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    DIVERSITY PROXIMITY COMMUNICATION
    2.
    发明申请
    DIVERSITY PROXIMITY COMMUNICATION 有权
    多样性接近通信

    公开(公告)号：US20090279571A1

    公开(公告)日：2009-11-12

    申请号：US12115772

    申请日：2008-05-06

    申请人： Alex Chow ,  R. David Hopkins ,  Robert J. Drost

    发明人： Alex Chow ,  R. David Hopkins ,  Robert J. Drost

    IPC分类号： H04J1/00 ,  H04J15/00 ,  H04J13/00 ,  H04J3/00

    CPC分类号： H04B5/0012 ,  H01L25/0657 ,  H01L2225/06513 ,  H01L2225/06531 ,  H01L2924/0002 ,  H04B7/04 ,  H01L2924/00

    摘要： A diversity proximity communication system formed on two juxtaposed chips, one having a two-dimensional array of transmit elements, the other having a two-dimensional array of receive elements. The receive and transmit elements need not be aligned and may have nominal alignment of one transmit element overlapping the corners of four receive elements. The elements may be electrical pads capacitively coupled across the interface. Signals of four different multiplexing groups, e.g., time-multiplexed, are supplied to transmitting elements in a 2×2 array. Signals from four receive elements in a 2×2 array are amplified, combined, and demultiplexed for the selected multiplexing group. The gains for the four signals to be combined are differentially controlled to increase the signal-to-noise ratio. The amplification may be determined by the overlap between each of the receive elements and the transmit element of the selected multiplexing group.

    摘要翻译： 在两个并置芯片上形成的分集接近通信系统，一个具有发射元件的二维阵列，另一个具有接收元件的二维阵列。 接收和发送元件不需要对齐，并且可以具有与四个接收元件的角重叠的一个发射元件的标称对准。 元件可以是跨接口电容耦合的电焊盘。 四个不同复用组的信号，例如时分复用，被提供给2x2阵列中的发射元件。 来自2x2阵列中的四个接收元件的信号被放大，组合和解复用用于所选择的复用组。 要组合的四个信号的增益被差分控制以增加信噪比。 可以通过每个接收元件与所选多路复用组的发送元件之间的重叠来确定放大。

    Diversity proximity communication
    4.
    发明授权
    Diversity proximity communication 有权
    多样性近距离通信

    公开(公告)号：US08097869B2

    公开(公告)日：2012-01-17

    申请号：US12115772

    申请日：2008-05-06

    申请人： Alex Chow ,  R. David Hopkins ,  Robert J. Drost

    发明人： Alex Chow ,  R. David Hopkins ,  Robert J. Drost

    IPC分类号： G02B27/00 ,  H04B10/00

    CPC分类号： H04B5/0012 ,  H01L25/0657 ,  H01L2225/06513 ,  H01L2225/06531 ,  H01L2924/0002 ,  H04B7/04 ,  H01L2924/00

    摘要： A diversity proximity communication system formed on two juxtaposed chips, one having a two-dimensional array of transmit elements, the other having a two-dimensional array of receive elements. The receive and transmit elements need not be aligned and may have nominal alignment of one transmit element overlapping the corners of four receive elements. The elements may be electrical pads capacitively coupled across the interface. Signals of four different multiplexing groups, e.g., time-multiplexed, are supplied to transmitting elements in a 2×2 array. Signals from four receive elements in a 2×2 array are amplified, combined, and demultiplexed for the selected multiplexing group. The gains for the four signals to be combined are differentially controlled to increase the signal-to-noise ratio. The amplification may be determined by the overlap between each of the receive elements and the transmit element of the selected multiplexing group.

    摘要翻译： 在两个并置芯片上形成的分集接近通信系统，一个具有发射元件的二维阵列，另一个具有接收元件的二维阵列。 接收和发送元件不需要对齐，并且可以具有与四个接收元件的角重叠的一个发射元件的标称对准。 元件可以是跨接口电容耦合的电焊盘。 四个不同复用组的信号，例如时分复用，被提供给2×2阵列中的发射元件。 来自2×2阵列中的四个接收元件的信号被放大，组合和解复用用于选择的多路复用组。 要组合的四个信号的增益被差分控制以增加信噪比。 可以通过每个接收元件与所选复用组的发射元件之间的重叠来确定放大。

    Attofarad capacitance measurement
    5.
    发明授权
    Attofarad capacitance measurement 有权
    Attofarad电容测量

