Skew control method and skew control unit
    24.
    发明授权
    Skew control method and skew control unit 失效
    倾斜控制方法和歪斜控制单元

    公开(公告)号:US07394737B2

    公开(公告)日:2008-07-01

    申请号:US10936746

    申请日:2004-09-09

    IPC分类号: G11B20/18

    CPC分类号: G11B7/0945 G11B7/0956

    摘要: The present invention relates to a skew control method and a skew control unit by which stable skew control can be performed with a simple configuration without the need for a dedicated skew sensor.Focus drive voltages V1 and V2 are measured at a plurality of points P1 and P2 set by moving an optical pick-up 31 in the radial direction of an optical disc 2 in a state where a focus servo of the optical pick-up 31 is ON, and skew angle control is performed so that V1 and V2 are equal to each other.

    摘要翻译: 本发明涉及一种歪斜控制方法和歪斜控制单元,可以通过简单的配置进行稳定的歪斜控制,而不需要专用的歪斜传感器。 在通过在光拾取器31的聚焦伺服机构的状态下移动光学拾取器31而在光盘2的径向上移动的多个点P 1和P 2处测量聚焦驱动电压V 1和V 2, 向上31是ON,并且执行偏斜角度控制使得V 1和V 2彼此相等。

    Recording/reproduction method and apparatus in which sub data is written/read in periods during which writing/reading of main data is not performed
    25.
    发明授权
    Recording/reproduction method and apparatus in which sub data is written/read in periods during which writing/reading of main data is not performed 有权
    在不执行写入/读取主数据的期间内写入/读取副数据的记录/再现方法和装置

    公开(公告)号:US06400667B1

    公开(公告)日:2002-06-04

    申请号:US09414090

    申请日:1999-10-07

    IPC分类号: G11B390

    摘要: A reproduction apparatus and method a recording apparatus and method by which two different kinds of data can be reproduced and recorded efficiently are disclosed. When main data are intermittently read in from a recording medium, periods within which reading in of the main data is not performed appear inevitably, and the periods are made use of to read in sub data from the recording medium, thereby allowing synchronized reproduction of the main data and the sub data which relate to the main data. On the other hand, when main data are intermittently written onto a recording medium, periods within which writing of the main data is not performed appear inevitably, and the periods are made use of to write sub data onto the recording medium, thereby allowing parallel recording of the main data and the sub data.

    摘要翻译: 公开了一种能够高效地再现和记录两种不同种类的数据的记录装置和方法的再现装置和方法。 当从记录介质间歇地读入主数据时,不可避免地出现主数据读入的周期,并且利用从记录介质读取子数据的周期,从而允许同步再现 主数据和与主数据相关的子数据。 另一方面,当将主数据间歇地写入记录介质时,不可避免地出现主数据写入的周期,并且使用这些周期将子数据写入到记录介质上,从而允许并行记录 的主数据和子数据。

    Memory control and reproducing and/or recording apparatus for storage and access of memory location
    26.
    发明授权
    Memory control and reproducing and/or recording apparatus for storage and access of memory location 失效
    用于存储和访问存储器位置的存储器控​​制和再现和/或记录装置

    公开(公告)号:US06298030B1

    公开(公告)日:2001-10-02

    申请号:US08609855

    申请日:1996-03-01

    申请人: Yasuaki Maeda

    发明人: Yasuaki Maeda

    IPC分类号: G11B70045

    摘要: In a memory control device for controlling the write-in/read-out operation for a memory of a recording/reproducing apparatus, a sector data storing area and an additive area are set in each sector-based data storing area in the memory. A prescribed data is stored in the additive area associated with the sector-based data stored in the sector data storing areas. The access addresses for the additive area are generated on the basis of the sector count value when the sector data write-in or read-out is carried out in the memory. The access addresses are calculated by the memory control device.

