Velocity-measuring device
    41.
    发明授权
    Velocity-measuring device 失效
    速度测量装置

    公开(公告)号:US4911005A

    公开(公告)日:1990-03-27

    申请号:US242320

    申请日:1988-09-09

    CPC classification number: G01P3/54 A63B24/00 G01P5/07

    Abstract: A combination of a movable structure (adapted to ride on or over a surface while supporting or carrying at least one person) and a velocity-measuring device which includes means responsive to air flow develop an electrical signal representative of current velocity of the movable structure. A voice synthesizing means, responsive to the electrical signal representation of current velocity, provides periodic voice synthesized audible outputs indicative of current velocity of the movable structure. The movable structure may be a snow ski, a water ski or a skateboard, as well as a number of other sport participating implements, such as a bicycle, an ice boat and the like.

    Abstract translation: 可移动结构的组合(适于在支撑或携带至少一个人的同时骑在表面上或表面上)和包括响应于气流的装置的速度测量装置产生表示可移动结构的当前速度的电信号。 响应于当前速度的电信号表示的语音合成装置提供表示可移动结构的当前速度的周期性语音合成可听输出。 可移动结构可以是雪地滑雪,滑水或滑板,以及许多其它运动参与的工具,例如自行车,冰船等。

    Overlapped magnetoresistive displacement detecting transducers having
closely spaced longitudinal centers
    42.
    发明授权
    Overlapped magnetoresistive displacement detecting transducers having closely spaced longitudinal centers 失效
    具有紧密间隔的纵向中心的重叠磁阻位移检测换能器

    公开(公告)号:US4806860A

    公开(公告)日:1989-02-21

    申请号:US59941

    申请日:1987-06-09

    CPC classification number: G01D5/145 G01P3/487 G01P3/54

    Abstract: A magnetoresistive detection head for detecting relative displacement of a magnetic recording medium relative to the detection head includes two sets of magnetoresistive elements which change their respective resistances in response to changes in the intensity of a magnetic field generated by the magnetic recording medium during the relative displacement. The magnetoresistive elements are overlapped and spaced relative to each other by a specified space lag in the direction of the relative displacement. One set of magnetoresistive elements produce a sine output and the other a cosine output. The overlapping and precise spacing of the elements aligns the phases of the signal envelopes of the sine and cosine outputs, reducing reading errors when physical warps appear on the magnetic recording medium.

    Abstract translation: 用于检测磁记录介质相对于检测头的相对位移的磁阻检测头包括两组磁阻元件,它们响应于磁记录介质在相对位移期间产生的磁场强度的变化而改变其各自的电阻 。 磁阻元件在相对位移的方向上相对于彼此重叠并间隔规定的空间滞后。 一组磁阻元件产生正弦输出,另一组产生余弦输出。 元件的重叠和精确的间距使正弦和余弦输出的信号包络的相位对齐,从而在磁记录介质上出现物理翘曲时减少读取误差。

    Electronic discrimination circuitry for the highest frequency of a
plurality of input signals
    43.
    发明授权
    Electronic discrimination circuitry for the highest frequency of a plurality of input signals 失效
    用于多个输入信号的最高频率的电子鉴别电路

    公开(公告)号:US4321547A

    公开(公告)日:1982-03-23

    申请号:US105132

    申请日:1979-12-19

    CPC classification number: G01R23/005 G01P3/54 H03K5/26

    Abstract: In electronic discrimination circuitry each of a plurality of at least three analog input signals is converted to respective digital pulse output signals and to a number of multi-phase clocking signals equal in number to the plurality of input signals are also generated such that each of the plurality of at least three analog input signals is synchronized in response to a respective one of the multi-phase clocking signals, whereby at least the leading edge of each of the digital output signals is positioned into a time slot corresponding to the multi-phase clocking signals. Selected pairs of the synchronized digital output signals are sequentially compared to determine within each compared pair that digital output signal having a higher frequency and comparing that digital output signal with another digital output signal until the digital output signal having the highest frequency is selected.

    Abstract translation: 在电子鉴别电路中,多个至少三个模拟输入信号中的每一个被转换为相应的数字脉冲输出信号,并且还生成与多个输入信号相等数量的多个多相时钟信号,使得 多个至少三个模拟输入信号响应于多相时钟信号中的相应时钟信号同步,由此至少每个数字输出信号的前沿位于对应于多相时钟的时隙 信号。 顺序地比较所选择的同步数字输出信号对,以确定每个比较对中的数字输出信号具有较高的频率,并将该数字输出信号与另一数字输出信号进行比较,直到选择具有最高频率的数字输出信号为止。

    Digital speedometer for indicating velocity in at least two selectable
units of measurement
    44.
    发明授权
    Digital speedometer for indicating velocity in at least two selectable units of measurement 失效
    数字速度计,用于在至少两个可选择的测量单位中指示速度

