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1. 发明专利

JP2008052901A Generating quadrature seek signal from discrete-time tracking error signal and discrete-time rf data signal in optical storage device 审中-公开
标题翻译：在离散时间跟踪跟踪错误信号和离散数据信号在光存储设备中产生正交信号
公开(公告)号：JP2008052901A
公开(公告)日：2008-03-06
申请号：JP2007261426
申请日：2007-10-04
申请人： Cirrus Logic Inc , シーラスロジック,インコーポレイテッドCirrus Logic,Inc.
发明人： ZHU SHUANGXIA , SUPINO LOUIS , GRABA JIM , ROMANO PAUL
IPC分类号： G11B7/085 , G11B21/08 , G11B7/09 , G11B21/10
CPC分类号： G11B7/08541 , G11B7/0901
摘要： PROBLEM TO BE SOLVED: To provide an improved seek detector for an optical disk storage device, capable of generating a quadrature signal from a discrete-time TES signal and a discrete-time RF baseband signal.
SOLUTION: In the optical disk storage device wherein user data is demodulated from a light beam reflecting off data pits in tracks of an optical disk storage medium, a quadrature seek signal is generated indicative of the light beam crossing tracks of the optical disk during a seek operation. The quadrature seek signal is generated from a discrete-time tracking error signal (TES) and a discrete-time RF baseband signal. The discrete-time TES is generated according to the mode of operation, compact disk (CD) or digital video disk (DVD).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种能够从离散时间TES信号和离散时间RF基带信号产生正交信号的用于光盘存储装置的改进的寻道检测器。解决方案：在从光盘存储介质的轨道中反射数据凹坑的光束解调用户数据的光盘存储装置中，产生指示光束与光盘交叉轨迹的正交寻道信号在寻求操作期间。正交搜索信号由离散时间跟踪误差信号（TES）和离散时间RF基带信号产生。离散时间TES根据操作模式，光盘（CD）或数字视频盘（DVD）生成。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JPH11273095A Generation for orthogonal seek signal from discontinuous timewise tracking error signal and discontinuous timewise rf data signal in optical storage device 有权
标题翻译：由不连续的时间轴跟踪误差信号和不连续的时间轴产生正交信号信号在光存储器件中的RF数据信号
公开(公告)号：JPH11273095A
公开(公告)日：1999-10-08
申请号：JP35363198
申请日：1998-12-11
申请人： Cirrus Logic Inc , シーラスロジック,インコーポレイテッド
发明人： ZHU SHUANGXIA , SUPINO LOUIS , GRABA JIM , ROMANO PAUL
IPC分类号： G11B21/08 , G11B7/085 , G11B7/09 , G11B21/10
CPC分类号： G11B7/08541 , G11B7/0901
摘要： PROBLEM TO BE SOLVED: To generate orthogonal signals from a discontinuous timewise TES signal and a discontinuous timewise RF baseband signal by detecting pulses being in the discontinuous timewise TES signal expressing the position of a light beam with respect to the center line of a track and the discontinuous timewise RF baseband signal and counting the number of tracks in which the light beam traverses in its seeking operation. SOLUTION: A discontinuous timewise TES signal 114 is selected by a MUX 100. On the other hand, a discontinuous timewise RF baseband signal 112 is extracted by an envelope detector 110. The discontinuous timewise TES signal 114 and the RF baseband signal 112 are synchronized by a synchronizer 118 according to a current seek speed and an operation mode and they pass through LPFs 116A, 116B and a track traversing frequency is extracted. Then, these signals are respectively converted into binary square-wave signals TEX 128 and REX 130 by a TEX detector 132 and a REX detector 134 to form orthogonal seek signals.
摘要翻译：要解决的问题：通过检测表示光束相对于轨道的中心线的位置的不连续的时间TES信号中的脉冲来产生来自不连续的时间TES信号和不连续的时间RF基带信号的正交信号，不连续的时间上的RF基带信号，并且在其寻道操作中对光束穿过的轨道数进行计数。解决方案：由MUX100选择不连续的时间TES信号114.另一方面，由包络检测器110提取不连续的时间上的RF基带信号112.不连续的时间TES信号114和RF基带信号112通过提取根据当前搜索速度和操作模式的同步器118，并且它们通过LPF 116A，116B和轨道横越频率被提取。然后，这些信号通过TEX检测器132和REX检测器134分别转换成二进制方波信号TEX 128和REX 130，以形成正交寻道信号。

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