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公开(公告)号：US10308457B2
公开(公告)日：2019-06-04
申请号：US14568675
申请日：2014-12-12
发明人： Evgeny Fomin , Alfred Gomes , Domenico Granozio , Matthew Christopher Kessler , Scott D. Kulchycki
摘要： A capacitive sensing system based on projected self-capacitance is suitable for use in printing systems/products to sense paper tray status. In example embodiments, a capacitive sensing system is adapted for sensing the condition/characteristics of paper in the paper tray, such as paper size, stack height and page count and paper dielectric. The capacitive sensing system can be configured with one or more shielded capacitive sensors incorporated into the paper tray, and oriented relative to the paper according to the paper condition/characteristic sensed.
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公开(公告)号：US20190042053A1
公开(公告)日：2019-02-07
申请号：US15911067
申请日：2018-03-02
发明人： Evgeny Fomin
摘要： Touch slider-position sensing useable with a capacitive touch sensor that includes multiple capacitive electrodes arranged to define a slider track. The touch slider-position sensing methodology includes: (a) generating a set of calibration vectors for points of the slider track; (b) determining a touch slider-position based on (i) measuring a measurement/data vector associated with the touch-press slider-location, (ii) determining an angle between the measurement/data vector and a subset of the calibration vectors, and (iii) determining touch slider-position based on the angles between the measurement data vectors and the subset of calibration vectors. The method can include performing a quadratic or higher order interpolation of the angles between the measurement/data vector and the subset of the calibration vectors.
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3.发明授权Inductive sensing including inductance multiplication with series connected coils 有权感应感应包括串联连接线圈的电感倍增公开(公告)号：US09157768B2
公开(公告)日：2015-10-13
申请号：US14611947
申请日：2015-02-02
CPC分类号： G01D5/202
摘要： Inductive position sensing uses inductance multiplication with series connected sensor coils. In one embodiment, a first sensing domain area is established in a first target plane using first and second sensor coils disposed on a longitudinal axis, on opposite sides of the first target plane and connected in series, so that a series-combined inductance is a multiple of a sum of the respective first and second coil inductances. Target position within the first sensing domain area of the first target plane is detected based on the series-combined inductance of the first and second coils, which changes as the target moves within the first sensing domain area of the first target plane. Further sensitivity can be achieved by additional coils, series connected on the same longitudinal axis, each coil pair defining a sensing area on a respective target plane intermediate the coils.
摘要翻译： 感应位置传感使用串联连接传感器线圈的电感倍增。 在一个实施例中，使用设置在第一目标平面的相对侧上的纵向轴线上的第一和第二传感器线圈并将其串联连接，在第一目标平面中建立第一感测区域区域，使得串联组合电感为 相应的第一和第二线圈电感之和的倍数。 基于第一和第二线圈的串联组合电感检测第一目标平面的第一感测区域内的目标位置，该第一和第二线圈在第一目标平面的第一感测区域内随着目标移动而改变。 可以通过串联连接在相同的纵轴上的附加线圈来实现进一步的灵敏度，每个线圈对限定在线圈之间的相应目标平面上的感测区域。
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公开(公告)号：US11226661B2
公开(公告)日：2022-01-18
申请号：US15630945
申请日：2017-06-22
摘要： An arrangement for securing a touch sensor assembly within a mobile communication or other device with at least one touch button defined within a touch button area. The touch sensor assembly includes a touch sensor (such as a sense inductor coil), and multiple back-side spring clips attached at the back-side of the sensor assembly. A touch sensor pocket integral with the device case is disposed at an interior-side of the touch button area, the sensor pocket to position the sensor assembly relative to the associated touch button. The touch sensor assembly can be secured within the touch sensor pocket by the back-side spring clips, spring-urged toward the front-side of the sensor pocket, and spaced from the device case by spacer elements (which can be attached to the sensor assembly, or integrated into the device case). The touch sensor pocket can include back-side alignment elements for aligning the spring clips.
