Patent ID: 6512921
Filing Date: 2003-01-28
Classification: H04B

Abstract:
In a satellite communication system comprising at least one geostationary broadband satellite and at least one narrowband satellite, communication apparatus suitable for location on a vehicle for providing communications between said satellites and said vehicle comprising in combination:a first antenna configured to receive first carrier signals carrying first data from said broadband geostationary satellite; a first demodulator connected to said first antenna and configured to demodulate said first carrier signals to generate first data signals; a second antenna configured to receive second carrier signals carrying second data from said narrowband satellite; a second demodulator connected to said second antenna and configured to demodulate said second carrier signals to generate second data signals; a source of third data signals embodying third data; a modulator responsive to said third data signals for generating third carrier signals carrying said third data for transmission by said second antenna; a first utilization system configured to utilize said first data; a second utilization system configured to utilize said second data; and a router connected to route said first data signals to said first utilization system, to route said second data signals to said second utilization system and to route said third data signals to said modulator.