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GPS with mask ROM , control IC of the GPS and method for implementing the same

  • US 20080024362A1
  • Filed: 11/20/2006
  • Published: 01/31/2008
  • Est. Priority Date: 07/25/2006
  • Status: Active Grant
First Claim
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1. A global positioning system (GPS), comprising:

  • a control unit comprising a microprocessor and a mask read-only memory (ROM) storing reference information;

    a GPS radio-frequency (RF) processing circuit coupled to the control unit for receiving an RF signal, transforming the RF signal into a base-band or an intermediate frequency signal and transmitting the base-band or the intermediate frequency signal to the control unit; and

    a first storage unit coupled to the control unit for temporally storing a program code;

    wherein the microprocessor executes the program code and refers to the reference information to achieve global positioning.

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