use sonar like batman!! :P

Click sound and focus at the same time use the focus for a basic map and fill in the gaps with the audio coming back into the mic.

im guessing you would need to solder hundreds of uni-directional microphones onto the device tho...mebe sterio mic would make a big diference...

used to have a little sonar click timing measing program on minwo called sonarce ...this:


focus range + image mapping + sonar + uberdev = profit?

you get all that working and the army will want it