PCMICA CARD

Abstract

An exemplary PCMCIA card includes a USB interface, a PCMCIA interface, an interface switch, a first control circuit, a second control circuit, and a memory module. The first control circuit is connected between the PCMCIA interface and the memory module. The second control circuit is connected between the USB interface and the memory module. The interface switch is connected between the first control circuit and the second control circuit. The interface switch is changed between a first state, and a second state. When the interface switch is in the first state, one of the USB interface and the PCMCIA interface is selectively used. When the interface switch is in the second state, both the USB interface and the PCMCIA interface are used.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a PCMCIA card in accordance with a preferred embodiment of the present invention;

FIGS. 2 and 3 are isometric views of the PCMCIA card of FIG. 1, but viewed from different aspects; and

FIGS. 4 to 6 are schematic views of the PCMCIA card of FIG. 2, being used in different situations.

Claims

1. A PCMCIA card comprising: a USB interface;a PCMCIA interface;a memory module;a first control circuit connected between the PCMCIA interface and the memory module;a second control circuit connected between the USB interface and the memory module; andan interface switch connected between the first control circuit and the second control circuit, the interface switch switchable between a first state and a second state, wherein when the interface switch is in the first state, one of the USB interface and the PCMCIA interface is capable of being selectively used; when the interface switch is in the second state, both the USB interface and the PCMCIA interface are capable of being used.

2. The PCMCIA card as claimed in claim 1, wherein the memory module comprises a plurality of flash memories installed therein.

3. The PCMCIA card as claimed in claim 1, further comprising an indicator indicating working mode of the memory module.

4. The PCMCIA card as claimed in claim 1, wherein the PCMCIA interface is connected with a PCMCIA slot of a notebook computer.

5. The PCMCIA card as claimed in claim 1, wherein the USB interface is connected to a plug of a USB cable.

6. The PCMCIA card as claimed in claim 4, wherein the USB interface is connected to a desktop computer via a USB cable which allows the notebook computer and the desktop computer to exchange data therebetween when the interface switch is in the second state.

7. The PCMCIA card as claimed in claim 1, wherein the USB interface is connected to a desktop computer via a USB cable which allows the PCMCIA card to act as a storage device for the desktop computer when the interface switch is in the first state.

8. The PCMCIA card as claimed in claim 1, wherein the USB interface is connected with a USB slot of a computer.

9. A PCMCIA card comprising: a first interface;a second interface;a memory module;a first control circuit controlling data access between the first interface and the memory module;a second control circuit controlling data access between the second interface and the memory module; andan interface switching controlling the PCMCIA card in a co-working mode or a selective working mode, in the co-working mode, the first interface and the second interface used at the same time, in the selective working mode, the first interface or the second interface selectively used.

10. The PCMCIA card as claimed in claim 9, wherein the first interface is a USB interface, the second interface is a PCMCIA interface.

11. The PCMCIA card as claimed in claim 10, wherein the interface switch is switchable between a first state and a second state, when the interface switch is in the first state, one of the USB interface and the PCMCIA interface is selectively used; when the interface switch is in the second state, both the USB interface and the PCMCIA interface are used at the same time.

12. The PCMCIA card as claimed in claim 9, wherein the memory module comprises a plurality of flash memories installed therein.

13. The PCMCIA card as claimed in claim 9, further comprising an indicator indicating working mode of the memory module.