Patent ID: 9176589
Filing Date: 2015-11-03
Classification: G06F

Abstract:
1. A gesture recognition apparatus, comprising a left source configured to generate a left basic signal; a right source configured to generate a right basic signal; a detector configured to detect the left basic signal and the right basic signal without reflecting by a hand and Doppler shift signals of the left and right basic signals after reflection by the hand, the detector disposed between the left source and the right source; wherein, a difference of frequency between the left basic signal and the second basic signal is not less than 1000 Hz; a processer configured for dealing with signals from the detector with a Hamming window and FFT, obtaining a first frequency shift of the left basic signal and a second frequency shift of the right basic signal, normalizing the first frequency shift by dividing by an amplification of the left basic signal, calculating a sum of blue shift energy and a sum of red shift energy of the normalized first frequency shift, and obtaining a first frequency shift energy curve; wherein the processor is further configured for normalizing second frequency shift by dividing by an amplification of the right basic signal, calculating a sum of blue shift energy and a sum of red shift energy of the normalized second frequency shift signal, and obtaining a second frequency shift energy curve; obtaining a first two-value frequency shift energy curve and a second two-value frequency shift curve by setting thresholds; extracting a state sequence from the two two-value frequency shift energy curves; comparing the state sequence with a state sequence module board and recognizing the corresponding gesture; and outputting a corresponding operation.