US 12,425,779 B2
Hearing aid device with functions of anti-noise and 3D sound recognition
Cheng-Yuan Chang, Taoyuan (TW); and Chong-Rui Huang, Taoyuan (TW)
Assigned to CHUNG YUAN CHRISTIAN UNIVERSITY, Taoyuan (TW)
Filed by CHUNG YUAN CHRISTIAN UNIVERSITY, Taoyuan (TW)
Filed on Oct. 27, 2022, as Appl. No. 18/050,077.
Claims priority of application No. 111130021 (TW), filed on Aug. 10, 2022.
Prior Publication US 2024/0056745 A1, Feb. 15, 2024
Int. Cl. H04R 25/00 (2006.01)
CPC H04R 25/407 (2013.01) [H04R 25/505 (2013.01); H04R 2460/01 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A hearing aid device with functions of anti-noise and 3D sound recognition, comprising:
a plurality of microphones;
at least one analog-to-digital converter, being coupled to the plurality of microphones for receiving a plurality of analog audio signals, and converting the plurality of analog audio signals to a plurality of first digital audio signals;
a modular electronic device, being coupled to the analog-to-digital converter for receiving the plurality of first digital audio signals, and comprising:
a first module, being configured for generating a plurality of second digital audio signals through multiplying each said first digital audio signal by a head related transfer function, and generating a reference signal by conducting a first summation calculation of the plurality of second digital audio signals; and
a second module, being configured for generating a first output signal by applying an active noise attenuating process to the reference signal, generating a second output signal by applying a hear-through process to the reference signal, and generating an output signal based on the first output signal and the second output signal;
at least one digital-to-analog converter, being coupled to the modular electronic device for receiving the output signal, and converting the output signal to an analog output signal; and
a loudspeaker, being coupled to the digital-to-analog converter for receiving the analog output signal, and broadcasting a sound according to the analog output signal.