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Method and apparatus for controlling power supply for speedy acquisition of GPS signal, and GPS receiver having the apparatus

  • US 7,812,765 B2
  • Filed: 11/06/2007
  • Issued: 10/12/2010
  • Est. Priority Date: 06/19/2007
  • Status: Expired due to Fees
First Claim
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1. A method of controlling a power supply of a global positioning system (GPS) receiver, the method comprising:

  • when an external power is detected and prior to completing booting of an operating system (OS) or execution of a navigation program for the GPS receiver, supplying the external power to a GPS power supply unit to supply power to a GPS module and executing a GPS initial information search by the GPS module by enabling the GPS power supply unit using an external power detect signal; and

    when a power switch is turned on, executing a GPS information based communication of the GPS module by executing the OS and a navigation program while the GPS power supply unit is enabled.

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