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    Adaptive error encoding in multiple access systems
    71.
    发明授权
    Adaptive error encoding in multiple access systems 失效
    多个访问系统中的自适应错误编码

    公开(公告)号：US4357700A

    公开(公告)日：1982-11-02

    申请号：US932579

    申请日：1978-08-10

    Applicant: Joseph A. Alvarez, III ,  Bruce D. Gobioff ,  Lynn P. West

    Inventor： Joseph A. Alvarez, III ,  Bruce D. Gobioff ,  Lynn P. West

    IPC: H03M13/35 ,  H04B7/15 ,  H04B7/185 ,  H04B7/212 ,  H04J3/00 ,  H04L1/00 ,  H04L1/02 ,  H04J3/16

    CPC classification number: H04L1/007 ,  H03M13/35 ,  H04B7/18519 ,  H04L1/0009 ,  H04L1/02 ,  H04L2001/0096

    Abstract: In a time division multiple access (TDMA) system, for "multi-path" data communication via satellite repeater, the form of transmitted data is varied adaptively to maintain error-free transmission under varying noise conditions. Adjustments are made on a path selective and channel selective basis to protect only the most vulnerable data in specific transmission paths experiencing noise deterioration. Accordingly any multi-channel burst may contain channels of data in both protected and unprotected forms. A predetermined portion of each channel containing data in unprotected format is used explicitly to designate the destination of the accompanying data and implicitly to distinguish the data format as unprotected. In protected format data including error protective coding is transmitted in two contiguous channels along with information in the first channel explicitly distinguishing the protected format. This format-distinguishing information occupies the space allotted in the unprotected format for designating the data destination. The destination of protectively encoded data is explicitly designated in a separate predetermined space in the associated double-channel slot.

    Abstract translation: 在时分多址（TDMA）系统中，对于经由卫星转发器的“多路径”数据通信，传输数据的形式自适应地变化，以在变化的噪声条件下维持无差错传输。 在路径选择性和频道选择性基础上进行调整，以保护只有经历噪声恶化的特定传输路径中最脆弱的数据。 因此，任何多信道突发都可以包含受保护和不受保护形式的数据信道。 显式地使用包含无保护格式的数据的每个通道的预定部分来指定伴随数据的目的地并隐含地将数据格式区分为未受保护的数据格式。 在保护格式中包括错误保护编码的数据在两个连续的信道中被传送，同时第一信道中的信息明确区分受保护的格式。 该格式识别信息占据用于指定数据目的地的不受保护格式分配的空间。 保护编码数据的目的地在关联的双通道时隙中的单独的预定空间中被明确指定。

    Data transmitting system
    73.
    发明授权
    Data transmitting system 失效
    数据传输系统

    公开(公告)号：US3828130A

    公开(公告)日：1974-08-06

    申请号：US35086573

    申请日：1973-04-13

    Applicant: FUJI ELECTRIC CO LTD

    Inventor： YAMAGUCHI T

    IPC: H04L1/00 ,  G06F11/14 ,  G06F13/00 ,  H04L1/02 ,  H04L7/04 ,  H04L7/06

    CPC classification number: H04L1/02 ,  H04L7/048

    Abstract: A data transmitting system disclosed here belongs to a method defined as a so-called serial data transmitting method for transmitting the data by converting it to a serial binary signal, and is composed as follows: data information is converted into a serial binary signal which is transmitted from the transmitting side to a first circuit of the signal transmission line at the same time an auxiliary signal formed by synthesizing logically the above data information and bit synchronous information synchronous therewith is transmitted to a second circuit of the signal transmission line, the data signals transmitted from the first and second circuits of the above signal transmission line and the auxiliary signal are compared logically so as to extract bit synchronous information at the receiving side; timing signals for extracting a bit are formed by the bit synchronous information signal; and the bit information of the data signal transmitted by way of the first circuit is, under the control of these timing signals extracted simultaneously with the measurement of the time interval of the timing signals and number signals, timing thereby detecting any error in the bit information of the data thus transmitted.

    Abstract translation: 这里公开的数据发送系统属于定义为所谓的串行数据发送方法的方法，用于通过将数据转换为串行二进制信号来发送数据，并且其组成如下：数据信息被转换为串行二进制信号 从信号传输线的发送侧发送到信号传输线的第一电路，同时通过逻辑地合成上述数据信息和与其同步的位同步信息而形成的辅助信号被发送到信号传输线的第二电路，数据信号 从上述信号传输线的第一和第二电路和辅助信号发送的信号被逻辑地比较，以便在接收侧提取比特同步信息; 用于提取位的定时信号由位同步信息信号形成; 并且通过第一电路发送的数据信号的位信息在与定时信号和数字信号的时间间隔的测量同时提取的这些定时信号的控制下，由此检测位信息中的任何错误 的数据。

    Method and circuit therefor for evaluation of received coded messages
    74.
    发明授权
    Method and circuit therefor for evaluation of received coded messages 失效
    用于评估接收到的编码信息的方法和电路

    公开(公告)号：US3593279A

    公开(公告)日：1971-07-13

    申请号：US3593279D

    申请日：1967-09-28

    Applicant: SIEMENS AG

    Inventor： PUMPE GERHARD

    IPC: H04L1/02 ,  H04L27/26 ,  H04L27/30 ,  H04B1/66 ,  H04L1/04

    CPC classification number: H04L1/02 ,  H04L27/26 ,  H04L27/30

    Abstract: A method and circuit therefor to evaluate successive received individual coded information signals identified by predetermined combinations of signals selected from a plurality of fixed frequency signals. Hold signals are transmitted between successive individual coded information signals and are evaluated at the receiver which, in the absence thereof, produces a corresponding error indication signal that may be applied to the transmitter. The hold signals comprise a particular combination of signals selected from said plurality of fixed frequency signals, and individual signals comprising said particular combination also comprise some of the predetermined combinations of signals corresponding to the individual coded information signals.

    Transient filter system
    75.
    发明授权
    Transient filter system 失效
    瞬态过滤系统

    公开(公告)号：US3568147A

    公开(公告)日：1971-03-02

    申请号：US3568147D

    申请日：1969-03-04

    Applicant: NORTH AMERICAN ROCKWELL

    Inventor： GILSON PAUL R

    IPC: G06F17/17 ,  H03K5/26 ,  H04L1/02 ,  G08C25/00

    CPC classification number: G06F17/17 ,  H03K5/26 ,  H04L1/02

    Abstract: Data samples transmitted from one location to another are separated in time and serially compared to determine transmission errors. Several sequential data samples are compared and the intermediate value of the monotonic order is selected as representing the true value. Transient errors which would cause a data sample to be in error are then automatically eliminated and the data sample having the value nearest the data sample caused to be in error is inserted in its place.

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