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    Analog-to-digital converter
    12.
    发明授权
    Analog-to-digital converter 失效
    模拟数字转换器

    公开(公告)号：US3634854A

    公开(公告)日：1972-01-11

    申请号：US3634854D

    申请日：1969-02-07

    Applicant: GEN TIME CORP

    Inventor： ANDERSON WILMER C

    IPC: H03K7/08 ,  H03M1/00 ,  H03K13/02

    CPC classification number: H03K7/08 ,  H03M1/50

    Abstract: An analog-to-digital conversion system in which a pulse width modulator is provided for producing a primary pulse having a width representative of a variable and in which the variable width pulse is used to gate a stream of higher frequency pulses from an auxiliary oscillator to a multistage binary counter. This auxiliary oscillator is disconnected at the completion of the primary pulse, and the binary coded number, stored in the counter, is read out, stage by stage, onto an output line. Upon completion of readout the count in the binary counter is set to zero in readiness for reconnection to the auxiliary oscillator upon receipt of the next variable width primary pulse of first polarity. In one of the aspects of the invention an improved pulse width modulator is provided in the form of a free-running oscillator having a symmetrical circuit including a saturable core reactor with windings for driving the core alternately to saturation in opposite directions and in which a modulation winding is subjected to variable modulating current from a transducer so that pulses of first polarity are produced having a pulse width which depends upon the condition of the transducer.

    Abstract translation: 一种模数转换系统，其中提供脉冲宽度调制器用于产生具有代表变量的宽度的主脉冲，并且其中可变宽度脉冲用于将来自辅助振荡器的较高频率脉冲流门控到 一个多级二进制计数器。 该辅助振荡器在主脉冲完成时断开，存储在计数器中的二进制编码数字逐个读出到输出线上。 在完成读出时，二进制计数器中的计数器被设置为零，以便在接收到第一极性的下一可变宽度主脉冲时重新连接到辅助振荡器。 在本发明的一个方面，改进的脉冲宽度调制器以自由运行的振荡器的形式提供，该振荡器具有对称电路，该​​对称电路包括可饱和核心电抗器，其具有交替地驱动该芯以相反方向饱和的绕组，并且其中调制 绕组经受来自换能器的可变调制电流，使得产生具有取决于换能器状态的脉冲宽度的第一极性的脉冲。

    Electret motors capable of continuous rotation
    13.
    发明授权
    Electret motors capable of continuous rotation 失效
    电动马达可连续旋转

    公开(公告)号：US3696258A

    公开(公告)日：1972-10-03

    申请号：US3696258D

    申请日：1970-07-30

    Applicant: GEN TIME CORP

    Inventor： ANDERSON WILMER C ,  WINDEBANK ROBERT W

    IPC: G04C3/16 ,  H02N1/00

    CPC classification number: G04C3/16 ,  H02N1/004 ,  Y10S55/39

    Abstract: An electric motor comprises a rotor including a plurality of electret portions and a stator including an array of fixed electrode pairs for driving the electret rotor in response to an applied AC voltage. A significant advantage of this motor is the fact that it does not require either wound conductive coils or a laminated metal core; consequently, it can be more easily fabricated than typical prior art motors. In a preferred embodiment, the rotor comprises a rotatably mounted circular disc including a plurality of electret portions disposed at equal angular intervals around the rotor disc. The stator can comprise a pair of fixed discs, having a plurality of opposing electrode portions.

    Abstract translation: 电动机包括：转子，其包括多个驻极体部分;以及定子，其包括用于响应于施加的交流电压驱动驻极体转子的固定电极对的阵列。 该电动机的显着优点在于其不需要卷绕的导电线圈或层压金属芯; 因此，可以比典型的现有技术的电动机更容易地制造。 在优选实施例中，转子包括可旋转地安装的圆盘，其包括围绕转子盘以相等的角度间隔设置的多个驻极体部分。 定子可以包括一对固定盘，其具有多个相对的电极部分。

    Presetter for timers
    14.
    发明授权
    Presetter for timers 失效
    定时器预设

    公开(公告)号：US3564426A

    公开(公告)日：1971-02-16

    申请号：US3564426D

    申请日：1969-01-22

    Applicant: GEN TIME CORP

    Inventor： ANDERSON WILMER C ,  CRUGER RICHARD

    IPC: G04F1/00 ,  H03K23/66 ,  H03K21/32

    CPC classification number: H03K23/665 ,  G04F1/005

    Abstract: A PRESET TIMER SYSTEM INCLUDING A TIMER WHICH NORMALLY COUNTS AT A REAL TIME RATE AND PROVIDES AN ACTUATION UPON REACHING A FULL COUNT, AND AN ASSOCIATED PRESETTER WHICH SUPPLIES PULSES TO THE TIMER AT A COMPRESSED NON-REAL TIME RATE. SWITCHES ARE SELECTIVELY SET BY THE OPERATOR TO INDICATE THE DESIRED TIMER INTERVAL, AND THESE SWITCHES ARE SO CONNECTED TO ELECTRONIC DECIMAL COUNTERS THAT, WHEN THE TIMER IS PRESET, A NUMBER OF PULSES IS SUP-

    LIED TO THE TIMER WHICH IS THE COMPLEMENT OF THE DESIRED TIMER INTERVAL.

    Electromechanical oscillator using electret coupling
    20.
    发明授权
    Electromechanical oscillator using electret coupling 失效
    电动振荡器使用电动联轴器

    公开(公告)号：US3652955A

    公开(公告)日：1972-03-28

    申请号：US3652955D

    申请日：1970-07-30

    Applicant: GEN TIME CORP

    Inventor： CRUGER RICHARD E ,  ANDERSON WILMER C ,  EARLS DAVID ,  WINDEBANK ROBERT W

    IPC: G04C3/02 ,  G04C3/08 ,  H03B5/30

    CPC classification number: G04C3/08 ,  G04C3/024 ,  H03B5/30

    Abstract: An electrically driven oscillator device is provided with one or more electrets for establishing electrostatic coupling between a mechanical oscillating element and an electrical drive. The mechanical oscillating element can comprise a reed, a tuning fork, a pendulum, or a hair-spring balance wheel. The electrical drive can be an AC voltage source or an electronic feedback circuit. In electrically driven devices, electrets can be used in both the pickup and driving circuits to eliminate hysteresis. Alternatively, in order to isolate the pickup circuit from the driving circuit, electrets can be used in only one of these circuits and magnetic arrangements can be used in the other.

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