Patent ID: 9654609
Date: 2017-05-16
CPC Classifications: H03G,H04B,H04M,H04R

Claim:
1. An accessory device comprising: a housing; one or more extendable and/or rotationally adjustable arms secured to the housing, at least one of the one or more adjustable arms coupled to an audio transducer from a first plurality of audio transducers; an audio module, in communication with the first plurality of audio transducers, for ascertaining distances from at least two of the first plurality of audio transducers to at least two of a second plurality of audio transducers to obtain a transducer-to-transducer path distance profile, wherein the transducer-to-transducer path distance profile is based on at least a distance between a first microphone and a first speaker, a distance between the first microphone and a second speaker, a distance between a second microphone and the first speaker, and a distance between the second microphone and the second speaker; a speaker driving circuit to send higher than audible frequency sound, through at least one audio transducer from the first plurality of audio transducers and the second plurality of audio transducers, at a higher volume than audible sound to raise the higher than audible frequency sound above an ambient noise floor; and a communication interface, coupled to the audio module, for sending the transducer-to-transducer path distance profile to a mobile device.