Portable device registration system and portable device registration method
US9407436B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jan 18, 2013 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jan 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An immobilizer ECU generates an encryption key using key generating logic, from a SEED code included in an ID code signal sent from an electronic key, and registers the encryption key to the immobilizer ECU. The immobilizer ECU receives an instruction from a registration and deletion tool and sends, to the electronic key, a deletion request signal that requests the deletion of the SEED code. The electronic key deletes the SEED code from the electronic key if a deletion request signal has been received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.