公开(公告)号：US20090322711A1

公开(公告)日：2009-12-31

申请号：US12146349

申请日：2008-06-25

申请人： THOMAS S. DAVID ,  BRIAN CALOWAY ,  GOLAM CHOWDHURY ,  BRENT WILSON ,  FARRIS BAR ,  DOUGLAS PIASECKI

发明人： THOMAS S. DAVID ,  BRIAN CALOWAY ,  GOLAM CHOWDHURY ,  BRENT WILSON ,  FARRIS BAR ,  DOUGLAS PIASECKI

IPC分类号： G06F3/01 ,  G09G5/00 ,  G09G3/36

CPC分类号： G06F3/044 ,  G06F3/0412 ,  G09G3/18 ,  G09G2330/021 ,  G09G2360/144 ,  G09G2360/145

摘要： An integrated circuit comprises a host interface control block for providing a connection between the integrated circuit and a master controller device. The integrated circuit further includes a plurality of I/O pins. A capacitive touch sense circuitry enables detection of actuation of at least one capacitor switch of a capacitive sensor array connected to at least a portion of the plurality of I/O pins. An LCD controller drives at least one LCD connected to at least a portion of the plurality of I/O pins. The integrated circuit, responsive to signals received from the master controller device over the host interface control block, may be configured to monitor outputs from the capacitive sensor array in a first mode of operation. In a second mode of operation, the capacitive sensor array may be configured to drive at least one LCD. Finally, in a third mode of operation, the integrated circuit may be configured to both monitor outputs of the capacitive sensor array and drive the at least one LCD.

摘要翻译： 集成电路包括用于提供集成电路和主控制器装置之间的连接的主机接口控制块。 集成电路还包括多个I / O引脚。 电容式触摸感测电路使得​​能够检测连接到多个I / O引脚的至少一部分的电容式传感器阵列的至少一个电容器开关的致动。 LCD控制器驱动连接到多个I / O引脚的至少一部分的至少一个LCD。 集成电路响应于通过主机接口控制块从主控制器设备接收到的信号，可被配置为在第一操作模式下监视来自电容式传感器阵列的输出。 在第二操作模式中，电容式传感器阵列可被配置成驱动至少一个LCD。 最后，在第三种操作模式中，集成电路可以被配置成既监视电容式传感器阵列的输出并驱动至少一个LCD。

公开(公告)号：US20090322410A1

公开(公告)日：2009-12-31

申请号：US12146352

申请日：2008-06-25

申请人： Thomas S. David ,  Brian Caloway ,  Golam Chowdhury ,  Brent Wilson ,  Farris Bar ,  Douglas Piasecki

发明人： Thomas S. David ,  Brian Caloway ,  Golam Chowdhury ,  Brent Wilson ,  Farris Bar ,  Douglas Piasecki

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F3/0412 ,  G06F3/0416

摘要： A capacitive touch sensor circuitry comprises an interface for interconnecting with a plurality of I/O pins that connect to rows and columns of a capacitive sensor array. Monitoring circuitry, responsive to inputs from the plurality of I/O pins, determines when a capacitive switch in the capacitive sensor array has been actuated and stores an indication of the actuation of the capacitive switch. The monitoring circuitry then generates an interrupt responsive to the determined actuation. A control engine controls a manner in which the monitoring circuitry monitors the plurality of I/O pins. The control engine and the monitoring circuitry may be configured to monitor the plurality of I/O pins in a plurality of operating modes.

摘要翻译： 电容式触摸传感器电路包括用于与连接到电容式传感器阵列的行和列的多个I / O引脚互连的接口。 响应于来自多个I / O引脚的输入的监控电路确定电容式传感器阵列中的电容开关何时已被致动并且存储电容开关的致动指示。 监控电路然后响应所确定的致动产生中断。 控制引擎控制监视电路监视多个I / O引脚的方式。 控制引擎和监控电路可以被配置为以多种操作模式监视多个I / O引脚。

公开(公告)号：US20100079439A1

公开(公告)日：2010-04-01

申请号：US12241800

申请日：2008-09-30

申请人： FARRIS BAR ,  GOLAM R. CHOWDHURY ,  DOUGLAS PIASECKI ,  THOMAS S. DAVID

发明人： FARRIS BAR ,  GOLAM R. CHOWDHURY ,  DOUGLAS PIASECKI ,  THOMAS S. DAVID

IPC分类号： G06F3/038

CPC分类号： G09G3/3696 ,  G09G3/04 ,  G09G2330/021

摘要： Charge pump circuitry comprises a voltage for generating a first regulated voltage. A low drop out regulator generates a second regulated voltage responsive to the first regulated voltage. A charge pump voltage generation circuit generates a voltage. First and second resistor strings are responsive to the generated voltage. The first resistor string provides a first plurality of bias voltages to an LCD responsive to the voltage in a first mode of operation and the second resistor string provides faster charging and discharging of the connected LCD elements responsive to a second mode of operation.

摘要翻译： 电荷泵电路包括用于产生第一调节电压的电压。 低压降稳压器响应于第一调节电压产生第二调节电压。 电荷泵电压产生电路产生电压。 第一和第二电阻器串响应于所产生的电压。 第一电阻器串响应于第一操作模式中的电压而向LCD提供第一多个偏压，并且响应于第二操作模式，第二电阻串提供连接的LCD元件的更快的充电和放电。