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Wireless radio modem with minimal interdevice RF interference

  • US 5,619,531 A
  • Filed: 11/14/1994
  • Issued: 04/08/1997
  • Est. Priority Date: 11/14/1994
  • Status: Expired due to Term
First Claim
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1. A wireless radio modem comprising:

  • (a) transmission/reception means for transferring data at radio frequencies between a host data processing device and another device; and

    (b) modulation/demodulation means for demodulating digital data received from the transmission/reception means and modulating data generated by said host data processing device, the modulation/demodulation means including frequency discrimination means responsive to a received radio signal for retrieving baseband information from the received radio signal, wherein the frequency discrimination means includes one or more electronically-coupled piezoelectric phase-shift devices.

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