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公开(公告)号：US10120478B2
公开(公告)日：2018-11-06
申请号：US15032038
申请日：2014-10-28
Applicant: Apple Inc.
Inventor： Sinan Filiz , Brian Q. Huppi , Christopher J. Butler , Martin P. Grunthaner , Shahrooz Shahparnia , Sunggu Kang , Kai Wang
Abstract: Systems for detecting an amount and/or location of a force applied to a device using a piezoelectric film are provided. One example system can include a transparent piezoelectric film for generating an electric charge in response to a deformation of the film. Electrodes positioned on opposite surfaces of the piezoelectric film can be used to detect the generated electric charge and determine an amount and/or location of force applied to the film based on the generated electric charge. In another embodiment, the system can include a capacitive touch sensor for determining a location of a touch event on the device.
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公开(公告)号：US10061444B2
公开(公告)日：2018-08-28
申请号：US14067870
申请日：2013-10-30
Applicant: Apple Inc.
Inventor： Shahrooz Shahparnia , Christoph H. Krah
CPC classification number: G06F3/044 , G06F1/3262 , G06F3/0418
Abstract: Self capacitance touch circuits to cancel the effects of parasitic capacitance in a touch sensitive device are disclosed. One circuit can generate a parasitic capacitance cancelation signal that can be injected into touch sensing circuitry to cancel the parasitic capacitance. Another circuit can adjust the phase and magnitude of the parasitic capacitance cancelation signal based on characteristics of channels in the touch sensing circuitry so as to fine tune the parasitic capacitance cancelations. Another circuit can drive a guard plate and touch panel electrodes so as to cancel the parasitic capacitances between the panel and the plate and between the electrodes.
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公开(公告)号：US10048775B2
公开(公告)日：2018-08-14
申请号：US13831318
申请日：2013-03-14
Applicant: APPLE INC.
Inventor： Shahrooz Shahparnia , John Greer Elias
IPC: G06F3/044 , G06F3/0354 , G06F3/041
Abstract: A touch input device configured to detect stylus signals generated by an external stylus is provided. The touch input device includes a plurality of stylus signal detectors that can receive the stylus signal and estimate the start and end time of the stylus signal in order to facilitate windowed demodulation of signal. The touch input device also includes circuitry to determine which of the plurality of detectors is most likely to have received the stylus signal and based on that determination can demodulate the signal and extract data embedded within the stylus signal.
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公开(公告)号：US09939935B2
公开(公告)日：2018-04-10
申请号：US14333382
申请日：2014-07-16
Applicant: Apple Inc.
Inventor： Shahrooz Shahparnia
IPC: G06F3/041 , G06F3/0354 , G06F3/044 , G09G3/36
CPC classification number: G06F3/041 , G06F3/03545 , G06F3/0416 , G06F3/044 , G09G3/3648
Abstract: A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.
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公开(公告)号：US09465456B2
公开(公告)日：2016-10-11
申请号：US14283105
申请日：2014-05-20
Applicant: Apple Inc.
Inventor： Vivek Pant , Shahrooz Shahparnia , John Greer Elias
IPC: G06F3/0354 , G06F3/0488 , G06F3/041 , G06F3/044 , G06F3/038
CPC classification number: G06F3/03545 , G06F3/038 , G06F3/0418 , G06F3/044 , G06F3/0488
Abstract: Algorithms can be used to reduce stylus tip wobble for a stylus translating on a surface over and between electrodes of a touch sensor panel. In some examples, a first position estimate can be calculated using a first position calculation method and a second position estimate can be calculated using a second position calculation method. The position of the stylus can be determined based on a weighted combination of the first and second position estimates. In some examples, the first position estimate can be calculated using an even-point centroid of signal contributions from an even number of electrodes of a touch sensor panel and the second position estimate can be calculated using an odd-point centroid of signal contributions from an odd number of electrodes. In some examples, the weighting can be assigned based on a ratio of the two largest amplitude signals and based on a ratio of the second and third largest amplitude signals.
