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1. 发明公开

US20240086013A1 TOUCH-SENSITIVE APPARATUS AND METHOD 审中-公开
公开(公告)号：US20240086013A1
公开(公告)日：2024-03-14
申请号：US18261541
申请日：2022-01-10
申请人： TouchNetix Limited
发明人： Steinar MYREN , Stephen William ROBERTS , Trond Jarle PEDERSEN
IPC分类号： G06F3/041
CPC分类号： G06F3/04182 , G06F3/04166 , G06F3/0446
摘要： Described is a touch-sensitive apparatus, including: a plurality of electrodes comprising at least a first electrode and a second electrode; drive circuitry configured to generate a drive signal for driving one or more of the plurality of electrodes; a differential output element comprising a first input and a second input configured to couple to each of the first electrode and second electrode and configured to output a signal indicative of the differential between signals input to the differential output element at the first input and the second input; switching circuitry configured to couple the first electrode to either of the first input or second input of the differential output element and to couple the second electrode to either of the first input or second input of the differential output element; and processing circuitry.

2. 发明公开

US20230333701A1 DISPLACEMENT SENSING APPARATUS 审中-公开
公开(公告)号：US20230333701A1
公开(公告)日：2023-10-19
申请号：US18044281
申请日：2021-08-24
申请人： TouchNetix Limited
发明人： Robert MONEY
IPC分类号： G06F3/044
CPC分类号： G06F3/0447 , G06F3/0443
摘要： Disclosed a sensing apparatus having a frame element and a displaceable element mounted relative to the frame element. The sensing apparatus comprises a plurality of displacement sensor elements each configured to provide a displacement sensor output signal indicative of a displacement between the frame element and the displaceable element, wherein the plurality of displacement sensor elements are arranged at different spatial locations relative to the displaceable element and configured to provide a displacement sensor output signal indicative of a displacement between the frame element and the displaceable element at the respective spatial location. The sensing apparatus further comprises processing circuitry configured to obtain the displacement sensor output signals from the plurality of displacement sensor elements and determine whether displacement of the displaceable element is a valid displacement by comparing at least the ratio between the displacement sensor output signals to one or more expected ratios vance.

3. 发明申请

US20210199465A1 DISPLACEMENT SENSING 有权
公开(公告)号：US20210199465A1
公开(公告)日：2021-07-01
申请号：US17058477
申请日：2019-05-28
申请人： TouchNetix Limited
发明人： Stephen William Roberts
IPC分类号： G01D3/036 , G01D5/241 , G06F3/041
摘要： A sensing apparatus comprising a displacement sensor element arranged to sense a separation between a first element (2) and a second element (3) movably mounted with respect to the first element; an acceleration sensor element configured to sense an acceleration associated with the first element; displacement measurement circuitry (4A) configured to make a measurement indicative of separation on the basis of the sensed separation; acceleration measurement circuitry (4C) configured to make a measurement of acceleration on the basis of the sensed acceleration; and a processing element (4D) configured to output a signal to indicate there is determined to be a change in the separation of the second element relative to the first element on the basis of the measurement indicative of separation and the measurement of acceleration.

4. 发明授权

US10605628B2 Displacement sensing apparatus and methods 有权
公开(公告)号：US10605628B2
公开(公告)日：2020-03-31
申请号：US15542456
申请日：2016-01-04
申请人： TouchNetix Limited
发明人： Peter Timothy Sleeman , Stephen William Roberts
IPC分类号： G01D5/241
摘要： A displacement sensor for sensing a change in separation between a first element and a second element along a displacement direction. The sensor comprises a reference electrode mounted to the second element in the form of a conductive trace on a surface of the second element facing the first element. A deformable electrode, e.g. a conductive elastomeric material, is arranged between the first element and the second element so as to overlie the reference electrode. The deformable electrode has a contact surface facing the reference electrode and insulated therefrom. At least part of the contact surface is inclined relative to an opposing surface of the reference electrode such that when the deformable electrode is compressed along the displacement direction there is a reduction in volume between the contact surface and the opposing surface of the reference electrode, thereby changing the capacitive coupling between them. The sensor further comprises a controller element configured to measure a characteristic of the capacitive coupling between the reference electrode and the deformable electrode and to determine if a change in separation between the first element and the second element has occurred be determining if there is a change in the characteristic of capacitive coupling between the reference electrode and the deformable electrode.