    公开(公告)号:US4158172A

    公开(公告)日:1979-06-12

    申请号:US857539

    申请日:1977-12-05

    CPC classification number: G01R23/10 G01P3/489 G01P3/54

    Abstract: A digital speedometer for indicating angular or linear velocity has an index counter to control update of the displayed velocity. The purpose of the index counter is to prevent undesirable fluctuation of the displayed velocity where minor variations in velocity being measured have occurred. The digital speedometer uses a pulsating input signal having a frequency proportional to the velocity to be indicated. An oscillator circuit provides a clock frequency that is utilized in generating a counting period electrical signal. During the counting period, the input pulses proportional to velocity are gated into a counter. After each counting period, a comparison is made between the count currently being displayed and the count stored in the counter. If a difference occurs, the index counter is incremented. Only after the index counter has been incremented a plurality of consecutive times is the display permitted to be updated.

    Abstract translation: 用于指示角速度或线性速度的数字速度计具有用于控制显示速度的更新的索引计数器。 指数计数器的目的是防止在测量的速度发生微小变化的显示速度的不期望的波动。 数字速度计使用具有与速度成比例的频率的脉动输入信号来指示。 振荡器电路提供用于产生计数周期电信号的时钟频率。 在计数期间,与速度成比例的输入脉冲被选通到计数器中。 在每个计数周期之后,在当前显示的计数与存储在计数器中的计数之间进行比较。 如果发生差异,则索引计数器递增。 只有在索引计数器递增之后,多个连续的时间是允许更新的显示。

    Method and apparatus for forming on a moving magnetic material a magnetized mark of prescribed width regardless of variations of speed of moving magnetic body
    45.
    发明授权
    Method and apparatus for forming on a moving magnetic material a magnetized mark of prescribed width regardless of variations of speed of moving magnetic body 失效
    用于在移动磁性材料上形成具有规定宽度的磁化标记的方法和装置,而不管运动磁体的速度如何变化

    公开(公告)号:US3873912A

    公开(公告)日:1975-03-25

    申请号:US40552973

    申请日:1973-10-11

    CPC classification number: H01F13/00 G01B7/046 G01P3/54

    Abstract: An apparatus for locally magnetizing moving magnetic material which comprises a coil for locally magnetizing the traveling magnetic material and a coil for detecting the magnetic flux of a locally magnetized spot, both coils being linearly arranged aside the magnetic material in its traveling direction; a pulse current generator for supplying the magnetizing coil with pulse current; an extraction device for extracting a signal denoting the speed of the traveling magnetic material out of a detection signal delivered from the magnetized spot-detecting coil; and a control device for controlling by the extracted signal the time width of output pulse current from the pulse current generator so as to cause the locally magnetized spot to have a fixed length extending along the magnetic material regardless of its traveling speed.

    Abstract translation: 一种用于局部磁化移动磁性材料的装置,其包括用于局部磁化行进磁性材料的线圈和用于检测局部磁化点的磁通的线圈,两个线圈沿其行进方向线性排列在磁性材料的旁边; 用于向磁化线圈提供脉冲电流的脉冲电流发生器; 提取装置,用于从从磁化点检测线圈传送的检测信号中提取表示行进磁性材料的速度的信号; 以及控制装置,用于通过提取的信号控制来自脉冲电流发生器的输出脉冲电流的时间宽度,以使得局部磁化点具有沿磁性材料延伸的固定长度,而不管其行进速度如何。

    Rotary head-type video tape magnetic recording and reproducing system
    46.
    发明授权
    Rotary head-type video tape magnetic recording and reproducing system 失效
    旋转头型视频磁带录音和再现系统

    公开(公告)号:US3662098A

    公开(公告)日:1972-05-09

    申请号:US3662098D

    申请日:1970-05-26

    CPC classification number: G11B27/024 G01P3/54

    Abstract: A rotary head-type video tape magnetic recording and reproducing system in which, at the time of recording, pulse signals are not only recorded on a running magnetic tape but are regenerated and a tape driving system is controlled in such a manner that the regenerated signals maintain a fixed phase relation with a reference signal; and in which, at the time of reproduction, said pulse signals are regenerated and the tape driving system is so controlled that the regenerated signals and a reference signal maintain a fixed relation between each other, thus facilitating the compiling and recording operation of the magnetic tape.

    Abstract translation: 一种旋转磁头式录像带磁记录和再现系统,其中在记录时,脉冲信号不仅记录在正在运行的磁带上,而且被再生,并且磁带驱动系统被控制为使得再生信号 保持与参考信号的固定相位关系; 并且其中,在再现时,所述脉冲信号被再生,并且磁带驱动系统受到如此控制,使得再生信号和参考信号保持彼此之间的固定关系,从而便于磁带的编译和记录操作 。

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