Patent ID: 6154636
Filing Date: 2000-11-28
Classification: H04B

Abstract:
A system of providing a retrievable record of the ""Out,"" ""Off,"" ""On,"" and ""In"" (OOOI) times of an aircraft comprising:a plurality of sensors located throughout the aircraft for sensing routine aircraft conditions and generating parametric data such as received by a flight data recorder;a multiplexer connected to the plurality of sensors for receiving the parametric data from the plurality of sensors and multiplexing the parametric data;a central processing unit positioned within the aircraft and operatively connected to the multiplexer for receiving and demultiplexing a sample of the multiplexed stream of parametric data and demultiplexing the data and calculating the OOOI times of the aircraft;a data store positioned within the aircraft and connected to the central processing unit and operative to accumulate and store the data relating to the calculated OOOI times of the aircraft;a wideband spread spectrum transceiver coupled to the data store, and comprising a transmitter that is operative to download the data relating to the calculated OOOI times of the aircraft over a wideband spread spectrum communication signal;an airport based wideband spread spectrum receiver that receives the wideband spread spectrum communication signal from the aircraft and demodulates the signal to obtain the data relating to the calculated OOOI times of the aircraft.