PCM signal reproducing apparatus including error/erasure correction
circuit
    31.
    发明授权
    PCM signal reproducing apparatus including error/erasure correction circuit 失效
    PCM信号再现装置包括错误/消除校正电路

    公开(公告)号:US4829525A

    公开(公告)日:1989-05-09

    申请号:US112035

    申请日:1987-10-23

    摘要: A digital signal reproducing apparatus reproduces coded digital signal data which have been recorded on a magnetic tape. The digital signal reproducing apparatus includes first and second decoders. These decoders perform the error correction and erasure correction. The second decoder has a higher error detection capability than that of the first decoder. The reproducing apparatus further includes a checking circuit for checking code errors contained in the coded digital signal data. When the code errors detected by the checking circuit may occur simultaneously, a first editing-point detection signal is produced. When the first editing-point detection signal is output, a judgement is done that the editing-point may exist in the digital signal data, and the first decoder is changed to the second decoder for a predetermined time period. When the second decoder detects correction-prohibited data portion, a second editing-point detection signal. Upon receipt of the second editing-point detection signal, the cross-fade process is carried out for the digital signal data by an editing processor.

    摘要翻译: 数字信号再现装置再现已经记录在磁带上的编码数字信号数据。 数字信号再现装置包括第一和第二解码器。 这些解码器执行纠错和擦除校正。 第二解码器具有比第一解码器更高的错误检测能力。 再现装置还包括用于检查包含在编码数字信号数据中的码错误的检查电路。 当由检查电路检测到的代码错误可能同时发生时,产生第一编辑点检测信号。 当输出第一编辑点检测信号时,判断编辑点可能存在于数字信号数据中,并且第一解码器被改变到第二解码器预定的时间段。 当第二解码器检测到校正禁止数据部分时,第二编辑点检测信号。 在接收到第二编辑点检测信号时,由编辑处理器对数字信号数据执行交叉淡入淡出处理。

    Decoder for decoding a two-stage encoded code
    32.
    发明授权
    Decoder for decoding a two-stage encoded code 失效
    用于解码两级编码的解码器

    公开(公告)号:US4682333A

    公开(公告)日:1987-07-21

    申请号:US748402

    申请日:1985-06-24

    CPC分类号: H03M13/29

    摘要: A decoder for decoding a code C which is two-stage encoded by a C.sub.1 code ((N, K, D) Q dimensional code) and a C.sub.2 code ((n, k, d) q dimensional code), which includes: a C.sub.1 decoder including an error correction means for conducting an error correction of the errors below the number [(D-1)/2] to output the decoded word, and a weight generator which generates wj (j=1, 2, . . . , n) when i (i=0 to [(D-1)/2 ]) errors are corrected and an error detection (correction disability) is judged; a C.sub.2 decoder for decoding the C.sub.2 code including a forfeiture error correction means for judging the position j of the wj among the weight vector w in the received word r which is obtained in accordance with the decoded word output from the C.sub.1 decoder, and conducting a forfeiture error decoding. A weighted distance calculating means for calculating the weighted distance .rho..sup.(k) between the decoded word r.sup.(k) and the received word r when a decoded word in each of K=0, 1, . . . , [(D-1)/2] is obtained; the C.sub.2 decoder also including a comparator for comparing the weighted distance .rho..sup.(k) and the integer .tau., outputs the decoded word r.sup.(k) as a correct decoded word when the .rho..sup.(k) is smaller than or equal to .tau., and the correction disability signal when the .rho..sup.(k) is larger than .tau. or no decoded word is obtained by the forfeiture error correction means.