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公开(公告)号：US09829501B2
公开(公告)日：2017-11-28
申请号：US14687690
申请日：2015-04-15
发明人： Dongtai Liu , Evgeny Fomin , George Pieter Reitsma
CPC分类号： G01P3/49 , G01D5/2006 , G01P3/48 , G01P3/481 , G01P3/487 , G01P13/045
摘要： A rotational sensing system is adaptable to sensing motor rotation based on eddy current sensing. An axial target surface is incorporated with the motor rotor, and includes one or more conductive target segment(s). An inductive sensor is mounted adjacent the axial target surface, and includes one or more inductive sense coil(s), such that rotor rotation rotates the target segment(s) laterally under the sense coil(s). An inductance-to-digital converter (IDC) drives sensor excitation current to project a magnetic sensing field toward the rotating axial target surface. Sensor response is characterized by successive sensor phase cycles that cycle between LMIN in which a sense coil is aligned with a target segment, and LMAX in which the sense coil is misaligned. The number of sensor phase cycles in a rotor rotation cycle corresponds to the number of target segments. The IDC converts sensor response measurements from successive sensor phase cycles into rotational data.
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公开(公告)号：US20160054370A1
公开(公告)日：2016-02-25
申请号：US14835696
申请日：2015-08-25
发明人： Evgeny Fomin , Andrew Wang
CPC分类号： G01R31/025 , G01R1/18 , G01R31/312
摘要： A ground fault detection system based on capacitive sensing suitable for use in detecting a ground fault condition in electronic equipment (such as a PCBA) with a circuit ground electrically isolated from an isolation ground (such as chassis ground). The capacitive sensing system includes a capacitive sensor capacitively coupled to the system isolation ground, and a capacitance/data converter that captures sensor capacitance measurements for conversion to sensor data representative of a ground short. In one embodiment, the capacitive sensor includes a sensor electrode capacitively coupled to the system isolation ground by one of projected capacitance and a floating capacitor (such as 33 pf), and the CDC unit further includes sensor excitation circuitry configured to drive the sensor electrode, such that a sensor capacitance (projected or floating capacitance) is representative of an electrical condition of the system isolation ground. For sensing by projected capacitance, the capacitive sensor can include a driven shield.
摘要翻译： 一种基于电容感测的接地故障检测系统，适用于检测电子设备（如PCBA）中的接地故障状态，电路接地与隔离地（例如机架接地）电隔离。 电容感测系统包括电容耦合到系统隔离接地的电容传感器，以及电容/数据转换器，其捕获用于转换为代表接地短路的传感器数据的传感器电容测量值。 在一个实施例中，电容传感器包括通过投影电容中的一个电容耦合到系统隔离地的传感器电极和浮动电容（例如33pf），并且CDC单元还包括被配置为驱动传感器电极的传感器激励电路， 使得传感器电容（投影或浮动电容）代表系统隔离接地的电气状态。 为了通过投影电容进行感测，电容传感器可以包括驱动屏蔽。
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公开(公告)号：US10551945B2
公开(公告)日：2020-02-04
申请号：US15911067
申请日：2018-03-02
发明人： Evgeny Fomin
IPC分类号： G06F3/041 , G06F3/044 , G06F3/0362 , G06F3/0354
摘要： Touch slider-position sensing useable with a capacitive touch sensor that includes multiple capacitive electrodes arranged to define a slider track. The touch slider-position sensing methodology includes: (a) generating a set of calibration vectors for points of the slider track; (b) determining a touch slider-position based on (i) measuring a measurement/data vector associated with the touch-press slider-location, (ii) determining an angle between the measurement/data vector and a subset of the calibration vectors, and (iii) determining touch slider-position based on the angles between the measurement data vectors and the subset of calibration vectors. The method can include performing a quadratic or higher order interpolation of the angles between the measurement/data vector and the subset of the calibration vectors.
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公开(公告)号：US20180088635A1
公开(公告)日：2018-03-29
申请号：US15721720
申请日：2017-09-29
CPC分类号： G06F1/183 , G06F1/1656 , G06F1/1658 , G06F3/041 , G06F3/044
摘要： A touch sensor mounting assembly includes a carrier with a front-side surface for attaching a touch sensor circuit (such as a flex circuit board), and a back-side spring structure. The touch sensor mounting assembly can be used for mounting at least one touch sensor in a device case with at least on touch button area defined on a surface of the device case. The touch sensor mounting assembly can include a carrier including a front-side sensor-attach surface, and a back-side spring structure including at least two spring arms integral with the carrier. Touch sensor circuitry can be mounted on the front-side sensor-attach surface of the carrier, such that when, the touch sensor mounting assembly is installed in the device case adjacent the at least one touch button area, the back-side spring arms are flexed to urge the carrier with front-side mounted touch sensor circuitry toward an interior side of the touch button area of the device case. In one implementation, the devices case includes first and second adjacent touch button areas (such as up/dn), and the carrier includes a front-side sensor-attach surface dimensioned for respective first and second touch sensor circuits, and can include a back-side spring structure with dual crossed spring arms for each of the first and second touch sensor circuits.
