The Personal Audio system was developed by Jim Logan, Dan Goessling and Charles Call. Jim Logan had previously been the founder and CEO of MicroTouch Systems, Inc., which by 1996 had grown to become the world’s largest manufacturer of touch screen systems. Logan is a named inventor on 39 U.S. patents. Dan Goessling is a computer hardware and software engineer who is the named inventor on 13 U.S. patents. In 1992, prior to working on the Personal Audio system, Logan and Goessling designed the first system for pausing live television by continuously digitally recording an incoming television signal for playback as described in U.S. Patent Re36,801. This patent was licensed to Motorola and was the subject of a patent infringement suit brought against Tivo. Charles Call is a patent attorney and software developer who is the named inventor on 15 U.S. Patents.