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1. 发明申请

WO2019118137A1 WIRELESS CHARGING DEVICE WITH MULTI-TONE DATA RECEIVER AND ACTIVE POWER SUPPLY NOISE CANCELLATION CIRCUITRY 审中-公开
公开(公告)号：WO2019118137A1
公开(公告)日：2019-06-20
申请号：PCT/US2018/062000
申请日：2018-11-20
申请人： APPLE INC.
发明人： MALKIN, Moshe, H. , AGARWAL, Manu , GARBUS, Brandon, R.
IPC分类号： H04B1/10 , H02J50/10
摘要： A wireless power transmitting device transmits wireless power signals modulated at a given power frequency to a wireless power receiving device using a wireless power transmitting coil. The wireless power receiving device may transmit data signals to the wireless power transmitting device. The wireless power transmitting device may include a data receiver that is coupled to the wireless power transmitting coil and that receives the transmitted data. The data receiver may include an input stage, bandpass filter circuitry, demodulator circuitry, and a data stream combiner. The data receiver may further include a power supply noise cancellation circuit. The power supply noise cancellation circuit may include an input stage, a baseband filter, a window filter, a down-sampler, and a difference filter. The power supply noise cancellation circuit may be coupled to the data stream combiner and is configured to mitigate power supply noise interference in the received data.

2. 发明申请

WO2014084987A1 NOISE CORRECTION FOR STYLUS APPLICATIONS ON TABLETS AND OTHER TOUCH DEVICES 审中-公开
标题翻译：用于片剂和其他触摸装置的STYLUS应用的噪声校正
公开(公告)号：WO2014084987A1
公开(公告)日：2014-06-05
申请号：PCT/US2013/066244
申请日：2013-10-22
申请人： APPLE INC.
发明人： AGARWAL, Manu , SHAHPARNIA, Shahrooz , GRUNTHANER, Martin, Paul
IPC分类号： G06F3/041 , G06F3/044 , G06F3/0354
CPC分类号： G06F3/033 , G06F3/03545 , G06F3/0418 , G06F3/044
摘要： A touch sensitive device capable of detecting signals generated by a stylus and correcting the detected stylus signals for effects due to noise present on the device is disclosed. In one example, signals are taken from one or more electrodes that are a predetermined distance away from an electrode in which a stylus signal is detected. The predetermined distance can be empirically determined such that a noise estimate can be generated such that the electrodes have a higher probability of containing only noise that is highly correlated to the noise present on a detected stylus signal. The generated noise estimate is then subtracted from a detected stylus signal to reduce the effect of noise on the stylus signal.
摘要翻译：公开了能够检测由触针产生的信号并且由于存在于设备上的噪声的影响来校正检测到的触针信号的触敏设备。在一个示例中，从距离其中检测到触笔信号的电极预定距离的一个或多个电极获取信号。可以经验地确定预定距离，使得可以产生噪声估计，使得电极具有仅包含与检测到的触笔信号上存在的噪声高度相关的噪声的较高概率。然后从检测到的触针信号中减去所产生的噪声估计，以减少噪声对触针信号的影响。

3. 发明申请

WO2015187329A1 MID-FRAME BLANKING 审中-公开
标题翻译：中框布局
公开(公告)号：WO2015187329A1
公开(公告)日：2015-12-10
申请号：PCT/US2015/030731
申请日：2015-05-14
申请人： APPLE INC.
发明人： TRIPATHI, Brijesh , AGARWAL, Manu , HOLLAND, Peter F.
IPC分类号： G06F3/041
CPC分类号： G06F3/0412 , G06F3/0416 , G06F2203/04101 , G06T1/20 , H04N3/24 , H04N2101/00
摘要： Systems, apparatuses, and methods for performing mid-frame blanking. A first portion of a frame is driven to a display and then a first mid-frame blanking interval is generated. Following this first mid-frame blanking interval, a second portion of the frame is driven to the display, followed by a second mid-frame blanking interval, followed by a third portion of the frame, and so on. Any number of mid-frame blanking intervals may be introduced in a given frame. During each mid-frame blanking interval, touch sensing is performed to detect touch events on the screen for in-cell touch type displays. For displays with touch sensors electrically separated from the display common voltage layer, special sense scan steps are performed during mid-frame blanking intervals. By performing touch sensing or special sense scan steps during a frame rather than only at the end of a frame, the performance of touch sensing is improved.
摘要翻译：执行中帧消隐的系统，设备和方法。帧的第一部分被驱动到显示器，然后产生第一中间帧消隐间隔。在该第一中间帧消隐间隔之后，帧的第二部分被驱动到显示器，随后是第二中间帧消隐间隔，随后是帧的第三部分，等等。可以在给定的帧中引入任何数量的中帧消隐间隔。在每个中间帧消隐间隔期间，执行触摸感测以检测用于小区内触摸式显示的屏幕上的触摸事件。对于具有与显示器公共电压层电气分离的触摸传感器的显示器，在中帧消隐间隔期间执行特殊感测扫描步骤。通过在帧期间执行触摸感测或特殊感测扫描步骤，而不仅仅是在帧的结尾处，提高了触摸感测的性能。

4. 发明申请

WO2014158748A1 CHANNEL AGGREGATION FOR OPTIMAL STYLUS DETECTION 审中-公开
标题翻译：通道检测优化STYLUS检测
公开(公告)号：WO2014158748A1
公开(公告)日：2014-10-02
申请号：PCT/US2014/019822
申请日：2014-03-03
申请人： APPLE INC.
发明人： SHAHPARNIA, Shahrooz , WHITE, Kevin, J. , AGARWAL, Manu
IPC分类号： G06F3/046 , G06F3/0354
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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