KR20060059370A - External usb storage device which support usb host data exchange and mp3 playing and battery charging and sim card - Google Patents

Abstract

The present invention relates to a portable storage device connected to a mobile phone and having a USB interface, and more particularly, to a USB host function, an MP3 play function, and a mobile phone charging function in an existing USB storage device. In terms of hardware, it has a USB connector, a mobile phone connector, a removable memory interface, supports MP3 play in software, and supports data exchange through the USB protocol. It also features a host USB function to connect all portable USB SLAVE devices.

Using the mobile phone-connected USB storage device of the present invention has the following advantages.

By connecting an ordinary mobile phone to this device, you can store MP3 files on your PC without paying a separate phone bill and insert them into your mobile phone. You can listen to MP3 music through your mobile phone's earphones. Owners can not only exchange data between MP3 devices through PCs, but also by simply plugging each other's MP3 devices into the device in real time while moving on the subway. It is a thin device. When this is possible, music-loving consumers can exchange their MP3 music files freely and easily in real-time at any time in the subway, bus, and other mobile devices.

In addition, the SIM card used in GSM mobile phones is embedded in the USB Host storage device, and when the user connects to a web server when using the wired Internet and logs in, and implements an automatic login function, the user's unique number and information are stored and then the user authentication device Can also be used as.

Then, you can buy a prepaid card and use it as a built-in prepaid card by inserting only the number into the SIM card.

USB HOST, USB SLAVE, USB Protocol, MP3, MP3 play, SIM Card, USB Host controller, USB Slave controller, USB Storage Module (name of the present invention), Mini Kernel / Operating System, RexOS, Linux, WinCE, SymbianOS, Embedded System os

Description

External USB storage device which supports USB host data exchange and mp3 playing and which has USB HOST function which combines existing mobile phone and has USB interface, MP3 decoding, mobile phone charging function and SIM card built-in function. battery charging and SIM card}

1 is an internal block diagram of a conventional USB storage device.

       It consists of the USB connector 21, the flash memory 41, the USB slave controller 30, and the exterior 20. As shown in FIG.

      Figure 2 is a block diagram showing the overall connection block and function of the mobile phone-connected external USB storage device and the mobile phone according to the present invention.

The USB Storage Module control program 11 is a program for controlling the USB Host storage device 24 from the mobile phone. This program should be downloaded in advance before the user uses the present invention through the existing wireless communication network.

Since the wireless Internet mobile software platform 31 does not disclose the terminal internal software by the existing mobile phone terminal developer, an external developer must use such an open platform to attach a new device.

An abstraction layer associated with HAL 32 hardware, a layer that acts as a kind of device driver that runs directly above the operating system.

Mini Kernel / Operating System (33) includes Embedded System OS such as RexOS, Linux, WinCE, SymbianOS.

The hardware device 34 defines a hardware layer to which other peripheral devices such as a vocoder, an RF, and the like inside a mobile phone are attached.

The USB slave controller 35 is a control unit used to control data communication in which a cellular phone is connected to the outside.

The USB / serial and charging connector 36 corresponds to a connector in which data and power connection pins are integrated into one.

Figure 3 is an external appearance and functional block diagram of an external USB host storage device according to the present invention.

The difference from the conventional technology is that the hardware has a USB HOST (39) function, take data from an external device via the USB interface 21 and store it in the flash memory (41) of this unit, when connecting a mobile phone It is possible to exchange MP3 files and other data files, and to store various mobile phone additional services such as text messages and PIM functions on this external device, and to transfer data by plugging this file into a computer.

      It is composed of hardware and software, and controls the USB host controller, charging circuit, and other peripheral devices by using the MCU (Micro Controller Unit) 40.

The mobile phone connection connector 22 is a serial, USB, power supply connector, and 8 pins, 12 pins, 24 pins, etc. are mainly used, and currently, the TTA standardization connector is mainly used.

Here, the data exchange method of this apparatus can be largely three cases.

Legend: A: This USB Host Storage Device

       B: Original Cell Phone

       C: MP3 PLAYER, MP3 device to import music files (Source)

       D: MP3 PLAYER, MP3 device (Destination) to send the final data

Data exchange method

1. A <-> B: USB HOST storage device- Mobile phone data exchange method

2. A <-> C: USB host storage device-MP3 Player data exchange method

                    Move music files from USB source to USB Host storage device.

      3.A-> D: mp3 player- usb host storage device-mp3 player

                    Send music files from USB Host storage device to D MP3 Player.

The present invention relates to a portable external USB HOST storage device that enables the storage of additional service-related data of a mobile phone, and more specifically, adds a USB HOST function in hardware to a conventional USB SLAVE device, and adds a mobile phone charger circuit. Real time port and mobile device USB Slave (mobile phone)-USB Host communication is possible through a mobile phone. Download the data, store it in the unit via USB interface, plug it back into the serial or USB slave port of the mobile phone, get this data from the mobile phone, and use the various additional services on the mobile phone. Is full of text messages, voice messages, etc. When the phone can no longer have enough memory, it acts as a removable external storage medium.

In addition, if the software is loaded on the device to run a specific application, it is a multi-purpose entertainment device can be powered by the charger of the mobile phone, it can be a one-to-one match to the mobile phone.

