Smart volume controller and method thereof
AssigneexMEMS Labs, Inc.
InventorsJemm Yue Liang, Yanchen Lu
Life of this patent
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Abstract
A controller configured to control a sound producing module includes a volume controlling unit configured to determine a demodulation amplitude and a modulation amplitude corresponding to a target volume. The sound producing module comprises a driving circuit and an air-pulse generating device. The driving circuit generates a demodulation driving signal according to the demodulation amplitude and generates a modulation driving signal according to the modulation amplitude, so as to drive the air-pulse generating device. The air-pulse generating device produces sound via generating a plurality of air pulses at an ultrasonic pulse rate.
Claims22
A controller, configured to control a sound producing module, the controller comprising:
- a volume controlling unit, configured to determine a demodulation amplitude and a modulation amplitude corresponding to a target volume;
- wherein the sound producing module comprises a driving circuit and an air-pulse generating device;
- wherein the driving circuit generates a demodulation driving signal according to the demodulation amplitude and generates a modulation driving signal according to the modulation amplitude, so as to drive the air-pulse generating device;
- wherein the air-pulse generating device produces sound via generating a plurality of air pulses at an ultrasonic pulse rate.
A controller, configured to control a sound producing module, the controller comprising:
- a volume controlling unit;
- wherein the sound producing module comprises an air-pulse generating device;
- wherein the air-pulse generating device produces sound via generating a plurality of air pulses at an ultrasonic pulse rate;
- wherein the volume controlling unit adjusts a parameter such that an operating frequency of the air-pulse generating device is adjusted;
- wherein a volume of the sound produced by the air-pulse generating device is adjusted via adjusting the operating frequency.
A volume determining method, applied in a volume controlling unit within a controller for controlling a sound producing module, the volume determining method comprising:
- determining a demodulation amplitude and a modulation amplitude corresponding to a target volume;
- wherein the sound producing module comprises a driving circuit and an air-pulse generating device;
- wherein the driving circuit generates a demodulation driving signal according to the demodulation amplitude and generates a modulation driving signal according to the modulation amplitude, so as to drive the air-pulse generating device;
- wherein the air-pulse generating device produces sound via generating a plurality of air pulses at an ultrasonic pulse rate.
A volume adjusting method, configured to adjust a volume of a sound producing module, the volume adjusting method comprising:
- adjusting an operating frequency of an air-pulse generating device corresponding to an ultrasonic pulse rate;
- wherein the sound producing module comprises the air-pulse generating device;
- wherein the air-pulse generating device produces sound via generating a plurality of air pulses at the ultrasonic pulse rate.
Dependencies are inferred from the claim text.