公开(公告)号：US20180356919A1

公开(公告)日：2018-12-13

申请号：US16107552

申请日：2018-08-21

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV ,  David SABO ,  Joseph Kurth REYNOLDS

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/045

Abstract: Embodiments of the invention generally provide an input device with display screens that periodically update (refresh) the screen by selectively driving electrodes corresponding to pixels in a display line. In addition to updating the display, the input device may perform capacitive sensing using the display screen as a touch area. To do this, the input device uses common electrodes for both updating the display and performing capacitive sensing, and interleaves periods of capacitive sensing between periods of updating the display lines (and pixels) based on a display frame. To avoid noise and mitigate interference during capacitive sensing, the input device may change the capacitive frame rate relative to the display frame rate based on measurements of interference. The changed capacitive frame rate may result in re-timed periods of capacitive sensing based on each display frame.

公开(公告)号：US20180004348A1

公开(公告)日：2018-01-04

申请号：US15199361

申请日：2016-06-30

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/041 ,  G06F3/044

Abstract: Embodiments herein describe input devices that include receivers for sampling capacitive sensing signals. In one embodiment, the receivers perform continuous demodulation where the sampling of the capacitive sensing signal is not synchronized with the modulated signal applied to the sensor. To calibrate, the receiver generates first and second measurements of the capacitive sensing signal when driving a modulated signal onto one or more sensor electrodes during two respective time periods. However, the phase of at least one signal is controlled during the time periods so that the first and second measurements have a phase difference of ninety degrees. Using the first and second measurements, the receiver can determine a phase offset between the capacitive sensing signal and the modulated signal which can be used to alter future measurements so that at least some of these measurements are captured when the capacitive sensing signal is at a peak amplitude.

公开(公告)号：US20170300149A1

公开(公告)日：2017-10-19

申请号：US15639804

申请日：2017-06-30

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV

IPC: G06F3/044 ,  G06F3/041

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

Abstract: Embodiments described herein include a method and apparatus for capacitive sensing in input devices integrated with a display device. In one example, an input device is provided that includes a display device, a plurality of transmitter electrodes integrated with the display device, and a processing system. The plurality of transmitter electrodes include at least a first transmitter electrode and a second transmitter electrode. The first transmitter electrode includes a plurality of transmitter electrode segments. The plurality of transmitter electrode segments includes at least a first transmitter electrode segment connectable with a second transmitter electrode segment. The processing system is configured to: when operating in a first mode, simultaneously drive the first transmitter electrode segment and the second transmitter electrode segment connected as the first transmitter electrode, and when operating in a second mode, drive the first transmitter electrode segment separately from the second transmitter electrode segment.

公开(公告)号：US20170285797A1

公开(公告)日：2017-10-05

申请号：US15088026

申请日：2016-03-31

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV ,  Andrew WINGARD

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G06F2203/04107

Abstract: Techniques for obtaining force-based data of an input device are provided. The techniques include driving sensor electrodes in transcapacitive mode and in absolute capacitive mode, obtaining profiles for each of the modes, scaling the transcapacitive profile, and subtracting the scaled transcapacitive profile from the profile for absolute capacitive sensing. The result of this subtraction is force-based data that indicates the degree of force with that input object applies to the input device.

公开(公告)号：US20170090611A1

公开(公告)日：2017-03-30

申请号：US14870251

申请日：2015-09-30

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV ,  Oscar AYZENBERG

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416 ,  G09G3/20

Abstract: Embodiments described herein include an input device with a plurality of sensor electrodes, where each sensor electrode includes at least one display electrode of a plurality of display electrodes, and where each display electrode is configured to be driven for display updating and capacitive sensing. The input device also includes a processing system configured to acquire sensor data using one or more sensor electrodes during one or more display blanking periods, where a first half sensing period occurs during a first display blanking period and a second half sensing period occurs during a second display blanking period. The processing system acquires sensor data using a first resulting signal from the first half sensing period and a second resulting signal from the second half sensing period.

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：US20150261251A1

公开(公告)日：2015-09-17

申请号：US14723860

申请日：2015-05-28

Applicant: SYNAPTICS INCORPORATED

Inventor： Petr SHEPELEV ,  Arnulf GRAF

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

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F2203/04111

Abstract: Embodiments described herein include an input device, a display device having a capacitive sensing device, a processing system and a method for detecting presence of an input object using a capacitive sensing device. In one embodiment, an input device includes a plurality of sensor electrodes arranged in a planar matrix array. Each sensor electrode is coupled to unique routing trace and has an identical geometric plan form that is symmetrical about a center of area of the sensor electrode. The geometric plan form of each sensor electrode includes core and a plurality of protrusions extending outward from the core. The protrusions are configured to overlap with protrusions extending outward from each adjacent sensor electrode of the matrix array.

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。

公开(公告)号：US20150091842A1

公开(公告)日：2015-04-02

申请号：US14042661

申请日：2013-09-30

Applicant: Synaptics Incorporated

Inventor： Petr SHEPELEV ,  Christopher A. LUDDEN ,  Jeffrey LUKANC ,  Stephen L. MOREIN ,  Greg P. SEMERARO ,  Joseph Kurth REYNOLDS

IPC: G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04101 ,  G06F2203/04104 ,  G06F2203/04106 ,  G06F2203/04107 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: Embodiments described herein include a display device having a capacitive sensing device, a processing system and a method for detecting presence of an input object using a capacitive sensing device, all of which include a grid electrode for improved absolute sensing. Other embodiments include a display device having a capacitive sensing device, a processing system and a method for detecting presence of an input object using a capacitive sensing device, wherein the capacitive sensing device includes a matrix of discrete sensor electrodes.

Abstract translation: 本文描述的实施例包括具有电容感测装置，处理系统和用于使用电容感测装置检测输入对象的存在的方法的显示装置，所有这些都包括用于改进的绝对感测的栅格电极。 其他实施例包括具有电容感测装置的显示装置，处理系统和用于使用电容感测装置检测输入对象的存在的方法，其中所述电容感测装置包括离散传感器电极的矩阵。