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公开(公告)号：US20210333085A1
公开(公告)日：2021-10-28
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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公开(公告)号：US11140750B2
公开(公告)日：2021-10-05
申请号：US16233926
申请日：2018-12-27
Inventor： Fuchao Wang , Olivier Leneel , Ravi Shankar
Abstract: An integrated circuit is provided having an active circuit. A heating element is adjacent to the active circuit and configured to heat the active circuit. A temperature sensor is also adjacent to the active circuit and configured to measure a temperature of the active circuit. A temperature controller is coupled to the active circuit and configured to receive a temperature signal from the temperature sensor. The temperature controller operates the heating element to heat the active circuit to maintain the temperature of the active circuit in a selected temperature range.
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公开(公告)号：US11095146B2
公开(公告)日：2021-08-17
申请号：US16413283
申请日：2019-05-15
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Yannick Guedon
Abstract: An over-voltage protection circuit and methods of operation are provided. In one embodiment, a method includes monitoring a voltage at an output of a rectifier, a voltage at an output of a voltage regulator, or a combination thereof. The method further includes determining the over-voltage condition based on the monitoring; and in response to determining the over-voltage condition, regulating the voltage at the output of the rectifier in accordance with a voltage difference between the voltage at the output of the rectifier and the voltage at the output of the voltage regulator.
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公开(公告)号：US20210135912A1
公开(公告)日：2021-05-06
申请号：US16669068
申请日：2019-10-30
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Yannick Guedon
Abstract: A power transmitter includes: a first switch coupled between a first node and a reference voltage node; a second switch configured to be coupled between a power supply and the first node; a coil and a capacitor coupled in series between the first node and the reference voltage node; a first sample-and-hold (S&H) circuit having an input coupled to the first node; and a timing control circuit configured to generate a first control signal, a second control signal, and a third control signal that have a same frequency, where the first control signal is configured to turn ON and OFF the first switch alternately, the second control signal is configured to turn ON and OFF the second switch alternately, and where the third control signal determines a sampling time of the first S&H circuit and has a first pre-determined delay from a first edge of the first control signal.
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公开(公告)号：US10942602B1
公开(公告)日：2021-03-09
申请号：US16669169
申请日：2019-10-30
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Manivannan Ponnarasu , Ade Putra
Abstract: In one embodiment, a method for operating an electronic device includes determining that a touch sensitive display is being contacted. The touch sensitive display includes a plurality of mutual-sensing capacitive sensor regions and an array of self-sensing capacitive sensor regions. The plurality of mutual-sensing capacitive sensor regions is arranged in rows and columns on the touch sensitive display. The array of self-sensing capacitive sensor regions is arranged in a row or a column on the touch sensitive display. The method may include obtaining mutual sensing touch values for each of the rows and the columns and self-sensing touch values for the row or the column. Based on the mutual sensing touch values and self-sensing touch values, the method includes determining whether a contacted region of the touch sensitive display is an impression of a single finger, multiple fingers, a single thumb, or multiple thumbs.
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Patent Agency Ranking
186.发明授权公开(公告)号：US10939094B2
公开(公告)日：2021-03-02
申请号：US16809926
申请日：2020-03-05
Inventor： Lookah Chua , Jansen Reyes Duey , Tarek Lule , Mathieu Thivin
IPC: H04N17/00 , H04N5/369 , H04N5/3745 , B60W30/09 , G08G1/16
Abstract: An electronic device includes a voltage divider producing different reference voltages. Dummy pixels each are formed by a transfer gate transistor having a first conduction terminal coupled to a floating diffusion node, a second conduction terminal, and a control node coupled to a first gate signal line, a transmission gate coupled between one of the plurality of taps and the second conduction terminal of the transfer gate transistor, a floating diffusion capacitor coupled between the floating diffusion node and ground, a transistor having a first conduction terminal coupled to the floating diffusion node, a second conduction terminal, and a control terminal coupled to a second gate signal line, and a reset transistor having a first conduction terminal coupled to the upper reference voltage, a second conduction terminal coupled to the second conduction terminal of the transistor, and a control terminal coupled to a reset signal line.
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公开(公告)号：US20200285384A1
公开(公告)日：2020-09-10
申请号：US16788417
申请日：2020-02-12
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Kusuma Adi NINGRAT , Ade PUTRA
Abstract: A touch screen controller includes driving circuitry coupled to a conductive line through a resistance and drives that conductive line with a driving signal passed through the resistance at a drive frequency. Sensing circuitry is coupled to that conductive line and senses a voltage at that conductive line, the voltage being a function of a capacitance seen by that conductive line. Analog to digital conversion circuitry is coupled to the sensing circuitry and samples the sensed voltage at a sampling frequency to produce samples. Processing circuitry is coupled to the analog to digital conversion circuitry and directly calculates a tangent of a phase shift of the voltage due to the resistance and the capacitance from the samples, and determines a self touch value for that conductive line as a function of the tangent of the phase shift of the voltage.
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188.发明授权公开(公告)号：US10725574B2
公开(公告)日：2020-07-28
申请号：US16220500
申请日：2018-12-14
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Cam Chung La , Kien Beng Tan
Abstract: A device includes a touch and pressure sensitive screen having touch pressure sensors and a controller. The controller acquires touch pressure data from the plurality of touch pressure sensors. For each touch pressure sensor, the controller determines whether the touch pressure data from that touch pressure sensor is indicative of abnormal operation of that touch pressure sensor. Where no abnormal operation is indicated, the controller sums the touch pressure data from each of the touch pressure sensors to produce a touch pressure output. Where abnormal operation is indicated, the controller sums the touch pressure data from each of the touch pressure sensors and multiply the sum by a correction factor to produce the touch pressure output.
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189.发明授权公开(公告)号：US10712883B2
公开(公告)日：2020-07-14
申请号：US15893207
申请日：2018-02-09
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Manivannan Ponnarasu
Abstract: Disclosed herein is a touch screen controller operable with a touch screen. The touch screen controller includes input circuitry to receive touch data from the touch screen, and processing circuitry. The processing circuitry acquires mutual capacitance touch strength values from the touch screen, determines when the mutual capacitance touch strength values define a pre-validated donut touch pattern, and reads self capacitance touch strength values for lines that are contained within bounds of the pre-validated donut touch pattern. If the self capacitance touch strength values for lines contained within bounds of the pre-validate donut touch pattern contain a singular peak value, the processing circuitry validates the pre-validated donut touch pattern as representing a single touch.
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190.发明申请公开(公告)号：US20200174597A1
公开(公告)日：2020-06-04
申请号：US16675950
申请日：2019-11-06
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Abhishek SINGH , Hugo GICQUEL
Abstract: Disclosed herein is a circuit including a driver circuit applying a received drive signal to a capacitive sensing line of a capacitive touch panel as a boosted drive signal, the driver circuit powered by a boosted supply voltage. A charge pump circuit receives an input supply voltage and output the boosted supply voltage, the charge pump circuit including a voltage sensing circuit to sense the boosted supply voltage and a comparison circuit to compare the sensed boosted supply voltage to a threshold and produce a comparison signal. A control circuit determines a ratio of a pulse width of the comparison signal to the drive signal, and tunes operation of the charge pump circuit to drive the ratio to match a performance threshold.
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