Electrical device

Details Electrical device Electrical device

2005-02-01

2005-02-01

Hindi, Nabil (Department: 2655)

Dynamic information storage or retrieval

Condition indicating, monitoring, or testing

Including radiation storage or retrieval

Reexamination Certificate

active

06850471

ABSTRACT:
An electrical device, in particular a car radio, allows more user-friendly checking of access authorization is described. The electrical device includes a disc drive for a storage medium, a read device being provided for reading data stored on the storage medium placed in the disc drive. Device-specific data is stored in a memory assigned to the electrical device. Data read from the storage medium is compared with the device-specific data. The electrical device is only rendered operational if the data that has been read matches the device-specific data.

REFERENCES:
patent: 5220549 (1993-06-01), Yanagidate
patent: 6118744 (2000-09-01), Sturgeon et al.
patent: 0 525 895 (1993-02-01), None
patent: WO 9404972 (1994-03-01), None

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