Self-healing data network and network node controller
    21.
    发明公开
    Self-healing data network and network node controller 失效
    自治数据网络和网络节点控制器

    公开(公告)号:EP0405756A3

    公开(公告)日:1993-05-12

    申请号:EP90305900.4

    申请日:1990-05-31

    IPC分类号: H04L12/42 H04L25/48

    CPC分类号: H04L12/437

    摘要: A self-healing data network and network node controller. Data transmission of data cells to form messages permitting self-clocking operation of each node and elastic buffering implemented to allow receipt of messages without regard to the phase of messages allows asynchronous operation of each node relative to other nodes. Fault detection and network self-­healing are performed by each node independently of other nodes.

    A system and method for the non-contact transmission of data
    22.
    发明公开
    A system and method for the non-contact transmission of data 无效
    系统和Verfahren zur kontaktlosenDatenübertragung。

    公开(公告)号:EP0492569A2

    公开(公告)日:1992-07-01

    申请号:EP91122099.4

    申请日:1991-12-23

    IPC分类号: G06K7/08 G06K19/07 H04L25/48

    CPC分类号: G06K7/0008 G06K19/0723

    摘要: A data transmission system for the non-contact transmission of data between a station (1) and a portable data carrier (2). The station (1) includes a station transmitter (3) operating at a predetermined frequency for generating a first signal and a demodulator (35) for detecting a second signal superimposed on the first signal. An antenna (5) is coupled via a length of cable (4) to the station transmitter (3) via a matching circuit (6) so as to be operative at said frequency regardless of the length of the cable (4). The portable data carrier (2) includes supply means (13) for coupling to a source of electric power and a data carrier tuned antenna circuit (10, 55) inductively coupled with the station transmitter (3) so as to receive power from the station (1). A data carrier data modulator (14) is provided for modulating the first signal with the second signal in response to data stored within the data carrier (2) and, by means of said inductive coupling, enabling the data to be transmitted from the data carrier (2) to the station (1).

    摘要翻译: 一种用于在站(1)和便携式数据载体(2)之间非接触传输数据的数据传输系统。 站(1)包括以预定频率工作以产生第一信号的站发射机(3)和用于检测叠加在第一信号上的第二信号的解调器(35)。 天线(5)经由匹配电路(6)经由电缆(4)的长度耦合到站发射机(3),以便与电缆(4)的长度无关地以所述频率工作。 便携式数据载体(2)包括用于耦合到电源的电源装置(13)和与电台发射器(3)感应耦合的数据载波调谐天线电路(10,55),以便从电台接收电力 (1)。 提供数据载体数据调制器(14),用于响应于存储在数据载体(2)内的数据,利用第二信号调制第一信号,并借助于所述电感耦合使数据能够从数据载体 (2)到车站(1)。

    Bi-Phase-Decoder
    26.
    发明公开
    Bi-Phase-Decoder 失效
    双相解码器。

    公开(公告)号:EP0101607A1

    公开(公告)日:1984-02-29

    申请号:EP83108122.9

    申请日:1983-08-17

    IPC分类号: H04L25/48 H04L7/02 H04L3/00

    CPC分类号: H04L25/4904

    摘要: Es wird eine Möglichkeit vorgestellt, wie Takt und Daten aus einem im Bi-Phase-Code übertragenen Datenstrom rückgewonnen werden können, auch wenn der Datenstrom keine Synchronisierbits enthält und seine Übertragungsgeschwindigkeit schwankt.
    Zur Taktrückgewinnung wird ein nicht nachtriggerbares Monoflop bei jedem Phasenwechsel angesteuert. Die zwischengeschobenen Phasenwechsel werden dadurch in ihrer Auswirkung unterdrückt. Mit dem Takt wird ein Speicher angesteuert, der zum richtigen Zeitpunkt die gültigen Daten aus dem übertragenen Datenstrom übernimmt und während je einer Taktzeit konstant hält.

