KR100502715B1 - Battery pack for storing a data - Google Patents

Abstract

The present invention relates to a battery pack capable of storing data and reproducing a music file, comprising: a USB connector connected to a bus defined by USB for transmitting and receiving packet data; A memory module for storing data; A phone interface unit for transmitting and receiving data with the main body of the mobile communication terminal; And a controller configured to store data transmitted from each of the USB connector and the phone interface unit in the memory module, and access and output the stored data.

Description

BATTERY PACK FOR STORING A DATA

The present invention relates to a battery pack of a mobile communication terminal, and more particularly, to a battery pack capable of storing data and reproducing music files.

Mobile communication terminals such as mobile phones have been popularized for reasons of providing a wireless call service to a user as well as providing a wireless Internet service. In addition to the basic functions of wireless communication, the mobile communication terminal supports various functions of consumers by supporting additional functions such as wireless Internet access, games, and cameras.

However, functions developed to meet various needs of consumers, such as cameras, require a large amount of memory for preserving captured images. However, since the memory area of the mobile communication terminal is limited, more shooting is required. It has the disadvantage of not being able to preserve the image.

Therefore, if an accessory for a mobile communication terminal is developed that can support the memory area available to the terminal without expanding the memory area of the mobile communication terminal body, the terminal user's needs can be maintained while maintaining the characteristics of the compact and simple terminal product. I think you can.

In addition, considering the reality that the size of multimedia content data is increasing in size, there is a disadvantage in that an excessive communication fee should be paid when a large amount of data is transmitted through a wireless network. Therefore, there is an urgent need to develop a device capable of receiving a large amount of data directly from a personal computer and interfacing to a terminal without the burden of communication costs.

Accordingly, an object of the present invention is to provide a battery pack of a mobile communication terminal that can be used as an external memory of a mobile communication terminal and can transmit and receive data with a computer system.

Furthermore, an object of the present invention is to provide a battery pack of a mobile communication terminal capable of playing a music file stored in an internal memory and outputting stereo, as well as wirelessly transmitting the played music file.

It is still another object of the present invention to provide a battery pack of a mobile communication terminal capable of receiving and storing a large data file such as a moving picture from a personal computer and interfacing it to the mobile communication terminal body.

A battery pack of a mobile communication terminal according to an embodiment of the present invention for achieving the above object basically includes a plurality of battery cells,

A USB connector connected to a bus defined as USB for transmitting and receiving packet data;

A memory module for storing data;

A main body interface unit for transmitting and receiving data with the main body of the mobile communication terminal;

And a controller configured to store data transmitted from each of the USB connector and the main body interface unit in the memory module, and access and output the stored data.

According to the above-described feature of the present invention, the battery pack can store data files downloaded from the wireless network through the main body interface of the mobile communication terminal, and in some cases, sound source data such as music files and the like from a computer system through a USB connector; You can also download video files.

The present invention further comprises a stereo jack connection for coupling with a microphone;

A codec unit for reproducing a music file stored in the memory module;

And an audio input / output unit for amplifying the audio signal reproduced by the codec unit and outputting the audio signal to the jack connection unit and amplifying the audio signal input through the jack connection unit and outputting the audio signal to the codec unit.

According to this aspect of the invention, the battery pack of the present invention has a feature that can be played through the stereo jack connection by playing music files stored in the memory module.

And a Bluetooth module for modulating the audio signal reproduced by the codec into a wireless signal and transmitting the short-range signal to a wireless signal.

In addition, the battery pack controller of the present invention requests a call connection to the terminal body through the phone interface unit when a call connection request signal is received through the jack connection unit. By such a request, a communication path is formed between the mobile communication terminal body and the battery pack. Accordingly, the user can respond to the call request while listening to music.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that a detailed description of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

First, FIG. 1 illustrates a block diagram of a battery pack 200 around a mobile communication terminal according to an exemplary embodiment of the present invention. 1 illustrates a mobile phone body 100 as an example of a mobile communication terminal, and the mobile phone body 100 may be connected to the multifunctional battery pack 200 according to an exemplary embodiment of the present invention. The battery pack 200 may be connected to the personal computer 300 through a USB connector to be described later. Multifunctional battery pack 200 according to an embodiment of the present invention basically serves to supply the operating power of the mobile phone main body 100, and downloads and stores data from the mobile phone main body 100 and the personal computer 300 It also serves as an external memory. In addition, the battery pack 200 plays a role as an MP3 player that plays and outputs a file stored in a memory when the file is a music file, and also interfaces with a terminal body by accessing the stored file when the file is a video file. .