    公开(公告)号：US07129712B1

    公开(公告)日：2006-10-31

    申请号：US11256733

    申请日：2005-10-24

    申请人： Robert J. Drost ,  R. David Hopkins ,  Ronald Ho

    发明人： Robert J. Drost ,  R. David Hopkins ,  Ronald Ho

    IPC分类号： G01R27/26

    CPC分类号： G01R27/2605

    摘要： An electrical circuit for determining a capacitance is described. The electrical circuit includes a first device, a rectifying circuit and a feedback circuit. The first device has a first terminal and a second terminal. The first device has a first unknown capacitance and the first terminal may be configured to receive a time-varying voltage signal. The rectifying circuit has an input terminal, an output terminal and a feedback terminal. The input terminal may be coupled to the second terminal and the output terminal may be configured for coupling to an output electrical circuit. The feedback circuit may selectively couple the output terminal to the input terminal using the feedback terminal such that the output terminal and the input terminal are substantially at a common voltage.

    摘要翻译： 描述用于确定电容的电路。 电路包括第一装置，整流电路和反馈电路。 第一装置具有第一端子和第二端子。 第一器件具有第一未知电容，并且第一端子可以被配置为接收时变电压信号。 整流电路具有输入端子，输出端子和反馈端子。 输入端可以耦合到第二端子，并且输出端子可以被配置为耦合到输出电路。 反馈电路可以使用反馈端选择性地将输出端耦合到输入端，使得输出端和输入端基本上处于公共电压。

    Using floating fill metal to reduce power use for proximity communication
    6.
    发明授权
    Using floating fill metal to reduce power use for proximity communication 有权
    使用浮动填充金属来减少接近通信的电力

    公开(公告)号：US07994604B2

    公开(公告)日：2011-08-09

    申请号：US12317606

    申请日：2008-12-24

    申请人： Alex Chow ,  Robert J. Drost ,  Ronald Ho ,  Robert Proebsting ,  Arlene Proebsting, legal representative

    发明人： Alex Chow ,  Robert J. Drost ,  Ronald Ho ,  Robert Proebsting

    IPC分类号： H01L23/52 ,  H01L23/538

    CPC分类号： H01L23/48 ,  H01L2225/06527 ,  H01L2924/0002 ,  H01L2924/00

    摘要： One embodiment of the present invention provides a system that facilitates reducing the power needed for proximity communication. This system includes an integrated circuit with an array of transmission pads that transmit a signal using proximity communication. A layer of fill metal is located in proximity to this array of transmission pads, wherein the layer of fill metal is “floating” (e.g., not connected to any signal). Leaving this layer of fill metal floating reduces the parasitic capacitance for the array of transmission pads, which can reduce the amount of power needed to transmit the signal.

    摘要翻译： 本发明的一个实施例提供一种有助于减少邻近通信所需的功率的系统。 该系统包括具有使用接近通信传输信号的传输焊盘阵列的集成电路。 填充金属层位于该传输焊盘阵列附近，其中填充金属层“浮动”（例如，未连接到任何信号）。 离开这层填充金属浮动可以减少传输焊盘阵列的寄生电容，这可以减少传输信号所需的功率。

    PROTECTION FOR PROXIMITY ELECTRONICS AGAINST ELECTROSTATIC DISCHARGE
    7.
    发明申请
    PROTECTION FOR PROXIMITY ELECTRONICS AGAINST ELECTROSTATIC DISCHARGE 有权
    针对静电放电的接近电子保护

    公开(公告)号：US20090315157A1

    公开(公告)日：2009-12-24

    申请号：US12144142

    申请日：2008-06-23

    申请人： Robert J. Drost ,  Scott M. Fairbanks ,  Alex Chow

    发明人： Robert J. Drost ,  Scott M. Fairbanks ,  Alex Chow

    IPC分类号： H01L23/62

    CPC分类号： H01L25/0657 ,  H01L23/48 ,  H01L23/60 ,  H01L2225/06527 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01L2924/00

    摘要： A system of protecting a proximity communication system against electrostatic discharge (ESD). The proximity communication system includes two chips, each having an array of electrical pads at its surface and covered by a thin dielectric layer such that capacitive coupling circuits are formed between the chips when they are joined together. In at least one of the chips, an additional protection pad is formed away from the array, and heavy protection circuitry is connected to it. Its surface is exposed through the dielectric surface over it such that, when an ESD aggressor approaches, the discharge occurs to the protection pad.

