公开(公告)号：US20170003816A1

公开(公告)日：2017-01-05

申请号：US15268418

申请日：2016-09-16

Applicant: Apple Inc.

Inventor： Jeffrey Traer BERNSTEIN ,  David T. AMM ,  Omar S. LEUNG ,  Christopher Tenzin MULLENS ,  Brian Michael KING ,  Brian Richards LAND ,  Reese T. CUTLER

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F3/04817 ,  G06F3/04845 ,  G06F3/0486 ,  G06F2203/04101

Abstract: A capacitive sensing apparatus is disclosed. In some examples, the capacitive sensing apparatus includes a sensor control system configured to: during a first scan of the sensor array: transmit a first alternating current (AC) signal concurrently with a second alternating current (AC) signal to the sensor array, transmit the first AC signal to the first electrode of the sensor array, measure a self capacitance at the first input location, and transmit the second AC signal to the second electrode of the sensor array without measuring a self capacitance at the second input location, and during a second scan of the sensor array: transmit the first AC signal concurrently with the second AC signal to the sensor array, transmit the first AC signal to the first electrode of the sensor array without measuring the self capacitance at the first input location, and measure the self capacitance at the second input location.

Abstract translation: 公开了一种电容式感测装置。 在一些示例中，电容感测装置包括传感器控制系统，其被配置为：在传感器阵列的第一次扫描期间：将第一交流电（AC）信号与第二交流（AC）信号同时传送到传感器阵列，传输 到传感器阵列的第一电极的第一AC信号测量第一输入位置处的自电容，并且将第二AC信号传输到传感器阵列的第二电极，而不测量第二输入位置处的自电容，并且在 传感器阵列的第二扫描：将第一AC信号与第二AC信号同时传送到传感器阵列，将第一AC信号传输到传感器阵列的第一电极，而不测量第一输入位置处的自电容，并测量 在第二输入位置的自电容。

公开(公告)号：US20150338964A1

公开(公告)日：2015-11-26

申请号：US14817160

申请日：2015-08-03

Applicant: Apple Inc.

Inventor： Brian Michael KING ,  Omar S. LEUNG ,  Paul G. PUSKARICH ,  Jeffrey Traer BERNSTEIN ,  Andrea MUCIGNAT ,  Avi E. CIEPLINSKI ,  Muhammad U. CHOUDRY ,  Praveen R. SUBRAMANI ,  Marc J. PICHE ,  David AMM ,  Duncan Robert KERR

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04106 ,  G06F2203/04108 ,  G06F2203/04111

Abstract: Detecting a signal from a touch and hover sensing device, in which the signal can be indicative of concurrent touch events and/or hover events, is disclosed. A touch event can indicate an object touching the device. A hover event can indicate an object hovering over the device. The touch and hover sensing device can ensure that a desired hover event is not masked by an incidental touch event, e.g., a hand holding the device, by compensating for the touch event in the detected signal that represents both events. Conversely, when both a hover event and a touch event are desired, the touch and hover sensing device can ensure that both events are detected by adjusting the device sensors and/or the detected signal. The touch and hover sensing device can also detect concurrent hover events by identifying multiple peaks in the detected signal, each peak corresponding to a position of a hovering object.

Abstract translation: 从触摸和悬停感测装置检测信号，其中信号可以指示同时的触摸事件和/或悬停事件。 触摸事件可以指示触摸设备的对象。 悬停事件可以指示悬停在设备上的对象。 触摸和悬停感测装置可以通过补偿表示这两个事件的检测信号中的触摸事件来确保期望的悬停事件不被偶然的触摸事件（例如，握住设备的手）遮蔽。 相反，当需要悬停事件和触摸事件时，触摸和悬停感测装置可以确保通过调节装置传感器和/或检测到的信号来检测两个事件。 触摸和悬停感测装置还可以通过识别检测到的信号中的多个峰值来检测并发悬停事件，每个峰值对应于悬停物体的位置。

公开(公告)号：US20160209982A1

公开(公告)日：2016-07-21

申请号：US15083102

申请日：2016-03-28

Applicant: Apple Inc.

