Enhanced ground bounce immunity on USB type-C power delivery communication
US10261929B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2016 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Mar 18, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/266
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for enhancing ground bounce immunity of cables such as USB type-C cables. More specifically, in certain embodiments, ground bounce immunity is enhanced by making use of alternate modes of operation of cables conforming to the USB 3.1 specification to achieve a higher power over a cable that conforms to the USB 3.1 voltage drop specification requirements on the ground signal paths when the cable is operating at normal power levels (i.e., at a power level supported by the USB 3.1 specification). In certain embodiments, ground bounce immunity is enhanced by making use of alternate modes of operation of USB 3.1 type cables and standard use USB3.1 power delivery negotiation protocol to allow a host and end device to negotiate higher power than what would normally conform to the USB 3.1 specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.