About: http://webisa.webdatacommons.org/431146924

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	Output of the zero crossing detector is a signal which indicates a numerical value corresponding to the number of those tracks which are passed by the magnetic heads when the latter move transversely across
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com