Princeton Digital Image Corporation filed suit against Kyocera and its subsidiaries Kyocera Communications, Kyocera Electronic Devices, Kyocera Wireless, Kyocera America, Kyocera International, Kyocera Document Solutions, and Kyocera Document Solutions Development America alleging that the defendants jointly infringed a patent related to coding of digital signals in cameras, printers, and multi-function products (4,813,056).  Princeton Digital’s last suit asserting the ’056 patent was last week against Apple and Microsoft. Since January 2010, Princeton Digital has filed over 10 prior suits against other wireless communications and device companies, including Canon, Eastman Kodak, Facebook, Fujifilm, HP, ImageShack, Photobucket.com, Ricoh, Shutterfly, Xerox, and Yahoo.  The patent-in-suit originated with General Electric before being assigned to Princeton Digital in July 2009.  12/27, District of Delaware, 1:2012cv01770.