KR100953976B1 - Portable receiver device for storing digital multimedia broadcasting program data and method thereof - Google Patents

Abstract

A portable apparatus and a method of controlling the same are provided to selectively store video / audio data and audio data of a digital multimedia broadcasting program in accordance with the remaining amount of a storage medium in which data is stored. The portable device includes a tuner for receiving a digital broadcast corresponding to an input of a channel selection signal and outputting encoded video and audio data; A demultiplexer for demultiplexing the encoded video / audio data output from the tuner and outputting broadcast program additional information including the encoded video data, the encoded audio data, and the broadcast time of the program; Storing encoded video and audio data output from the tuner in response to a first storage control signal on a memory card, and continuously recording encoded audio data output from the demultiplexer in response to a second storage control signal. A program data storage unit; Providing a channel selection signal corresponding to a user input to the tuner and according to a broadcast time of a received broadcast program acquired from the broadcast program additional information according to a user's storage command and the first and second storage control signals according to the remaining memory of the memory card. And a control unit for providing one of the program data storage units.

DMB Broadcast, EPG, Electronic Program Guide, Memory Card

Description

PORTABLE RECEIVER DEVICE FOR STORING DIGITAL MULTIMEDIA BROADCASTING PROGRAM DATA AND METHOD THEREOF}

1 is a block diagram of a portable device for receiving and storing a digital multimedia broadcasting program according to a preferred embodiment of the present invention.

2 is a flowchart illustrating a method of receiving and storing a digital multimedia broadcasting program in a storage medium according to a first embodiment of the present invention.

3 is a flowchart illustrating a method of receiving and storing a digital multimedia broadcasting program in a storage medium according to a second embodiment of the present invention.

`` Explanation of symbols for main parts of drawings ''

10: portable device, 12: DMB tuner,

14: system bus, 16: demultiplexer,

18: video restoring unit, 20: display panel,

22: audio restoring unit, 24: speaker,

26 EPG buffer, 28 microprocessor,

30: PCMCIA interface, 32: PCMCIA slot,

34: memory card, 36: memory,

38: user input unit, 40: input / output interface.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable device for receiving and storing digital broadcasting programs. More particularly, the present invention relates to a digital multimedia broadcasting program, which is adapted to the remaining capacity of a storage medium in which data is stored. A portable device and a control method thereof for selectively storing data and voice data.

A typical portable device, for example, a DMB receiver capable of receiving and viewing a DMB program transmitted from a terrestrial DMB station or a satellite DMB station, is received by the DMB tuner and demodulated DMB program data, that is, encoded image data. In most cases, it is configured to store encoded video data and voice data in a storage medium and play and view the stored data when necessary.

As an example of storing and reproducing the DMB program as described above, Patent Application Publication No. 2005-52859 (Digital Multimedia Broadcasting Receiving Device; Is referred to as "."

The DMB broadcast receiving device disclosed in Prior Art 1 records encoded DMB broadcast signals, that is, encoded video data and voice data, which are demodulated and output from a DMB tuner in response to a user command, on a storage medium. The DMB broadcast signal recorded on the storage medium is demultiplexed by MPEG4 (Moving Picture Experts Group 4) to separate video and audio data, and then play back the video and audio data. In this case, a memory card such as a Compact Flash Memory ( ^TM ), a Secure Digital Card (SD), or the like, which is inserted into a PCMCIA slot and is operated as a storage medium, is mainly used.

However, the DMB broadcast receiving apparatus disclosed in Prior Art 1 records both the encoded video and audio data demodulated by the tuner in a storage medium, so that when the data size of the currently viewed DMB program is larger than the storage capacity of the storage medium, There is a problem that cannot be done.

For example, if the data of the currently received DMB program is a music video, the user really cares about the audio data that guarantees CD (compact disk) level sound quality, or the video data and the audio data. By recording at the same time, there was a problem in that the entire practical data required by the user cannot be stored.