    摘要翻译： 保护接近通信系统免受静电放电（ESD）的系统。 接近通信系统包括两个芯片，每个芯片在其表面上具有电焊盘的阵列并被薄的电介质层覆盖，使得当它们连接在一起时，在芯片之间形成电容耦合电路。 在至少一个芯片中，附加的保护焊盘远离阵列形成，重保护电路与其连接。 其表面通过其上的电介质表面暴露，使得当ESD侵蚀器接近时，放电发生到保护焊盘。

    Steering fabric that facilitates reducing power use for proximity communication
    8.
    发明申请
    Steering fabric that facilitates reducing power use for proximity communication 有权
    有助于减少接近通讯用电的转向结构

    公开(公告)号：US20090205850A1

    公开(公告)日：2009-08-20

    申请号：US12317659

    申请日：2008-12-24

    申请人： Alex Chow ,  Robert J. Drost ,  Ronald Ho ,  Arlene Proebsting ,  Robert Proebsting

    发明人： Alex Chow ,  Robert J. Drost ,  Ronald Ho ,  Arlene Proebsting ,  Robert Proebsting

    IPC分类号： H01B5/00

    CPC分类号： H01L23/48 ,  H01L2225/06527 ,  H01L2924/0002 ,  H01L2924/00

    摘要： One embodiment of the present invention provides a system that facilitates reducing the power needed for proximity communication. This system includes an integrated circuit with an array of transmission pads that transmit signals using proximity communication. This array is comprised of a set of macropads, where each given macropad is comprised of a set of micropads that can be configured to transmit a signal. A steering fabric routes signals to and within macropads, such that a subset of the micropads in the array can be configured to transmit the signal to a receiving component. Each macropad receives a limited number of input signals, with the steering fabric routing input signals to the micropads of the macropads. By limiting the number of input signals that are routed to the micropads of the macropads, the steering fabric eliminates redundant steering configurations for the array and reduces the power needed to transmit the signal.

    摘要翻译： 本发明的一个实施例提供一种有助于减少邻近通信所需的功率的系统。 该系统包括具有使用接近通信传输信号的传输焊盘阵列的集成电路。 该阵列由一组宏阵列组成，其中每个给定的宏阵列由可配置为传输信号的一组微阵列组成。 转向结构将信号路由到宏阵列内并在宏阵中传送，使得阵列中的微阵列的子集可被配置为将信号发送到接收组件。 每个macropad都接收到有限数量的输入信号，其中转向结构将输入信号输入到macropads的微型麦克风。 通过限制输入信号的数量，路由到巨型阵列的微阵列，转向结构消除了阵列的冗余转向配置，并减少传输信号所需的功率。

    Capacitively and conductively coupled multiplexer
    10.
    发明授权
    Capacitively and conductively coupled multiplexer 有权
    电容和导通耦合多路复用器

    公开(公告)号：US08299839B2

    公开(公告)日：2012-10-30

    申请号：US12352481

    申请日：2009-01-12

    申请人： Robert J. Drost ,  Alex Chow ,  Robert D. Hopkins

    发明人： Robert J. Drost ,  Alex Chow ,  Robert D. Hopkins

    IPC分类号： H03K17/00

    CPC分类号： H03K17/005 ,  H03K17/693

    摘要： A capacitively and conductively coupled multiplexer (C3mux) circuit is described. This C3mux circuit includes a set of nonlinear coupling capacitors, such as metal-oxide-semiconductor (MOS) transistors, that can multiplex multiple input signals while minimizing the parasitic capacitance penalty associated with the ‘off’ paths. In particular, the capacitance of a given MOS transistor depends on whether its channel is present or absent. Furthermore, this channel is formed based on whether the gate-to-source and drain voltages for the MOS transistor are greater than the MOS transistor's threshold voltage. Note that the capacitance of the MOS transistors in the C3mux circuit is low for the unselected inputs. Consequently, the parasitic loading and the delay increase slowly as a function of the number of inputs. Moreover, the conductive feedback can be used to maintain a DC level of the input signals.

    摘要翻译： 描述了电容和导电耦合多路复用器（C3mux）电路。 该C3mux电路包括一组非线性耦合电容器，例如金属氧化物半导体（MOS）晶体管，其可以复用多个输入信号，同时最小化与关闭路径相关联的寄生电容损耗。 特别地，给定MOS晶体管的电容取决于其通道是存在还是不存在。 此外，该沟道是基于MOS晶体管的栅极 - 源极和漏极电压是否大于MOS晶体管的阈值电压而形成的。 请注意，C3mux电路中的MOS晶体管的电容对于未选择的输入为低电平。 因此，寄生负载和延迟作为输入数量的函数缓慢增加。 此外，导电反馈可用于维持输入信号的直流电平。