JP4149354B2 - Recording medium drive device - Google Patents

Description

  The present invention relates to a recording medium drive apparatus that mechanically drives a recording medium for recording information to reproduce or record information.

  2. Description of the Related Art Conventionally, a recording medium drive apparatus has been used in which a recording medium on which information is recorded at a high density is mechanically moved to move a head for recording and reproducing information to different recording positions. In a hard disk device, information is recorded and reproduced by rotating a disk-shaped magnetic recording medium and bringing a magnetic head close to the surface. In a compact disc (CD), a digital versatile disc (DVD), and the like, a disc-shaped recording medium for optically recording information is detachable. Although CD and DVD have a uniform outer diameter of 12 cm and 8 cm, the recording density is different. A mini-disc (MD) using both magnetism and light is used in a state where a disc-shaped recording medium is housed in a plate-shaped cartridge case. Magnetic tape is also often used in a state of being housed in a plate-like cartridge case.

  For example, audio / video devices mounted on vehicles such as automobiles conventionally include a deck as a recording medium drive device that uses a removable recording medium such as a CD, DVD, MD, or cassette magnetic tape. Yes. In a deck that uses a removable recording medium for in-vehicle use, sufficient space and time cannot be secured for attaching / detaching the recording medium. For example, the recording medium is simply inserted into and discharged from the insertion / extraction port on the front of the deck. Thus, automatic insertion and ejection operations need to be performed inside the deck. When the recording medium is moved inside the deck, if the mounting angle of the deck with respect to the vehicle is inclined, the recording medium is easily affected by gravity. The influence of gravity is not only when the recording medium is moved, but also when the recording medium is driven to reproduce or record information with the head. Conventionally, the mounting angle of the deck with respect to the vehicle is specified in the specification, and within that angle The operation should be guaranteed.

  In a vehicle-mounted device such as a CD player, a configuration in which the mechanism portion is supported by an elastic member in the case and the tilt angle of the case is detected by a sensor so that the mechanism portion is supported by the elastic member in a constant posture It has been proposed (see, for example, Patent Document 1). In patent document 1, it supports with the elastic member so that the vibration applied from a motor vehicle may not be directly transmitted to a mechanism part. When the mounting angle of the case is different by 90 °, the end of the elastic member is rotated in accordance with the inclination so that the action of the elastic member that blocks external vibration is not impaired.

Japanese Patent Laid-Open No. 5-8695

  In recent years, the requirement for the mounting angle of an in-vehicle audio device has been changed in conjunction with the space available in the vehicle interior and the downsizing of the deck. In particular, a deck mounted near the driver's seat is often mounted on a portion called an instrument panel or dashboard below the windshield so as not to obstruct the driver's front view. When attaching to such a lower part, it is easier to operate and use the space better than the horizontal posture where the front and back are at the same height, and the front and back are inclined so that the back is lower. Is preferable.

  When the deck is inclined so that the front is high, when the recording medium is inserted from the front into the inside, the recording medium is inserted in the forward direction with respect to the gravity, and the recording medium is discharged in the reverse direction with respect to the gravity. If the deck mounting angle is out of the guaranteed range, the recording medium insertion / extraction mechanism cannot obtain sufficient driving force from a driving source such as a motor due to the influence of gravity, which may cause problems such as poor insertion / extraction. There is a possibility of connection.

  It is not only the recording medium insertion / extraction mechanism that is affected by gravity. The disk-shaped recording medium must be driven to rotate at high speed around the axis, and the head must be brought close to the surface. Although the head is light and not easily affected by gravity, if the information recording density of the recording medium increases, a slight deviation due to the influence of gravity will lead to recording and reproduction defects.

  An object of the present invention is to provide a recording medium drive device that can reduce the influence of gravity on the operation even when the mounting posture is inclined.

