Speaker driving device
AssigneeTrigence Semiconductor, Inc.
InventorsAkira YASUDA, Jun-ichi OKAMURA, Hiroshi IWAMURA
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Abstract
A speaker driving device including a setting part setting at least one parameter defining an equivalent circuit of a first speaker unit as a first parameter; a first calculator configured to change a first frequency response based on the first parameter, the changed first frequency response being applied to an input signal; and a driving signal generator configured to generate a drive signal for driving a speaker unit based on a first calculation signal, the first calculation signal being obtained by applying the changed first frequency response to the input signal.
Claims20
A speaker drive device comprising:
- a setting part setting at least one parameter defining an equivalent circuit of a first speaker unit as a first parameter;
- a first calculator configured to change a first frequency response based on the first parameter, the changed first frequency response being applied to an input signal;
- and
- a driving signal generator configured to generate a drive signal for driving a speaker unit based on a first calculation signal, the first calculation signal being obtained by applying the changed first frequency response to the input signal.
A speaker drive device comprising:
- a first calculator calculating information related to a position of a diaphragm of a first speaker unit corresponding to a specified first parameter by a calculation using an input signal and outputting a first calculation signal corresponding to the calculated information;
- and
- a drive signal generator generating a drive signal for driving a speaker unit based on the first calculation signal;
- wherein
- the drive signal generator includes a second calculator,
- the second calculator calculates information related to a position of a diaphragm of a second speaker unit corresponding to a specified second parameter by a calculation using the drive signal and outputting a second calculation signal corresponding to the calculated information;
- and
- the drive signal generator generates the drive signal based on the first calculation signal and the second calculation signal.
A speaker drive device comprising:
- a drive signal generator generating a drive signal for driving a speaker unit based on an input signal;
- wherein
- the drive signal generator includes a second calculator,
- the second calculator changes a second frequency response of the drive signal based on a second parameter corresponding to a second speaker unit, and
- the drive signal is generated based on the input signal and a drive signal with the second frequency response changed by the second calculator.
Dependencies are inferred from the claim text.