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Hdd control apparatus

  • US 20060291809A1
  • Filed: 09/30/2004
  • Published: 12/28/2006
  • Est. Priority Date: 10/03/2003
  • Status: Abandoned Application
First Claim
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1. A hard disk drive (HDD) control apparatus, comprising:

  • a means for connecting the HDD control apparatus to a navigation system;

    a means for connecting the HDD control apparatus to an HDD;

    a means for connecting the HDD control apparatus to a second system;

    a decompression unit that decompresses data read from the HDD and transmits the resultant data to the second system; and

    a control unit that writes or reads data in or from the HDD in response to a command sent from the navigation system, that reads data from the HDD in response to a command sent from the second system, and instructs the decompression unit to decompress the data and transmit the resultant data to the second system, and that when the command to access the HDD is issued concurrently from the navigation system and the second system alike, arbitrates the commands through time sharing.

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