Vehicle safety device with electronically coded access authoriza

Details Vehicle safety device with electronically coded access authoriza Vehicle safety device with electronically coded access authoriza

1995-05-24

1997-01-21

Holloway, III, Edwin C.

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 34082554, 34082572, 307 102, 180287, B60R 2500

Patent

active

055963170

ABSTRACT:
In the new vehicle safety device according to the invention, random code information used to control the release of an electronic drive-away block arrangement consists of a combination of a plurality of partial information generated separately in operationally essential vehicle units which are separated from one another. The partial information is combined in a linking unit connected with these units for total random code information. Even after a code data exchange protocol has been intercepted by an unauthorized person, the latter, because of the structure of the safety device, can operate the vehicle only by replacing all of these units, which renders such unauthorized use by strangers unattractive because of the manipulations and expense required for this purpose.

REFERENCES:
patent: 5055701 (1991-10-01), Takeuchi
patent: 5146215 (1992-09-01), Drori
patent: 5229648 (1993-07-01), Sues et al.

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