Determining the temperature of a loudspeaker voice coil
AssigneeNXP B.V.
InventorTemujin Gautama
Life of this patent
Estimating the term…
Abstract
A method for determining the temperature of a loudspeaker voice coil comprising the steps of: determining the impedance value of a loudspeaker voice coil at a predetermined evaluation frequency which is greater than 16 kHz and/or in the ultrasonic frequency range; and determining a measure of the temperature of the loudspeaker voice coil based on the impedance value.
Claims15
A method for determining the temperature of a loudspeaker voice coil comprising the steps of:
- determining the impedance value of a loudspeaker voice coil at a predetermined evaluation frequency greater than 16 kHz;
- and
- determining a measure of the temperature of the loudspeaker voice coil based on the impedance value.
A method for determining the temperature of a loudspeaker voice coil comprising the steps of:
- determining the impedance value of a loudspeaker voice coil at a predetermined ultrasonic evaluation frequency;
- and
- determining a measure of the temperature of the loudspeaker voice coil based on the impedance value.
An apparatus comprising:
- an impedance determining module configured to determine the impedance value of a loudspeaker voice coil at a predetermined evaluation frequency greater than 16 kHz;
- and
- a temperature determining module configured to determine a measure of the temperature of the loudspeaker voice coil based on the impedance value.
An apparatus comprising:
- an impedance determining module configured to determine the impedance value of a loudspeaker voice coil at a predetermined ultrasonic frequency;
- and
- a temperature determining module configured to determine a measure of the temperature of the loudspeaker voice coil based on the impedance value.
A computer program comprising computer program code configured to:
- determine the impedance value of a loudspeaker voice coil at a predetermined evaluation frequency greater than 16 kHz;
- and
- determine a measure of the temperature of the loudspeaker voice coil based on the impedance value.
A computer program comprising computer program code configured to:
- determine the impedance value of a loudspeaker voice coil at a predetermined ultrasonic frequency;
- and
- determine a measure of the temperature of the loudspeaker voice coil based on the impedance value.
Dependencies are inferred from the claim text.