In order to solve the above problems, a DMB receiver for storing only the decoded voice data in a storage medium among the data of the DMB program transmitted in CD quality sound is patented by the present applicant and filed on June 28, 2005. 2005-0063215 (DMB receiver: hereinafter referred to as "prior art 2").

The technique of the prior art 2 records only the voice data of the program data broadcast in CD-level sound quality on a storage medium to record a larger amount of voice data, such as an MP3 (MPEG Audio Layer-3) player. For use in form.

However, the technique of the prior art 2 discloses only a technical configuration of MPEG demultiplexing the encoded video and audio data demodulated and output by the DMB tuner, and then only MPEG signal decoding and storing and reproducing the audio signal on a storage medium. There was a problem that the image data of the DMB program could not be stored.

Accordingly, a first object of the present invention is to record a received demodulated coded image and audio data on a storage medium, and to record decoded voice data when the remaining amount of the storage medium is not sufficient, thereby increasing the utilization efficiency of the storage medium. And a control method thereof.

A second object of the present invention is to select broadcast program data or decoded voice data received by detecting broadcast time information included in a user transmission channel of a received digital broadcast program and a recording remaining amount of a storage medium in which the selected broadcast program data is stored. The present invention provides a portable device that can store data and a control method thereof.

It is a third object of the present invention to provide a portable apparatus and a control method thereof which enable continuous recording even when the storage medium is exchanged while storing the selected received digital broadcast program data.

The fourth object of the present invention is to the electronic program guide (hereinafter referred to as "EPG") information or the event information table (hereinafter referred to as "EIT") included in the broadcast program data received from the tuner. The present invention provides a portable device and a control method thereof for storing a received digital broadcasting program in a storage medium by using information of an included program airing time.

According to an aspect of the present invention, there is provided a portable apparatus comprising: a tuner for receiving a digital broadcast corresponding to an input of a channel selection signal and outputting encoded video and audio data; A demultiplexer for demultiplexing the encoded video / audio data output from the tuner and outputting broadcast program additional information including the encoded video data, the encoded audio data, and the broadcast time of the program; A program for storing encoded video and audio data output from the tuner in response to a first storage control signal in a memory card and continuously recording encoded audio data output from the demultiplexer in response to a second storage control signal in a memory card; A data storage unit; Providing a channel selection signal corresponding to a user input to the tuner and according to a broadcast time of a received broadcast program acquired from the broadcast program additional information according to a user's storage command and the first and second storage control signals according to the remaining memory of the memory card. It characterized in that it comprises a control unit for providing one of the program data storage unit.

The broadcast program additional information is EPG information including subtitle information such as broadcast start, broadcast end time, and broadcast time of the DMB program data, and is included in the PAD (Program Associated Data) of the DMB program data.

The control unit calculates a memory remaining amount of the memory card in response to a user storage command, and outputs the encoded image output from the tuner when the calculated memory remaining exceeds the total broadcast time of the broadcast program selected from the broadcast program additional information. It is preferable to generate a first storage control signal so that voice data is stored in the memory card.

The controller calculates a memory remaining amount of the memory card in response to a user storage command, and when the calculated memory remaining amount is smaller than the total airing time of the broadcast program selected from the broadcast program additional information, Preferably, the first storage control signal is output to store the encoded video and audio data in the memory card, and the second storage control signal is output to store the encoded audio data in the memory card.

According to another aspect of the present invention, a method for storing DMB program data of a portable device for receiving a DMB program includes detecting an EPG included in a received DMB program, such as a broadcast start time and a broadcast end time of a selected broadcast program. Obtaining additional information; A recordable determining process of calculating a memory remaining amount of the memory card in response to a user storage command and searching whether the calculated memory remaining amount exceeds the amount of program data information of a broadcast time obtained from the broadcast program additional information; A first storing step of storing encoded video / audio data of a received broadcast program in the memory card when the amount of program data corresponding to the broadcast time of the selected broadcast program is exceeded, and the remaining amount of the broadcast program being received; And a second storage process of storing only encoded audio data of a received broadcast program in the memory card when the amount of program data corresponding to the broadcast time is smaller than the broadcast time.

