Patent ID: 7561881

Claim:
An air based position finding and communication system comprising: an airplane, or a helicopter or a balloon based receiver for reception and demodulation of position finder signals to position finder baseband signals, the received position finder signals are received from a signal transmitter; one or more airplane or helicopter or balloon based cameras, phones, microphones, data signal generation devices, storage devices and a first processor for processing, recording or storing of signals obtained from one or more cameras, phones or microphones or data signal generation devices; a second processor for receiving and processing first processor processed signals and for providing cross-correlated shaped in-phase and quadrature-phase baseband signals; a third processor for receiving and processing first processor processed signals and for providing filtered orthogonal frequency division multiplex (OFDM) baseband signals, the cross-correlated and said OFDM signals are distinct signals; a fourth processor for receiving, processing, and selecting said position finder baseband signal with said cross-correlated signals or with said filtered OFDM signals; a selector for receiving and providing the fourth processor selected signal to a modulator; a signal modulator for modulating the selected signal and for connecting the modulated signal to a signal transmitter for signal transmission, the transmitter comprises a first amplifier operated in a first Radio Frequency (RF) band and a second amplifier operated in a second RF band, the first and second bands are distinct bands; and a communication receiver for reception, demodulation, and processing of a transmitted signal to a demodulated signal and for providing said demodulated signal to an emergency unit or to one or more subscriber units or to both emergency and subscriber units.