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公开(公告)号：US20120105361A1
公开(公告)日：2012-05-03
申请号：US13213895
申请日：2011-08-19
CPC分类号： G06F3/044 , G06F3/03545 , G06F3/0416 , G06F3/046 , G06F2203/04104
摘要： A system comprising a sensing device and a capacitive sense array configured to detect a presence of a passive touch object and a stylus where the capacitive sense array receives a transmit signal from the stylus via capacitive coupling. The system further comprising a processing device configured to determine the stylus location on the capacitive sense array based on the transmit signal and to synchronize the stylus to the capacitive sense array.A system further comprises a demodulation block to extract additional data that is modulated into the transmit signal by the stylus. The demodulation block is configured to extract the additional data by amplitude shift keying. The additional data comprises at least one of an applied force value of the stylus tip, a button status data, a battery status data, or a stylus acceleration data.
摘要翻译： 一种包括感测装置和电容性感测阵列的系统，其被配置为检测无源触摸对象和触控笔的存在，其中电容性感测阵列经由电容耦合从触控笔接收发射信号。 所述系统还包括处理装置，其被配置为基于所述发射信号确定所述电容式感测阵列上的所述触针位置并使所述触笔与所述电容性感测阵列同步。 系统还包括一个解调块，用于提取通过触笔调制到发射信号中的附加数据。 解调块被配置为通过振幅键控提取附加数据。 附加数据包括触控笔尖的施加的力值，按钮状态数据，电池状态数据或触笔加速度数据中的至少一个。
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公开(公告)号：US20120105362A1
公开(公告)日：2012-05-03
申请号：US13213981
申请日：2011-08-19
CPC分类号： G06F3/044 , G06F3/03545 , G06F3/0416 , G06F3/046 , G06F2203/04104
摘要： A system and method for tracking a stylus on a capacitive sense array. The system comprising the capacitive sense array configured to detect a presence of the stylus, a processing device to generate a synchronization signal, and a transmitter to transmit the synchronization signal to the stylus to synchronize the stylus to the capacitive sense array. The system further comprises a magnetic antenna configured to inductively transmit the synchronization signal to the stylus, wherein the magnetic antenna is disposed around the outer edges of the capacitance sense array, according to an embodiment of the invention.
摘要翻译： 用于跟踪电容式感测阵列上的触控笔的系统和方法。 该系统包括被配置为检测触针的存在的电容性感测阵列，产生同步信号的处理装置，以及发送器，以将该同步信号发送到触控笔以将触笔同步到电容性感测阵列。 该系统还包括磁性天线，该磁性天线配置为将触发式的同步信号传感到触笔，其中根据本发明的实施例，磁性天线设置在电容式感测阵列的外边缘附近。
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