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公开(公告)号：US11946742B2
公开(公告)日：2024-04-02
申请号：US17374560
申请日：2021-07-13
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Tae-gil Kang , Sung Kyu Kim , Sa Hyang Hong , Chang Woo Lee
CPC classification number: G01B7/30 , G01B7/32 , G06F3/0446 , G09G3/035 , G06F2203/04102 , G09G2340/0407 , G09G2340/045 , G09G2340/0464
Abstract: In an example, a display device includes a rollable display including a display side and an opposite non-display side. The rollable display includes a conductive material with a pattern disposed on the non-display side. The device includes a housing configured to house the rollable display and configured to roll in and roll out the rollable display along a first direction, and a capacitive sensor including a transmitter and a receiver electrode disposed within the housing and configured to sense the pattern.
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公开(公告)号：US11798967B2
公开(公告)日：2023-10-24
申请号：US17495047
申请日：2021-10-06
Inventor： How Yang Lim , Olivier Zanellato
IPC: H01L27/146 , H01L23/31 , H01L23/00 , H04N23/55
CPC classification number: H01L27/14627 , H01L23/31 , H01L24/14 , H04N23/55
Abstract: An integrated circuit package includes a support substrate having a front side and a back side and an optical integrated circuit die having a back side mounted to the front side of the support substrate and having a front side with an optical sensing circuit. A glass optical element die has a back side mounted to the front side of the optical integrated circuit die over the optical sensing circuit. The mounting of the glass optical element die is made by a layer of transparent adhesive which extends to the cover the optical sensing circuit and a portion of the front side of the optical integrated circuit die peripherally surrounding the optical sensing circuit. An encapsulation material body encapsulates the glass optical element die and the optical integrated circuit die.
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公开(公告)号：US20230163633A1
公开(公告)日：2023-05-25
申请号：US18158462
申请日：2023-01-23
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：US11588344B2
公开(公告)日：2023-02-21
申请号：US17374840
申请日：2021-07-13
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：US11581754B2
公开(公告)日：2023-02-14
申请号：US17403060
申请日：2021-08-16
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Yannick Guedon
Abstract: A method of wirelessly transmitting power includes: causing a power transmission circuit to transmit, to a master power reception circuit, a portion of power it is capable of transmitting; adjusting operation of a slave power reception unit until a first rectified voltage produced by the master power reception circuit and a second rectified voltage produced by the slave power reception unit are equal; causing the power transmission circuit to transmit additional power to the slave power reception unit, resulting in the first and second rectified voltages being unequal; and adjusting operation of the slave power reception unit until the first and second rectified voltages are again equal. A dummy load is connected to the slave power reception unit prior to causing the power transmission circuit to transmit the additional power, and is disconnected once the first and second rectified voltages are equal.
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Patent Agency Ranking
公开(公告)号：US11573663B1
公开(公告)日：2023-02-07
申请号：US17648646
申请日：2022-01-21
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Chan Hyuck Yun , Min Sang Kim
Abstract: A method for operating an electronic device includes rotating a first portion of a flexible touchscreen with respect to a second portion of the flexible touchscreen around a folding axis; detecting, self-capacitances sensed in a folding area of the flexible touchscreen using a self-sensing scan, where a first side of the folding area is on the first portion of the flexible touchscreen and a second side of the folding area is on the second portion of the flexible touchscreen, and the first side and the second side are separated by a folding axis; determining, a current strength sensed by the flexible touchscreen in the folding area based on the self-capacitances in the folding area; and determining, a folding angle of the first portion of the flexible touchscreen with the second portion of the flexible touchscreen around the folding axis based on the current strength in the folding area.
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公开(公告)号：US20220353119A1
公开(公告)日：2022-11-03
申请号：US17245890
申请日：2021-04-30
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Ade Putra , Kusuma Adi NINGRAT , Mythreyi Nagarajan
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：US11486914B2
公开(公告)日：2022-11-01
申请号：US17492210
申请日：2021-10-01
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Yannick Guedon , Baris Volkan Yildirim , Teerasak Lee
Abstract: A circuit includes a tank capacitor coupled between first and second nodes, and a sense resistor having a first terminal coupled to the first node and a second terminal coupled to a regulator input. A switching circuit has first and second inputs coupled to the first and second terminals of the sense resistor. A gain stage has first and second inputs capacitively coupled to first and second outputs of the switching circuit. An analog-to-digital converter receives the output of the gain stage, and receives first and second differential voltages. A reference voltage generator has a temperature independent current source coupled to source current to a reference resistor, the first differential reference voltage being formed across the reference resistor. The reference resistor and sense resistor are located sufficiently close to one another on a single common substrate such that they remain at substantially a same temperature.
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公开(公告)号：US11422663B1
公开(公告)日：2022-08-23
申请号：US17332357
申请日：2021-05-27
Applicant: STMicroelectronics Asia Pacific Pte Ltd.
Inventor： Kien Beng Tan , Eng Jye Ng , Hon Siong Ng , Tong Tee Tan
Abstract: In an example, a method of sensing on a touchscreen including a plurality of touch sensors arranged in rows and columns on the touchscreen is described. The method includes detecting a passive touch on the touchscreen and a positon of an active stylus; determining a plurality of locations across the touchscreen corresponding to the passive touch and a positon of the active stylus, where each of the plurality of locations corresponds to a location of one of the plurality of touch sensors. The method includes transmitting a first uplink signal to a first group of the plurality of locations including a first fraction of the plurality of locations; and transmitting a second uplink signal to a second group of the plurality of locations including a second fraction of the plurality of locations, the first uplink signal being different from the second uplink signal.
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公开(公告)号：US20220264082A1
公开(公告)日：2022-08-18
申请号：US17736504
申请日：2022-05-04
Applicant: STMicroelectronics Asia Pacific Pte Ltd
Inventor： Hong Chean CHOO , Lookah CHUA , Wai Yin HNIN
Abstract: An electronic device includes a pixel array having a plurality of rows with active imaging pixels, and at least one row with test pixels. Each of the test pixels includes a test voltage generation circuit generating a test voltage, a switching circuit receiving the test voltage and an image pixel output signal and passing the test voltage as output when in a test mode, a comparison circuit receiving the output from the switching circuit and an analog to digital conversion signal and asserting a counter reset signal when the output from the switching circuit and the analog to digital conversion signal are equal in voltage, and a counter beginning counting at a beginning of each test cycle within the test mode, stopping counting upon assertion of the counter reset signal, and outputting its count upon stopping counting. The count is proportional to the test voltage when in the test mode.
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