KR200263334Y1 - Memory expansion apparatus using Earphone Socket of cellular phone - Google Patents

Abstract

The present invention relates to a memory expansion device using an earphone socket of a mobile phone, and more specifically, to download various information from a general computer or a network so as to add various additional functions using an external memory device. The present invention relates to a memory expansion device using an earphone socket of a mobile phone that can be used.

The purpose of the present invention is to install a separate memory pack to satisfy the needs of various communication services of users and provide more contents. It is to provide a memory expansion device using a earphone socket of a mobile phone that can download learning materials such as English or English online and use the mobile phone online or offline.

The configuration of the present invention for achieving the above object, in the mobile phone is equipped with an earphone socket capable of voice communication and data transmission and reception, the earphone connector 240 that can be connected to the earphone socket 180 of the mobile phone and ; A USB interface unit 230 for controlling communication between the mobile phone, the earphone connector, and the USB method; A memory 210 for storing information transmitted and received through the USB interface unit 230; Characterized in that the control unit 220 for controlling the storage and output of information transmitted and received through the USB interface unit 230.

In addition, it is preferably characterized in that it further comprises a USB cable which is connected to the USB port of the general computer and can perform a USB communication.

Description

Memory expansion apparatus using Earphone Socket of cellular phone

The present invention relates to a memory expansion device using an earphone socket of a mobile phone, and more specifically, to download various information from a general computer or a network so as to add various additional functions using an external memory device. The present invention relates to a memory expansion device using an earphone socket of a mobile phone that can be used.

The mobile communication system is composed of a mobile station (hereinafter referred to as a mobile phone), a base station, a base station controller, and a mobile switching center, among which a mobile phone is a digital cellular network (DCN) and a personal mobile communication service (PCS). The base station changes the signal format between the mobile terminal and the base station controller so as to be suitable for the wireless link and the wired link. The base station controller serves as a means of access between each element of the base station and the cell operator. It performs monitoring functions such as base station operation management, service status management of hardware and software in base station, resource allocation and configuration for call traffic, information collection on base station operation, base station operation, monitoring and sub-device related to failure. . The mobile switching center then configures an access point for user traffic between the base station controller management and the mobile communication network and the mobile switching network of the general telephone network or the same mobile communication system.

In general, a mobile phone is simply a bar-shaped bar shape, a flip-type like a lid attached to a bar-shaped keypad part, and a folding type to separate and fold the liquid crystal display (LCD) part and the keypad part of the terminal. In recent years, there has been a watch phone that has a terminal in the form of a watch.

That is, as shown in FIG. 3, the mobile phone receives an RF (Radio Frequency) 110 for adjusting the signal received through the antenna to an appropriate level by RF modulation, and receives the RF signal output from the RF unit 110. Demodulate the audio data, video data and various information data on the carrier, and then convert the demodulated audio data, video data and various information data into digital signals, and decode and output the converted digital signals and display control signals. Modem and CPU (120) for outputting, LCD (Liquid Crystal Display; 130) for displaying to the user after receiving a display control signal from the modem and CPU 120, various numeric buttons, symbol buttons and other function buttons Keypad 140 is used to input necessary information to the communication terminal consisting of, and the digital audio signal output from the modem and the CPU (120) CODEC 150 for receiving and converting into an analog signal and outputting the signal; audio unit 160 for amplifying the analog audio signal output from the CODEC 150 and converting the signal into a mechanical signal that can be heard by the user. And a video unit 190 for outputting the video signal output from the CPU 120 to the LCD 130, a memory unit 195 including a general ROM and an SRAM, and a bottom surface of a mobile phone. Located when the car is connected to the external USB protocol via the earphone socket 180 and the earphone socket 180 consisting of a four-pole so as to be used as a hands-free or hands-free connector that can input and output power and various data to and from the outside It consists of a USB interface 170 to control.

Such mobile phones were initially used only for voice communication, but recently, they are also used for data communication. Examples of such mobile phones are mobile electronic devices using mobile phones, which provide access to the Internet without a computer and location information service. It is also used for mail processing and electronic commerce (securities, tickets, train ticket reservations, etc.).

In addition, recently, I am listening to AM or FM radio broadcasts using a mobile phone or downloading MP3 music from the Internet, storing it on my mobile phone and playing it when needed. Mobile phones are being developed in various forms.

However, mobile phones have a built-in memory device in the production of mobile phones and use MP3 files downloaded from the Internet and PC communication using receptacles, but the capacity of the memory is limited so that many users can satisfy various needs. There is a problem in that it is not possible to provide content, and also have to go to each cell phone dealer in order to change existing stored information.

The present invention has been made to solve the above problems, the purpose of the present invention is to install a separate memory pack to satisfy the needs of users various communication services and provide more content as a built-in memory of the mobile phone The memory expansion device using the earphone socket of the mobile phone, which can download large-capacity games, video music files, pictures, video picture files, or learning materials such as English, and use them online or offline. In providing.

