Differential data transferring system and method using three level voltages
US8284848B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2010 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Jan 7, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/49
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A differential data transferring system and method uses three level voltages to simultaneously transfer three signals (for example, two data signals and one clock signal) across two transfer line sets (i.e., four transfer lines). Therefore, the differential data transferring method increases transferring efficiency by using fewer transfer lines. Also, according to the differential data transferring system and method, one of two transfer lines forming a transfer line set is controlled to a middle voltage level, while the other transfer line is controlled to either a high voltage or a low voltage. Accordingly, the voltage difference between the two transfer lines may be maintained at a constant amplitude. Additionally, the difference between first and second dividing voltages DC1 and DC2, which are used for generating a reference output data, is controlled to maintain a constant amplitude. Therefore, the differential data transferring system and method may provide improved operation reliability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.