Electronic key system for vehicle, and portable device
US10723315B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 21, 2016 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jan 23, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Provided is an electronic key system for a vehicle. The electronic key system for a vehicle includes an in-vehicle device and a portable device and performs a predetermined control process on a vehicle on the basis of verification successfully made between the in-vehicle device and the portable device. When receiving a verification signal, the portable device transmits a response signal in accordance with the verification signal. When an operation detection unit detects a user operation, the portable device transmits an instruction signal for controlling a state of locking of a door of the vehicle. An output level of the response signal from the portable device is lower than an output level of the instruction signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.