Title:
An electronic key system, an in-vehicle device, and a portable machine
Document Type and Number:
Japanese Patent JP6036638
Kind Code:
B2
Abstract:
An electronic key system includes an onboard apparatus and a portable apparatus. The electronic key system establishes wireless communication with a secret key common between the onboard apparatus and the portable apparatus, and authenticates the portable apparatus registered as the portable apparatus of an authorized user. The portable apparatus includes a portable apparatus code transmitter that transmits a portable apparatus code. The onboard apparatus includes an onboard code transmitter that transmits an onboard code. The onboard apparatus further includes a portable apparatus code receiver, and an onboard-side key generation portion. The portable apparatus further includes an onboard code receiver, and a portable-apparatus-side key generation portion.
Inventors:
Takeshi Kato
Hiroki Tokunaga
Hiroki Tokunaga
Application Number:
JP2013216628A
Publication Date:
November 30, 2016
Filing Date:
October 17, 2013
Export Citation:
Assignee:
株式会社デンソー
International Classes:
H04L9/08; B60R25/24; E05B49/00; H03J9/02; H04L9/32; H04Q9/00
Domestic Patent References:
| JP10143695A | ||||
| JP2011101118A | ||||
| JP2000286830A | ||||
| JP2013157893A |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo
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