The present invention relates to a recording medium drive device for reproducing and recording information.
The recording medium is a detachable disk-shaped recording medium,
An insertion / extraction mechanism including an insertion / extraction motor for inserting and ejecting the recording medium from the outside,
A posture detecting means for detecting a mounting posture of the recording medium drive device in a state in which a housing of the device is attached to an attached body ;
Look including the handling drive means for driving the handling operation of the recording medium in accordance with the posture detected by the posture detection means,
The handling drive means is adapted to the detected orientation so that insertion and ejection of the recording medium from the outside and to the outside are at a constant insertion / ejection speed regardless of the orientation detected by the orientation detection means. The recording medium drive apparatus corrects the driving force of the insertion / extraction motor .

The present invention further includes a head means for reproducing or recording of information for the recording medium,
The handling driving unit corrects the driving force according to the posture so that the predetermined operation of the head unit is performed at a constant speed regardless of the posture detected by the posture detecting unit.

In the present invention, the recording medium is an optical disk,
The head means reproduces and records information along a circumferential track preset on the optical disc,
The handling driving means corrects so as to have a constant jump force regardless of the attitude detected by the attitude detecting means at the time of a track jump operation in which the head means is moved over an adjacent track on the optical disc. It is characterized by that.

In the present invention, the recording medium is an optical disk,
The head means is capable of a focus search for focusing the optical system on the information recording layer of the optical disc and a focus jump operation for changing the focus between a plurality of information recording layers.
The handling driving unit corrects the handling drive unit to perform a constant operation regardless of the posture detected by the posture detection unit during the focus search or the focus jump operation.

In the present invention, the recording medium can use a plurality of types,
The handling driving unit performs the correction so that the operation is constant regardless of the type of the recording medium.

  In the present invention, the handling drive unit performs the drive under servo control using a DSP, and corrects the driving force according to the posture by correcting a coefficient related to the characteristics of the servo control. To do.

  According to the present invention, the handling driving means corrects the driving force according to the posture by correcting the power supplied to the actuator that performs the driving.

  According to the present invention, even if the mounting posture is inclined, the handling operation according to the posture can be performed, so that the influence of gravity on the operation can be corrected to be small.

The recording medium is a detachable disc-shaped recording medium. An insertion / extraction mechanism including an insertion / extraction motor for inserting and ejecting the recording medium from the outside is detected , and the mounting posture is detected to allow the recording medium to be inserted from the outside and discharged to the outside regardless of the posture. Since the driving force of the insertion / extraction motor is corrected so as to achieve a constant insertion / extraction speed, a sense of incongruity can be prevented.

  According to the present invention, the predetermined operation of the head means performed on the detachable recording medium corrects the driving force according to the posture so as to be performed at a constant speed. It is possible to prevent a sense of incongruity due to the direction of the operation from occurring even if the operation is received.

  According to the present invention, during the track jump operation in which the head unit is moved over the adjacent track on the optical disk, the jump force is corrected so as to be constant regardless of the posture detected by the posture detection unit. It is possible to reduce the influence of inclination or the like on the access to the information recorded in the position, and to correct the movement so that no directionality occurs.

  According to the present invention, the focus search and the focus jump are corrected so that the movement is constant regardless of the posture, so that the influence of gravity on the focus search and the focus jump can be reduced.

  According to the present invention, when the handling drive means handles a plurality of types of recording media, the handling driving means performs correction so that the operation is constant regardless of the type, so that different types of recording media regardless of the size and weight. Can be handled as well.

  According to the present invention, the correction according to the attitude of the driving force of the operation in which the handling driving means handles the recording medium is performed by changing the responsiveness by correcting the coefficient related to the characteristics such as the gain and phase of the servo control. Can do.

  According to the present invention, the operation in which the handling drive unit handles the recording medium is performed by correcting the electric power supplied to the driving actuator according to the posture, so that the direction of gravity is different from the direction of the driving force. Thus, the number of driving operations can be increased or decreased, and a recording medium handling operation that is not easily affected by gravity can be performed.

