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    • 3. 发明授权
    • Method of multiplex transmission
    • 复用传输方法
    • US5272699A
    • 1993-12-21
    • US881294
    • 1992-05-11
    • Yoshikazu NobutokiMasao HideshimaShigeyuki SatomuraAkira Sone
    • Yoshikazu NobutokiMasao HideshimaShigeyuki SatomuraAkira Sone
    • B60R16/02B60R16/023B60R16/03H04L12/413H04L29/14H04Q9/00H04J3/00
    • H04L69/40B60R16/0315H04L2012/40273
    • A method of multiplex transmission for effecting multiplex transmission among a plurality of multiplex nodes is disclosed. The multiplex nodes are connected to a transmission path in which each multiplex node has its own node connection information for controlling its signal transmission and reception, and is capable of controlling and correcting the node connection information such that when a first multiplex node finds that a second multiplex node is in a normal state according to the node connection information of the first multiplex node and the remaining multiplex nodes find that the second multiplex node is in an abnormal state according to the node connection information of the remaining multiplex nodes, and when it is recognized that there is inconsistency in the node connection information between the first multiplex node and the remaining multiplex nodes and that a state of the second multiplex node should be recognized as normal, the remaining multiplex nodes transmit a request signal, which request the second multiplex node to transmit a return-to-normal signal which represents that the second multiplex node as returned to normal. Wherein the remaining multiplex nodes transmit the request signal at a predetermined time after the recognition of the inconsistency if they have received no request signal transmitted from any other multiplex node by that time, the predetermined time differing from node to node, the remaining multiplex nodes transmit no request signal if they have received a request signal transmitted from any other multiplex node.
    • 公开了一种用于在多个多路复用节点之间进行多路复用传输的复用传输方法。 多路复用节点连接到传输路径,其中每个多路复用节点具有用于控制其信号发送和接收的自己的节点连接信息,并且能够控制和校正节点连接信息,使得当第一多路复用节点发现第二 多路复用节点根据第一多路复用节点的节点连接信息处于正常状态,其余多路复用节点根据剩余多路复用节点的节点连接信息发现第二多路复用节点处于异常状态, 认识到第一多路复用节点与剩余的多路复用节点之间的节点连接信息存在不一致,并且第二多路复用节点的状态应被正常识别,剩余的多路复用节点发送请求信号,该请求信号请求第二多路复用节点 以发送表示第二个的返回正常信号 多路复用节点恢复正常。 其余的多路复用节点在识别出不一致之后的预定时间发送请求信号,如果它们没有接收到从该时间起从任何其他多路复用节点发送的请求信号,则不同于节点的预定时间,剩余的多路复用节点发送 如果他们已经接收到从任何其他多路复用节点发送的请求信号,则无请求信号。
    • 10. 发明授权
    • Apparatus for reproducing a digital signal
    • 用于再现数字信号的装置
    • US4630142A
    • 1986-12-16
    • US791518
    • 1985-10-25
    • Toshiyuki TaniYoshizumi InazawaToshihiko TakahashiShigeyuki Satomura
    • Toshiyuki TaniYoshizumi InazawaToshihiko TakahashiShigeyuki Satomura
    • G11B15/18G11B15/473G11B5/52
    • G11B15/1875G11B15/4731
    • Apparatus for reproducing digital signals recorded on a recording tape comprises a rotary drum about which a recording tape can be trained, a rotary head mounted in the drum, a transport mechanism for transporting the tape over the drum and rotating the head so that a relative speed is established between the head and the tape and the head scans the tape and generates reproduced digital signals in response to digital signals recorded on the tape, and a mode-control mechanism for controlling the transport mechanism so that the tape is transported over the drum at an absolute tape speed that can be varied. A servomechanism responsive to variations in the absolute tape speed adjusts the transport mechanism so that the head acquires a rotary speed such that the relative speed is restored to and maintained at a substantially constant value, not withstanding changes in the absolute tape speed effected under the control of the mode-control mechanism.
    • 用于再现记录在记录带上的数字信号的设备包括:旋转滚筒,记录带可以在其上被训练;安装在滚筒中的旋转头;传送机构,用于将磁带传送到滚筒上并旋转磁头,使得相对速度 建立在磁头和磁带之间,并且磁头扫描磁带并且响应于记录在磁带上的数字信号产生再现的数字信号,以及用于控制传送机构的模式控制机构,使得磁带在磁带和磁带上传送 绝对磁带速度可以变化。 响应于绝对磁带速度变化的伺服机构调节传送机构,使得磁头获得旋转速度,使得相对速度恢复并保持在基本上恒定的值,而不是在控制下实现的绝对磁带速度的变化 的模式控制机制。