The configuration of the present invention for achieving the above object, in the mobile phone is equipped with an earphone socket capable of voice communication and data transmission and reception, the earphone connector 240 that can be connected to the earphone socket 180 of the mobile phone and ; A USB interface unit 230 for controlling communication between the mobile phone, the earphone connector, and the USB method; A memory 210 for storing information transmitted and received through the USB interface unit 230; Characterized in that the control unit 220 for controlling the storage and output of information transmitted and received through the USB interface unit 230.

In addition, it is preferably characterized in that it further comprises a USB cable which is connected to the USB port of the general computer and can perform a USB communication.

1 is a schematic configuration diagram of a memory expansion device using an earphone socket of a mobile phone according to the present invention,

Figure 2 is a state diagram of the memory expansion device using the earphone socket of the mobile phone according to the present invention,

3 is a schematic control block diagram of a conventional mobile phone.

<Description of Symbols for Main Parts of Drawings>

100: mobile phone 180: earphone socket

200: memory expansion unit 210: memory

220: control unit 230: USB interface unit

240: earphone connector

Hereinafter, a memory expansion apparatus using an earphone socket of a mobile phone of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic configuration diagram of a memory expansion device using an earphone socket of a mobile phone according to the present invention, Figure 2 is a state of use of the memory expansion device using an earphone socket of a mobile phone according to the present invention, USB port and Connected to the earphone connector 240 of the memory expansion device that can be connected to the USB method, the USB interface unit 230 for controlling communication with the earphone connector 240, and the transmission and reception through the USB interface unit 230 The memory 210 stores the stored information, and the controller 220 controls the storage and output of the information transmitted and received through the USB interface 230.

The earphone jack 240 serves as a data line (Vdd pin, Gnd pin, Data (+), Data (-), etc.) to communicate with a general computer. At this time, the computer may transmit and receive data by installing and executing software capable of recognizing the memory expansion apparatus 200 of the present invention, and automatically recognizing through a communication port by installing the software once. Will be done.

In other words, when the memory expansion device 200 of the present invention is connected, the computer is switched to the USB host mode to automatically load the already stored information through the control unit 220 and the memory expansion. The device 200 enters the USB slave mode and can also check the amount of stored memory and the amount of available memory.

In addition, the memory 210 is to vary the capacity of the user to select a wide range, the size is the same as the thickness of the mobile phone is made easy to carry, and also the earphone socket 180 of the mobile phone 100 ) Is usually used as a hands-free use of the earphone socket, if necessary, it can be connected to the memory expansion device 200, the earphone socket 180 can be used as a combined.

The present invention configured as described above, first, the software for recognizing the memory expansion device 200 of the present invention is installed, the memory expansion of the present invention through a USB cable to the USB port of the computer connected to the outside Internet The device 200 is connected to the device 200 to receive various data such as games, video / music files, photos, video picture files, or learning data files such as English, which are downloaded and stored in the memory 210.

That is, the computer enters the USB host mode and the memory expansion device 200 operates in the USB slave mode to download and store various data through the computer.

When the storage of the necessary information is completed as described above, the completion of the storage is confirmed through the monitor of the computer. At this time, it is connected to the control unit 220 on one surface of the memory expansion device 200 can display the status of data transmission and reception and the completion or reception of the amount of available memory using a computer monitor or a mobile phone LCD. May be easily implemented.

Thereafter, the memory expansion device 200, which has been stored, is connected to the earphone socket 180 of the mobile phone. The earphone socket 180 is generally installed on the upper left and right sides of the conventional mobile phone as shown in FIG. 3 or the upper side of the mobile phone, and the earphone socket 180 installed in the memory expansion device 200 is provided. It is preferable to insert and use.

When the memory expansion device 200 is connected, the information stored in the memory 210 may be loaded and used through a program embedded in the mobile phone 100.

That is, in this case, the USB interface 170 of the mobile phone 100 is in the USB slave mode, and the memory expansion device 200 is in the USB host mode to transmit data.

In this case, it is possible to receive and store a large external file wirelessly through the modem 120 of the mobile phone 100, or to mount a camera on the mobile phone to capture and store still images or moving images. Of course it will.

As described above, according to the present invention, by installing a separate memory device in the earphone socket of the mobile phone, it is possible to provide a special service to the mobile phone buyer by providing content that satisfies the needs of various users, and also improves the function of the mobile phone. It is also effective to expand the marketability of mobile phones.

Claims (2)

In a mobile phone equipped with an earphone socket for voice calls and data transmission and reception, An earphone connector 240 that can be connected to the earphone socket 180 of the mobile phone; A USB interface unit 230 for controlling communication between the mobile phone, the earphone connector, and the USB method; A memory 210 for storing information transmitted and received through the USB interface unit 230; Memory expansion device using the earphone jack of the mobile phone, characterized in that consisting of a control unit 220 for controlling the storage and output of information transmitted and received through the USB interface unit 230. The method of claim 1, Memory expansion device using the earphone socket of the mobile phone, characterized in that further comprises a USB cable that is connected to the USB port of a general computer for USB-type communication.