| CPC G06K 7/1417 (2013.01) [G06K 2007/10524 (2013.01)] | 20 Claims |

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1. A method for providing acoustic signals, the method comprising:
receiving, at one or more processors, an indication of an acoustic signal initiation action for an imaging device;
retrieving, by the one or more processors based on the indication, an acoustic signal file from a memory of the imaging device; and
causing, by the one or more processors, the imaging device to emit an acoustic signal indicated by the acoustic signal file, wherein the acoustic signal includes a monotonic sweep across a plurality of frequencies that begins at a first frequency and ends at a second frequency that is different from the first frequency.
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