The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Dec. 27, 2022
Beijing Xiaomi Mobile Software Co., Ltd., Beijing, CN;
Guangjun Qiao, Beijing, CN;
BEIJING XIAOMI MOBILE SOFTWARE CO., LTD., Beijing, CN;
Abstract
A ranging method is performed using a terminal device including a processor and a ranging chip. The processor having a security region, and the security region is communicatively connected to the ranging chip. The ranging method includes: acquiring a session parameter generated from an initial communication between the terminal device and a device to be ranged; generating, in the security region, a ranging security parameter according to the session parameter; sending the ranging security parameter to the ranging chip via a communication channel between the security region and the ranging chip; and generating, by the ranging chip, a ranging time parameter according to the ranging security parameter, and performing, by the ranging chip, a ranging communication with the device to be ranged using the ranging time parameter to acquire a ranging result.