1. Patent Liability Analysis Team 2: Hooked on Harmonix

2. Similar Commercial Products “I can Play! Piano” by Fisher Price“I can Play! Piano” by Fisher Price

3. Infringement? Doctrine of Equivalents is not satisfiedDoctrine of Equivalents is not satisfied –Can only be used with special keyboard –VGA output implementation differs substantially from RCA television output –MIDI songs do not exist in memory, but are loaded from cartridges

4. Similar Commercial Products “Piano Wizard” by Allegro Rainbow“Piano Wizard” by Allegro Rainbow

5. Infringement? Doctrine of Equivalents is not satisfiedDoctrine of Equivalents is not satisfied –Requires a separate computer to execute the software and manage all input/output signals –Input is provided through USB rather than MIDI standard –MIDI songs are downloaded from Internet rather than preexisting in Flash memory