Multi-function apparatus and control method thereof
US7640442B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2007 |
| Grant date | Dec 29, 2009 |
| Priority date | — |
| Expiry date | Aug 19, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/0096
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A multi-function apparatus having a wider variety of uses and easily employed when carrying a USB cable only without having a power source cord. The apparatus includes means for detecting a connection between the USB interface and the PC, means for detecting a connection to the power line, and control means for selecting a function depending on a detected state of the connection between the USB interface and PC and a detected state of the connection to the AC power line. All the functions in the multi-function apparatus are operable in a connected state of the AC power line to the AC power source, while even in an unconnected state of the AC power line to the AC power source, if the USB interface is connected to the PC, a possible operation is enabled using electric power of 5 V at 500 mA supplied from the PC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.