About: http://webisa.webdatacommons.org/41076027

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. 4 FIG. 4 is an apparatus particularly designed for transmitting digital coding information such as teletext now found in the vertical blanking interval (VBI) of a broadcast signal.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com