公开(公告)号：US20210149561A1

公开(公告)日：2021-05-20

申请号：US16953303

申请日：2020-11-19

申请人： Apple Inc.

发明人： Shahrooz SHAHPARNIA ,  Marduke YOUSEFPOR

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

摘要： A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.

公开(公告)号：US20190095006A1

公开(公告)日：2019-03-28

申请号：US16114023

申请日：2018-08-27

申请人： Apple Inc.

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

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

摘要： 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：US20160378208A1

公开(公告)日：2016-12-29

申请号：US14751057

申请日：2015-06-25

申请人： Apple Inc.

发明人： Shahrooz SHAHPARNIA ,  Vivek PANT

IPC分类号： G06F3/0354 ,  G06F3/041

CPC分类号： G06F3/03545 ,  G06F3/0383 ,  G06F3/0418

摘要： 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.

摘要翻译： 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

申请人： Apple Inc.

发明人： Shahrooz SHAHPARNIA ,  Vivek PANT ,  Christoph H. KRAH

IPC分类号： G06F3/044

摘要： 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.

摘要翻译： 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

申请人： Apple Inc.

发明人： Shwetabh VERMA ,  Shahrooz SHAHPARNIA ,  Sumant RANGANATHAN ,  Vivek PANT

IPC分类号： G06F1/32 ,  G06F3/041

CPC分类号： G06F3/044 ,  G06F1/3215 ,  G06F1/3262 ,  G06F3/0416 ,  G06F2203/04101

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20150035769A1

公开(公告)日：2015-02-05

申请号：US14333461

申请日：2014-07-16

申请人： Apple Inc.

发明人： Shahrooz SHAHPARNIA

IPC分类号： G06F3/0354 ,  G06F3/041

CPC分类号： G06F3/041 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3648

摘要： A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.

摘要翻译： 公开了一种可以根据扫描方案配置触摸电路的触摸控制器，其可以定义要在触摸面板上执行的扫描事件的顺序。 触摸控制器可以包括可配置的发射部分以产生用于驱动面板的刺激信号，可配置的接收部分，用于接收和处理来自面板的触摸信号，以及可配置存储器来存储触摸信号。 触摸控制器还可以包括可编程扫描引擎，以根据扫描计划来配置发送部分，接收部分和存储器。 触摸控制器有利地提供更强大和灵活的触摸电路来处理面板上的各种类型的触摸事件。 还公开了一种在面板上的各种触摸事件期间可以产生可被触摸控制器检测到的刺激信号的活动触针。

公开(公告)号：US20140267071A1

公开(公告)日：2014-09-18

申请号：US13830399

申请日：2013-03-14

申请人： APPLE INC.

发明人： Shahrooz SHAHPARNIA

IPC分类号： G06F3/0354

CPC分类号： G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04104

摘要： A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that can receive the stylus signal and estimate the start and end time of the stylus signal in order to facilitate windowed demodulation of signal. The start and end times are then used to facilitate a windowed demodulation of the stylus signal.

摘要翻译： 提供了一种被配置为检测由外部触控笔产生的触针信号的触摸输入装置。 触摸输入装置包括多个触针信号检测器，其可以接收触针信号并且估计触笔信号的开始和结束时间，以便于窗口化的信号解调。 然后开始和结束时间用于促进触控信号的窗口解调。

公开(公告)号：US20230325030A1

公开(公告)日：2023-10-12

申请号：US18335934

申请日：2023-06-15

申请人： Apple Inc.

发明人： Shahrooz SHAHPARNIA ,  Marduke YOUSEFPOR

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

CPC分类号： G06F3/041661 ,  G06F3/04162 ,  G06F3/0441 ,  G06F3/0442 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/041 ,  G06F3/03545 ,  G06F3/0443 ,  G09G3/3648

摘要： A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.

公开(公告)号：US20160162101A1

公开(公告)日：2016-06-09

申请号：US14869980

申请日：2015-09-29

申请人： Apple Inc.

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

IPC分类号： G06F3/041 ,  G06F3/044

CPC分类号： G06F3/044 ,  G06F1/3215 ,  G06F1/3262 ,  G06F3/0416 ,  G06F2203/04101

摘要： 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.

摘要翻译： 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：US20150035797A1

公开(公告)日：2015-02-05

申请号：US14333382

申请日：2014-07-16

申请人： Apple Inc.

发明人： Shahrooz SHAHPARNIA

IPC分类号： G06F3/044

CPC分类号： G06F3/041 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3648

摘要： A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.

摘要翻译： 公开了一种可以根据扫描方案配置触摸电路的触摸控制器，其可以定义要在触摸面板上执行的扫描事件的顺序。 触摸控制器可以包括可配置的发射部分以产生用于驱动面板的刺激信号，可配置的接收部分，用于接收和处理来自面板的触摸信号，以及可配置存储器来存储触摸信号。 触摸控制器还可以包括可编程扫描引擎，以根据扫描计划来配置发送部分，接收部分和存储器。 触摸控制器有利地提供更强大和灵活的触摸电路来处理面板上的各种类型的触摸事件。 还公开了一种在面板上的各种触摸事件期间可以产生可被触摸控制器检测到的刺激信号的活动触针。