Non-contact signal and power transmission apparatus
US6384587B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Mar 1, 2001 |
| Grant date | May 7, 2002 |
| Priority date | — |
| Expiry date | Mar 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0034
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Non-contact signal transmission apparatus provides signal transmission between a main unit and an auxiliary unit via electromagnetic induction. A set of power cores having hollow sections are provided as a pair at corresponding positions of the main unit and the auxiliary unit. A wire is wound around each of the power cores as power coils for feeding power from the main unit to the auxiliary unit. At least one set of signal cores are provided as a pair at corresponding positions of the main unit and the auxiliary unit. A wire is wound around each of signal cores as signal coils transmitting signals between the main unit and the auxiliary unit. The signal coils are arranged in hollow sections of the power cores.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.