Invention Grant
- Patent Title: Method for performing distance measurement and authentication concurrently and electronic device thereof
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Application No.: US16857493Application Date: 2020-04-24
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Publication No.: US11573313B2Publication Date: 2023-02-07
- Inventor: Sejong Yoon , Moonseok Kang , Hyunchul Kim , Yi Yang , Jonghoon Jang , Doosuk Kang
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Gyeonggi-do
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Gyeonggi-do
- Agency: Cha & Reiter, LLC
- Priority: KR10-2019-0055447 20190513
- Main IPC: G01S13/76
- IPC: G01S13/76

Abstract:
A first electronic device, second electronic device, and a method are disclosed herein. The first electronic device includes communication circuitry and a processor that implements the method, including transmitting, using the communication circuit, a distance measurement signal including the first secure preamble to the second electronic device, receiving a response signal through the communication circuit including a second secure preamble generated by the second electronic device from the external electronic device, authenticating the response signal based on the second secure preamble, and based on successful authentication, determining a distance to the second electronic device based on a transmission time of the distance measurement signal and a reception time of the response signal.
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