The second storing process may include: a searching process of searching whether the calculated memory remaining amount can store 1/2 of the selected broadcast program data information; and the first storing of broadcast program data information selected from the calculated memory residue in the searching process. A recording process of storing the encoded video / audio data of the selected broadcast program data in the memory card when the number is greater than / 2, and when the calculated remaining memory amount is less than 1/2 of the selected broadcast program data information in the searching process. And recording only the encoded voice data of the broadcast program data in the memory card.

In accordance with another aspect of the present invention, a method for storing DMB program data in a portable device for receiving a DMB program having a memory card coupled to a slot includes calculating a remaining amount of memory of the memory card in response to a storage command and selecting the selected DMB program. A storage step of storing the encoded video / audio data of the data in the memory card and monitoring the storage information; In response to a value obtained by subtracting the stored amount of information from the calculated amount of remaining memory being a preset value, warning the user of a low memory condition and a memory card replacement message for a preset time, and storing the received DMB program data in a buffer area; and; When the replacement of the memory card is detected within the preset time, the broadcast program data stored in the buffer is moved to the memory card, and then stored. The encoded video and audio data output from the tuner are continuously stored in the memory card. It is characterized by consisting of a continuous storage process for storing.

The storing in the buffer area may include a popup process of popping up a memory card replacement message window on a user monitor when DMB program data corresponding to a value obtained by subtracting a preset value from the remaining memory is stored in the memory card. And a post-popup storing step in which the user stores the received broadcast program data in the memory card for a predetermined period of time after executing the popup; and when the user responds to the popup while the received broadcast program is stored in the memory card. And a temporary storage process of storing the received broadcast program data in an internal buffer.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings in which: FIG. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be noted that the embodiments of the present invention described below are merely for explaining the spirit of the present invention to those skilled in the art, and detailed descriptions of well-known functions and configurations in the art that may unnecessarily obscure the gist of the present invention are provided. Note that it is omitted.

1 is a block diagram of a portable device for receiving and storing a digital multimedia broadcasting program according to a preferred embodiment of the present invention. In FIG. 1, reference numeral 10 denotes a portable device that can select and watch a DMB program.

The DMB broadcasting portable apparatus 10 shown in FIG. 1 includes a slot 32 to which a memory card 34, such as a Compact Flash (CF) memory card or a Secure Digital (SD) memory card, is inserted and coupled from the outside. A user input unit 38 including key buttons capable of generating a signal corresponding to an input, for example, channel selection, volume control, storage command, and the like, is provided.

When the user generates a user input for selecting the DMB broadcast by using the buttons arranged in the user input unit 38, it is connected to the microprocessor through the input-output interface 40 and the system bus 14. prosser (hereinafter referred to as "MPU").

The MPU 28 outputs a channel selection signal (CSS) to the DMB tuner 12 in response to a user input for the DMB broadcast selection. The DMB tuner 12 selectively demodulates a signal of a channel having a frequency corresponding to the channel selection signal CSS and outputs the encoded video / audio data EVAD to the system bus 14 and the demultiplexer 16. .

The demultiplexer 16 demultiplexes the received encoded video / audio data EVAD to convert the encoded video data (DVD), the encoded audio data (EAD), and the EGP data (EPGD) into the video reconstruction unit 18 and restore the audio. Output to section 20 and EGP buffer 26, respectively.

The EPG is data, such as EPG provided by a digital television, that includes program related additional information, for example, broadcasting start time, broadcast end time, program name, and the like, and is DMB data PAD (Program Associated Data). Included in the area of is transmitted. The MPU 28, which inputs the output of the EPG buffer 26, analyzes the EPG to obtain the total airing time of the DMB program data of the selected channel and the airing time from the present.

The video reconstructor 18 MPEG-4 decodes the received encoded image data EVD to decode and signal-process the encoded image to display an image received on the display panel 20, for example, a liquid crystal display (LCD) panel. Display.

