About: http://webisa.webdatacommons.org/297343141

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	The invention enables the displaying of a high-quality image on a flat surface, such as a wall, which absorbs sound frequencies in addition to what would be possible were only foam absorbers to be used.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com