US20010043552A1 - Apparatus for reproducing an optical disc - Google Patents
Apparatus for reproducing an optical disc Download PDFInfo
- Publication number
- US20010043552A1 US20010043552A1 US09/272,099 US27209999A US2001043552A1 US 20010043552 A1 US20010043552 A1 US 20010043552A1 US 27209999 A US27209999 A US 27209999A US 2001043552 A1 US2001043552 A1 US 2001043552A1
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- United States
- Prior art keywords
- disc
- driving roller
- driving
- tray
- trays
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 title claims description 4
- 230000037431 insertion Effects 0.000 abstract description 29
- 238000003780 insertion Methods 0.000 abstract description 29
- 230000007246 mechanism Effects 0.000 description 33
- 238000007599 discharging Methods 0.000 description 18
- 238000010276 construction Methods 0.000 description 4
- 239000011295 pitch Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/021—Selecting or spacing of record carriers for introducing the heads
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/0401—Details
- G11B17/0402—Servo control
- G11B17/0404—Servo control with parallel drive rollers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/22—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records
- G11B17/26—Guiding record carriers not specifically of filamentary or web form, or of supports therefor from random access magazine of disc records the magazine having a cylindrical shape with vertical axis
Definitions
- the present invention relates to a device for reproducing an optical disc selected from a plurality of discs stored in a disc storage, and more particularly to a disc reproducing device mounted on a motor vehicle.
- FIG. 28 shows a disc reproducing device, which was filed by the applicant and disclosed in Japanese Patent Application Laid Open 10-21628.
- the reference numeral 500 represents a driving roller
- 501 is a disc storing section
- 502 is a tray
- 503 , 504 are disc pulling out arms
- 505 , 506 are coil springs
- 507 is a disc discharging arm.
- the driving roller 500 is driven by a motor (not shown) to carry a disc inserted passing through an opening to the disc storing section 501 .
- a motor not shown
- a plurality of trays, each holding a disc are arranged in the disc storing section 501 .
- a desired tray is located to a position corresponding to the driving roller 500 for changing the disc.
- a disc carrying device (not shown) between the disc storing section 501 and a disc reproducing section (not shown).
- the disc pulling out arm 503 is rotatable about a shaft 503 a and has a contact portion 503 b to be contacted with a periphery of disc D, and urged in the clockwise direction by the spring 505 .
- the disc pulling out arm 504 is rotatable about a shaft 504 a , has a contact portion 504 b , and urged in the counterclockwise direction by the spring 506 .
- the disc discharging arm 507 is located so as to be contacted with the disc.
- the arms 503 and 504 are located in positions A.
- arms 503 and 504 are rotated to positions B.
- the arms 503 and 504 push the disc, thereby removing the disc from the driving roller 500 and inserting the disc in the tray 502 .
- the discharging arm 507 is rotated to the position A to push the disc to the driving roller 500 .
- arms 503 , 504 and 507 must be provided in order to carry the disc. Therefore, the device is complicated in construction, which results in high manufacturing cost.
- An object of the present invention is to provide a disc reproducing device which is simple in construction and has high reliability.
- an apparatus for reproducing an optical disc comprising, a disc reproducing device, a disc storing device having a plurality of trays each of which stores a disc, a supporting means movable between a disc insertion opening and the disc storing device, a driving roller rotatably mounted on the supporting means for carrying a disc inserted in the opening toward the disc storing device, moving means for moving the supporting means between the opening and the disc storing means, and driving means for rotating the driving roller.
- the disc reproducing device is mounted on the supporting means.
- a movable plate is provided for cooperating the driving roller so as to carry the disc, and an erectable stopping member provided adjacent the opening to be stood when the driving roller is located at the disc storing device so as to prevent a disc from entering the apparatus.
- the trays are vertically arranged, and moved in the arranging direction.
- the disc reproducing device is located between the driving roller and the disc storing device.
- the driving roller is provided for carrying the disc between one of the trays and the disc reproducing device.
- FIG. 1 is a perspective view showing an embodiment of the present invention
- FIG. 2 is a plan view showing the embodiment of the invention.
- FIG. 3 is a side view
- FIG. 4 is a plan view
- FIG. 5 a is a side view showing a driving shaft
- FIG. 5 b is a sectional view of the driving shaft
- FIG. 5 c is an enlarged view of a part of FIG. 5 b;
- FIG. 5 d is a plan view of the shaft
- FIG. 6 is a plan view showing a driving mechanism for the driving shaft
- FIG. 7 is a plan view showing a disc holding device
- FIGS. 8 a to 8 c show a disc holding mechanism showing an embodiment of the invention
- FIGS. 9 a and 9 b show a disc carrying portion showing an embodiment of the invention
- FIGS. 10 a and 10 b show a turntable and others of the invention
- FIGS. 11 a to 12 c show a supporting chassis moving mechanism
- FIG. 13 is a side view showing the turntable and a pickup
- FIGS. 14 to 18 are plan views for explaining the operation of the embodiment of the invention.
- FIGS. 19 a to 20 b are side views for explaining the operation
- FIGS. 21 to 25 are plan views for explaining the operation of the reproducing of a small disc
- FIGS. 26 a to 27 b are side views showing the operation.
- FIG. 28 is a plan view of a conventional device.
- FIG. 1 is a perspective view showing the apparatus of the present invention
- FIG. 2 is a plan view of the apparatus.
- the apparatus of the invention comprises following three portions provided in a chassis 1 . Namely, there is provided a disc carrying device 100 provided with a driving rollers 101 , a disc reproducing device 200 having a turntable 201 , and a pickup 203 , and a disc storing device 300 having trays 301 , storing discs in the direction of the arrow z in FIG. 1.
- the disc carrying device 100 carries a disc inserted by a user from a disc insertion opening of a front panel to the disc reproducing device 200 or the disc storing device 300 , and discharges a large diameter disc 302 from the disc reproducing device 200 or the disc storing device 300 .
- the driving rollers 101 contact with the lower side of a disc inserted into a disc carrying passage 102 through the insertion opening, and carry the disc in the direction x.
- a supporting chassis 103 supporting the driving rollers 101 is provided to be moved in the direction x by a supporting chassis moving mechanism described later. Therefore, the disc is carried in the direction x by the movement of the supporting chassis 103 .
- the disc reproducing device 200 is composed of a turntable 201 provided at the underside of the disc 302 , a damper 202 for clamping the disc in cooperation with the turntable 201 provided at the upper side of the disc, a pickup 203 , and a pickup feed mechanism for moving the pickup 203 in the radial direction of the disc.
