公开(公告)号：US08599155B2

公开(公告)日：2013-12-03

申请号：US12912964

申请日：2010-10-27

Applicant: James S. Bartling ,  Padmaraja Yedamale ,  Jerry Hanauer

Inventor： James S. Bartling ,  Padmaraja Yedamale ,  Jerry Hanauer

IPC: G06F3/041

CPC classification number: G06F3/041

Abstract: A touch panel or screen has a serpentine transmission line fabricated on a substrate, e.g., printed circuit board, LCD, plasma or LED screen, etc., and has a constant impedance. A touch to the touch panel will cause a change of impedance of the transmission line at the location of the touch. Time domain reflectometry (TDR) is used for determining the location of the change of impedance of the transmission line by accurately measuring the return pulse time at the source of the initial pulse, and then converting the return pulse time to X-Y coordinates of the touch panel or screen.

Abstract translation: 触摸面板或屏幕具有在衬底（例如印刷电路板，LCD，等离子体或LED屏等）上制造的蛇形传输线，并且具有恒定的阻抗。 触摸面板的触摸将导致传感线在触摸位置处的阻抗变化。 时域反射法（TDR）用于通过精确测量初始脉冲源的返回脉冲时间，然后将返回脉冲时间转换为触摸面板的XY坐标，来确定传输线阻抗变化的位置 或屏幕。

公开(公告)号：US20120113047A1

公开(公告)日：2012-05-10

申请号：US13089701

申请日：2011-04-19

Applicant: Jerry Hanauer ,  Todd O'Connor

Inventor： Jerry Hanauer ,  Todd O'Connor

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04104

Abstract: Systems and methods for determining multiple touch events in a multi-touch sensor system are provided. The system may have a touch sensor including nodes defined by a plurality of electrodes, which may comprise a first and second set. The method may include measuring self capacitance for at least two electrodes, detecting a touched electrode, and measuring the mutual capacitance for only a subset of the nodes (e.g., fewer than all of the nodes and including at least the nodes corresponding to the touched electrodes) resulting in the detection of two or more touched nodes. The self capacitance measurements may be performed on each of the electrodes, and the touched electrodes may comprise electrodes from both the first and second sets. Alternatively, the self capacitance measurements may be performed only on electrodes in the first set, and the touched electrodes may comprise electrodes from only the first set.

Abstract translation: 提供了一种用于确定多点触摸传感器系统中的多个触摸事件的系统和方法。 系统可以具有包括由多个电极限定的节点的触摸传感器，其可以包括第一和第二组。 该方法可以包括测量至少两个电极的自身电容，检测触摸的电极以及仅测量节点的子集的互电容（例如，少于所有节点并且至少包括与触摸的电极对应的节点 ）导致两个或多个触摸节点的检测。 可以在每个电极上执行自电容测量，并且触摸的电极可以包括来自第一和第二组的电极。 或者，可以仅在第一组中的电极上执行自电容测量，并且触摸的电极可以仅包括来自第一组的电极。

公开(公告)号：US08933907B2

公开(公告)日：2015-01-13

申请号：US13089701

申请日：2011-04-19

Applicant: Jerry Hanauer ,  Todd O'Connor

Inventor： Jerry Hanauer ,  Todd O'Connor

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416 ,  G06F2203/04104

Abstract: Systems and methods for determining multiple touch events in a multi-touch sensor system are provided. The system may have a touch sensor including nodes defined by a plurality of electrodes, which may comprise a first and second set. The method may include measuring self capacitance for at least two electrodes, detecting a touched electrode, and measuring the mutual capacitance for only a subset of the nodes (e.g., fewer than all of the nodes and including at least the nodes corresponding to the touched electrodes) resulting in the detection of two or more touched nodes. The self capacitance measurements may be performed on each of the electrodes, and the touched electrodes may comprise electrodes from both the first and second sets. Alternatively, the self capacitance measurements may be performed only on electrodes in the first set, and the touched electrodes may comprise electrodes from only the first set.

