Indoor GPS is a Geolocaliszation that penetrates indoor
- emitters emit waves that penetrate indoor such as LW or UHF
- these waves carry a synchonised emission time, and their place of emission
- receivers listen to at least three different emitters
- and deduct their own location
an alternative to satellite based GPS
by verifying anbd registering the delivery place
by gelocalising the receiving payment terminal
and scrambling the misleading signals
monitors will have scrambled any sucessor to a wrong signal
patents US12066558B2 US20220268874A US20220272080A1 US12604196B2 FR3120130B1