  FIG. 1 shows a schematic installation state of a deck device 1 according to an embodiment of the present invention. The deck device 1 is an in-vehicle audio / visual (AV) device or navigation device that is mounted and operated in a car, and a mechanism portion and a control portion that controls and drives the mechanism portion in a case 2 that conforms to a certain standard. Is stored. An input / output part for operation and display is provided on the front surface of the housing 2, and an insertion / extraction unit 3 is also provided. A recording medium 4 such as a CD or a DVD can be inserted into the housing 2 from the insertion / extraction unit 3. Further, the recording medium 4 ejected from the inside of the housing 2 can be taken out from the insertion / ejection unit 3. A gyro sensor 5 and a deck mechanism 6 are also provided inside the housing 2. The gyro sensor 5 detects an inclination angle θ with respect to the horizontal plane of the housing 2 attached to the automobile. The deck mechanism 6 transports the recording medium 4 to be inserted / extracted from the insertion / extraction section 3 inside the housing 2 and rotationally drives the recording medium 4 to reproduce and record information. The deck device 1 is mounted in places such as the front window 8 in front of the driver's seat of the vehicle body 7 and the dashboard 10 below the steering wheel 9.

  When the casing 2 of the deck device 1 is attached to the vehicle body 7, it is preferable in terms of operability and effective use of space to tilt the casing 2 at an angle θ with respect to the horizontal plane. However, if the deck mechanism 6 is inclined at an angle θ, for example, the insertion of the recording medium 4 is in the forward direction with respect to the gravity, but the ejection of the recording medium 4 is in the opposite direction with respect to the gravity. There may be a speed difference in the operation. Further, in the deck mechanism 6, when the inserted recording medium 4 is mounted on the turntable and rotated at a high speed, the pickup is brought close to the surface of the recording medium 4, and when information is reproduced or recorded optically, There is a possibility that the movement of the pickup may be affected by gravity. If the deck device 1 can be attached to the vehicle body 7 with the housing 2 in a horizontal posture, the gravity acts equally on the movement of the recording medium 4 in and out, and the movement of the pickup in the horizontal plane also affects the gravity. However, when these movements are performed in a plane inclined by an angle θ with respect to the horizontal plane, when the acceleration of gravity is g, the force corresponding to g × sin θ depends on the direction. Will come to work. The deck device 1 may be mounted vertically such that θ = 90 ° or inclined in the width direction even when θ = 0 ° is generally horizontal.

  FIG. 2 shows a schematic electrical configuration of the deck device 1 of FIG. The overall control of the deck device 1 is performed by the microcomputer 11. Control of the operation relating to the handling of the recording medium 4 is performed by amplifying the power of a signal processing result by a DSP (Digital Signal Processor) 12 by a driver IC 13, and an actuator including an insertion / extraction motor 14, a pickup feed motor 15 and a pickup lens coil 16. To drive. The DSP 12 has an architecture specialized for performing signal processing at high speed, and operates according to a preset program. The program operation of the DSP 12 includes a portion whose operation content can be changed according to data given from the outside as a coefficient. The gyro sensor 5 detects the angular displacement and derives an output corresponding to the detected angular displacement amount. The microcomputer 11 inputs the angular displacement detected by the gyro sensor 5 as a tilt angle in accordance with a preset program, and gives a coefficient set in advance corresponding to the tilt angle to the DSP 12.

  FIG. 3 shows the configuration of the DSP 12 of FIG. 2 in more detail. The functions of the DSP 12 can be divided into a tracking equalizer unit 12a, a focus equalizer unit 12b, and a thread equalizer unit 12c. The tracking equalizer unit 12a performs servo control so that the focal position of the pickup follows the circumferential track in which information is recorded on the recording medium 4. The focus equalizer unit 12 b performs servo control so that the pickup is focused on the information recording surface of the recording medium 4. The thread equalizer unit 12 c performs servo control for displacing the pickup position in the radial direction of the recording medium 4. Regarding the insertion / extraction of the recording medium 4, the microcomputer 12 directly gives a signal to the driver IC 13d. Outputs from the tracking equalizer unit 12a, the focus equalizer unit 12b, and the thread equalizer unit 12c are the pickup IC coil 16a for tracking and the pickup for focusing that constitute the pickup lens coil 16 via the driver ICs 13a, 13b, and 13c, respectively. The actuator coil 16b and the pickup feed motor 15 are provided. The output from the driver IC 13d is given to the insertion / extraction motor 14.

