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VEHICLE TELEMATICS SATELLITE DATA TRANSCEIVER UTILIZING FM RADIO CIRCUITRY

  • US 20070281626A1
  • Filed: 06/05/2006
  • Published: 12/06/2007
  • Est. Priority Date: 06/05/2006
  • Status: Abandoned Application
First Claim
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1. A transceiver for transmitting and receiving RF signals, comprising:

  • first RF front-end receiver circuitry comprising FM mixer circuitry capable of receiving standard FM radio broadcast RF signals and converting the FM radio broadcast RF signals to an intermediate frequency, said first RF front-end receiver circuitry being configured to receive RF data signals at frequencies greater than 108 MHz and convert the RF data signals to intermediate frequency (IF) data signals;

    signal processing circuitry coupled to said first RF front-end receiver circuitry, said signal processing circuitry comprising at least one DSP core configured to receive the IF data signals from said first RF front-end receiver circuitry and demodulate the IF data signals to extract data, said at least one DSP core also being configured to modulate data to be transmitted into modulated transmit data signals, said signal processing circuitry further comprising at least one audio output configured to provide at least one of digital and analog audio output; and

    RF transmitter circuitry coupled to said signal processing circuitry and comprising a mixer, an RF power amplifier, and at least one filter, wherein said RF transmitter circuitry is configured to receive the modulated transmit data signals from said processing circuitry, convert the modulated data signals in the mixer into modulated data signals having a frequency greater than 108 MHz, amplify and filter the converted modulated transmit data signals, and transmit the filtered and amplified modulated data transmit signals.

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