Transmission lines applied to contact free slip rings
US8138849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Aug 15, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B5/263
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A non-contacting rotary interface has a first core with a first pair of balanced transmission lines coupled to the first core and a second core moveable in relation to the first core with a second pair of balanced transmission lines coupled to the second core and configured to receive signals from the first pair of balanced transmission lines. The first pair of balanced transmission lines has a first transmit wire coupled to a first transceiver at a first end of the first transmit wire, a second transceiver coupled to the first transmit wire at a second end of the first transmit wire, a second transmit wire coupled to a third transceiver at a first end of the second transmit wire, and a fourth transceiver coupled to the second transmit wire at a second end of the second transmit wire. The balanced transmission lines may be electrical traces on a circuit board.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.