receiving element). The output state of PS2 and S5 changes to the LOW state.

[0060] FIG. 4 (c) shows a state (state G) in which the optical disk 7 is ejected from the disk reproducing device RS. Since all the sensors of the sensor unit 6 in the disk reproducing device RS cannot recognize the position of the optical disk 7, all output states of the clamp switch KS and the optical sensors PS1 to S5 are in the LOW state.

[0061] As described above, the relationship between the position of the optical disc 7 and the output state of each sensor provided in the sensor unit 6 when the optical disc 7 is ejected from the disc reproducing device RS has been described. However, the same applies when the optical disc 7 is inserted into the disc playback device RS.

That is, when the optical disc 7 is inserted into the disc reproducing device RS, the state changes from the state G in FIG. 4 (C) to the state A in FIG. 3 (A).

[0063] FIG. 5 is a state change diagram showing the states (states A to G) described with reference to FIGS. 3 and 4, and changes in output states of the clamp switch KS and the optical sensors PS1 to S5. is there.

[0064] State A is a state in which the optical disc 7 is mounted on the disc rotating unit 16 in the disc reproducing device RS and information recorded on the optical disc 7 can be read. Therefore, the clamp switch KS is in the HIGH state, which is the active state. Further, since the optical disk 7 exists at the position of the optical sensor PS1, the output of the optical sensor PS1 is also in the HIGH state, which is the active state. FIG. 4 is a state diagram corresponding to FIG.

[0065] In state B, the optical disc 7 is in a state of being removed from the disc rotating unit 16 in the disc reproducing device RS, so the clamp switch KS is inactive and is in the LOW state. FIG. 6 is a state diagram corresponding to FIG.

State C is a state in which one end of the optical disc 7 is positioned in the vicinity of the insertion / ejection port 17. There is an optical disk 7 between the light emitting element HS3 and the light receiving element JS3 related to the optical sensor PS3 and between the light emitting element HS4 and the light receiving element JS4 related to the optical sensor PS4. Therefore, the outputs of the photosensors PS3 and PS4 are in the active state, HIGH state. Figure 3 is a state diagram corresponding to (c).

[0067] State D is a state in which the one end force insertion / exhaust port 17 of the optical disc 7 is out of the disc reproducing device RS. Between the light emitting element HS2 and the light receiving element JS2 related to the optical sensor PS2, between the light emitting element HS3 and the light receiving element JS3 related to the optical sensor PS3, between the light emitting element HS4 and the light receiving element JS4 related to the optical sensor PS4, and the optical sensor. There is an optical disk 7 between the light emitting element HS5 related to PS5 and the light receiving element JS5.

Accordingly, the outputs of the optical sensors PS2, PS3, PS4, and PS5 are in the active state, ie, the HIGH state. The output of photosensor PS1 is also in the HIGH state, which is the active state. FIG. 4 is a state diagram corresponding to FIG.

[0069] State E is a diagram showing a state where the position of the optical disc 7 is shifted from the position corresponding to the optical sensor PS1 from the position of the optical disc 7 in the state D. This shows a state where the optical disk 7 no longer exists between the light emitting element HS2 and the light receiving element JS2 related to the optical sensor PS1. Therefore, the output of optical sensor PS1 is in the LOW state, which is the inactive state. FIG. 5 is a state diagram corresponding to FIG.

[0070] In state F, one end of the optical disc 7 is inside the disc reproducing device RS, and the optical sensors PS3 and PS4 continue to recognize the presence of the optical disc 7 (between the light emitting element and the light receiving element). Therefore, the output status of the optical sensors PS3 and PS4 is HIGH. Other sensor outputs are inactive and in LOW state. FIG. 5 is a state diagram corresponding to FIG.

The state G shows a state where the optical disk 7 is ejected from the disk reproducing device RS. Since all the sensors of the sensor unit 6 in the disk reproducing apparatus RS cannot recognize the position of the optical disk 7, all output states of the clamp switch KS and the optical sensors PS1 to PS5 are in the LOW state. FIG. 5 is a state diagram corresponding to FIG.

FIG. 6 is a diagram showing the voltage applied to the DC motor that rotates the drive roller 12 for each state indicating the position of the optical disk. The voltage applied to the DC motor is controlled by the value output from the microcomputer unit 4 to the DA converter unit 3.

