DATA RECORDING METHOD AND APPARATUS FOR OPTICAL MEMORY CARDS
    1.
    发明申请
    DATA RECORDING METHOD AND APPARATUS FOR OPTICAL MEMORY CARDS 审中-公开
    光记录卡的数据记录方法和装置

    公开(公告)号:WO1998021721A1

    公开(公告)日:1998-05-22

    申请号:PCT/JP1997004082

    申请日:1997-11-10

    Abstract: Data recording method and apparatus for optical memory cards which are adapted to prevent a recording error due to step-out during a data recording operation, and minimize a decrease in the recording capacity of an optical memory card. While data are recorded, an output from a SYNC mark detecting circuit (2) and that from an internal synchronizing signal generating circuit (3) are compared with each other in a comparator circuit (4). When step-out occurs, a write signal generating circuit (5) is stopped and the data recording operation is interrupted, and a re-recording operation is started at a frame adjacent to the frame in which a recording error occurred, on the basis of the value in a write cycle counter, whereby a decrease in the recording capacity of the optical memory card is minimized.

    Abstract translation: 用于光存储卡的数据记录方法和装置,其适于在数据记录操作期间防止由于失步引起的记录错误,并且最小化光存储卡的记录容量的降低。 在记录数据的同时,在比较器电路(4)中比较来自SYNC标记检测电路(2)的输出和来自内部同步信号发生电路(3)的输出。 当发生超出时,写入信号发生电路(5)停止并且数据记录操作被中断,并且基于在发生记录错误的帧的相邻帧处开始重新记录操作 写周期计数器中的值,从而最小化光存储卡的记录容量的减小。

    磁気記録媒体の認証方法、磁気記録媒体の認証システム、および認証可能な磁気記録媒体
    2.
    发明申请
    磁気記録媒体の認証方法、磁気記録媒体の認証システム、および認証可能な磁気記録媒体 审中-公开
    磁记录介质认证方法,磁记录介质认证系统和可以被认可的磁记录介质

    公开(公告)号:WO2005116993A1

    公开(公告)日:2005-12-08

    申请号:PCT/JP2005/009869

    申请日:2005-05-30

    Inventor: 須賀川 進

    Abstract:  磁気カード等の磁気記録媒体の真贋判定の信頼性の高い手段を提供する。  磁気記録媒体の認証方法は、磁気記録媒体の記録領域に設けられた少なくとも1つの磁気トラックに書き込み信号を用いて基本情報を書き込む基本情報書込み、記録領域に設けられた少なくとも他の1つの磁気トラックに前記書込み信号を任意の量だけずらした書込み信号を用いて認証情報を書き込み、前記他の磁気トラックからの読取り信号に基づき、または前記1つの磁気トラックからの読取り信号と前記他の磁気トラックからの読取り信号とを比較することにより前記ずらし量に基づく認証情報を生成し、前記認証情報に基づいて記録媒体の認証を実行する。

    Abstract translation: 可以提供用于磁记录介质如磁卡的真实判断的高度可靠的装置。 磁记录介质认证方法包括:基本信息写入步骤,用于通过使用写入信号在布置在磁记录介质的记录区域中的至少一个(第一)磁道上写入基本信息; 通过使用在布置在记录区域上的上述(第一)轨道以外的至少一个(第二)轨道上移动任意量的写入信号来写入认证信息的步骤; 当将来自第一磁道的读取信号与来自第二磁道的读取信号进行比较时,根据来自第二磁道的读取信号或根据移位量生成认证信息的步骤; 以及根据认证信息进行认证的步骤。

    RECORDING MEDIUM AND METHOD AND DEVICE FOR PROCESSING IT
    4.
    发明申请
    RECORDING MEDIUM AND METHOD AND DEVICE FOR PROCESSING IT 审中-公开
    记录介质及其处理方法和装置

    公开(公告)号:WO01011555A1

    公开(公告)日:2001-02-15

    申请号:PCT/JP1999/004252

    申请日:1999-08-05

    CPC classification number: G11B20/1215 G06K7/084 G06K19/06187 G11B5/00808

    Abstract: Recording medium can be handled more easily because a card insertion direction to a card processor need not be limited to one direction. A magnetic stripe (11) of a magnetic card (10) stores, in a direction of the arrow (C) and in a sequence mentioned, a preamble data (21), a forward direction decision data (25), STX (24), a recording/reproducing data (23), backward direction decision data (26) and a postamble data (22). The forward direction decision data (25) and the backward direction decision data (26) consist of data rows of logical values, 0 and 1, which are combined under a preset condition, with the reverse arrangement of the backward direction decision data (26) not agreeing with the forward arrangement of the forward direction decision data (25). Therefore, a reading direction of a magnetic data can be specified by detecting either the forward direction decision data (25) disposed in a forward direction and following the preamble data (21) or the backward direction decision data (26) disposed in a reverse direction and following the postamble data (22).

