公开(公告)号：US20170075495A1

公开(公告)日：2017-03-16

申请号：US15265465

申请日：2016-09-14

Applicant: SYNAPTICS INCORPORATED

Inventor： Jeremy ROBERSON ,  David SOBEL ,  Farzaneh SHAHROKHI ,  Adam SCHWARTZ ,  Don SPECK ,  Eric Scott BOHANNON

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/044 ,  G06F2203/04108

Abstract: Embodiments described herein include an input device with a plurality of capacitive sensor electrodes configured to receive a signal. The input device also includes a processing system coupled to the plurality of capacitive sensor electrodes. The processing system includes an analog front end (AFE). The AFE includes an anti-aliasing filter comprising a continuous time analog infinite impulse response (IIR) filter configured to filter out interference from the received signal at frequencies higher than a signal frequency of the processing system to produce an anti-aliased signal. The AFE also includes a charge integrator configured to integrate the anti-aliased signal.

Abstract translation: 本文描述的实施例包括具有被配置为接收信号的多个电容传感器电极的输入装置。 输入装置还包括耦合到多个电容传感器电极的处理系统。 处理系统包括模拟前端（AFE）。 AFE包括抗混叠滤波器，其包括连续时间模拟无限脉冲响应（IIR）滤波器，其被配置为以高于处理系统的信号频率的频率滤除来自接收信号的干扰，以产生抗混叠信号。 AFE还包括电荷积分器，其被配置为集成抗混叠信号。

公开(公告)号：US20160183382A1

公开(公告)日：2016-06-23

申请号：US14579683

申请日：2014-12-22

Applicant: Synaptics Incorporated

Inventor： Derek SOLVEN ,  Adam SCHWARTZ

IPC: H05K3/32 ,  G06F3/041 ,  G06F1/16 ,  H05K3/36 ,  G06F3/044

Abstract: In an example, a capacitive image sensor comprises a first sensor electrode, a second sensor electrode, and a third sensor electrode. The first sensor electrode is disposed on a first surface of a substrate configured to transmit a transmitter signal. The second sensor electrode is disposed on the first surface of the substrate configured to receive a resulting signal. The third sensor electrode is disposed on the first surface of the substrate such that the second sensor electrode is at least partially between the first sensor electrode and the third sensor electrode.

Abstract translation: 在一个示例中，电容式图像传感器包括第一传感器电极，第二传感器电极和第三传感器电极。 第一传感器电极设置在被配置为发射发射机信号的衬底的第一表面上。 第二传感器电极设置在被配置为接收所得信号的基板的第一表面上。 第三传感器电极设置在基板的第一表面上，使得第二传感器电极至少部分地位于第一传感器电极和第三传感器电极之间。

公开(公告)号：US20150323578A1

公开(公告)日：2015-11-12

申请号：US14802720

申请日：2015-07-17

Applicant: Synaptics Incorporated

Inventor： Farzaneh SHAHROKHI ,  Tracy Scott Dattalo ,  Joseph Kurth REYNOLDS ,  Adam SCHWARTZ

IPC: G01R27/26 ,  G06F3/044 ,  G01D5/24

CPC classification number: G01R27/2605 ,  G01D5/24 ,  G06F3/0416 ,  G06F3/044

Abstract: A capacitance measurement circuit comprises a differential amplifier with first and second inputs and an output, first and second feedback capacitances, and a reset mechanism. The first input is coupled to a modulated reference voltage and the second input is coupled with a sensor electrode. A first feedback capacitance is coupled between the output and the second input. A second feedback capacitance is coupled between the output and the second input. The reset mechanism resets the first feedback capacitance to a first level of charge and the second feedback capacitance to a second level of charge. During an absolute capacitance measurement phase, the differential amplifier charges the sensor electrode while balancing voltages on the first and second inputs to a voltage level associated with the modulated reference voltage and integrates charge on the sensor electrode to measure capacitance corresponding to a coupling between the sensor electrode and an input object.

Abstract translation: 电容测量电路包括具有第一和第二输入的差分放大器和输出，第一和第二反馈电容以及复位机构。 第一输入耦合到调制参考电压，第二输入与传感器电极耦合。 第一反馈电容耦合在输出端和第二输入端之间。 第二反馈电容耦合在输出和第二输入之间。 复位机构将第一反馈电容重置为第一电荷水平，并将第二反馈电容重置为第二电荷水平。 在绝对电容测量阶段期间，差分放大器对传感器电极进行充电，同时将第一和第二输入端的电压平衡到与调制参考电压相关联的电压电平，并将传感器电极上的电荷积分，以测量对应于传感器 电极和输入对象。

公开(公告)号：US20150248183A1

公开(公告)日：2015-09-03

申请号：US14632226

申请日：2015-02-26

Applicant: Synaptics Incorporated

Inventor： Adam SCHWARTZ ,  Joseph Kurth REYNOLDS ,  Bob Lee MACKEY ,  Petr SHEPELEV

IPC: G06F3/044 ,  G06F3/045 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F2203/04112

Abstract: This disclosure generally provides an input device that includes a multi-layered capacitive sensor which includes a first layer disposed over a second layer that contains a plurality of sensor electrodes coupled to respective traces. The first and second layers form a capacitive sensing stack where the first layer is between the second layer and a touch surface for interacting with the input object. The first and second layers may be disposed on either the same substrate or different substrates in the stack. In one embodiment, the first layer includes electrically floating electrodes and at least one guard electrode. These components may align with respective components in the second layer. For example, the electrically floating electrodes in the first layer may at least partially cover the sensor electrodes in the second layer.

