公开(公告)号：US20120262222A1

公开(公告)日：2012-10-18

申请号：US13240377

申请日：2011-09-22

申请人： Adam SCHWARTZ ,  Tracy Scott DATTALO ,  Robin HODGSON

发明人： Adam SCHWARTZ ,  Tracy Scott DATTALO ,  Robin HODGSON

IPC分类号： H03K17/96

CPC分类号： H03K17/9622 ,  G06F3/0418 ,  G06F3/044 ,  H03K2217/960705

摘要： A processing system for a capacitive input device comprises sensor circuitry and control logic. The sensor circuitry is configured to be communicatively coupled with sensor electrodes of the capacitive input device. The control logic is configured to operate the capacitive input device in a first mode comprising interference sensing at a first level and input object sensing. The control logic is also configured to operate the capacitive input device in a second mode instead of in the first mode in response to: interference measured in the first mode meeting an interference condition; and a determination that input is in a sensing region of the capacitive input device. While operating in the second mode, interference sensing with the capacitive input device is either not performed or else is performed at a second level that is lower in fidelity than the first level.

摘要翻译： 用于电容性输入装置的处理系统包括传感器电路和控制逻辑。 传感器电路被配置为与电容性输入设备的传感器电极通信地耦合。 控制逻辑被配置为以第一模式操作电容性输入设备，该第一模式包括在第一级的干扰感测和输入对象感测。 控制逻辑还被配置为响应于在第一模式中测量的干扰满足干扰条件而以第二模式而不是第一模式操作电容性输入设备; 以及确定输入在电容性输入装置的感测区域中。 当在第二模式下操作时，与电容性输入设备的干扰感测或者不被执行，否则在保真度比第一电平低的第二电平上执行。

公开(公告)号：US20110210939A1

公开(公告)日：2011-09-01

申请号：US13034679

申请日：2011-02-24

申请人： Joseph Kurth REYNOLDS ,  Shahrooz SHAHPARNIA ,  Adam SCHWARTZ ,  Joel JORDAN

发明人： Joseph Kurth REYNOLDS ,  Shahrooz SHAHPARNIA ,  Adam SCHWARTZ ,  Joel JORDAN

IPC分类号： G06F3/045

CPC分类号： G09G5/18 ,  G06F3/0412 ,  G06F3/0418 ,  G06F3/044

摘要： In a method of interference avoidance for a capacitive sensor device, a transmitter signal is transmitted with a transmitter electrode of the capacitive sensor device. A resulting signal is received with a receiver electrode of the capacitive sensor device. The resulting signal corresponds to the transmitter signal. A first demodulated output is acquired by demodulating the resulting signal in a first way. A second demodulated output is acquired by demodulating the resulting signal in a second way, where the second way and the first way differ. A shift is made from using the first demodulated output for determining positional information to using the second demodulated output for determining positional information. The shift is based at least in part upon an amount of interference.

摘要翻译： 在电容式传感器装置的避免干扰的方法中，发射机信号与电容式传感器装置的发射器电极一起传输。 用电容式传感器装置的接收器电极接收所得到的信号。 所得到的信号对应于发射机信号。 通过以第一方式解调所得到的信号来获取第一解调输出。 通过以第二方式解调所得到的信号获得第二解调输出，其中第二路和第一路不同。 通过使用用于确定位置信息的第一解调输出到使用用于确定位置信息的第二解调输出进行移位。 这种移动至少部分地基于干扰的程度。

公开(公告)号：US20120319988A1

公开(公告)日：2012-12-20

申请号：US13161267

申请日：2011-06-15

申请人： Adam SCHWARTZ

发明人： Adam SCHWARTZ

IPC分类号： G06F3/044

CPC分类号： G06F3/044 ,  G06F2203/04112

摘要： A capacitive sensing method includes transmitting a first transmitter signal with a first transmitter electrode such that the first transmitter signal includes a first plurality of sensing cycles. A resulting signal is received with a receiver electrode, wherein the resulting signal comprises effects corresponding to the first transmitter signal. The polarity of each sensing cycle of the first plurality of sensing cycles corresponds to a respective bit within a bit sequence of a first spreading code, and each sensing cycle of the first plurality of sensing cycles comprises a measurement interval and a polarity reset interval.

