DETECTING SYSTEM FOR A STRING INSTRUMENT

摘要

A detection system is provided for detecting a musical note played on a string instrument having a fretboard provided with a plurality of conductive frets and conductive strings. The system includes at least one conductor coupled to each of the frets; an inverter having a first terminal coupled to the conductor and a second terminal coupled to the conductive string, the inverter being configured to logically invert a signal transmitted therethrough, such that when the conductive string is pressed against one of the frets allowing thereby for a signal to be transmitted therethrough, the signal is sequentially inverted between two logical states at a frequency being dependent on the distance between the inverter and the fret; a frequency detector configured to measure the frequency; and a controller configured for determining the location of the fret along the fretboard in accordance with the frequency, and to thereby detect the musical note.

主权项

1. A detection system for detecting a musical note played on a string instrument having a fret board provided with a plurality of conductive frets and at least one conductive string extending along thereof, the detection system comprising:
at least one conductor coupled to each of said frets; an inverter having a first terminal coupled to said conductor and a second terminal coupled to the conductive string, said inverter being configured to logically invert a signal transmitted therethrough, such that when the conductive string is pressed against one of said frets allowing thereby for a signal to be transmitted therethrough, said signal is sequentially inverted between two logical states at a frequency being dependent on the distance between said inverter and said fret; a frequency detector configured to measure said frequency; and, a controller configured for determining the location of said fret along the fretboard in accordance with said frequency, and to thereby detect the musical note.