- the disc reproducing device 200 is supported on the supporting chassis 103 at the disc storing device 300 side rather than the disc carrying device 100 . Due to the disposition, the disc reproducing device 200 can be moved together with the disc carrying device 100 in the direction x. Since the space between the turntable 201 and the clamper 202 is communicated with the disc carrying passage 102 in the non-clamping state, the disc to be fed in by the driving rollers 101 can be passed through the space.
- the clamper 202 is supported in a state where it cannot be moved relative to a clamper base 205 , a clamping operation and an unclamping operation for the disc are performed by raising and lowering the turntable 201 in the direction z (FIG. 1) by means of an unillustrated clamping mechanism.
- the disc storing device 300 which is composed of four trays 301 arranged in the direction z, is provided for storing four discs. There is provided with a tray carrying device for carrying the tray 301 in the direction z.
- the tray carrying device includes a driving shaft 305 .
- FIG. 3 is a rear view of the disc storing device 300 .
- the reference numeral 301 designates a tray, 305 is a driving shaft, 306 is a guide shaft, and 307 is a synchronizing gear.
- FIG. 4 is a plan view showing the tray 301 .
- the tray has a semicircular annular shape having a diameter slightly larger than that of the disc 302 .
- the tray has a disc holding surface 301 a , guide holes 301 b , driving shaft inserting holes 301 c , and engaging projections 301 d .
- a disc face holding mechanism 301 x and a disc edge holding mechanism 301 y are provided as mechanisms for holding the disc on the tray.
- the four trays are all the same in construction.
- the four guide shafts 306 (only two shafts are shown in FIG. 3) are secured on the main chassis 1 in the direction z, and these shafts are inserted in the guide holes 301 b .
- the tray 301 is regulated in movement so as to be moved in the direction z.
- the four driving shafts 305 (only three shafts are shown in FIG. 3) are rotatably supported on the main chassis 1 .
- Each of the driving shafts 305 has a helical groove and is inserted in the driving shaft inserting hole 301 c ,
- the engaging projection 301 d of each tray is engaged with the helical groove 305 a .
- the engaging projections 301 d of four trays are positioned at every one pitch of the herical grooves 305 a .
- the four driving shafts 305 are rotated by a synchronously driving mechanism in synchronism with each other as described hereinafter.
- the trays 301 are moved in the direction z at the same time by rotating the driving shafts 305 .
- FIGS. 5 a - 5 c show the driving shaft 305 .
- grooves 305 a of an upper end portion and a lower end portion of the driving shaft 305 have small and constant pitches and has a large pitch at a middle portion 305 b . Therefore, the tray the engaging projection 301 d of which engages with the middle portion 305 b of the groove 305 a is positioned apart from other trays as shown in FIG. 3.
- the helical groove 305 a at the middle portion 305 b of the groove 305 a is located at the same height as the disc to be reproduced by the disc reproducing portion.
- the height is also a height of a disc to be inserted in one of the trays.
- the middle portion 305 b is positioned at the height of the disc reproducing position of the disc player, and also at the height of the disc to be inserted in one of the trays by the carrier.
- the tray when the disc is stored into the disc storing device 300 , the tray is positioned at the height, and similarly when the disc is discharged from the disc storing device, the tray is positioned at the height.
- the reproducing device 200 can be positioned at the space formed between trays 301 .
- a flat groove portion 305 c is formed in a range at every one pitch in each of the grooves 305 a at the upper and lower portions and the middle portion 305 b .
- the tray is prevented from deviating from the position in the direction z even if the timing for stopping the rotation of the driving shaft 305 deviates.
- FIG. 6 shows a mechanism for synchronously driving the four driving shafts 305 .
- a synchronizing gear 307 is rotatable in the chassis 1 , and provided to be rotated about a shaft around a fulcrum 307 a .
- the synchronizing gear 307 is rotated by driving force of a motor 309 transmitted through a transmitting mechanism 308 .
- Transmitting gears 310 are engaged with the synchronizing gear 307 and each of the transmitting gears 310 is engaged with a gear 305 d formed on the upper end of the driving shaft 305 . Accordingly, the rotation of the synchronizing gear 306 is transmitting through each transmitted gear 310 to each driving shaft 305 , and hence the four driving shafts 305 are rotated synchronously with one another in the same direction.
- FIG. 7 is an enlarged view of the disc edge holding mechanism 301 y of the tray 301 shown in FIG. 4.
- a disc holding arm 311 is provided at a position adjacent the tray 301 so as to be rotated about a shaft 311 a .
- the arm 311 is urged by a coil spring 312 in the arrow direction in the figure so that an end portion 311 b of the arm 311 pushes the outer edge of the disc 302 to prevent the disc from deviating in the discharging direction by external force.
- the end portion 311 b engaged with the edge of the disc 302 is positioned at a position outside a line connecting the shaft 311 a and the center of the disc (at the discharging direction side of the disc). Since the disposition provide a sufficient disc holding force even if the coil spring 312 has a small elastic force, the disc holding arm 311 can be reduced in size.
- a disc holding member 312 is composed of a holding portion 312 a and a supporting shaft 312 b .
- the holding portion 312 a can be rotated about the supporting shaft 312 b .
- the supporting shaft 312 b is urged by a coil spring 313 in the arrow direction in FIG. 8 b . Since the upper face of the disc 302 carried toward the tray 301 is pressed by an end portion of the holding portion 312 a , the disc is prevented from vibrating in the vertical direction due to external force.
- FIGS. 9 a and 9 b show the disc carrying device 100 .
- a motor 104 and a transmitting mechanism 105 composed of a plurality of pinions are supported on the supporting chassis 103 .
- the driving roller 101 has a pinion 101 a coaxially formed at an end thereof, and is rotatably supported on the supporting chassis 103 at an upright portion 103 a of the supporting chassis 103 and the other end is supported on the supporting chassis 103 .
- the pinion 101 a of the driving roller 101 is engaged with the pinion of the transmitting mechanism 105 . Therefore, the driving force of the motor 104 is transmitted to the driving roller 101 .
- a pair of guide projections 103 b are projected from the left and right sides of the supporting chassis 103 .
- the guide projections are guided in the direction x.
- a movable plate 106 is provided to form the disc carrying passage 102 together with the driving roller 101 .
- the disc carrying passage 102 is formed so that the disc can be held by the driving roller 101 and the movable plate 106 .