    摘要翻译: 在用于控制记录/再现装置的存储器的写入/读出操作的存储器控​​制装置中,在存储器的每个基于扇区的数据存储区域中设置扇区数据存储区域和附加区域。 规定的数据被存储在与存储在扇区数据存储区域中的基于扇区的数据相关联的附加区域中。 当在存储器中执行扇区数据写入或读出时,基于扇区计数值生成加法区域的访问地址。 访问地址由存储器控制装置计算。

    Data encoder
    28.
    发明授权
    Data encoder 失效
    数据编码器

    公开(公告)号:US5659529A

    公开(公告)日:1997-08-19

    申请号:US530073

    申请日:1995-09-19

    摘要: A data encoder wherein the outputs of a synchronization data generating means 51, a cluster counter 52, a sector counter 53, a recording data output means 56 and a dummy data generating means 55 are selected by a selector 57 to provide an output. A selector control means 59 is constituted to control the selector 57 to output a data group (cluster) which is one recording unit formed of the predetermined number of sectors in the predetermined format by controlling the selector 57 in a predetermined timing depending on a Link signal based on the sector counter 53 and a count value of the byte counter 60. The processing load shared on a microcomputer, which is controlling the recording operation, can thus be alleviated remarkably.

    摘要翻译: 数据编码器,其中选择器57选择同步数据产生装置51,簇计数器52,扇区计数器53,记录数据输出装置56和伪数据产生装置55的输出以提供输出。 构成选择器控制装置59,用于控制选择器57根据链接信号以预定的定时控制选择器57输出作为预定格式的预定数量的扇区形成的一个记录单元的数据组(簇) 基于扇区计数器53和字节计数器60的计数值。因此可以显着地减轻在控制记录操作的微型计算机上共享的处理负荷。

    Magneto optical disk recording apparatus including a plurality of
connected recording unit buffer memories
    29.
    发明授权
    Magneto optical disk recording apparatus including a plurality of connected recording unit buffer memories 失效
    MAGNETO光盘记录装置,包括多个连接的记录单元缓冲存储器

    公开(公告)号:US5099464A

    公开(公告)日:1992-03-24

    申请号:US391568

    申请日:1989-07-25

    申请人: Yasuaki Maeda

    发明人: Yasuaki Maeda

    摘要: A disk recording apparatus (10) is designed for recording predetermined input data D.sub.IN onto a disk-like recording medium (21) having recording tracks on which predetermined absolute address information has been recorded in advance. The disk recording apparatus comprises input memory control means (15), (16) and (17) which successively store the input data D.sub.IN for every predetermined recording units (FB.sub.0), (FB.sub.1), (FB.sub.2), . . . , (FB.sub.N) and read the data from given positions (t.sub.0), (t.sub.1), (t.sub.2), . . . , (t.sub.N) for each of said predetermined recording units to send them to recording means (20) and (22). The apparatus further comprises abnormal condition detection and control means (15) which always monitors the absolute address information on said recording tracks to detect any abnormal condition based on said absolute address information. When abnormal condition has developed, the control means (15) calculates the return time required for said recording means (20) and (22) to return to the head position of said recording unit that is being recorded on the recording track, and controls and records the reading positions (t.sub.0), (t.sub.1), (t.sub.2), . . . , (t.sub.N) of said input memory control means (15), (16) and (17) in advance by the number of recording units that correspond to the calculated result. Probability of elimination of the recorded data is thus avoided even when abnormal condition has developed in the recording means (20), (22) while the input data D.sub.IN are being recorded.

    摘要翻译: PCT No.PCT / JP88 / 01201 Sec。 371日期:1989年7月25日 102(e)日期1989年7月25日PCT提交1988年11月28日PCT公布。 出版物WO89 / 05509 日期:1989年6月15日。一种盘记录装置(10)被设计用于将预定的输入数据DIN记录到具有已经预先记录了预定绝对地址信息的记录道的盘状记录介质(21)上。 盘记录装置包括输入存储器控制装置(15),(16)和(17),它们为每个预定的记录单元(FB0),(FB1),(FB2)等连续存储输入数据DIN。 。 。 ,(FBN)并从给定位置(t0),(t1),(t2),...读取数据。 。 。 ,(tN)用于每个所述预定记录单元,以将它们发送到记录装置(20)和(22)。 该装置还包括异常状态检测和控制装置(15),其总是监视所述记录磁道上的绝对地址信息,以基于所述绝对地址信息检测任何异常状况。 当异常状态发生时,控制装置(15)计算所述记录装置(20)和(22)返回到记录在记录轨道上的记录单元的打印头位置所需的返回时间,并且控制和 记录读取位置(t0),(t1),(t2),。 。 。 ,(tN),所述输入存储器控制装置(15),(16)和(17)预先通过与计算结果对应的记录单元的数量。 因此,即使在正在记录输入数据DIN的情况下,在记录装置(20),(22)中出现异常状况,也避免了记录数据消除的概率。