About: http://webisa.webdatacommons.org/99292802

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	Secondly, ac data input signals, such as the frequency modulated signals shown in FIG. 12, requires conversion to binary logic DC voltage levels to which subsequent circuit logic can respond.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com