Abstract translation: 本公开通常提供一种输入设备，其包括多层电容传感器，其包括设置在第二层上的第一层，该第二层包含耦合到相应迹线的多个传感器电极。 第一层和第二层形成电容感测层，其中第一层位于第二层和触摸表面之间，用于与输入物体相互作用。 第一层和第二层可以设置在堆叠中的相同基板或不同的基板上。 在一个实施例中，第一层包括电浮置电极和至少一个保护电极。 这些部件可以与第二层中的各个部件对齐。 例如，第一层中的电浮置电极可以至少部分地覆盖第二层中的传感器电极。

公开(公告)号：US20150177887A1

公开(公告)日：2015-06-25

申请号：US14623331

申请日：2015-02-16

Applicant: Synaptics Incorporated

Inventor： Adam SCHWARTZ ,  Joseph Kurth REYNOLDS

IPC: G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108

Abstract: Embodiments of the invention generally provide a method and apparatus that is configured to reduce the effects of interference that is undesirably provided to a transmitter signal that is delivered from a transmitter signal generating device to a sensor processor to determine if an input object is disposed within a touch sensing region of a touch sensing device. In one embodiment, the sensor processor includes a receiver channel that has circuitry that is configured to separately receive a transmitter signal delivered from a display processor and a sensor processor reference signal that is based on a display processor reference signal to reliably sense the presence of an object. Embodiments of the invention described herein thus provide an improved apparatus and method for reliably sensing the presence of an object by a touch sensing device.

Abstract translation: 本发明的实施例通常提供一种方法和装置，其被配置为减少不期望地提供给从发射机信号发生装置传送到传感器处理器的发射机信号的干扰的影响，以确定输入对象是否被布置在 触摸感测装置的触摸感测区域。 在一个实施例中，传感器处理器包括接收器通道，其具有被配置为分别接收从显示处理器传送的发送器信号的电路和基于显示处理器参考信号的传感器处理器参考信号，以可靠地感测存在 目的。 因此，本文描述的本发明的实施例因此提供了一种用于通过触摸感测装置可靠地感测物体的存在的改进的装置和方法。

公开(公告)号：US20140021966A1

公开(公告)日：2014-01-23

申请号：US13843129

申请日：2013-03-15

Applicant: SYNAPTICS INCORPORATED

Inventor： Farzaneh SHAHROKHI ,  Adam SCHWARTZ ,  Shahrooz SHAHPARNIA ,  Joseph Kurth REYNOLDS ,  Tracy Scott DATTALO

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G01D5/24 ,  G06F3/0416 ,  G06F3/044

Abstract: A differential amplifier has an output and differential first and second inputs. A switch disposed between a sensor electrode and the second input is opened to initiate a reset phase where the sensor electrode and the differential amplifier are decoupled. A feedback capacitance disposed between the second input and the output is reset to a first level of charge. The switch is closed to initiate a measurement phase where the second input and sensor electrode are coupled. In the measurement phase: charge is balanced between the sensor electrode and the feedback capacitance such that a sensor electrode voltage equals a voltage of the first input equals a voltage of the second input, and the sensor electrode is charged; and the differential amplifier is utilized to integrate charge on the sensor electrode, such that an absolute capacitance corresponding to a coupling between the sensor electrode and an input object is measured.

Abstract translation: 差分放大器具有输出和差分第一和第二输入。 设置在传感器电极和第二输入之间的开关被打开以启动复位阶段，其中传感器电极和差分放大器被去耦合。 设置在第二输入和输出之间的反馈电容被复位到第一电荷水平。 开关闭合以启动第二输入和传感器电极耦合的测量阶段。 在测量阶段：在传感器电极和反馈电容之间平衡电荷，使得传感器电极电压等于第一输入的电压等于第二输入的电压，并且传感器电极被充电; 并且差分放大器用于在传感器电极上集成电荷，使得测量对应于传感器电极和输入对象之间的耦合的绝对电容。

公开(公告)号：US20160179226A1

公开(公告)日：2016-06-23

申请号：US14581683

申请日：2014-12-23

Applicant: Synaptics Incorporated

Inventor： Petr SHEPELEV ,  Adam SCHWARTZ

IPC: G06F3/0354 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/03545 ,  G06F2203/04108 ,  G09G3/20

Abstract: In an example, a processing system for an integrated display and capacitive sensing device includes a sensor module and a determination module. The sensor module includes sensor circuitry configured to be coupled to a plurality of sensor electrodes. The sensor module is configured to receive an active pen signal with at least one sensor electrode of the plurality the sensor electrodes. The determination module is configured to adjust a sensing period of the sensor module for alignment with a transmission period of the active pen signal.

