Vehicular emergency reporting device
US9428149B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Nov 18, 2033 |
Classification
- Technology area (CPC —)General
Abstract
A vehicular emergency reporting device includes a voltage step-down unit, an auxiliary power source, a voltage step-up unit, a control unit, an emergency report executing unit, and a switching unit. When a decreased voltage decreased by the voltage step-down unit is lower than an increased voltage increased by the voltage step-up unit, the emergency report executing unit performs an emergency report using the increased voltage as the operation voltage. When the decreased voltage is lower than the increased voltage, the switching unit switches a power supply mode between a first mode in which the increased voltage is supplied to the control unit and the emergency report executing unit and a second mode in which an auxiliary power source voltage is supplied to the control unit and the emergency report executing unit without being increased by the voltage step-up unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.