Acoustic ranging

Details Acoustic ranging Acoustic ranging

2007-10-07

2010-06-01

Tarcza, Thomas H (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Distance or direction finding

With time interval measuring means

Reexamination Certificate

active

07729204

ABSTRACT:
Acoustic ranging may involve determining a distance between a first device and at least one other device using one or more acoustic signals. In an example embodiment, a first device emits a first acoustic signal and then receives the first acoustic signal at a first time. The first device also receives a second acoustic signal at a second time, with the second acoustic signal having been emitted by a second device. The first device ascertains a first value that reflects a difference between the first time and the second time. Responsive to at least the ascertained first value, the first device determines a distance between the first device and the second device.

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