WO2004112268A1 - Apparatus for supplying multimedia data processing - Google Patents

Apparatus for supplying multimedia data processing Download PDF

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Publication number
WO2004112268A1
WO2004112268A1 PCT/KR2004/001004 KR2004001004W WO2004112268A1 WO 2004112268 A1 WO2004112268 A1 WO 2004112268A1 KR 2004001004 W KR2004001004 W KR 2004001004W WO 2004112268 A1 WO2004112268 A1 WO 2004112268A1
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WO
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Application
Patent type
Prior art keywords
mobile communication
communication device
data
unit
module
Prior art date
Application number
PCT/KR2004/001004
Other languages
French (fr)
Inventor
Dae-Young Kim
Jun-Won Lee
Original Assignee
Nable Communications Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3805Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving with built-in auxiliary receivers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72522With means for supporting locally a plurality of applications to increase the functionality
    • H04M1/72527With means for supporting locally a plurality of applications to increase the functionality provided by interfacing with an external accessory
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/253Telephone sets using digital voice transmission
    • H04M1/2535Telephone sets using digital voice transmission adapted for voice communication over an Internet Protocol [IP] network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72522With means for supporting locally a plurality of applications to increase the functionality
    • H04M1/72525With means for supporting locally a plurality of applications to increase the functionality provided by software upgrading or downloading
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72522With means for supporting locally a plurality of applications to increase the functionality
    • H04M1/72527With means for supporting locally a plurality of applications to increase the functionality provided by interfacing with an external accessory
    • H04M1/7253With means for supporting locally a plurality of applications to increase the functionality provided by interfacing with an external accessory using a two-way short-range wireless interface
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers; Analogous equipment at exchanges
    • H04M1/72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
    • H04M1/725Cordless telephones
    • H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status
    • H04M1/72522With means for supporting locally a plurality of applications to increase the functionality
    • H04M1/72544With means for supporting locally a plurality of applications to increase the functionality for supporting a game or graphical animation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M2250/00Details of telephonic subscriber devices
    • H04M2250/02Details of telephonic subscriber devices including a Bluetooth interface

Abstract

The present invention discloses an apparatus of providing multi-media for supporting a multi-media function connected to a mobile communication terminal comprising : a memory means for recording prescribed data; a connection division for connecting to the above mobile communication terminal; an audio signal connecting division for inputting/outputting audio signals; a display for displaying the functioning of the apparatus; a user’s interface means including an inputting division for receiving prescribed controlling inputting from a user; and an expansion module connecting division for connecting with a prescribed expansion module.

Description

APPARATUS FOR SUPPLYING MULTIMEDIA DATA PROCESSING

Technical Field

The present invention relates to a multimedia function-providing apparatus which is connected to a mobile communication device to support multimedia functions such as playing of audio or video data and displaying of hypertext.

Background Art

As technologies related to mobile communication devices such as mobile phones and PDAs have continued to advance, various multimedia services using wireless communication networks are provided to users of the mobile communication devices. Therefore, in addition to voice services of existing telephone sound quality, audio data of high quality such as MP3 and AAC (Advanced Audio Coding), motion picture services such as Motion JPEG, MPEG-4 and H.264, digital multimedia broadcasting services, videophony and picture archiving services using an external camera that is designed to be embedded in or detachable from the mobile communication device are also provided. As such, there is an increasing interest in services related to multimedia.

For example, Korean mobile communication service providers provide IMT-2000 services associated with the aforementioned multimedia under the name of June, Fimm, etc. A user can receive services such as AOD (Audio on Demand), NOD (Video on Demand) and videophony through a mobile communication device in which a module for performing a multimedia data processing function is embedded. Moreover, if ground wave DMB (Digital Multimedia Broadcasting) or satellite DMB is serviced in the future, a user can receive digital multimedia broadcasting using a mobile phone in which a mobile phone, a DMB receiving module and a signal processor are integrated.

There is an increasing interest in games that are executed on a mobile phone. An attempt has been made to implement a variety of dynamic games by adding a high-speed CPU and a memory for storing the games on a mobile phone.

However, in the event that a module for performing the multimedia processing function (for example, a high-speed digital signal processor, a CPU, a mass storage memory, a camera or the like) is embedded in or integrated with the mobile communication devices as described above, there are problems in that the size of the mobile communication devices increases and the power required also increases. For instance, there will be problems such as a reduction of the battery run time of the mobile communication devices due to the increased power used by the module, increased sizes of mobile communication devices and increased costs of mobile communication devices due to the provision of the above module, and difficulty in upgrading software and hardware to perform new services that occur in the future.

Furthermore, there is an increasing need for secured real-time upgrade and expansion for new services of a mobile communication device having multimedia functions, and an increasing need for new devices such as Walkmans, CD players and portable motion picture players, which can be controlled through a remote controller.

In addition, there is a need for a method in which a multimedia service can be used in existing mobile communication devices having a multimedia function not embedded therein, thus removing the need to purchase an expensive new mobile communication device.

Brief Description of Drawings

Fig. 1 is a block diagram illustrating the construction of a multimedia function-providing apparatus according to an embodiment of the present invention.

Fig. 2 shows an interconnection relationship between the mobile communication device 110 and the multimedia function-providing apparatus 100.

Fig. 3 shows a process to receive multimedia data from a multimedia-providing server 300. Fig. 4 is a block diagram illustrating the application program that runs on the mobile communication device and controls multimedia function-providing apparatus 100.

Fig. 5 is a block diagram illustrating the mobile communication device connection unit. Fig. 6 shows a call method using Bluetooth module in case connector is

Bluetooth module.

Fig. 7 shows a state where a PC 720, the multimedia function-providing apparatus 100, and the mobile communication device 110 are connected.

Fig. 8 shows an interconnection relationship between battery pack and the multimedia function-providing apparatus.

Fig. 9 shows the construction of the multimedia function-providing apparatus according to this embodiment.

Fig. 10 shows the construction of the multimedia function-providing apparatus 1000 according to this embodiment.

Disclosure of Invention The present invention is conceived to solve the aforementioned problems in the prior art. An object of the present invention is to provide a multimedia function-providing apparatus which is connected to a mobile communication device and supports multimedia functions. Accordingly, even in a case where an additional module to perform multimedia functions, e.g. expansion of the capacity of a memory unit for a mobile communication device to store multimedia data larger than text data in size, is not provided in the mobile communication device, a user can be provided with such multimedia functions.

Another object of the present invention is to provide a multimedia function-providing apparatus for storing multimedia data such as audio data, wherein the apparatus is connected to a mobile communication device and receives user commands through an interface module of the mobile communication device.

Further another object of the present invention is to provide a multimedia function-providing apparatus that provides multimedia functions using the power of a mobile communication device. Still another object of the present invention is to provide a multimedia function-providing apparatus to which an expansion module for providing a variety of functions including playing of multimedia data through a predetermined connector is coupled whereby the apparatus is used as a portable game machine and a broadcast receiver such as a digital multimedia broadcast receiving module. Further another object of the present invention is to provide a multimedia function-providing apparatus to which a user's personal computer (PC) is directly connected so that predetermined data can be stored in the apparatus moved from the PC, whereby the apparatus serves as a portable storage device and stores predetermined multimedia data without going through a mobile communication network.

