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公开(公告)号：US11875002B2
公开(公告)日：2024-01-16
申请号：US18073362
申请日：2022-12-01
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , David Johnson , Hrishikesh Panchawagh
CPC classification number: G06F3/044 , G06F3/047 , G06F3/0416
Abstract: Methods, systems, and devices for detection of a protective cover film on a capacitive touch screen are described. A device may include a capacitive touch screen having a surface and a sensor grid underneath the surface having a set of conductive columns and a set of conductive rows. The device may measure a mutual capacitance between a subset of conductive columns or a subset of conductive rows associated with a sensor grid, and compare the measured mutual capacitance between the subset of conductive columns or the subset of conductive rows to a baseline mutual capacitance associated with the set of conductive columns and the set of conductive rows. According to the comparison, the device may determine a presence of a protective layer in contact with the surface of the capacitive touch screen, and adjust an operating characteristic of the sensor grid.
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公开(公告)号：US20220229504A1
公开(公告)日：2022-07-21
申请号：US17710615
申请日：2022-03-31
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , David Johnson , Hrishikesh Panchawagh
Abstract: Methods, systems, and devices for detection of a protective cover film on a capacitive touch screen are described. A device may include a capacitive touch screen having a surface and a sensor grid underneath the surface having a set of conductive columns and a set of conductive rows. The device may measure a mutual capacitance between a subset of conductive columns or a subset of conductive rows associated with a sensor grid, and compare the measured mutual capacitance between the subset of conductive columns or the subset of conductive rows to a baseline mutual capacitance associated with the set of conductive columns and the set of conductive rows. According to the comparison, the device may determine a presence of a protective layer in contact with the surface of the capacitive touch screen, and adjust an operating characteristic of the sensor grid.
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公开(公告)号：US20200341568A1
公开(公告)日：2020-10-29
申请号：US16899174
申请日：2020-06-11
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , David Johnson , Hrishikesh Panchawagh
Abstract: Methods, systems, and devices for detection of a protective cover film on a capacitive touch screen are described. A device may include a capacitive touch screen having a surface and a sensor grid underneath the surface having a set of conductive columns and a set of conductive rows. The device may measure a mutual capacitance between a subset of conductive columns or a subset of conductive rows associated with a sensor grid, and compare the measured mutual capacitance between the subset of conductive columns or the subset of conductive rows to a baseline mutual capacitance associated with the set of conductive columns and the set of conductive rows. According to the comparison, the device may determine a presence of a protective layer in contact with the surface of the capacitive touch screen, and adjust an operating characteristic of the sensor grid.
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公开(公告)号：US10698546B1
公开(公告)日：2020-06-30
申请号：US16228037
申请日：2018-12-20
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , David Johnson , Hrishikesh Panchawagh
Abstract: Methods, systems, and devices for detection of a protective cover film on a capacitive touch screen are described. A device may include a capacitive touch screen having a surface and a sensor grid underneath the surface having a set of conductive columns and a set of conductive rows. The device may measure a mutual capacitance between a subset of conductive columns or a subset of conductive rows associated with a sensor grid, and compare the measured mutual capacitance between the subset of conductive columns or the subset of conductive rows to a baseline mutual capacitance associated with the set of conductive columns and the set of conductive rows. According to the comparison, the device may determine a presence of a protective layer in contact with the surface of the capacitive touch screen, and adjust an operating characteristic of the sensor grid.
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公开(公告)号：US10254884B2
公开(公告)日：2019-04-09
申请号：US15357753
申请日：2016-11-21
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , Kevin Johnson , David Johnson , Rizwan Muhammad Khan Afridi , Adithya Naresh , Ronald Scott Lee , Mark Bisbee
Abstract: Certain aspects of the present disclosure generally relate to a touch panel. The touch panel may include a cover layer, of a plurality of layers, configured to receive a touch force applied to the touch panel. The touch panel may include a force determination set of layers, of the plurality of layers, to determine a magnitude of the touch force applied to the touch panel. The force determination set of layers may include a piezoelectric layer with a set of force determination pixels. The set of force determination pixels may be arranged in a matrix to address the set of force determination pixels. A force determination pixel may be configured to generate a charge for determining a location of the touch force applied to the touch panel and a magnitude of the touch force applied to the touch panel.
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Patent Agency Ranking
公开(公告)号：US11294516B2
公开(公告)日：2022-04-05
申请号：US17202843
申请日：2021-03-16
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , David Johnson , Hrishikesh Panchawagh
Abstract: Methods, systems, and devices for detection of a protective cover film on a capacitive touch screen are described. A device may include a capacitive touch screen having a surface and a sensor grid underneath the surface having a set of conductive columns and a set of conductive rows. The device may measure a mutual capacitance between a subset of conductive columns or a subset of conductive rows associated with a sensor grid, and compare the measured mutual capacitance between the subset of conductive columns or the subset of conductive rows to a baseline mutual capacitance associated with the set of conductive columns and the set of conductive rows. According to the comparison, the device may determine a presence of a protective layer in contact with the surface of the capacitive touch screen, and adjust an operating characteristic of the sensor grid.