[0073] FIG. 6 (a) shows the voltage applied to the DC motor when the optical disk 7 is changed to the state G force of the optical disk 7 (when the optical disk 7 is inserted into the disk reproducing device RS). Showing change FIG.

[0074] On the vertical axis, the value of the voltage applied to the DC motor is shown in volts. The higher the voltage value, the faster the DC motor rotates, so the drive roller 12 also rotates faster and the optical disc 7 moves faster. When the voltage value becomes zero, the DC motor stops rotating, so the drive roller 12 also stops and the optical disk 7 does not move.

[0075] The horizontal axis shows the positional relationship between the optical disc 7 and the disc playback device S.

[0076] State G indicates a state in which the optical disk 7 is most ejected by the rotation of the drive roller 12. From this state, the user inserts the optical disc 7 into the disc playback device S.

[0077] State F is a state in which one end of the optical disc 7 enters the disc reproducing apparatus S from the state 7. In the state F, the microcomputer unit 4 outputs a signal to the DA converter so that the voltage value a is applied to the DC motor.

Also in state E, since the voltage value applied to the DC motor is a, the optical disk 7 is inserted into the disk reproducing device S at the same speed as the speed in state F.

[0079] In state D, the hole in the center of the optical disc 7 enters the disc playback device S from the insertion / ejection port 17, so that the user's finger can be sandwiched between the optical disc 7 and the insertion / ejection port 17 No ability is lost. Therefore, when it is detected that the state of the optical disk 7 is the state D via the microcomputer unit force sensor unit 6, in order to increase the transport speed of the optical disk 7, a voltage value b is applied to the direct current motor.

[0080] Since the voltage value applied to the DC motor increases from a to b, the rotational speed of the DC motor increases and the rotational speed of the drive roller 12 also increases. As a result, the transport speed of the optical disc 7 is increased, and the optical disc 7 reaches the disc rotating section 16 earlier than before, and can be immediately recorded on the optical disc 7 to view information such as music and video. Will be able to.

[0081] Even in state C, there is no reason to change the transport speed of optical disc 7, so optical disc 7 is transported at the same speed as in state D.

[0082] In state B, since the optical disk 7 is in a position immediately before being fixed to the disk rotating portion 16, a gear (not shown) that rotates the driving roller 12 is locked, and the driving roller 12 can rotate. To prevent the rotation of the drive roller 12 from the DC motor. Reduce the applied voltage of (the voltage value is b). When the voltage applied to the DC motor is reduced, the rotational speed of the DC motor that rotates the drive roller 12 is reduced.

The gear that rotates 12 can be prevented from being locked.

In state A, the microcomputer unit 4 stops the rotation of the drive roller 12. In this state, when the rotation of the drive roller 12 stops, the disc clamper 18 descends and the optical disc 7 is fixed to the disc rotating portion 16. At the same time, the drive roller 12 moves away from the optical disc 7. When the drive roller 12 moves away from the optical disk 7, the disk rotating unit 16 rotates and information recorded on the optical disk 7 is reproduced.

As described above, when the optical disc 7 is inserted into the disc playback device RS, the microcomputer unit 4 changes the voltage applied to the DC motor based on the output state of the sensor unit 6.

Next, FIG. 6 (b) will be described. FIG. (6) is a diagram showing a change in voltage applied to the DC motor when the optical disk 7 mounted on the disk rotating unit 16 is ejected.

[0086] The voltage applied to the DC motor is a negative voltage applied to rotate the DC motor in the opposite direction to the case where the optical disk 7 is inserted.

[0087] In state A, the user has a disk ejection switch provided in the disk reproducing device RS.

When (not shown) is pressed, the optical disc 7 is released from the disc rotating section 16, and the optical disc 7 is promptly conveyed to the position of the state B, the position of the state C, and the position of the state D by the driving roller 12. . In these states, in order to move the optical disk 7 at a high speed, a large and negative voltage value d is applied to the DC motor.

[0088] State E is the state shown in FIG. 4 (b). In state E, about half of the optical disk 7 is ejected from the disk playback device RS. The optical disk 7 is close to being ejected. Therefore, in order to reduce the transport speed of the optical disc 7, the microcomputer unit 4 reduces the voltage value applied to the DC motor from I d I to I c I.

In the state F, the microcomputer unit 4 sets the voltage value applied to the DC motor to zero, but the optical disk 7 moves to the position of the state F by the inertial force of the driving roller 12.

