"Casio Settles Video Patent Infringement Suit" (November 19, 2010), an article published on Law360.com, details the settlement between Advanced Video Technologies LLC (AVT) and Casio America Inc.
The article also mentions AVT's parent company, General Patent Corporation: "AVT is owned by General Patent Corp., which claims to be the oldest patent enforcement firm in the U.S. An advocate for non-practicing patent holders, GPC has published short videos ridiculing the notion of 'patent trolls' as corporate propaganda." Read article (subscription required)