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:
Nov. 23, 2021
Filed:
Aug. 14, 2019
Apple Inc., Cupertino, CA (US);
Vusthla Sunil Reddy, San Jose, CA (US);
Alejandro J. Marquez, Sunnyvale, CA (US);
Indranil S. Sen, Cupertino, CA (US);
Manjit S. Walia, San Jose, CA (US);
Peter M. Agboh, San Francisco, CA (US);
Shang-Te Yang, San Jose, CA (US);
Xiaoming Yu, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Methods and apparatuses are presented to locate a wireless communication device. A target device may be out of range of a source device for normal ranging communications according to a first radio access technology (RAT), such as ultra wideband (UWB) communications. A source device may therefore modify communications according to the first RAT, to increase the transmit power, while removing the data payload. The target device may utilize the signal strength and angle of arrival of the modified communications to guide the user to move toward the source device, e.g., until the target device is within range to perform normal ranging communications. A second RAT, such as Bluetooth, may be used to communicate between the two devices while the target device is out of range of the first RAT. For example, the target device may use the second RAT to communicate to the source device to start/stop transmitting modified communications.