[0090] Next, FIG. 7 shows a flowchart showing the operation when the optical disc 7 changes its state G force to the state A (when the optical disc 7 is inserted into the disc reproducing device RS). In step SI, the microcomputer unit 4 determines whether the position of the optical disk 7 is in the state F by detecting the output from the sensor unit 6. If the microcomputer unit 4 detects that the state F has been reached by the output from the sensor unit 6, the process proceeds to step S2. If the microcomputer unit 4 does not detect that the state F has been reached by the output from the sensor unit 6, step S1 is repeated.

In step S2, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor is obtained. The DC motor to which the voltage value a is applied rotates the driving roller 12 through the gear.

[0093] In step S3, the microcomputer unit 4 determines whether or not the position of the optical disc 7 is in the state D by detecting the output from the sensor unit 6. If the microcomputer unit 4 detects that the state D is entered by the output from the sensor unit 6, the process proceeds to step S4. If the microcomputer unit 4 does not detect that the state D has been reached by the output from the sensor unit 6, step S3 is repeated.

[0094] In step S4, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor is equal to (> a). The DC motor to which the voltage value b is applied rotates the driving roller 12 at high speed via the gear.

In step S 5, the microcomputer unit 4 determines whether or not the position of the optical disc 7 is in the state B by detecting the output from the sensor unit 6. If the microcomputer unit 4 detects that the state B has been reached by the output from the sensor unit 6, the process proceeds to step S6. If the microcomputer unit 4 does not detect that the state B has been reached by the output from the sensor unit 6, step S5 is repeated.

[0096] In step S6, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor is a (g). The DC motor to which the voltage value a is applied rotates the drive roller 12 at a low speed via a gear.

[0097] In step S7, the microcomputer unit 4 detects an output from the sensor unit 6 to determine whether or not the position of the optical disc 7 is in the state A. If the microcomputer unit 4 detects that the state is A by the output from the sensor unit 6, Proceed to S8. If the microcomputer unit 4 does not detect that the state A has been reached from the output from the sensor unit 6, step S7 is repeated.

[0098] In step S8, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor becomes zero. The DC motor to which a voltage value of zero is applied stops the rotation of the drive roller 12 via the gear.

[0099] Further, in step S3, after the microcomputer unit 4 detects that the state D is obtained by the output from the sensor unit 6, the light sensor PS1 to the light sensor PS5 is detected by the output from the sensor unit 6. Is unable to recognize the optical disc 7, the microcomputer unit 4 determines that the voltage applied to the DC motor is smaller than b so that the voltage value is less than b.

A signal is output to A conversion unit 3.

[0100] This state indicates that the user has detected that the optical disk 7 has been pulled out, so that the drive roller 12 and the mechanical parts such as gears rotating together with the drive roller 12 are It is necessary to reduce the rotational speed of the machine parts such as the DC motor, drive roller 12 and gears so that the rotational noise does not exceed the predetermined noise.

[0101] Next, FIG. 8 shows a flowchart showing the operation when the optical disc 7 changes from the state A to the state G (when the optical disc 7 is ejected from the disc reproducing device RS).

[0102] In step S11, the microcomputer unit 4 detects whether or not the disc ejection switch (EJECT switch) has been pressed. If the microcomputer unit 4 detects that the disc ejection switch has been pressed, the process proceeds to step S12. If the microcomputer unit 4 does not detect that the disc eject switch has been pressed, repeat step S11.

[0103] In step S12, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor is d. The DC motor to which the voltage value d is applied rotates the drive roller 12 at high speed via a gear and tries to quickly eject the optical disk 7 from the disk reproducing device RS.

In step S13, the microcomputer unit 4 detects the output from the sensor unit 6. Thus, it is determined whether or not the position of the optical disk 7 is in the state E. If the microcomputer unit 4 detects that the state E has been reached by the output from the sensor unit 6, the process proceeds to step S14. If the microcomputer unit 4 does not detect that the state E is reached by the output from the sensor unit 6, repeat step S13.

[0105] In step S14, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor is c (I d I> I c I). The DC motor marked with the voltage value c rotates the drive roller 12 at a low speed via the gear because the ejecting operation of the optical disc 7 is almost finished.

In step S15, the microcomputer unit 4 detects the output from the sensor unit 6 to determine whether the position of the optical disc 7 is in the state F. If the microcomputer unit 4 detects that the state F has been reached by the output from the sensor unit 6, the process proceeds to step S16. If the microcomputer unit 4 does not detect that the state F has been reached by the output from the sensor unit 6, step S15 is repeated.

