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1. 发明授权

US08610443B1 Attenuator circuit of a capacitance-sensing circuit 有权
标题翻译：电容感应电路的衰减器电路
公开(公告)号：US08610443B1
公开(公告)日：2013-12-17
申请号：US13895115
申请日：2013-05-15
申请人： Andriy Ryshtun , Viktor Kremin , Mykhaylo Krekhovetskyy , Ruslan Omelchuk
发明人： Andriy Ryshtun , Viktor Kremin , Mykhaylo Krekhovetskyy , Ruslan Omelchuk
IPC分类号： G01R27/26
CPC分类号： G06F3/0416 , G06F3/03545 , G06F3/0418 , G06F3/044
摘要： Apparatuses and methods of input attenuator circuits are described. One sensing circuit includes an attenuator circuit to receive a signal from an electrode of a sense array. The attenuator circuit is configured to attenuate input current of the signal. The attenuator circuit includes an attenuation matrix including an input terminal to receive the signal and multiple resistors. The attenuation matrix is configured to split the input current into an output current of the attenuation signal on a first output terminal and a second output current on a second output terminal. The attenuation matrix is to output the attenuated signal on the first output terminal to an integrator of the sensing circuit. The attenuator circuit also includes a buffer coupled between the attenuation matrix and the integrator. The buffer is configured to maintain a substantially same voltage at the first output terminal and the second output terminal.
摘要翻译：描述输入衰减器电路的装置和方法。一个感测电路包括用于从感测阵列的电极接收信号的衰减器电路。衰减器电路经配置以衰减信号的输入电流。衰减器电路包括衰减矩阵，该衰减矩阵包括用于接收信号的输入端和多个电阻。衰减矩阵被配置为将输入电流分为第一输出端上的衰减信号的输出电流和第二输出端上的第二输出电流。衰减矩阵将第一输出端上的衰减信号输出到感测电路的积分器。衰减器电路还包括耦合在衰减矩阵和积分器之间的缓冲器。缓冲器被配置为在第一输出端子和第二输出端子处保持基本相同的电压。

2. 发明申请

US20130021291A1 QUADRATURE SIGNAL RECEIVER USING SYNCHRONIZED OSCILLATOR 有权
标题翻译：使用同步振荡器的平均信号接收器
公开(公告)号：US20130021291A1
公开(公告)日：2013-01-24
申请号：US13434571
申请日：2012-03-29
申请人： Viktor Kremin , Ruslan Omelchuk , Mykhaylo Krekhovelskyy , Milton Ribeiro
发明人： Viktor Kremin , Ruslan Omelchuk , Mykhaylo Krekhovelskyy , Milton Ribeiro
IPC分类号： G06F3/045 , G06F3/033
CPC分类号： G06F3/0416 , G06F3/03545 , G06F3/044 , G06F2203/04106
摘要： A system comprises a processing device, a signal generator to generate a first signal and a single receiver to receive a second signal from a capacitive sense array. The single receiver is configured to process the second signal for stylus sensing of a stylus proximate to the capacitive sense array in a first mode of operation and to process the second signal for touch sensing of a passive touch object proximate to the capacitive sense array in a second mode of operation. The second signal is unsynchronized with the first signal.
摘要翻译：系统包括处理装置，产生第一信号的信号发生器和从电容性感测阵列接收第二信号的单个接收器。单个接收器被配置为在第一操作模式中处理第二信号以用于接近电容性感测阵列的触笔的触控笔感测，并且处理第二信号以用于触摸感测靠近电容性感测阵列的被动触摸对象第二种操作模式。第二信号与第一信号不同步。

3. 发明授权

US09104251B1 Full-bridge tip driver for active stylus 有权
标题翻译：全桥尖端驱动程序，用于活动触控笔
公开(公告)号：US09104251B1
公开(公告)日：2015-08-11
申请号：US13336862
申请日：2011-12-23
申请人： Ruslan Omelchuk , Mykhaylo Krekhovelskyy
发明人： Ruslan Omelchuk , Mykhaylo Krekhovelskyy
IPC分类号： G06F3/0354 , G06F3/041
CPC分类号： G06F3/03545 , G06F1/169 , G06F3/0338 , G06F3/0412 , G06F3/0416 , G06F3/044 , G06F2203/0384 , G06F2203/04104 , G06F2203/04106 , G06F2203/04808
摘要： A method and apparatus to increase a transmit (TX) signal generated by an active stylus without increasing the power consumption of the active stylus. In one aspect, the active stylus increases the amplitude of the TX signal. In another aspect, the active stylus increases the TX signal by providing the capacitance of a body of a user to the stylus.
摘要翻译：一种用于增加由有源手写笔产生的发送（TX）信号而不增加有源触笔的功耗的方法和装置。在一个方面，有源手写笔增加了TX信号的幅度。在另一方面，活动触针通过将用户的身体的电容提供给触控笔来增加TX信号。

4. 发明授权

US08493360B2 Quadrature signal receiver using synchronized oscillator 有权
标题翻译：使用同步振荡器的正交信号接收机
公开(公告)号：US08493360B2
公开(公告)日：2013-07-23
申请号：US13434571
申请日：2012-03-29
申请人： Victor Kremin , Mykhaylo Krekhovelskyy , Ruslan Omelchuk , Milton Ribeiro
发明人： Victor Kremin , Mykhaylo Krekhovelskyy , Ruslan Omelchuk , Milton Ribeiro
IPC分类号： G06F3/045
CPC分类号： G06F3/0416 , G06F3/03545 , G06F3/044 , G06F2203/04106
摘要： A system comprises a processing device, a signal generator to generate a first signal and a single receiver to receive a second signal from a capacitive sense array. The single receiver is configured to process the second signal for stylus sensing of a stylus proximate to the capacitive sense array in a first mode of operation and to process the second signal for touch sensing of a passive touch object proximate to the capacitive sense array in a second mode of operation. The second signal is unsynchronized with the first signal.
摘要翻译：系统包括处理装置，产生第一信号的信号发生器和从电容性感测阵列接收第二信号的单个接收器。单个接收器被配置为在第一操作模式中处理第二信号以用于接近电容性感测阵列的触笔的触控笔感测，并且处理第二信号以用于触摸感测靠近电容性感测阵列的被动触摸对象第二种操作模式。第二信号与第一信号不同步。

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