公开(公告)号：US09310825B2

公开(公告)日：2016-04-12

申请号：US12910556

申请日：2010-10-22

申请人： Eric Bohannon

发明人： Eric Bohannon

IPC分类号： G05F3/16 ,  G05F3/30

CPC分类号： G05F3/30

摘要： A voltage reference circuit includes three or more current mirrors, an operational amplifier, a voltage buffer, two or more diodes, and one or more resistors. The operational amplifier has two inputs separately coupled to an output of two of the three or more current mirrors and an output coupled to the three current mirrors. The voltage buffer has an input coupled to an output of the other one of the three or more current mirrors and another input coupled to an output of the voltage buffer. Each of the diodes is coupled between the output of the two of the three or more current mirrors and one of ground and a negative supply. The one or more resistors are coupled to an output of one or more of the three or more current mirrors to tune effects of input current and establish a first set absolute voltage and temperature coefficient on a voltage reference.

摘要翻译： 电压参考电路包括三个或更多个电流镜，运算放大器，电压缓冲器，两个或更多个二极管以及一个或多个电阻器。 运算放大器具有分别耦合到三个或更多个电流镜中的两个的输出的两个输入和耦合到三个电流镜的输出。 电压缓冲器具有耦合到三个或更多个电流镜中的另一个的输出的输入和耦合到电压缓冲器的输出的另一个输入。 每个二极管耦合在三个或更多个电流镜中的两个的输出之间，并且接地和负电源中的一个。 一个或多个电阻器耦合到三个或更多个电流镜中的一个或多个电流镜的输出，以调节输入电流的影响并在电压参考上建立第一组绝对电压和温度系数。

公开(公告)号：US20120068949A1

公开(公告)日：2012-03-22

申请号：US13233790

申请日：2011-09-15

申请人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

发明人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

IPC分类号： G06F3/041

CPC分类号： G06F3/044 ,  G06F3/0418

摘要： An input device processing system comprises a sensor module that transmits a first transmitter signal with a transmitter electrode and receives a resulting signal with a receiver electrode. The first transmitter signal comprises a first transmitter frequency, and the resulting signal comprises effects corresponding to the first transmitter signal. A demodulation module demodulates the resulting signal to produce a first signal (e.g., an upper sideband signal) and a second signal (a lower sideband signal), selectably determines a first measurement of a change in capacitive coupling between the transmitter electrode and the receiver electrode based on at least one of the first and second signals, and determines positional information for an input object based on the first measurement.

摘要翻译： 输入设备处理系统包括传感器模块，该传感器模块用发射机电极发送第一发射机信号，并用接收机电极接收所得到的信号。 第一发射机信号包括第一发射机频率，并且所得到的信号包括对应于第一发射机信号的效应。 解调模块解调得到的信号以产生第一信号（例如，上边带信号）和第二信号（下边带信号），可选地确定发射机电极和接收器电极之间的电容耦合变化的第一测量 基于第一和第二信号中的至少一个，并且基于第一测量来确定输入对象的位置信息。

公开(公告)号：US20110148389A1

公开(公告)日：2011-06-23

申请号：US12910556

申请日：2010-10-22

申请人： Eric Bohannon

发明人： Eric Bohannon

IPC分类号： G05F3/16

CPC分类号： G05F3/30

摘要： A voltage reference circuit includes three or more current mirrors, an operational amplifier, a voltage buffer, two or more diodes, and one or more resistors. The operational amplifier has two inputs separately coupled to an output of two of the three or more current mirrors and an output coupled to the three current mirrors. The voltage buffer has an input coupled to an output of the other one of the three or more current mirrors and another input coupled to an output of the voltage buffer. Each of the diodes is coupled between the output of the two of the three or more current mirrors and one of ground and a negative supply. The one or more resistors are coupled to an output of one or more of the three or more current mirrors to tune effects of input current and establish a first set absolute voltage and temperature coefficient on a voltage reference.

摘要翻译： 电压参考电路包括三个或更多个电流镜，运算放大器，电压缓冲器，两个或更多个二极管以及一个或多个电阻器。 运算放大器具有分别耦合到三个或更多个电流镜中的两个的输出的两个输入和耦合到三个电流镜的输出。 电压缓冲器具有耦合到三个或更多个电流镜中的另一个的输出的输入和耦合到电压缓冲器的输出的另一个输入。 每个二极管耦合在三个或更多个电流镜中的两个的输出之间，并且接地和负电源中的一个。 一个或多个电阻器耦合到三个或更多个电流镜中的一个或多个电流镜的输出，以调节输入电流的影响并在电压参考上建立第一组绝对电压和温度系数。

公开(公告)号：US20120068966A1

公开(公告)日：2012-03-22

申请号：US13233781

申请日：2011-09-15

申请人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

发明人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

IPC分类号： G06F3/044 ,  G06F3/045

CPC分类号： G06F3/044 ,  G06F3/0418

摘要： An input device processing system comprises a sensor module that transmits a first transmitter signal with a transmitter electrode and receives a resulting signal with a receiver electrode. The first transmitter signal comprises a first transmitter frequency, and the resulting signal comprises effects corresponding to the first transmitter signal. A demodulation module demodulates the resulting signal to produce a first signal (e.g., an upper sideband signal) and a second signal (a lower sideband signal), selectably determines a first measurement of a change in capacitive coupling between the transmitter electrode and the receiver electrode based on at least one of the first and second signals, and determines positional information for an input object based on the first measurement.

公开(公告)号：US08847899B2

公开(公告)日：2014-09-30

申请号：US13233790

申请日：2011-09-15

申请人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

发明人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

IPC分类号： G06F3/041 ,  G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0418

摘要： An input device processing system comprises a sensor module that transmits a first transmitter signal with a transmitter electrode and receives a resulting signal with a receiver electrode. The first transmitter signal comprises a first transmitter frequency, and the resulting signal comprises effects corresponding to the first transmitter signal. A demodulation module demodulates the resulting signal to produce a first signal (e.g., an upper sideband signal) and a second signal (a lower sideband signal), selectably determines a first measurement of a change in capacitive coupling between the transmitter electrode and the receiver electrode based on at least one of the first and second signals, and determines positional information for an input object based on the first measurement.

摘要翻译： 输入设备处理系统包括传感器模块，该传感器模块用发射机电极发送第一发射机信号，并用接收机电极接收所得到的信号。 第一发射机信号包括第一发射机频率，并且所得到的信号包括对应于第一发射机信号的效应。 解调模块解调得到的信号以产生第一信号（例如，上边带信号）和第二信号（下边带信号），可选地确定发射机电极和接收器电极之间的电容耦合变化的第一测量 基于第一和第二信号中的至少一个，并且基于第一测量来确定输入对象的位置信息。

公开(公告)号：US08730204B2

公开(公告)日：2014-05-20

申请号：US13233781

申请日：2011-09-15

申请人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

发明人： Clyde Washburn ,  Eric Bohannon ,  Imre Knausz ,  Kirk Hargreaves

IPC分类号： G06F3/045

CPC分类号： G06F3/044 ,  G06F3/0418

摘要： An input device processing system comprises a sensor module that transmits a first transmitter signal with a transmitter electrode and receives a resulting signal with a receiver electrode. The first transmitter signal comprises a first transmitter frequency, and the resulting signal comprises effects corresponding to the first transmitter signal. A demodulation module demodulates the resulting signal to produce a first signal (e.g., an upper sideband signal) and a second signal (a lower sideband signal), selectably determines a first measurement of a change in capacitive coupling between the transmitter electrode and the receiver electrode based on at least one of the first and second signals, and determines positional information for an input object based on the first measurement.