    摘要翻译: 用于对由C1码((N,K,D)Q维码)进行两级编码的码C和C2码((n,k,d)q维码)的解码器,其包括: C1解码器,包括用于对数字[(D-1)/ 2]以下的误差进行误差校正的误差校正装置,以输出解码字;以及权重发生器,其生成wj(j = 1,2,..., ,n)当i(i = 0至[(D-1)/ 2])错误被校正并且错误检测(校正残差)被判断时; C2解码器,用于对包括无效纠错装置的C2码进行解码,用于根据从C1解码器输出的解码字获得的接收字r中的加权矢量w中的wj的位置j, 没收错误解码。 一种加权距离计算装置,用于当K = 0,1,...中的每个解码字时,计算解码字r(k)和接收字r之间的加权距离rho(k)。 。 。 ,[(D-1)/ 2] C2解码器还包括用于比较加权距离rho(k)和整数τ的比较器,当rho(k)小于或等于τ时,将解码字r(k)输出为正确解码字,并且 校正残差信号,当rho(k)大于τ或无解码字时,由没收错误校正装置获得。

    REPAIR DEVICE
    33.
    发明申请
    REPAIR DEVICE 有权
    维修设备

    公开(公告)号:US20120308321A1

    公开(公告)日:2012-12-06

    申请号:US13519442

    申请日:2010-12-20

    申请人: Ken Onishi

    发明人: Ken Onishi

    IPC分类号: B23B41/00 B23B29/32

    摘要: This repair device includes a casing, a slide shaft slidably arranged with respect to the casing, a turn table rotatably arranged with respect to the slide shaft, and a cutting mechanism installed on the turn table and including cutting tools. The turn table is rotationally displaced while the slide shaft slides in an axial direction, so that the cutting tools helically turn to cut an inner periphery of a nozzle. The cutting mechanism includes a cutting-tool switching unit that switches the cutting tools.

    摘要翻译: 该修理装置包括壳体,相对于壳体可滑动地布置的滑动轴,相对于滑动轴可转动地设置的转台以及安装在转台上并包括切削工具的切割机构。 转动台在滑动轴沿轴向滑动时被旋转移位,使得切割工具螺旋地转动以切割喷嘴的内周。 切割机构包括切割工具的切割工具切换单元。

    NOZZLE STUB WORKING SYSTEM FOR REACTOR VESSEL
    34.
    发明申请
    NOZZLE STUB WORKING SYSTEM FOR REACTOR VESSEL 有权
    用于反应器船的喷嘴工作系统

    公开(公告)号:US20120027154A1

    公开(公告)日:2012-02-02

    申请号:US13263938

    申请日:2010-05-26

    IPC分类号: G21C17/003 G21C19/02

    摘要: Disclosed is a nozzle stub working system for a reactor vessel that performs work inside a nozzle stub of the reactor vessel, the nozzle stub working system for the reactor vessel including: a platform unit that is provided at an upper portion inside the reactor vessel and includes a substantially cylindrical side wall portion and a bottom portion blocking the lower end of the side wall portion; an access window that is provided at the side wall portion of the platform unit to allow the inside of the platform unit to communicate with the nozzle stub; an access window moving device that opens and closes the access window; a working device that advances from the inside of the platform unit to the inside of the nozzle stub to perform work inside the nozzle stub; and a control device that is provided at the outside of the reactor vessel and controls the access window moving device and the working device, wherein the control device drives the access window moving device to open the access window, drives the working device to perform work inside the nozzle stub, and then drives the access window moving device to close the access window after the performance of the work.

    摘要翻译: 公开了一种用于反应堆容器的喷嘴短截线工作系统,其在反应堆容器的喷嘴短管内部进行工作,该反应堆的喷嘴短截线工作系统包括:平台单元,设置在反应堆容器内部的上部, 大致圆筒形的侧壁部和阻挡侧壁部的下端的底部; 设置在所述平台单元的侧壁部分以允许所述平台单元的内部与所述喷嘴短柱连通的进入窗口; 访问窗口移动装置,其打开和关闭访问窗口; 工作装置,其从平台单元的内部前进到喷嘴短管的内部,以在喷嘴短管内进行工作; 以及控制装置,其设置在所述反应堆容器的外部并且控制所述进入窗移动装置和所述作业装置,其中,所述控制装置驱动所述访问窗移动装置打开所述访问窗口,驱动所述工作装置进行内部的工作 喷嘴短管,然后驱动访问窗口移动设备关闭工作后的访问窗口。