Device for transferring from a memory card interface to a universal serial bus interface

• US 20030233501A1
• Filed: 08/27/2002
• Published: 12/18/2003
• Est. Priority Date: 06/18/2002
• Status: Abandoned Application

• Current Assignee: Kingbyte Information Corp.
• Original Assignee: Kingbyte Information Corp.
• Inventors: Cheng, Tse, Ma, Chung Hsun
• Application Number:
  US10/227,871
• Publication Number:
  US 20030233501A1
• Time in Patent Office: Days
• US Class Current: 710/62
• CPC Class Codes: G06F 13/385 for adaptation of a particular data processing system to different peripheral devices

Abstract

A device is proposed for transferring from a memory card interface to a USB (Universal Serial Bus) interface. There are a universal I/O device able to simulate signals from a memory card interface; a micro controller able to control the universal I/O device to access the data in the memory card and to generate a USB data package; a USB serial interface engine able to transfer the USB data package from the micro controller to a serial data stream; and a USB transfer/receive device able to connect to a USB storage device and to transfer the serial data stream to a USB electrical signal.

Claims

1. A device for transferring from a memory card interface to a USB interface, said device comprising:

a universal I/O device for simulating a signal of said memory card interface;

a micro controller for controlling said universal I/O device to access a data of said memory card interface, and for generating a USB data package;

a USB serial interface engine for transferring said USB data package to a serial data stream; and

a USB transfer/receive device for connecting to a USB storage device, and for transferring said serial data stream into a USB electrical signal.

2. A device according to claim 1 wherein said memory card includes:

a CF (Compact Flash), a Micro Driver, a SD (Secure Digital), a MS (Memory Stock), a MMC (Multimedia Card), and a SM (Smart Media), etc.

3. A device according to claim 1 wherein said micro controller operates steps of:

receiving a command and said data of said memory card interface and transferring said command and said data to said USB data package;

controlling said USB serial interface engine to transfer or receive said USB data package;

executing a USB necessary error manage procedure;

executing an initialization of said USB storage device; and

controlling I/O devices of several I/O ports to commit a specification of said memory card interface.

4. A device according to claim 1 wherein said USB serial interface engine operates steps of:

transferring said serial data stream received by said USB transfer/receive device to said USB data package.

5. A device according to claim 1 wherein said USB transfer/receive device operates steps of:

transferring said USB electrical signal to said serial data stream.

6. A device according to claim 1 wherein said USB storage device contains a USB hard disk, a USB flash disk, a USB floppy disk, and a USB CD-RW, etc.