US 12,239,456 B1
Millimeter wave radar system for sleep monitoring
Giovanni Mata Magana, East Palo Alto, CA (US); Evan Fletcher Dougal, San Francisco, CA (US); Tianchen Li, Sunnyvale, CA (US); Alexander David Savello, San Francisco, CA (US); and Ennzhi Chew, Cupertino, CA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Apr. 7, 2021, as Appl. No. 17/224,587.
Int. Cl. A61B 5/00 (2006.01); A61B 5/08 (2006.01)
CPC A61B 5/4812 (2013.01) [A61B 5/0008 (2013.01); A61B 5/0015 (2013.01); A61B 5/0816 (2013.01); A61B 2562/0271 (2013.01); A61B 2562/16 (2013.01); A61B 2562/166 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A device comprising:
a housing comprising a first side and an opposing second side;
a radome transparent to millimeter wave radio frequency (RF) signals and disposed in the first side;
a radar device comprising a circuit board, a millimeter wave radar signal emitter disposed on the circuit board, and an antenna array, the radar device having a third side and an opposing fourth side, wherein:
the radar device is positioned at a distance from the radome and is oriented in a plane that is parallel to a plane along which the radome is oriented, the third side facing the radome,
the antenna array is disposed on the third side and is at a non-zero angle relative to a vertical axis of the device,
an edge of the circuit board is at a non-zero angle relative to an axis that is normal to a supporting surface on which the housing is supported, and
the radar device generates radar data based at least in part on reflected millimeter wave RF signals received at the antenna array;
a main logic board communicatively coupled with the radar device,
positioned adjacent to the fourth side, and configured to receive the radar data;
a heat sink positioned adjacent to the main logic board such that the main logic board is between the heat sink and the radar device;
a clamp positioned between the heat sink and the second side of the housing; and
a stand coupled with the clamp.