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公开(公告)号：US11966537B2
公开(公告)日：2024-04-23
申请号：US18171500
申请日：2023-02-20
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Sang soo Lee , Chan Hyuck Yun
IPC: G06F3/041 , G06F3/044 , G09G3/3208
CPC classification number: G06F3/04166 , G09G3/3208 , G06F3/0446 , G09G2310/0202 , G09G2310/08 , G09G2320/0247
Abstract: A method for operating an electronic device, including: determining that a touchscreen is in a low frequency display (LFD) mode, determining whether a self-sensing scan was performed in a previous frame of a plurality of frames; after determining, a self-sensing scan was performed in the previous frame, determining a current duration of time corresponding to a current frame based on a previous duration of time corresponding to the previous frame, the previous frame being a frame immediately preceding the current frame; determining, whether the current duration of time is greater than the previous duration of time; and after determining that the current duration is greater than the previous duration, performing a self-sensing scan after the current duration of time, the current duration of time being measured from a beginning of the current frame, the current duration of time having a duration less than a duration of the current frame.
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公开(公告)号：US20240045547A1
公开(公告)日：2024-02-08
申请号：US18490475
申请日：2023-10-19
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： MooKyung Kang , Sang Hoon Jeon
CPC classification number: G06F3/0418 , G06F3/0446
Abstract: A method includes: displaying, an image on a display by sequentially displaying a plurality of frames of the image, the plurality of frames including a first frame and second frame; performing a first noise sampling scan at a plurality of frequencies at a first time location within a first frame; determining a first frequency from the plurality of frequencies with the lowest noise; performing a first mutual sensing scan at the first frequency; performing, a second noise sampling scan at the plurality of frequencies at a second time location within a second frame of the plurality of frames, the second time location being a different frame location than the first time location; determining a second frequency from the plurality of frequencies with the lowest noise, the second frequency being different from the first frequency; and performing, a second mutual sensing scan at the second frequency.
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公开(公告)号：US11829558B1
公开(公告)日：2023-11-28
申请号：US17961045
申请日：2022-10-06
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Min Sang Kim , Chan Hyuck Yun , Sang Hoon Jeon , Jeonghee Son , Yun Sang On
CPC classification number: G06F3/0418 , H04M1/0266 , G06F3/0446 , H04M2201/38 , H04M2250/22
Abstract: In an embodiment, a method includes performing a calibration of a first touch cell of a touch screen, where performing the calibration includes: receiving a first code associated with the first touch cell; receiving a second code associated with the first touch cell; determining whether there is an indication of a touch of the touch screen based on the first and second codes; generating a raw code based on the first or second codes; receiving a third code associated with the first touch cell; determining whether the third code matches the raw code; and in response to determining that there is no indication of a touch of the touch screen based on the first and second codes, and that the third code matches the raw code, updating a calibration code associated with the first touch cell based on the raw code or the third code.
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公开(公告)号：US20230379200A1
公开(公告)日：2023-11-23
申请号：US18364308
申请日：2023-08-02
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Ade Putra , Kusuma Adi Ningrat , Mythreyi Nagarajan
CPC classification number: H04L27/22 , G06F3/04166 , G06F3/04162 , H03M1/124
Abstract: A device includes an analog to digital converter configured to convert voltages into a digital signal by sampling the voltages at a fixed sampling time; a first multiplier configured to multiply the digital signal with in-phase coefficients, the in-phase coefficients generated to produce a demodulated in-phase signal at a demodulation signal frequency; a first adder configured accumulate the demodulated in-phase signal to output in-phase magnitude values; a second multiplier configured to multiply the digital signal with quadrature coefficients, the quadrature coefficients generated to produce a demodulated quadrature signal at the demodulation signal frequency; and a second adder configured to accumulate the demodulated quadrature signal to output quadrature magnitude values.
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公开(公告)号：US11816288B2
公开(公告)日：2023-11-14
申请号：US17659617
申请日：2022-04-18
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： MooKyung Kang , Sang Hoon Jeon
CPC classification number: G06F3/0418 , G06F3/0446
Abstract: A method includes: displaying, an image on a display by sequentially displaying a plurality of frames of the image, the plurality of frames including a first frame and second frame; performing a first noise sampling scan at a plurality of frequencies at a first time location within a first frame; determining a first frequency from the plurality of frequencies with the lowest noise; performing a first mutual sensing scan at the first frequency; performing, a second noise sampling scan at the plurality of frequencies at a second time location within a second frame of the plurality of frames, the second time location being a different frame location than the first time location; determining a second frequency from the plurality of frequencies with the lowest noise, the second frequency being different from the first frequency; and performing, a second mutual sensing scan at the second frequency.
