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Control unit

  • US 20040187035A1
  • Filed: 05/12/2004
  • Published: 09/23/2004
  • Est. Priority Date: 06/12/2001
  • Status: Active Grant
First Claim
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1. A control unit (1) having a microprocessor, a programmable memory, a housing (2) and at least one data line (3, 4) leading out of the housing (2) for connection with an external device for writing and/or reading data to or from the programmable memory, characterized in that the control unit (1) is encapsulated in the housing (2) such that the operability of the control unit (1) is at least partly destroyed when the housing (2) is opened, and the control unit (1) has a check device (5) that checks for authorization a write and/or read access by which data are written to the programmable memory or read therefrom over the data line (3, 4) and causes the data to be read from/written to the programmable memory only in case of a successful check of authorization.

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