    Abstract translation: 可以更容易地处理记录介质,因为向卡处理器的卡插入方向不必限于一个方向。 磁卡(10)的磁条(11)沿箭头(C)的方向并按上述顺序存储前导数据(21),正向判定数据(25),STX(24) ,记录/再现数据(23),反向判定数据(26)和后同步码数据(22)。 正向判定数据(25)和反向判定数据(26)由在预设条件下组合的逻辑值0和1的数据行与后向判定数据(26)的反向排列组成, 不同意正向决定数据(25)的正向排列。 因此,可以通过检测向前方向配置的前向判定数据(25)和跟随前置码数据(21)或逆方向判定数据(26)的方向来指定磁数据的读取方向 并遵循后同步码数据(22)。

    METHOD AND DEVICE FOR RECORDING DATA IN AN OPTICAL MEMORY CARD
    5.
    发明申请
    METHOD AND DEVICE FOR RECORDING DATA IN AN OPTICAL MEMORY CARD 审中-公开
    用于在光记忆卡中记录数据的方法和装置

    公开(公告)号:WO1998021717A1

    公开(公告)日:1998-05-22

    申请号:PCT/JP1997004081

    申请日:1997-11-10

    CPC classification number: G11B20/1215 G11B7/0033 G11B7/013 G11B19/04

    Abstract: A method and a device for recording data in an optical memory card which facilitate discrimination between an unrecorded area and a recorded area in the optical memory card and which prevent double over writing. Recording pits are formed so that data to be recorded on the optical memory card is recorded in the same way as when recorded in the MFM-RZ modulation system. Data that was recorded in the NRZI-RZ modulation system is reproduced and then recorded in the MFM-RZ modulation system. This method forms the recording pits at least every 2 recording intervals or less in the recorded area in the optical memory card, making it possible to discriminate the recorded area of the optical memory card from the unrecorded area according to the presence or absence of the recording pits and thereby prevent double writing.

    Abstract translation: 一种用于在光学存储卡中记录数据的方法和装置,其有助于辨别光存储卡中的未记录区域和记录区域,并且防止双重写入。 形成记录凹坑,使得记录在光存储卡上的数据以与记录在MFM-RZ调制系统中相同的方式被记录。 记录在NRZI-RZ调制系统中的数据被再现,然后记录在MFM-RZ调制系统中。 该方法在光存储卡的记录区域中至少每2个记录间隔至少形成记录凹坑,使得可以根据记录的存在或不存在来区分光存储卡的记录区域与未记录区域的记录区域 从而防止双重写入。

    AUDIOVISUAL DATA RECORDING / REPRODUCING SYSTEM
    7.
    发明申请
    AUDIOVISUAL DATA RECORDING / REPRODUCING SYSTEM 审中-公开
    音频数据记录/复制系统

    公开(公告)号:WO99054877A1

    公开(公告)日:1999-10-28

    申请号:PCT/JP1999/002096

    申请日:1999-04-20

    Abstract: An audiovisual data recording/reproducing system comprises receiving means for receiving commands from a controller; means that reads command reception information, data I/O information, buffer control information, write control information, and read control information on the storage device of the type corresponding to a received command from memory in order to load the retrieved information into registers; and processing means for performing control according to the contents of the registers.