In order to accomplish the above objects and to solve the aforementioned conventional problems, the present invention provides a multimedia function-providing apparatus connected to a mobile communication device, comprising: a memory unit in which predetermined data are recorded, a mobile communication device connection unit for connection to the mobile communication device, an audio signal connection unit for inputting or outputting an audio signal, a user interface unit including a display unit for displaying the operating state of the apparatus or an input unit for receiving a predetermined control input from a user, and an expansion module connection unit for connection to a predetermined expansion module, wherein the mobile communication device connection unit comprises, a digital interface unit for communications with predetermined software that is driven on the mobile communication device, and an analog interface unit for communicating an analog signal with the mobile communication device.

According to aspect of the present invention, there is provided the predetermined expansion module is a PC, the expansion module connection unit has a predetermined connector connected to the expansion module, and the connector is one of a UART (Universal Asynchronous Receiver/Transmitter) terminal, a USB (Universal Serial Bus) terminal, an infrared (IR) port, a wireless LAN module and a Bluetooth module for transmitting/receiving predetermined data to/from the PC.

According to another aspect of the present invention, there is provided the predetermined expansion module is a camera module having a predetermined photographing means, and the expansion module connection unit receives image data from the camera module and sends a control signal to control the operation of the camera module.

According to another aspect of the present invention, there is provided the predetermined expansion module is an encryption/decryption module for encrypting/decrypting predetermined data, and the expansion module connection unit receives an encrypted/decrypted signal from the encryption/decryption module and sends a signal that will be encrypted/decrypted by the encryption/decryption module.

According to another aspect of the present invention, there is provided the predetermined expansion module is a memory module having a predetermined memory, and the expansion module connection unit receives data from the memory module and sends data that will be stored in the memory module.

According to another aspect of the present invention, there is provided the predetermined expansion module is a radio tuner module, and the expansion module connection unit receives the radio signal from the radio tuner module and sends a control signal to control the radio tuner module.

According to another aspect of the present invention, there is provided the expansion module connection unit includes a connector for transmitting/receiving predetermined data to/from the expansion module, and the connector is one of a UART terminal, a USB terminal, an infrared (IR) port, a wireless LAN and a Bluetooth module.

According to another aspect of the present invention, there is provided further comprising a radio tuner having antenna for receiving a radio signal and a tuning circuit. According to another aspect of the present invention, there is provided the predetermined expansion module is a broadcast receiving module, the multimedia function-providing apparatus further comprises a control unit for controlling the broadcast receiving module through the expansion module connection unit and for controlling multimedia data received from the broadcast receiving module to be transmitted to the mobile communication device through the mobile communication device connection unit, and the multimedia data are played in the mobile communication device.

According to another aspect of the present invention, there is provided the expansion module is a game pack including a game program and game contents, the multimedia function-providing apparatus further comprises a signal processor on which a predetermined game emulator is loaded, and the signal processor receives the game program and the game contents from the game pack through the expansion module connection unit, has the game emulator to execute the game program, and transmits the game contents to the mobile communication device through the mobile communication device connection unit so that the game contents are displayed on a display unit of the mobile communication device.

According to another aspect of the present invention, there is provided a computer-readable recording medium in which a program installed in a mobile communication device connected to a multimedia function-providing apparatus is recorded, the program comprising, a display unit control section for controlling a display unit of the mobile communication device to display data associated with the multimedia function-providing apparatus, a keypad control section for controlling a keypad of the mobile communication device to input data associated with the multimedia function-providing apparatus, and a mobile communication device connection control section for controlling connection to the multimedia function-providing apparatus, and a wireless data communication section for controlling wireless data communications of the mobile communication device.

Best Mode for Carrying Out the Invention

Hereinafter, the present invention will be described in detail in connection with preferred embodiments with reference to the accompanying drawings. Fig. 1 is a block diagram illustrating the construction of a multimedia function-providing apparatus according to an embodiment of the present invention.

Referring to Fig. 1, the multimedia function-providing apparatus 100 in accordance with an embodiment of the present invention includes a memory unit 101, a mobile communication device connection unit 102, an audio signal connection unit 103, a user interface unit 104, an expansion module connection unit 105, a radio tuner 106 and a signal processor 107.

The mobile communication device connection unit 102 is connected to a mobile communication device 110. Fig. 2 shows an interconnection relationship between the mobile communication device 110 and the multimedia function-providing apparatus 100. The multimedia function-providing apparatus 100 is connected to the mobile communication device 110 through the mobile communication device connection unit

102 and supports multimedia functions of the mobile communication device 110.

Furthermore, the multimedia function-providing apparatus 100 according to the present invention may be implemented to operate as a remote controller for the mobile communication device 110.

It is to be noted that the multimedia function-providing apparatus 100 shown in

Fig. 2 is illustrative, and the shape of the apparatus 100, the structure of the connection to the mobile communication device 110, etc. may be different from those shown in Fig. 2. It will be evident to those skilled in the art that these modifications fall within the scope of the present invention.

The memory unit 101 serves to store multimedia data such as audio data and video data. According to an embodiment of the present invention, the multimedia data may be received from the mobile communication device 110 through the mobile communication device connection unit 102. The mobile communication device connection unit 102 in accordance with this embodiment includes a given connector for connection to the mobile communication device 110. As shown in Fig. 3, a user can receive multimedia data from a multimedia-providing server 300 through a wireless communication network according to a multimedia related service such as the aforementioned IMT 2000 services. In the prior art, a method wherein multimedia data are received, stored and played in a mobile communication device is used. In this embodiment, however, the multimedia data received by the mobile communication device 110 are stored in the memory unit 101 embedded in the multimedia function-providing apparatus 100 rather than the memory unit embedded in the mobile communication device 110. That is, by providing an additional memory unit capable of storing the multimedia data, increases in the size, cost, etc. of a mobile communication device, which occurs if multimedia functions are performed in the mobile communication device itself, can be reduced.

In addition, the multimedia data can be received from a PC and then stored in the memory unit 101 through the expansion module connection unit 105, which will be described later.

The signal processor 107 serves to process signals that are necessary to regenerate the multimedia data stored in the memory unit 101. The signal processor 107 may be implemented using a high-speed digital signal processor (DSP). The signal processor 107 can dynamically load a suitable signal processing algorithm for multimedia data and is responsible for a multimedia data related signal processing function such as sound compression/decompression of MP3, AAC and WMA, motion picture compression/decompression of Motion JPEG, MPEG-4 and ANI files, hypertext decoding of HTML and flash/Java scripts, voice recognition and analog signal-processing. The signal processing algorithm required in the signal processor 107 may be updated in real time through the mobile communication device connection unit 102 from the mobile communication device 110. Also, if the expansion module is a PC, the signal-processing algorithm may be received through the expansion module connection unit 105 from the PC, which will be described later.

The memory unit 101 may include a volatile memory such as SDRAM and SRAM for supporting the signal processor 107, and a high capacity non- volatile memory such as a flash memory for storing multimedia data and other user data.

Meanwhile, an application program 400 shown in Fig. 4 is already installed or can be installed in the mobile communication device 110. The application program 400 interoperates with a predetermined program embedded in the multimedia function-providing apparatus 100.