摘要翻译： 电容感测方法包括用第一发射器电极发送第一发射机信号，使得第一发射机信号包括第一多个感测周期。 用接收器电极接收所得到的信号，其中所得到的信号包括对应于第一发射机信号的效应。 第一多个感测周期的每个感测周期的极性对应于第一扩展码的比特序列内的相应比特，并且第一多个感测周期的每个感测周期包括测量间隔和极性重置间隔。

公开(公告)号：US20120229419A1

公开(公告)日：2012-09-13

申请号：US13414599

申请日：2012-03-07

申请人： Adam SCHWARTZ ,  Joseph Kurth Reynolds ,  Joel C. Jordan

发明人： Adam SCHWARTZ ,  Joseph Kurth Reynolds ,  Joel C. Jordan

IPC分类号： G06F3/044

CPC分类号： G06F3/0418 ,  G06F3/044

摘要： Embodiments of the invention generally provide a method and system that is able to minimize or remove the affect of substantially non-random electrical interference on an input device's ability to reliably and accurately sense the position of an object. In one embodiment, the input device is configured to systematically correct for a cyclic variation in the electromagnetic interference (EMI) generated by components within the electronic system, such as interference generated by the process of refreshing or updating an image on a display module that affects the capacitive sensing measurements acquired from a plurality of capacitive sensing elements. However, in some embodiments of the invention, the performance of an input device is improved by reducing the affect that external interference generated outside of the electronic system have on the position sensing data acquired by the input device.

摘要翻译： 本发明的实施例通常提供一种方法和系统，其能够最小化或去除对输入设备可靠且准确地感测物体的位置的能力的基本上非随机的电干扰的影响。 在一个实施例中，输入设备被配置为系统地校正由电子系统内的组件产生的电磁干扰（EMI）的循环变化，例如由刷新或更新影响显示模块上的图像的过程产生的干扰 从多个电容感测元件获取的电容感测测量。 然而，在本发明的一些实施例中，通过减少由电子系统外部产生的外部干扰对由输入装置获取的位置感测数据的影响，可以提高输入装置的性能。

公开(公告)号：US20140070875A1

公开(公告)日：2014-03-13

申请号：US13612726

申请日：2012-09-12

申请人： Jim DUNPHY ,  Adam SCHWARTZ ,  Joseph Kurth REYNOLDS

发明人： Jim DUNPHY ,  Adam SCHWARTZ ,  Joseph Kurth REYNOLDS

IPC分类号： H03K17/96

CPC分类号： G06F3/044 ,  G06F3/0418 ,  G06F2203/04107

摘要： A capacitive input device includes first and second pluralities of sensor electrodes disposed in a first region of a substrate. The first and second pluralities of sensor electrodes are substantially orthogonal to one another. The first region is configured to overlap a display screen. At least one routing trace is disposed in a second region of the substrate and is ohmically coupled to a sensor electrode of one of the first and second pluralities of sensor electrodes and also to a processing system. The second region comprises a non-display screen overlapping portion of the substrate. A compensation trace is disposed in the second region and ohmically coupled to the processing system. The compensation trace has substantially the same length as and is substantially parallel and proximate to the at least one routing trace. The compensation trace is not ohmically coupled to any sensor electrode located in the first region.

摘要翻译： 电容性输入装置包括设置在基板的第一区域中的第一和第二多个传感器电极。 第一和第二多个传感器电极基本上彼此正交。 第一区域被配置为与显示屏幕重叠。 至少一个布线迹线设置在基板的第二区域中，并且被欧姆耦合到第一和第二多个传感器电极中的一个的传感器电极以及处理系统。 第二区域包括基板的非显示屏幕重叠部分。 补偿迹线设置在第二区域中并且欧姆耦合到处理系统。 所述补偿迹线具有与所述至少一个路线迹线基本上相同的长度并且基本上平行并且靠近所述至少一个路线迹线。 补偿迹线不与位于第一区域中的任何传感器电极欧姆耦合。

公开(公告)号：US20140062937A1

公开(公告)日：2014-03-06

申请号：US13602049

申请日：2012-08-31

申请人： Adam SCHWARTZ ,  Joseph Kurth Reynolds

发明人： Adam SCHWARTZ ,  Joseph Kurth Reynolds

IPC分类号： G06F3/044 ,  G06F3/041

CPC分类号： G06F3/0418 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04108

摘要： Embodiments of the invention generally provide a method and apparatus that is configured to reduce the effects of interference that is undesirably provided to a transmitter signal that is delivered from a transmitter signal generating device to a sensor processor to determine if an input object is disposed within a touch sensing region of a touch sensing device. In one embodiment, the sensor processor includes a receiver channel that has circuitry that is configured to separately receive a transmitter signal delivered from a display processor and a sensor processor reference signal that is based on a display processor reference signal to reliably sense the presence of an object. Embodiments of the invention described herein thus provide an improved apparatus and method for reliably sensing the presence of an object by a touch sensing device.

摘要翻译： 本发明的实施例通常提供一种方法和装置，其被配置为减少不期望地提供给从发射机信号发生装置传送到传感器处理器的发射机信号的干扰的影响，以确定输入对象是否被布置在 触摸感测装置的触摸感测区域。 在一个实施例中，传感器处理器包括接收器通道，其具有被配置为分别接收从显示处理器传送的发送器信号的电路和基于显示处理器参考信号的传感器处理器参考信号，以可靠地感测存在 目的。 因此，本文描述的本发明的实施例因此提供了一种用于通过触摸感测装置可靠地感测物体的存在的改进的装置和方法。