08727611 is referenced by 32 patents and cites 364 patents.

Provided according to one or more embodiments is a thermostat having a housing, the housing including a forward-facing surface, the thermostat comprising a passive infrared (PIR) motion sensor disposed inside the housing for sensing occupancy in the vicinity of the thermostat. The PIR motion sensor has a radiation receiving surface and is able to detect the lateral movement of an occupant in front of the forward-facing surface of the housing. The thermostat further comprises a grille member having one or more openings and included along the forward-facing surface of the housing, the grille member being placed over the radiation receiving surface of the PIR motion sensor. The grille member is configured and dimensioned to visually conceal and protect the PIR motion sensor disposed inside the housing, the visual concealment promoting a visually pleasing quality of the thermostat, while at the same time permitting the PIR motion sensor to effectively detect the lateral movement of the occupant. In one embodiment, the grille member openings are slit-like openings oriented along a substantially horizontal direction.

Title
System and method for integrating sensors in thermostats
Application Number
13/199108
Publication Number
8727611 (B2)
Application Date
August 17, 2011
Publication Date
May 20, 2014
Inventor
Anthony Michael Fadell
Portola Valley
CA, US
Matthew Lee Rogers
Los Gatos
CA, US
David Sloo
Menlo Park
CA, US
Fred Bould
Menlo Park
CA, US
John Benjamin Filson
Mountain View
CA, US
Brian Huppi
San Francisco
CA, US
Agent
Kilpatrick Townsend & Stockton
Assignee
Nest Labs
CA, US
IPC
G01J 5/00
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