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    • 1. 发明授权
    • Optical card having a mirror section with a pair of auxiliary guide
tracks
    • 具有具有一对辅助导轨的镜部的光卡
    • US5352880A
    • 1994-10-04
    • US74778
    • 1993-06-10
    • Koichi YamazakiKazuo Noda
    • Koichi YamazakiKazuo Noda
    • B42D15/10G06K19/06G11B7/0033G11B7/09G11B7/24
    • G11B7/0033G11B7/0938G11B7/24
    • The present invention provides an optical card wherein the irradiation position of laser beams is pulled back into an information recording section 1 in such a manner that the operation of recording or reproducing information can continue. In this optical card, information is recorded on or reproduced from a prescribed information recording section on a card surface in accordance with optical scanning along guide tracks provided in the card surface, and the optical card is provided with a mirror section arranged adjacent to the information recording section in the direction parallel to the direction of optical scanning of the information recording section. The optical card is characterized in that the mirror section is provided with at least one pair of curved auxiliary guide tracks that are connected to the guide tracks in the information recording section.
    • 本发明提供了一种光卡,其中激光束的照射位置被拉回信息记录部分1,使得记录或再现信息的操作可以继续。 在该光卡中,根据设置在卡表面上的引导轨道的光学扫描,将信息记录在卡表面上的规定信息记录部分上或从卡面上再现,​​并且光卡设置有与信息相邻布置的反射镜部分 记录部分沿着与信息记录部分的光学扫描方向平行的方向。 光卡的特征在于,镜部设置有至少一对弯曲的辅助导轨,其连接到信息记录部中的导轨。
    • 5. 发明授权
    • Linear motor with permanent magnets
    • 带永磁体的直线电机
    • US5341053A
    • 1994-08-23
    • US682691
    • 1991-04-09
    • Koichi YamazakiKazuo NodaEiichi Nakamura
    • Koichi YamazakiKazuo NodaEiichi Nakamura
    • G11B7/0033G11B7/085G11B17/022G11B17/04G11B19/20G11B25/04H02K41/035H02K41/02H01F7/08H02K33/18
    • G11B17/0408G11B17/022G11B19/20G11B25/04G11B7/0033G11B7/08588H02K41/0356
    • A linear motor having a magnetic circuit and a moving coil, the magnetic circuit comprising a linear yoke provided at the center of the circuit and a pair of linear magnets, the linear yoke and the pair of linear magnets forming a pair of linear gaps with the linear yoke interposed therebetween, the magnetic circuit applying a magnetic field to the linear gaps, the movable coil mounted on the linear yoke of the magnetic circuit being moved along the linear yoke by an electromagnetic action to the magnetic circuit when the movable coil is powered, wherein the linear magnet has a larger magnetic force at opposite end portions in the longitudinal direction of the linear magnet than at an intermediate area, the magnetic reluctance of the magnetic circuit is made large to obtain a driving current of the movable coil corresponding to the magnetic reluctance when the moving coil moves at the intermediate area of the linear magnet, or the magnetic circuit is mounted on a plate made of material having the same magnetic reluctance as the linear yoke. An information recording/reproducing apparatus having a card transport stage for transporting an information recording medium and a laser unit for radiating a laser beam to the information recording medium, the information recording/reproducing apparatus writing and reading information to and from the information recording medium while reciprocally moving the card transport stage and linearly and reciprocally moving the information recording medium and applying a laser beam to the information recording medium, wherein the apparatus comprising a transport unit wherein the plane of driving force by driving means for reciprocally moving the card transport stage is made substantially flush with the center of a guide shaft for sliding the transport stage.
