About: http://webisa.webdatacommons.org/371002393

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	FIG. 2 is a schematic of a circuit for analyzing and comparing the received signal and producing a switching signal if the received amplitude is below a reference threshold.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com