"Apple could face larger penalties because EZ4Media manufactures a product using the named patents. This differs from patent-infringement lawsuits brought by so-called “patent trolls” that produce no product, seeking to leverage patents for revenue. Along with Apple, the plaintiff is suing Logitech, Netgear, D-Link, Samsung, Pioneer, Yamaha and D&M Holdings, which oversees audio brands including Marantz, Boston Acoustics, McIntosh and Denon."
Source: http://cultofmac.com/apple-tv-hit-with-patent-infringement-lawsuit/6170


