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    광디스크구동장치
    56.
    发明授权
    광디스크구동장치 失效
    光盘驱动装置

    公开(公告)号：KR1019910000647B1

    公开(公告)日：1991-01-31

    申请号：KR1019870012810

    申请日：1987-11-13

    Applicant: 삼성전자주식회사

    Inventor： 이재홍

    IPC: G11B20/18

    Abstract: The circuit for improving the writing circuit uses two buffer memories (3,8) and an inverter to compare the timing of input with reproduction data so that the error is detected precisely. The second buffer memory (8) provides the input data while the first buffer memory (3) provides the data (B) to a comparator (6) after an error rate detector (7) provides a normal writing signal (C) so that the writing speed from an input apparatus (2) to an optical disc (1) is improved. If the number of unequality between two data (A,B) of the comparator is greater than the reference value, the detector (7) regards this an error and provides low signal (C) to the second buffer which performs self-operation without supplying the output to the comparator (6) in this case. At this time, the first buffer memory (3) writes the data (B) on the disc (1) through a writing circuit (4) so that the fault data is prevented to write.

    Abstract translation: 用于改善写入电路的电路使用两个缓冲存储器（3,8）和逆变器来比较输入的定时与再现数据，从而精确地检测误差。 第二缓冲存储器（8）在误差率检测器（7）提供正常写入信号（C）之后提供输入数据，同时第一缓冲存储器（3）将数据（B）提供给比较器（6），使得 提高了从输入装置（2）到光盘（1）的写入速度。 如果比较器的两个数据（A，B）之间的不平等数量大于参考值，则检测器（7）将该错误认为是错误的，并且向没有供给的自动执行的第二缓冲器提供低信号（C） 在这种情况下，输出到比较器（6）。 此时，第一缓冲存储器（3）通过写入电路（4）将数据（B）写入盘（1），从而防止故障数据写入。

    광디스크 구동장치의 트래킹 서보장치
    57.
    发明授权
    광디스크 구동장치의 트래킹 서보장치 失效
    光盘驱动装置的跟踪伺服装置

    公开(公告)号：KR1019900002000B1

    公开(公告)日：1990-03-31

    申请号：KR1019860011677

    申请日：1986-12-31

    Applicant: 삼성전자주식회사

    Inventor： 이재홍

    IPC: G11B7/09

    Abstract: The circuit for preventing the mis-tracking caused by a large defect on a optical disc comprises a subtractor (D) calculating the difference signal (X) from two auxiliary optical pickup signals (A",B"), a signal level detector (F) comparing the difference signal to limit signals, a delay circuit (L) delaying the difference signal for signal transmission time of the signal comparator, a control circuit (G) passing the difference signal to an amplifier (H) when the output of the signal comparator is in low state but to a RC circuit (I) in opposite case. The RC circuit reduces the large difference signal to small one (K) and feedbacks it to the control circuit when the large difference signal caused by the disc defect is entered.

    Abstract translation: 用于防止光盘上的大缺陷引起的误跟踪的电路包括从两个辅助光拾取信号（A“，B”），信号电平检测器（F）计算差分信号（X）的减法器（D） ）将所述差分信号与限幅信号进行比较;延迟电路（L），延迟所述信号比较器的信号传输时间的差信号;当所述信号的输出信号通过所述差分信号到所述放大器（H）时，控制电路 比较器处于低电平状态，而是相反的情况下是RC电路（I）。 当输入由光盘缺陷引起的大的差异信号时，RC电路将大差分信号减小到小（K）并将其反馈给控制电路。

    튜너블 배리어를 구비한 그래핀 스위칭 소자
    60.
    发明公开
    튜너블 배리어를 구비한 그래핀 스위칭 소자 审中-实审
    具有可调节障碍物的石墨切换装置

    公开(公告)号：KR1020140054744A

    公开(公告)日：2014-05-09

    申请号：KR1020120120611

    申请日：2012-10-29

    Applicant: 삼성전자주식회사 ,  서울대학교산학협력단

    Inventor： 이재호 ,  박성준 ,  변경은 ,  서형석 ,  송현재 ,  신형철 ,  이재홍 ,  정현종 ,  허진성

    IPC: H01L29/08 ,  H01L29/12

    CPC classification number: H01L29/78 ,  H01L29/1606 ,  H01L29/407 ,  H01L29/66977 ,  H01L29/772 ,  H01L29/872 ,  H01L29/88

    Abstract: Disclosed is a graphene switching device having a tunable barrier. The disclosed graphene switching device includes a first electrode and an insulating layer which are respectively arranged in a first region and a second region which are separated from each other on a conductive semiconductor substrate, a graphene layer which is extended from the insulating layer to the first electrode on the substrate and is separated from the first electrode, a second electrode which faces the insulating layer on the graphene layer, a gate electrode above the graphene layer, and a first well which has a region of the substrate which touches the lower part of the graphene layer which is doped with impurity. The first wall has an energy barrier which is between the graphene layer and the first electrode.

    Abstract translation: 公开了一种具有可调屏障的石墨烯开关装置。 所公开的石墨烯开关装置包括分别布置在导电半导体衬底上彼此分离的第一区域和第二区域中的第一电极和绝缘层，从绝缘层延伸到第一区域的石墨烯层 电极与第一电极分离，面对石墨烯层上的绝缘层的第二电极，石墨烯层上方的栅极电极和第一阱，该第一阱具有接触下述部分的基板的下部 掺杂有杂质的石墨烯层。 第一壁具有在石墨烯层和第一电极之间的能量势垒。

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