The application program 400 can be stored in the memory unit 101 of the multimedia function-providing apparatus 100, and can be installed in the mobile communication device 110 through a first connector, if necessary. Also, the application program 400 can be stored in a recording medium on the part of a predetermined server, and can be received through the wireless communication network from the server and then installed in the mobile communication device 110 or may be embedded in the mobile communication device 110 from the beginning. The application program 400 stored in the memory unit of the mobile communication device 110 as such remains intact unless an additional control command is issued.

The application program 400 is a program that operates on a wireless Internet platform 410 such as WIPI, WITOP and BREW of the mobile communication device 110 or on an operating system (OS) 420 of the mobile communication device 110 itself. The application program 400 includes a display control section 401 to control display unit of mobile communication device 110 to display data associated with the multimedia function-providing apparatus 100 on the aforementioned display unit of the mobile communication device 110, an audio signal control section 402 to control the input/output of audio signals of the mobile communication device 100, a keypad control section 403 to control keypad input of the mobile communication device 100 to receive data associated with the multimedia function-providing apparatus 100, a mobile communication device connection control section 404 to control the connection to the multimedia function-providing apparatus 100 and a wireless data communication section 405 to control wireless data communications of the mobile communication device 110. An application program section 406 controls the entire operation of these modules 401 to 405. For example, the mobile communication device connection control section 404 controls the reception of predetermined audio data and video data from the mobile communication device connection unit 102 of the multimedia function-providing apparatus 100. If a play command of the audio data and the video data is received from the keypad, the audio signal control section 402 controls the audio data to be output through a speaker. The display control section 401 controls the video data to be displayed on the display unit. The display control section 401 further controls data related to various graphic interfaces in the mobile communication device 110 to be displayed on the display unit. The display control section 401 can control the display unit to display predetermined information (the play status, play location and speaker status), etc. that are associated with multimedia functions on the display unit of the mobile communication device 110.

While the video data are played, the display control section 401 can control the display unit to show the play location of the video data, etc. on the display unit and can provide a graphic user interface on the display unit through which predetermined commands such as "stop", "repetitive play for some period", etc. of the video data can be entered. Meanwhile, the commands may be input and executed through an input unit 1042 provided in the multimedia function-providing apparatus 100.

The keypad control section 403 controls the keypad input of the mobile communication device 110. A user can input a command using the keypad that interoperates with the multimedia function-providing apparatus 100. Therefore, the user can control the operation of the multimedia function-providing apparatus 100 by use of the keypad of the mobile communication device 110.

The wireless data communication section 405 controls the reception of data such as audio data and video data through the wireless communication network. The received data are stored in the memory unit 101 of the multimedia function-providing apparatus 100. Moreover, the wireless data communication section 405 controls the stored data to be transmitted to a predetermined server through FTP, e-mail or the like. The application program section 406 controls the entire operation of the respective modules 401 to 405. The application program section 406 also controls other application programs and data that are driven on the wireless Internet platform 410 or the OS 420 of a mobile phone itself to be stored in the multimedia function-providing apparatus 100 or controls the application programs and data to be loaded on the mobile communication device 110. Thus, the multimedia function-providing apparatus 100 allows the memory capacity of the mobile communication device 110 to be extended.

The memory unit 101 controls respective components of the multimedia function-providing apparatus 100 and has a given program 400 (see Fig. 4) recorded therein, for controlling the mobile communication device 110 in cooperation with the software driven on the mobile communication device 110.

The mobile communication device connection control unit 404 controls the operation of a data communication port of the mobile communication device 110 to control data communications with the multimedia function-providing apparatus according to the present invention. The control unit 404 may use a predetermined communication port control protocol in order to control the data communication port of the mobile communication device 110.

According to another embodiment of the present invention, the multimedia function-providing apparatus 100 can further provide a voice recording function. The voice recording function is implemented by storing an audio signal received from a microphone connected to the audio signal connection unit 103, a radio signal received from the radio tuner 106 or a mobile phone call conversation audio signal received from an analog interface unit 1022 of the mobile communication device connection unit 102 into the memory unit 101.

According to another embodiment of the present invention, the audio signal may be compressed in the signal processor 107 before being stored in the memory unit 101. A compression algorithm for voice recording may be dynamically loaded on the signal processor 107 according to a user's requirements such as a compression rate and sound quality. A sound signal, etc. that is received from the mobile communication device 110 may be recorded in real time using a predetermined algorithm.

A user can input a control command using the input device such as the keypad of the mobile communication device 110 or the input button provided in the multimedia function-providing apparatus 100, thus controlling storage (or recording), play, etc. of the aforementioned multimedia data. Information related to storage, play, etc. of these multimedia data can be displayed on the display device provided in the mobile communication device 110 or the multimedia function-providing apparatus 100.

If a hypertext interpretation algorithm is loaded on the signal processor 107, the signal processor 107 may be used as an interpretation engine of a hypertext such as HTML and flash/Java scripts. The interpretation engine may control a hypertext file stored in the memory unit 101 in the form that text, audio data and video data that are combined to be displayed on the display unit of the mobile communication device 110 through the display control section 401. At this time, the audio data may be output through a speaker of a mobile communication device or an earphone connected to the audio signal connection unit 103 of the multimedia function-providing apparatus 100.

The mobile communication device connection unit 102 includes a digital interface unit 1021, the analog interface unit 1022 and a power receiving unit 1023, as shown in Fig. 5.

The digital interface unit 1021 enables communication with predetermined software (including the aforementioned software 400) that is driven on the mobile communication device 110. The analog interface unit 1022 exchanges an analog signal such as a call sound signal with the mobile communication device 110.

The power receiving unit 1023 can be supplied with predetermined power from a battery included in the mobile communication device 110. Accordingly, since there is no need for an additional battery in the multimedia function-providing apparatus 100 according to this embodiment, it can be implemented to be light-weight or miniaturized. The audio signal connection unit 103 is connected to an audio signal output device such as an earphone or an audio signal input device such as a microphone. If video data and audio data are played together, a user can listen to audio through the earphone while viewing video images on the display unit of the mobile communication device 110. Meanwhile, in the event the multimedia function-providing apparatus 100 performs an additional function of a special purpose such as remote medical examination, the audio signal connection unit 103 may have a sensor that is specially designed to check a person's heart rate or pulse instead of a regular microphone. The user interface unit 104 can include the display unit 1041 and the input unit 1042. The display unit 1041 displays the operating state of the multimedia function-providing apparatus 100 (for example, a state where power is supplied, etc.). The input unit 1042 receives a given control input from a user. For instance, the control input may include control inputs such as play, pause and play stop of multimedia data, a control command related to a camera such as capturing an image or storage of an image if an expansion module is a camera module, which will be described later on. Furthermore, according to another embodiment of the present invention, the input unit 1042 can be fabricated as a joystick so that it easily executes games or applications that are driven on the wireless Internet platform 410 of the mobile communication device 110 or the OS of the mobile communication device 110.

In addition, according to another embodiment of the present invention, the multimedia function-providing apparatus 100 may further include the radio tuner 106 for providing an AM or FM radio function. The radio tuner 106 includes an antenna for receiving a predetermined radio signal and a tuning circuit for performing predetermined frequency tuning. According to an embodiment of the present invention, the tuning of the tuning circuit can be performed in the multimedia function-providing apparatus in accordance with the present invention and can be performed using the keypad of the mobile communication device 110. A signal received from the radio tuner 106 is output to the earphone, etc. connected to the audio signal connection unit 103 and a user can listen to a radio signal of a desired channel through the earphone, etc.

