公开(公告)号：US20160313825A1

公开(公告)日：2016-10-27

申请号：US14866846

申请日：2015-09-26

Applicant: Apple Inc.

Inventor： Steven P. HOTELLING ,  Vivek PANT ,  Prathit BUGNAIT ,  Isaac CHAN

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0418 ,  G06F2203/04103

Abstract: Electrode configurations for reducing wobble error for a stylus translating on a surface over and between electrodes of a touch sensor panel is disclosed. In some examples, electrodes associated with a more linear signal profile are correlated with lower wobble error. In some examples, electrodes are coupled to adjacent electrodes via diffusing resistors such that the signal profile for each electrode is spread to be more linear. In some configurations, the value of the diffusing resistors and series resistance associated with an electrode is selected based on a desired signal profile for that electrode. In some examples, the series resistance can include a trace resistance and a compensating resistance. The compensating resistance can compensate for a variance in trace resistance between electrodes, thus making series resistance substantially equal for each of the electrodes.

Abstract translation: 公开了用于减少在触摸传感器面板上的电极之间的表面上平移的触控笔的摆动误差的电极配置。 在一些示例中，与更线性的信号轮廓相关联的电极与较低的摆动误差相关。 在一些示例中，电极通过扩散电阻器耦合到相邻电极，使得每个电极的信号分布被扩展成更线性。 在一些配置中，基于该电极的期望信号轮廓来选择扩散电阻器的值和与电极相关联的串联电阻。 在一些示例中，串联电阻可以包括迹线电阻和补偿电阻。 补偿电阻可以补偿电极之间的迹线电阻的变化，从而使每个电极的串联电阻基本相等。

公开(公告)号：US20160162101A1

公开(公告)日：2016-06-09

申请号：US14869980

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： Vivek PANT ,  Shahrooz SHAHPARNIA ,  Marduke YOUSEFPOR ,  Christoph H. KRAH

IPC: G06F3/041 ,  G06F3/044

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.

Abstract translation: 可以通过实施粗略扫描（例如，共享共模扫描）来粗略地检测触摸或接近触摸传感器面板的物体的存在或不存在，并且粗略地检测触摸感测装置的触摸感测操作的结果 扫描可用于动态调整触敏设备的操作以执行或不执行精细扫描（例如，目标主动模式扫描）。 在一些示例中，当没有检测到触摸事件时，可以使用粗略扫描的结果来编程用于下一触摸感测帧的触摸控制器空闲，或者当检测到一个或多个触摸事件时执行精细扫描。 在一些示例中，当没有检测到触摸事件时，粗略扫描的结果可以用于在当前触摸感测帧期间中止预定的精细扫描。

公开(公告)号：US20200341585A1

公开(公告)日：2020-10-29

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：US20170344174A1

公开(公告)日：2017-11-30

申请号：US15169679

申请日：2016-05-31

Applicant: Apple Inc.

Inventor： Vivek PANT ,  Moshe MALKIN ,  Shahrooz SHAHPARNIA

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

CPC classification number: G06F3/0416 ,  G06F3/03545 ,  G06F3/044

Abstract: Position-based sensing methods and systems can be used to transmit data from an input device to a touch-sensitive device. For example, the touch sensing system may perform one or more coarse input device sub-scans to determine a coarse location of the input device. The coarse location can be used to select one or more touch sensors (or sensor channels) to sample for decoding data encoded in the stimulation signals from the input device. During one or more fine input device sub-scans, the touch sensing system can determine a fine location of the input device and decode the data from the input device sampled from the selected touch sensors (or sensor channels).

公开(公告)号：US20190095006A1

公开(公告)日：2019-03-28

申请号：US16114023

申请日：2018-08-27

Applicant: Apple Inc.

Inventor： Shahrooz SHAHPARNIA ,  Christopher Tenzin MULLENS ,  Martin Paul GRUNTHANER ,  Adam GEBOFF ,  Vivek PANT ,  Marduke YOUSEFPOR ,  Christoph H. KRAH ,  Shwetabh VERMA ,  Sumant RANGANATHAN

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

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：US20180275824A1

公开(公告)日：2018-09-27

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：US20160378208A1

公开(公告)日：2016-12-29

申请号：US14751057

申请日：2015-06-25

Applicant: Apple Inc.