- a protective cloth is attached on the underside of the movable plate 106 so that the disc is not scratched.
- the movable plate 106 is supported by a guiding mechanism (not shown) so as to be movable in the direction z relative to the supporting chassis 103 . Additionally, the movable plate 106 can be moved together with a clamping mechanism of the disc reproducing device 200 .
- a disc diameter determining sensor (not shown) is provided adjacent the driving roller 101 .
- the sensor determines whether an inserted disc is a large-diameter disc (12 cm CD) or a small-diameter disc (8 cm CD).
- FIGS. 11 a to 13 show a supporting chassis moving mechanism.
- a cam gear 2 is rotatably supported by a shaft 2 a on the underside of the chassis 1 .
- the cam gear is rotated by a motor (not shown) through a transmitting gear 3 .
- a cam groove 2 b is formed in the cam gear 2 so that the distance from the shaft 2 a gradually increases.
- a pair of guide grooves 4 a each having an elongated shape in the direction x are formed at both side portions of a slider 4 .
- a projection 1 a provided on the underside of the bottom of the chassis 1 is slidably engaged with each of the guide grooves 4 a .
- projection 4 b which is provided on a middle portion of the slider 4 , is slidably engaged with a guide groove 1 b formed in the bottom of the chassis 1 in the direction x.
- the cam groove 2 b of the cam gear 2 is also slidably engaged with the projection 4 b.
- a pair of upright portions 4 c are formed at opposite portions of the slider 4 , and a groove hole 4 d is formed in each of the upright portions 4 c .
- a linear guide groove 1 e is formed in the direction x in each side plate 1 d of the chassis 1 .
- Each of the guide projections 103 b of the supporting chassis 103 is engaged with the groove hole 4 d of the slider 4 and each guide groove 1 e of the side plate 1 d.
- the movement of the slider 4 is regulated in the direction x.
- the slider 4 is moved in the direction x when the projection 4 b is moved along the groove 1 b by the cam groove 2 b due to the rotation of the cam gear 2 .
- the guide projections 103 b are moved in the direction x.
- the supporting chassis 103 is moved in the direction x.
- the disc carrying device 100 and the disc reproducing device 200 held on the supporting chassis 103 are moved in the direction x.
- FIG. 13 is a side view of the disc reproducing device 200 .
- the disc reproducing device 200 clamps and unclamps the disc by raising and lowering the turntable 201 , and the pickup 203 is also raised and lowered together with the turntable 201 . Since the pickup 203 is lowered at a position near the turntable 201 , there is a space 204 in which a printed circuit board, a motor and others can be disposed in the space 204 .
- FIGS. 14 to 20 b are plan views of the apparatus, and FIGS. 19 and 20 are side views.
- the driving roller 101 is in a waiting state at the insertion starting position.
- a sensor detects insertion of the disc, and the driving roller 101 is rotated in the disc carrying direction. The disc is accordingly moved into the apparatus.
- the diameter determining sensor determines the diameter of the disc (12 cm CD). Thereafter the driving roller 101 is stopped.
- FIGS. 15 and 19 b show the state where the driving roller 101 is stopped. At that time, the disc is held by the driving roller 101 and the movable plate 106 .
- the supporting chassis moving mechanism is driven and the driving roller 101 and the disc reproducing device 200 are moved to the disc storing device 300 .
- Reference numeral 10 designates an erectable stopping member.
- the member 10 is laid when the supporting chassis 103 is at the disc insertion opening side.
- the member 10 is stood, thereby preventing an erroneous insertion of a new disc.
- a pair of disc stoppers 10 a are provided on the member 10 . The disc stoppers are provided for positioning the center of the disc at the center of the turntable when reproducing.
- the driving roller 101 is moved back to the disc insertion opening by driving the supporting chassis moving mechanism, while the driving roller is rotated in the disc inserting direction. At that time, since the disc is pushed to the tray due to the rotating of the driving roller 101 , only the driving roller 101 is moved back, leaving the disc on the tray 301 . As shown in FIGS. 18 and 19 d , when the driving roller 101 is moved back to the insertion starting position, the movement of the supporting chassis 103 is stopped. Thus, the operation of carrying the disc inserted from the outside of the apparatus to the disc storing device is completed.
- the driving roller 101 is rotated in the disc discharging direction, while the supporting chassis 103 is stopped. Therefore, only the disc is moved back to the insertion opening.
- the driving roller 101 is positioned at the insertion starting position. From this state, the driving roller 101 is moved to the disc storing device 300 by driving the supporting chassis moving mechanism, while rotating the driving roller 101 in the discharging direction. As shown in FIG. 16, when the driving roller 101 reaches the disc storing position and grips the disc, the driving of the supporting chassis moving mechanism and the rotating of the driving roller 101 are stopped.
- the driving roller 101 is moved back to the disc insertion opening by driving the supporting chassis moving mechanism without rotating the driving roller 101 .
- the driving roller 101 reaches the insertion starting position as shown in FIG. 15, the driving of the supporting chassis moving mechanism is stopped. Subsequently, the driving roller 101 is rotated in the disc discharging direction. Then the disc is discharged from the apparatus.
- the operation for reproducing the disc stored in the disc storing device 300 is described.
- the operation for moving the driving roller 101 from the insertion starting position to the disc storing position is the same as the operation for discharging the disc stored in the disc storing device 300 .
- the driving roller 101 is rotated in the disc discharging direction, while the supporting chassis moving mechanism is kept stationary. In the operation, the driving roller 101 is not moved, and hence only the disc is moved back toward the insertion opening.
- the operation for discharging the disc from the turntable is described.
- the disc is released from the clamper 202 .
- the driving roller 101 is rotated in the disc insertion direction, and as shown in FIG. 16 the disc is temporarily stored in the disc storing device 300 , and the driving roller 101 is stopped.
- the driving roller is moved back to the disc insertion opening side by driving the supporting chassis moving mechanism without rotating the driving roller 101 .
- the driving roller 101 reaches the insertion starting position as shown in FIG. 15, the supporting chassis moving mechanism is stopped.
- the driving roller 101 is rotated in the disc discharging direction, thereby discharging the disc from the apparatus.
- the driving roller is moved back to the disc insertion opening side by driving the supporting chassis moving mechanism, while the driving roller 101 is rotated in the disc inserting direction. Since the disc is pressed against the tray 301 , only the driving roller 101 is moved back, leaving the disc on the tray 301 . As shown in FIG. 18, when the driving roller 101 is moved back to the insertion starting position, movement of the driving roller 101 is stopped.
