公开(公告)号：US20130099805A1

公开(公告)日：2013-04-25

申请号：US13714345

申请日：2012-12-13

Applicant: Synaptics Incorporated

Inventor： Joseph Kurth REYNOLDS ,  Tracy Scott DATTALO ,  Ray A. TRENT, JR.

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G06F3/0202 ,  G06F3/044

Abstract: In a method for determining actuation of a first capacitive button having a first set of at least three sensor electrode elements associated with at least three distinct sensor electrodes, and wherein a sensor electrode element of the first set of sensor electrode elements and a sensor electrode element of a second set of at least three sensor electrode elements of a second capacitive button share at least one sensor electrode in common, indicia is received from the at least three distinct sensor electrodes comprising the first capacitive button. At least three electrode values are generated from the indicia. The at least three electrode values are utilized to determine actuation of the capacitive button.

Abstract translation: 在用于确定具有与至少三个不同传感器电极相关联的至少三个传感器电极元件的第一组的第一电容按钮的致动方法中，并且其中所述第一组传感器电极元件的传感器电极元件和传感器电极元件 第二组至少三个第二电容按钮的传感器电极元件共享共同的至少一个传感器电极，从包括第一电容按钮的至少三个不同的传感器电极接收标记。 从标记产生至少三个电极值。 使用至少三个电极值来确定电容按钮的致动。

公开(公告)号：US20160091999A1

公开(公告)日：2016-03-31

申请号：US14502884

申请日：2014-09-30

Applicant: Synaptics Incorporated

Inventor： Tracy Scott DATTALO

IPC: G06F3/044 ,  G02F1/1333 ,  H03K17/955 ,  G06F3/038

CPC classification number: G06F3/044 ,  G06F3/0383 ,  G06F3/0416 ,  H03K17/9622 ,  H03K2217/96073 ,  H03K2217/960745

Abstract: Examples of the present disclosure generally provide current feedback techniques for capacitive sensing with an input device. A processing system for an input device includes an operational amplifier having a non-inverting input, an inverting input, and an output. A voltage source is coupled to the non-inverting input. A first voltage-controlled current source is coupled between the output and the inverting input to form a feedback path. A second voltage-controlled current source is coupled to the output and configured for modifying a charge on a capacitor based on a control voltage at the output. A determination module is coupled to the capacitor and configured for determining a capacitance measurement at the inverting input based on the charge on the capacitor.

Abstract translation: 本公开的示例通常提供用于具有输入设备的电容感测的电流反馈技术。 一种用于输入装置的处理系统包括具有非反相输入，反相输入和输出的运算放大器。 电压源耦合到非反相输入端。 第一压控电流源耦合在输出端和反相输入端之间以形成反馈路径。 第二压控电流源耦合到输出端并被配置为基于输出端的控制电压来修改电容器上的电荷。 确定模块耦合到电容器并且被配置为基于电容器上的电荷来确定反相输入端的电容测量。

公开(公告)号：US20160170519A1

公开(公告)日：2016-06-16

申请号：US14571073

申请日：2014-12-15

Applicant: Synaptics Incorporated

Inventor： Tracy Scott DATTALO

IPC: G06F3/044 ,  G01D5/24

CPC classification number: G06F3/044 ,  G01D5/24

Abstract: Examples of the present disclosure generally relate to a switched capacitance technique for input sensing with an input device. A processing system includes an operational amplifier having a non-inverting input, an inverting input, and an output. The processing system further includes a first capacitor coupled between the output and the inverting input to form a feedback path, and a second capacitor. The processing system further includes a first switch coupled to the second capacitor. The first switch has a first state and a second state, where the first state couples the second capacitor to the first capacitor, and the second state couples the second capacitor to a measurement circuit. The processing system further includes a determination module coupled to the measurement circuit and configured to determine a capacitance measurement at the inverting input based on an amount of charge received by the second capacitor.

