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1. 发明授权

US5008552A Data recording and reproducing apparatus for an optical card 失效
标题翻译：用于光卡的数据记录和再现装置
公开(公告)号：US5008552A
公开(公告)日：1991-04-16
申请号：US274994
申请日：1988-10-07
申请人： Wataru Kuramochi , Yoshiaki Tsuruoka , Norikazu Saitou , Akira Shibuya , Shuichi Yamashita
发明人： Wataru Kuramochi , Yoshiaki Tsuruoka , Norikazu Saitou , Akira Shibuya , Shuichi Yamashita
IPC分类号： G11B7/0033 , G11B7/007 , G11B7/08 , G11B7/085 , G11B7/09 , G11B17/34 , G11B19/10 , G11B19/20 , G11B25/04 , G11B33/08 , G06K13/06 , G06K13/24
CPC分类号： G11B19/20 , G11B17/34 , G11B19/10 , G11B19/2018 , G11B25/04 , G11B33/08 , G11B7/0033 , G11B7/00745 , G11B7/08 , G11B7/08505 , G11B7/08523 , G11B7/0857 , G11B7/0904 , G11B7/0917 , G11B2007/0924
摘要： Data can be recorded onto an optical card (102; 200; 601; 800) on which a plurality of tracks are parallelly arranged and can be reproduced therefrom. The optical card is supported by card supporting means (101; 501). This card supporting means is reciprocated in a first direction by card drive means (109; 511). An optical head (103; 503; 603) is provided above the optical card to selectively provide access to tracks by a light beam. This optical head is reciprocated in a second direction perpendicular to the first direction by head drive means (108; 507). The reciprocating motion of the card supporting means is accelerated and decelerated when the optical head scans on guide sections (G) provided on both the sides of the optical card. Error correcting codes are added to data recorded onto the optical card. Thus, error correction is made by an error correction circuit (136). Motors of respective drive means are enclosed with vibration proof metal (321, 323) and vibration proof rubber (322). The card supporting means (101) comprises pressing means (423) for pressing the upper surface of the optical card and positioning means (425) which can be in contact with the side surface of the optical card and away therefrom, thus to carry out positioning of the optical card. The card supporting means (501) is provided with contact surface (501a). By roller means (506) having rotation shaft (505) slightly inclined with respect to perpendicular (505') set up on the plane including the contact surface, optical card inserted from the outside is introduced toward the contact surface. The optical head (103) is ordinarily controlled by feedback control.

2. 发明授权

US4979159A Method of recording data onto an optical card having a plurality of tracks containing at least one ID section, error correcting code or directory pointer area and method of reproducing data therefrom 失效
标题翻译：将数据记录在具有包含至少一个ID部分，纠错码或目录指针区域的多个轨道的光卡上的方法以及从其再现数据的方法
公开(公告)号：US4979159A
公开(公告)日：1990-12-18
申请号：US265808
申请日：1988-10-07
申请人： Yoshiaki Tsuruoka , Norikazu Saitou
发明人： Yoshiaki Tsuruoka , Norikazu Saitou
IPC分类号： G11B7/0033 , G11B20/12 , G11B20/18 , G11B27/30 , G11B27/32
CPC分类号： G11B20/1215 , G11B20/1809 , G11B27/3027 , G11B27/327 , G11B7/0033 , G11B2220/218
摘要： A large number of tracks (T) are formed on an optical card (200) and user data are recorded as pits on these tracks. By driving this optical card in a reciprocating manner in a direction parallel to the tracks, user data are reproduced. At both the end portions of each track, guide sections (G) in which no pit indicative of information is formed are provided, thus preventing errors in reading occurring at the time of acceleration and deceleration in the reciprocating drive. Identification information (I) for tracks is recorded at the inside portion adjacent to one guide section, and termination information (E) for tracks is recorded at the inside portion adjacent to the other guide section. User data (U) are recorded between the identification information and the termination information. User data is divided into groups comprised of a predetermined number of bits. Unit data blocks in which an error correcting code is added to every group are formed and these unit data blocks are recorded in a distributed manner on the optical card. On the optical card, a directory pointer area (212), a directory area (213) and a data area (214) are provided. Where there is an alteration in the directory on the basis of a change of the data area, a new directory is written into the directory area and at all times a directory pointer indicating the position of the newest directory is written into the directory pointer area.
摘要翻译： PCT No.PCT / JP88 / 00141 Sec。 371日期：1988年10月7日 102（e）日期1988年10月7日PCT提交1988年2月12日PCT公布。公开号WO88 / 06339 日期：1988年8月25日。在光卡（200）上形成大量轨道（T），并且将用户数据作为凹坑记录在这些轨道上。通过以与轨道平行的方向往复运动地驱动该光卡，再现用户数据。在每个轨道的两端设置有不形成指示信息的凹坑的引导部（G），从而防止在往复运动中加速和减速时发生的读取错误。轨道的识别信息（I）被记录在与一个引导部分相邻的内部部分中，并且轨道的终止信息（E）被记录在与另一引导部分相邻的内部部分。用户数据（U）被记录在识别信息和终止信息之间。用户数据被分成由预定位数组成的组。形成其中向每个组添加纠错码的单位数据块，并且这些单位数据块以分布式方式记录在光卡上。在光卡上设置目录指针区域（212），目录区域（213）和数据区域（214）。根据数据区域的变化，在目录中存在变更的情况下，将新目录写入目录区域，并且总是将指示最新目录的位置的目录指针写入目录指针区域。

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