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    Adaptive Tuning of a Contact Lens
    1.
    发明申请
    Adaptive Tuning of a Contact Lens 审中-公开

    公开(公告)号：US20190245523A1

    公开(公告)日：2019-08-08

    申请号：US15889174

    申请日：2018-02-05

    申请人： Spy Eye, LLC

    发明人： Brian Elliot Lemoff ,  Gregory David Miller ,  Ion Opris ,  Hawk Yin Pang

    IPC分类号： H03J3/24 ,  G02C7/04 ,  G02C11/00 ,  G02B27/01 ,  H02J50/12

    摘要： An augmented reality system including a source and a contact lens display can be used to project information from the contact lens display onto the retina of the wearer's eye. The source provides energy to the contact lens display and operates at a source frequency. The source includes a source circuit including a conductive coil. The contact lens display includes a resonant circuit including another conductive coil and a capacitive circuit. The resonant circuit receives energy from the conductive coil of the source via a magnetic field inductively coupling the conductive coils. The contact lens display additionally includes a feedback circuit to adjust the capacitance of the capacitive circuit to control a resonant frequency of the resonant circuit. The feedback circuit can control the capacitive circuit to maintain the resonant frequency of the resonant circuit near the source frequency as the wearer's eye blinks.

    Tuning arrangements
    2.
    发明授权
    Tuning arrangements 失效
    调整安排

    公开(公告)号：US3870979A

    公开(公告)日：1975-03-11

    申请号：US43170674

    申请日：1974-01-08

    申请人： MARCONI CO LTD

    发明人： BAXTER RODERICK CAREY ,  HART DENNIS EDWARD

    IPC分类号： H03J3/24 ,  H03J5/02 ,  H03J5/18 ,  H03J5/22

    CPC分类号： H03J5/0209 ,  H03J3/24

    摘要： An arrangement is described in which a number of tunable elements are tuned simultaneously. A signal representative of the desired tuning frequency is derived from a frequency synthesizer and applied in parallel to a number of staircase type comparators, each associated with a particular element to be tuned and providing an output on one of a number of output lines depending on the required tuning adjustment indicated by the comparator input.

    摘要翻译： 描述了其中多个可调谐元件被同时调谐的布置。 表示期望的调谐频率的信号是从频率合成器导出的并且并行地施加到多个阶梯式比较器，每个阶梯型比较器与要调谐的特定元件相关联，并且根据多个输出线提供输出 由比较器输入指示所需的调谐调整。

    Resonant circuit with automated trimming capabilities
    10.
    发明授权
    Resonant circuit with automated trimming capabilities 有权
    具有自动调整功能的谐振电路

    公开(公告)号：US08890633B2

    公开(公告)日：2014-11-18

    申请号：US13719011

    申请日：2012-12-18

    申请人： NXP B.V.

    发明人： Sven Simons

    IPC分类号： H03B5/08 ,  H03L5/00 ,  H03J1/00 ,  H03J3/20 ,  H03J3/08 ,  H03J3/24 ,  H03B5/10 ,  H03B1/00

    CPC分类号： H03L5/00 ,  H03B1/00 ,  H03B5/10 ,  H03J1/0008 ,  H03J3/08 ,  H03J3/20 ,  H03J3/24 ,  H03J2200/28

    摘要： According to an example embodiment, a device includes a resonant circuit configured and arranged to provide a peak current flow at a resonance frequency. A trimming circuit provides variable impedances to the resonant circuit and thereby changes the resonance frequency for the resonant circuit. A driver circuit is configured to generate a trimming signal that oscillates at a desired frequency. A switch circuit couples and decouples the driver circuit to the resonant circuit for driving the resonant circuit with the trimming signal. An amplitude detection circuit detects amplitudes for signals generated in response to the trimming signal being connected to the resonant circuit. A processing circuit correlates detected amplitudes from the amplitude detection circuit with different impedance values of the variable trimming circuit.

    摘要翻译： 根据示例性实施例，一种器件包括谐振电路，其被配置和布置成以谐振频率提供峰值电流。 修整电路为谐振电路提供可变阻抗，从而改变谐振电路的谐振频率。 驱动器电路被配置为产生以所需频率振荡的微调信号。 开关电路将驱动电路耦合到谐振电路并将其去耦，以用修整信号来驱动谐振电路。 振幅检测电路检测响应于连接到谐振电路的修整信号而产生的信号的幅度。 处理电路使来自振幅检测电路的检测振幅与可变微调电路的不同阻抗值相关。