US 12,111,713 B2
Smartphone-based radar system for determining user intention in a lower-power mode
Leonardo Giusti, San Francisco, CA (US); Ivan Poupyrev, Sunnyvale, CA (US); Eiji Hayashi, Cupertino, CA (US); and Patrick M. Amihood, Palo Alto, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Feb. 9, 2022, as Appl. No. 17/650,488.
Application 17/650,488 is a continuation of application No. 17/035,059, filed on Sep. 28, 2020, granted, now 11,314,312.
Application 17/035,059 is a continuation of application No. 16/166,900, filed on Oct. 22, 2018, granted, now 10,788,880, issued on Sep. 29, 2020.
Prior Publication US 2022/0269329 A1, Aug. 25, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 1/3231 (2019.01); G01S 7/35 (2006.01); G01S 13/04 (2006.01); G06F 1/3287 (2019.01); G06F 3/01 (2006.01)
CPC G06F 1/3231 (2013.01) [G01S 7/35 (2013.01); G01S 13/04 (2013.01); G06F 1/3287 (2013.01); G06F 3/017 (2013.01)] 22 Claims
OG exemplary drawing
 
1. An electronic device, comprising:
a radar system, implemented at least partially in hardware, configured to:
provide a radar field;
sense reflections from an object in the radar field;
provide an analysis of the reflections from the object; and
provide, based on the analysis of the reflections, radar data; and
one or more computer-readable media having instructions stored thereon that, responsive to execution by one or more computer processors, implement a persistent radar-based interaction manager configured to:
maintain the radar system in an idle mode, the idle mode:
requiring no more than a first threshold of power; and
comprising the radar system operating with a first set of radar characteristics comprising at least one of a first maximum transmit power available to the radar system, a first set of sensors available to the radar system, a first set of one or more processors available to the radar system, or a first duty cycle of the radar system;
determine, based on the radar data, whether a presence of the object is within an awareness zone of the electronic device; and
responsive to a determination that the object is within the awareness zone, cause the radar system to exit the idle mode and enter an interaction mode, the interaction mode:
requiring no more than a second threshold of power, the second threshold of power greater than the first threshold of power; and
comprising the radar system operating with a second set of radar characteristics comprising at least one of a second maximum transmit power available to the radar system, a second set of sensors available to the radar system, a second set of one or more processors available to the radar system, or a second duty cycle of the radar system.