Hereinafter, the battery pack 200 and its surrounding components will be described in detail with reference to the accompanying drawings.

First, FIG. 2 is a block diagram of a mobile communication terminal main body 100 for data transmission and reception with a battery pack 200 according to an embodiment of the present invention.

Referring to FIG. 1, the RF unit 105 performs radio processing of signals transmitted and received between base stations. For example, the RF unit 105 shifts the baseband transmission signal to a high frequency frequency for radio output (may go through an intermediate frequency conversion step), amplifies it, and wirelessly outputs the antenna through the antenna ANT. A high frequency signal received from the baseband (which may go through the intermediate frequency conversion step) serves to shift the frequency band.

The controller 110 demodulates the radio signal, and modulates the radio signal, and transmits the modulated signal to the RF unit 105. The controller 110 performs a modulation / demodulation operation in a manner preset for mobile communication. For example, the controller 110 may perform a CDMA modulation / demodulation operation such as channel coding / decoding and orthogonal code / decoding. The controller 110 basically controls the overall operation of the terminal based on the control program data stored in the memory 125. For example, if a call is received through the RF unit 105, the state is notified to the battery pack 200, and in response thereto, when a call connection request signal is received through the battery I / F unit 120, the RF unit 105 is received. ) And a currency path is formed between the battery pack 200. In addition, when a file list request stored in the battery pack 200 is received from the user, the file list is transmitted to the battery pack 200, and the file list received in response thereto is displayed on the display unit 130.

Meanwhile, the voice signal processor 115 performs a process including voice encoding on a voice signal input through a microphone (MIC) to transmit the voice signal to the controller 110 or to decode the voice signal for the demodulated voice signal through the controller 110. It may also be output through the speaker (SPK) by performing a process including. The voice signal processor 14 includes a firmware module including an analog circuit such as an amplifier and a filter, and an analog / digital converter, a digital / analog converter, and a voice compression / extension module.

The battery I / F interface 120 is physically connected to the battery pack 200 to be described later to interface data (including command data) between the terminal body 100 and the battery pack 200. The battery I / F unit 120 may basically include a power terminal, a data terminal, and a command terminal. Of course, power line communication may be performed to transmit and receive data.

The memory 125 is divided into a ROM region in which control program data for controlling the operation of the terminal is stored and a RAM region in which data generated during the terminal control operation are temporarily stored, and is controlled by the controller 110.

The display unit 130, which is one of the user interface units, displays text data generated by the controller 110, for example, a file list.

The key input unit 135, which is another user interface unit, includes a plurality of numeric keys and a plurality of function keys for designating dials and addresses, and generates key data for each key button press and transmits them to the controller 110. give. The user can with this key input unit 135, select a music file or a video file stored in the daytime any one battery pack (200) and ask for their reproduction. That is, in the embodiment of the present invention, the key input unit 135 is a key input unit of the terminal body 100 and also a key input unit of the battery pack 200.

Hereinafter, the configuration of the battery pack 200 that can be combined with the terminal body 100 having the above-described configuration will be described in detail with reference to FIG. 3.

First, the phone interface unit 205 interfaces data with the mobile communication terminal body 100. The phone interface unit 205 may also include a command and data terminal separate from the power supply terminal, like the battery I / F unit 120 of the terminal body 100.

The power supply unit 210 is a concept including battery cells and a charge control circuit of a general battery pack, and supplies the operating power of the battery pack 200 as well as the terminal body 100.

The controller 215 generally controls the operation of the battery pack 200 according to a control program stored in the internal memory. For example, the data transmitted from the phone interface unit 205 and the USB connector 220 to be described later is stored in the memory module 225, and the stored data is accessed to access the jack connection unit 240, the USB connector 220, Outputs to either of the phone I / F units 205. The controller 215 may include a codec as a firmware module. The codec decodes and outputs a music file accessed by the memory module 225. Such a codec may be configured as a codec having a hardware configuration, as is already known.

