Reception range varying system, vehicle control device, and portable device
US11256248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Nov 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/283
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A reception range varying system includes a vehicle control device and a portable device. The reception range varying system determines whether a position where the portable device exists is within an execution range which enables execution of vehicle control over the portable device, or within a reception range but outside the execution range, and narrows the reception range so that the portable device is positioned outside the reception range while maintaining the reception range at a size equivalent to or larger than the execution range, on the basis that the position where the portable device exists is within the reception range but outside the execution range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.