公开(公告)号：US10712867B2

公开(公告)日：2020-07-14

申请号：US15522737

申请日：2015-10-27

Applicant: Apple Inc.

Inventor： Yingxuan Li ,  Weijun Yao ,  Vivek Pant ,  Martin Paul Grunthaner ,  Marduke Yousefpor ,  Sumant Ranganathan

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.

公开(公告)号：US10067618B2

公开(公告)日：2018-09-04

申请号：US14869975

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： Shwetabh Verma ,  Shahrooz Shahparnia ,  Sumant Ranganathan ,  Vivek Pant

IPC: G06F3/045 ,  G06F3/044 ,  G06F3/041 ,  G06F1/32

CPC classification number: G06F3/044 ,  G06F1/3215 ,  G06F1/3262 ,  G06F3/0416 ,  G06F2203/04101

Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing one or more coarse scans to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and dynamically adjusting the operation of the touch sensitive device to perform or not perform one or more steps of a fine scan based on the results of the one or more coarse scans. In some examples, the fine scan can be scheduled, and one or more steps of the fine scan can be aborted when no touch is detected at touch sensors scanned during the one or more steps. Sense channels unused due to the aborted fine scan steps can be powered down during aborted fine scan steps.

公开(公告)号：US10061449B2

公开(公告)日：2018-08-28

申请号：US14869980

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： Vivek Pant ,  Shahrooz Shahparnia ,  Marduke Yousefpor ,  Christoph H. Krah

IPC: G09G5/00 ,  G06F3/044 ,  G06F3/041 ,  G06F1/32

CPC classification number: G06F3/044 ,  G06F1/3215 ,  G06F1/3262 ,  G06F3/0416 ,  G06F2203/04101

Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing a coarse scan (e.g., banked common mode scan) to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and the results of the coarse scan can be used to dynamically adjust the operation of the touch sensitive device to perform or not perform a fine scan (e.g., targeted active mode scan). In some examples, the results of the coarse scan can be used to program a touch controller for the next touch sensing frame to idle when no touch event is detected or to perform a fine scan when one or more touch events are detected. In some examples, the results of the coarse scan can be used to abort a scheduled fine scan during the current touch sensing frame when no touch event is detected.

公开(公告)号：US11561647B2

公开(公告)日：2023-01-24

申请号：US16924047

申请日：2020-07-08

Applicant: Apple Inc.

Inventor： Yingxuan Li ,  Weijun Yao ,  Vivek Pant ,  Martin Paul Grunthaner ,  Marduke Yousefpor ,  Sumant Ranganathan

IPC: G06F3/041 ,  G06F3/044 ,  G06F3/0354

Abstract: A touch sensor panel is disclosed. In some examples, the touch sensor panel comprises a plurality of touch node electrodes. In some examples, the touch sensor panel comprises a touch controller configured to drive and sense the plurality of touch node electrodes in a fully bootstrapped configuration to obtain a fully bootstrapped touch image, drive and sense the plurality of touch node electrodes in a second configuration, different from the fully bootstrapped configuration, to obtain a second touch image, the second touch image including an effect of water on the touch sensor panel, and determine a final touch image based on the fully bootstrapped touch image and the second touch image, the final touch image not including the effect of the water on the touch sensor panel. In some examples, the second configuration comprises a mutual capacitance configuration. In some examples, the second configuration comprises a partially bootstrapped configuration.

公开(公告)号：US09557868B2

公开(公告)日：2017-01-31

申请号：US14550784

申请日：2014-11-21

Applicant: Apple Inc.

Inventor： Manu Agarwal ,  Shahrooz Shahparnia ,  Vivek Pant

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

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F2203/04107

Abstract: A touch sensor may overlap a display. A transparent shield layer that is grounded around its edges may be interposed between the display and the touch sensor to help prevent noise from display data lines from reaching the touch sensor. The data lines may extend along a first dimension. The touch sensor may have first elongated electrodes that extend along the first dimension and second elongated electrodes that extend along a second dimension that is perpendicular to the first dimension. The second electrodes may be interposed between the first electrodes and the data lines. Pen present electrodes may be used to gather pen present data associated with a stylus on the touch sensor. Adjacent noise sensors may collect noise data that is removed from the pen present data.

Abstract translation: 触摸传感器可能与显示器重叠。 围绕其边缘接地的透明屏蔽层可以插入在显示器和触摸传感器之间，以帮助防止显示数据线的噪声到达触摸传感器。 数据线可以沿着第一维度延伸。 触摸传感器可以具有沿着第一尺寸延伸的第一细长电极和沿垂直于第一尺寸的第二尺寸延伸的第二细长电极。 第二电极可以介于第一电极和数据线之间。 笔当前电极可用于收集与触摸传感器上的触控笔相关联的笔存在数据。 相邻的噪声传感器可以收集从笔当前数据中去除的噪声数据。

公开(公告)号：US11009949B1

公开(公告)日：2021-05-18

申请号：US16057623

申请日：2018-08-07

Applicant: Apple Inc.

