Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Body contact wave transfer
Patent
1995-07-24
1997-07-15
Kuntz, Curtis
Electrical audio signal processing systems and devices
Electro-acoustic audio transducer
Body contact wave transfer
381152, 381192, 381200, 3403111, 34082546, H04R 2500
Patent
active
056490208
ABSTRACT:
An electronic driver for use with linear and non-linear transducers includes a voltage controlled oscillator (1630) to generate an output signal (1603) in response to a frequency control signal (1625); a transducer driver (1604), coupled to the voltage controlled oscillator (1630) and to the transducer (600), includes an electromagnetic driver (604) to generate an electromagnetic field in response to the output signal (1603), and a power control circuit (2104, 2106) to suspend generation of the electromagnetic field for a portion of the output signal, the electromagnetic field generating movement of a magnetic motional mass (636) which is transformed into tactile energy; and a tactile energy monitor (1606) coupled to the electromagnetic driver (604) for monitoring a level of tactile energy generated by the movement of the magnetic motional mass (636), and in response thereto generates the frequency control signal (1625) to maximize the level of tactile energy generated.
REFERENCES:
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patent: 5524061 (1996-06-01), Mooney et al.
McClurg George W.
McKee John M.
Mooney Charles W.
Pace Gary Lee
Kuntz Curtis
Macnak Philip P.
Motorola Inc.
Nguyen Duc
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