Moreover, the multimedia function-providing apparatus 100 in accordance with this embodiment includes the expansion module connection unit 105. The expansion module connection unit 105 has the connector 105a for connection to a predetermined expansion module. The connector 105a may be any one of a UART (Universal Asynchronous Receiver/Transmitter) terminal, a USB (Universal Serial Bus) terminal, an infrared terminal, a wireless LAN and a Bluetooth module.

According to an embodiment of the present invention, the expansion module may be a camera module. The camera module is for input of pictures. If the multimedia function-providing apparatus 100 is connected to the mobile communication device 110 having no camera embedded therein, the camera module can serve as a camera of the mobile communication device 110.

The expansion module connection unit 105 sends a control signal for controlling the operation of the camera module and receives a picture (a still picture or motion picture), which has been captured and transmitted by the camera module, through the connector 105a.

The picture can be transmitted to the mobile communication device 110 through the mobile communication device connection unit 102 and then displayed on the display unit of the mobile communication device 110. Also, the taken picture can be compressed in the signal processor 107 and then stored in the memory unit 101. According to another embodiment of the present invention, the expansion module may be a memory module. The expansion module connection unit 105 receives data from the memory module and transmits data that will be recorded in the memory module to the memory module, through the comiector 105a. Also, the expansion module connection unit 105 sends a control signal to the memory module for searching, deleting or modifying data within the memory module.

The memory unit 101 stores other application programs that are driven on a wireless Internet platform such as WIPI, WITOP and BREW or an OS of the mobile communication device 110 itself and data, or loads the program and data on the mobile communication device 110 again. As such, the memory unit 101 can serve to expand the limited memory capacity of a memory unit embedded in the mobile communication device 101.

In the above, if the memory module is used as the expansion module, the entire memory capacity of the mobile communication device 110 and the multimedia function-providing apparatus 100 can be further expanded. As such, more multimedia data and application programs that are larger than other data in size can be stored and used.

According to another embodiment of the present invention, the expansion module may be an encryption/decryption module. The expansion module connection unit 105 receives an encrypted/decrypted signal from the encryption/decryption module and transmits a signal that will be encrypted/decrypted to the encryption/decryption module, through the connector 105a.

Therefore, a user can use the encryption/decryption module to encrypt predetermined data and then store the encrypted data in the memory unit of the mobile communication device 110 or the memory unit 101 of the multimedia function-providing apparatus 100. The user can decrypt the encrypted stored data for use. In addition, the user can encrypt predetermined data using the encryption/decryption module and transmit the encrypted data to a counterpart through a wireless communication network using the mobile communication device 110. On the contrary, the mobile communication device 110 can receive the encrypted data from the counterpart and the encrypted data are decrypted in the encryption/decryption module.

If the encryption/decryption module is used, the multimedia function-providing apparatus 100 may be used as a cipher device. In the event that a user communicates with a counterpart in a ciphony manner using the mobile communication device 100 having the encryption/decryption module, there is provided a function for encrypting/transmitting voice data and receiving/decrypting the encrypted voice data. It is thus possible to prevent call conversations from being leaked even when the mobile communication device 100 is wiretapped.

This ciphony communication can be applied to a PC, PDA, an IP telephone and the like in which an application program used in the encryption/decryption module or an application program compatible with the application program is executed.

Furthermore, according to another embodiment of the present invention, the encryption/decryption module is not an expansion module connected to the connector 105a, but is embedded in the multimedia function-providing apparatus 100. The memory unit 101 has a predetermined encryption/decryption algorithm recorded therein. As described above, the multimedia function-providing apparatus 100 can be connected to an expansion module using the expansion module connection unit 105. At this time, a predetermined program for controlling the expansion module that interoperates with predetermined software driven in the expansion module is further recorded in the memory unit 101. More particularly, if the connector 105a of the expansion module connection unit 105 is a Bluetooth module, a telephone call can be made through a PSTN network or Internet, as shown in Fig. 6. In a state where the mobile communication device 110 is connected to the multimedia function-providing apparatus 100, the Bluetooth module 105a senses a wireless signal of a wireless LAN AP, etc, in the house or office and a user can make a telephone call through the Bluetooth AP. At this time, the user can make a telephone call through the microphone and the speaker of the mobile communication device 110.

The Bluetooth module 105a senses a wireless signal of the Bluetooth AP, etc. and a user can make a telephone call through Internet using the Bluetooth module 105a. In this case, VoIP (Voice Over IP) technology can be used. Meanwhile, according to another embodiment of the present invention, a sound signal can be transmitted from the Bluetooth module 105a to a Bluetooth module (corresponding one in the Bluetooth AP) on the part of a wired telephone using the Bluetooth module without using VoIP technology and the sound signal can be directly transmitted to PSTN (Public Switched Telephone Network) through the wired telephone. In this case, the wired telephone and the Bluetooth module on the wired telephone side can be integrated into a single piece of hardware.

Also, according to another embodiment of the present invention, the expansion module may be a personal computer (PC). Fig. 7 shows a state where a PC 720 and the multimedia function-providing apparatus 100 are connected. In Fig. 7, there is shown a state where the mobile communication device 110 is connected to the mobile communication device connection unit 102. The mobile communication device 110 can be connected to the multimedia function-providing apparatus 100 regardless of whether the PC 720 is connected to the expansion module connection unit 105.

The expansion module connection unit 105 is connected to the PC 720 through the connector 105a and exchanges multimedia data such as audio data and video data or other user data with the PC 720. The expansion module connection unit 105 can load software that is driven on the multimedia function-providing apparatus 100 from the PC 720 through the connector 105a and be thus upgraded with new software.

According to another embodiment of the present invention, a predetermined application program for controlling the mobile communication device 110 connected to the multimedia function-providing apparatus 100 is recorded in the PC 720. The expansion module connection unit 105 receives a predetermined control command from the application program and the mobile communication device connection unit 102 sends the control command to the mobile communication device.

Therefore, a user can control the mobile communication device 110 that is connected to the PC 720 through the multimedia function-providing apparatus 100 using the PC 720. For example, the user can confirm an address book stored in the memory unit of the mobile communication device 110 on the monitor of the PC 720 and can also update the address book stored in the mobile communication device 110 by modifying the contents of the address book.

Furthermore, according to another embodiment of the present invention, the expansion module connection unit 105 is supplied with power from the PC 720 and the mobile communication device connection unit 102 supplies the power to the mobile communication device 110. Accordingly, the mobile communication device 110 can be charged with the power supplied from the PC 720 in a state where the multimedia function-providing apparatus 110 is connected to the PC 720. As a result, a user does not need to charge the mobile communication device 110 separately. Moreover, the application program recorded in the PC 720 may be controlled so that the degree of charging of the mobile communication device 110 is displayed on the monitor of the PC 720.