    Abstract translation: 视听数据记录/再现系统包括用于从控制器接收命令的接收装置; 意味着从存储器读取与接收到的命令相对应的类型的存储装置上的命令接收信息,数据I / O信息,缓冲器控制信息,写入控制信息和读取控制信息,以将检索到的信息加载到寄存器中; 以及用于根据寄存器的内容执行控制的处理装置。

    METHOD AND DEVICE FOR CONTROLLING TRACKING OF OPTICAL MEMORY CARD
    8.
    发明申请
    METHOD AND DEVICE FOR CONTROLLING TRACKING OF OPTICAL MEMORY CARD 审中-公开
    用于控制光记忆卡跟踪的方法和装置

    公开(公告)号:WO1998007146A1

    公开(公告)日:1998-02-19

    申请号:PCT/JP1997002836

    申请日:1997-08-15

    Abstract: A method and device for controlling the tracking of an optical memory card by which synchronism can be established easily, a track holding mistake can be detected and corrected easily, high speed operation can be realized and the double-writing, etc. can be avoided. The guide tracks (2) for optical memory cards are composed of the rows of guide track segments (4, 4a, 4b, 4c and 4d). A synchronizing signal is extracted from the row pattern of the guide tracks detected by photodetectors (11 and 12) and a data recording track (1) is identified to establish synchronism and a track holding mistake is detected and corrected.

    Abstract translation: 用于控制光存储卡的跟踪的方法和装置可以容易地建立同步,可以容易地检测和校正轨道保持错误,可以实现高速操作,并且可以避免双重写入等。 用于光学存储卡的引导轨道(2)由导轨段(4,4a,4b,4c和4d)的行组成。 从由光电检测器(11和12)检测到的导轨的行图案中提取同步信号,并且识别数据记录轨道(1)以建立同步,并且检测和校正轨道保持错误。

    METHOD FOR RECORDING AND REPRODUCING DATA FOR AN OPTICAL CARD
    9.
    发明申请
    METHOD FOR RECORDING AND REPRODUCING DATA FOR AN OPTICAL CARD 审中-公开
    记录和再现光盘数据的方法

    公开(公告)号:WO1988006339A1

    公开(公告)日:1988-08-25

    申请号:PCT/JP1988000141

    申请日:1988-02-12

    Abstract: Data are reproduced by reciprocally driving an optical card (200) in a direction parallel with tracks (T). A guide portion (G) without data pit is formed on both sides of each of the tracks to prevent read errors from occuring during the acceleration and deceleration of reciprocal movement. Track identification data (I) and end-of-track data (E) are recorded adjacent to the guide portion, and user data (U) are recorded therebetween. The user data are divided into groups which are recorded on the optical card in a dispersed manner. On the optical card are provided a directory pointer region (212), a directory region (213) and a data region (214). When the directory is changed accompanying a change in the data region, a new directory is written on the directory region, and a directory pointer that always indicates the position of the latest directory is written onto the directory pointer region.

    METHOD OF RECORDING DATA ONTO AN OPTICAL DATA RECORDING CARD
    10.
    发明申请
    METHOD OF RECORDING DATA ONTO AN OPTICAL DATA RECORDING CARD 审中-公开
    将数据记录在光学数据记录卡上的方法

    公开(公告)号:WO1986006535A1

    公开(公告)日:1986-11-06

    申请号:PCT/JP1986000134

    申请日:1986-03-18

    Abstract: A concrete data format to achieve the following assignments, i.e., (1) to control the reading operation of a line sensor for a unit read column, (2) to maintain synchronism with data bits during the reading operation, (3) to discriminate neighboring unit read columns, (4) to cope with the generation of errors during the reading operation, and (5) to efficiently access the data. To achieve the above assignments, the data bits are arranged in the form of unit read columns, bars are provided to guide the line sensor, and a format is formed to instruct a central position of the unit read columns. Further, special bars are provided to correct the inclination of the line sensor. The data bits are arranged at predetermined periods, and synchronizing bits are provided to maintain synchronism with the period of data bits during the reading operation. There are further provided discrimination bits to discriminate the neighboring unit read columns during the reading operation. The discrimination bits may be so arranged that columns of even numbers and columns of odd numbers are discriminated from each other. Besides, the discrimination bits may be composed of three bits to increase the reliability. The format of this invention has particular error check bit(s) to cope with errors that may develop during the reading operation. Further, the data are recorded in a dispersed manner to cope with errors such as local smudges, and others. To efficiently acces the data, necessary data such as predetermined addresses are recorded together with general data. The invention further discloses a method of forming bits by modulating digital signals, and an optical system and a signal processing system of a reader for the optical data recording card. The optical data recorded in by the method of the invention is expected to find extensive applications as a recording medium for computer programs, video and music data, and a variety of data bases.

Patent Agency Ranking