Also featured on a range of Huawei devices, HUAWEI Histen enriches the AI speaker's set of features by including virtual bass, linear phase equalizer
, adaptive gain control, far-field voice recognition and more as part of its repertoire.
Adaptive Nonlinear Phase Equalizer. In this study, it is proposed an adaptive nonlinear phase equalizer for compensating the pulse distortion by combining allpass biquad IIR  and FIR filters with a channel estimator block as Figure 4.
Adaptive Nonlinear Phase Equalizer. The proposed adaptive nonlinear phase equalizer is used for mitigating the distortions due to tropical outdoor channel and comes from dispersive antenna.
In this scenario, we proposed an adaptive nonlinear phase equalizer based on allpass biquad IIR order 6 cascaded to FIR filter order 6.
A proposed adaptive nonlinear phase equalizer with allpass IIR order 6 or more cascaded with a low-order FIR structure (>6) can be used to compensate an accumulation of distortion by the transmission channel and the antenna.
To introduce a phase shift in a signal, a 'Lattice Phase Equalizer', which is composed of inductors and capacitors is used [27,28].
The suppressing effect of the Lattice Phase Equalizer on the below-resonance enhancement is seen clearly.
A promising method to improve the shielding based on passive LC circuits with a lattice phase equalizer has been introduced, analyzed, and measured.
In order to provide adequate margin, phase equalizer
networks typically are incorporated in each filter design.