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公开(公告)号：US12119735B2
公开(公告)日：2024-10-15
申请号：US17680666
申请日：2022-02-25
发明人： Yannick Guedon , Teerasak Lee
IPC分类号： H02M1/00
CPC分类号： H02M1/0009
摘要： Disclosed herein is a wireless power reception system that utilizes a switched capacitor DC-DC voltage converter to charge a load. Current sensing circuits described herein enable the measurement of the input current to the switched capacitor DC-DC voltage converter while being relatively insensitive to temperature variation. Voltage/current sensing circuits described herein enable the selective measurement of load voltage, high side load current, and low side load current. One of the current sensing circuits may be used together with one of the voltage/current sensing circuits in a single device, or the current sensing circuits and voltage/current sensing circuits may be used separately in different devices.
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公开(公告)号：US12014005B2
公开(公告)日：2024-06-18
申请号：US18171582
申请日：2023-02-20
发明人： Sa Hyang Hong , Sang Hoon Jeon , Yun Sang On , Min Sang Kim
CPC分类号： G06F3/04166 , G06F3/0442 , G06F3/0446 , G06F1/1652 , G06F2203/04102 , G09F9/301
摘要： A method for operating an electronic device, the method including: displacing a rollable touchscreen to a first position along a first direction, a first side of the rollable touchscreen being mounted in a housing, the rollable touchscreen being configured to be rolled into or unrolled out of the housing along the first direction, detecting an active electrode at a first location on the rollable touchscreen, the active electrode being mounted in the housing, and determining the first position of the rollable touchscreen based on the first location, the first positing being indicative of a fractional amount of the rollable touchscreen outside the housing.
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公开(公告)号：US11983594B2
公开(公告)日：2024-05-14
申请号：US17587645
申请日：2022-01-28
发明人： Jaehyun Kwak , Kyoung Min Cho
IPC分类号： G06K19/077 , G06K19/073 , H01H1/12
CPC分类号： G06K19/07749 , G06K19/07345 , H01H1/12 , H01H2231/05
摘要： 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：US11946742B2
公开(公告)日：2024-04-02
申请号：US17374560
申请日：2021-07-13
发明人： Tae-gil Kang , Sung Kyu Kim , Sa Hyang Hong , Chang Woo Lee
CPC分类号： G01B7/30 , G01B7/32 , G06F3/0446 , G09G3/035 , G06F2203/04102 , G09G2340/0407 , G09G2340/045 , G09G2340/0464
摘要： 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
发明人： How Yang Lim , Olivier Zanellato
IPC分类号： H01L27/146 , H01L23/31 , H01L23/00 , H04N23/55
CPC分类号： H01L27/14627 , H01L23/31 , H01L24/14 , H04N23/55
摘要： 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
发明人： Yannick Guedon
摘要： 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
发明人： Yannick Guedon
摘要： 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
发明人： Yannick Guedon
摘要： 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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公开(公告)号：US11573663B1
公开(公告)日：2023-02-07
申请号：US17648646
申请日：2022-01-21
发明人： Chan Hyuck Yun , Min Sang Kim
摘要： 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
摘要： 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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