Transmitting multiple differential signals over a reduced number of physical channels
US9537644B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2013 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Apr 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/0272
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Transmitting a bidirectional, virtual differential signal in addition to other differential signals over physical communication channels. Thus, four signal lines can provide three differential signals, where the virtual differential signal is bidirectional. The virtual differential signal can be provided over one or more of the other physical communication channels. Additional configurations allow for providing a bidirectional DC power supply. Additional configurations allow for providing DC power in addition to data over a reduced number of lines. Selective switching of signal lines can allow backward and forward interoperability with other standard interfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.