If a connector to which power is supplied such as a USB terminal is used in the expansion module connection unit 105 as the connector 105a, the expansion module connection unit 105 can be supplied with necessary power from the multimedia function-providing apparatus 100 or the mobile communication device 110 through the USB terminal. If a connector to which power is not supplied such as a UART terminal or an infrared port is used, the expansion module connection unit 105 can be supplied with power through an additional battery pack for supplying power to the multimedia function-providing apparatus 100. A connection relationship of this battery pack is shown in Fig. 8. If the battery pack is connected to the PC 720 and the mobile communication device 110 by an additional connector, the multimedia function-providing apparatus 100 can be connected to the PC 720, the mobile communication device 110 and the battery pack at the same time. A predetermined driver program can be used so as to connect the multimedia function-providing apparatus of the present invention to a PC depending on an operating system (OS) (Windows 98®, Windows 2000®, Windows XP® or the like) installed in the PC.

In the event the multimedia function-providing apparatus 100 is connected to the

PC 720, the multimedia function-providing apparatus 100 can be used as a portable storage device of the PC 720. A user can store multimedia data such as audio and video data that are stored in the PC 720 in the memory unit 101 and can store multimedia files downloaded through the Internet directly in the memory unit 101.

The multimedia data stored in the memory unit 101 can be played on the display unit or through the speaker of the PC 720. For example, audio data can be played using the audio signal connection unit 103. In addition, according to another embodiment of the present invention, the expansion module may be a broadcast receiving module. The broadcast receiving module receives broadcast waves from a predetermined broadcast station or satellite. In this specification, broadcast data contained in the broadcast wave are referred to as multimedia data. In this embodiment, the multimedia function-providing apparatus 100 further includes a control imit (not shown). The control unit receives the multimedia data from the broadcast receiving module through the expansion module connection unit 105 and controls the received multimedia data to be transmitted to the mobile communication device 110 that is connected to the control unit through the mobile communication device connection unit 102. The display control section 401 disposed in the mobile communication device

110 controls video data among the received multimedia data to be displayed on the display unit of the mobile communication device 110. The audio signal control section 402 controls audio data among the received multimedia data to be output through the speaker of the mobile communication device 110. In addition, according to another embodiment of the present invention, the audio data among the received multimedia data are not transmitted to the mobile communication device 110 but the control unit controls the audio data to be output from the audio signal connection unit 103. In other words, an audio signal can be output from the mobile communication device 110 and from the multimedia function-providing apparatus 100. Through this construction, even in case where the broadcast receiving module is not installed in the mobile communication device 110 itself, a user can view broadcasts from the mobile communication device 110 using the multimedia function-providing apparatus 100. It is therefore not necessary for a user to purchase a mobile communication device having a broadcast receiving module.

The broadcast receiving module can be an analog ground wave broadcast receiving module, a digital ground wave broadcast receiving module or a digital multimedia broadcast receiving module.

Meanwhile, the signal processor 107 decodes multimedia data received from the broadcast receiving module. The control unit can control the decoded multimedia data to be transmitted to the mobile communication device 110. Furthermore, the broadcast receiving module can further include a predetermined signal processor for converting the multimedia data in order for the multimedia function-providing apparatus 100 to process the multimedia data.

Moreover, according to another embodiment of the present invention, the expansion module can be a game pack. The game pack includes a game program for executing a predetermined game and game contents. In this embodiment, the signal processor 107 has a game emulator for executing the game loaded thereon. The signal processor 107 can be fabricated with the game emulator loaded thereon. The signal processor 107 can load a game emulator that is received by the mobile communication device 110 through the wireless communication network from the mobile communication device connection unit 102, or can load the game emulator from a PC, etc. through the expansion module connection unit 105 in a wired/wireless manner.

The signal processor 107 receives the game program or the game contents from the game pack through the expansion module connection unit 105 and uses the game emulator to execute the game program. Also, the signal processor 107 transmits the game contents to the mobile communication device 110 through the mobile communication device connection unit 102 so that the game contents are displayed on the display unit of the mobile communication device 110 as the game plays.

A user can play the game by inputting a predetermined command through an input means such as the keypad of the mobile communication device 110 or the input unit 1042 of the multimedia function-providing apparatus 100. At this time, the input unit 1042 can be fabricated to have a shape through which a user can input a command easily such as a joystick for easy manipulation of the game.

A user can compete with other users or perform team play in association with other users by transmitting and receiving data to and from mobile communication devices or computers of other users through the mobile communication device 100. In addition, according to another embodiment of the present invention, the game program and the game contents are not received from the game pack through the expansion module connection unit 105, but are stored in the memory unit 101.

Meanwhile, if the game contents include voice data, the signal processor 107 can transmit the voice data to the mobile communication device 110 through the mobile communication device connection unit 102 so that the voice data are output through the speaker of the mobile communication device 110. Furthermore, the signal processor 107 can control the voice data to be output through a predetermined speaker through the audio signal connection unit 103.

Moreover, according to another embodiment of the present invention, in a state where a predetermined synchronization program is recorded in the memory unit 101 and the synchronization program accesses the PC 720, multimedia data stored in the memory unit 101 can be updated with the latest contents, or software that drives the multimedia function-providing apparatus 100 can be upgraded. Such upgrading can be performed periodically. Also, a given program for controlling the display unit of the PC 720 can be further recorded in the memory unit 101. The program can provide a user with a graphic interface on the PC 720 for driving the multimedia function-providing apparatus 700.

According to another embodiment of the present invention, the multimedia function-providing apparatus 100 may further include an additional connector. With the PC 720 connected to the expansion module connection unit 105, a camera module is connected to the connector and can operate as a camera of the PC 720.

At this time, the connector transmits a control signal for controlling the operation of the camera module and receives a picture (a still picture or motion picture) that is taken and transmitted by the camera module.

The picture can be transmitted to the PC 720 through the connector and the expansion module connection unit 105 and then displayed on the display unit of the PC 720. Also, the taken picture may be compressed in the signal processor 107 and then stored in the memory unit 101.

In addition, the picture received from the camera module through the connector may not be stored in the memory unit 101, but transmitted to the PC 720 through the expansion module connection unit 105. The received picture can be stored in the memory unit embedded in the PC 720 or transmitted to other client tenninal through a wired/wireless Internet.

According to another embodiment of the present invention, the multimedia function-providing apparatus 100 includes encryption/decryption module therein and a predetermined encryption/decryption algorithm is recorded in the memory unit 101.

Therefore, if voice call employing VoIP technology is made using the PC 720, the encryption/decryption module can be used as a ciphony device.

Furthermore, according to another embodiment of the present invention, the multimedia function-providing apparatus 100 can operate independently. As shown in Fig. 8, the expansion module connection unit 105 can be connected to a power supply source such as an additional battery pack 810 for supplying power to the multimedia function-providing apparatus 100.

If the multimedia function-providing apparatus operates independently as such, a user can input a control command using the input unit 1042 and confirm the operating state of the multimedia function-providing apparatus 100 through the display unit 1041.

The multimedia function-providing apparatus 100 according to this embodiment can perform an audio signal process such as the playing or recording of audio data using the audio signal connection unit 103. Furthermore, a radio signal received through the radio tuner 106 can be also played using the audio signal connection unit 103. The multimedia function-providing apparatus 100 is constructed so that it uses the display unit of the mobile communication device 110. Therefore, the multimedia function-providing apparatus 100 not having an additional display unit cannot play video data. It would be preferred that the multimedia function-providing apparatus 100 is implemented not to have an additional display unit in order to reduce the size in that the apparatus is connected to the mobile communication device 110 carried by a user.

