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Dual mode satellite/cellular terminal

  • US 6,975,582 B1
  • Filed: 03/03/1999
  • Issued: 12/13/2005
  • Est. Priority Date: 07/12/1995
  • Status: Expired due to Fees
First Claim
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1. A dual mode transceiver comprising:

  • a linear modulation receiver adapted to receive linearly modulated TDMA signals from a first remote station over a first TDMA downlink channel having a given bandwidth, said linear modulation receiver being operative to receive constant envelope modulated TDMA signals from a second remote station over a second TDMA downlink channel having the same given channel bandwidth, wherein the constant envelope TDMA signals are an approximation of said linearly modulated TDMA signals, and wherein the first and second TDMA downlink channels have time slots of equal duration and include the same number of bits; and

    a transmitter that transmits constant envelope modulated TDMA signals over an uplink channel to said first and second remote stations.

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