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1. 发明授权

US12079420B2 Power management for touch controller 有权
公开(公告)号：US12079420B2
公开(公告)日：2024-09-03
申请号：US16945733
申请日：2020-07-31
申请人： Apple Inc.
发明人： Christoph H. Krah , Thomas James Wilson
IPC分类号： G06F1/3287 , G06F1/3215 , G06F1/3234 , G06F1/3296 , G06F3/041
CPC分类号： G06F3/04166 , G06F1/3215 , G06F1/3262 , G06F1/3287 , G06F1/3296 , G06F3/041 , G06F3/0416 , Y02D30/50
摘要： Power management for a touch controller is disclosed. The touch controller can include a transmit section for transmitting stimulation signals to an associated touch sensor panel to drive the panel, where the touch controller can selectively adjust the transmit section to reduce power during the transmission. The touch controller can also include a receive section for receiving touch signals resulting from the driving of the panel, where the touch controller can selectively adjust the receive section to reduce power during the receipt of the touch signals. The touch controller can also include a demodulation section for demodulating the received touch signals to obtain touch event results, where the touch controller can selectively adjust the demodulation section to reduce power during the demodulation of the touch signals. The touch controller can also selectively reduce power below present low levels during idle periods.

2. 发明申请

US20140340345A1 CHANNEL SCAN LOGIC 审中-公开
标题翻译：频道扫描逻辑
公开(公告)号：US20140340345A1
公开(公告)日：2014-11-20
申请号：US14448893
申请日：2014-07-31
申请人： Apple Inc.
发明人： Minh-Dieu Thi VU , Thomas James Wilson , Christoph H. Krah
IPC分类号： G06F3/041
CPC分类号： G06F3/0416 , G06F1/3262 , G06F3/03545 , G06F3/041 , G06F3/044 , G06F2203/04104
摘要： 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.
摘要翻译：公开了一种可自主扫描传感器面板的装置。可以通过实现信道扫描逻辑来执行自主扫描。在一个实施例中，信道扫描逻辑执行处理器通常将承担的许多功能，包括产生定时序列和获得结果数据; 将扫描结果数据与阈值进行比较（例如，以自动扫描模式）; 生成行数; 选择一个或多个扫描频带; 电源管理控制; 并以低功率模式执行自动扫描程序。

3. 发明申请

US20180088624A1 MASTER/SLAVE CONTROL OF TOUCH SENSING 审中-公开
公开(公告)号：US20180088624A1
公开(公告)日：2018-03-29
申请号：US15830700
申请日：2017-12-04
申请人： Apple Inc.
发明人： Thomas James Wilson , Richard James Reeve
IPC分类号： G06F1/12 , G06F3/041
CPC分类号： G06F1/12 , G06F3/0412 , G06F3/0416
摘要： Touch sensing can be accomplished using master/slave touch controllers that transmit drive signals to a touch surface and process sense signals including superpositions resulting from master/slave drive signals. The master/slave can drive and sense different sets of lines, respectively, of the touch surface. A communication link between master/slave can be established by transmitting a clock signal between master/slave, transmitting a command including sequence information to the slave, and initiating a communication sequence from the clock signal and sequence information. The slave can receive/transmit communications from/to the master during first/second portions of the communication sequence, respectively. Touch sensing operations can be synchronized between master/slave by transmitting a command including phase alignment information from master to slave, and generating slave clock signals based on the clock signal and the phase alignment information, such that sense signal processing by master clock signals are in-phase with sense signal processing by slave clock signals.

4. 发明授权

US09483141B2 Single-chip multi-stimulus sensor controller 有权
公开(公告)号：US09483141B2
公开(公告)日：2016-11-01
申请号：US14704885
申请日：2015-05-05
申请人： Apple Inc.
发明人： Steven P. Hotelling , Christoph H. Krah , Marduke Yousefpor , Thomas James Wilson
IPC分类号： G06F3/041 , G09G5/18 , G06F3/044
CPC分类号： G06F3/0416 , G06F3/044 , G06F2203/04104 , G09G5/18
摘要： A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.

5. 发明授权

US09383843B2 Multi-touch auto scanning 有权
公开(公告)号：US09383843B2
公开(公告)日：2016-07-05
申请号：US14455604
申请日：2014-08-08
申请人： Apple Inc.
发明人： Christoph H. Krah , Minh-Dieu Thi Vu , Thomas James Wilson
IPC分类号： G09G5/00 , G06F3/041 , G06F1/32 , G06F3/044
CPC分类号： G06F3/0418 , G06F1/3203 , G06F1/3262 , G06F3/041 , G06F3/0416 , G06F3/044 , G06F2203/04104
摘要： 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.

