US Patent 10902853 Electronic device and voice command identification method thereof

A voice command identification method for an electronic device having a microphone matrix is provided. The method includes: obtaining a plurality of sound signals from the microphone matrix; executing a voice purify operation on the sound signals to obtain a purified sound signal and identifying a target voice signal from the purified sound signal; calculating a compound speech feature data corresponding to the target voice signal through a compound speech recognition model; comparing the compound speech feature data with a plurality of reference speech feature data in the speech feature database, so as to determine a target command mapped to the target voice signal; and executing the target command.