5. 发明申请

US20170219330A1 DISPLACEMENT SENSING APPARATUS AND METHODS 审中-公开
公开(公告)号：US20170219330A1
公开(公告)日：2017-08-03
申请号：US15500363
申请日：2015-07-23
申请人： TouchNetix Limited
发明人： Peter Timothy Sleeman , Stephen William Roberts
IPC分类号： G01B7/14 , H03K17/975
CPC分类号： G01B7/14 , G01D5/2417 , G06F3/044 , G06F2203/04105 , H03K17/975 , H03K2217/9651
摘要： A displacement sensor comprising: a reference electrode; and a displacement element movably mounted relative to the reference electrode and comprising a substrate having first and second opposing surfaces with a first electrode arranged around a peripheral part of the first surface and a second electrode arranged around a peripheral part of the second surface, and wherein the reference electrode on the same side of the substrate as the second electrode and offset therefrom; and a controller element configured to measure a capacitance characteristic of the second electrode at different times and to determine whether there has been a displacement of the displacement element relative to the reference electrode based on whether there has been a change in the capacitance characteristic of the second electrode.

6. 发明授权

US10963090B2 Force and position determination based on capacitive sensing 有权
公开(公告)号：US10963090B2
公开(公告)日：2021-03-30
申请号：US16339619
申请日：2017-10-02
申请人： TouchNetix Limited
发明人： Peter Timothy Sleeman , Luben Hristov
IPC分类号： G06F3/041 , G06F3/044
摘要： A sensing apparatus including a frame; a capacitive sensor comprising a sensing surface moveably mounted relative to the frame and configured to measure, as a function of time, characteristics of capacitive couplings between the sensing surface and a plurality of objects at different locations over the sensing surface; a displacement sensor configured to detect when there is a displacement of the sensing surface relative to the frame due to a displacement load applied to the sensing surface by one of the objects; and a processing element configured to identify which of the objects applied the displacement load based on changes in the measured characteristics of the capacitive couplings for the respective objects during a time period around when the displacement of the sensing surface is detected.

7. 发明申请

US20210081073A1 CAPACITIVE SENSING 有权
公开(公告)号：US20210081073A1
公开(公告)日：2021-03-18
申请号：US16960944
申请日：2018-11-20
申请人： TouchNetix Limited
发明人： Robert MONEY , Peter Timothy SLEEMAN
IPC分类号： G06F3/041 , G01D5/241 , G06F3/044
摘要： A displacement sensor comprising: a first electrode and a second electrode displaceably mounted relative to the first electrode; capacitance measurement circuitry configured to make measurements of a capacitance associated with the first and second electrodes and to generate analogue capacitance measurement signals in response thereto; compensation circuitry configured to generate a compensated analogue capacitance measurement signal by reducing a magnitude of a current analogue capacitance measurement signal by an amount indicated by a compensation signal derived from at least one previous analogue capacitance measurement signal; and processing circuitry configured to digitise the compensated analogue capacitance measurement signal and to determine if there is a displacement of the second electrode relative to the first electrode based on the compensated analogue capacitance measurement signal.

8. 发明申请

US20190391689A1 SENSING APPARATUS 审中-公开
公开(公告)号：US20190391689A1
公开(公告)日：2019-12-26
申请号：US16478927
申请日：2017-09-28
申请人： TouchNetix Limited
发明人： Luben HRISTOV
IPC分类号： G06F3/044 , G06F3/041
摘要： A sensing apparatus for determining relative amounts of force applied to a sensing surface at a plurality of locations, the sensing apparatus comprising: a capacitive sensor element comprising the sensing surface, wherein the capacitive sensor element is moveably mounted; a displacement sensor element for detecting changes in the displacement of the capacitive sensor element; capacitive sensing circuitry coupled to the capacitive sensor element and configured to determine locations for a plurality of objects capacitively coupled to the sensing surface; displacement sensing circuitry coupled to the displacement sensor element and configured to determine changes in the displacement of the capacitive sensor element at a plurality of different locations; and processing circuitry configured to determine a location at which a net displacement load acts on the sensing surface from the determined changes in displacement of the sensor element, and to establish relative amounts of the net displacement load on the determined locations.