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9.发明申请Derivative Integration Event Detection For Digital Data Stream Such As For Touch-on-Metal Detection 审中-公开数字数据流的衍生积分事件检测，如触摸金属检测公开(公告)号：US20160246439A1
公开(公告)日：2016-08-25
申请号：US15050459
申请日：2016-02-22
发明人： Evgeny Fomin
IPC分类号： G06F3/041
CPC分类号： H03K17/98 , H03K17/9622 , H03K2217/96071
摘要： An event detection methodology is suitable for detecting an event in a continuous digital data stream, such as a ToM (touch on metal) button press. The methodology includes acquiring successive derivative data samples, and, for each derivative data sample, evaluating if the derivative data sample meets a derivative event rejection condition: if no, evaluating the next derivative data sample; or if yes, performing derivative integration accumulation, and evaluating if the derivative integration accumulation meets an integration event condition. If yes, signal event detection, or if no, evaluate the next derivative data sample and the next derivative integration accumulation. The methodology can further include dissipating the derivative integration accumulation by a leakage factor. The derivative event rejection condition can be a derivative interval, such as ABS D[i]>T_D, where T_D is a derivative event rejection threshold, or TD_L≦ABS D[i] ABS [T_I], where T_I is an integration event threshold.
摘要翻译： 事件检测方法适用于检测连续数字数据流中的事件，例如ToM（触摸金属）按钮按压。 该方法包括获取连续的衍生数据样本，并且对于每个衍生数据样本，评估导数数据样本是否满足导数事件拒绝条件：如果否，则评估下一个导数数据样本; 或者如果是，执行衍生积分积分，并评估导数积分积分是否满足积分事件条件。 如果是，则信号事件检测，否则，评估下一个导数数据样本和下一个导数积分。 该方法还可以包括通过泄漏因子消散导数积分积分。 导数事件拒绝条件可以是导数间隔，例如ABS D [i]> T_D，其中T_D是导数事件拒绝阈值，或TD_L≤ABD[i]
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公开(公告)号：US20150369880A1
公开(公告)日：2015-12-24
申请号：US14744018
申请日：2015-06-18
发明人： Evgeny Fomin
IPC分类号： G01R33/028
CPC分类号： G01R33/028
摘要： An inductive sensing system is based on nonlinearity of the B-H curve for an inductive sensor with an inductor coil wound onto a magnetic core. A DC magnetic field source magnetically couples into the magnetic core a pre-defined DC magnetic-core field, such that the inductive sensor is configured for a magnetic-core operating point on the B-H curve where the value of the second derivative d2B/dH2 is substantially maximum, such that sensing operation is in the nonlinear region around the magnetic-core operating point. An inductance-to-digital conversion (IDC) unit is configured to acquire sensor measurements from the inductor coil corresponding to coil inductance as representing a sensed magnetic-core field. The IDC unit converts the sensor measurements into sensor data corresponding to changes in the sensed magnetic-core field relative to the magnetic-core operating point in response to a sensed condition that affects the DC magnetic field in the magnetic core.
摘要翻译： 感应感应系统基于B-H曲线的非线性，用于感应传感器，其中缠绕在磁芯上的电感线圈。 DC磁场源磁耦合到磁芯中预定义的DC磁芯场，使得感应传感器被配置用于BH曲线上的磁芯工作点，其中二阶导数d2B / dH2的值为 基本上最大，使得感测操作处于磁芯工作点周围的非线性区域。 电感 - 数字转换（IDC）单元被配置为从对应于线圈电感的电感线圈采集传感器测量值，作为感测的磁芯场。 响应于影响磁芯中的直流磁场的感测条件，IDC单元将传感器测量值转换为对应于感测的磁芯场相对于磁芯工作点的变化的传感器数据。
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