CPC G10K 11/17853 (2018.01) [G10K 11/17857 (2018.01); G10K 2210/11 (2013.01)] | 20 Claims |
1. An electronic system with heat dissipation and feed-forward active noise control function, comprising:
a fan module configured to operate according to a fan control signal for providing heat dissipation;
an embedded controller configured to provide the fan control signal;
a reference microphone configured to detect a wide-band noise generated during an operation of the fan module and provide a corresponding wide-band noise signal;
a micro speaker module configured to generate a noise-cancellation signal according to the speaker control signal; and
an active noise cancellation (ANC) controller configured to:
provide a virtual error signal according to a first transfer function, a second transfer function and the wide-band noise signal; and
provide the speaker control signal according to a synchronization signal, the wide-band noise signal and the virtual error signal, wherein:
the synchronization signal includes information associated with a structure and an operational setting of the fan module;
the first transfer function is a transfer function between the reference microphone and a physical microphone when the micro speaker is not in operation;
the second transfer function is a transfer function between the micro speaker module and the physical microphone when the fan module is not in operation; and
the noise-cancellation signal includes a plurality of noise-compensation signals for canceling noises generated during the operation of the electronic system.
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