KR100762167B1 - Apparatus and method for digital broadcast program recording in portable communication system - Google Patents

Abstract

An apparatus and a method for recording a digital broadcast in a mobile terminal are provided to store information of a digital broadcast to be recorded and authentication information of a user who tries to perform recording, so that when the user wants to watch the recorded program later, the authentication information can be checked to thus prevent a different person from watching the program. An image processing unit(110) records a digital broadcast received upon receiving an instruction of a controller(100). An authentication information card(108) includes the first information, namely, user information, of a mobile terminal. A memory unit(102) stores the first information of the authentication information card obtained by the controller(100) in order to record the digital broadcast. In recording the digital broadcast, the controller(100) obtains the first information from the authentication information card(108), stores it in the memory unit(102), and processes to record the digital broadcast.

Description

Apparatus and method for recording digital broadcasting in a portable terminal {APPARATUS AND METHOD FOR DIGITAL BROADCAST PROGRAM RECORDING IN PORTABLE COMMUNICATION SYSTEM}

1 is a block diagram showing the configuration of a portable terminal according to the present invention;

2 is a flowchart illustrating a process for recording a CAS channel in a portable terminal supporting a digital broadcast reception function according to an embodiment of the present invention;

3 is a flowchart illustrating a procedure for watching a recorded broadcast of a CAS channel in a portable terminal supporting a digital broadcast reception function according to another exemplary embodiment of the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal supporting a digital broadcast reception function, and more particularly, to an apparatus and method for recording a digital broadcast channel (CAS channel) to which a CAS (Conditional Access System) technology is applied.

Recently, with the rapid development of portable terminals, portable terminals capable of wireless voice calls and information exchange have become necessities of life. In the early stages of the spread of portable terminals, it was recognized that they could be simply carried and wirelessly talked. However, with the development of the technology and the introduction of wireless Internet, the portable terminals are not only for the purpose of simple phone calls or schedule management but also for games and short distances. The application range of image capture by remote control and digital camera equipped with communication is getting bigger and satisfying user's desire.

In addition, recently, with the development of digital broadcasting technology, a portable terminal supporting a digital broadcasting reception function has been developed, thereby enabling the viewing of digital multimedia broadcasting on the move, which has received much attention from users.

In addition, such a portable terminal also supports a recording function that allows a user to not watch the digital broadcast or to watch the digital broadcast in the future again.

However, the recording function can record a channel that a user who uses the portable terminal can watch without any limitation, but there is a problem that a CAS (Conditional Access System) channel can be distributed to others. It is restricting.

The CAS technology refers to a technology that restricts reception of the digital broadcast, such as a paid channel, so that only authorized users can use the service through additional payment.

Accordingly, there is a need for an apparatus and method for recording the CAS channel and watching the recorded CAS channel broadcast.

SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus and method for recording a CAS channel in a portable terminal capable of receiving digital broadcasting.

Another object of the present invention is to provide an apparatus and method for watching a recorded broadcast of a CAS channel in a portable terminal capable of receiving digital broadcast.

Another object of the present invention is to provide an apparatus and method for watching a recorded broadcast of a CAS channel using user authentication information in a portable terminal capable of receiving digital broadcast.

According to a first aspect of the present invention for achieving the above object, an apparatus for recording a digital broadcast comprises an image processing unit for recording a digital broadcast received under the instruction of the control unit, and recording the digital broadcast obtained by the control unit; A memory unit for storing first information including authentication information of the user to be recorded and the digital broadcasting information to be recorded; and acquiring and storing authentication information of the user at the time of recording the digital broadcast; And the controller for processing to record the video.

According to a second aspect of the present invention for achieving the above objects, a method for recording a digital broadcast in a portable terminal, if the digital broadcast recording request is detected, the authentication information of the user who performed the recording request and the recording And acquiring and storing first information including digital broadcast information, and storing and storing the first information, and then recording and storing the digital broadcast.

According to a third aspect of the present invention for achieving the above objects, a method for playing a recorded broadcast includes the steps of: when the request for playing the recorded broadcast is detected, checking whether the user who requested the playback is capable of viewing the recorded broadcast; And when the user who requested the playback is the user who can watch the recorded broadcast, as a result of the checking, reproducing the recorded broadcast.

