About: http://webisa.webdatacommons.org/335477844

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A sensor such as a proximity sensor may be used to detect when the electronic device is in close proximity to a user's head.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com