HIGH DISPLACEMENT ACOUSTIC TRANSDUCER SYSTEMS
First Claim
1. An acoustic transducer system comprising:
- a driver motor operable to generate a magnetic flux;
a diaphragm operably coupled to the driver motor;
a voice coil coupled to the diaphragm, the voice coil being movable at least in response to the magnetic flux;
a diaphragm position sensing module generating a position signal corresponding to a displacement of the diaphragm relative to an initial position of the diaphragm; and
a controller in electronic communication with the driver motor and the diaphragm position sensing module, the controller being operable to;
receive an input audio signal;
generate a control signal based at least on a version of the input audio signal and the position signal; and
transmit the control signal to the voice coil, the voice coil moving at least in response to the control signal.
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Accused Products
Abstract
Acoustic transducer systems are described herein and in particular, acoustic transducer systems involving high displacement are described. An example acoustic transducer system includes an acoustic driver, a diaphragm position sensing module for generating a position signal corresponding to a displacement of a diaphragm of the acoustic driver, and a controller operable to: receive an input audio signal; generate a control signal based at least on the input audio signal and the position signal; and transmit the control signal to a voice coil operably coupled to the diaphragm so that the voice coil moves within an air gap within the acoustic driver at least partially in response to the control signal. A height of the voice coil can correspond substantially to a gap height in some embodiments.
174 Citations
25 Claims
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1. An acoustic transducer system comprising:
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a driver motor operable to generate a magnetic flux; a diaphragm operably coupled to the driver motor; a voice coil coupled to the diaphragm, the voice coil being movable at least in response to the magnetic flux; a diaphragm position sensing module generating a position signal corresponding to a displacement of the diaphragm relative to an initial position of the diaphragm; and a controller in electronic communication with the driver motor and the diaphragm position sensing module, the controller being operable to; receive an input audio signal; generate a control signal based at least on a version of the input audio signal and the position signal; and transmit the control signal to the voice coil, the voice coil moving at least in response to the control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification