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US 12,323,119 B2Granted
Headset communication system
AssigneeGentex Corporation
InventorsJason A. Solbeck, Jacob Chaloux
Life of this patent
Estimating the term…
Abstract
A headset communication system with improved functionality. The headset communication system may include hear-through limiter functionality. The headset communication system may include failsafe functionality. The headset communication system may include multichannel, mixing, passive push-to-talk functionality. The headset communication system may include near field magnetic induction functionality.
Claims14
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.
10 more elements
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,
- wherein the peak envelope module is configured to calculate the first peak value or the second peak value based on an exponential decaying peak hold function using a decay coefficient;
- a compare module configured to:
- 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 to obtain attenuated first and second audio signals, based on whether the peak comparison signal exceeds a predetermined limit threshold and in accordance with an attenuation factor, wherein the attenuation factor is a ratio of the predetermined limit threshold and a magnitude of the peak comparison signal, and
- transmit the attenuated first and second audio signals to first and second audio destination devices, respectively, to produce sound audible to a user.
8 more elements
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,
- calculate a first peak value of the first audio signal and a second peak value of the second audio signal, and
- calculate the first peak value or the second peak value based on an exponential decaying peak hold function using a decay coefficient;
- a compare module configured to:
- 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;
- a limiter module configured to:
- selectively attenuate the first and second audio signals to obtain attenuated first and second audio signals, based on whether the peak comparison signal exceeds a 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;
- and
- an equalizer module configured to modify the first and second audio signals or the attenuated first and second audio signals before the first and second audio signals or the attenuated first and second audio signals are transmitted to the first and second audio destination devices.
9 more elements
Dependencies are inferred from the claim text.