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    Magnetic heading reference
    1.
    发明授权
    Magnetic heading reference 失效
    磁头参考

    公开(公告)号：US3943763A

    公开(公告)日：1976-03-16

    申请号：US531647

    申请日：1974-12-11

    Applicant: Howell D. Garner

    Inventor： Howell D. Garner

    IPC: G01R33/04 ,  G01C17/28 ,  G01C17/30 ,  G01C17/38 ,  G01C21/00

    CPC classification number: G01C17/38 ,  G01C17/30

    Abstract: This invention employs a magnetometer as a magnetic heading reference for a vehicle such as a small aircraft. The magnetometer is mounted on a directional dial in the aircraft in the vicinity of the pilot such that it is free to turn with the dial about the yaw axis of the aircraft. The invention includes a circuit for generating a signal proportional to the northerly turning error produced in the magnetometer due to the vertical component of the earth's magnetic field. This generated signal is then subtracted from the output of the magnetometer to compensate for the northerly turning error.

    Abstract translation: 本发明使用磁力计作为诸如小型飞行器的车辆的磁性方向基准。 磁力计安装在飞行员附近的飞行员的定向拨盘上，使其随着拨盘绕飞机的偏航轴自由转动。 本发明包括一个电路，用于产生与由于地球磁场的垂直分量而在磁力计中产生的北极转向误差成比例的信号。 然后从磁力计的输出中减去该生成的信号，以补偿北极转向误差。

    Safety light
    2.
    发明授权
    Safety light 失效
    安全灯

    公开(公告)号：US3818428A

    公开(公告)日：1974-06-18

    申请号：US19737771

    申请日：1971-11-10

    Applicant: PHIPPS A ,  HOWELL D

    Inventor： PHIPPS A ,  HOWELL D

    IPC: B63B22/00 ,  B63B45/00

    CPC classification number: B63B22/003 ,  B63B2201/08 ,  B63B2209/02 ,  F21W2111/04

    Abstract: The specification discloses a floating marine safety light having a pressure actuated switch which enables the light to be carried or stored in an upright position with the circuit open and which will make contact to close the electric circuit to illuminate a safety light when the light is immersed in water. Further, the invention includes means for compensating pressure changes in the light to prevent accidental actuation of the pressure switch due to thermal fluctuations. The invention also includes means for impeding or retarding descent of the safety light when dropped from high elevations, such as from a low flying aircraft.

    Abstract translation: 本说明书公开了一种具有压力致动开关的浮动海上安全灯，其使得光可以在电路打开的同时被携带或存储在直立位置，并且当光被浸入时将使接触闭合电路以照亮安全灯 在水里。 此外，本发明包括用于补偿光中的压力变化以防止由于热波动引起的压力开关的意外致动的装置。 本发明还包括用于阻止或延迟从高高度（例如从低飞行飞行器）掉落时安全灯下降的装置。

    Diversity reception system
    6.
    发明授权
    Diversity reception system 失效
    多样性接收系统

    公开(公告)号：US4293955A

    公开(公告)日：1981-10-06

    申请号：US131029

    申请日：1980-03-17

    Applicant: Marvin M. Gehr ,  Howell D. Pabian

    Inventor： Marvin M. Gehr ,  Howell D. Pabian

    IPC: H04B7/08 ,  H04B1/16

    CPC classification number: H04B7/084

    Abstract: To reduce fading in a diversity receiver, the signals received on two spaced-apart antennas are added together without phase shift while amplitude of the sum is above a certain threshold. When the signal falls below the threshold, the signal from a squelch detector causes the sum amplitude to be stored and then a 180.degree. time delay to be inserted between one of the antennas and the adding circuit, after which time, the new sum amplitude is compared with the stored signal amplitude. If the new signal has increased or remained the same, the 180.degree. phase shift remains in place but, if it has deteriorated, it is removed and the circuit reset.

    Abstract translation: 为了减少分集接收机中的衰落，在两个间隔开的天线上接收的信号在没有相移的情况下被相加在一起，而和的振幅高于某个阈值。 当信号下降到阈值以下时，来自静噪检测器的信号使和振幅被存储，然后在天线和加法电路之间插入180°的时间延迟，此后新的和振幅为 与存储的信号幅度相比。 如果新信号增加或保持不变，则180°相移保持原位，但如果其变差，则将其移除并重新设置电路。

    Magnetic heading reference
    7.
    发明授权
    Magnetic heading reference 失效
    磁头参考

    公开(公告)号：US4006631A

    公开(公告)日：1977-02-08

    申请号：US623156

    申请日：1975-10-16

    Applicant: Howell D. Garner

    Inventor： Howell D. Garner

    IPC: G01C17/30 ,  G01C17/38 ,  G01C21/00

    CPC classification number: G01C17/38 ,  G01C17/30

    Abstract: This invention employs a magnetometer as a magnetic heading reference for a vehicle such as a small aircraft. The magnetometer is mounted on a directional dial in the aircraft in the vicinity of the pilot such that it is free to turn with the dial about the yaw axis of the aircraft. The invention includes a circuit for generating a signal proportional to the northerly turning error produced in the magnetometer due to the vertical component of the earth's magnetic field. This generated signal is then subtracted from the output of the magnetometer to compensate for the northerly turning error.

    Abstract translation: 本发明使用磁力计作为诸如小型飞行器的车辆的磁性方向基准。 磁力计安装在飞行员附近的飞行员的定向拨盘上，使其随着拨盘绕飞机的偏航轴自由转动。 本发明包括一个电路，用于产生与由于地球磁场的垂直分量而在磁力计中产生的北极转向误差成比例的信号。 然后从磁力计的输出中减去该生成的信号，以补偿北极转向误差。

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