Electronic device capable of automatically switching between a master mode and a slave mode
US8095714B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Feb 4, 2010 |
| Grant date | Jan 10, 2012 |
| Priority date | — |
| Expiry date | Sep 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/4068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An electronic device, includes a USB interface, a processing unit, a master-slave select triggering circuit, a controlling unit, a selection circuit and a switching circuit. The master-slave selection triggering circuit including an input port, a first output port and a second output port. The master-slave select triggering circuit is used to detect the type of external electronic devices connected to the USB interface, if the external electronic device is a master device, the first and second output port output a slave triggering signal, the controlling unit switches off the switching circuit t and the selection circuit selects the processing unit into slave mode; if the external electronic device is the slave device, the first and second output port output a master triggering signal, the controlling unit switches on the switching circuit and the selection circuit select the processing unit into master mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.