  Since the tracking equalizer unit 12a, the focus equalizer unit 12b, and the thread equalizer unit 12c are basically the same in configuration, the tracking equalizer unit 12a will be described. The tracking equalizer unit 12 a includes an input stage amplifier 21, amplifiers 22 and 23, adders 24, 25, 26 and 27, a high-pass filter 28, a low-pass filter 29, and an output stage amplifier 30. It is equivalently realized by signal processing. The input stage amplifier 21 receives a tracking error signal corresponding to the tracking deviation from the light receiving element of the pickup, and the amplified output is added to the tracking bias by the adder 24. The output of the adder 24 is added to the output of the amplifier 22 that amplifies the kick signal by the adder 25 and is also input to the low-pass filter 29. The output of the adder 25 is input to the high pass filter 28. The kick signal is a signal for moving the pickup in the tracking direction, and is given to the amplifier 23 together with the amplifier 22. The output of the amplifier 23 is added to the output of the low-pass filter 29 by the adder 26, and the output of the adder 26 is added to the output from the high-pass filter 28 by the adder 27. The output of the adder 27 is derived from the output stage amplifier 30 to the outside as a lens drive signal and input to the driver IC 13a.

  The characteristics of the high-pass filter 28 and the low-pass filter 29 affect the responsiveness of servo control of the tracking equalizer unit 12a, and are determined by coefficient data set by the microcomputer 12 in FIG. The microcomputer 12 switches the coefficient data according to the inclination angle in the track direction detected by the gyro sensor 5. The coefficient data is a value that differs depending on whether the track direction is forward or reverse with respect to the direction of gravity, and the driving force applied to the pickup is corrected so that the movement according to the direction is constant. Adjust so that

  Since the optical disc has a plurality of tracks in which information is recorded in the radial direction, the pickup not only reproduces and records information along a circumferential track preset in the optical disc, but also the optical disc. It also has a track jump function that moves the pickup over the adjacent tracks. When the deck device 1 is mounted in a vertical posture or the like, gravity is applied to the pickup in a direction different from the horizontal state at the time of jumping, which may affect these operations. The tracking equalizer unit 12a corrects the kick force, which is the driving force when starting the jump according to the mounting posture, the braking force when stopping the jump, or their time during the track jump, so that the horizontal state It is possible to realize a stable tracking jump that does not change.

  That is, with respect to the optical disk as the recording medium 4, the pickup as the head means reproduces and records information along a preset circumferential track. The tracking equalizer unit 12a serving as a handling drive unit performs a constant jump regardless of the posture detected by the gyro sensor 5 which is a posture detection unit during a track jump operation in which the head unit is moved over an adjacent track on the optical disc. Correct to become force. Since the movement of the pickup that performs the track jump operation is corrected so as not to be affected by the gravity, the influence of the inclination to the access to the information recorded at a remote position is reduced, and the direction of the operation does not occur. Can be corrected as follows.

  The focus equalizer unit 12b has a configuration equivalent to that of the tracking equalizer unit 12b, but has a function of performing focus adjustment by servo control on the optical disk that is the recording medium 4. The focus adjustment is performed as a focus search operation performed based on a focus error signal output from the pickup so that the beam from the laser light source provided in the pickup forms a focal point on the information recording surface of the optical disc. A DVD having a plurality of information recording surfaces is used, and it is necessary to provide a focus jump function for switching the focal position between the information recording surfaces.