The audio restoring unit 22 decodes the received encoded speech data (EAD) to MPEG-4, outputs them to the system bus 14, and simultaneously processes the decoded speech data (DVD) to audible sound through the speaker 24. Will output

In this state, the MPU 28 processes various events by storing and processing various data necessary for performing an operation in the memory 36. For example, processing of indicators such as operation simulation display and playback time is performed. In addition, the MPI 26 controls the PCMCIA interface 30 via the system bus 30 in response to a user's input, for example, a storage command (recording or recording command), to store the received DMB program data in the memory card. Store in (32).

In the embodiment of the present invention, the output of the DMB tuner 12 is connected to the system bus 14 and the demultiplexer 16, respectively, but the demultiplexer 16 is encoded from the system bus 14. It is also possible to simplify the signal line to input video and audio data.

The portable device according to the present invention configured as shown in FIG. 1 has a memory remaining amount, i.e., a recordable memory area of a memory card 34 inserted into a slot 32 through the PCMCIA interface 30 in response to a user's storage command. To store the encoded video and audio data output from the DMB tuner 12 in the memory card 32 to record the video and audio, or only the encoded audio data output from the demultiplexer 16. Recording mode stored in (32) can be selectively performed.

The recording mode is a mode which is executed when the remaining memory of the memory card 32 is capable of recording all received DMB program data, and the recording mode is capable of recording the entire received DMB program data of the memory card 32. When no audio data is recorded, only the audio data is recorded, thereby increasing the memory usage efficiency.

2 is a flowchart illustrating a method of receiving a digital multimedia broadcasting program and storing the same in a storage medium according to the first embodiment of the present invention.

First, an operation of a process of storing broadcast program data according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

When the DMB broadcast portable apparatus 10 configured as shown in FIG. 1 is operated, the MPU 28 reads the output of the input / output interface 40 in step S10 of FIG. 2 to search whether a broadcast program is selected. If it is determined that the broadcast program is not selected as a result of the search, the MPU 28 performs the corresponding operation mode previously performed in step S12.

In this state, when the user presses the channel selection button arranged on the user input unit 38 and selects it, the MPU 28 determines that the broadcast program selection signal is input through the input / output interface 40 in step S10 of FIG. In the process, the channel selection signal CSS corresponding thereto is provided to the DMB tuner 12. The DMB tutor 12 receives and demodulates DMB program data of a channel corresponding to the channel selection signal CSS and outputs coded video and audio data EVAD.

The coded video / audio data EVAD output from the DMB tuner 12 is decoded into the coded video data EVD, coded audio data EVD, and EPG data EPGD by the demultiplexer 16 as described above. Demultiplexed and output, the EPG buffer 26 provides the input EPG data to the MPU (28).

The video restoring unit 18 decodes the received encoded image data and processes the signal to display the corresponding image on the display panel 20. The audio restoring unit 22 decodes the received speech data and then processes the signal to generate a speaker. The audio signal is output to 24.

In this case, the MPU 28 analyzes the EPG signal output from the EPG buffer 26 in step S16 of FIG. 2 to obtain broadcast start information and broadcast end information of the selected broadcast program, and to broadcast according to the acquired information. The time is calculated and the output of the input / output interface 40 is read in step S18 to determine whether a storage command is input. If the storage command is not input in the search process, the process jumps to step S10 to perform a subsequent process.

As described above, the storage command in which the user is arranged on the user input unit 38 while the DMB broadcasting channel is selected and the video and audio of the DMB program data of the corresponding channel are being reproduced through the display panel 20 and the speaker 24. When the button is pressed, a storage command by user selection is input to the MPU 28 through the input / output interface 40.

The MPU 28 determines that a storage command has been input in step S18, and detects the remaining amount of memory of the memory card 34 inserted into the slot 32 through the PCMCIA interface 30 in step S20. In step S22, the MPU 28 searches and determines whether the selected broadcast program data can be recorded in the memory card 34. The search determination in the step S22 can be easily obtained by comparing the amount of information of the data to be received and the remaining memory amount during the total airing time of the selected broadcast program acquired in the step S16.

