US 12,446,136 B2
Passive infrared sensor device
Clare Zhang, Mountain View, CA (US); James Castro, San Jose, CA (US); Ken Jenks, San Jose, CA (US); and Bryan Macomber, Los Altos Hills, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Filed by Google LLC, Mountain View, CA (US)
Filed on Jan. 23, 2023, as Appl. No. 18/100,219.
Application 18/100,219 is a continuation of application No. 16/983,631, filed on Aug. 3, 2020, granted, now 11,596,043.
Application 16/983,631 is a continuation of application No. 15/876,824, filed on Jan. 22, 2018, granted, now 10,732,051, issued on Aug. 4, 2020.
Prior Publication US 2023/0189418 A1, Jun. 15, 2023
Int. Cl. H05B 47/13 (2020.01); G01J 5/02 (2022.01); G01J 5/10 (2006.01); G08B 5/36 (2006.01); G08B 13/186 (2006.01); G08B 13/191 (2006.01); G08B 13/193 (2006.01); G08B 25/08 (2006.01); H05B 47/11 (2020.01)
CPC H05B 47/13 (2020.01) [G01J 5/025 (2013.01); G01J 5/10 (2013.01); G08B 5/36 (2013.01); G08B 13/186 (2013.01); G08B 13/191 (2013.01); G08B 13/193 (2013.01); G08B 25/08 (2013.01); H05B 47/11 (2020.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a housing comprising a battery compartment and a retention part for retaining a battery in the battery compartment;
a sensor disposed in the housing;
a backplate comprising at least one slot for attachment to a snap of a magazine disposed in the housing; and
a tamper switch, the tamper switch comprising a cap, a frame placed around the cap, a plunger, and a detect switch, wherein the cap protrudes through an opening in the frame and is positioned to push down the plunger that is positioned to push down the detect switch when pressed against a surface and release the plunger which releases the detect switch when not pressed against a surface.