About: http://webisa.webdatacommons.org/172947924

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	Such a system and method, which has been disclosed within U.S. Pat. No. 5,311,588, referenced above, is quite effective for determining if a signal is a tone or a click signal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com