• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a method for correcting a carrier position of an auto changer such that a CD is always positioned at a constant position when a CD is inserted into a magazine in the auto changer. The present invention provides a carrier driving method of an auto changer which calculates a current position and a target position and sets the difference between the current position and the target position as the counting number, and stops driving the motor when the counting number becomes 0, wherein the counting number is zero. If the direction of movement from the current position to the target position is downward, the carrier is moved downward by a certain position.If the sensor is turned off, the motor is stopped. By moving the carrier upward until the CD is always located in a certain position.
    公开号:KR19980046339A
    申请号:KR1019960064662
    申请日:1996-12-12
    公开日:1998-09-15
    发明作者:한규희
    申请人:김영환；현대전자산업 주식회사；
    IPC主号:
    专利说明:

    Carrier Position Correction Method of Auto Changer
    The present invention relates to a carrier position correction method of an auto changer such that a CD is always located at a constant position when inserting a compact disc into a magazine in an autochanger.
    The auto changer aka HAS-550, which employs an elevator system and uses an optical sensor, has a magazine (1), which is a CD storage capable of storing about 50 CDs as shown in FIG. And a carrier 2 for moving.
    In such a system, in the conventional Z-axis position control of the carrier 2, when the aging test is performed by using the same algorithm during the upward movement and the downward movement, it stops during the upward movement and the downward movement due to the load of the carrier. Since the position is not constant, when the CD is inserted into the magazine (1), there is a problem that a mechanism error occurs because the CD is caught at the entrance of the magazine (1).
    The present invention is to solve this problem, when the CD is inserted into the magazine to move downwards by a certain position more than the target position when moving downwards again to move the CD at a certain position always eliminates the phenomenon that the CD is caught in the magazine It is an object of the present invention to provide a carrier position correction method of an auto changer.
    That is, according to the present invention, the carrier does not stop at the same position when moving upward and downward as shown in FIGS. Accordingly, when moving downward, the CD is stopped at the same position at all times by deliberately lowering to the B position when moving to the A position as shown in FIG.
    1 is a block diagram of a typical auto changer
    2 (a)-(c) are explanatory diagrams of a comparison operation between the conventional and the present invention
    Figure 3 is a flow chart for performing a carrier position correction method of the auto changer according to the present invention
    4 is an operation explanatory diagram of the present invention.
    Explanation of symbols on the main parts of the drawings
    1: magazine 2: carrier
    3 is a flowchart illustrating a method for correcting a carrier position of an auto changer according to the present invention, which is performed in a general auto changer as shown in FIG. 1. In the following description, the CD is moved.
    First, the current position and the position of the target position are calculated to set the counting number for the movement from the current position to the target position (S1, S2).
    In the case of moving from the C position to the D position in FIG. 4, 6 spaces must be lowered in this case.
    Then, the motor is driven in the target direction, and when the sensor on operation is performed once in the sensor off, the number of counting is decreased by one space (S3-S6).
    After performing step S6, it is determined whether the counting number is 0 (S7). If it is determined not to be 0, the process proceeds to the step S4. When moving to the position, it is determined whether the movement state is up or down (S8).
    If it is determined in step S8 that the target position is higher than the current position, the motor driving is terminated. If the target position is determined to be lower than the current position, the motor is driven to lower the carrier and then the sensor off state is determined. When the sensor is in the off state, the motor is turned off, and then the motor is driven again to move the carrier upward (S9-S12).
    When it is determined that the sensor is in the ON state, the motor is stopped. When the sensor is not in the ON state, the motor is driven to move the carrier upward by driving the motor having the sensor ON position (S13 and S14).
    Referring to the step (S8-S14) described above with reference to FIG. 4, if the target position is D, and the current position is C in Figure 4, the carrier must be moved downward, so that the carrier is moved downward.
    When it is determined that the sensor is in the off state, that is, in the B position in FIG. 2, the motor is stopped and the motor is driven again to move the carrier up to the sensor on position.
    In other words, the steps S8 to S14 mean that the carrier deliberately lowers to the B position and then moves upward when the A position of FIG. 2 is reached.
    As described above, the present invention has an effect of reducing a mechanism error occurrence when inserting a CD into a magazine by allowing a CD to always be positioned at a constant position when inserting a CD into a magazine of an auto changer.
    权利要求:
    Claims (1)
    [1" claim-type="Currently amended] In the carrier driving method of an auto changer which calculates a current position and a target position and sets the difference between the current position and the target position as the number of counting, and stops the motor drive when the counting number becomes zero. If the moving direction from the current position to the target position is downward, the carrier is moved downward by a certain position. If the sensor is turned off, the motor is stopped. A carrier position correcting method of an auto changer, characterized by moving upward.
    类似技术:
    公开号 | 公开日 | 专利标题
    US6208751B1|2001-03-27|Cluster tool
    AU703592B2|1999-03-25|Apparatus and method for reproducing data from multi-layered disk
    EP1202258B1|2007-06-27|Focus control device, recording medium and optical disk reproducing device
    US7729604B2|2010-06-01|Automatic focusing system and method thereof
    US6754019B2|2004-06-22|System and method for implementing a rotary memory device
    EP0840297B1|2005-06-15|Track detection circuit for optical disc playback apparatus
    US6327234B1|2001-12-04|System for discriminating optical discs
    KR100787647B1|2007-12-21|Playback apparatus and method, and recording medium
    KR910004685B1|1991-07-09|Optical disk apparatus
    KR100237524B1|2000-03-02|Photo disc drive
    US7173887B2|2007-02-06|Carriage servo method and apparatus for determining and setting a drive signal
    EP0193961B1|1990-07-04|Information selection device of disc player
    KR20040004735A|2004-01-14|Method for recording substitute defect block in optical disc driver
    JPH08167153A|1996-06-25|Optical disk device
    EP1668637A4|2008-09-10|Optical disc detecting method and apparatus thereof
    KR100484455B1|2005-04-20|Method for determining disk size in optical disc driver
    US6624851B1|2003-09-23|Automatic focusing device of image pickup device and method of correcting zoom tracking curve
    EP0621588A1|1994-10-26|Optical disk recording device
    JP2007035278A|2007-02-08|Optical disk drive memory system, method for controlling movement of optical read head, and sliding mode controller
    US20020145101A1|2002-10-10|Focusing controller for focus jump control between recording layers of multilayer disk
    US7319652B2|2008-01-15|Controlling optical pickup of optical disk drive by detecting change of sampling signals taken from a motor drive signal
    JP2008034058A|2008-02-14|Information reproduction and recording apparatus
    US5970042A|1999-10-19|Recording carrier reproduction/recording apparatus having a reproduction/recording device supported in a floating state and a locking mechanism for cancelling the floating state of the reproduction/recording device
    JP2000155954A|2000-06-06|Focus jump device
    US4879705A|1989-11-07|Automatic loading disc player
    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1996-12-12|Application filed by 김영환, 현대전자산업 주식회사
    1996-12-12|Priority to KR1019960064662A
    1998-09-15|Publication of KR19980046339A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019960064662A|KR19980046339A|1996-12-12|1996-12-12|Carrier Position Correction Method of Auto Changer|
    [返回顶部]