[0107] In step S16, the microcomputer unit 4 outputs a signal to the DA conversion unit 3 so that the voltage value applied to the DC motor becomes zero. The DC motor to which the voltage value of zero is applied stops the rotation of the driving roller 12 through the gear.

[0108] The state F moves to the state G due to the inertial force of the drive roller 12.

[0109] In step S11, after the microcomputer unit 4 detects that the disc ejection switch has been pressed, the optical sensor S1 to the optical sensor PS5 detect the optical disc 7 according to the output from the sensor unit 6. When the microcomputer unit 4 cannot recognize the signal, the microcomputer unit 4 sends a signal to the DA converter unit 3 so that the voltage value applied to the DC motor becomes a negative voltage value smaller than I d I. Is output.

[0110] This state indicates that the user has detected that the optical disk 7 has been pulled out of the optical disk reproducing device, and therefore the drive roller 12 and the machine such as a gear that rotates together with the drive roller 12 are detected. In order to reduce the rotational speed of machine parts such as the DC motor, drive roller 12 and gears, the rotational speed of the DC motor must be reduced so that the rotational noise of the parts does not exceed the noise that has been determined. To do.

[0111] Note that this application has described the power of a slot-in type optical disc device. However, the present invention can also be applied to a type of optical disk device having a disk tray. In addition to optical disks, various recording media such as magneto-optical disks such as MD (Mini Dies) and magnetic media such as cassettes can be applied without departing from the spirit of the present invention.

[0112] It should be noted that the flowcharts of Figs. 7 and 8 and the program for performing the corresponding operation after the above-described optical disc 7 has been pulled out of the optical disc playback device are recorded in advance on a flexible disc or a network such as the Internet. It is also possible to cause the general-purpose microcomputer or the like to function as the CPU according to the embodiment by recording it in advance and reading and executing it using a general-purpose microcomputer or the like.

[0113] As described above, in this embodiment, a gear (not shown) for rotating the drive roller 12 is opened at a position immediately before the optical disc 7 is fixed to the disc rotating portion 16. In order to prevent the drive roller 12 from rotating, the voltage applied to the DC motor is reduced so that the rotation speed of the drive roller 12 is reduced. When the applied voltage force to the direct current motor becomes short, the rotational speed of the direct current motor that rotates the drive roller 12 decreases, so that the gear that rotates the drive roller 12 can be prevented from being locked.

[0114] If the user's finger is inserted into the hole at the center of the optical disc while the optical disc 7 is being inserted into the disc insertion / ejection unit 1, the user's finger is inserted into the disc insertion / ejection. Part 1 is inserted in the insertion port! In order to avoid this problem, the voltage applied to the DC motor output from the microcomputer unit 4 is reduced.

[0115] Further, when the optical disk 7 has been subjected to a tray force by the user while the optical disk 7 is being inserted into the disk insertion / ejection unit 1, a gear that rotates together with the drive roller 12 and the drive opening roller 12 or the like. To reduce the applied voltage to the direct current motor that rotates the machine parts such as the drive roller 12 and gears, so that the rotation sound of the machine parts does not exceed the noise determined by the The voltage output from the microcomputer unit 4 can be controlled.

[0116] In the above description, the force described using a DC motor as an example is not limited to this. For example, a stepping motor can be used. The stepping motor is driven by a pulse signal with a predetermined period. By changing according to the position, the disk transport speed can be changed, and the same effect as a DC motor can be obtained.

[0117] For example, in the state corresponding to voltage b in Fig. 6 (a), the cycle of the electrical signal applied to the stepping motor is greater than the cycle of the electrical signal applied to the stepping motor in the state corresponding to voltage a. Also shorten it. In this case, when the period of the electric signal applied to the stepping motor is short, the rotation speed of the stepping motor becomes faster than when the period of the electric signal is long.

[0118] In the state corresponding to voltage b in Fig. 6 (a), the pulse width of the electric signal applied to the stepping motor is the same as that of the electric signal applied to the stepping motor in the state corresponding to voltage a. It becomes longer than the pulse width. In this case, when the pulse width of the electric signal applied to the stepping motor is short, the rotation speed of the stepping motor becomes faster than when the pulse width of the electric signal is long.

[0119] The period and pulse width of the electric signal applied to the stepping motor may be changed simultaneously, or may be changed independently.