  In other words, the pickup as the head means can perform a focus search for focusing the optical system on the information recording layer of the optical disc and a focus jump operation for changing the focus between a plurality of information recording layers, and a focus equalizer as a handling drive means. The unit 12b changes the coefficient data given to the focus equalizer unit 12b so that the microcomputer 11 performs a constant operation regardless of the attitude detected by the gyro sensor 5 during the focus search or focus jump operation, and the deck device The lens driving force and driving time generated from the pickup actuator coil 16b for focus adjustment are controlled via the driver IC 13b so that the operation is constant regardless of the mounting posture of 1.

  When the deck device 1 is mounted in a vertical orientation, gravity is applied to the objective lens of the pickup during a focus search or focus jump in a direction different from the horizontal state, which may affect these operations. Occurs. By correcting the driving force and driving time for the objective lens according to the mounting posture, it is possible to realize a stable focus search and focus jump operation that does not change from the horizontal state.

  The thread equalizer unit 12c also drives the pickup feed motor 15 by servo control with correction based on the same posture.

  As described above, in the deck device 1 of FIG. 1, the recording medium 4 is detachable, and a pickup as a head unit for reproducing and recording information on the recording medium 4 is included. The DSP 12 in FIG. 2 corrects the driving force according to the posture so that the predetermined operation of the pickup is performed at a constant speed regardless of the posture detected by the gyro sensor 5 as the posture detecting means as the handling driving means. To do. In the servo control using the DSP 12, the driving force is corrected according to the posture by correcting coefficients related to characteristics such as servo control gain and phase.

  When the deck device 1 is installed in a vertical orientation, gravity is always applied to the objective lens in a direction different from the horizontal state during reproduction, which may affect playability performance such as vibration resistance and scratches. Occurs. Since the servo control characteristics are corrected according to the mounting posture, playability performance can be ensured. That is, the servo control response can be changed by correcting the coefficient related to the characteristics such as the gain and phase of the servo control, and the operation corresponding to the posture can be performed.

  The recording medium 4 is detachable, and a pickup which is a head means for reproducing and recording information needs to perform an operation corresponding to the detachment of the recording medium 4. For example, when the recording medium 4 is inserted, an operation of chucking on the turntable is required. When the recording medium 4 is ejected, it is necessary to remove the recording medium 4 from the tar table. Further, when the recording medium 4 is attached to or detached from the turntable, the pickup needs to be retreated to a position away from the recording medium 4. When reproducing or recording information on the recording medium 4, it is necessary to bring the pickup close to the recording medium 4. Among these pickup operations, the predetermined operation is performed by correcting the driving force in accordance with the posture so as to be performed at a constant speed regardless of the posture detected by the gyro sensor 5 as the posture detecting means. Even if the posture is tilted and affected by gravity, the direction of motion can be reduced by correcting the driving force so that a sense of incongruity does not occur.

  FIG. 4 shows a schematic control procedure of the microcomputer for correcting the servo control by the DSP 12 according to the tilt angle detected by the gyro sensor 5. For example, the procedure starts from step a0 when the power is turned on or at regular intervals such as a timer interruption. In step a1, it is determined whether or not the deck device 1 is handling a recording medium such as during playback of the recording medium 4. to decide. If it is being handled, the mounting posture of the deck device 1 is determined in accordance with a signal from the gyro sensor 5 in step a2. If not, the process proceeds to step a4. In the next step a3, the gain and phase coefficients of various servo systems are corrected and given to the DSP 12 so as to obtain a constant reproduction state regardless of the mounting position of the deck device 1, and the servo characteristics are corrected. In step a4, it is determined whether or not it is necessary to stop the operation, for example, by shutting off the power. If the operation is not stopped, the process returns to step a1. If the operation is stopped, the control procedure is terminated at step a5.

