Headset with auxiliary input(s) for cell phone and/or other devices

摘要

An active-noise-reduction (ANR) headset includes at least one auxiliary connection to an output of at least one device, such as a personal communications, computing, and/or entertainment device. An exemplary headset also includes a primary connection to a two-way radio or public-address system and circuitry for automatically suppressing or muting the volume of an auxiliary input signal relative to that of a primary input signal. Other exemplary features include a headset power supply, a microphone, a microphone preamplifier, and a device-detection circuit. The device-detection circuit selectively couples the power supply to the microphone preamplifier, enabling it to provide audio signals to the microphone input of the auxiliary device.

主权项

1. An automatic noise reduction (ANR) headset or headset assembly for use with an aircraft two-way radio and a mobile telephone, comprising:
a pair of circumaural earcups connected by a headpiece; a speaker associated with at least one earcup; an ANR microphone associated with at least one earcup; a boom microphone extending from one of the earcups and coupled to a preamplifier; a battery connector for connecting a first power source having a first voltage level; a two-way aircraft radio input for connecting a second power source having a second voltage level different from the first voltage level; and control circuitry coupled to the speaker, the ANR microphone, the preamplifier, the battery connector, and the two-way aircraft radio input, wherein the control circuitry generates signals for the speaker to provide automatic noise reduction based on signals from the ANR microphone and selectively couples the preamplifier to receive power from the first power source or the second power source to enable use of the boom microphone with the mobile telephone.