In this embodiment, if the camera module is connected to the expansion module connection unit 105 as the expansion module, the multimedia function-providing apparatus 100 and the camera module can be used as an independent digital camera.

Hereinafter, a multimedia function-providing apparatus according to another embodiment of the present invention will be described with reference to Figs. 4 and 9. Fig. 9 shows the construction of the multimedia function-providing apparatus according to this embodiment.

The multimedia function-providing apparatus 900 includes a data storage unit 901, a mobile communication device connection unit 902, a signal processor 903, an audio data output unit 904, a user input unit 905, an expansion module connection unit 906 and a power receiving unit 907.

The multimedia function-providing apparatus 900 can be connected to a mobile communication device 910 through the mobile communication device connection unit 902 in a wired/wireless manner. The mobile communication device 910 has a mobile communication device control unit 911 for controlling a predetermined module of the multimedia function-providing apparatus 900 or the mobile communication device 910. The mobile communication device control unit 911 consists of a hardware component and a software component. The software component includes a control program.

The control program includes the display control section 401, the audio signal control section 402, the keypad control section 403, the mobile communication device connection control section 404 and the wireless data communication section 405, as shown in Fig. 4.

Further, the control program may be embedded in the mobile communication device 910. Furthermore, the control program can be downloaded onto a NM (Virtual

Machine) on a wireless platform of the mobile communication device 910 to constitute the mobile communication device control unit 911. When it is implemented in such a manner that the control program can be downloaded onto the VM of the mobile communication device 910, the mobile communication device control unit can be configured by downloading the control program onto an existing mobile communication device that can provide only a limited multimedia function. Accordingly, there is an advantage in that various multimedia functions can be provided using the multimedia function-providing apparatus 900 according to this embodiment.

The control program can control a predetermined module such as the display unit of the mobile communication device 910, the multimedia function-providing apparatus 900 or data transmission/reception between the multimedia function-providing apparatus 900 and the mobile communication device 910, as will be described later.

The data storage unit 901 stores data such as audio and video data. The video data may be data that are synchronized to the audio data.

The data stored in the data storage unit 901 can be data that are downloaded from an expansion module (not shown). For example, the expansion module may be a PC. The multimedia function-providing apparatus 900 can be connected to a PC through the expansion module connection unit 906 and download data (including audio and/or video data) from the PC.

Furthermore, the data stored in the data storage unit 901 may be data that are received from the mobile communication device 910. If the mobile communication device 910 receives data such as audio data through a wireless communication network, the mobile communication device control unit 911 controls the data to be transmitted to the multimedia function-providing apparatus 900 through the mobile communication device connection unit 902. The mobile communication device control unit 911 (particularly, the mobile communication device connection control section 404) can control the mobile communication device connection unit 902.

At this time, the mobile communication device control unit 911 can control the data to be transmitted to the multimedia function-providing apparatus 900 after the data are transmitted to the mobile communication device 910. Moreover, the mobile communication device control unit 911 can control some of data that are already transmitted to the mobile communication device 910 to be transmitted to the multimedia function-providing apparatus 900 while the data are being transmitted to the mobile communication device 910. At this time, the data are not stored in the memory of the mobile communication device 910, but temporarily buffered in a predetermined buffer only. Next, the data are transmitted to the multimedia function-providing apparatus 900 and then stored in the data storage unit 901 of the multimedia function-providing apparatus 900. At this time, the mobile communication device control unit 911 does not need to access the memory of the mobile communication device 910. Therefore, if a control program is downloaded on a VM to form the mobile communication device control unit 911, a configuration in which the wireless data communication section 405 of the mobile communication device control unit 911 controls the data to be directly transmitted to the multimedia function-providing apparatus 900 in the process wherein the data are received can be more easily implemented than a configuration wherein the mobile communication device control unit 911 accesses the memory of the mobile commimication device 910 to read the data therefrom. A user can input a predetermined command to the multimedia function-providing apparatus 900 using an interface module (for example, a keypad) of the mobile communication device 910. In other words, the user can control the multimedia function-providing apparatus 900 using the mobile communication device 910. At this time, the mobile communication device control unit 911 (more particularly, the display control section 401) controls the list of data stored in the data storage unit 901 to be displayed on the display unit of the mobile communication device 910. Furthermore, the mobile communication device control unit 911 can control the list of the data to be searched from the mobile communication device 910.

A user can input a play command by selecting data from the data list displayed on the display unit. If the play command is input, the mobile communication device control unit 911 transmits the play command to the multimedia function-providing apparatus 900 through the mobile communication device connection unit 902.

According to the play command, the signal processor 903 extracts the selected data from the data storage unit 901 and decompresses the extracted data. The data may be audio data or video data, and may be audio data and video data synchronized to the audio data.

The audio data output unit 904 outputs the decompressed audio data so that the user can listen to music, etc.

Furthermore, the decompressed audio data can be transmitted to the mobile communication device 910 through the mobile communication device connection unit 902. The mobile communication device control unit 911 (in particular, the audio signal control section 402) controls the received audio data to be output through the speaker of the mobile communication device 910.

The decompressed video data may be transmitted to the mobile communication device 910 through the mobile communication device connection unit 902. The mobile communication device control unit 911 (more particularly, the display control section 401) controls the received video data to be displayed on the display unit of the mobile communication device 910.

Moreover, the mobile communication device control unit 911 can control play information (information on frequency, amplitude, etc. of the audio data) on the audio data to be displayed on the display unit of the mobile communication device 910 while the audio data are being played. The control unit 911 can also control the interface module of the mobile communication device 910 to control a play state of the audio data. For example, the mobile communication device control unit 911 may provide an equalizer function.

By allowing a user to control the multimedia function-providing apparatus 900 using the interface module of the mobile communication device 910 as such, the user can input a user command more conveniently.

According to another embodiment of the present invention, the multimedia function-providing apparatus 900 may further include the user input unit 905 for receiving a user command. Therefore, the user can input a user command such as a play command, a play stop command and a command for controlling the volume of sound played using the interface module of the mobile communication device 910 or the user input unit 905.

Furthermore, according to another embodiment of the present invention, the multimedia function-providing apparatus 900 provides a user with a so-called hand-free function.

To this end, the mobile communication device control unit 911 controls data such as voice data that are received from other mobile communication device to be transmitted to the multimedia function-providing apparatus 900 through the mobile communication device connection unit 902 with a call between the mobile communication device 910 and other mobile communication device established.

The audio data output unit 904 outputs the voice data, etc. that are received through the mobile communication device connection unit 911 so that a user can listen to them.

Therefore, the user can talk over the telephone while listening to music through the audio data output unit 904 of the multimedia function-providing apparatus 900. Also, if the user wants to input a user command for answering or hanging up the telephone to the mobile communication device 910, the user can use the user input unit 905 instead of the interface module of the mobile communication device 910. The user command is transmitted to the mobile communication device 910 through the mobile communication device connection unit 902.

In addition, the multimedia function-providing apparatus 900 may further include the power receiving unit 907. The power receiving unit 907 is powered by a power supply unit (battery) of the mobile communication device 910 so that the multimedia function-providing apparatus 900 operates.

