Elevator
US12391517B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2018 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Dec 22, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2225/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The elevator includes an amplifier to amplify an acoustic signal; and an induction loop having looped wires that generate a magnetic field by current output from the amplifier, in which plural wire harnesses forming the induction loop are electrically connected to one another by plural connectors, which the respective wire harnesses have, coupled to one another; and the plural wire harnesses include a first wire harness having a first connector which is connected to the connection line to the amplifier, a second connector which is connected to the connection line to the winding start of the induction loop, and a third connector which is connected to the connection line to the winding end of the induction loop, and an elongated second wire harness which forms at least a part of the looped electric wires and has a fourth connector at one end and a fifth connector at another end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.