- the small-diameter disc (8 cm CD) cannot be stored in the disc storing device 300 . However the disc can be directly reproduced by inserting it from the outside of the apparatus. The operation is described with reference to FIGS. 21 to 27 .
- the driving roller 101 is in the waiting state at the insertion starting position.
- the sensor detects insertion of the disc, and the driving roller 101 is rotated in the disc inserting direction to carrying the disc.
- FIGS. 22 and 26 a show the state where the driving roller 101 is stopped. Since the diameter of the disc 302 a is shorter than the width of the disc insertion opening, the disc is scarcely positioned at the center of the insertion opening, as shown in FIG. 22.
- the supporting chassis moving mechanism is driven and the driving roller 101 and the disc reproducing device 200 are moved to the disc storing device 300 . As shown in FIGS. 23 and 26 b , when the driving roller 101 reaches the disc storing position where the large disc is held on the tray 301 , the supporting chassis moving mechanism is stopped.
- the disc is moved back to the insertion opening by turning the driving roller 101 in the disc discharging direction. At that time, the disc is positioned at the center by being brought into contact with disc stoppers 10 a of the erectable member 10 .
- the disc is positioned on the turntable 201 by turning the driving roller 101 by the predetermined number of rotations in the disc inserting direction.
- the clamping operation is performed and the disc is reproduced.
- the driving roller 101 is moved to the insertion starting position by driving the supporting chassis driving mechanism.
- the disc is discharged from the apparatus by rotating the driving roller 101 in the discharging direction.
- the present invention may be applied to a device for reproducing a single disc.
- the apparatus of the present invention there is not provided disc pulling out arms and a disc discharging arm. Therefore, the apparatus is simple in construction and can be manufactured at a low cost.
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- Feeding And Guiding Record Carriers (AREA)
- Automatic Disk Changers (AREA)
Abstract
Description
- The present invention relates to a device for reproducing an optical disc selected from a plurality of discs stored in a disc storage, and more particularly to a disc reproducing device mounted on a motor vehicle.
- In recent years, a disc reproducing device in which a disc can be changed through an opening for inserting a disc to be reproduced has been proposed.
- FIG. 28 shows a disc reproducing device, which was filed by the applicant and disclosed in Japanese Patent Application Laid Open 10-21628.
- In the figure, the
reference numeral 500 represents a driving roller, 501 is a disc storing section, 502 is a tray, 503, 504 are disc pulling out arms, 505, 506 are coil springs, and 507 is a disc discharging arm. - The
driving roller 500 is driven by a motor (not shown) to carry a disc inserted passing through an opening to thedisc storing section 501. In the disc storingsection 501, a plurality of trays, each holding a disc, are arranged. A desired tray is located to a position corresponding to thedriving roller 500 for changing the disc. There is provided a disc carrying device (not shown) between thedisc storing section 501 and a disc reproducing section (not shown). - The disc pulling out
arm 503 is rotatable about ashaft 503 a and has acontact portion 503 b to be contacted with a periphery of disc D, and urged in the clockwise direction by thespring 505. Similarly, the disc pulling outarm 504 is rotatable about ashaft 504 a, has acontact portion 504 b, and urged in the counterclockwise direction by thespring 506. Thedisc discharging arm 507 is located so as to be contacted with the disc. - Before the inserting of the disc, the
arms driving roller 500,arms arms driving roller 500 and inserting the disc in thetray 502. When discharging the disc, thedischarging arm 507 is rotated to the position A to push the disc to thedriving roller 500. - In the conventional device,
arms - An object of the present invention is to provide a disc reproducing device which is simple in construction and has high reliability.
- According to the present invention, there is provided an apparatus for reproducing an optical disc comprising, a disc reproducing device, a disc storing device having a plurality of trays each of which stores a disc, a supporting means movable between a disc insertion opening and the disc storing device, a driving roller rotatably mounted on the supporting means for carrying a disc inserted in the opening toward the disc storing device, moving means for moving the supporting means between the opening and the disc storing means, and driving means for rotating the driving roller.
- The disc reproducing device is mounted on the supporting means.
- Furthermore, a movable plate is provided for cooperating the driving roller so as to carry the disc, and an erectable stopping member provided adjacent the opening to be stood when the driving roller is located at the disc storing device so as to prevent a disc from entering the apparatus.
- The trays are vertically arranged, and moved in the arranging direction.
- The disc reproducing device is located between the driving roller and the disc storing device.
- The driving roller is provided for carrying the disc between one of the trays and the disc reproducing device.
- These and other objects and features of the present invention will become more apparent from the following detailed description with reference to the accompanying drawing.
- FIG. 1 is a perspective view showing an embodiment of the present invention;
- FIG. 2 is a plan view showing the embodiment of the invention;
- FIG. 3 is a side view;
- FIG. 4 is a plan view;
- FIG. 5a is a side view showing a driving shaft;
- FIG. 5b is a sectional view of the driving shaft;
- FIG. 5c is an enlarged view of a part of FIG. 5b;
- FIG. 5d is a plan view of the shaft;
- FIG. 6 is a plan view showing a driving mechanism for the driving shaft;
- FIG. 7 is a plan view showing a disc holding device;
- FIGS. 8a to 8 c show a disc holding mechanism showing an embodiment of the invention;
- FIGS. 9a and 9 b show a disc carrying portion showing an embodiment of the invention;
- FIGS. 10a and 10 b show a turntable and others of the invention;
- FIGS. 11a to 12 c show a supporting chassis moving mechanism;
- FIG. 13 is a side view showing the turntable and a pickup;
- FIGS.14 to 18 are plan views for explaining the operation of the embodiment of the invention;
- FIGS. 19a to 20 b are side views for explaining the operation;
- FIGS.21 to 25 are plan views for explaining the operation of the reproducing of a small disc;
- FIGS. 26a to 27 b are side views showing the operation; and
- FIG. 28 is a plan view of a conventional device.
- An embodiment of the present invention is described with reference to the drawings.