As such, the multimedia function-providing apparatus 900 shares power with the mobile communication device 910. Thus, as there is no need for an additional power supply unit, the size of the multimedia function-providing apparatus 900 can be minimized. Further, as there is no need for an additional charging process, a user can use the multimedia function-providing apparatus conveniently.

A multimedia function-providing apparatus according to still another embodiment of the present invention will now be described with reference to Fig. 10. The multimedia function-providing apparatus according to this embodiment allows a user to receive a satellite DMB (Digital Multimedia Broadcasting) service using existing mobile communication device and multimedia function-providing apparatus without an additional expensive satellite DMB receiver.

Fig. 10 shows the construction of the multimedia function-providing apparatus 1000 according to this embodiment. The multimedia function-providing apparatus

1000 includes a mobile communication device connection unit 1001, a radio frequency signal processor 1002, a signal processor 1003, a digital to analog (D/A) converter 1004 and an audio data output unit 1005.

A mobile communication device 1010 connected to the multimedia function-providing apparatus 1000 includes a mobile communication device control unit

1011. The mobile communication device control unit 1011 controls the multimedia function-providing apparatus 1000 and predetermined modules such as a display module and an interface module of the mobile communication device 1010 in a state where the mobile communication device control unit 1011 is connected to the multimedia function-providing apparatus 1000.

Like the aforementioned embodiment, the mobile communication device control unit 1011 includes a control program. The control program may be downloaded on a VM of a wireless platform of the mobile communication device 1010.

If a user inputs a user command such as a satellite DMB view command using an interface module, i.e., a keypad of the mobile communication device 1010, the user command is transmitted to the multimedia function-providing apparatus 1000 through the mobile communication device connection unit 1001.

The radio frequency signal processor 1002 receives digital data transmitted in satellite DMB mode according to the user command. That is, the radio frequency signal processor 1002 can receive digital data having a frequency of 2605GHz to 2655GHz that are received in satellite DMB mode. The signal processor 1003 decodes the received digital data. The D/A converter 1004 converts some or all of the decoded digital data into analog data. The mobile communication device connection unit 1001 transmits the analog data to the mobile communication device 1010.

The mobile communication device control unit 1011 controls video data among the received analog data to be displayed on a display unit of the mobile communication device 1010 and controls audio data among the received analog data to be output through a speaker of the mobile communication device 1010.

In addition, the audio data can be output through the audio data output unit 1005 on the part of the multimedia function-providing apparatus 1000 rather than through the speaker of the mobile communication device 1010.

Through this configuration, users can be provided with the satellite DMB service without an additional satellite DMB receiver, and users may only carry mobile communication device and the multimedia function-providing apparatus 100 instead of carrying mobile communication device and satellite DMB receiver separately. Moreover, the multimedia function-providing apparatus 1000 according to this embodiment can include a power receiving unit (not shown) and be powered by the mobile communication device 1010. Meanwhile, the mobile communication device according to the present invention includes a mobile phone, a smart phone and a PDA.

Industrial Applicability According to the present invention, there is provided a multimedia function-providing apparatus connected to a mobile communication device to support a multimedia function.

Furthermore, according to a multimedia function-providing apparatus of the present invention, there is an advantage in that multimedia data are stored and played through a display device and keypad of a mobile communication device connected to the apparatus. Therefore, users can easily input a user command to a multimedia function-providing apparatus using an interface module such as a keypad and display device of the mobile communication device.

According to a multimedia function-providing apparatus of the present invention, a communication function and a multimedia function in a mobile communication device are separated. Accordingly, there are effects in that manipulation such as the playing and stopping of multimedia data are convenient, and expansion and upgrading of hardware and/or software of a mobile communication device are easy.

Moreover, according to a multimedia function-providing apparatus of the present invention, the multimedia function-providing apparatus can be used even in an existing mobile communication device that does not support a multimedia function.

Therefore, there is an advantage in that a user of the existing mobile communication device is provided with multimedia functions.

Also, according to a multimedia function-providing apparatus of the present invention, since multimedia data, etc. can be stored in a memory unit embedded in the multimedia function-providing apparatus, the amount of data stored in the mobile communication device is reduced. Accordingly, there are advantages in that limitations on the capacity of a memory embedded in a mobile communication device can be overcome and multimedia data can be played even in a mobile communication device that does not support multimedia functions.

Furthermore, a multimedia function-providing apparatus according to the present invention has an effect that it can be connected to a PC, a camera module, a memory module, an encryption/decryption module, a broadcast receiving module, a game pack and the like by means of an expansion module connection unit for connection to a predetermined expansion module. Moreover, there is an advantage in that additional services other than support of multimedia functions are provided to a user through the expansion module or the multimedia functions can be more perfectly supported.

In addition, there is no need for an additional power supply unit since a multimedia function-providing apparatus according to the present invention is powered by a mobile communication device. It is thus possible to minimize the size of the multimedia function-providing apparatus. Also, a user can use a multimedia function-providing apparatus conveniently since there is no need for an additional process for charging a multimedia function-providing apparatus.

Although the present invention has been described in connection with the embodiment of the present invention illustrated in the accompanying drawings, it is not limited thereto since it will be apparent to those skilled in the art that various substitutions, modifications and changes may be made thereto without departing from the scope and spirit of the invention.