9. 发明申请

US20180274952A1 DISPLACEMENT SENSING APPARATUS AND METHODS 审中-公开
公开(公告)号：US20180274952A1
公开(公告)日：2018-09-27
申请号：US15542456
申请日：2016-01-04
申请人： TouchNetix Limited
发明人： Peter Timothy Sleeman , Stephen William
IPC分类号： G01D5/241
CPC分类号： G01D5/2415 , G01D5/241
摘要： A displacement sensor for sensing a change in separation between a first element and a second element along a displacement direction. The sensor comprises a reference electrode mounted to the second element in the form of a conductive trace on a surface of the second element facing the first element. A deformable electrode, e.g. a conductive elastomeric material, is arranged between the first element and the second element so as to overlie the reference electrode. The deformable electrode has a contact surface facing the reference electrode and insulated therefrom. At least part of the contact surface is inclined relative to an opposing surface of the reference electrode such that when the deformable electrode is compressed along the displacement direction there is a reduction in volume between the contact surface and the opposing surface of the reference electrode, thereby changing the capacitive coupling between them. The sensor further comprises a controller element configured to measure a characteristic of the capacitive coupling between the reference electrode and the deformable electrode and to determine if a change in separation between the first element and the second element has occurred be determining if there is a change in the characteristic of capacitive coupling between the reference electrode and the deformable electrode.

10. 发明授权

US09588614B2 Touch sensors and touch sensing methods 有权
标题翻译：触摸传感器和触摸感应方式
公开(公告)号：US09588614B2
公开(公告)日：2017-03-07
申请号：US14433044
申请日：2013-10-08
申请人： TouchNetix Limited
发明人： Stephen William Roberts , Peter Timothy Sleeman , Christopher Kyle Ard
IPC分类号： G06F3/044 , G06F3/041
CPC分类号： G06F3/0416 , G06F3/044 , G06F2203/04111
摘要： A touch-sensitive position sensor is disclosed. The sensor comprises an array of first electrodes and an array of second electrodes arranged in a pattern to provide a sensing surface, wherein at least some of the first electrodes and the second electrodes are arranged to follow paths which are non-linear within the sensing surface such that there are ends of the first electrodes and ends of the second electrodes which meet a common edge of the sensing surface. A controller is coupled to respective ones of the first electrodes and the second electrodes and arranged to determine a reported position for an object adjacent the sensing surface by measuring changes in an electrical parameter e.g. capacitance or resistance, associated with the first electrodes and the second electrodes which is caused by the presence of the object. The controller is further operable to provide an indication of the reported position in a first coordinate system defined relative to the first electrodes and the second electrodes, the sensor further comprises a processor arranged to receive the indication of reported position from the controller in the first coordinate system and to transform the reported position to an output position in a second coordinate system, wherein the transform is based on the non-linear pattern of electrodes. Thus, a sensor having electrodes which are distorted so as to meet a common edge may be provided for ease of connectability, with the distortion been accounted for through the transform performed by the processor.
摘要翻译：公开了一种触敏位置传感器。该传感器包括第一电极阵列和以图案排列以提供感测表面的第二电极阵列，其中第一电极和第二电极中的至少一些被布置成沿着感测表面内非线性的路径使得第一电极的端部和第二电极的端部满足感测表面的公共边缘。控制器耦合到相应的第一电极和第二电极，并且被布置成通过测量电参数的变化来确定与感测表面相邻的物体的报告位置。电容或电阻，与第一电极和第二电极相关联，这是由于物体的存在引起的。所述控制器还可操作以提供在相对于所述第一电极和所述第二电极限定的第一坐标系中的报告位置的指示，所述传感器还包括处理器，其布置成在所述第一坐标中接收来自所述控制器的报告位置的指示并且将报告的位置变换为第二坐标系中的输出位置，其中所述变换基于所述非线性电极图案。因此，为了便于连接性，可以提供具有失真以满足公共边缘的电极的传感器，通过由处理器执行的变换来考虑失真。

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