- FIG. 1 is a perspective view showing the apparatus of the present invention, and FIG. 2 is a plan view of the apparatus. The apparatus of the invention comprises following three portions provided in a
chassis 1. Namely, there is provided a disc carryingdevice 100 provided with adriving rollers 101, adisc reproducing device 200 having aturntable 201, and apickup 203, and adisc storing device 300 havingtrays 301, storing discs in the direction of the arrow z in FIG. 1. - The disc carrying
device 100 carries a disc inserted by a user from a disc insertion opening of a front panel to thedisc reproducing device 200 or thedisc storing device 300, and discharges alarge diameter disc 302 from thedisc reproducing device 200 or thedisc storing device 300. - The
driving rollers 101 contact with the lower side of a disc inserted into adisc carrying passage 102 through the insertion opening, and carry the disc in the direction x. A supportingchassis 103 supporting thedriving rollers 101 is provided to be moved in the direction x by a supporting chassis moving mechanism described later. Therefore, the disc is carried in the direction x by the movement of the supportingchassis 103. - The
disc reproducing device 200 is composed of aturntable 201 provided at the underside of thedisc 302, adamper 202 for clamping the disc in cooperation with theturntable 201 provided at the upper side of the disc, apickup 203, and a pickup feed mechanism for moving thepickup 203 in the radial direction of the disc. - As illustrated, the
disc reproducing device 200 is supported on the supportingchassis 103 at thedisc storing device 300 side rather than thedisc carrying device 100. Due to the disposition, thedisc reproducing device 200 can be moved together with thedisc carrying device 100 in the direction x. Since the space between theturntable 201 and theclamper 202 is communicated with thedisc carrying passage 102 in the non-clamping state, the disc to be fed in by the drivingrollers 101 can be passed through the space. - As shown in FIG. 10a, the
clamper 202 is supported in a state where it cannot be moved relative to aclamper base 205, a clamping operation and an unclamping operation for the disc are performed by raising and lowering theturntable 201 in the direction z (FIG. 1) by means of an unillustrated clamping mechanism. - The
disc storing device 300, which is composed of fourtrays 301 arranged in the direction z, is provided for storing four discs. There is provided with a tray carrying device for carrying thetray 301 in the direction z. The tray carrying device includes a drivingshaft 305. - FIG. 3 is a rear view of the
disc storing device 300. Thereference numeral 301 designates a tray, 305 is a driving shaft, 306 is a guide shaft, and 307 is a synchronizing gear. FIG. 4 is a plan view showing thetray 301. The tray has a semicircular annular shape having a diameter slightly larger than that of thedisc 302. The tray has adisc holding surface 301 a, guide holes 301 b, drivingshaft inserting holes 301 c, and engagingprojections 301 d. A discface holding mechanism 301 x and a discedge holding mechanism 301 y are provided as mechanisms for holding the disc on the tray. The four trays are all the same in construction. - As shown in FIG. 3, the four guide shafts306 (only two shafts are shown in FIG. 3) are secured on the
main chassis 1 in the direction z, and these shafts are inserted in the guide holes 301 b. Thus, thetray 301 is regulated in movement so as to be moved in the direction z. - The four driving shafts305 (only three shafts are shown in FIG. 3) are rotatably supported on the
main chassis 1. Each of the drivingshafts 305 has a helical groove and is inserted in the drivingshaft inserting hole 301 c, The engagingprojection 301 d of each tray is engaged with thehelical groove 305 a. The engagingprojections 301 d of four trays are positioned at every one pitch of theherical grooves 305 a. The four drivingshafts 305 are rotated by a synchronously driving mechanism in synchronism with each other as described hereinafter. Thus, thetrays 301 are moved in the direction z at the same time by rotating the drivingshafts 305. - FIGS. 5a-5 c show the driving
shaft 305. - As shown in FIGS. 5a and 5 b,
grooves 305 a of an upper end portion and a lower end portion of the drivingshaft 305, have small and constant pitches and has a large pitch at amiddle portion 305 b. Therefore, the tray the engagingprojection 301 d of which engages with themiddle portion 305 b of thegroove 305 a is positioned apart from other trays as shown in FIG. 3. Thehelical groove 305 a at themiddle portion 305 b of thegroove 305 a is located at the same height as the disc to be reproduced by the disc reproducing portion. - Furthermore, the height is also a height of a disc to be inserted in one of the trays.
- Namely, the
middle portion 305 b is positioned at the height of the disc reproducing position of the disc player, and also at the height of the disc to be inserted in one of the trays by the carrier. - Namely, when the disc is stored into the
disc storing device 300, the tray is positioned at the height, and similarly when the disc is discharged from the disc storing device, the tray is positioned at the height. The reproducingdevice 200 can be positioned at the space formed betweentrays 301. - A
flat groove portion 305 c is formed in a range at every one pitch in each of thegrooves 305 a at the upper and lower portions and themiddle portion 305 b. Thus the tray is prevented from deviating from the position in the direction z even if the timing for stopping the rotation of the drivingshaft 305 deviates. - Since both sides of the engaging
projection 301 d of the tray is tapered as shown in FIG. 5c, the projection smoothly slides in thegroove 305 a of the drivingshaft 305. - FIG. 6 shows a mechanism for synchronously driving the four driving
shafts 305. Asynchronizing gear 307 is rotatable in thechassis 1, and provided to be rotated about a shaft around afulcrum 307 a. Thesynchronizing gear 307 is rotated by driving force of amotor 309 transmitted through atransmitting mechanism 308. Transmitting gears 310 are engaged with thesynchronizing gear 307 and each of the transmitting gears 310 is engaged with agear 305 d formed on the upper end of the drivingshaft 305. Accordingly, the rotation of thesynchronizing gear 306 is transmitting through each transmittedgear 310 to each drivingshaft 305, and hence the four drivingshafts 305 are rotated synchronously with one another in the same direction. - FIG. 7 is an enlarged view of the disc