Abstract translation: 可以使用算法来减少在触摸传感器面板的电极之间和之间的表面上平移的触笔的触笔尖摆动。 在一些示例中，可以使用第一位置计算方法来计算第一位置估计，并且可以使用第二位置计算方法来计算第二位置估计。 可以基于第一和第二位置估计的加权组合来确定触控笔的位置。 在一些示例中，可以使用来自触摸传感器面板的偶数个电极的信号贡献的偶数中心来计算第一位置估计，并且可以使用来自第一位置估计的信号贡献的奇点中心来计算第二位置估计 奇数电极。 在一些示例中，可以基于两个最大幅度信号的比率并且基于第二和第三最大振幅信号的比率来分配加权。
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Patent Agency Ranking
公开(公告)号：US20160147319A1
公开(公告)日：2016-05-26
申请号：US14550784
申请日：2014-11-21
Applicant: Apple Inc.
Inventor： Manu Agarwal , Shahrooz Shahparnia , Vivek Pant
IPC: G06F3/0354 , G06F3/041
CPC classification number: G06F3/044 , G06F3/0418 , G06F2203/04107
Abstract: A touch sensor may overlap a display. A transparent shield layer that is grounded around its edges may be interposed between the display and the touch sensor to help prevent noise from display data lines from reaching the touch sensor. The data lines may extend along a first dimension. The touch sensor may have first elongated electrodes that extend along the first dimension and second elongated electrodes that extend along a second dimension that is perpendicular to the first dimension. The second electrodes may be interposed between the first electrodes and the data lines. Pen present electrodes may be used to gather pen present data associated with a stylus on the touch sensor. Adjacent noise sensors may collect noise data that is removed from the pen present data.
Abstract translation: 触摸传感器可能与显示器重叠。 围绕其边缘接地的透明屏蔽层可以介于显示器和触摸传感器之间，以帮助防止显示数据线的噪声到达触摸传感器。 数据线可以沿着第一维度延伸。 触摸传感器可以具有沿着第一尺寸延伸的第一细长电极和沿垂直于第一尺寸的第二尺寸延伸的第二细长电极。 第二电极可以介于第一电极和数据线之间。 笔当前电极可用于收集与触摸传感器上的触控笔相关联的笔存在数据。 相邻的噪声传感器可以收集从笔当前数据中去除的噪声数据。
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37.发明申请公开(公告)号：US20150338932A1
公开(公告)日：2015-11-26
申请号：US14283105
申请日：2014-05-20
Applicant: Apple Inc.
Inventor： Vivek Pant , Shahrooz Shahparnia , John Greer Elias
IPC: G06F3/0354 , G06F3/038 , G06F3/041 , G06F3/044
CPC classification number: G06F3/03545 , G06F3/038 , G06F3/0418 , G06F3/044 , G06F3/0488
Abstract: An algorithm for reducing stylus tip wobble for a stylus translating on a surface over and between electrodes of a touch sensor panel is disclosed. In some examples, a first position estimate can be calculated using a first position calculation method and a second position estimate can be calculated using a second position calculation method. The position of the stylus can be determined based on a weighted combination of the first and second position estimates. In some examples, the first position estimate can be calculated using an even-point centroid of signal contributions from an even number of electrodes of a touch sensor panel and the second position estimate can be calculated using an odd-point centroid of signal contributions from an odd number of electrodes. In some examples, the weighting can be assigned based on a ratio of the two largest amplitude signals and based on a ratio of the second and third largest amplitude signals.
