公开(公告)号：US10042476B2

公开(公告)日：2018-08-07

申请号：US15158461

申请日：2016-05-18

Applicant: Apple Inc.

Inventor： Thomas James Wilson ,  Christoph H. Krah ,  Minh-Dieu Thi Vu

IPC: G06F3/0488 ,  G06F3/041

CPC classification number: G06F3/0418 ,  G06F3/0416

Abstract: A channel scan architecture for detecting touch events on a touch sensor panel is disclosed. The channel scan architecture can combine drive logic, sense channels and channel scan logic on a single monolithic chip. The channel scan logic can be configured to implement a sequence of scanning processes in a panel subsystem without intervention from a panel processor. The channel scan architecture can provide scan sequence control to enable the panel processor to control the sequence in which individual scans are implemented in the panel subsystem. Type of scans that can be implemented in the panel subsystem can include a spectral analysis scan, touch scan, phantom touch scan, ambient light level scan, proximity scan and temperature scan.

公开(公告)号：US10031609B2

公开(公告)日：2018-07-24

申请号：US14730162

申请日：2015-06-03

Applicant: Apple Inc.

Inventor： Minh-Dieu Thi Vu ,  Thomas James Wilson ,  Christoph H. Krah

IPC: G06F3/045 ,  G06F3/041 ,  G06F3/0354 ,  G06F3/044 ,  G06F1/32

CPC classification number: G06F3/0416 ,  G06F1/3262 ,  G06F3/03545 ,  G06F3/041 ,  G06F3/044 ,  G06F2203/04104

Abstract: A device that can autonomously scan a sensor panel is disclosed. Autonomous scanning can be performed by implementing channel scan logic. In one embodiment, channel scan logic carries out many of the functions that a processor would normally undertake, including generating timing sequences and obtaining result data; comparing scan result data against a threshold value (e.g., in an auto-scan mode); generating row count; selecting one or more scanning frequency bands; power management control; and performing an auto-scan routine in a low power mode.

公开(公告)号：US09582104B2

公开(公告)日：2017-02-28

申请号：US15045097

申请日：2016-02-16

Applicant: Apple Inc.

Inventor： Christoph Horst Krah ,  Minh-Dieu Thi Vu

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/0354 ,  G06F3/044 ,  G06F3/048

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/048 ,  G06F2203/04104 ,  G06F2203/04106 ,  G06F2203/04108

Abstract: A sensor panel device that can generate and use a stimulus signal having multiple different waveforms for detecting events on or near the sensor panel is disclosed. Among other things, such a stimulus signal can be used to reject environmental noise present in the device. In some embodiments, the stimulus signal has multiple waveforms having different frequencies. Logic circuitry can generate representative values from output of the different waveforms applied to one or more sensing nodes in the sensor panel device. From the representative values, a final value can be generated that represents whether an event occurred at or near the one or more sensing nodes.

Abstract translation: 公开了一种传感器面板装置，其可以生成并使用具有多个不同波形的刺激信号来检测传感器面板上或附近的事件。 除此之外，这种刺激信号可以用于排除设备中存在的环境噪声。 在一些实施例中，刺激信号具有不同频率的多个波形。 逻辑电路可以从施加到传感器面板装置中的一个或多个感测节点的不同波形的输出产生代表性值。 根据代表值，可以生成表示在一个或多个感测节点处或附近发生事件的最终值。

公开(公告)号：US08922519B2

公开(公告)日：2014-12-30

申请号：US14094608

申请日：2013-12-02

Applicant: Apple Inc.

Inventor： Christoph Horst Krah ,  Minh-Dieu Thi Vu

IPC: G09G5/00 ,  G06F3/048 ,  G06F3/0354 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/048 ,  G06F2203/04104 ,  G06F2203/04106 ,  G06F2203/04108

Abstract: A sensor panel device that can generate and use a stimulus signal having multiple different waveforms for detecting events on or near the sensor panel is disclosed. Among other things, such a stimulus signal can be used to reject environmental noise present in the device. In some embodiments, the stimulus signal has multiple waveforms having different frequencies. Logic circuitry can generate representative values from output of the different waveforms applied to one or more sensing nodes in the sensor panel device. From the representative values, a final value can be generated that represents whether an event occurred at or near the one or more sensing nodes.

公开(公告)号：US20140347306A1

公开(公告)日：2014-11-27

申请号：US14455604

申请日：2014-08-08

Applicant: Apple Inc.

Inventor： Christoph H. KRAH ,  Minh-Dieu Thi Vu ,  Thomas James Wilson

IPC: G06F3/041

CPC classification number: G06F3/0418 ,  G06F1/3203 ,  G06F1/3262 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/044 ,  G06F2203/04104

Abstract: A system and method for autonomously scanning a sensor panel device is disclosed. A sensor panel processor can be disabled after a first predetermined amount of time has elapsed without the sensor panel device sensing any events. One or more system clocks can also be disabled to conserve power. While the processor and one or more system clocks are disabled, the sensor panel device can periodically autonomously scan the sensor panel for touch activity. If one or more results from the autonomous scans exceed a threshold, the sensor panel device re-enables the processor and one or more clocks to actively scan the sensor panel. If the threshold is not exceeded, the sensor panel device continues to periodically autonomously scan the sensor panel without intervention from the processor. The sensor panel device can periodically perform calibration functions to account for any drift that may be present in the system.

Abstract translation: 公开了一种用于自主扫描传感器面板装置的系统和方法。 传感器面板处理器可以在经过第一预定量的时间之后被禁用，而传感器面板装置不会感测任何事件。 还可以禁用一个或多个系统时钟来节省电力。 当处理器和一个或多个系统时钟被禁用时，传感器面板设备可以周期性地自动扫描传感器面板以进行触摸活动。 如果自主扫描的一个或多个结果超过阈值，则传感器面板设备重新启用处理器和一个或多个时钟来主动扫描传感器面板。 如果不超过阈值，则传感器面板设备将继续周期性地自动扫描传感器面板而无需处理器的介入。 传感器面板设备可以周期性地执行校准功能，以解决系统中可能存在的漂移。