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公开(公告)号：US20050132393A1
公开(公告)日：2005-06-16
申请号：US10959950
申请日：2004-10-06
申请人： Kiyoshi Omori , Masayasu Ito , Aki Yoguchi , Kouji Shinohara , Akio Ishiwata , Masaki Nagatsuka , Toshikazu Kobayashi , Satoshi Mimura , Satoshi Muto , Toshisada Takada
发明人： Kiyoshi Omori , Masayasu Ito , Aki Yoguchi , Kouji Shinohara , Akio Ishiwata , Masaki Nagatsuka , Toshikazu Kobayashi , Satoshi Mimura , Satoshi Muto , Toshisada Takada
IPC分类号： G11B33/12 , G11B7/00 , G11B7/08 , G11B7/085 , G11B7/09 , G11B7/095 , G11B25/04 , G11B33/02 , G11B33/08
CPC分类号： G11B25/043 , G11B7/082 , G11B33/02 , G11B33/08 , G11B2007/0006
摘要： There is provided a disk drive including a base chassis, a first optical pickup mechanism including a disk rotation drive disposed on the base chassis, first optical pickup unit to write and/or read data to and/or from a first optical disk and a first pickup moving mechanism to move the first optical pickup unit radially of the first optical disk, a second optical pickup mechanism disposed opposite to the first optical pickup mechanism and including a second optical pickup unit to write and/or read data to and/or from a second optical disk and a second pickup moving mechanism to move the second optical pickup unit radially of the second optical disk, and a controlling means for detecting the movement of one of the optical pickup units and moving the other optical pickup unit to make weight balancing of the base chassis. Thus, the base chassis weight is balanced while one of the two optical pickup units is being moved.
摘要翻译： 提供一种磁盘驱动器，其包括底架，包括设置在底架上的盘旋转驱动器的第一光学拾取机构，用于向第一光盘和/或从第一光盘写入和/或读取数据的第一光学拾取单元 拾取移动机构以使第一光学拾取单元沿第一光盘径向移动;第二光学拾取机构，设置成与第一光学拾取机构相对，并且包括第二光学拾取单元，用于向第一光学拾取器和/ 第二光盘和第二拾取移动机构，以使第二光学拾取单元沿第二光盘径向移动;以及控制装置，用于检测光拾取单元之一的移动并移动另一光拾取单元， 底盘。 因此，两个光学拾取单元中的一个被移动时，底架重量被平衡。
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公开(公告)号：US07489601B2
公开(公告)日：2009-02-10
申请号：US10959950
申请日：2004-10-06
申请人： Kiyoshi Omori , Masayasu Ito , Aki Yoguchi , Kouji Shinohara , Akio Ishiwata , Masaki Nagatsuka , Toshikazu Kobayashi , Satoshi Mimura , Satoshi Muto , Toshisada Takada
发明人： Kiyoshi Omori , Masayasu Ito , Aki Yoguchi , Kouji Shinohara , Akio Ishiwata , Masaki Nagatsuka , Toshikazu Kobayashi , Satoshi Mimura , Satoshi Muto , Toshisada Takada
IPC分类号： G11B7/00
CPC分类号： G11B25/043 , G11B7/082 , G11B33/02 , G11B33/08 , G11B2007/0006
摘要： There is provided a disk drive including a base chassis, a first optical pickup mechanism including a disk rotation drive disposed on the base chassis, first optical pickup unit to write and/or read data to and/or from a first optical disk and a first pickup moving mechanism to move the first optical pickup unit radially of the first optical disk, a second optical pickup mechanism disposed opposite to the first optical pickup mechanism and including a second optical pickup unit to write and/or read data to and/or from a second optical disk and a second pickup moving mechanism to move the second optical pickup unit radially of the second optical disk, and a controlling means for detecting the movement of one of the optical pickup units and moving the other optical pickup unit to make weight balancing of the base chassis. Thus, the base chassis weight is balanced while one of the two optical pickup units is being moved.
摘要翻译： 提供一种磁盘驱动器，其包括底架，包括设置在底架上的盘旋转驱动器的第一光学拾取机构，用于向第一光盘和/或从第一光盘写入和/或读取数据的第一光学拾取单元 拾取移动机构以使第一光学拾取单元沿第一光盘径向移动;第二光学拾取机构，设置成与第一光学拾取机构相对，并且包括第二光学拾取单元，用于向第一光学拾取器和/ 第二光盘和第二拾取移动机构，以使第二光学拾取单元沿第二光盘径向移动;以及控制装置，用于检测光拾取单元之一的移动并移动另一光拾取单元， 底盘。 因此，两个光学拾取单元中的一个被移动时，底架重量被平衡。
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公开(公告)号：US06928034B2
公开(公告)日：2005-08-09
申请号：US10024589
申请日：2001-12-17
CPC分类号： G11B7/0908 , G11B7/0901 , G11B7/094 , G11B7/0945 , G11B7/0956
摘要： In an optical disc apparatus, a minimum jitter value is established from each jitter value measured in correspondence to a successively changed servo constant, and multiplied by a prescribed ratio so as to set a jitter threshold value. Servo constants corresponding to at least two jitter values substantially equal to the jitter threshold value is established, and an optimum servo constant is set based on this minimum of two servo constants. By doing this, it is possible to quickly and accurately detect the optimum servo constant, and achieve good servo adjustment.
摘要翻译： 在光盘装置中，根据与连续变化的伺服常数相对应地测量的每个抖动值建立最小抖动值，并乘以规定的比例，以便设置抖动阈值。 建立对应于基本上等于抖动阈值的至少两个抖动值的伺服常数，并且基于两个伺服常数的最小值来设定最佳伺服常数。 通过这样做，可以快速，准确地检测最佳伺服常数，实现良好的伺服调整。
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