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公开(公告)号：US20240072845A1
公开(公告)日：2024-02-29
申请号：US18504820
申请日：2023-11-08
发明人： Sungwoo LEE , Hyoungseok OH , Minkyu KWON , Sungkyu CHO
CPC分类号： H04B3/56 , H04B3/02 , H04B2203/5425 , H04B2203/5483 , H04B2203/5491
摘要： A first mobile device including a connection terminal configured to electrically connect to a second mobile device, a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance, processing circuitry configured to determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and control the impedance of the variable impedance device according to the determined PLC mode, and a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode.
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公开(公告)号：US20230080119A1
公开(公告)日：2023-03-16
申请号：US17990647
申请日：2022-11-18
发明人： Sungkyu CHO , Minkyu KWON , Taesun YOU , Sungwoo LEE , Taejin JEONG , Daewoong CHO
IPC分类号： H02J7/00
摘要： A charging management chip includes a switching charging circuit and a direct charging circuit. The switching charging circuit receives charging power, and passes through the charging power to a first node, and charges a battery according to a switching charging method and controls generation of a system voltage provided to an electronic system. The direct charging circuit receives the charging power applied to the first node via an input node, and charges the battery according to a direct charging method by providing the charging power to an output node based on a switching circuit therein. The switching charging circuit charges the battery through a first charging path including an inductor arranged outside the charging management chip, and the direct charging circuit charges the battery through a second charging path through which the charging power transferred to the output node is directly provided to the battery.
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公开(公告)号：US20240202700A1
公开(公告)日：2024-06-20
申请号：US18287364
申请日：2022-04-19
发明人： Jonghoe KOO , Sungkyu CHO , Sehee HAN
CPC分类号： G06Q20/3278 , G06Q20/325 , G06Q20/38215 , G06Q20/3829
摘要： The present disclosure provides a UWB-based safe proximity payment method. A method of a first electronic device of the present disclosure may comprise the steps of: broadcasting a UWB initiation message including certificate information of the first electronic device; receiving, from at least one second electronic device, a UWB response message including identification information of a payment application included in the second electronic device and certificate information of the payment application; and determining a priority of the at least one second electronic device on the basis of the UWB response message.
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公开(公告)号：US20220060041A1
公开(公告)日：2022-02-24
申请号：US17315834
申请日：2021-05-10
发明人： Sangun BANG , Duseung OH , Dongjo KIM , Dongjoon KIM , Jinsoo LEE , Sungkyu CHO , Woonhyung HEO
摘要： A device for detecting an attachment and detachment of a portable device according to example embodiments of the present disclosure may include a first terminal and a second terminal configured to be connected to the portable device; a pull-up circuit connected to the first terminal; a charging circuit configured to generate an output voltage for charging the portable device; and a controller configured to control the charging circuit to generate the output voltage when a voltage of the first terminal drops in a detachment state, and determine whether to transition to an attachment state based on an output current output through the first terminal during a first period in which the output voltage is generated.
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公开(公告)号：US20240305984A1
公开(公告)日：2024-09-12
申请号：US18272706
申请日：2022-01-18
发明人： Sungkyu CHO , Sehee HAN , Jieun KEUM
IPC分类号： H04W12/069 , G01S13/02 , G06F21/53 , H04W12/0431
CPC分类号： H04W12/069 , G01S13/0209 , G06F21/53 , H04W12/0431
摘要： A method for UWB secure ranging is disclosed. An electronic device method according to one embodiment of the present disclosure may comprise the operations of: transmitting, to a secure component, a request for setting a ranging data set for secure ranging; and transmitting, to the secure component, a request for transmitting the ranging data set to a UWB subsystem. Here, the ranging data set can be transmitted to the UWB subsystem from the secure component by using a secure channel set between the secure component and the UWB subsystem through a framework.