To date, there is no removable storage device that can be used as a USB host by being matched 1: 1 with a mobile phone and connected to the external data connector of the mobile phone. Therefore, there is no portable storage device that directly exchanges data with the USB protocol by attaching it to a mobile phone. Therefore, this technology development is urgently needed to meet the trend of future digital convergence.

Currently, those who use various CP CP services, such as those who enjoy music and games, have no room for storage when the cell phone memory is full. If the removable device solves this problem, it can be faithfully and conveniently used as a 3.5-inch diskette or hard disk in the existing computer market.

Portable external USB host storage device that enables the USB data communication with the mobile phone of the present invention to achieve the above object is

It is an invention that can receive and send a large amount of data easily and detachably to a mobile phone through a conventional wired internet network instead of a wireless network. The device is characterized by including a USB host, slave, serial-USB data communication, hardware and software modules that enable mp3 music playback.

Hereinafter, the operation of the present invention will be described with reference to the accompanying drawings.

First of all, the same reference numerals are given to the elements of the drawings, even though they are on different drawings, and the same reference numerals are used to describe the operation of the present invention. It is noted that the detailed description is omitted.

Figure 2 is a block diagram of the connection and software configuration and the interior of the mobile phone according to the present invention, a detailed description of the function.

External device 20 is connected to the user's mobile phone 10, the device 20 is provided with a USB communication port 21 and the mobile phone connection terminal 22.

3 shows an external appearance of an external USB host portable device according to the present invention.

The USB host controller 39 is designed to operate as a slave when connected to a host such as a computer, and operate as a USB host when connected to a USB slave such as a mobile phone and an MP3 player. USB Host requires a separate MCU (40).

In more detail the manner in which Mp3 play is performed through the software module of the present invention

In FIG. 2, when the mp3 music file is stored in the flash memory 41, and the user connects the device 24 of the present invention to the mobile phone, first checks the charger of the mobile phone and asks whether or not to charge it, and then charges it. If there is no need to do so, it operates in the normal data exchange mode, and this unit operates by taking the battery of the cellular phone.

A certain program already on the mobile phone (assuming that it has been downloaded in advance through the wireless Internet as a specific application for operating this device) automatically recognizes the connection status of the present invention, and as soon as this device is plugged in automatically. Allow the application program 11 to control the display.

Here, the keyboard input of the mobile phone is received and the MP3 file of the device is driven in the decoding chip of the present invention, or in some cases, only the MP3 music file of the device is decoded and played by using the existing hardware of the mobile phone.

The SIM card 23 connects this unit to a computer USB connection terminal or the like, and stores the user's unique information such as a login ID and password when the user uses the computer. It can be used as a tool to store user specific information when the program is running.

The current Internet environment is used in homes, offices, etc. In an environment where the computers used frequently change, if a specific password and user information is stored in each computer every time the Internet access is inevitably vulnerable to security. If the SIM card 23 is used to remedy this vulnerability, the user can freely use the Internet banking anytime and anywhere if he carries only this portable storage device. In addition, when a GSM mobile phone such as China is used in a country where a low-change GSM mobile phone is used, and a user wants to use a phone used in Korea, such as roaming, a SIM card used in a GSM phone must be mounted. If you provide slots, you can also support SIM cards in CDMA phones. In the future, world phones that support GSM and CDMA simultaneously will appear. Conventional CDMA phones that cannot attach existing SIM cards cannot support SIM cards. However, the invention is possible as an accessory for attaching this to an existing phone. In addition, the newly emerging VOIP prepaid card can be used in the SIM card.

Using the USB host storage device of the present invention has the following advantages.

Connect your mobile phone to your existing wireless network (CDMA, GSM wireless) to transfer MP3 files and other large data files from your wireless content provider to your existing wireless network without having to pass through your wireless network. If you send the data and play it on your mobile phone by inserting it into your mobile phone, you can receive the data much cheaper than receiving data through wireless communication networks (KTF, SKT, LGT). So users can run games, music files, etc. at low cost.

Claims (7)

In an external storage device with a USB interface Portable storage device with USB Host function among devices that are connected directly without a cable through an interface (standard or non-standard connector including power transmission pin) to send data from the mobile phone to the outside The method of claim 1, A charger that supplies power to the phone by connecting to the phone's USB or serial connector In the device including the twill, Applications running on the mobile software platform of the phone (eg WIPI or Brew) The program characterized by controlling the device connected to the connector of the mobile phone Full-featured portable USB host storage device In a device that connects to a mobile phone and plays MP3 music files, A mobile device that runs a program that controls a device connected to a connector of a mobile phone in a mobile software platform (eg, WIPI or Brew) of a mobile phone, and executes a music file of the connected mobile device. The method of claim 1, It is a USB storage device having the mobile phone connector. Portable USB storage device characterized in that The method of claim 1, Portable USB HOST storage device featuring SIM card-equipped devices In the USB storage device connected to the mobile phone for data exchange, SIM A portable device characterized by a device equipped with a card, the SIM card being a wireless inter Unique number storage function for net subscriber authentication and wired internet subscriber authentication and identification. Portable USB storage device, characterized in that used as The method of claim 6, International card prepaid card or VoIP phone prepaid card Portable USB storage device, characterized in that the built-in to use

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