    摘要翻译: 它提出了一种方法用于时钟和数据可以从在双相码流传输被恢复,即使数据流不包含同步位和改变其传输速度。 用于时钟恢复的非可再触发的单稳态触发器,在每个相位变化驱动。 相变之间被推被抑制方面的效果。 与时钟,存储器被触发,其在合适的时间接管从传送的数据流中的有效数据,并在每个时钟周期保持不变。

    Differentially coded and guard pulse position modulation for communication networks
    28.
    发明公开
    Differentially coded and guard pulse position modulation for communication networks 失效
    在Kommunikationsnetzwerken的“安德森”中,

    公开(公告)号:EP0595034A1

    公开(公告)日:1994-05-04

    申请号:EP93115534.5

    申请日:1993-09-27

    IPC分类号: H04L25/48

    CPC分类号: H04L25/4902 H04L1/08

    摘要: In a wireless infrared communications system, a technique for encoding data for serial transmission and the correlative technique for decoding the transmitted data. A data transmission period is divided into a plurality of slots. In a given pair of slots, the first slot comprises a gray code sequence of bits and a check bit, and the second slot comprises the same gray code sequence of bits and the complement of the check bit in the first slot. The last slot in a transmission time period comprises a guard slot to separate transmission time periods. A decoder receives the encoded data, and for a given slot derives calculated data for the slot from the gray code sequence of bits and the check bit. The check bit for the given slot is compared with a calculated check bit of the previous slot to determine if a predetermined relationship exists. If the predetermined relationship exists, the received encoded data is selected as the output of the decoder, and if the predetermined relationship does not exist, the calculated data is selected as the output of the decoder. The calculated check bit is derived from the output of the decoder for a slot, and is compared with the check bit of the encoded data for the following slot.

    摘要翻译: 在无线红外线通信系统中,编码用于串行传输的数据的技术和用于对所发送的数据进行解码的相关技术。 数据传输周期被分成多个时隙。 在给定的一对时隙中,第一时隙包括灰色码序列和校验位,并且第二时隙包括相同的灰色码序列和第一时隙中校验位的补码。 传输时间段中的最后一个时隙包括隔离传输时间段的保护时隙。 解码器接收编码数据,并且对于给定时隙,从灰度码序列和校验位导出用于时隙的计算数据。 将给定时隙的校验位与前一时隙的计算校验位进行比较,以确定是否存在预定关系。 如果存在预定关系,则接收到的编码数据被选择作为解码器的输出,如果不存在预定关系,则选择计算出的数据作为解码器的输出。 所计算的校验位从解码器的时隙的输出导出,并与下一个时隙的编码数据的校验位进行比较。

    Advance/retard control circuit with PDM accumulator and second order loopfilter
    29.
    发明公开
    Advance/retard control circuit with PDM accumulator and second order loopfilter 失效
    与PDM存储和二阶环路滤波器馈送/减速控制装置。

    公开(公告)号:EP0455038A2

    公开(公告)日:1991-11-06

    申请号:EP91106008.5

    申请日:1991-04-16

    IPC分类号: H04L7/033 H04L25/48

    CPC分类号: H04L7/0331

    摘要: A digital loop filter translates a multi-bit phase error input into a high resolution control signal utilizable as an advance-retard control for a multi-phase clock generator. The digital filter couples the multi-bit phase error input to the clock generator via a pulse density modulation (PDM) accumulator, providing multi-phase adjustment in a single sample clock cycle based on the overflow or underflow of the PDM accumulator. Variable PDM cycles are used to control loop filter bandwidth, permitting adjustable capture sequences. Thus, real proportional control of the multi-phase clock generator is limited only by the word size of the phase error input.

    摘要翻译: 数字环路滤波器反酸酯多比特相位误差输入到高分辨率控制信号可利用作为推进延迟角控制用于多相位时钟发生器。 数字滤波器耦合多比特相位误差输入到经由脉冲密度调制(PDM)累加器的时钟发生器,基于所述PDM累加器的溢出或下溢的单个采样时钟周期中提供多相位调节。 可变PDM周期被用来控制环路滤波器的带宽,从而允许可调节的捕捉序列。 因此,多相位时钟发生器的真实比例控制仅由相位误差输入的字大小的限制。