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

In the following description, when storing a channel of a digital broadcast using the CAS function, information of a user authorized to watch the broadcast is stored together, and only the authorized user uses the stored user information to watch the recorded broadcast. An apparatus and method for the same will be described.

In addition, the digital broadcasting is meant to include all of Digital Multimedia Broadcasting (DMB), Digital Video Broadcasting (DVB), Digital Audio Broadcasting (DAB), and the like.

1 is a block diagram illustrating a configuration of an apparatus for recording a CAS (Conditional Access System) channel in a portable terminal according to the present invention.

Referring to FIG. 1, the portable terminal includes a control unit 100, a memory unit 102, an input unit 104, a communication unit 106, an authentication information card 108, an image processing unit 110, and an audio processing unit 114. And a display unit 112, and the controller 100 may include an authentication information confirming unit 101.

The controller (MPU: Micro-Processer Unit) 100 controls the overall operation of the portable terminal. For example, a user authentication stored in the authentication information card 108 is performed during the recording and processing of digital broadcasting to which CAS technology is applied according to the present invention in addition to the usual functions, and performing processing and control for voice call and data communication. Information is stored in an authentication information database (not shown) of the memory unit 102 of the portable terminal together with digital broadcast information (eg, broadcast name, storage file name, etc.) to be recorded.

In addition, when detecting the playback request of the stored recording broadcast, the control unit 100 causes the authentication information checking unit 101 to transmit the authentication information (eg; user authentication information card 108) of the user who requested the playback. Stored information) and the authentication information of the user who recorded the digital broadcast are the same authentication information.

The image processor 110 performs a function of an image decoder and an image encoder, decodes the image data, outputs an image signal to the display unit 112, and provides audio data to the audio processor 114.

In addition, when detecting a recording request by the user, the image processor 110 encodes image data and audio data having formats such as MPEG4 and H.263 into playable image data.

The voice processing unit 114 is connected to the speaker 116 and the microphone 118, and converts the received audio data from the image processing unit 110 into an analog voice signal and outputs it to the speaker 116 through a predetermined process. .

The memory unit 102 includes a read only memory (ROM), a random access memory (RAM), and a flash ROM. The ROM stores microcode and various reference data of a program for processing and controlling the controller 100.

The RAM is a working memory of the controller 100 and stores temporary data generated during execution of various programs. In addition, the flash ROM stores various updatable storage data such as a phone book, an outgoing message, and an incoming message.

In addition, the memory unit 102 includes an authentication information database including information (eg, a broadcast name, a file name, etc.) of digital broadcasting to be recorded and authentication information of a user to perform the recording.

The authentication information card (e.g., SIM card) 108 may include user information of the portable terminal (e.g., Electronic Serial Number (ESN) of the portable terminal, a certificate, and an International Mobile Station Identity (IMSI)). Etc.).

The input unit 104 includes 0 to 9 numeric key buttons, a menu button (menu), a cancel button (clear), an OK button, a call button (TALK), an end button (END), an internet access button, a navigation key ( Or a plurality of function keys such as arrow keys) buttons and character input keys, and provides key input data corresponding to a key pressed by the user to the controller 100.

The display unit 112 displays status information generated during the operation of the portable terminal, a limited number of characters, a large amount of moving images and still images, and the like. The display unit 112 may use a color liquid crystal display (LCD).

The communication unit 106 processes the radio frequency signal received through the antenna as a baseband signal or modulates the baseband signal into a radio frequency signal and transmits the same through the antenna. In addition, the digital broadcasting service provider receives the digital broadcast transmitted to the control unit 100.

2 is a flowchart illustrating a procedure for recording a broadcast of a Conditional Access System (CAS) channel in a portable terminal supporting a digital broadcast reception function according to an embodiment of the present invention.

2 is a process of recording the broadcast according to a user's request while watching a CAS channel broadcast, and a description of an authentication process for confirming whether the user is permitted to watch the digital broadcast before viewing the digital broadcast will be omitted.

First, the control unit 100 outputs the digital broadcast to the display unit 112 in step 201, and then proceeds to step 203 and checks whether a recording request of the output digital broadcast is generated from the user. If the recording request does not occur, the controller 100 proceeds to step 215 to perform a corresponding function (eg, digital broadcast output).