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Patent Agency Ranking
公开(公告)号：US20230244899A1
公开(公告)日：2023-08-03
申请号：US17587645
申请日：2022-01-28
Applicant: STMICROELECTRONICS ASIA PACIFIC PTE LTD
Inventor： Jaehyun KWAK , Kyoung Min CHO
IPC: G06K19/077 , G06K19/073 , H01H1/12
CPC classification number: G06K19/07749 , G06K19/07345 , H01H1/12 , H01H2231/05
Abstract: The present disclosure is directed to a contactless card including an actuation security structure that is actuated to provide authorization in accessing identifying information on an integrated circuit within the contactless card. In at least one embodiment, the actuation security structure includes a pair of conductive layers and a pair of electrodes. Ends of the pair of conductive layers overlap respective ones of the pair of electrodes. The ends of the pair of conductive layers are at and in a first elastically deformable region and the respective ones of the pair of electrodes are at and in a second elastically deformable region. An owner of the contactless card may provide authorization to access the identification information on the contactless card by applying force to both the first and second elastically deformable regions inward resulting in the ends of the conductive layers moving into electrical communication with the pair of electrodes.
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公开(公告)号：US20230099911A1
公开(公告)日：2023-03-30
申请号：US17490437
申请日：2021-09-30
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Chee Weng CHEONG , Kien Beng TAN
IPC: H02J50/10 , H02M7/219 , H02M3/156 , H02M1/00 , G01R19/165 , H03K17/687 , H02J7/04 , H02J50/90
Abstract: A wireless power receiver includes a rectifier with first and second inputs coupled to first and second terminals of a receiver coil, and having a first output coupled to ground and a second output at which a rectified voltage is produced. A first switch is coupled between the second input and ground, and is controlled by a first gate voltage generated at a first node. A second switch is coupled between the first node and ground, and is controlled by a second gate voltage. The first gate voltage closes the first switch to couple the second input to ground when the rectified voltage is less than a threshold voltage, boosting the rectified voltage. The second gate voltage closes the second switch to cause the second gate voltage to be pulled to ground when the rectified voltage is greater than the threshold voltage, limiting the boosting of the rectified voltage.
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公开(公告)号：US11609658B1
公开(公告)日：2023-03-21
申请号：US17679623
申请日：2022-02-24
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Sang soo Lee , Chan Hyuck Yun
IPC: G06F3/041 , G09G3/3208 , G06F3/044
Abstract: A method for operating an electronic device, including: determining that a touchscreen is in a low frequency display (LFD) mode, determining whether a self-sensing scan was performed in a previous frame of a plurality of frames; after determining, a self-sensing scan was performed in the previous frame, determining a current duration of time corresponding to a current frame based on a previous duration of time corresponding to the previous frame, the previous frame being a frame immediately preceding the current frame; determining, whether the current duration of time is greater than the previous duration of time; and after determining that the current duration is greater than the previous duration, performing a self-sensing scan after the current duration of time, the current duration of time being measured from a beginning of the current frame, the current duration of time having a duration less than a duration of the current frame.
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公开(公告)号：US11495995B2
公开(公告)日：2022-11-08
申请号：US17004689
申请日：2020-08-27
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Supriya Raveendra Hegde , Chee Weng Cheong
Abstract: A wireless power receiving circuit includes a transistor based rectifier receiving an AC input voltage, and control logic receiving an overvoltage signal. The control logic generates control signals for controlling turn on of transistors within the transistor based rectifier based upon the overvoltage signal so as to cause the transistor based rectifier to produce a rectified output voltage from the AC input voltage. A comparator compares the rectified output voltage to a reference voltage and asserts the overvoltage signal if the rectified output voltage is greater than the reference voltage. In response to assertion of the overvoltage signal, the control logic asserts the control signals to simultaneously turn on all transistors of the transistor based rectifier.
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公开(公告)号：US11415405B2
公开(公告)日：2022-08-16
申请号：US16858110
申请日：2020-04-24
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Sa Hyang Hong , Jun Hwan Kang , Yun Sang On
Abstract: Disclosed herein is a strain gauge including a substrate, with a first Wheatstone bridge arrangement of resistors disposed on a first surface of the substrate, and a second Wheatstone bridge arrangement of resistors disposed remotely from the first Wheatstone bridge arrangement of resistors. The resistors of the first Wheatstone bridge arrangement are equal in resistance to one another, while the resistors of the second Wheatstone bridge arrangement are unequal in resistance to one another and unequal to those of the first Wheatstone bridge arrangement. The first Wheatstone bridge arrangement of resistors are electrically connected in parallel with the second Wheatstone bridge arrangement of resistors such that each resistor of the first Wheatstone bridge arrangement is electrically connected in parallel with a different resistor of the second Wheatstone bridge arrangement.
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