When it is determined that the entire broadcast program data selected in step S22 can be recorded in the remaining memory of the memory card 34, the MPU 28 inputs the first storage control signal to the PCMCIA interface 30 in step S24. .

The PCMCIA interface 30 is inserted from the DMB tuner 12 in response to the first storage control signal and coupled to the slot 32 by inserting the encoded video / audio data EVAD on the system bus 14. Supply to (34) and store. At this time, the coded video / audio data EVAD is recorded in the memory card 34 so that the selected broadcast program is recorded.

If it is determined that the entire broadcast program data selected in step S22 of FIG. 2 cannot be stored in the memory card, the MPU 28 determines that 1 / of the amount of broadcast program data information selected in the remaining memory of the memory card 34 in step S26. Search if you can record 2. If it is determined that 1/2 of the selected broadcast program data information can be recorded in the memory card 34 in step S26, the MPU 28 outputs a first storage control signal in step S28 to output a DMB tuner ( The encoded video / audio data outputted from 12) is recorded in the memory card 34.

Thereafter, the MPU 28 monitors the recording state in the memory card 34 in step S30 of FIG. 2 to search whether 1/2 of the selected broadcast program data information amount is stored. This search can be calculated using the remaining amount of memory of the memory card 34 detected in step S20, the amount of data information for the airing time of the selected broadcast program acquired in step S16, and the remaining amount of memory of the current memory card 34.

The memory card 34 determines that half of the broadcast program data selected in step S26 of FIG. 2 cannot be recorded in the memory card 34 or that corresponds to half of the broadcast program data selected in step S30. The MPU 28 determines that the memory is insufficient and outputs the second storage control signal to the PCMCIA interface 30 in step S32. In this case, the PCMCIA interface 30 is output from the demultiplexer 16 in response to the second storage control signal to insert the encoded voice data EAD through the system bus 14 into the slot 32. 34) Voice is recorded.

In the first embodiment, when storing the selected DMB program data, it is impossible to store the entire video and audio data of the selected broadcast program by detecting the amount of information of the program data on the remaining memory of the memory card and the broadcast time of the received DMB program. By selecting and storing only voice data, it is possible to solve the problem that the desired music file cannot be stored because of insufficient memory.

3 is a flowchart illustrating a method of receiving and storing a digital multimedia broadcasting program in a storage medium according to a second embodiment of the present invention, which detects and receives a time point when the remaining memory of the memory card 34 becomes insufficient during recording. The program data is temporarily stored, and the continuous storage operation is performed when the memory card 34 is newly replaced.

The operation of the second embodiment will be described in detail with reference to FIGS. 1 and 3 as described above.

As described above with reference to FIGS. 1 and 2, when the user selects a channel selection button and the video and audio of the corresponding channel are displayed on the display panel 20 and the audio signal is reproduced and output from the speaker 24, the MPU 28 of FIG. ) Inputs the output of the input / output interface 40 in step S38 of FIG. 3 to search whether a storage command by the user is input.

를 산출한다. If the search result storage command is input, the MPU 28 checks the available storage time of the memory card 34 inserted into the slot 32 through the PCMCIA interface 30 in step S30. That is, the remaining time of the memory card 34 is detected and the available time (or remaining amount) of DMB program data can be stored.

Calculate

의 값으로 누적시킨다. The MPU 28 performing the S40 process outputs a storage control signal to the PCMCIA interface 30 in the S43 process so that the encoded video / audio data EVAD on the system bus 14 is inserted into the slot 32. To 34, counting the stored time (or the amount of stored information)

Accumulate to the value of.

에서 누적된 값

을 감산한 차의 값이 미리 설정된 값

인지를 검색한다. 여기서

이라 함은 메모리 카드(34)의 메모리 잔량이 부족하다는 경고 메시지를 사용자가 인식한 수 메모리 카드(34)를 새로운 메모리 카드로 교체할 수 있는 시간동안 수신되는 방송 프로그램 데이터를 상기 메모리 카드(34)에 저장할 수 있는 정도 설정된 시간 또는 그에 대응하는 데이터 정보량에 대응하여 설정된 값으로 임의로 설정된다. 상기 미리 설정된 값은 약 3분 내외로 설정되는 것이 바람직하다. Thereafter, the MPU 28 determines the remaining amount of memory in step S44 of FIG. 3.