Abstract translation: 公开了一种用于减少在触摸传感器面板的电极之间的表面上平移的触控笔的触笔尖摆动的算法。 在一些示例中，可以使用第一位置计算方法来计算第一位置估计，并且可以使用第二位置计算方法来计算第二位置估计。 可以基于第一和第二位置估计的加权组合来确定触控笔的位置。 在一些示例中，可以使用来自触摸传感器面板的偶数个电极的信号贡献的偶数中心来计算第一位置估计，并且可以使用来自第一位置估计的信号贡献的奇点中心来计算第二位置估计 奇数个电极。 在一些示例中，可以基于两个最大幅度信号的比率并且基于第二和第三最大振幅信号的比率来分配加权。
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公开(公告)号：US20150049044A1
公开(公告)日：2015-02-19
申请号：US14082074
申请日：2013-11-15
Applicant: Apple Inc.
Inventor： Marduke YOUSEFPOR , Shahrooz Shahparnia
IPC: G06F3/044
CPC classification number: G06F3/0418 , G06F3/0416 , G06F3/044 , G06F2203/04101 , G06F2203/04107 , G06F2203/04111
Abstract: A touch panel electrode structure for user grounding correction in a touch panel is discloses. The electrode structure can include an array of electrodes for sensing a touch at the panel, and multiple jumpers for selectively coupling groups of the electrodes together to form electrode rows and columns that cross each other. In some examples, the array can have a linear configuration and can form the rows and columns by coupling diagonally adjacent electrodes using the jumpers in a zigzag pattern, or the array can have a diamond configuration and can form the rows and columns by coupling linearly adjacent electrodes using the jumpers in a linear pattern. In various examples, each electrode can have a solid structure with a square shape, a reduced area with an outer electrode and a physically separate center electrode, a hollow center, or a solid structure with a hexagonal shape.
Abstract translation: 公开了一种用于触摸面板中的用户接地校正的触摸面板电极结构。 电极结构可以包括用于感测面板上的触摸的电极阵列，以及用于选择性地将电极组合在一起以形成彼此交叉的电极行和列的多个跳线。 在一些示例中，阵列可以具有线性配置并且可以通过以锯齿形图案使用跳线耦合对角线相邻的电极来形成行和列，或者阵列可以具有金刚石构造，并且可以通过将线性相邻 使用线性图案的跳线的电极。 在各种实施例中，每个电极可以具有方形形状的实心结构，具有外部电极的减小的面积和物理上分离的中心电极，中空中心或具有六边形形状的固体结构。
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公开(公告)号：US12289534B2
公开(公告)日：2025-04-29
申请号：US18615982
申请日：2024-03-25
Applicant: Apple Inc.
Inventor： Angelo M Alaimo , Shahrooz Shahparnia , Paul V. Johnson
Abstract: Various embodiments include a light source module with one or more light emitters and one or more light sensors that share an aperture via which light passes. One of the light sensors may measure illuminance received through the aperture (not illuminance from the light emitters) and send a signal indicating a measurement of the illuminance. The light source module may be integrated into a portable computing device having a controller. The controller may include logic to perform one or more device operations based on the measurement of illuminance, such as, but not limited to, controlling a device display brightness and/or controlling an auto exposure feature of the device camera. Calibration parameters for interpreting the signal may be determined via a calibration process.
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公开(公告)号：US11409353B2
公开(公告)日：2022-08-09
申请号：US16112141
申请日：2018-08-24
Applicant: Apple Inc.
Inventor： Shahrooz Shahparnia , Christoph H. Krah
IPC: G06F1/3234 , G06F3/041 , G06F3/044
Abstract: Self capacitance touch circuits to cancel the effects of parasitic capacitance in a touch sensitive device are disclosed. One circuit can generate a parasitic capacitance cancelation signal that can be injected into touch sensing circuitry to cancel the parasitic capacitance. Another circuit can adjust the phase and magnitude of the parasitic capacitance cancelation signal based on characteristics of channels in the touch sensing circuitry so as to fine tune the parasitic capacitance cancelations. Another circuit can drive a guard plate and touch panel electrodes so as to cancel the parasitic capacitances between the panel and the plate and between the electrodes.
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