US 12,452,592 B2
Coaxial speaker protection method, coaxial speaker protection system, coaxial speaker protection device, and coaxial speaker protector
Yuheng Jiang, Nanjing (CN); Lijian Ye, Nanjing (CN); Hongling Fu, Nanjing (CN); Ruizhi Lan, Nanjing (CN); and Kejia Liu, Nanjing (CN)
Assigned to AAC Technologies (Nanjing) Co., Ltd., Nanjing (CN)
Filed by AAC Technologies (Nanjing) Co., Ltd., Jiangsu (CN)
Filed on Dec. 18, 2023, as Appl. No. 18/544,360.
Application 18/544,360 is a continuation of application No. PCT/CN2023/086263, filed on Apr. 4, 2023.
Prior Publication US 2024/0340584 A1, Oct. 10, 2024
Int. Cl. H04R 3/00 (2006.01); G01K 7/00 (2006.01); H04R 29/00 (2006.01)
CPC H04R 3/007 (2013.01) [G01K 7/00 (2013.01); H04R 29/001 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A coaxial speaker protection method, comprising:
modeling a temperature of a tweeter to obtain a tweeter voltage-temperature transfer function;
modeling a temperature of a woofer to obtain a woofer voltage-amplitude-temperature transfer function;
modeling a coaxial device having the tweeter and the woofer to obtain a thermal conduction function of the coaxial device;
calculating a current temperature of the tweeter according to a current voltage of the tweeter;
calculating a current temperature of the woofer according to a current voltage of the woofer; and
connecting the tweeter and the woofer in series, obtaining a target gain according to the current temperature of the tweeter, the current temperature of the woofer, an original audio signal, and a corresponding preset threshold, and processing the original audio signal according to the target gain.