US 12,407,981 B2
Audio system
Zhongfeng Pan, Shanghai (CN); Lei Wang, Jiangsu (CN); Qiang Zhou, Shanghai (CN); and Weijia Lu, Shanghai (CN)
Assigned to Harman International Industries, Incorporated, Stamford, CT (US)
Filed by HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED, Stamford, CT (US)
Filed on Aug. 7, 2023, as Appl. No. 18/230,942.
Claims priority of application No. 202210954409.1 (CN), filed on Aug. 10, 2022.
Prior Publication US 2024/0056731 A1, Feb. 15, 2024
Int. Cl. H04R 3/00 (2006.01); H03F 3/21 (2006.01); H04R 29/00 (2006.01)
CPC H04R 3/00 (2013.01) [H03F 3/211 (2013.01); H04R 29/001 (2013.01); H03F 2200/03 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An audio system comprising:
a target audio signal generator module comprising a plurality of target audio signal generators, configured to receive an audio signal and a tracking signal and to generate a plurality of target audio signals based on the audio signal and tracking signal;
a tracking power supply circuit module comprising a plurality of tracking power supply circuits, configured to receive the plurality of target audio signals and to generate a plurality of power supply voltages based on the plurality of target audio signals; and
an audio power amplifier module comprising a plurality of audio power amplifying circuits, configured to receive the plurality of target audio signals and the plurality of power supply voltages, and to amplify the plurality of target audio signals;
wherein each of the plurality of tracking power supply circuits provides a corresponding power supply voltage for each of the plurality of audio power amplifying circuits.