Music – Instruments – Electrical musical tone generation
Reexamination Certificate
2006-05-16
2006-05-16
Martin, David (Department: 2837)
Music
Instruments
Electrical musical tone generation
C324S207200
Reexamination Certificate
active
07045701
ABSTRACT:
An expression shoe includes a pedal, a base, and a bearing arrangement rotatably connecting the pedal to the base. A sensor arrangement produces a senor signal corresponding to a rotational position of the pedal with respect to the base. The sensor includes a hall-effect sensor mounted to one of the pedal and the base and a magnetic field producing device mounted to the other of the pedal and the base for producing a linear output signal in response to movement of the pedal relative to the base.
REFERENCES:
patent: 3558793 (1971-01-01), Nakada et al.
patent: 4306697 (1981-12-01), Mathews
patent: 6426619 (2002-07-01), Pfaffenberger et al.
Dressler Jesse F.
Johnson Scott J.
Light Kevin H.
Walker Robert A.
Chalfie Edward J.
Ladas & Parry LLP
Martin David
Qin Jianchun
Walker Technical Co., Inc.
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