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Wireless radio modem with minimal inter-device RF interference

  • US 5,764,693 A
  • Filed: 06/08/1995
  • Issued: 06/09/1998
  • Est. Priority Date: 11/14/1994
  • Status: Expired due to Term
First Claim
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1. A wireless radio modem for transferring data between a host data processing device and a remote data processing device or a data transmission/reception network station comprising:

  • (a) transmission/reception means for transferring data at radio frequencies between the host data processing device and at least one of the remote data processing device and the data transmission/reception network station; and

    (b) modulation/demodulation means, wherein the modulation/demodulation means comprisesi. means for demodulating data received from the transmission/reception means; and

    ii. means for modulating data generated by the host data processing device;

    wherein the means for demodulating data includes frequency discrimination means for discriminating at a high intermediate frequency digital data signal states expressed in a signal of interest received from the transmission/reception means and the means for modulating data includes a digital signal processor with a waveform transition lookup table for storing a set of precomputed waveform segments that are pieced together by the digital signal processor to form a modulated waveform.

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