Abstract translation: 在一个示例中，用于集成显示和电容感测装置的处理系统包括传感器模块和确定模块。 传感器模块包括被配置为耦合到多个传感器电极的传感器电路。 传感器模块被配置为用多个传感器电极中的至少一个传感器电极接收活动笔信号。 确定模块被配置为调整传感器模块的感测周期以与活动笔信号的传输周期对准。

公开(公告)号：US20150324036A1

公开(公告)日：2015-11-12

申请号：US14804193

申请日：2015-07-20

Applicant: Synaptics Incorporated

Inventor： Adam SCHWARTZ ,  Richard R. SCHEDIWY ,  Joseph Kurth REYNOLDS ,  Kirk HARGREAVES

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G01R27/2605 ,  G06F3/0416 ,  G06F3/044

Abstract: An input device comprises a first plurality of sensor electrodes, a second plurality of sensor electrodes, and a processing system. The processing system comprises a first integrated circuit, a second integrated circuit, and a central controller. The first integrated circuit is coupled to the first plurality of sensor electrodes and configured to receive first resulting signals therewith. The second integrated circuit is coupled to the second plurality of sensor electrodes and configured to receive second resulting signals therewith. The central controller is communicatively coupled to the first and second integrated circuits. The central controller is configured to receive the first resulting signals from the first integrated circuit and the second resulting signals from the second integrated circuit and is configured to determine positional information from the first resulting signals and the second resulting signals and to communicate the positional information to a host processor.

Abstract translation: 输入装置包括第一多个传感器电极，第二多个传感器电极和处理系统。 处理系统包括第一集成电路，第二集成电路和中央控制器。 第一集成电路耦合到第一多个传感器电极并且被配置为用其接收第一结果信号。 第二集成电路耦合到第二多个传感器电极并且被配置为用其接收第二结果信号。 中央控制器通信地耦合到第一和第二集成电路。 中央控制器被配置为从第一集成电路接收第一结果信号和来自第二集成电路的第二结果信号，并且被配置为从第一结果信号和第二结果信号确定位置信息，并将位置信息传送到 一个主机处理器。

公开(公告)号：US20150227229A1

公开(公告)日：2015-08-13

申请号：US14178150

申请日：2014-02-11

Applicant: Synaptics Incorporated

Inventor： Adam SCHWARTZ ,  Petr SHEPELEV

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04106

Abstract: Embodiments in the present disclosure use various individual electrodes in a capacitive sensing pixel of an electrode matrix to perform two different techniques of capacitive sensing. For example, a capacitive sensing pixel may include at least two sensor electrodes that may be driven different by a processing system depending on the current capacitive technique being used to user interaction. When performing absolute capacitive sensing, a first one of the sensor electrodes may be driven with a modulated signal in order to measure a change in absolute capacitance between the driven sensor electrode and an input object. Alternatively, when performing transcapacitance sensing, the first sensor electrode is driven with a transmitter signal while a resulting signal is measured on a second sensor electrode in the capacitive pixel. In this manner, the individual electrodes in a capacitive sensing pixel may be driven differently depending on the current capacitive sensing technique.

Abstract translation: 本公开的实施例使用电极矩阵的电容感测像素中的各种单独电极来执行两种不同的电容感测技术。 例如，电容感测像素可以包括至少两个可以由处理系统驱动的传感器电极，这取决于当前用于用户交互的电容技术。 当执行绝对电容感测时，可以用调制信号驱动第一传感器电极，以便测量驱动传感器电极和输入对象之间的绝对电容的变化。 或者，当执行转码检测时，第一传感器电极用发射机信号驱动，同时在电容像素中的第二传感器电极上测量得到的信号。 以这种方式，可以根据当前的电容感测技术来不同地驱动电容感测像素中的各个电极。

公开(公告)号：US20150185926A1

公开(公告)日：2015-07-02

申请号：US14641040

申请日：2015-03-06

Applicant: Synaptics Incorporated

Inventor： Petr SHEPELEV ,  Adam SCHWARTZ

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G09G5/18

Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving common electrodes corresponding to pixels in a display line. In general, the input devices drive each electrode until each display line (and each pixel) of a display frame is updated. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a proximity sensing area. To do this, the input device may interleave periods of capacitive sensing between periods of updating the display based on a display frame. For example, the input device may update the first half of display lines of the display screen, pause display updating, perform capacitive sensing, and finish updating the rest of the display lines. Further still, the input device may use common electrodes for both updating the display and performing capacitive sensing.

Abstract translation: 本发明的实施例通常提供具有显示屏幕的输入设备，其通过选择性地驱动对应于显示行中的像素的公共电极来周期性地更新（刷新）屏幕。 通常，输入设备驱动每个电极，直到显示框架的每个显示线（和每个像素）被更新。 除了更新显示器之外，输入设备可以使用显示屏幕来执行电容感测作为接近感测区域。 为此，输入设备可以基于显示帧来交织更新显示器的时段之间的电容感测周期。 例如，输入装置可以更新显示画面的显示行的前半部分，暂停显示更新，执行电容感测，并且更新其余的显示行。 此外，输入装置可以使用公共电极来更新显示和执行电容感测。