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    Resistance bridge controlled timekeeping device
    1.
    发明授权
    Resistance bridge controlled timekeeping device 失效
    电阻桥控制时间设备

    公开(公告)号：US3568430A

    公开(公告)日：1971-03-09

    申请号：US3568430D

    申请日：1968-07-11

    Applicant: HAMILTON WATCH CO

    Inventor： WALTON RICHARD S

    IPC: G04C3/16 ,  G04C3/00

    CPC classification number: G04C3/16 ,  Y10S388/934

    Abstract: THERE IS DISCLOSED HEREIN AN ELECTRONIC TIMEKEEPING DEVICE EMPLOYING A PASSIVE CIRCUIT ELEMENT AS A MASTER FREQUENCY REFERENCE, COMPRISING A MOTOR DRIVEN GEAR TRAIN AND HANDS AND A FEEDBACK CONTROL CIRCUIT FOR THE MOTOR INCLUDING A SPEED TRANSDUCER, AND AN ERROR DETECTION CIRCUIT INCLUDING A RESISTANCE BRIDGE AND A DIFFERENTIAL AMPLIFIER. THE AMPLIFIER OUTPUT OPERATES A CONTROL CIRCUIT WHICH PROVIDES ADJUSTABLE EXCITATION FOR THE MOTOR TO MAINTAIN THE DESIRED OPERATING SPEED. AN ULTRA HIGH PRECISION RESISTOR WITH AN EXTREMELY SMALL RESISTANCE-TEMPERATURE COEFFICIENT, IS EMPLOYED IN THE RESISTANCE BRIDGE CIRCUIT AS THE MASTER FREQUENCY REFERENCE.

    Solid state timepiece
    3.
    发明授权
    Solid state timepiece 失效
    固态定时器

    公开(公告)号：US3707071A

    公开(公告)日：1972-12-26

    申请号：US3707071D

    申请日：1971-03-12

    Applicant: HAMILTON WATCH CO

    Inventor： WALTON RICHARD S

    IPC: G04G9/10 ,  G04C3/00

    CPC classification number: G04G9/102

    Abstract: Disclosed is a wristwatch comprising a crystal oscillator, a frequency divider formed of complementary MOS transistors, a display actuator, and a time display. The watch may be all solid state with integrated circuit construction and include a digital time display of light-emitting diodes. It includes display interrogation on demand and display scanning or strobing as well as time setting.

    Abstract translation: 公开了一种手表，其包括晶体振荡器，由互补MOS晶体管形成的分频器，显示致动器和时间显示。 该手表可以是具有集成电路结构的全固态，并且包括发光二极管的数字时间显示。 它包括按需显示询问和显示扫描或选通以及时间设置。

    Electronic timepiece construction employing a flat step-by-step electromechanical energy converter
    4.
    发明授权
    Electronic timepiece construction employing a flat step-by-step electromechanical energy converter 失效
    采用平面逐步电化学能量转换器的电子定时器结构

    公开(公告)号：US3621313A

    公开(公告)日：1971-11-16

    申请号：US3621313D

    申请日：1969-10-24

    Applicant: HAMILTON WATCH CO

    Inventor： WALTON RICHARD S

    IPC: G04C13/11 ,  H02K16/04 ,  H02K37/08 ,  H02K37/00

    CPC classification number: H02K37/08 ,  G04C13/11 ,  H02K16/04

    Abstract: There is disclosed herein an electrical timepiece including electronic circuitry for generating timing pulses, an electromechanical energy converter driven in stepwise fashion by the timing pulses and a mechanical movement having a second hand driven directly by the energy converter and gear train also driven by the energy converter to drive indirectly the hour and minute hands. The electromechanical energy converter disclosed is characterized by a wound stator having a plurality of magnetic circuits separately excitable to complete a magnetic path with a rotor. As the magnetic circuits are energized in succession, the rotor is attracted from one magnetic circuit to the next, producing stepwise rotation in synchronism with the excitation. A particular feature of the energy converter is the fact that its axial dimension is substantially less than its radial dimension, resulting in a flat configuration especially useful in a wrist watch.

    Electronically controlled timepiece using low power mos transistor circuitry
    5.
    发明授权
    Electronically controlled timepiece using low power mos transistor circuitry 失效
    使用低功耗MOS晶体管电路的电子控制时序

    公开(公告)号：US3664118A

    公开(公告)日：1972-05-23

    申请号：US3664118D

    申请日：1970-09-09

    Applicant: HAMILTON WATCH CO

    Inventor： WALTON RICHARD S

    IPC: G04F5/06 ,  G04G3/02 ,  B04C3/00 ,  G04B19/30

    CPC classification number: G04F5/06 ,  G04G3/02

    Abstract: Disclosed is an electronically controlled timepiece suitable for use as a wristwatch. A novel solid state electronic oscillator operating at a frequency substantially in excess of the desired timekeeping rate is connected to a divider in the form of a chain of integrated circuit transistor stages formed of complementary MOS devices. The divider may be formed from static counters or a combination of dynamic and static counters. Connected to the output of the divider is a display actuator and timekeeping display.

    Abstract translation: 公开了适合用作手表的电子控制式钟表。 以基本上超过期望计时率的频率工作的新型固态电子振荡器以由互补MOS器件形成的集成电路晶体管级链的形式连接到分压器。 分隔器可以由静态计数器或动态和静态计数器的组合形成。 连接到分配器的输出端是一个显示执行器和计时显示。

    Piezoelectric-fluid electromechanical transducer
    9.
    发明授权
    Piezoelectric-fluid electromechanical transducer 失效
    压电液体机电传感器

    公开(公告)号：US3596116A

    公开(公告)日：1971-07-27

    申请号：US3596116D

    申请日：1969-07-23

    Applicant: HAMILTON WATCH CO

    Inventor： WALTON RICHARD S

    IPC: G04B1/26 ,  G04C3/14 ,  H01V7/00

    CPC classification number: G04B1/26 ,  G04C3/14

    Abstract: The transducer has a fluid chamber mounting a piezoelectric element at one end and a piston slidably mounted in a reduced diameter portion of the chamber opposite the element. A timebase, including a high frequency oscillator and a frequency divider, applies an electrical signal across the piezoelectric element whereby the element moves to displace the fluid in the chamber thereby driving the piston outwardly against the bias of a spring. The piston is coupled to the gear train of a timepiece. The timed electrical signal is thus converted to an incremental mechanical movement which is amplified by the fluid system to provide timed indexing of the gear train.

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