公开(公告)号：US10372271B2

公开(公告)日：2019-08-06

申请号：US14335551

申请日：2014-07-18

Applicant: Apple Inc.

Inventor： Jacob L. Matlick ,  Adam Geboff

IPC: G06F3/044 ,  G06F3/041 ,  G06F1/3234

Abstract: The adjustment of stimulation signal amplitudes in capacitive touch sensor panels and/or styli to reduce power consumption while preserving satisfactory touch performance is disclosed, in particular in situations where the noise level is not significant and there is excess SNR margin. To accomplish this, one or more metrics can be measured, calculated or otherwise determined to use as a predictor of touch performance, and these metrics can be processed to determine the minimum stimulation voltage required to maintain acceptable touch performance.

公开(公告)号：US10061450B2

公开(公告)日：2018-08-28

申请号：US14869982

申请日：2015-09-29

Applicant: Apple Inc.

Inventor： Shahrooz Shahparnia ,  Christopher Tenzin Mullens ,  Martin Paul Grunthaner ,  Adam Geboff

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：US20160018921A1

公开(公告)日：2016-01-21

申请号：US14335551

申请日：2014-07-18

Applicant: Apple Inc.

Inventor： Jacob L. MATLICK ,  Adam Geboff

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F1/3262 ,  G06F3/0416

Abstract: The adjustment of stimulation signal amplitudes in capacitive touch sensor panels and/or styli to reduce power consumption while preserving satisfactory touch performance is disclosed, in particular in situations where the noise level is not significant and there is excess SNR margin. To accomplish this, one or more metrics can be measured, calculated or otherwise determined to use as a predictor of touch performance, and these metrics can be processed to determine the minimum stimulation voltage required to maintain acceptable touch performance.

Abstract translation: 特别是在噪声水平不显着且存在过多的SNR余量的情况下，公开了电容式触摸传感器面板和/或触笔中刺激信号幅度的调整以降低功耗，同时保持令人满意的触摸性能。 为了实现这一点，可以测量，计算或以其他方式确定一个或多个度量以用作触摸性能的预测器，并且可以处理这些度量以确定维持可接受的触摸性能所需的最小刺激电压。

公开(公告)号：US09848069B2

公开(公告)日：2017-12-19

申请号：US14496314

申请日：2014-09-25

Applicant: Apple Inc.

Inventor： Adam Geboff ,  Sriram Hariharan ,  Joakim Linde ,  Li-Quan Tan ,  Shahrooz Shahparnia

IPC: H04W4/00 ,  H04W56/00 ,  H04L29/08 ,  H04L29/06 ,  H04W52/02

CPC classification number: H04L69/329 ,  H04L69/28 ,  H04W4/80 ,  H04W52/0274 ,  H04W56/00 ,  Y02D30/40 ,  Y02D70/142 ,  Y02D70/144

Abstract: Time synchronization between a central wireless communication device and a peripheral wireless communication device is described. Events associated with an application are time stamped at the central wireless communication device, and one or more link layer messages are sent to the peripheral wireless communication device to provide time stamp information to replicate the event timing at the peripheral wireless communication device. A first link layer message includes information about an internal Bluetooth clock to calibrate a corresponding internal clock value at the peripheral wireless communication device. A second link layer message includes information about a current value for the Bluetooth clock and also a value for an offset that provides a time position at a finer granularity than the Bluetooth clock within a timeslot specified by the Bluetooth clock value. Application layer event synchronization between the central and peripheral wireless communication devices allow for power reduced dormant states between events.

公开(公告)号：US20150092642A1

公开(公告)日：2015-04-02

申请号：US14496314

申请日：2014-09-25

Applicant: Apple Inc.

Inventor： Adam Geboff ,  Sriram Hariharan ,  Joakim Linde ,  Li-Quan Tan ,  Shahrooz Shahparnia

IPC: H04J3/06 ,  H04L29/08 ,  H04W4/00

CPC classification number: H04L69/329 ,  H04L69/28 ,  H04W4/80 ,  H04W52/0274 ,  H04W56/00 ,  Y02D30/40 ,  Y02D70/142 ,  Y02D70/144

Abstract: Time synchronization between a central wireless communication device and a peripheral wireless communication device is described. Events associated with an application are time stamped at the central wireless communication device, and one or more link layer messages are sent to the peripheral wireless communication device to provide time stamp information to replicate the event timing at the peripheral wireless communication device. A first link layer message includes information about an internal Bluetooth clock to calibrate a corresponding internal clock value at the peripheral wireless communication device. A second link layer message includes information about a current value for the Bluetooth clock and also a value for an offset that provides a time position at a finer granularity than the Bluetooth clock within a timeslot specified by the Bluetooth clock value. Application layer event synchronization between the central and peripheral wireless communication devices allow for power reduced dormant states between events.

Abstract translation: 描述了中央无线通信设备和外围无线通信设备之间的时间同步。 与应用相关联的事件在中央无线通信设备处被时间标记，并且一个或多个链路层消息被发送到外围无线通信设备，以提供时间戳信息来复制外围无线通信设备处的事件定时。 第一链路层消息包括关于内部蓝牙时钟的信息，以在外围无线通信设备上校准相应的内部时钟值。 第二链路层消息包括关于蓝牙时钟的当前值的信息，以及与由蓝牙时钟值指定的时隙内的蓝牙时钟相比在更细粒度处提供时间位置的偏移值。 中央和外围无线通信设备之间的应用层事件同步允许事件之间的功率降低休眠状态。