Abstract translation: 本公开的示例一般涉及用于输入设备的输入感测的开关电容技术。 处理系统包括具有非反相输入，反相输入和输出的运算放大器。 处理系统还包括耦合在输出端和反相输入端之间以形成反馈路径的第一电容器和第二电容器。 处理系统还包括耦合到第二电容器的第一开关。 第一开关具有第一状态和第二状态，其中第一状态将第二电容器耦合到第一电容器，并且第二状态将第二电容器耦合到测量电路。 处理系统还包括耦合到测量电路并被配置为基于由第二电容器接收的电荷量在反相输入端确定电容测量的确定模块。

公开(公告)号：US20140021966A1

公开(公告)日：2014-01-23

申请号：US13843129

申请日：2013-03-15

Applicant: SYNAPTICS INCORPORATED

Inventor： Farzaneh SHAHROKHI ,  Adam SCHWARTZ ,  Shahrooz SHAHPARNIA ,  Joseph Kurth REYNOLDS ,  Tracy Scott DATTALO

IPC: G01R27/26

CPC classification number: G01R27/2605 ,  G01D5/24 ,  G06F3/0416 ,  G06F3/044

Abstract: A differential amplifier has an output and differential first and second inputs. A switch disposed between a sensor electrode and the second input is opened to initiate a reset phase where the sensor electrode and the differential amplifier are decoupled. A feedback capacitance disposed between the second input and the output is reset to a first level of charge. The switch is closed to initiate a measurement phase where the second input and sensor electrode are coupled. In the measurement phase: charge is balanced between the sensor electrode and the feedback capacitance such that a sensor electrode voltage equals a voltage of the first input equals a voltage of the second input, and the sensor electrode is charged; and the differential amplifier is utilized to integrate charge on the sensor electrode, such that an absolute capacitance corresponding to a coupling between the sensor electrode and an input object is measured.

Abstract translation: 差分放大器具有输出和差分第一和第二输入。 设置在传感器电极和第二输入之间的开关被打开以启动复位阶段，其中传感器电极和差分放大器被去耦合。 设置在第二输入和输出之间的反馈电容被复位到第一电荷水平。 开关闭合以启动第二输入和传感器电极耦合的测量阶段。 在测量阶段：在传感器电极和反馈电容之间平衡电荷，使得传感器电极电压等于第一输入的电压等于第二输入的电压，并且传感器电极被充电; 并且差分放大器用于在传感器电极上集成电荷，使得测量对应于传感器电极和输入对象之间的耦合的绝对电容。

公开(公告)号：US20210041988A1

公开(公告)日：2021-02-11

申请号：US16533482

申请日：2019-08-06

Applicant: SYNAPTICS INCORPORATED

Inventor： Nickolas V. FOTOPOULOS ,  Katayoun GOUDARZI ,  Tracy Scott DATTALO ,  Joseph Kurth REYNOLDS ,  Jonathan LOSH ,  Renuka Vidyut SHENOY ,  Derek SOLVEN

IPC: G06F3/044 ,  G06F3/041

Abstract: A system and method for capacitive sensing comprise acquiring first capacitive sensor data and second capacitive sensor data from a plurality of sensor electrodes, and determining positional information from one or more input objects based on the first capacitive sensor data and the second capacitive sensor data. The plurality of sensor electrodes are driven with transcapacitive sensing signals for capacitive sensing during one or more transcapacitive sensing blocks to acquire the first sensor data. Each of the transcapacitive sensing signals is based on a respective one of a plurality of codes. Further, the plurality of sensor electrodes are operated for absolute capacitive sensing during one or more absolute capacitive sensing blocks to acquire the second capacitive sensor data.

