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Method and apparatus for controlling country specific frequency allocation

  • US 5,940,509 A
  • Filed: 11/18/1997
  • Issued: 08/17/1999
  • Est. Priority Date: 06/30/1995
  • Status: Expired due to Term
First Claim
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1. A method for transmitting an encrypted data set to a remote user, said remote user having a unique identifier code, the method comprising the steps of:

  • receiving said identifier code from said remote user over an unsecure communication link;

    selecting a data set appropriate for said remote user;

    encrypting said data set using a predefined encryption algorithm with said identifier code as an encryption key; and

    transmitting said encrypted data set to said remote user over said unsecure communication link.

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