Electronic device and method of software or firmware updating of an electronic device

Electronic device and method of software or firmware updating of an electronic device

  • CN 102,105,883 A
  • Filed: 06/16/2009
  • Published: 06/22/2011
  • Est. Priority Date: 06/23/2008
  • Status: Active Application
First Claim
Patent Images

1. electronic installation comprises:

  • Storage drive unit (FD) is used for reading from storer and comprises encrypted version this shop (X1, subregion head X2) and with encrypted version this shop (X '"'"' 1, X '"'"'

         2) write store that upgrades;

    Update agent unit (UA) is used to control the software or the firmware update of electronic installation;

    Disposable programmable memory (OTP), be used to store first value (R, R0);

    AndEncryption/decryption element (EDU) is used for that (R R0) comes the subregion head that is stored in the storer is decrypted, to obtain the version number of subregion head based on first value that is stored in described disposable programmable memory (OTP);

    Wherein said update agent unit (UA) is applicable to that the version number that will be obtained and version number from software or firmware update compare, with the version number that determines described software or firmware update whether greater than the version number that is obtained;

    If wherein carried out renewal, then increase progressively described first value (R) and it is stored in the described disposable programmable memory (OTP);

    Wherein said encryption/decryption element (EDU) is applicable to the version number of encrypting described software or firmware update based on new first value (R);

    AndWherein storage drive unit (FD) is applicable to and will has the new subregion head write store of the encrypted version this shop of renewal.

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