Accumulated in

The value of the difference after subtracting

Search for awareness. here

The memory card 34 receives broadcast program data received during a time when the user can recognize a warning message indicating that the remaining memory of the memory card 34 is insufficient to replace the memory card 34 with a new memory card. It is arbitrarily set to a value set in correspondence with the set time or the amount of data information corresponding thereto. The preset value is preferably set to about 3 minutes.

-

=

"이라고 판단되면, 상기 MPU(28)는 수신되는 방송 프로그램 데이터가 저장되는 메모리 카드(24)의 메모리 잔량이 부족하다고 판단하고, S46과정에서 비디오 복원부(18)를 제어하여 메모리 부족 경고 메시지 창이 표시패널(20)에 팝업 되도록 하고, S48과정에서 확인키가 선택되었는지를 확인한다. In the process S44 "

-

=

", The MPU 28 determines that the remaining memory of the memory card 24 that stores the received broadcast program data is insufficient, and in step S46 to control the video recovery unit 18 to run out of memory warning message window The display panel 20 is popped up, and it is checked whether a confirmation key is selected in step S48.

동안 메모리 카드(34)에 저장될 때까지 S46과정을 수행하고,

동안 메모리 카드(34)에 수신된 방송 프로그램 데이터가 저장된 경우 저장완료 메시지를 표시하고 저장 동작을 종료한다. If it is determined in step S48 that no confirmation key is input, the MPU 28 sets a predetermined time in step S60.

S46 process until the memory card 34 is stored in

If the broadcast program data received in the memory card 34 is stored, the storage completion message is displayed and the storage operation is terminated.

If the user selects the confirmation key arranged in the user input unit 38 in response to the warning message window popping up on the display panel 20, the MPU 28 is output from the DMB tuner 12 in step S50 and the system is selected. The encoded video / audio data input onto the bus 14 is temporarily stored in the memory unit 36 or an internal buffer, and it is searched whether the memory card 34 has been replaced.

In this state, when the user takes out the memory card 34 inserted in the slot 32 and inserts a new memory card, the PCMCIA interface 30 detects this and informs the MPU 28 that the new memory card is combined. . At this time, the MPU 28 detects that the new memory card 34 has been replaced, and moves and stores broadcast program data information stored in the memory 36 or the internal buffer to the memory card 34 in step S54, and then stores S56. If it is determined that the mobile storage is completed in the process, the PCMCIA interface 30 is controlled to store the encoded video / audio data output from the DMB tuner 12 in the memory card 34 in step S58.

If it is determined in step S52 that the memory card 34 is not replaced, the MPU 28 repeats the operation from step S50 until the memory 36 or the internal buffer becomes full (step S64), and the memory ( 36) Alternatively, when the buffer becomes full, a message indicating that recording can no longer be performed ends.

The second embodiment monitors the remaining memory of the memory card 34 to store received data in a temporary buffer when a memory shortage occurs, and continuously receives broadcast program data received thereafter when the memory card is replaced. By storing the memory card in the memory card, it is possible to prevent the storage operation due to insufficient memory.

As described above, the present invention detects the remaining amount of a storage medium in which a broadcast program selected and received by a DMB broadcasting receiver is stored, and selectively records only encoded video, audio data, or encoded voice data according to the remaining memory, so that even when the memory is insufficient, It is possible to record music files in which data is important. In addition, there is an advantage that it is possible to continuously record the data of the selected broadcast program by providing a time to replace the memory card when the remaining memory of the memory card is insufficient.

