초록 ▼

Faithful replication of a drummer\s hits on an electric drum, free of cogeneration of spurious signals by acoustic coupling of the drum pick-up with extraneous energy sources such as nearby musical instruments is achieved by employing as the drum hit pick-up a variable resistance transducer comprisi

Faithful replication of a drummer\s hits on an electric drum, free of cogeneration of spurious signals by acoustic coupling of the drum pick-up with extraneous energy sources such as nearby musical instruments is achieved by employing as the drum hit pick-up a variable resistance transducer comprising a foamed dielectric matrix, e.g. polymer, having electroconductive particles therein, sandwiched between conductive members one of which is contiguous with the drum head.

대표청구항 ▼

In combination a drum having a drum head and a variable resistance electromechanical transducer substantially contiguous with said head and comprising first and second conductive members is surface contact with and spaced by a carbon impregnated resilient, dielectric, synthetic organic polymer matri

In combination a drum having a drum head and a variable resistance electromechanical transducer substantially contiguous with said head and comprising first and second conductive members is surface contact with and spaced by a carbon impregnated resilient, dielectric, synthetic organic polymer matrix defining a drum head hit pressure responsive, variable resistance medium between said members in acoustic coupling free relation.