Abstract translation: 提供了一种用于确定多点触摸传感器系统中的多个触摸事件的系统和方法。 系统可以具有包括由多个电极限定的节点的触摸传感器，其可以包括第一和第二组。 该方法可以包括测量至少两个电极的自身电容，检测触摸的电极以及仅测量节点的子集的互电容（例如，少于所有节点并且至少包括与触摸的电极对应的节点 ）导致两个或多个触摸节点的检测。 可以在每个电极上执行自电容测量，并且触摸的电极可以包括来自第一和第二组的电极。 或者，可以仅在第一组中的电极上执行自电容测量，并且触摸的电极可以仅包括来自第一组的电极。

公开(公告)号：US20110267309A1

公开(公告)日：2011-11-03

申请号：US13089786

申请日：2011-04-19

Applicant: Jerry Hanauer ,  Todd O'Connor

Inventor： Jerry Hanauer ,  Todd O'Connor

IPC: G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04104 ,  H03K17/962

Abstract: Systems and methods for determining multiple touch events in a multi-touch sensor system are provided. The system may include a capacitance measurement unit, a pulse drive unit, and a touch sensor having a plurality of nodes and a plurality of electrodes comprising at least two sets of electrodes. The method may include connecting a first electrode in a first set to the capacitance measurement unit, the pulse drive unit driving a voltage or current pulse onto a second electrode in a second set of electrodes. The method may further include the capacitance measurement unit measuring the mutual capacitance at a node corresponding to the first and second electrodes. The method may include comparing the measured mutual capacitance at the node with a previously measured mutual capacitance for the node, and reporting that the node has been touched if there has been a deviation from the previously measured mutual capacitance.

Abstract translation: 提供了一种用于确定多点触摸传感器系统中的多个触摸事件的系统和方法。 该系统可以包括电容测量单元，脉冲驱动单元和具有多个节点的触摸传感器和包括至少两组电极的多个电极。 该方法可以包括将第一组中的第一电极连接到电容测量单元，脉冲驱动单元将电压或电流脉冲驱动到第二组电极中的第二电极上。 该方法还可以包括电容测量单元，测量与第一和第二电极对应的节点处的互电容。 该方法可以包括将节点处测量的互电容与节点的先前测量的互电容进行比较，并且如果已经与先前测量的互电容有偏差，则报告节点已被触摸。

公开(公告)号：US08542215B2

公开(公告)日：2013-09-24

申请号：US13089786

申请日：2011-04-19

Applicant: Jerry Hanauer ,  Todd O'Connor

Inventor： Jerry Hanauer ,  Todd O'Connor

IPC: G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04104 ,  H03K17/962

Abstract: Systems and methods for determining multiple touch events in a multi-touch sensor system are provided. The system may include a capacitance measurement unit, a pulse drive unit, and a touch sensor having a plurality of nodes and a plurality of electrodes comprising at least two sets of electrodes. The method may include connecting a first electrode in a first set to the capacitance measurement unit, the pulse drive unit driving a voltage or current pulse onto a second electrode in a second set of electrodes. The method may further include the capacitance measurement unit measuring the mutual capacitance at a node corresponding to the first and second electrodes. The method may include comparing the measured mutual capacitance at the node with a previously measured mutual capacitance for the node, and reporting that the node has been touched if there has been a deviation from the previously measured mutual capacitance.

Abstract translation: 提供了一种用于确定多点触摸传感器系统中的多个触摸事件的系统和方法。 该系统可以包括电容测量单元，脉冲驱动单元和具有多个节点的触摸传感器和包括至少两组电极的多个电极。 该方法可以包括将第一组中的第一电极连接到电容测量单元，脉冲驱动单元将电压或电流脉冲驱动到第二组电极中的第二电极上。 该方法还可以包括电容测量单元，测量与第一和第二电极对应的节点处的互电容。 该方法可以包括将节点处测量的互电容与节点的先前测量的互电容进行比较，并且如果已经与先前测量的互电容有偏差，则报告节点已被触摸。

公开(公告)号：US20110267287A1

公开(公告)日：2011-11-03

申请号：US12912964

申请日：2010-10-27

Applicant: James S. Bartling ,  Padmaraja Yedamale ,  Jerry Hanauer

Inventor： James S. Bartling ,  Padmaraja Yedamale ,  Jerry Hanauer

IPC: G06F3/041

CPC classification number: G06F3/041

Abstract: A touch panel or screen has a serpentine transmission line fabricated on a substrate, e.g., printed circuit board, LCD, plasma or LED screen, etc., and has a constant impedance. A touch to the touch panel will cause a change of impedance of the transmission line at the location of the touch. Time domain reflectometry (TDR) is used for determining the location of the change of impedance of the transmission line by accurately measuring the return pulse time at the source of the initial pulse, and then converting the return pulse time to X-Y coordinates of the touch panel or screen.

Abstract translation: 触摸面板或屏幕具有在衬底（例如印刷电路板，LCD，等离子体或LED屏等）上制造的蛇形传输线，并且具有恒定的阻抗。 触摸面板的触摸将导致传感线在触摸位置处的阻抗变化。 时域反射法（TDR）用于通过精确测量初始脉冲源的返回脉冲时间，然后将返回脉冲时间转换为触摸面板的XY坐标，来确定传输线阻抗变化的位置 或屏幕。