Patent number cn201110459534.7.

The applicant of "Harmonic Generation Method, Device and Sound Playing Equipment of Bass Signal" is TCL Group. The method described in this patent includes: generating N-th harmonics of a plurality of bass signals according to the bass signals, wherein the N-th harmonics include even harmonics and odd harmonics; When the nth harmonic is an even harmonic, the nth harmonic is obtained by multiplying the nth/2nd harmonic and the nth/2nd harmonic of the bass signal by a multiplier; When the nth harmonic is an odd harmonic, the nth harmonic is obtained by multiplying the (n-1)/2nd harmonic of the bass signal with the (n+1)/2nd harmonic, where n is a multiple of the frequency of the harmonic relative to the frequency of the bass signal, and n is an integer greater than1; The adder is used to add the harmonics and output the added harmonics. According to the invention, each harmonic of a bass signal with a relatively fixed difference frequency can be generated, so that the amplitude of each harmonic can be independently adjusted, and the sound quality of the bass signal output by the loudspeaker is improved.