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公开(公告)号：DE3786129D1
公开(公告)日：1993-07-15
申请号：DE3786129
申请日：1987-03-18
Applicant: SENSOR TECHNOLOGIES INC
Inventor： FIORI DAVID
Abstract: A musical keyboard having keys which carry metal spoilers that alter the resonance characteristics of tank circuits associated with the keys as the keys move toward and away from the inductance coils of the tank circuits. The tank circuits are connected sequentially to a frequency sensing circuit which develops indications of key positions by sensing the resonance frequency of each tank circuit.
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