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公开(公告)号：US20220382409A1
公开(公告)日：2022-12-01
申请号：US17818250
申请日：2022-08-08
申请人： Apple Inc.
摘要： Self capacitance touch circuits to cancel the effects of parasitic capacitance in a touch sensitive device are disclosed. One circuit can generate a parasitic capacitance cancelation signal that can be injected into touch sensing circuitry to cancel the parasitic capacitance. Another circuit can adjust the phase and magnitude of the parasitic capacitance cancelation signal based on characteristics of channels in the touch sensing circuitry so as to fine tune the parasitic capacitance cancelations. Another circuit can drive a guard plate and touch panel electrodes so as to cancel the parasitic capacitances between the panel and the plate and between the electrodes.
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公开(公告)号：US20190138152A1
公开(公告)日：2019-05-09
申请号：US16201730
申请日：2018-11-27
申请人： Apple Inc.
摘要： A touch panel electrode structure for user grounding correction in a touch panel is disclosed. The electrode structure can include an array of electrodes for sensing a touch at the panel, and multiple jumpers for selectively coupling groups of the electrodes together to form electrode rows and columns that cross each other. In some examples, the array can have a linear configuration and can form the rows and columns by coupling diagonally adjacent electrodes using the jumpers in a zigzag pattern, or the array can have a diamond configuration and can form the rows and columns by coupling linearly adjacent electrodes using the jumpers in a linear pattern. In various examples, each electrode can have a solid structure with a square shape, a reduced area with an outer electrode and a physically separate center electrode, a hollow center, or a solid structure with a hexagonal shape.
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公开(公告)号：US20180307371A1
公开(公告)日：2018-10-25
申请号：US16022434
申请日：2018-06-28
申请人： Apple Inc.
发明人： Amit NAYYAR , Shahrooz SHAHPARNIA
CPC分类号： G06F3/0416 , G06F1/3262
摘要： A touch controller can dynamically balance performance criteria, such as signal-to-noise ratio (SNR) thresholds, with power consumption for touch sensitive devices. A touch controller can be configured to reduce power consumption by reconfiguring bank boundaries for an active mode scan so as to reduce the number of banks scanned with a banked active mode scan. Additionally or alternatively, the stimulation signal amplitude and integration time of the touch controller can be dynamically adjusted to balance performance criteria with power consumption. Default integration times and default stimulation signal amplitudes can be increased in higher-noise operating environments to raise SNR, and can be reduced to save power in lower-noise operating environments. Additionally or alternatively, the touch scanning rate of the touch controller can be dynamically adjusted to reduce power consumption of the touch sensitive device or to reallocate touch sensing frames to increase integration times and thereby SNR performance.
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公开(公告)号：US20150029136A1
公开(公告)日：2015-01-29
申请号：US14067901
申请日：2013-10-30
申请人： Apple Inc.
发明人： Shahrooz SHAHPARNIA
IPC分类号： G06F3/044 , G06F3/0354 , G06F3/038 , G06F3/041
CPC分类号： G06F3/044 , G06F3/03545 , G06F3/0416
摘要： A superheterodyne stylus signal receiver for detecting a stylus stimulation signal from a stylus is provided. The stylus signal receiver can be configured to convert the touch signal into an intermediate frequency signal having a frequency that is less than that of the touch signal. In some examples, a hardware-implemented I-phase demodulator can be used to convert the touch signal into the intermediate frequency signal. The receiver can be further configured to perform IQ demodulation on the intermediate frequency signal at the intermediate frequency signal's lower frequency. In some examples, the IQ demodulation can be performed in firmware.
摘要翻译： 提供了一种用于从触控笔检测触针刺激信号的超外差触针信号接收器。 触笔信号接收器可以被配置为将触摸信号转换成具有小于触摸信号的频率的中频信号。 在一些示例中，硬件实现的I相解调器可用于将触摸信号转换成中频信号。 接收机还可以被配置为在中频信号的较低频率处对中频信号执行IQ解调。 在一些示例中，可以在固件中执行IQ解调。
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公开(公告)号：US20140354555A1
公开(公告)日：2014-12-04
申请号：US13908936
申请日：2013-06-03
申请人： Apple Inc.
IPC分类号： G06F3/0354
CPC分类号： G06F3/03545 , G06F3/0416 , G06F3/044
摘要： A touch input device configured to synchronize a stylus acquisition process with both a touch data acquisition process and a display refresh process is provided. The touch input device can include one or more processors that can synchronize the stylus data acquisition process to the touch data acquisition process by coordinating stylus scans to take place in between touch scans. The one or more processors can also virtual data banks to synchronize both the touch data acquisition and the stylus scan acquisition with the display refresh process.
摘要翻译： 提供了一种触摸输入装置，其被配置为使触笔获取处理与触摸数据获取处理和显示刷新处理同步。 触摸输入设备可以包括一个或多个处理器，其可以通过协调在触摸扫描之间发生的触笔扫描来将触控笔数据获取过程与触摸数据获取过程同步。 一个或多个处理器还可以使虚拟数据库同步触摸数据采集和触笔扫描采集与显示刷新处理。
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公开(公告)号：US20180364841A1
公开(公告)日：2018-12-20
申请号：US16112141
申请日：2018-08-24
申请人： Apple Inc.
