US 12,078,694 B2
Sensor-based tamper detection for mounted electronic devices
Aditya Shailesh Ghadiali, Mountain View, CA (US); and William Alan Saperstein, San Carlos, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Appl. No. 17/624,967
Filed by Google LLC, Mountain View, CA (US)
PCT Filed Jul. 29, 2020, PCT No. PCT/US2020/044049
§ 371(c)(1), (2) Date Jan. 5, 2022,
PCT Pub. No. WO2021/021918, PCT Pub. Date Feb. 4, 2021.
Claims priority of provisional application 62/880,625, filed on Jul. 30, 2019.
Prior Publication US 2022/0268860 A1, Aug. 25, 2022
Int. Cl. G01R 33/038 (2006.01); G01D 5/14 (2006.01); G01R 33/07 (2006.01); G08B 13/14 (2006.01); G08B 13/196 (2006.01); H04N 23/50 (2023.01); H04N 23/667 (2023.01)
CPC G01R 33/038 (2013.01) [G01D 5/145 (2013.01); G01R 33/072 (2013.01); G08B 13/149 (2013.01); G08B 13/19632 (2013.01); H04N 23/50 (2023.01); H04N 23/667 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a mounting device configured to couple to a surface, the mounting device including a magnet;
a head removably coupled to the mounting device, the head including a housing;
and
a sensor disposed within the housing, the sensor configured to:
detect a first magnetic field strength value associated with the magnet when the head is coupled to the mounting device in a first position relative to the mounting device, the first position defining a first orientation of the sensor relative to the magnet; and
detect a second magnetic field strength value associated with the magnet when the head is coupled to the mounting device in a second position relative to the mounting device, the second position being different from the first position, the second position defining a second orientation of the sensor relative to the magnet that is different from the first orientation.