About: http://webisa.webdatacommons.org/246242493

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	The optical touch system senses N touch points triggered on the optical touch panel, wherein N is a positive integer greater than 1.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com