Electronic key registration system

US9714004B2 · kind B2 · utility

Assignees

• Mitsubishi Electric Corporation · JP
• TOYOTA JIDOSHA KABUSHIKI KAISHA · JP

Inventors

• Daisuke Kawamura · San Mateo, US
• Masahiro Arakawa · Ebeye, US
• Masaki Hayashi · Yokosuka, JP
• Hiroaki Iwashita · Kawasaki, JP
• Tetsuya Egawa · Ebeye, US
• Kazunori ARAKAWA · Ebeye, US
• Ryuta Atsumi · Toyota, JP
• Chihiro Tatebayashi · Nagoya, JP

Key dates

• Filing date: Jan 28, 2016
• Grant date: Jul 25, 2017
• Expiry date: Feb 2, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L2209/84
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An electronic key registration system includes an electronic key and a communication master. The electronic key transmits a registration code. The communication master receives the registration code from the electronic key, obtains key information using the registration code, and registers the key information. The registration code is set in accordance with the communication master to which the electronic key is registered. The communication master includes a level determination unit, which determines a key registration security level when the electronic key is registered to the communication master, and a registration execution unit, which obtains the key information using the registration code based on the determined key registration security level and registers the key information to the communication master.