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1. 发明授权

US10558305B2 Touch sensors 有权
公开(公告)号：US10558305B2
公开(公告)日：2020-02-11
申请号：US15503061
申请日：2015-08-13
申请人： TouchNetix Limited
发明人： Stephen William Roberts
IPC分类号： G06F3/044
摘要： A touch sensor comprises a sensor element for sensing the position of an object over a display screen in a first direction and in a second direction. The sensor element comprises a substrate having an electrode pattern disposed thereon to define an array of sensor nodes. The electrode pattern comprises a plurality of conductors arranged to follow portion of a network of lines extending generally in the first direction, wherein each of the lines follows a zigzag (saw-tooth) pattern comprising an alternating series of first line segments arranged at a first angle to the first direction and second line segments arranged at a second angle to the first direction, and wherein respective ones of the first line segments in each line are co-linear with respective ones of the first line segments in an adjacent line. Such a configuration leads to a reduced visibility of the conductors overlying the display screen.

2. 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.

3. 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.

4. 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.

5. 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.

6. 发明授权

US11561111B2 Displacement sensing 有权
公开(公告)号：US11561111B2
公开(公告)日：2023-01-24
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 , H03K17/96
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.

7. 发明授权

US10684732B2 Capacitive sensor apparatus and methods 有权
公开(公告)号：US10684732B2
公开(公告)日：2020-06-16
申请号：US15768046
申请日：2016-10-07
申请人： TouchNetix Limited
发明人： Stephen William Roberts , Peter Timothy Sleeman
IPC分类号： G06F3/044 , G06F3/041
摘要： The touch panel module comprises a touch panel sensor element and a touch panel controller for measuring changes in capacitance associated with one or more sensor electrodes comprising the touch panel sensor element and generating corresponding touch panel output signalling is communicated to the host controller. The capacitance measurement circuit comprises a capacitance measurement channel coupled to a power supply line for the touch panel module, e.g., a ground for the touch panel module, and is configured to measure a capacitance associated with the touch panel module circuitry coupled to this power supply line and to generate corresponding capacitance measurement circuit output signalling for communication to the host controller. The touch panel power supply at the touch panel module is galvanically isolated from the capacitance measurement circuit power supply at the capacitance measurement circuit. Thus, the touch panel module may operate in a broadly conventional manner, whilst the capacitance measurement circuit simultaneously, or in a time multiplexed manner, measures a capacitance associated with the overall circuitry of the touch panel module, thereby providing a relatively sensitive proximity sensor.

8. 发明申请

US20170228070A1 TOUCH SENSORS 审中-公开
公开(公告)号：US20170228070A1
公开(公告)日：2017-08-10
申请号：US15503061
申请日：2015-08-13
申请人： TouchNetix Limited
发明人： Stephen William Roberts
IPC分类号： G06F3/044
摘要： A touch sensor comprises a sensor element for sensing the position of an object over a display screen in a first direction and in a second direction. The sensor element comprises a substrate having an electrode pattern disposed thereon to define an array of sensor nodes. The electrode pattern comprises a plurality of conductors arranged to follow potions of a network of lines extending generally in the first direction, wherein each of the lines follows a zigzag (saw-tooth) pattern comprising an alternating series of first line segments arranged at a first angle to the first direction and second line segments arranged at a second angle to the first direction, and wherein respective ones of the first line segments in each line are co-linear with respective ones of the first line segments in an adjacent line. Such a configuration leads to a reduced visibility of the conductors overlying the display screen.

9. 发明申请

US20150028894A1 TOUCH SENSOR FOR NON-UNIFORM PANELS 有权
标题翻译：非均匀面板触摸传感器
公开(公告)号：US20150028894A1
公开(公告)日：2015-01-29
申请号：US14378471
申请日：2013-02-11
申请人： TouchNetix Limited
发明人： Peter Sleeman
IPC分类号： G01B7/00 , G01B7/14 , G06F3/044
CPC分类号： G01B7/003 , G01B7/14 , G06F3/044
摘要： A two-dimensional capacitive touch sensor having a cover layer of varying thickness arranged on top of its electrode structure. An array of sensing nodes is formed between edge portions of the receiver electrodes and adjacent portions of the transmitter electrodes. To compensate for the varying thickness of the cover layer, the length of the edge portions per sensing node is varied to equalize node sensitivity across the sensor and thus suppress the systematic variation in node sensitivity which would otherwise arise as a result of the varying thickness of the cover layer.
摘要翻译：具有布置在其电极结构的顶部上的具有不同厚度的覆盖层的二维电容式触摸传感器。在接收器电极的边缘部分和发射器电极的相邻部分之间形成感测节点阵列。为了补偿覆盖层的变化的厚度，每个感测节点的边缘部分的长度被改变以均衡跨传感器的节点灵敏度，并且因此抑制节点灵敏度的系统变化，否则由于变化的厚度覆盖层。

10. 发明申请

US20220236868A1 TOUCH-SENSITIVE APPARATUS AND METHOD 有权
公开(公告)号：US20220236868A1
公开(公告)日：2022-07-28
申请号：US17615672
申请日：2020-06-08
申请人： TouchNetix Limited
发明人： Peter Timothy SLEEMAN , Stephen William ROBERTS
IPC分类号： G06F3/041 , G06F3/044 , G06F3/047
摘要： A touch-sensitive apparatus, the apparatus comprising: a touch-sensitive element comprising an array of electrodes having a first electrode and a second electrode, the second electrode spatially intersecting the first electrode at an intersection point; and measurement circuitry configured to: measure the mutual capacitance at the intersection point of the first and second electrodes; measure the self-capacitance of the first electrode, and measure the self-capacitance of the second electrode; and processing circuitry configured to: determine the presence of a touch on the touch-sensitive element on the basis of a comparison of the measured mutual capacitance at the intersection point to a first threshold and on the basis of a combination of the measured self-capacitance of the first electrode and the measured self-capacitance of the second electrode being greater than or equal to a second threshold.

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