摘要： Self capacitance touch circuits to cancel the effects of parasitic capacitance in a touch sensitive device are disclosed. One circuit can generate a parasitic capacitance cancelation signal that can be injected into touch sensing circuitry to cancel the parasitic capacitance. Another circuit can adjust the phase and magnitude of the parasitic capacitance cancelation signal based on characteristics of channels in the touch sensing circuitry so as to fine tune the parasitic capacitance cancelations. Another circuit can drive a guard plate and touch panel electrodes so as to cancel the parasitic capacitances between the panel and the plate and between the electrodes.
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公开(公告)号：US20180042556A1
公开(公告)日：2018-02-15
申请号：US15675478
申请日：2017-08-11
申请人： Apple Inc.
IPC分类号： A61B5/00 , A61B5/0408 , A61B5/0402 , A61B5/0205
CPC分类号： A61B5/6892 , A61B5/01 , A61B5/02055 , A61B5/02405 , A61B5/02438 , A61B5/02444 , A61B5/04028 , A61B5/04085 , A61B5/053 , A61B5/0816 , A61B5/1036 , A61B5/1102 , A61B5/1126 , A61B5/113 , A61B5/4815 , A61B5/6843 , A61B5/7278 , A61B2560/0242 , A61B2560/0252 , A61B2562/0214 , A61B2562/0247 , A61B2562/046
摘要： This relates to a monitoring system capable of measuring a plurality of vital signs. The monitoring system can include a plurality of sensors including, but not limited to, electrodes, piezoelectric sensors, temperature sensors, and accelerometers. The monitoring system can be capable of operating in one or more operation modes such as, for example: capacitance measurement mode, electrical measurement mode, piezoelectric measurement mode, temperature measurement mode, acceleration measurement mode, impedance measurement mode, and standby mode. Based on the measured values, the monitoring system can analyze the user's sleep, provide feedback and suggestions to the user, and/or can adjust or control the environmental conditions to improve the user's sleep. The monitoring system can further be capable of analyzing the sleep of the user(s) without directly contacting or attaching uncomfortable probes to the user(s) and without having to analyze the sleep in an unknown environment (e.g., a medical facility).
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公开(公告)号：US20160224189A1
公开(公告)日：2016-08-04
申请号：US15097179
申请日：2016-04-12
申请人： Apple Inc.
CPC分类号： G06F3/0418 , G06F3/0416 , G06F3/044 , G06F2203/04101 , G06F2203/04107 , G06F2203/04111
摘要： A touch panel electrode structure for user grounding correction in a touch panel is disclosed. The electrode structure can include an array of electrodes for sensing a touch at the panel, and multiple jumpers for selectively coupling groups of the electrodes together to form electrode rows and columns that cross each other. In some examples, the array can have a linear configuration and can form the rows and columns by coupling diagonally adjacent electrodes using the jumpers in a zigzag pattern, or the array can have a diamond configuration and can form the rows and columns by coupling linearly adjacent electrodes using the jumpers in a linear pattern. In various examples, each electrode can have a solid structure with a square shape, a reduced area with an outer electrode and a physically separate center electrode, a hollow center, or a solid structure with a hexagonal shape.
摘要翻译： 公开了一种用于触摸面板中用户接地校正的触摸面板电极结构。 电极结构可以包括用于感测面板上的触摸的电极阵列，以及用于选择性地将电极组合在一起以形成彼此交叉的电极行和列的多个跳线。 在一些示例中，阵列可以具有线性配置并且可以通过以锯齿形图案使用跳线耦合对角线相邻的电极来形成行和列，或者阵列可以具有金刚石构造，并且可以通过将线性相邻 使用线性图案的跳线的电极。 在各种实施例中，每个电极可以具有方形形状的实心结构，具有外部电极的减小的面积和物理上分离的中心电极，中空中心或具有六边形形状的固体结构。
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公开(公告)号：US20150035768A1
公开(公告)日：2015-02-05
申请号：US14333457
申请日：2014-07-16
申请人： Apple Inc.
IPC分类号： G06F3/041
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。
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公开(公告)号：US20140267070A1
公开(公告)日：2014-09-18
申请号：US13830127
申请日：2013-03-14
申请人： APPLE INC.
IPC分类号： G06F3/041
CPC分类号： G06F3/041 , G06F3/03545 , G06F3/046
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 receive at its input a combination of stylus receive channels that are combined in a manner to minimize noise while at the same time keeping the stylus signal strength uniform independent of the position of the stylus on the device.
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。 触摸输入设备包括多个触控笔信号检测器，其在其输入端接收组合的触笔接收通道，以最小化噪声的方式组合，同时保持触针信号强度不受触针位置的影响 装置。
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