edge holding mechanism 301 y of thetray 301 shown in FIG. 4. Adisc holding arm 311 is provided at a position adjacent thetray 301 so as to be rotated about ashaft 311 a. Thearm 311 is urged by acoil spring 312 in the arrow direction in the figure so that anend portion 311 b of thearm 311 pushes the outer edge of thedisc 302 to prevent the disc from deviating in the discharging direction by external force. - The
end portion 311 b engaged with the edge of thedisc 302 is positioned at a position outside a line connecting theshaft 311 a and the center of the disc (at the discharging direction side of the disc). Since the disposition provide a sufficient disc holding force even if thecoil spring 312 has a small elastic force, thedisc holding arm 311 can be reduced in size. - Referring to FIGS. 8a to 8 c showing the
disc holding mechanism 301 x of thetray 301 shown in FIG. 4, adisc holding member 312 is composed of a holdingportion 312 a and a supportingshaft 312 b. The holdingportion 312 a can be rotated about the supportingshaft 312 b. The supportingshaft 312 b is urged by acoil spring 313 in the arrow direction in FIG. 8b. Since the upper face of thedisc 302 carried toward thetray 301 is pressed by an end portion of the holdingportion 312 a, the disc is prevented from vibrating in the vertical direction due to external force. - As shown in FIG. 8c, in the case that a plurality of
trays 301 are stored, since the underside of the tray at the upper side pushes an end portion of thetray holding portion 312 a of the tray at the lower side, the urging force of thecoil spring 313 is released. However, since the holdingportion 312 a projects above the disc, the disc is not removed from the space. - FIGS. 9a and 9 b show the
disc carrying device 100. Amotor 104 and atransmitting mechanism 105 composed of a plurality of pinions are supported on the supportingchassis 103. The drivingroller 101 has apinion 101 a coaxially formed at an end thereof, and is rotatably supported on the supportingchassis 103 at anupright portion 103 a of the supportingchassis 103 and the other end is supported on the supportingchassis 103. Thepinion 101 a of the drivingroller 101 is engaged with the pinion of thetransmitting mechanism 105. Therefore, the driving force of themotor 104 is transmitted to the drivingroller 101. - A pair of
guide projections 103 b are projected from the left and right sides of the supportingchassis 103. The guide projections are guided in the direction x. - A
movable plate 106 is provided to form thedisc carrying passage 102 together with the drivingroller 101. Thedisc carrying passage 102 is formed so that the disc can be held by the drivingroller 101 and themovable plate 106. A protective cloth is attached on the underside of themovable plate 106 so that the disc is not scratched. Themovable plate 106 is supported by a guiding mechanism (not shown) so as to be movable in the direction z relative to the supportingchassis 103. Additionally, themovable plate 106 can be moved together with a clamping mechanism of thedisc reproducing device 200. - More specifically as shown in FIGS. 10a and 10 b, when the
turntable 201 is lowered, themovable plate 106 is located at a position where thedisc carrying passage 102 is formed in cooperation with the drivingroller 101 as shown in FIG. 10a. However, when theturntable 201 is raised and clamps thedisc 302, as shown in FIG. 10b, themovable plate 106 is also raised together with the turntable. Thus, the disc is prevented from touching themovable plate 106 at the time of the clamping of the disc. - A disc diameter determining sensor (not shown) is provided adjacent the driving
roller 101. The sensor determines whether an inserted disc is a large-diameter disc (12 cm CD) or a small-diameter disc (8 cm CD). - FIGS. 11a to 13 show a supporting chassis moving mechanism.
- A
cam gear 2 is rotatably supported by ashaft 2 a on the underside of thechassis 1. The cam gear is rotated by a motor (not shown) through atransmitting gear 3. Acam groove 2 b is formed in thecam gear 2 so that the distance from theshaft 2 a gradually increases. - A pair of
guide grooves 4 a each having an elongated shape in the direction x are formed at both side portions of aslider 4. A projection 1 a provided on the underside of the bottom of thechassis 1 is slidably engaged with each of theguide grooves 4 a. Moreoverprojection 4 b, which is provided on a middle portion of theslider 4, is slidably engaged with aguide groove 1 b formed in the bottom of thechassis 1 in the direction x. Thecam groove 2 b of thecam gear 2 is also slidably engaged with theprojection 4 b. - A pair of
upright portions 4 c are formed at opposite portions of theslider 4, and agroove hole 4 d is formed in each of theupright portions 4 c. A linear guide groove 1 e is formed in the direction x in eachside plate 1 d of thechassis 1. Each of theguide projections 103 b of the supportingchassis 103 is engaged with thegroove hole 4 d of theslider 4 and each guide groove 1 e of theside plate 1 d. - Thus, the movement of the
slider 4 is regulated in the direction x. Theslider 4 is moved in the direction x when theprojection 4 b is moved along thegroove 1 b by thecam groove 2 b due to the rotation of thecam gear 2. When theslider 4 is moved, theguide projections 103 b are moved in the direction x. Accordingly the supportingchassis 103 is moved in the direction x. As a result, thedisc carrying device 100 and thedisc reproducing device 200 held on the supportingchassis 103 are moved in the direction x. - FIG. 13 is a side view of the
disc reproducing device 200. As described above, thedisc reproducing device 200 clamps and unclamps the disc by raising and lowering theturntable 201, and thepickup 203 is also raised and lowered together with theturntable 201. Since thepickup 203 is lowered at a position near theturntable 201, there is aspace 204 in which a printed circuit board, a motor and others can be disposed in thespace 204. - The operation of the apparatus of the present invention will be described hereinafter.
- The operation for carrying the large-diameter disc (12 cm CD) is described with reference to FIGS.14 to 20 b. FIGS. 14 to 18 are plan views of the apparatus, and FIGS. 19 and 20 are side views.