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公开(公告)号：US20210200350A1
公开(公告)日：2021-07-01
申请号：US17202843
申请日：2021-03-16
Applicant: QUALCOMM Incorporated
Abstract: Methods, systems, and devices for detection of a protective cover film on a capacitive touch screen are described. A device may include a capacitive touch screen having a surface and a sensor grid underneath the surface having a set of conductive columns and a set of conductive rows. The device may measure a mutual capacitance between a subset of conductive columns or a subset of conductive rows associated with a sensor grid, and compare the measured mutual capacitance between the subset of conductive columns or the subset of conductive rows to a baseline mutual capacitance associated with the set of conductive columns and the set of conductive rows. According to the comparison, the device may determine a presence of a protective layer in contact with the surface of the capacitive touch screen, and adjust an operating characteristic of the sensor grid.
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公开(公告)号：US20180143728A1
公开(公告)日：2018-05-24
申请号：US15357753
申请日：2016-11-21
Applicant: QUALCOMM Incorporated
Inventor： Richard Stacy Withers , Kevin Johnson , David Johnson , Rizwan Muhammad Khan Afridi , Adithya Naresh , Ronald Scott Lee , Mark Bisbee
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/0414 , G06F3/044 , G06F2203/04105 , G06F2203/04112
Abstract: Certain aspects of the present disclosure generally relate to a touch panel. The touch panel may include a cover layer, of a plurality of layers, configured to receive a touch force applied to the touch panel. The touch panel may include a force determination set of layers, of the plurality of layers, to determine a magnitude of the touch force applied to the touch panel. The force determination set of layers may include a piezoelectric layer with a set of force determination pixels. The set of force determination pixels may be arranged in a matrix to address the set of force determination pixels. A force determination pixel may be configured to generate a charge for determining a location of the touch force applied to the touch panel and a magnitude of the touch force applied to the touch panel.
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公开(公告)号：US20170091513A1
公开(公告)日：2017-03-30
申请号：US15378897
申请日：2016-12-14
Applicant: QUALCOMM Incorporated
Inventor： Richard S. Withers , Ronald B. Koo , Stephen C. Gerber , Arkadii V. Samoilov , David Johnson
CPC classification number: G06K9/0002 , G01R27/2605 , G02F1/13338 , G06F3/017 , G06K9/00053 , H01L27/323 , H01L51/5237
Abstract: A fingerprint sensor is described that includes a thin protective cover layer on a sensor glass layer with receive circuitry between the thin protective cover layer and the sensor glass layer. In an implementation, a fingerprint sensor assembly includes a controller; a metal layer configured to be electrically coupled to the controller; a transmit layer electrically connected to the metal layer and the controller; a sensor glass layer, where the transmit layer is disposed on a first side of the sensor glass layer, and where the transmit layer is electrically coupled to the controller; a receive layer disposed on a second side of the sensor glass layer, where the receive layer is electrically coupled to the controller; and a protective cover layer disposed on the receive layer.
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公开(公告)号：US09558390B2
公开(公告)日：2017-01-31
申请号：US14496073
申请日：2014-09-25
Applicant: QUALCOMM Incorporated
Inventor： Richard S. Withers , Ronald B. Koo , Stephen C. Gerber , Arkadii V. Samoilov , David Johnson
CPC classification number: G06K9/0002 , G01R27/2605 , G02F1/13338 , G06F3/017 , G06K9/00053 , H01L27/323 , H01L51/5237
Abstract: A fingerprint sensor is described that includes a thin protective cover layer on a sensor glass layer with receive circuitry between the thin protective cover layer and the sensor glass layer. In an implementation, a fingerprint sensor assembly includes a controller; a metal layer configured to be electrically coupled to the controller; a transmit layer electrically connected to the metal layer and the controller; a sensor glass layer including at least one through-glass via, where the transmit layer is disposed on a first side of the sensor glass layer, and where the transmit layer is electrically coupled to the at least one through-glass via; a receive layer disposed on a second side of the sensor glass layer, where the receive layer is electrically coupled to the at least one through-glass via; and a protective cover layer disposed on the receive layer.
Abstract translation: 描述了一种指纹传感器，其在传感器玻璃层上包括薄的保护性覆盖层，在薄的保护覆盖层和传感器玻璃层之间具有接收电路。 在实现中，指纹传感器组件包括控制器; 被配置为电耦合到所述控制器的金属层; 电连接到所述金属层和所述控制器的发射层; 传感器玻璃层，其包括至少一个透明玻璃通孔，其中所述透射层设置在所述传感器玻璃层的第一侧上，并且所述透射层电耦合到所述至少一个透玻璃通孔; 接收层，设置在所述传感器玻璃层的第二侧上，其中所述接收层电耦合到所述至少一个透玻璃通孔; 以及设置在接收层上的保护覆盖层。
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