Phison Electronics Corporation

Kian-Leng Lee

Wee-Kuan Gan

A virtual universal serial bus (USB) flash memory storage device with a peripheral component interconnect (PCI) Express interface including a microcontroller connected separately to a flash memory and a PCI Express connecting interface, and the microcontroller has a flash memory interface, a PCI Express interface and a virtual USB module and the virtual USB module includes a USB host and a USB device. If a host gives a USB instruction for saving or reading to the storage device, the USB instruction will be sent to and executed by the virtual USB module and the required data processing for saving or reading will be completed through the flash memory interface and the flash memory. The data in the storage device can be transmitted with a PCI Express standard transmission rate, and the host considers the storage device as a USB device instead of a pure PCI Express device.

Virtual USB flash memory storage device with PCI express interface, controller and method thereof

The present invention discloses a virtual universal serial bus (USB) card reader with a peripheral component interconnect (PCI) Express interface. The card reader includes a microcontroller connected to a PCI Express connecting interface and a memory card connecting interface separately. The microcontroller includes a memory card interface, a PCI Express interface and a virtual USB module. The virtual USB module includes a USB host and a USB device. If a host gives an instruction to a memory card connected to the card reader for storing or reading data, the instruction will be sent to and executed by the virtual USB module. The data in the memory card can be transmitted at a transmission rate up to the USB standard, and the host will consider the card reader as a USB device instead of simply a PCI Express device.

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Hsinchu, Taiwan

Kian-Leng Lee