Team 3 Humphrey's Treasure Chest Patent Liability Roy Scheck Tony Leichty Charles Lan Steve Kingsley

MIDI-phone Functionality Two Major Functions Electronic Tuner Finds the fundamental frequency of a signal using an altered Zero-Crossing algorithm Matches the frequency with a “closest” Determines how off pitch the note is from “closest” match Analog to MIDI converter Takes the closest match determined above and transforms it into a MIDI signal

Electronic Tuner Literal Infringement Doctrine of Equivalents ~250 patents that have “electronic tuner” in its title Majority of patents researched were analog circuits Doctrine of Equivalents Existing patents would use digital logic to determine fundamental frequency through a zero-crossings algorithm

Analog to MIDI Literal Infringement Doctrine of Equivalents Not many analog to MIDI converters Many use FFT (multiple notes at once) Doctrine of Equivalents Existing patents would have to determine fundamental frequencies using a zero-crossings algorithm

Avoiding Infringement Different algorithms Can be programmed Possible to change in later stages of design Electronic Tuner If considered for mass production, the “tuning” characteristics could be scrapped