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Voice, location finder, modulation format selectable Wi-Fi, cellular mobile systems

  • US 20080281585A1
  • Filed: 10/26/2007
  • Published: 11/13/2008
  • Est. Priority Date: 08/03/2005
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a analog to digital (A/D) converter and a first processor for A/D converting and processing a voice signal into a first bit rate processed Orthogonal Frequency Division Multiplexed (OFDM) or Orthogonal Frequency Division Multiple Access (OFDMA) signal;

    a second processor and transmit filter for processing and filtering a voice signal and for providing a second bit rate processed and filtered Time Division Multiple Access (TDMA) signal, wherein said first bit rate has a different rate than said second bit rate;

    a first receiver, first demodulator and a third processor for receiving, demodulating and processing a location finder signal into demodulated processed location finder baseband signal;

    a fourth processor for processing the third processor processed location finder signal with the first or second processor processed signal and for providing fourth processor processed signal to a modulator and transmitter;

    a modulator and a transmitter for modulation and transmission of the selected or combined signal comprising two distinct transmitters operated in separate radio frequency (RF) bands; and

    a receiver for receiving said selected or combined transmitted signal, comprising two antennas for receiving transmitted signal, a second demodulator, receiver filter and receiver processor for demodulation, filtering and processing of received TDMA signal wherein the receive filter for filtering of the TDMA signal is mismatched to the transmit filter of the second bit rate TDMA signal and receive processor provides received baseband mis-match filtered cross-correlated in-phase and quadrature-phase TDMA signal.

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