Meanwhile, the USB connector 220 is connected to a bus defined as USB to transmit and receive packet data. That is, the battery pack 200 may download music files or video files from the computer system (PC) through the USB connector 220.

The memory module 225 may be implemented as a flash memory that is currently generalized, and data (camera image, music file, etc.) downloaded through the terminal main body 100 or the USB connector 220 may be stored and may be controlled by the controller 215. Is accessed. The memory module 225 may be replaced with a DRAM or a magnetic memory medium, but is not limited thereto.

The audio input / output unit 235 converts a signal reproduced by the codec into an analog audio signal and amplifies it to output to the jack connection unit 240 to be described later, or amplifies a voice signal input through the jack connection unit, and then amplifies it. Output to codec. The audio input / output unit 235 includes a D / A converter and a plurality of amplifiers and has an output path for stereo processing of the reproduced music file.

The jack connection unit 240 provides an output path of an audio signal and a call voice signal reproduced by being combined with a microphone phone, and provides an input path of a call voice signal through the microphone.

Meanwhile, the multifunction battery pack 200 according to an exemplary embodiment of the present invention further includes a Bluetooth module 230 for short-range transmission by modulating an audio signal reproduced by a codec of the controller 215 into a wireless signal. Although not shown, the multifunction battery pack 200 according to an exemplary embodiment of the present invention may display and display a key input unit having operation buttons (play, stop, forward, and reverse) for selectively accessing music files stored in the memory module 225. It may further comprise means.

Hereinafter, an operation of the battery pack 200 having the above-described configuration and the mobile communication terminal 100 that can be combined with the pack will be described with reference to FIG. 4.

First, FIG. 4 is a flowchart illustrating a signal transmission between the battery pack 200 and the mobile communication terminal main body 100 according to an embodiment of the present invention.

Referring to FIG. 4, first, a mobile communication terminal user may request a list of files stored in the battery pack 200 through the key input unit 135 of the terminal body 100 (operation 400). As the file list request is transmitted to the control unit 110 of the terminal main body 100, the main body control unit 110 requests the transmission of the file list to the battery pack control unit 215 (step 405).

The controller 215 of the battery pack transmits the file list stored in the memory module 225 to the terminal body controller 110 in response to the file list transmission request of the main body controller 110 (step 410). As described above, in order for the battery pack controller 215 to transmit a file list to the main body controller 110, a file such as a music file or a video file must be stored in the memory 225 of the battery pack. Storage of music files and video files may be made through the USB connector 220 as in a general MP3 player or flash memory card. That is, the USB connector 220 of the battery pack 200 may be connected to the USB connector provided in the personal computer 300 and the music file or the video file stored in the PC may be selected and downloaded to the battery pack 200. It is. In addition, the terminal body 100 may download a music file through a wireless network, and the downloaded music file may be transmitted to and stored in the memory 225 of the battery pack 200.

As described above, when a music file or a video file downloaded through a wireless network or a PC is stored in the memory 225 of the battery pack 200, the battery pack controller 225 according to a request of the controller 110 of the main body 100. May transmit the file list stored in the memory 225 to the main body controller 110, and the main body controller 110 may display the transmitted file list on the display unit 130 (step 415). will be.

When the file list is displayed on the display unit 130 of the terminal main body 100, the terminal user selects any one file through the key input unit 135 and commands playback of the file selection (step 420). Then, the main body controller 110 transmits the playback request of the selected file to the battery pack controller 215 (step 425), and the battery pack controller 215 proceeds to step 430 to start playback of the file selected by the user. do.

When the file selected by the user is selected and reproduced in the memory 225, the reproduced data is decoded by the codec of the controller 215, and then converted into an analog signal through the audio input / output unit 235, and amplified by a stereo jack connection unit. It is output through 240.

Accordingly, the user can listen to the music file selected by the user through the jack connection unit 240 in stereo.