  As shown in FIG. 1, the recording medium 4 can be attached to and detached from the deck device 1, and can be taken out from the insertion / extraction unit 3 or inserted into the insertion / extraction unit 3 from the outside. Between the insertion / extraction unit 3 and the deck mechanism 6, an insertion / extraction mechanism for the recording medium 4 by the insertion / extraction motor 14 shown in FIG. As shown in FIG. 3, the insertion / extraction motor 14 is driven by the output from the driver IC 13 d based on the drive signal from the microcomputer 11. When the deck device 1 is mounted in a posture other than horizontal in the vehicle, particularly when the insertion / extraction part 3 that is the insertion port of the recording medium 4 is directed upward or downward, the ejection speed is slowed down and conversely downwards. It becomes too fast and may give the user a sense of incongruity in operation. The microcomputer 11 serving as the handling drive means inserts and ejects the recording medium 4 from the outside to the outside at a constant insertion / extraction speed regardless of the attitude detected by the gyro sensor 5 serving as the attitude detection means. The driving force is corrected according to the posture. The driving force is corrected by changing the voltage applied to the driver IC 13d for insertion / extraction. Since such insertion / extraction control according to the mounting posture is performed, the uncomfortable feeling given to the user can be eliminated.

  FIG. 5 shows a schematic control procedure of the insertion / extraction speed by the microcomputer 11. For example, the procedure is started from step b0 at regular intervals such as when the power is turned on or a timer interrupt is performed. In step b1, it is determined whether or not the deck device 1 is inserting / removing the recording medium 4. If it is during insertion / ejection, the mounting posture of the deck device 1 is determined in accordance with a signal from the gyro sensor 5 in step b2. If not, the process proceeds to step b4. In the next step b3, the voltage applied to the driver IC 13d is changed so that the insertion / ejection speed is constant regardless of the mounting posture of the deck device 1. In step b4, it is determined whether or not it is necessary to stop the operation, for example, by shutting off the power. If the operation is not stopped, the process returns to step b1. If the operation is stopped, the control procedure is terminated in step b5. Note that the insertion / extraction operation of the recording medium 4 is performed as an interruption operation based on detection of an operation from the user of the deck device 1. You may make it perform the procedure after step b2 during such insertion / extraction operation | movement.

  Thus, the microcomputer 11 as the handling drive means can also correct the driving force in accordance with the posture by correcting the power supplied to the actuator that performs driving. Even in the correction of operations such as tracking and focusing, the driving force can be corrected by changing the voltage applied to the drive ICs 13a and 13b. In addition, servo control is used for insertion / extraction drive control, and correction according to the attitude of the drive force of the operation in which the DSP 12 handling drive unit handles the recording medium is performed by correcting the electric power supplied to the actuator to be driven. If the power is increased for driving in the direction against gravity, and the power is decreased for driving in the direction following gravity, the recording medium can be handled less susceptible to the influence of gravity.

  The handling drive means by the microcomputer 11 and the DSP 12 performs various corrections so that the operation is constant regardless of the type of the recording medium 4. The CD or DVD recording medium 4 includes a standard recording medium having a diameter of 120 mm and a single recording medium having a diameter of 80 mm. The size of the recording medium 4 corresponds to the weight, and the influence of gravity is different. If the insertion / extraction operation is corrected depending on the difference in the recording medium 4, a stable insertion / extraction operation is possible, and the quality of the deck device 1 can be ensured. Furthermore, although the recording format and density of information are different for each type of recording medium 4 such as CD or DVD, it can be appropriately corrected by correcting the coefficient data given from the microcomputer 11 to the DSP 12. . Further, although there are DVDs of one layer and two layers, DVDs can be appropriately corrected by correcting coefficient data given from the microcomputer 11 to the DSP 12.