Inventor： Shahrooz SHAHPARNIA ,  Vivek PANT

IPC: G06F3/0354 ,  G06F3/041

CPC classification number: G06F3/03545 ,  G06F3/0383 ,  G06F3/0418

Abstract: Active styli, methods and non-transitory computer readable storage media can be used for mitigating noise coupling from an active stylus to a touch sensing system. An active stylus can include a force sensor that can be used to detect stylus touch-down and lift-off events. Based on a touch-down and lift-off events, the stylus can generate stimulation signals and ramp up or ramp down the amplitude of the stimulation signals. Additionally or alternatively, an active stylus can receive information to synchronize the active stylus with a touch-sensitive device. Based on the information, the stylus can synchronize generation of stimulation signals with the stylus scan performed by the touch-sensitive device. The stimulation signals can be ramped up during a guard band period before a stylus scan and can be ramped down during a guard band period after the stylus scan.

Abstract translation: 主动测针，方法和非暂时的计算机可读存储介质可用于减轻从有源触针到触摸感测系统的噪声耦合。 有源手写笔可以包括一个力传感器，可用于检测触控笔触摸和提起事件。 根据触摸屏和提升事件，触控笔可以产生刺激信号，并提升或降低刺激信号的幅度。 附加地或替代地，活动触针可以接收信息以使活动触笔与触敏设备同步。 基于该信息，触控笔可以将刺激信号的产生与由触敏设备执行的触针扫描同步。 在触针扫描之前的保护频带周期期间，刺激信号可以上升，并且可以在触针扫描之后的保护频带周期期间将其降低。

公开(公告)号：US20160266679A1

公开(公告)日：2016-09-15

申请号：US14993017

申请日：2016-01-11

Applicant: Apple Inc.

Inventor： Shahrooz SHAHPARNIA ,  Vivek PANT ,  Christoph H. KRAH

IPC: G06F3/044

Abstract: A multi-chip touch architecture for scalability can include one or more touch controller application specific integrated circuits (ASICs), and one or more switching circuits coupled between the one or more touch controller ASICs and the touch sensor panel. The number of touch controller ASICs and switching circuits can be scaled based on the size of the touch sensor panel. The touch controller ASICs can include an interface for data transfer between the touch controller ASICs to allow for parallel processing of an image of touch by more than one touch controller ASIC. The touch controller ASIC can also include a memory directly accessible by more than one processing circuit (e.g., hardware accelerators), and circuitry to dynamically adjust the coupling between portions (e.g., banks) of memory and inputs of the one or more processing circuits to minimize data transfer and improve processing speeds.

Abstract translation: 用于可扩展性的多芯片触摸架构可以包括一个或多个触摸控制器专用集成电路（ASIC）以及耦合在一个或多个触摸控制器ASIC和触摸传感器面板之间的一个或多个开关电路。 触摸控制器ASIC和开关电路的数量可以基于触摸传感器面板的尺寸来缩放。 触摸控制器ASIC可以包括用于触摸控制器ASIC之间的数据传输的接口，以允许多于一个触摸控制器ASIC的触摸图像的并行处理。 触摸控制器ASIC还可以包括可由多于一个的处理电路（例如，硬件加速器）直接访问的存储器和用于动态调整存储器的部分（例如，存储体）与一个或多个处理电路的输入之间的耦合的电路， 最小化数据传输并提高处理速度。

公开(公告)号：US20160162011A1

公开(公告)日：2016-06-09

申请号：US14869975

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： Shwetabh VERMA ,  Shahrooz SHAHPARNIA ,  Sumant RANGANATHAN ,  Vivek PANT

IPC: G06F1/32 ,  G06F3/041

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.

Abstract translation: 可以通过实施一个或多个粗略扫描来粗略地检测触摸或接近触摸传感器面板的物体的存在或不存在，并且动态地调整触敏设备的操作以执行触摸敏感设备的触摸感测操作的功耗 或者基于一个或多个粗略扫描的结果不执行精细扫描的一个或多个步骤。 在一些示例中，可以调度精细扫描，并且当在一个或多个步骤期间扫描的触摸传感器没有检测到触摸时，可以中止精细扫描的一个或多个步骤。 在中止的精细扫描步骤期间，由于中止的精细扫描步骤而未使用的感应通道可以关闭。