6. 发明授权

US09098286B2 Power management for touch controller 有权
标题翻译：触摸控制器的电源管理
公开(公告)号：US09098286B2
公开(公告)日：2015-08-04
申请号：US14600973
申请日：2015-01-20
申请人： Apple Inc.
发明人： Christoph H. Krah , Thomas James Wilson
IPC分类号： G06F1/00 , G06F1/32 , G06F3/041
CPC分类号： G06F1/3287 , G06F1/3215 , G06F1/3262 , G06F1/3296 , G06F3/041 , G06F3/0416 , Y02D50/20
摘要： Power management system or a touch controller can include a transmit section for transmitting stimulation signals to an associated touch sensor panel to drive the panel, where the touch controller can selectively adjust the transmit section to reduce power during the transmission. The touch controller can also include a receive section for receiving touch signals resulting from the driving of the panel, where the touch controller can selectively adjust the receive section to reduce power during the receipt of the touch signals. The touch controller can also include a demodulation section for demodulating the received touch signals to obtain touch event results, where the touch controller can selectively adjust the demodulation section to reduce power during the demodulation of the touch signals. The touch controller can also selectively reduce power below present low levels during idle periods. The touch controller can be incorporated into a touch sensitive device.
摘要翻译：电源管理系统或触摸控制器可以包括用于将刺激信号发送到相关联的触摸传感器面板以驱动面板的发送部分，其中触摸控制器可以选择性地调整发送部分以减少传输期间的功率。触摸控制器还可以包括用于接收由面板驱动产生的触摸信号的接收部分，其中触摸控制器可以选择性地调整接收部分以在接收触摸信号期间降低功率。触摸控制器还可以包括用于解调接收到的触摸信号以获得触摸事件结果的解调部分，其中触摸控制器可以选择性地调整解调部分以在解调触摸信号期间降低功率。触摸控制器还可以在空闲时段期间选择性地降低低于当前低电平的功率。触摸控制器可以结合到触敏设备中。

7. 发明授权

US09069408B2 Single-chip multi-stimulus sensor controller 有权
标题翻译：单片多刺激传感器控制器
公开(公告)号：US09069408B2
公开(公告)日：2015-06-30
申请号：US14056841
申请日：2013-10-17
申请人： Apple Inc.
发明人： Steve Porter Hotelling , Christoph Horst Krah , Marduke Yousefpor , Thomas James Wilson
IPC分类号： G06F3/045 , G06F3/041 , G06F3/044
CPC分类号： G06F3/0416 , G06F3/044 , G06F2203/04104 , G09G5/18
摘要： A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.
摘要翻译：用于多触摸传感器的多激励控制器形成在单个集成电路（单芯片）上。多激励控制器包括发射振荡器，基于发射振荡器的频率产生多个驱动信号的发射信号部分，同时传输驱动信号以驱动多点触摸传感器的多个发射信道，接收信号，其接收由所述多点触摸传感器的驱动产生的感测信号，接收振荡器和解调部分，所述解调部分基于所述接收振荡器的频率来解调所接收的感测信号以获得感测结果，所述解调部分包括：解调器和向量运算符。

8. 发明授权

US10747296B2 Power management for touch controller 有权
公开(公告)号：US10747296B2
公开(公告)日：2020-08-18
申请号：US16275961
申请日：2019-02-14
申请人： Apple Inc.
发明人： Christoph H. Krah , Thomas James Wilson
IPC分类号： G06F1/3287 , G06F3/041 , G06F1/3296 , G06F1/3215 , G06F1/3234
摘要： Power management for a touch controller is disclosed. The touch controller can include a transmit section for transmitting stimulation signals to an associated touch sensor panel to drive the panel, where the touch controller can selectively adjust the transmit section to reduce power during the transmission. The touch controller can also include a receive section for receiving touch signals resulting from the driving of the panel, where the touch controller can selectively adjust the receive section to reduce power during the receipt of the touch signals. The touch controller can also include a demodulation section for demodulating the received touch signals to obtain touch event results, where the touch controller can selectively adjust the demodulation section to reduce power during the demodulation of the touch signals. The touch controller can also selectively reduce power below present low levels during idle periods.

9. 发明授权

US10139890B2 Automatic low noise frequency selection 有权
公开(公告)号：US10139890B2
公开(公告)日：2018-11-27
申请号：US14715351
申请日：2015-05-18
申请人： Apple Inc.
发明人： Thomas James Wilson , Christoph H. Krah
IPC分类号： G06F3/041 , G06F1/32 , H04L27/26 , H04M11/06 , G06F3/044
摘要： Automatic low noise frequency selection for a touch sensitive device is disclosed. A low noise stimulation frequency can be automatically selected by device logic without intervention of the device processor to stimulate the device to sense a touch event at the device. The device logic can automatically select a set of low noise frequencies from among various frequencies based on the amount of noise introduced by the device at the various frequencies, where the frequencies with the lower noise amounts can be selected. The device logic can also automatically select a low noise frequency from among the selected set as the low noise stimulation frequency. The device logic can be implemented partially or entirely in hardware.

10. 发明授权

US09715306B2 Single chip multi-stimulus sensor controller 有权
公开(公告)号：US09715306B2
公开(公告)日：2017-07-25
申请号：US15270950
申请日：2016-09-20
申请人： Apple Inc.
发明人： Steven Porter Hotelling , Christoph Horst Krah , Marduke Yousefpor , Thomas James Wilson
IPC分类号： G06F3/041 , G06F3/044 , G09G5/18
CPC分类号： G06F3/0416 , G06F3/044 , G06F2203/04104 , G09G5/18
摘要： A multi-stimulus controller for a multi-touch sensor is formed on a single integrated circuit (single-chip). The multi-stimulus controller includes a transmit oscillator, a transmit signal section that generates a plurality of drive signals based on a frequency of the transmit oscillator, a plurality of transmit channels that transmit the drive signals simultaneously to drive the multi-touch sensor, a receive channel that receives a sense signal resulting from the driving of the multi-touch sensor, a receive oscillator, and a demodulation section that demodulates the received sense signal based on a frequency of the receive oscillator to obtain sensing results, the demodulation section including a demodulator and a vector operator.

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