Electronic key registration system
US9094382B2 · kind B2 · utility
7Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | Jul 28, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An immobilizer ECU transmits a vehicle ID code and a SEED code, which is read from an electronic key, to a data center online. The data center generates an encryption key from the received SEED code and a first logic, and generates a further SEED code from the encryption key, the vehicle ID code, and a second logic. The immobilizer ECU obtains the further SEED code online from the data center, generates the encryption key from the obtained further SEED code, the vehicle ID code, and the second logic, and stores the encryption key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.