Therefore, the user of the terminal body 100 may not only play and listen to music files through the battery pack, but also use the battery pack as an external memory. If the battery pack 200 employs the Bluetooth module 230, the music file played in the memory 225 may be short-range wirelessly transmitted through the Bluetooth module 230. In this case, if another Bluetooth module for receiving a music file to be transmitted wirelessly is mounted in the ear microphone, the user can listen to the music file through the ear microphone equipped with the Bluetooth module.

If the file reproduced and selected by the user is a video file, the video file data accessed by the battery pack controller 215 may be transmitted to the terminal body 100 through the phone interface unit 205. In this case, the control unit 110 of the terminal main body 100 decodes the transmitted video frame and displays it on the display unit 130, so that the user can download the video file downloaded from the personal computer 300 without burdening communication charges. Received from the (200) it will be able to watch the playback.

Meanwhile, in the above-described embodiment of the present invention, a case in which files stored in the memory 225 of the battery pack 200 are played is described. However, in the case of a camera phone, a plurality of camera images may be stored in the memory 225. . The stored camera image may be transmitted to the personal computer 300 through the USB connector 220 or wirelessly transmitted through the terminal body 100. In all these cases, the battery pack 200 is used as an external memory.

In FIG. 4, the case where the music file stored in the battery pack 200 is played is described. However, when the call reception is made while the music file is being played, the call execution process will be described in more detail.

First, when the main body controller 110 determines that the incoming call is being made while playing the music file (step 435), the main body controller 110 propagates the incoming call state to the pack controller 215 (step 440). In response to the propagation of the call reception state, the pack controller 215 also recognizes the call reception state and notifies the user of the incoming state in step 445. As a notification method, the ringing tone may be periodically output through the jack connection unit 240 and may be implemented as a zoom.

In response to the incoming call notification, when the user subsequently presses a call key formed in the microphone, the pack controller 215 recognizes that there is a call connection request from the user (step 450), and then connects the call to the controller 110 of the main body. Request (step 455). Then, the control unit 110 of the terminal main body forms a call path between the terminal main body 100 and the battery pack 200 according to the request of the battery pack control unit 215 (step 460). It is possible to perform a call with the caller through the ear microphone coupled to the jack connection 240 of the 200.

Accordingly, the terminal user can normally respond to a call request from outside while listening to music file playback.

As described above, the present invention has the advantage that the battery pack of the mobile communication terminal can be used as an external memory of the terminal. Since the music file stored in the battery pack can be reproduced and output in the battery pack, the battery pack itself is an audio player. There are also advantages that can be utilized.

In addition, the present invention by adding a USB interface means to the battery pack to enable data transmission and reception with a computer system, there is a convenience that can use the battery pack itself as a portable memory,

Since a large amount of data can be received from a computer system and interfaced to the mobile communication terminal, a large amount of multimedia data can be downloaded and used without a communication fee.

1 is a diagram illustrating a configuration around a battery pack of a mobile communication terminal according to an embodiment of the present invention.

2 is a block diagram of a mobile communication terminal according to an embodiment of the present invention.

3 is a detailed configuration of the battery pack according to an embodiment of the present invention.

4 is a signal transmission flowchart between a battery pack and a mobile communication terminal body according to an embodiment of the present invention.

Claims (5)

delete delete A battery pack of a mobile communication terminal capable of storing data, A connector connected to the bus for transmitting and receiving data; A stereo jack connection for coupling with a microphone; A memory module for storing data; A codec unit for reproducing a music file stored in the memory module; An audio input / output unit for amplifying the audio signal reproduced by the codec unit and outputting the audio signal to the jack connection unit and amplifying the audio signal input through the jack connection unit to the codec unit; A phone interface unit for transmitting and receiving data with the main body of the mobile communication terminal; Storing data transmitted from each of the connector and the phone interface unit in the memory module, accessing and controlling the stored data, and requesting a call connection to the terminal body when a call connection request signal is received through the jack connection unit. And a controller configured to form a communication path between the connection unit and the phone interface unit. The apparatus of claim 3, further comprising: a Bluetooth module for short-range transmission by modulating an audio signal reproduced by the codec into a wireless signal; And a key input unit for inputting a command for accessing data stored in the memory module. The battery pack of claim 3 or 4, wherein the controller transmits and zooms in a file list stored in the memory module according to a request of the mobile communication terminal main body controller.