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US 5,844,495 AGranted
Key for operating both motor vehicle and building locks
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorRobert Griessbach
Life of this patent
Estimating the term…
Abstract
A key operable with both motor vehicles and buildings includes a mechanically coded part and a transponder for exchanging an identification code that includes a fixed code and a second code part. The fixed code can be used within the framework of a door-locking system for the building for identifying the key user as the one authorized to enter the building. Both the fixed code and the second code part are used to operate a motor vehicle lock.
Claims11
A key for a motor vehicle and a house, comprising:
- a mechanically coded part;
- a transponder for exchanging an identification code which includes a fixed code and a second code part;
- wherein said fixed code is applied to a door-locking system for a house area in order to identify a key owner as one authorized to enter the house area;
- and
- wherein said fixed code and said second code part are applied to the motor vehicle for operating a motor vehicle lock.
2 more elements
A security system, comprising:
- a motor vehicle lock;
- a building door-lock system for securing a building area;
- a key operable with both the motor vehicle lock and the building door-lock system, said key comprising a mechanically coded part, a memory storing at least a two part identification code including a fixed code part and a second code part, and a transponder for exchanging the identification code;
- wherein both the fixed code part and the second code part operate the motor vehicle lock, and only the fixed code part operates the building door-lock system in order to identify a key owner as one authorized to enter the building area.
1 more element
A key for operating both a motor vehicle lock and a building lock, comprising:
- a mechanically coded part;
- and
- an electronically coded part, said electronically coded part having a particular coding scheme;
- wherein the entire particular coding scheme operates one of the motor vehicle lock and the building lock, and only a portion of the particular coding scheme operates the other of the motor vehicle lock and the building lock.
1 more element
Dependencies are inferred from the claim text.