公开(公告)号：US20160041654A1

公开(公告)日：2016-02-11

申请号：US14918496

申请日：2015-10-20

Applicant: SYNAPTICS INCORPORATED

Inventor： Mihai BULEA ,  Derek SOLVEN ,  Joseph Kurth REYNOLDS ,  David HOCH ,  Tracy Scott DATTALO

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/041 ,  G06F2203/04112

Abstract: Embodiments of the invention generally provide an input device that includes a plurality of sensing elements that are interconnected in desired way to acquire positional information of an input object, so that the acquired positional information can be used by other system components to control a display or other useful system components. One or more of the embodiments described herein, utilizes one or more of the techniques and sensor electrode array configuration disclosed herein to reduce or minimize the number of traces and/or electrodes required to sense the position of an input object within a sensing region of the input device.

公开(公告)号：US20150261377A1

公开(公告)日：2015-09-17

申请号：US14527688

申请日：2014-10-29

Applicant: Synaptics Incorporated

Inventor： Joseph Kurth REYNOLDS ,  Tracy Scott DATTALO ,  David HOCH

IPC: G06F3/041 ,  G06F3/044 ,  G01R1/20 ,  G01R29/08 ,  G01B7/02

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04107

Abstract: A processing system comprises a sensor module and a determination module. The sensor module comprises sensing circuitry coupled to sensor electrodes of a sensor electrode pattern. The sensor module is configured to: drive a modulated signal onto a first sensor electrode of the sensor electrode pattern; receive first resulting signals from the first sensor electrode; and receive second resulting signals from a second sensor electrode of the sensor electrode pattern. The second resulting signals comprise effects corresponding to the modulated signal, and the first resulting signals and the second resulting signals are simultaneously received. The determination module configured to determine a change in capacitive coupling between an input object and the first sensor electrode based on the first resulting signals and a change in capacitive coupling between the first and second sensor electrodes based on the second resulting signals.

Abstract translation: 处理系统包括传感器模块和确定模块。 传感器模块包括耦合到传感器电极图案的传感器电极的感测电路。 传感器模块被配置为：将调制信号驱动到传感器电极图案的第一传感器电极上; 从第一传感器电极接收第一结果信号; 并从传感器电极图案的第二传感器电极接收第二结果信号。 第二结果信号包括与调制信号相对应的效应，并且同时接收第一结果信号和第二结果信号。 所述确定模块被配置为基于所述第一结果信号和基于所述第二结果信号来确定所述第一和第二传感器电极之间的电容耦合的变化来确定输入对象和所述第一传感器电极之间的电容耦合的变化。

公开(公告)号：US20140267127A1

公开(公告)日：2014-09-18

申请号：US13797493

申请日：2013-03-12

Applicant: SYNAPTICS INCORPORATED

Inventor： Derek SOLVEN ,  Tracy Scott DATTALO ,  Tyler MOORE

IPC: G06F3/041

CPC classification number: G06F3/0416 ,  G06F3/0412 ,  G06F3/044

Abstract: A single-layer capacitive sensor comprises a user input region and a border region proximate to and outside of the user input region. The user input region includes a plurality of transmitter electrodes that are disposed within the user input region. The user input region also comprises a plurality of receiver electrodes disposed in a common stackup layer with the plurality of transmitter electrodes within the user input region such that the transmitter electrodes and the receiver electrodes make no crossings of one another in the common stackup layer or in any other layer within the user input region. The border region comprises a plurality of routing traces extending from the border region into the user input region to couple with the transmitter electrodes and the receiver electrodes. The border region also comprises a plurality of transmission traces disposed entirely within the border region.

Abstract translation: 单层电容传感器包括用户输入区域和接近用户输入区域和外部的边界区域。 用户输入区域包括设置在用户输入区域内的多个发射器电极。 用户输入区域还包括多个接收器电极，其设置在与用户输入区域内的多个发射器电极相同的共同叠层中，使得发射器电极和接收器电极在公共叠层中不互相交叉 用户输入区域内的任何其他层。 边界区域包括从边界区域延伸到用户输入区域中以与发射器电极和接收器电极耦合的多个路由迹线。 边界区域还包括完全设置在边界区域内的多个传输迹线。