Multiple-channel transmission over a single-wire bus
US8509318B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 16, 2009 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Oct 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5416
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods are described that enable concurrent transmission of multiple data signals including clock, synchronization, and power over a single-wire bus between a master device and one or more slave devices. A first transmission channel from the master device to the slave device may modulate the width of periodic pulses between a first voltage level and a second voltage level with respect to a reference potential. A second transmission channel may modulate the amplitude of at least one of the first and second voltage levels to at least one third voltage level. Concurrent communications between a master device and one or more slave devices over a single-wire bus can be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.