Side channel access through USB streams
US10042784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2015 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Jul 25, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2205/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system may provide side channel access of a Universal Serial Bus (USB) device using USB streams. The system may include a USB interface with a USB device controller, an internal bus, a logical unit number (LUN) arbiter coupled between the USB controller and the internal bus, and a secondary interface coupled with the LUN arbiter. The system may include a plurality of storage devices coupled to the internal bus. The system may provide access to the storage devices via both the USB device controller and the secondary interface. The LUN arbiter may accept a plurality of USB streams (e.g., storage device access requests) from the USB device controller and at least one additional USB stream (e.g., storage device access request) from the secondary interface. The LUN arbiter may determine a priority of access between USB streams originating from the USB device controller and the secondary interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.