Traveling state calculating devices
    72.
    发明授权
    Traveling state calculating devices 失效
    旅行状态计算装置

    公开(公告)号:US5585780A

    公开(公告)日:1996-12-17

    申请号:US262473

    申请日:1994-06-20

    摘要: In a traveling state calculating device, a sensing and sending unit senses the number of rotations of a wheel and sends by radio a signal indicative of the sensed number of rotations of the wheel to a calculating and displaying unit to thereby calculate and display the traveling speed and the covered distance. When the traveling state cannot be detected accurately due to interference of radio signals from other devices, the present traveling state calculating device senses the interference, and changes the frequency of the radio signal being used to another frequency to prevent continuation of the interference so as to calculate the traveling state accurately.

    摘要翻译: 在行驶状态计算装置中,感测和发送单元感测车轮的转数,并通过无线电发送表示车轮的感测转数的信号到计算和显示单元,从而计算并显示行驶速度 和覆盖距离。 当由于来自其他设备的无线电信号的干扰而不能准确地检测到行驶状态时,当前行驶状态计算装置感测到干扰,并且将正在使用的无线电信号的频率改变为另一个频率,以防止继续干扰,以便 准确计算行驶状态。

    Method of transmitting a group at least two measured values through an
optical transmission path
    73.
    发明授权
    Method of transmitting a group at least two measured values through an optical transmission path 失效
    通过光传输路径发送组至少两个测量值的方法

    公开(公告)号:US4864648A

    公开(公告)日:1989-09-05

    申请号:US10035

    申请日:1987-02-02

    CPC分类号: G08C19/24 G08C23/06

    摘要: A method of transmitting at least two measured values by means of light pulses which are passed by an optical transmitter through an optical transmission path to an optical receiver and whose relative separation in time is proportional to the measured value. The energy consumption for the optical transmission of the measured values is reduced by transmitting needle pulses cyclically, one after another in the same order of succession, in that per measured value an optical measuring pulse is transmitted, whose separation in time from the optical measuring pulse associated with a preceding measured value is proportional the magnitude of the measured value, and in that for each group of measured values an optical identification pulse is transmitted, whose distance in time from a preceding measuring pulse is smaller than the smallest possible distance in time between two successive optical measuring pulses.

    摘要翻译: 一种通过光脉冲传输至少两个测量值的方法,该光脉冲由光发送器通过光传输路径传递到光接收器,并且其时间上的相对间隔与测量值成比例。 测量值的光传输的能量消耗通过以相同的顺序依次传送针脉冲而循环地传送针脉冲而减少,因为每个测量值传输光学测量脉冲,其在时间上与光学测量脉冲的分离 与之前的测量值相关联的是与测量值的大小成比例,并且对于每组测量值,传输光学识别脉冲,其距前一测量脉冲的时间距离小于在时间上的最小可能距离 两个连续的光学测量脉冲。

    Apparatus for bidirectional data transmission
    74.
    发明授权
    Apparatus for bidirectional data transmission 失效
    双向数据传输装置

    公开(公告)号:US4796028A

    公开(公告)日:1989-01-03

    申请号:US039436

    申请日:1987-04-17

    摘要: An apparatus for bidirectional data transmission includes a predominantly stationary part with a data line connected to cause a phase shift of an osicllator signal for transmission to a predominantly mobile part. AC signal components of the oscillator signal received by the mobile part are formed into square wave pulses and a difference between high and low states of the pulses is indicative of a phase shift. During the high and low states, positive signal edges of a second oscillation frequency are counted and compared to one another so that predetermined difference causes a status change on a data output line in the mobile part.

    摘要翻译: 用于双向数据传输的装置包括主要是静止的部分,其中数据线被连接以引起用于传输到主要移动部分的转码器信号的相移。 由移动部件接收的振荡器信号的交流信号分量形成方波脉冲,并且脉冲的高低状态之间的差指示相移。 在高低状态期间,对第二振荡频率的正信号边缘进行计数并彼此比较,使得预定的差异导致移动部分中的数据输出线上的状态改变。

    Apparatus for remote temperature reading
    75.
    发明授权
    Apparatus for remote temperature reading 失效
    用于远程温度读数的设备

    公开(公告)号:US4399441A

    公开(公告)日:1983-08-16

    申请号:US226518

    申请日:1981-01-19

    摘要: An apparatus for remote temperature reading particularly for the reading of the temperature of an article or animal at a distance by means of an electromagnetically interrogatable label attached to or implanted in the article or animal the label being constructed to be capable of receiving an electromagnetic signal from a transmitter, converting the signal to a surface acoustic wave, passing the wave over a path on the label, reconverting the surface acoustic wave to an electromagnetic signal and retransmitting it to a receiver. The path of the surface acoustic wave is of a material such that the time of travel of the surface acoustic wave over the path is a function of the temperature of the path and thus of the label. The receiver is constructed to measure the time interval between electromagnetic signals produced by the passage of the surface acoustic wave past a transducer or transducers in the path and thereby provide an output indicative of the temperature of the environment of the label. It is preferred that the label includes a plurality of transducers at coded locations along the path arranged for retransmitting to the receiver a coded sequence of electromagnetic signals indicative of an article or animal to which the label is affixed or in which it is implanted in the manner described in U.S. Pat. No. 3,706,094.