- The operation for inserting the disc from the outside of the apparatus and carrying the disc to the
disc storing device 300 is first described. As shown in FIGS. 14 and 19a, the drivingroller 101 is in a waiting state at the insertion starting position. When a user inserts the disc into the disc insertion opening of the front of the apparatus, a sensor detects insertion of the disc, and the drivingroller 101 is rotated in the disc carrying direction. The disc is accordingly moved into the apparatus. - During the moving of the disc, the diameter determining sensor determines the diameter of the disc (12 cm CD). Thereafter the driving
roller 101 is stopped. FIGS. 15 and 19b show the state where the drivingroller 101 is stopped. At that time, the disc is held by the drivingroller 101 and themovable plate 106. - Next, the supporting chassis moving mechanism is driven and the driving
roller 101 and thedisc reproducing device 200 are moved to thedisc storing device 300. As shown in FIG. 16 and 19 c, when the disc is held on thetray 301, the supporting chassis moving mechanism is stopped and the drivingroller 101 reaches the disc storing position.Reference numeral 10 designates an erectable stopping member. Themember 10 is laid when the supportingchassis 103 is at the disc insertion opening side. When the supportingchassis 103 is moved to thedisc storing device 300, themember 10 is stood, thereby preventing an erroneous insertion of a new disc. A pair ofdisc stoppers 10 a are provided on themember 10. The disc stoppers are provided for positioning the center of the disc at the center of the turntable when reproducing. - Thereafter, the driving
roller 101 is moved back to the disc insertion opening by driving the supporting chassis moving mechanism, while the driving roller is rotated in the disc inserting direction. At that time, since the disc is pushed to the tray due to the rotating of the drivingroller 101, only the drivingroller 101 is moved back, leaving the disc on thetray 301. As shown in FIGS. 18 and 19d, when the drivingroller 101 is moved back to the insertion starting position, the movement of the supportingchassis 103 is stopped. Thus, the operation of carrying the disc inserted from the outside of the apparatus to the disc storing device is completed. - The operation of the reproducing of the disc inserted from the outside of the apparatus is described. Since the operation from the inserting of the disc to holding the disc on the
tray 301, is the same as the above described operation, shown in FIGS. 16 and 19c, description of it is omitted. - After the holding of the disc on the tray, the driving
roller 101 is rotated in the disc discharging direction, while the supportingchassis 103 is stopped. Therefore, only the disc is moved back to the insertion opening. - When the disc contacts with
disc stoppers 10 a of the erected stoppingmember 10, as shown in FIGS. 17 and 20a, the center of the disc coincides with the center of theturntable 201. Subsequently, the clamping operation shown in FIG. 10 is performed and the disc is reproduced. - Next, the operation of discharging the disc stored in the
disc storing device 300 outside the apparatus is described. As shown in FIG. 18, the drivingroller 101 is positioned at the insertion starting position. From this state, the drivingroller 101 is moved to thedisc storing device 300 by driving the supporting chassis moving mechanism, while rotating the drivingroller 101 in the discharging direction. As shown in FIG. 16, when the drivingroller 101 reaches the disc storing position and grips the disc, the driving of the supporting chassis moving mechanism and the rotating of the drivingroller 101 are stopped. - Then the driving
roller 101 is moved back to the disc insertion opening by driving the supporting chassis moving mechanism without rotating the drivingroller 101. When the drivingroller 101 reaches the insertion starting position as shown in FIG. 15, the driving of the supporting chassis moving mechanism is stopped. Subsequently, the drivingroller 101 is rotated in the disc discharging direction. Then the disc is discharged from the apparatus. - The operation for reproducing the disc stored in the
disc storing device 300 is described. In the operation, the operation for moving the drivingroller 101 from the insertion starting position to the disc storing position is the same as the operation for discharging the disc stored in thedisc storing device 300. - The driving
roller 101 is rotated in the disc discharging direction, while the supporting chassis moving mechanism is kept stationary. In the operation, the drivingroller 101 is not moved, and hence only the disc is moved back toward the insertion opening. - When the disc contacts with
disc stoppers 10 a of themember 10, as shown in FIGS. 17 and 20a, the center of the disc coincides with the center of theturntable 201. The clamping operation shown in FIG. 10 is performed and the disc is reproduced. - The operation for discharging the disc from the turntable is described. The disc is released from the
clamper 202. The drivingroller 101 is rotated in the disc insertion direction, and as shown in FIG. 16 the disc is temporarily stored in thedisc storing device 300, and the drivingroller 101 is stopped. - The driving roller is moved back to the disc insertion opening side by driving the supporting chassis moving mechanism without rotating the driving
roller 101. When the drivingroller 101 reaches the insertion starting position as shown in FIG. 15, the supporting chassis moving mechanism is stopped. The drivingroller 101 is rotated in the disc discharging direction, thereby discharging the disc from the apparatus. - The operation for storing the disc which has been reproduced into the
disc storing device 300 is described. The disc is released from theclamper 202. The drivingroller 101 is rotated in the disc inserting direction, and as shown in FIG. 16 the disc is stored in thedisc storing device 300, and the drivingroller 101 is stopped. - Thereafter, the driving roller is moved back to the disc insertion opening side by driving the supporting chassis moving mechanism, while the driving
roller 101 is rotated in the disc inserting direction. Since the disc is pressed against thetray 301, only the drivingroller 101 is moved back, leaving the disc on thetray 301. As shown in FIG. 18, when the drivingroller 101 is moved back to the insertion starting position, movement of the drivingroller 101 is stopped. - The small-diameter disc (8 cm CD) cannot be stored in the
disc storing device 300. However the disc can be directly reproduced by inserting it from the outside of the apparatus. The operation is described with reference to FIGS. 21 to 27. - As shown in FIG. 21, the driving
roller 101 is in the waiting state at the insertion starting position. When a user inserts asmall disc 302 a in the disc insertion opening of the front of the apparatus, the sensor detects insertion of the disc, and the drivingroller 101 is rotated in the disc inserting direction to carrying the disc. - When the sensor determines that the disc is the 8 cm CD, the driving
roller 101 is stopped at a position corresponding to thedetermined disc 302 a. FIGS. 22 and 26a show the state where the drivingroller 101 is stopped. Since the diameter of thedisc 302 a is shorter than the width of the disc insertion opening, the disc is scarcely positioned at the center of the insertion opening, as shown in FIG. 22. - The supporting chassis moving mechanism is driven and the driving
roller 101 and thedisc reproducing device 200 are moved to thedisc storing device 300. As shown in FIGS. 23 and 26b, when the drivingroller 101 reaches the disc storing position where the large disc is held on thetray 301, the supporting chassis moving mechanism is stopped. - As shown in FIGS. 24 and 26c, the disc is moved back to the insertion opening by turning the driving
roller 101 in the disc discharging direction. At that time, the disc is positioned at the center by being brought into contact withdisc stoppers 10 a of theerectable member 10. - Thereafter, as shown in FIGS. 25 and 27a, the disc is positioned on the
turntable 201 by turning the drivingroller 101 by the predetermined number of rotations in the disc inserting direction. - As shown in FIG. 27b, the clamping operation is performed and the disc is reproduced. After the reproduction and the releasing of the disc, the driving
roller 101 is moved to the insertion starting position by driving the supporting chassis driving mechanism. The disc is discharged from the apparatus by rotating the drivingroller 101 in the discharging direction. - Although the above described embodiment of the present invention is provided for storing a plurality of disc, the present invention may be applied to a device for reproducing a single disc.
- In the apparatus of the present invention, there is not provided disc pulling out arms and a disc discharging arm. Therefore, the apparatus is simple in construction and can be manufactured at a low cost.