    • 一种具有磁路和动圈的线性电动机,所述磁路包括设置在所述电路中心的线性磁轭和一对直线磁铁,所述直线磁轭和所述一对直线磁铁形成一对线性间隙, 线性磁轭插入其间,磁路向线性间隙施加磁场,当可动线圈通电时,安装在磁路的线性磁轭上的可动线圈通过电磁作用沿线性磁轭移动到磁路, 其中线性磁体在线性磁体的纵向上的相对端部处的磁力大于中间区域,磁路的磁阻变大,以获得对应于磁性的可动线圈的驱动电流 当动线圈在线性磁体的中间区域移动时,或者磁路安装在由材料制成的板上的磁阻 具有与线性磁轭相同的磁阻。 一种信息记录/再现装置,具有用于传送信息记录介质的卡传送台和用于向信息记录介质辐射激光束的激光单元,信息记录/再现装置向信息记录介质写入和读取信息,同时 相互移动卡传送台并且线性地并且往复地移动信息记录介质并将激光束施加到信息记录介质,其中该装置包括传送单元,其中通过用于使卡传送台往复运动的驱动装置的驱动力平面是 与导向轴的中心大致齐平,用于滑动输送台。
    • 7. 发明授权
    • Optical information recording device and method for detecting and
verifying recorded information
    • 用于检测和验证记录信息的光信息记录装置和方法
    • US5909418A
    • 1999-06-01
    • US514590
    • 1995-08-15
    • Kazuo NodaKoichi Yamazaki
    • Kazuo NodaKoichi Yamazaki
    • G11B7/00G11B7/0033G11B7/004G11B7/0045G11B7/09G11B7/13G11B7/135G11B20/18
    • G11B7/131G11B20/1816G11B7/0045G11B7/0903G11B7/1353G11B7/0033
    • A laser light beam generated from a light source is divided by a diffraction grating into a plurality of light beams, i.e., a single main beam to be used for recording information and plural auxiliary beams distributed on two imaginary straight lines crossing each other. One of the straight lines extends parallel to tracks of a recording medium. The resultant divided beams are converged to be irradiated onto a recording medium, and reflected components, from the recording medium, of the beams are received by corresponding light receiving elements. Thus, the main and auxiliary beams distributed on one of the two imaginary straight lines are used to perform focusing and tracking. Further, one of the two auxiliary beams distributed on the other straight line are used to determine whether a track where information is to be recorded is a blank area or not, and the other of the auxiliary beams is used to verify whether the information has been recorded correctly.
    • 从光源产生的激光束被衍射光栅分割为多个光束,即用于记录信息的单个主光束和分布在彼此交叉的两个假想直线上的多个辅助光束。 一条直线平行于记录介质的轨道延伸。 所得到的分束被会聚以照射到记录介质上,并且来自记录介质的光束的反射分量被相应的光接收元件接收。 因此,分布在两条假想直线之一上的主光束和辅助光束用于进行聚焦和跟踪。 此外,分配在另一直线上的两个辅助光束中的一个用于确定要记录信息的轨道是否为空白区域,另一个辅助光束用于验证信息是否已经被 记录正确
    • 8. 发明授权
    • Method of and apparatus for recording and reproducing optical information
    • 用于记录和再现光学信息的方法和装置
    • US5696368A
    • 1997-12-09
    • US572084
    • 1995-12-14
    • Kazuo NodaKoichi YamazakiHiroaki Yoshida
    • Kazuo NodaKoichi YamazakiHiroaki Yoshida
    • G11B7/00G11B7/0033G11B7/004G11B7/0045G11B7/005G11B7/125G11B7/08
    • G11B7/126G11B7/0033G11B7/0045G11B7/005
    • In an optical information recording and reproducing apparatus, information is recorded or reproduced by moving a recording medium relative to an optical head. In order to execute information recording onto the medium in the course of the relative movement involving acceleration and deceleration, the generation timing and intensity of a light beam to be generated in correspondence with the information to be recorded are controlled in response to a varying speed of the relative movement so that data pits to be formed in the recording medium can be standardized in pitch and size irrespective of the relative movement speed. Also, in order to permit information reproduction from the medium in the course of the relative movement involving acceleration and deceleration, reproduction timing of data read by the optical head is set in synchronism with variation in the relative movement speed so that the data can be reproduced at proper timing irrespective of the relative movement speed. With such arrangements, there can be achieved a highly increased information recording/reproduction speed, extended information recording area, reduced size and cost of the apparatus, and reduced power consumption in the apparatus.
    • 在光学信息记录和再现装置中,通过相对于光学头移动记录介质来记录或再现信息。 为了在涉及加速和减速的相对运动的过程中执行在介质上的信息记录,将根据要记录的信息产生的光束的产生定时和强度被响应于 相对运动,使得可以在记录介质中形成的数据凹坑能够以相对移动速度的间距和大小被标准化。 此外,为了允许在涉及加速和减速的相对运动的过程中从介质进行信息再现,由光头读取的数据的再现定时与相对移动速度的变化同步地设置,使得可以再现数据 在适当的时间,无论相对移动速度如何。 通过这样的布置,可以实现高度增加的信息记录/再现速度,扩展信息记录区域,减小设备的尺寸和成本,以及降低设备中的功耗。