Composite compact flash card
US7278583B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 2005 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Dec 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K1/141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A composite Compact Flash card includes a storage unit, a slot, a mechanical switch, a switch detecting circuit and a control unit. The slot is used for plugging an external small-sized memory card therein. The mechanical switch is electrically connected to the slot for selecting one of the storage unit and the small-sized memory card to store data therein and generating a switching signal according to the selecting result. The switch detecting circuit is electrically connected to the mechanical switch, and generates a control signal in response to the switching signal. The control unit is electrically connected to the storage unit, the slot and the switch detecting circuit for controlling an accessing operation of the storage unit or the small-sized memory card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.