- While the invention has been described in conjunction with preferred specific embodiment thereof, it will be understood that this description is intended to illustrate and not limit the scope of the invention, which is defined by the following claims.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10-072910 | 1998-03-20 | ||
JP07291098A JP3818612B2 (en) | 1998-03-20 | 1998-03-20 | Disc player |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010043552A1 true US20010043552A1 (en) | 2001-11-22 |
US6373795B2 US6373795B2 (en) | 2002-04-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/272,099 Expired - Fee Related US6373795B2 (en) | 1998-03-20 | 1999-03-19 | Apparatus for reproducing an optical disc |
Country Status (4)
Country | Link |
---|---|
US (1) | US6373795B2 (en) |
EP (1) | EP0944069B1 (en) |
JP (1) | JP3818612B2 (en) |
DE (1) | DE69933605T8 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050232093A1 (en) * | 2004-04-16 | 2005-10-20 | Mitsubishi Denki Kabushiki Kaisha | Disk apparatus |
US6996835B1 (en) * | 2000-09-20 | 2006-02-07 | Mitsubishi Denki Kabushiki Kaisha | Disk device |
US7840973B2 (en) | 2005-01-20 | 2010-11-23 | Panasonic Corporation | Optical disc device having improved disc detection |
US7844980B2 (en) | 2005-01-20 | 2010-11-30 | Panasonic Corporation | Optical disc device having reduced striking sound |
US10210897B1 (en) * | 2017-09-25 | 2019-02-19 | Lite-On Technology Corporation | Disk pick-and-place device and operation method thereof |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60035256T2 (en) * | 1999-09-28 | 2008-03-06 | Sony Corp. | PLATE RECORDING AND / OR PLAYBACK DEVICE |
JP3978949B2 (en) * | 1999-09-29 | 2007-09-19 | ソニー株式会社 | Disc recording and / or playback device |
JP4048951B2 (en) * | 2000-09-20 | 2008-02-20 | 三菱電機株式会社 | Disk unit |
WO2002025652A1 (en) * | 2000-09-20 | 2002-03-28 | Mitsubishi Denki Kabushiki Kaisha | Disk device |
JP3841723B2 (en) | 2002-05-24 | 2006-11-01 | パイオニア株式会社 | Information recording medium transport device |
TW560668U (en) * | 2002-05-24 | 2003-11-01 | Lite On It Corp | Disk sensing structure of suck-in type optical disk driver |
JP3906114B2 (en) * | 2002-06-10 | 2007-04-18 | 富士通テン株式会社 | Disc player |
EP1612785B1 (en) | 2003-03-31 | 2011-11-23 | CLARION Co., Ltd. | Disk device, disk-transporting device, and disk-loading device |
JP2005044444A (en) * | 2003-07-22 | 2005-02-17 | Sony Corp | Disk recording and/or reproducing device |
US20070201320A1 (en) * | 2004-03-25 | 2007-08-30 | Toru Suzuki | Recording Medium Playback Device |
JPWO2005098849A1 (en) * | 2004-03-31 | 2008-03-06 | パイオニア株式会社 | Recording medium playback device |
EP1755120A4 (en) * | 2004-05-17 | 2009-03-11 | Panasonic Corp | Optical disk device |
JPWO2006009116A1 (en) * | 2004-07-23 | 2008-07-31 | パイオニア株式会社 | Information recording medium reproducing device |
WO2006095681A1 (en) * | 2005-03-09 | 2006-09-14 | Pioneer Corporation | Recording medium reproduction device |
JPWO2007144941A1 (en) * | 2006-06-13 | 2009-10-29 | パイオニア株式会社 | Power transmission mechanism |
US8266642B2 (en) * | 2009-01-06 | 2012-09-11 | Hitachi-Lg Data Storage, Inc. | Optical disk mechanism with shaped roller and double beam mount |
Family Cites Families (6)
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US4561078A (en) * | 1982-08-11 | 1985-12-24 | U.S. Philips Corporation | Disc changer and disc holder and box for use with such a changer |
DE4008006A1 (en) * | 1989-03-13 | 1990-10-04 | Pioneer Electronic Corp | DISK PLAYER |
US5119354A (en) | 1989-04-06 | 1992-06-02 | Matsushita Electric Industrial Co., Ltd. | Disk reproducing apparatus |
JP3289959B2 (en) * | 1992-08-10 | 2002-06-10 | クラリオン株式会社 | Disk unit |
DE19725169B4 (en) * | 1996-06-13 | 2011-01-27 | Fujitsu Ten Ltd., Kobe-shi | Disc-shaped record carrier reproducing apparatus |
JP3001810B2 (en) * | 1996-06-13 | 2000-01-24 | 富士通テン株式会社 | Record carrier reproduction / recording device |
-
1998
- 1998-03-20 JP JP07291098A patent/JP3818612B2/en not_active Expired - Fee Related
-
1999
- 1999-03-19 EP EP99105666A patent/EP0944069B1/en not_active Expired - Lifetime
- 1999-03-19 DE DE69933605T patent/DE69933605T8/en not_active Expired - Fee Related
- 1999-03-19 US US09/272,099 patent/US6373795B2/en not_active Expired - Fee Related
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6996835B1 (en) * | 2000-09-20 | 2006-02-07 | Mitsubishi Denki Kabushiki Kaisha | Disk device |
US20050232093A1 (en) * | 2004-04-16 | 2005-10-20 | Mitsubishi Denki Kabushiki Kaisha | Disk apparatus |
US7406006B2 (en) * | 2004-04-16 | 2008-07-29 | Mitsubishi Denki Kabushiki Kaisha | Disk apparatus |
US7840973B2 (en) | 2005-01-20 | 2010-11-23 | Panasonic Corporation | Optical disc device having improved disc detection |
US7844980B2 (en) | 2005-01-20 | 2010-11-30 | Panasonic Corporation | Optical disc device having reduced striking sound |
US10210897B1 (en) * | 2017-09-25 | 2019-02-19 | Lite-On Technology Corporation | Disk pick-and-place device and operation method thereof |
US10388317B2 (en) | 2017-09-25 | 2019-08-20 | Lite-On Technology Corporation | Disk pick-and-place device and operating method thereof |
US10388316B2 (en) | 2017-09-25 | 2019-08-20 | Lite-On Technology Corporation | Operating method of disk pick-and-place device |
Also Published As
Publication number | Publication date |
---|---|
EP0944069B1 (en) | 2006-10-18 |
JP3818612B2 (en) | 2006-09-06 |
DE69933605T2 (en) | 2007-08-23 |
JPH11273208A (en) | 1999-10-08 |
DE69933605T8 (en) | 2007-11-22 |
DE69933605D1 (en) | 2006-11-30 |
US6373795B2 (en) | 2002-04-16 |
EP0944069A1 (en) | 1999-09-22 |
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