US 12,323,119 B2
Headset communication system
Jason A. Solbeck, Atkinson, NH (US); and Jacob Chaloux, Derry, NH (US)
Assigned to Gentex Corporation, Simpson, PA (US)
Appl. No. 17/053,623
Filed by Gentex Corporation, Simpson, PA (US)
PCT Filed May 17, 2019, PCT No. PCT/US2019/032900
§ 371(c)(1), (2) Date Nov. 6, 2020,
PCT Pub. No. WO2019/222648, PCT Pub. Date Nov. 21, 2019.
Claims priority of provisional application 62/673,836, filed on May 18, 2018.
Claims priority of provisional application 62/673,599, filed on May 18, 2018.
Prior Publication US 2021/0226599 A1, Jul. 22, 2021
Int. Cl. H03G 3/34 (2006.01); H03F 1/52 (2006.01); H04R 1/10 (2006.01)
CPC H03G 3/342 (2013.01) [H03F 1/52 (2013.01); H04R 1/1041 (2013.01); H03F 2200/03 (2013.01); H04R 2420/07 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A hear-through limiter, comprising:
a peak envelope module configured to:
receive first and second audio signals from first and second audio source terminal devices, respectively, and
calculate a first peak value of the first audio signal and a second peak value of the second audio signal;
compare the first peak value of the first audio signal to a previous first peak value of the first audio signal and the second peak value of the second audio signal to a previous second peak value of the second audio signal;
output either the first peak value of the first audio signal or the previous first peak value and either the second peak value of the second audio signal or the previous second peak value based on whether the first peak value of the first audio signal and the second peak value of the second audio signal are greater than, or less than, the previous first and second peak values;
a compare module configured to:
receive the first peak value of the first audio signal and the second peak value of the second audio signal from the peak envelope module;
compare the first peak value of the first audio signal to the second peak value of the second audio signal, and
generate a peak comparison signal representative of either the first audio signal or the second audio signal based on whether the first peak value is greater than, or less than, the second peak value; and
a limiter module configured to:
selectively attenuate the first and second audio signals responsive to a determination that an amplitude of the peak comparison signal exceeds a predetermined limit threshold, wherein the limiter module does not attenuate the first or second audio signal responsive to a determination that the amplitude of the peak comparison signal is less than the predetermined limit threshold, and
transmit the attenuated first and second audio signals to first and second audio destination devices, respectively, to produce sound audible to a user.