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Data transfer control device, electronic instrument, and data transfer control method

  • US 20030235310A1
  • Filed: 03/06/2003
  • Published: 12/25/2003
  • Est. Priority Date: 03/20/2002
  • Status: Active Grant
First Claim
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1. A data transfer control device for data transfer through a bus, comprising:

  • a second memory access control circuit which encrypts data transferred from a first bus side in accordance with a second encryption process, and writes the thus-encrypted data to a second memory; and

    a third memory access control circuit which reads the encrypted data that has been written to the second memory, and transfers the thus-read encrypted data to a second bus side where a storage medium is connected.

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