[0120] Also, in the state corresponding to voltage d in Fig. 6 (b), the period of the electric signal applied to the stepping motor is the same as that of the electric signal applied to the stepping motor in the state corresponding to voltage c. Shorter than the period. Further, in the state corresponding to the voltage d in FIG. 6 (b), the pulse width of the electric signal applied to the stepping motor is equal to the pulse width of the electric signal applied to the stepping motor in the state corresponding to the voltage c. Longer than.

[0121] Also in this case, the period and pulse width of the electric signal applied to the stepping motor may be changed at the same time, or may be changed independently.

[0122] The phase of the electric signal applied to the stepping motor in Fig. 6 (a) and the phase of the electric signal applied to the stepping motor in Fig. 6 (b) are reversed, so that the stepping motor The rotation direction can be changed in the opposite direction.

[0123] In addition, the entire disclosure of the Japanese patent application (No. 2006-12833), including the specification, claims, drawings, and abstract filed on January 20, 2006, is referred to in its entirety. Therefore, it is incorporated here.

Claims

The scope of the claims

[1] Conveying means for conveying the information recording medium between an insertion / ejection port into which the information recording medium is inserted and ejected and an information recording medium reproduction position;

Position detecting means for detecting the position of the information recording medium at the time of conveying the information recording medium;

Control means for changing the conveying speed of the information recording medium to at least two or more speeds based on the position of the information recording medium detected by the position detecting means. Insertion / discharge control device.

[2] In the information recording medium insertion / ejection control device according to claim 1,!

The control means, when the information recording medium is positioned in the vicinity of the information recording medium reproduction position, makes the conveyance speed of the information recording medium slower than a predetermined speed. Media insertion / ejection control device.

[3] In the information recording medium insertion / ejection control device according to claim 1 or 2,

If the information recording medium detected by the position detecting means is not detected by the position detecting means before the information recording medium insertion / discharge operation is completed, the control means An information recording medium insertion / ejection control apparatus, characterized in that a conveying speed of the information recording medium is made slower than a predetermined speed.

[4] In the information recording medium insertion / ejection control device according to claim 3,

The information recording medium insertion / ejection control device, wherein the control means makes the conveyance speed of the information recording medium slower than a predetermined speed and completes the insertion or ejection operation of the conveyance means.

[5] The information recording medium insertion / ejection control device according to any one of [1] to [4], wherein the control means detects the information detected by the position detection means when inserting the information recording medium. When the vicinity of the central portion of the recording medium is inserted into the information recording medium insertion / ejection control device, the conveyance speed of the information recording medium is made slower than a predetermined speed and the information recording medium is discharged. The vicinity of the center portion of the information recording medium detected by the position detecting means is the information recording medium insertion / extraction. Output control device force An information recording medium insertion / ejection control device characterized in that the conveying speed of the information recording medium is made faster than a predetermined speed until it is discharged.

[6] The information recording medium insertion / ejection control device according to any one of [1] to [5], wherein the control means is a voltage applied to the conveying means when changing the conveying speed of the information recording medium. An information recording medium insertion / ejection control device characterized by controlling the size of the recording medium.

[7] In the information recording medium insertion / ejection control device according to any one of [1] to [5], the control means may be configured to apply an electric power applied to the conveying means when changing the conveying speed of the information recording medium. An information recording medium insertion / ejection control apparatus that controls at least one of a signal cycle and an electric signal width.

[8] A transporting process for transporting the information recording medium between an insertion / ejection port into which the information recording medium is inserted and ejected and an information recording medium reproduction position;

A position detecting step of detecting the position of the information recording medium during conveyance of the information recording medium;

A control step of changing the conveying speed of the information recording medium to at least two or more speeds based on the position of the information recording medium detected in the position detecting step. An information recording medium insertion / ejection control method.

[9] A computer included in the information recording medium insertion / ejection control device,

Conveying means for conveying the information recording medium between an insertion / ejection port into which the information recording medium is inserted and ejected and an information recording medium reproduction position;

Position detecting means for detecting the position of the information recording medium during conveyance of the information recording medium;

An information recording medium that functions as control means for changing the conveying speed of the information recording medium to at least two speeds based on the position of the information recording medium detected by the position detecting means. Insertion / discharge control program.

[10] The information recording medium insertion / ejection control program according to claim 9 is read by a computer. A recording medium characterized by being recorded as possible.