Claims

1. A multimedia function-providing apparatus connected to a mobile communication device, comprising: a data storage unit for storing audio data or video data associated with the audio data; a mobile communication device connection unit connected with the mobile communication device for receiving a user command including a play command from the mobile communication device, wherein the play command includes selection of the audio data; a signal processor for extracting the selected audio data from the data storage unit according to the play command and decompressing the extracted audio data; an audio data output unit for outputting the decompressed audio data; an expansion module connection unit connected with a predetermined expansion module for exchanging data with the expansion module; and a power receiving unit connected to a power supply unit of the mobile communication device for receiving power from the power supply unit.
2. The apparatus as claimed in claim 1, wherein the signal processor extracts video data associated with the selected audio data from the data storage unit according to the play command and decompresses the extracted video data, the mobile communication device connection unit sends the decompressed video data to the mobile communication device, and the mobile communication device comprises a mobile communication device control unit that controls the decompressed video data to be displayed on a display unit of the mobile communication device.
3. The apparatus as claimed in claim 2, wherein the mobile communication device connection unit transmits the decompressed audio data to the mobile communication device, and the mobile communication device control unit controls the decompressed audio data to be played through a speaker of the mobile commumcation device.
4. The apparatus as claimed in claim 2, wherein the mobile communication device control unit controls data that are received from another mobile communication device to be transmitted through the mobile communication device connection unit in a state where a call between the mobile communication device control unit and other mobile communication device is established, and the audio data output unit outputs the received data through the mobile communication device connection unit.
5. The apparatus as claimed in claim 2, wherein the mobile communication device control unit controls the audio data or video data that are transmitted to the mobile communication device through a wireless communication network to be transmitted through the mobile communication device connection unit, and the data storage unit stores the audio data or video data that are received through the mobile communication device connection unit.
6. The apparatus as claimed in claim 1, wherein the expansion module is a PC, the expansion module connection unit receives audio data or video data from the
PC, and the data storage unit stores the received audio data or the received video data.
7. The apparatus as claimed in claim 1, further comprising a user input unit for receiving the user command including the play command from a user.
8. The apparatus as claimed in any one of claims 2 to 5, wherein the mobile communication device control unit includes a control program that is downloaded on a VM (Virtual Machine) on a wireless platform of the mobile communication device.
9. A multimedia function-providing apparatus connected to a mobile communication device, comprising: a mobile communication device connection unit for receiving a user command including a broadcast command from the mobile communication device based on a satellite DMB (Digital Multimedia Broadcasting) service; a radio frequency signal processor for receiving digital data transmitted in satellite DMB mode; a digital signal processor for decoding the digital data; and a D/A converter for converting some or all of the decoded digital data into analog data, wherein the mobile communication device connection unit transmits the analog data to the mobile communication device, and the mobile communication device comprises a mobile communication device control unit that controls video data among the analog data to be displayed on a display unit of the mobile communication device or controls audio data among the analog data to be output through a speaker of the mobile communication device.
10. The apparatus as claimed in claim 9, further comprising an audio data output unit for outputting the audio data among the analog data.
11. A multimedia function-providing apparatus connected to a mobile communication device, comprising: a memory unit in which predetermined data are recorded; a mobile communication device connection unit for connection to the mobile communication device; an audio signal connection unit for inputting or outputting an audio signal; a user interface unit including a display unit for displaying the operating state of the apparatus or an input unit for receiving a predetermined control input from a user; and an expansion module connection unit for connection to a predetermined expansion module, wherein the mobile communication device connection unit comprises: a digital interface unit for communicating with predetermined software that is driven on the mobile communication device; and an analog interface unit for communicating an analog signal with the mobile communication device.
12. The apparatus as claimed in claim 11, wherein the mobile communication device connection unit further comprises a power receiving unit for receiving predetermined power from a battery included in the mobile communication device.
13. The apparatus as claimed in claim 11, wherein the predetermined expansion module is a PC, the expansion module connection unit has a predetermined connector connected to the expansion module, and the connector is one of a UART terminal, a USB terminal, an infrared (IR) port, a wireless LAN and a Bluetooth module for transmitting/receiving predetermined data
Figure imgf000034_0001
14. The apparatus as claimed in claim 13, wherein a predetermined application program for controlling the mobile communication device connected to the mobile communication device connection unit is recorded in the PC, the expansion module connection unit receives a predetermined control command from the application program, and the mobile communication device connection unit sends the control command to the mobile communication device.
15. The apparatus as claimed in claim 14, wherein the expansion module connection unit is supplied with power by the PC, and the mobile communication device connection unit provides the supplied power to the mobile communication device.
16. The apparatus as claimed in claim 11, wherein a given program that controls the expansion module in association with predetermined software that is driven on the expansion module is recorded in the memory unit.
17. The apparatus as claimed in claim 11, wherein the predetermined expansion module is a camera module having a predetermined photographing means, and the expansion module connection unit receives image data from the camera module and sends a control signal for controlling the operation of the camera module.
18. The apparatus as claimed in claim 11, wherein the predetermined expansion module is an encryption/decryption module for encrypting/decrypting predetermined data, and the expansion module connection unit receives an encrypted/decrypted signal from the encryption/decryption module and sends a signal that will be encrypted/decrypted to the encryption/decryption module.
19. The apparatus as claimed in claim 11, wherein the predetermined expansion module is a memory module having a predetermined memory, and the expansion module connection unit receives data from the memory module and sends data that will be recorded in the memory module to the memory module.
20. The apparatus as claimed in claim 11, wherein the predetermined expansion module is a radio tuner module having an antenna for receiving a radio signal and a tuning circuit, and the expansion module connection unit receives the radio signal from the radio tuner module and sends a control signal for controlling the radio tuner module.
21. The apparatus as claimed in claim 11, wherein the predetermined expansion module is an Internet telephone device including a predetermined Bluetooth access point, and the expansion module connection unit includes a Bluetooth module and is connected to the Bluetooth access point by using the Bluetooth module, whereby voice communication through an Internet network is possible.
22. The apparatus as claimed in claim 11, wherein the predetermined expansion module is a broadcast receiving module, the multimedia function-providing apparatus further comprises a control unit for controlling the broadcast receiving module through the expansion module connection unit and for controlling multimedia data received from the broadcast receiving module to be transmitted to the mobile communication device through the mobile communication device connection unit, and the multimedia data are played in the mobile communication device.
23. The apparatus as claimed in claim 22, further comprising a signal processor for decoding the multimedia data received from the broadcast receiving module, and the control unit controls the decoded multimedia data to be transmitted to the mobile communication device through the mobile communication device connection unit.
24. The apparatus as claimed in claim 22, wherein the broadcast receiving module is one of an analog ground wave broadcast receiving module, a digital ground wave broadcast receiving module or a digital multimedia broadcast receiving module.
25. The apparatus as claimed in claim 22, wherein if the multimedia data are voice data, the control unit controls the voice data to be output through the audio signal connection unit.
26. The apparatus as claimed in claim 11, wherein the expansion module is a game pack including a game program and game contents, the multimedia function-providing apparatus further comprises a signal processor on which a predetermined game emulator is loaded, and the signal processor receives the game program and the game contents from the game pack through the expansion module connection unit, has the game emulator to execute the game program, and transmits the game contents to the mobile communication device through the mobile communication device connection unit so that the game contents are controlled to be displayed on a display unit of the mobile communication device.
27. The apparatus as claimed in claim 11, wherein a game program and game contents are recorded in the memory unit, the multimedia function-providing apparatus further comprises a signal processor on which a predetermined game emulator is loaded, and the signal processor has the game emulator to execute the game program, and transmits the game contents to the mobile communication device through the mobile communication device connection unit so that the game contents are controlled to be displayed on a display unit of the mobile communication device.
28. The apparatus as claimed in claim 26 or 27, wherein the signal processor performs at least one of the steps of: if the game contents are voice data, controlling the voice data to be output through a speaker of the mobile communication device by transmitting the voice data to the mobile communication device through the mobile communication device connection unit, and controlling the voice data to be output through a predetermined speaker through the audio signal connection unit.
29. The apparatus as claimed in claim 11, wherein the expansion module connection unit includes a connector for transmitting/receiving predetermined data to/from the expansion module, and the connector is one of a UART terminal, a USB terminal, an infrared (IR) port, a wireless LAN and a Bluetooth module.
30. The apparatus as claimed in claim 11, further comprising a radio tuner having an antenna for receiving a radio signal and a tuning circuit.
31. A computer-readable recording medium in which a program installed in a mobile communication device connected to a multimedia function-providing apparatus is recorded, the program comprising: a display unit control section for controlling a display unit of the mobile communication device to display data associated with the multimedia function-providing apparatus on the display unit; a keypad control section for controlling a keypad of the mobile communication device to input data associated with the multimedia function-providing apparatus; and a mobile commimication device connection control section for controlling connection to the multimedia function-providing apparatus.
32. The computer-readable recording medium as claimed in claim 31, wherein the program further comprises a wireless data communication section for controlling wireless data communications of the mobile communication device.
33. The computer-readable recording medium as claimed in claim 31, wherein the program further comprises an audio signal control section for controlling audio signal input/output of the mobile communication device.
PCT/KR2004/001004 2003-06-18 2004-04-30 Apparatus for supplying multimedia data processing WO2004112268A1 (en)

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