Inventor： Jeffrey Traer BERNSTEIN ,  David AMM ,  Omar S. LEUNG ,  Christopher Tenzin MULLENS ,  Brian Michael KING ,  Brian R. LAND ,  Reese T. CUTLER

IPC: G06F3/041 ,  G06F3/0486 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F3/04817 ,  G06F3/04845 ,  G06F3/0486 ,  G06F2203/04101

Abstract: Improved capacitive touch and hover sensing with a sensor array is provided. An AC ground shield positioned behind the sensor array and stimulated with signals of the same waveform as the signals driving the sensor array may concentrate the electric field extending from the sensor array and enhance hover sensing capability. The hover position and/or height of an object that is nearby, but not directly above, a touch surface of the sensor array, e.g., in the border area at the end of a touch screen, may be determined using capacitive measurements of sensors near the end of the sensor array by fitting the measurements to a model. Other improvements relate to the joint operation of touch and hover sensing, such as determining when and how to perform touch sensing, hover sensing, both touch and hover sensing, or neither.

Abstract translation: 提供了改进的电容式触摸和悬停感测与传感器阵列。 定位在传感器阵列后面并用与驱动传感器阵列的信号相同波形的信号刺激的AC接地屏蔽可以集中从传感器阵列延伸的电场并增强悬停感测能力。 传感器阵列的触摸表面（例如在触摸屏末端的边界区域）附近但不是直接在上方的物体的悬停位置和/或高度可以使用接近的传感器的电容测量来确定 传感器阵列的末端通过将测量值拟合到模型中。 其他改进涉及触摸和悬停感测的联合操作，例如确定何时以及如何执行触摸感测，悬停感测，触摸和悬停检测，或两者皆不一致。

公开(公告)号：US20150169114A1

公开(公告)日：2015-06-18

申请号：US14631564

申请日：2015-02-25

Applicant: Apple Inc.

Inventor： Brian Michael KING ,  Omar S. LEUNG ,  Paul G. PUSKARICH ,  Jeffrey Traer BERNSTEIN ,  Andrea MUCIGNAT ,  Avi E. CIEPLINSKI ,  Muhammad Umar CHOUDRY ,  Praveen R. SUBRAMANI ,  Marc J. PICHE ,  David AMM ,  Duncan Robert KERR

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04106 ,  G06F2203/04108 ,  G06F2203/04111

Abstract: Compensation for sensors in a touch and hover sensing device is disclosed. Compensation can be for sensor resistance and/or sensor sensitivity variation that can adversely affect touch and hover measurements at the sensors. To compensate for sensor resistance, the device can gang adjacent sensors together so as to reduce the overall resistance of the sensors. In addition or alternatively, the device can drive the sensors with voltages from multiple directions so as to reduce the effects of the sensors' resistance. To compensate for sensor sensitivity variation (generally at issue for hover measurements), the device can apply a gain factor to the measurements, where the gain factor is a function of the sensor location, so as to reduce the sensitivity variation at different sensor locations on the device.

Abstract translation: 公开了触摸和悬停感测装置中传感器的补偿。 补偿可用于传感器电阻和/或传感器灵敏度变化，可能会对传感器的触摸和悬停测量产生不利影响。 为了补偿传感器电阻，器件可以将相邻的传感器组合在一起，以减少传感器的整体电阻。 另外或替代地，该装置可以用来自多个方向的电压来驱动传感器，以便减少传感器电阻的影响。 为了补偿传感器灵敏度变化（通常对于悬停测量通常是一个问题），器件可以对测量应用增益因子，其中增益因子是传感器位置的函数，以便减少不同传感器位置处的灵敏度变化 装置。

公开(公告)号：US20170199625A1

公开(公告)日：2017-07-13

申请号：US15470690

申请日：2017-03-27

Applicant: Apple Inc.

