US 12,241,963 B2
Angle estimation with multi-frame processing for radar on mobile devices
Vutha Va, Plano, TX (US); Boon Loong Ng, Plano, TX (US); Anum Ali, Plano, TX (US); and Jianhua Mo, Allen, TX (US)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Jan. 21, 2022, as Appl. No. 17/581,748.
Claims priority of provisional application 63/215,039, filed on Jun. 25, 2021.
Prior Publication US 2022/0413120 A1, Dec. 29, 2022
Int. Cl. G01S 13/68 (2006.01); G01S 7/41 (2006.01); G01S 13/42 (2006.01); G01S 13/52 (2006.01)
CPC G01S 13/68 (2013.01) [G01S 7/415 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a radar transceiver; and
a processor operably connected to the radar transceiver, the processor configured to:
transmit, via the radar transceiver, radar signals to detect an object within regions expanding from the electronic device,
detect the object using a single radar frame or multiple radar frames from the radar signals,
determine whether to use the single radar frame or the multiple radar frames based on motion of the object for angle identification between the object and the electronic device by using a tap index of the single radar frame, a tap index of the multiple radar frames, or both,
identify an angle between the object and the electronic device using (i) the single radar frame based on a determination to use the single radar frame or (ii) the multiple radar frames based on a determination to use the multiple radar frames, and
modify radio frequency exposure levels at one or more of the regions based on the angle of the object relative to the electronic device.