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公开(公告)号：US20240086890A1
公开(公告)日：2024-03-14
申请号：US18276549
申请日：2022-02-10
发明人： Jihye LEE , Sungkyu CHO , Kangjin YOON
CPC分类号： G06Q20/325 , G06Q20/3674 , G06Q20/3829 , G06Q2220/00
摘要： The present disclosure discloses a method for a UWB-based payment service. A method of a first electronic device using UWB communication, of the present disclosure, may comprise the operations of: receiving, from a second electronic device, an initiation message for UWB ranging, which includes a random number generated by means of the second electronic device, transmitting, to the second electronic device, a response message to the initiation message, which includes identification information about the first electronic device encrypted using a session key generated on the basis of the random number, receiving, from the second electronic device, a transaction information message including request type information indicating the type of request associated with a payment, and transmitting, to the second electronic device, a payment information message including response data based on the request type information.
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公开(公告)号：US20230394463A1
公开(公告)日：2023-12-07
申请号：US18034241
申请日：2021-10-29
发明人： Sungkyu CHO , Kangjin YOON , Sehee HAN , Youngsun RYU
CPC分类号： G06Q20/325 , G06Q20/3825 , G06Q20/401 , G06Q2220/00
摘要： Disclosed in the present disclosure are a method and device for providing a payment service using a UWB communication. The method of the present disclosure includes the following operations transmitting an initiation message for initiating a UWB ranging, receiving, from at least one user terminal, a response message for the initiation message, transmitting a transaction information message for payment to a first user device selected on the basis of the response message, and receiving a payment information message corresponding to the transaction information message from the first user device.
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公开(公告)号：US20220369103A1
公开(公告)日：2022-11-17
申请号：US17746316
申请日：2022-05-17
发明人： Sehee HAN , Sungkyu CHO
IPC分类号： H04W12/03 , H04L9/32 , H04B1/7163
摘要： Disclosed is a method for ultra-wide band (UWB) security ranging and a UWB device configured to perform secure ranging. The method includes obtaining, from a UWB sub-system of the UWB device, first encryption data including a symmetric key encrypted with a public key of a secure application of the UWB device; transferring the first encryption data to the secure application; obtaining, from the secure application, second encryption data including a ranging data set (RDS) encrypted with the symmetric key; and transferring the second encryption data to the UWB sub-system. In this case, the RDS may include a ranging session key configured to secure a UWB ranging session, and the secure application may be included in a trusted execution environment area.
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公开(公告)号：US20220271796A1
公开(公告)日：2022-08-25
申请号：US17739342
申请日：2022-05-09
发明人： Sungwoo LEE , Hyoungseok OH , Minkyu KWON , Sungkyu CHO
摘要： A first mobile device including a connection terminal configured to electrically connect to a second mobile device, a variable impedance device connected to the connection terminal, the variable impedance device configured to vary an impedance, processing circuitry configured to determine a power line communication (PLC) mode between the first mobile device and the second mobile device to be one of a low-speed PLC mode or a high-speed PLC mode, and control the impedance of the variable impedance device according to the determined PLC mode, and a PLC modem configured to receive power from the second mobile device or communicate data with the second mobile device based on the determined PLC mode.
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10.发明申请公开(公告)号：US20220140621A1
公开(公告)日：2022-05-05
申请号：US17389791
申请日：2021-07-30
发明人： Minkyu KWON , Sungkyu CHO
IPC分类号： H02J7/00
摘要： A charging integrated circuit (IC) includes: a connection circuit configured to selectively connect a first battery and a second battery to each other in series and in parallel; a first charger configured to charge the first battery and the second battery connected to each other in parallel in a first charging mode; and a second charger configured to charge the first battery and the second battery connected to each other in series in a second charging mode. The connection circuit may include: a first regulating circuit connected to the first battery in series and configured to regulate a first balancing current flowing to the first battery; and a second regulating circuit connected to the second battery in series and configured to regulate a second balancing current flowing to the second battery.
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