Inventor： Steven P. HOTELLING ,  David AMM ,  Michael LAMMERS ,  John T. ORCHARD ,  Brian Michael KING ,  Omar S. LEUNG ,  Deniz TEOMAN

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044

Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.

公开(公告)号：US20170068356A1

公开(公告)日：2017-03-09

申请号：US15356215

申请日：2016-11-18

Applicant: Apple Inc.

Inventor： Aleksandar PANCE ,  Omar S. LEUNG ,  David T. AMM

IPC: G06F3/044 ,  G06F1/16 ,  H03K17/96 ,  G06F3/041

Abstract: The present disclosure addresses methods and apparatus facilitating capacitive sensing using a conductive surface, and facilitating the sensing of proximity to the conductive surface. The sensed proximity will often be that of a user, but can be another source of a reference voltage potential. In some examples, the described systems are capable of sensing capacitance (including parasitic capacitance) in a circuit that includes the outer conductive surface, and where that outer conductive surface is at a floating electrical potential. In some systems, the systems can be switched between two operating modes, a first mode in which the system will sense proximity to the conductive surface, and a second mode in which the system will use a capacitance measurement to sense contact with the conductive surface.

Abstract translation: 本公开涉及使用导电表面促进电容感测的方法和装置，并且有助于感测靠近导电表面。 感测到的接近度通常是用户的接近度，但是可以是参考电压电位的另一个来源。 在一些示例中，所描述的系统能够感测包括外部导电表面的电路中的电容（包括寄生电容），并且其中外部导电表面处于浮置电位。 在一些系统中，系统可以在两种操作模式之间切换，其中系统将感测到与导电表面接近的第一模式，以及其中系统将使用电容测量来感测与导电表面的接触的第二模式。

公开(公告)号：US20160259474A1

公开(公告)日：2016-09-08

申请号：US15050351

申请日：2016-02-22

Applicant: Apple Inc.

Inventor： Brian Michael KING ,  Omar S. LEUNG ,  Paul G. PUSKARICH ,  Jeffrey Traer BERNSTEIN ,  Andrea MUCIGNAT ,  Avi E. CIEPLINSKI ,  Muhammad U. CHOUDRY ,  Praveen R. SUBRAMANI ,  Marc J. PICHE ,  David AMM ,  Duncan Robert KERR

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/0418 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04106 ,  G06F2203/04108 ,  G06F2203/04111

Abstract: Touch and hover switching is disclosed. A touch and hover sensing device can switch between a touch mode and a hover mode. During a touch mode, the device can be switched to sense one or more objects touching the device. During a hover mode, the device can be switched to sense one or more objects hovering over the device. The device can include a panel having multiple sensors for sensing a touching object and/or a hovering object and a touch and hover control system for switching the device between the touch and hover modes. The device's touch and hover control system can include a touch sensing circuit for coupling to the sensors to measure a capacitance indicative of a touching object during the touch mode, a hover sensing circuit for coupling to the sensors to measure a capacitance indicative of a hovering object during the hover mode, and a switching mechanism for switching the sensors to couple to either the touch sensing circuit or the hover sensing circuit. The device can switch modes based on a condition of the device, such as an expiration of a timer or a relative distance of an object from the panel.

Abstract translation: 公开了触摸和悬停切换。 触摸和悬停感测装置可以在触摸模式和悬停模式之间切换。 在触摸模式期间，可以切换设备以感测触摸设备的一个或多个对象。 在悬停模式期间，可以切换设备以感测悬停在设备上的一个或多个对象。 该装置可以包括具有用于感测触摸物体和/或悬停物体的多个传感器的面板和用于在触摸和悬停模式之间切换装置的触摸和悬停控制系统。 设备的触摸和悬停控制系统可以包括用于耦合到传感器的触摸感测电路，以在触摸模式期间测量指示触摸对象的电容;悬停感测电路，用于耦合到传感器以测量指示悬停物体的电容 在悬停模式期间，以及用于切换传感器以耦合到触摸感测电路或悬停感测电路的切换机构。 设备可以根据设备的状态（例如定时器的到期或对象与面板的相对距离）切换模式。