    摘要翻译: 一种用于远程温度读数的装置,特别是通过附着在或植入物品或动物中的电磁询问标签远距读取物品或动物的温度,该标签被构造成能够接收来自 发射机,将信号转换成表面声波,将波通过标签上的路径,将表面声波重新转换为电磁信号并将其重新发送到接收机。 表面声波的路径是使声表面波在路径上行进的时间是路径的温度和标签的温度的函数的材料。 接收机被构造成测量通过声表面波通过传感器或路径中的换能器产生的电磁信号之间的时间间隔,从而提供指示标签的环境温度的输出。 优选地,标签包括沿着路径的编码位置处的多个换能器,其被布置用于向接收器重传指示标签贴附在其上或以其被植入的方式的植物或动物的编码序列的电磁信号 在美国专利中描述。 3,706,094。

    Remote control system
    76.
    发明授权
    Remote control system 失效
    遥控系统

    公开(公告)号:US4251812A

    公开(公告)日:1981-02-17

    申请号:US953494

    申请日:1978-10-23

    CPC分类号: H03J9/06 G08C19/22 G08C19/24

    摘要: A remote control apparatus is constituted by a command encoding device and a command decoding device. In the command encoding device, a timing pulse generator indicates the beginning and end of a time interval of a length which is a function of a command to be encoded, a pulse of the first duration shorter than said time interval is initiated in response to said beginning of the time interval, a pulse of a second duration different from said first duration and shorter than said time interval is initiated in response to said end of the time interval, and said pulses of said first and second duration respectively, are sequentially transmitted in the command decoding device, upon the receipt of a pulse of said first duration followed by a pulse of said second duration, a first indication is produced in response to the receipt of said pulse of the first duration and a second indication is produced in response to the receipt of said pulse of the second duration, and a device provides a value which varies as a function of the length of time between each said second indication which immediately precedes it, whereupon, a command signal is produced as a function of said value.

    摘要翻译: 遥控装置由命令编码装置和命令解码装置构成。 在命令编码装置中,定时脉冲发生器指示作为要编码的命令的函数的长度的时间间隔的开始和结束,响应于所述时间间隔开始比所述时间间隔短的第一持续时间的脉冲 响应于所述时间间隔的结束,启动与所述第一持续时间不同的第二持续时间并且短于所述时间间隔的第二持续时间的脉冲,并且所述第一和第二持续时间的所述脉冲分别以 所述命令解码装置在接收到所述第一持续时间的脉冲之后是所述第二持续时间的脉冲时,响应于接收到所述第一持续时间的所述脉冲而产生第一指示,并且响应于 接收到第二持续时间的所述脉冲,并且设备提供随每个所述第二指示之间的时间长度而变化的值, 因此,产生作为所述值的函数的命令信号。

    Data sampling apparatus
    77.
    发明授权

    公开(公告)号:US3764989A

    公开(公告)日:1973-10-09

    申请号:US3764989D

    申请日:1972-12-20

    发明人: MC CLELLAN R

    CPC分类号: G11B20/1419 H04L25/068

    摘要: Data sampling apparatus for sampling and storing the values of bits included in a plurality of binary coded signals applied to a corresponding plurality of input data lines. The binary coded signals are sampled repetitively and sequentially by a multiplexer unit and the sampled signals, each having a value of ''''0'''' or ''''1,'''' are applied to and stored in succession in a first plurality of shift registers. The shift registers are arranged to store a set, for example, four, of the most recent sampled signals derived from each of the binary coded signals. The sampled signals are examined at outputs of the shift registers by a mark-to-space detector to detect a set of the most recent sampled signals having particular values (e.g., 1100) indicating that a mark-to-space transition has occurred in a binary coded signal. At such time as this set of sampled signals is detected by the mark-to-space detector, a counter arrangement, including a second plurality of shift registers, is operated to provide successive binary counts at the outputs of the registers for the duration of the bit period following the detection of the aforesaid set of sampled signals. One of these binary counts, for example, a binary count of 15, is taken to represent the center of a bit period following a mark-to-space transition detected by the mark-to-space detector, and another of the binary counts, for example, a binary count of 31, is taken to represent the end of the bit period. Each binary count representing the center of a bit period is detected by a center-of-bit detector at which time a sampled signal representing the value of the bit in the bit period is transferred from the output of a selected one of the first plurality of shift registers to a bit value shift register. Each binary count representing the end of a bit is detected by an end-of-bit detector as a result of which the counting sequence for the bit period is determined and a new counting sequence is initiated for the next bit period.

    System for remote transmission of data and compensation of drifts
    78.
    发明授权
    System for remote transmission of data and compensation of drifts 失效
    远程传输数据和补偿的系统

    公开(公告)号:US3613060A

    公开(公告)日:1971-10-12

    申请号:US86534769

    申请日:1969-10-10

    发明人: LEGRAND BERNARD

    CPC分类号: G08C19/24

    摘要: The telemetering system comprises a fixed interrogator-receiver station and at least one moving transponder station. Each transponder haS a ramp generator for producing a linearly rising voltage and threshold discriminators for forming 2n pulses which define in pairs n time intervals representing respectively a reference quantity and n-l measured quantities. A direct current voltage linear integrator in the interrogator-receiver station comes into operation during said n time intervals. At the end of the first time interval a voltage comparator measures the difference between the voltage corresponding to the reference quantity and a local standard reference voltage. During the other n-l time intervals the integrator is controlled by the comparator for the correction of the integrations during said n-l intervals.