Inventor： John G. Elias ,  Ray L. Chang ,  Moshe H. Malkin ,  Vivek Pant

IPC: G06F3/01 ,  G06F1/16 ,  G06F3/041 ,  G06F3/0488 ,  G06F3/044

Abstract: A wearable electronic device comprises a multi-segment force sensor and a signal aggregator. The sensor comprises at least a first segment and a second segment connected to a flexible substrate material. A first portion of the substrate material (to which the first segment is attached) and a second portion of the substrate material (to which the second segment is attached) collectively wrap at least partially around a portion of an individual's body. The signal aggregator receives respective signals indicative of forces applied by an individual to the segments, and causes a representation of the respective signals to be transmitted to an application processing engine.

公开(公告)号：US10209827B1

公开(公告)日：2019-02-19

申请号：US15191614

申请日：2016-06-24

Applicant: Apple Inc.

Inventor： Moshe Malkin ,  Shahrooz Shahparnia ,  Vivek Pant

IPC: G06F3/041

Abstract: A touch sensing system can demodulate sensor data using a dynamically adjusted demodulation waveform and/or demodulation window. The demodulation waveform and/or demodulation window can be dynamically adjusted to account for dynamically changing noise in a touch sensing system. The system can dynamically adjust the demodulation window based on noise measured by the touch sensing system to generate an optimized or otherwise noise-tailored window to suppress detected noise. In some examples, the noise measured by the touch sensing system can be sampled from sense channels localized to a detected touch.

公开(公告)号：US10768746B1

公开(公告)日：2020-09-08

申请号：US15591032

申请日：2017-05-09

Applicant: Apple Inc.

Inventor： Vivek Pant ,  Sumant Ranganathan ,  Moshe Malkin

IPC: G06F3/041 ,  G06F3/044

Abstract: Improved sensing can include modified sampling and/or processing to improve performance against noise due to environmental variations and interference. In some examples, improved interference rejection can be achieved by sampling a sensor multiple times during settled periods. In some examples, the excitation signal and sampling window can be dynamically adjusted to satisfy drift and/or interference specifications based on various operating conditions or the operating environment. In some examples, drift performance can be traded off to improve interference performance. In some examples, improved immunity to environmental variations can be achieved by equalizing sensor outputs in accordance with characterization of the sensing system. In some examples, improved performance can be achieved by sampling the sensor continuously and using an optimized window function to improve performance against noise.

公开(公告)号：US10664113B2

公开(公告)日：2020-05-26

申请号：US16114023

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Vivek Pant ,  Marduke Yousefpor ,  Christoph H. Krah

IPC: G09G5/00 ,  G06F3/044 ,  G06F1/3215 ,  G06F1/3234 ,  G06F3/041

Abstract: Power consumption of touch sensing operations for touch sensitive devices can be reduced by implementing a coarse scan (e.g., banked common mode scan) to coarsely detect the presence or absence of an object touching or proximate to a touch sensor panel and the results of the coarse scan can be used to dynamically adjust the operation of the touch sensitive device to perform or not perform a fine scan (e.g., targeted active mode scan). In some examples, the results of the coarse scan can be used to program a touch controller for the next touch sensing frame to idle when no touch event is detected or to perform a fine scan when one or more touch events are detected. In some examples, the results of the coarse scan can be used to abort a scheduled fine scan during the current touch sensing frame when no touch event is detected.

公开(公告)号：US09465456B2

公开(公告)日：2016-10-11

申请号：US14283105

申请日：2014-05-20

Applicant: Apple Inc.

Inventor： Vivek Pant ,  Shahrooz Shahparnia ,  John Greer Elias

IPC: G06F3/0354 ,  G06F3/0488 ,  G06F3/041 ,  G06F3/044 ,  G06F3/038

CPC classification number: G06F3/03545 ,  G06F3/038 ,  G06F3/0418 ,  G06F3/044 ,  G06F3/0488

Abstract: Algorithms can be used to reduce stylus tip wobble for a stylus translating on a surface over and between electrodes of a touch sensor panel. In some examples, a first position estimate can be calculated using a first position calculation method and a second position estimate can be calculated using a second position calculation method. The position of the stylus can be determined based on a weighted combination of the first and second position estimates. In some examples, the first position estimate can be calculated using an even-point centroid of signal contributions from an even number of electrodes of a touch sensor panel and the second position estimate can be calculated using an odd-point centroid of signal contributions from an odd number of electrodes. In some examples, the weighting can be assigned based on a ratio of the two largest amplitude signals and based on a ratio of the second and third largest amplitude signals.

Abstract translation: 可以使用算法来减少在触摸传感器面板的电极之间和之间的表面上平移的触笔的触笔尖摆动。 在一些示例中，可以使用第一位置计算方法来计算第一位置估计，并且可以使用第二位置计算方法来计算第二位置估计。 可以基于第一和第二位置估计的加权组合来确定触控笔的位置。 在一些示例中，可以使用来自触摸传感器面板的偶数个电极的信号贡献的偶数中心来计算第一位置估计，并且可以使用来自第一位置估计的信号贡献的奇点中心来计算第二位置估计 奇数电极。 在一些示例中，可以基于两个最大幅度信号的比率并且基于第二和第三最大振幅信号的比率来分配加权。