CAPACITIVE STYLUS WITH PALM REJECTION
    1.
    发明申请
    CAPACITIVE STYLUS WITH PALM REJECTION 有权
    具有PALM抑制作用的电容式STYLUS

    公开(公告)号:US20120105361A1

    公开(公告)日:2012-05-03

    申请号:US13213895

    申请日:2011-08-19

    IPC分类号: G06F3/044 G06F3/033

    摘要: A system comprising a sensing device and a capacitive sense array configured to detect a presence of a passive touch object and a stylus where the capacitive sense array receives a transmit signal from the stylus via capacitive coupling. The system further comprising a processing device configured to determine the stylus location on the capacitive sense array based on the transmit signal and to synchronize the stylus to the capacitive sense array.A system further comprises a demodulation block to extract additional data that is modulated into the transmit signal by the stylus. The demodulation block is configured to extract the additional data by amplitude shift keying. The additional data comprises at least one of an applied force value of the stylus tip, a button status data, a battery status data, or a stylus acceleration data.

    摘要翻译: 一种包括感测装置和电容性感测阵列的系统,其被配置为检测无源触摸对象和触控笔的存在,其中电容性感测阵列经由电容耦合从触控笔接收发射信号。 所述系统还包括处理装置,其被配置为基于所述发射信号确定所述电容式感测阵列上的所述触针位置并使所述触笔与所述电容性感测阵列同步。 系统还包括一个解调块,用于提取通过触笔调制到发射信号中的附加数据。 解调块被配置为通过振幅键控提取附加数据。 附加数据包括触控笔尖的施加的力值,按钮状态数据,电池状态数据或触笔加速度数据中的至少一个。

    Force sensor baseline calibration
    3.
    发明授权
    Force sensor baseline calibration 有权
    强制传感器基线校准

    公开(公告)号:US09164605B1

    公开(公告)日:2015-10-20

    申请号:US12699741

    申请日:2010-02-03

    IPC分类号: G06F3/041

    摘要: An apparatus may include processing logic coupled with a force sensor input and a touch sensor input. The processing logic is configured to determine a relative force magnitude based on a force signal received at the force sensor input and a baseline measurement of the force sensor. The processing logic updates the baseline measurement in response to detecting that the touch signal indicates the absence of the one or more touches from the sensing surface.

    摘要翻译: 装置可以包括与力传感器输入和触摸传感器输入耦合的处理逻辑。 处理逻辑被配置为基于在力传感器输入处接收的力信号和力传感器的基线测量来确定相对力量级。 响应于检测到触摸信号指示不存在来自感测表面的一个或多个触摸,处理逻辑更新基线测量。

    METHOD AND APPARATUS TO IMPROVE NOISE IMMUNITY OF A TOUCH SENSE ARRAY
    7.
    发明申请
    METHOD AND APPARATUS TO IMPROVE NOISE IMMUNITY OF A TOUCH SENSE ARRAY 有权
    提高触觉感知阵列噪声免疫的方法和装置

    公开(公告)号:US20120268415A1

    公开(公告)日:2012-10-25

    申请号:US13246565

    申请日:2011-09-27

    IPC分类号: G06F3/044

    CPC分类号: G06F3/044 G06F3/0418

    摘要: A method for improving noise immunity of capacitive sensing circuit associated with a touch sense array is disclosed. The capacitive sensing circuit receives a response signal from a touch sense array. The capacitive sensing circuit measures a noise component of the response signal. When a level of noise of the noise component within a passband of the capacitive sensing circuit is greater than a threshold, the capacitive sensing circuit changes at least one parameter of capacitive sensing circuit to move the passband substantially outside the frequency spectrum of the noise component.

    摘要翻译: 公开了一种用于提高与触摸感测阵列相关的电容式感测电路的抗噪声性的方法。 电容感测电路从触摸感测阵列接收响应信号。 电容感测电路测量响应信号的噪声分量。 当电容感测电路的通带内的噪声分量的噪声水平大于阈值时,电容感测电路改变电容式感测电路的至少一个参数,以使通带基本上在噪声分量的频谱外移动。

    SMART SCANNING FOR A CAPACITIVE SENSE ARRAY
    8.
    发明申请
    SMART SCANNING FOR A CAPACITIVE SENSE ARRAY 有权
    智能扫描电容感测阵列

    公开(公告)号:US20120050216A1

    公开(公告)日:2012-03-01

    申请号:US13035061

    申请日:2011-02-25

    IPC分类号: G06F3/045

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A method and apparatus scan a plurality of scan groups in a capacitive sense array to generate signals corresponding to a mutual capacitance between the electrodes. Each of the plurality of scan groups is formed from a subset of the plurality of electrodes. A processing device identifies a scan group where the generated signal is affected by a presence of a conductive object. The processing device individually scans the subset of the plurality of sense elements in the identified scan group to determine a location of the conductive object.

    摘要翻译: 一种方法和装置扫描电容式感测阵列中的多个扫描组以产生对应于电极之间的互电容的信号。 多个扫描组中的每一个由多个电极的子集形成。 处理装置识别生成的信号受导电物体的存在影响的扫描组。 处理设备单独地扫描识别的扫描组中的多个感测元件的子集,以确定导电物体的位置。

    Smart scanning for a capacitive sensing array
    10.
    发明授权
    Smart scanning for a capacitive sensing array 有权
    智能扫描电容式感应阵列

    公开(公告)号:US09013441B2

    公开(公告)日:2015-04-21

    申请号:US13035061

    申请日:2011-02-25

    IPC分类号: G06F3/044 G06F3/041

    CPC分类号: G06F3/044 G06F3/0416

    摘要: A method and apparatus scan a plurality of scan groups in a capacitive sense array to generate signals corresponding to a mutual capacitance between the electrodes. Each of the plurality of scan groups is formed from a subset of the plurality of electrodes. A processing device identifies a scan group where the generated signal is affected by a presence of a conductive object. The processing device individually scans the subset of the plurality of sense elements in the identified scan group to determine a location of the conductive object.

    摘要翻译: 一种方法和装置扫描电容式感测阵列中的多个扫描组以产生对应于电极之间的互电容的信号。 多个扫描组中的每一个由多个电极的子集形成。 处理装置识别生成的信号受导电物体的存在影响的扫描组。 处理设备单独地扫描识别的扫描组中的多个感测元件的子集,以确定导电物体的位置。