公开(公告)号：US20200265418A1

公开(公告)日：2020-08-20

申请号：US16794557

申请日：2020-02-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youna LEE ,  Jongkeun CHOI ,  Sungjin PARK ,  Wooseok JANG ,  Seongmin JE ,  Seungmin HA

IPC: G06Q20/36 ,  H04L9/06 ,  G06Q20/38 ,  G06F21/53 ,  G06Q20/40

Abstract: An electronic device may include: a communication circuit configured to communicate with an external electronic device, a display, a memory, and at least one processor electrically connected to the communication circuit, the display, and the memory, wherein the at least one processor is configured to operate a normal OS and a secure OS, and the memory stores instructions which, when executed, cause the at least one processor to control the electronic device to: receive a signature request message corresponding to a block chain through the communication circuit in the normal OS, drive block chain management software in response to receiving the signature request message, transfer the signature request message to the secure OS through the block chain management software, configure a user authentication request screen based on a trusted application being driven in the secure OS to output the user authentication request screen to the display, create a digital signature on the signature request message in the secure OS reflecting a private key stored in the memory in response to receiving a user authentication input for the digital signature, and transfer the digitally signed message to an application related to a block chain network in the normal OS through the block chain management software.

公开(公告)号：US20200052387A1

公开(公告)日：2020-02-13

申请号：US16530607

申请日：2019-08-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyeonchang SON ,  Kyeongmun JO ,  Seongmin JE

IPC: H01Q1/24 ,  H01Q11/02 ,  H04W4/02 ,  H01Q5/328

Abstract: An electronic device is provided. The electronic device includes a sensor, an antenna, a positioning circuit configured to receive satellite signals through the antenna using a specified frequency band, a resonant frequency adjustment circuit configured to adjust a resonant frequency of the antenna, and a processor, wherein the processor is configured to, identify whether the electronic device is in water using the sensor, when the electronic device is not in water, adjust the resonant frequency to a first frequency band specified according to a first permittivity of air in relation to the specified frequency band using the resonant frequency adjustment circuit, when the electronic device is in water, adjust the resonant frequency of the antenna to a second frequency band specified according to a second permittivity of water in relation to the specified frequency band using the resonant frequency adjustment circuit, receive the satellite signals through the antenna of which the resonant frequency has been adjusted to a frequency band corresponding to one of the first frequency band and the second frequency band using the positioning circuit; and determine a position of the electronic device primarily on the basis of the received satellite signals using the positioning circuit.