About: http://webisa.webdatacommons.org/41936727

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	As a further aspect of the preferred embodiment, both echo cancellers may be digital echo cancellers, operating on digital forms of the transmitted and echoed signals.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com