Claims (8)

A portable device for watching a digital multimedia broadcasting program, A tuner for receiving a digital broadcast corresponding to an input of a channel selection signal and outputting encoded video and audio data; A demultiplexer for demultiplexing the encoded video / audio data output from the tuner and outputting broadcast program additional information including the encoded video data, the encoded audio data, and the broadcast time of the program; Storing encoded video / audio data output from the tuner in response to a first storage control signal to a memory card, and continuously recording encoded audio data output from the demultiplexer in response to a second storage control signal to a memory card; A program data storage unit; A channel selection signal corresponding to a user input to the tuner, and among the first and second storage control signals according to the broadcast time of the broadcast program acquired from the broadcast program additional information according to a user's storage command and the remaining memory of the memory card. And a control unit for providing one to the program data storage unit. The digital multimedia information as claimed in claim 1, wherein the broadcast program additional information is EPG information including subtitle information such as broadcast start, broadcast end time, and broadcast time of DMB program data. Portable device for storing broadcast program data. The method of claim 1, wherein the controller is further configured to calculate a memory remaining amount of the memory card in response to a user storage command, and wherein the calculated memory remaining amount exceeds a total airtime of a broadcast program selected from the broadcast program additional information. And generating a first storage control signal so that the encoded video and audio data output from the tuner is stored in the memory card. The method of claim 1, wherein the controller is further configured to calculate a memory remaining amount of the memory card in response to a user storage command, and wherein the calculated memory remaining amount is smaller than a total broadcast time of a broadcast program selected from the broadcast program additional information. Outputting a first storage control signal for 1/2 of the calculated remaining amount of memory to store encoded video and audio data in the memory card, and then outputting a second storage control signal to store encoded audio data in the memory card. A portable device for storing digital multimedia broadcasting program data. In the digital multimedia broadcasting program data storage method of a portable device for receiving a digital multimedia broadcasting program, Detecting the EPG included in the received DMB program and acquiring additional information such as a broadcast start time and a broadcast end time of the selected broadcast program; A recordable judgment process of calculating a memory remaining amount of the memory card in response to a user storage command and searching whether the calculated memory remaining amount exceeds the program data information amount of the broadcast time obtained from the broadcast program additional information; A first storing step of storing encoded video / audio data of a received broadcast program in the memory card when the remaining memory amount exceeds a program data amount corresponding to the broadcast time of the selected broadcast program; And a second storing process of storing only encoded voice data of the received broadcast program in the memory card when the remaining memory amount is smaller than the amount of program data corresponding to the broadcast time of the received broadcast program. How to save program data. 6. The method of claim 5, wherein the second storing step comprises: a searching step of searching whether the calculated memory remaining amount can store 1/2 of the selected broadcast program data information; The recording process of storing the encoded video and audio data of the selected broadcast program data in the memory card when the half of the selected broadcast program data information is exceeded, and the remaining amount of memory calculated in the searching process is 1 of the selected broadcast program data information. And a recording process of storing only encoded voice data of the selected broadcast program data in the memory card when smaller than / 2. A digital multimedia broadcasting program data storage method of a portable device for receiving a digital multimedia broadcasting program having a memory card coupled to a slot, the method comprising: A storage step of calculating a memory remaining amount of the memory card in response to a storage command and storing encoded video and audio data of a selected DMB program in the memory card to monitor the storage information; In response to a value obtained by subtracting the stored amount of information from the calculated remaining amount of memory, the user is alerted to a low memory condition and a memory card replacement message for a preset time, and stores received digital multimedia broadcasting program data in a buffer area. Process of doing; Continuous storage for continuously storing the encoded video and audio data output from the tuner after transferring the program data stored in the buffer to the memory card when the replacement of the memory card is detected within the preset time. Digital multimedia broadcasting program data storage method of a portable device, characterized in that consisting of a process. The method of claim 7, wherein the storing of the buffer area comprises popping a memory card replacement message window to the user monitor when the digital multimedia broadcasting program data corresponding to a value obtained by subtracting a preset value from the remaining memory is stored in the memory card. A pop-up process for storing the received broadcast program data in the memory card for a predetermined time after the pop-up is executed, and a user responding to the pop-up while the received broadcast program is stored in the memory card. And storing the received broadcast program data in an internal buffer.

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