  In the above description, the in-vehicle deck device 1 is targeted, but even a general recording medium drive device that is not for in-vehicle use mechanically drives the recording medium 4 to reproduce and record information. As long as the idea of the present invention is applicable as well. For example, in the case of home use or office use, once installed, the installation posture will hardly change. For example, during installation work, the person in charge of the work will activate the correction coefficient setting function. The coefficient data can be prepared in advance. During normal operation, the inclination may be detected and the operation may be corrected using a coefficient corresponding to the inclination. Even if the recording medium is not detachable like a hard disk device, if the driving for moving the head is corrected according to the direction so as not to be affected by gravity, the recording density is increased. In addition, the operation can be corrected according to the posture, and appropriate information can be recorded and reproduced. Also, in portable information processing devices such as notebook personal computers, the posture to be used always changes, so that the operations of the CD and DVD deck units and the hard disk device should be corrected according to the posture change. Thus, the reliability of the operation can be ensured and the information recording can be made dense.

It is side surface sectional drawing which shows the schematic installation state of the deck apparatus 1 which is one Embodiment of this invention. FIG. 2 is a block diagram illustrating a schematic electrical configuration of the deck device 1 of FIG. 1. It is a block diagram which shows the structure of DSP12 of FIG. 2 in detail. 3 is a flowchart showing a schematic control procedure of a microcomputer that corrects servo control by the DSP 12 of FIG. 2 according to an inclination angle detected by a gyro sensor 5; It is a flowchart which shows the rough control procedure of the insertion / extraction speed by the microcomputer 11 of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Deck apparatus 2 Case 3 Insertion / extraction part 4 Recording medium 5 Gyro sensor 6 Deck mechanism 11 Microcomputer 12 DSP
13 Driver IC
14 Insertion / Ejection Motor 15 Pickup Feed Motor 16 Pickup Lens Coil 28 High Pass Filter 29 Low Pass Filter

Claims (7)

In a recording medium drive device for reproducing and recording information,
The recording medium is a detachable disk-shaped recording medium,
An insertion / extraction mechanism including an insertion / extraction motor for inserting and ejecting the recording medium from the outside,
A posture detecting means for detecting a mounting posture of the recording medium drive device in a state in which the housing of the device is attached to the attached body ;
Look including the handling drive means for driving the handling operation of the recording medium in accordance with the posture detected by the posture detection means,
The handling drive means is adapted to the detected orientation so that insertion and ejection of the recording medium from the outside and to the outside are at a constant insertion / ejection speed regardless of the orientation detected by the orientation detection means. A recording medium drive apparatus that corrects a driving force of the insertion / ejection roller . It further includes head means for reproducing and recording information on the recording medium,
The said handling drive means correct | amends a driving force according to an attitude | position so that predetermined operation | movement of this head means may be performed at a fixed speed irrespective of the attitude | position detected by the said attitude | position detection means. Item 4. The recording medium drive device according to Item 1. The recording medium is an optical disc;
The head means reproduces and records information along a circumferential track preset on the optical disc,
The handling driving means corrects to have a constant jump force regardless of the attitude detected by the attitude detecting means during a track jump operation in which the head means is moved over an adjacent track on the optical disc. 3. The recording medium drive device according to claim 2, wherein The recording medium is an optical disc;
The head means is capable of a focus search for focusing the optical system on the information recording layer of the optical disc and a focus jump operation for changing the focus between a plurality of information recording layers.
3. The recording medium according to claim 2 , wherein the handling drive unit corrects the operation so as to be a constant operation regardless of the posture detected by the posture detection unit during the focus search or the focus jump operation. Drive device. The recording medium can use a plurality of types,
The handling drive means, so that a constant operation regardless of the type of the recording medium, the recording medium drive according to any one of claims 1 to 4, characterized in that the correction. The handling drive means, said drive carried out under servo control using the DSP, the correction of the driving force depending on the posture, claim 1 and performs the correction coefficients on the characteristics of the servo control - 6. The recording medium drive device according to any one of 5 above. The recording medium drive according to claim 1, wherein the handling driving unit corrects the driving force in accordance with the posture by correcting electric power supplied to the actuator that performs the driving. apparatus.

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