About: http://webisa.webdatacommons.org/12423773

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	In an alternative embodiment of the present invention, the transmitting device is a first transmitting device, the receiving device is a first receiving device, and the presence signal is a first presence signal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com