On the other hand, when the recording request occurs, the control unit 100 proceeds to step 205 to obtain user authentication information stored in the authentication information card 108, and proceeds to step 207 the user obtained in step 205 Store the information in the authentication information database. Here, the user information may be stored together with broadcast information (eg, broadcast name, storage file name, etc.) that the user wants to record.

In operation 209, the controller 100 instructs the image processor 110 to perform recording of the digital broadcast. In step 211, the controller 100 determines whether a user wants to stop recording. If the request is not detected, the controller 100 repeats the process of step 211.

On the other hand, when detecting the request, the control unit 100 proceeds to step 213 and stores the recorded broadcast recorded by the image processing unit 110 in the memory unit 102. Here, the recording broadcast is stored in the memory unit 102 of the portable terminal without being stored in a memory card (eg, a multimedia card (MMC) or a compact flash card (CF card) that can be detached or installed). Prevents users from watching recorded broadcasts.

Thereafter, the controller 100 ends the present algorithm.

3 is a flowchart illustrating a process of playing a recorded broadcast of a Conditional Access System (CAS) channel in a portable terminal according to the present invention.

Referring to FIG. 3, the controller 100 first checks whether a recording broadcast reproduction event occurs by a user in step 301. Here, the recording broadcast reproduction event refers to a user's request to play the recording broadcast stored in the portable terminal.

If the recorded broadcast playback event does not occur, the controller 100 proceeds to step 311 to perform a corresponding function (eg, a standby mode).

On the other hand, when the recording broadcast reproduction event occurs, the controller 100 proceeds to step 303 and instructs the authentication information checking unit 101 to obtain authentication information of the user who performed recording of the recording broadcast requested by the user. do.

Herein, the authentication information of the user is information for confirming whether only a user who can watch a digital broadcast to which CAS technology is applied is able to record the digital broadcast and to be able to watch again later. The authentication information checking unit 101 may search for and obtain the memory unit 102.

In operation 305, the controller 100 transmits the user authentication information of the user who wants the authentication information confirmation unit 101 to play the recording broadcast from the user authentication information card (eg, the SIM card) 108. After instructing to acquire, the process proceeds to step 307 to compare the user authentication information obtained in step 303 and step 305.

If the user authentication information in step 303 and the user authentication information in step 307 do not coincide with each other (when the user who performed the recording and the user information for reproducing the recorded broadcast are different), the controller 100 In step 313, a message indicating that the recording broadcast cannot be reproduced is output to the display unit 112, and the algorithm ends.

On the other hand, when the user who recorded the digital broadcast and the user who wants to reproduce the recorded broadcast match, the controller 100 proceeds to step 309 to play the recorded broadcast, and then ends the present algorithm.

As described above, when a user who is permitted to watch a digital broadcast to which CAS technology is applied stores the digital broadcast, the user's information is stored, so that only the same user as the stored user information when viewing the recorded broadcast is recorded. You can limit the viewing of the broadcast.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

As described above, by storing the information of the digital broadcast to be recorded and the user authentication information to be recorded when recording the digital broadcast, when the user later wants to re-view the recorded broadcast, the authentication information is checked. You can prevent others from watching.

Claims (13)

An apparatus for recording a digital broadcast, An image processing unit for recording digital broadcasts received by the controller; An authentication information card including first information which is user information of the portable terminal; A memory unit for storing first information of the authentication information card obtained by the controller when recording the digital broadcast; And the control unit which acquires the first information from the authentication information card and stores the first information in the memory unit, and then records the digital broadcast. The method of claim 1, The first information of the authentication information card is. And use the second information as information on a user who has requested to view the recorded broadcast. The method of claim 1, The control unit, During playback of the recorded broadcast, And reproducing the recorded broadcast when the first information stored in the memory unit and the second information stored in the authentication information card are the same information. The method of claim 3, wherein The first information is, Authentication information of the user who wants to perform the recording of the digital broadcast, characterized in that it comprises at least one of a unique number (ESN; Electronic Serial Number) of the portable terminal, a certificate, and an International Mobile Station Identity (IMSI) Device. The method of claim 4, wherein The first information is, The apparatus may further include any one of a broadcast name, channel information, and a stored file name which are information of the digital broadcast to be recorded. In the method for recording a digital broadcast in a portable terminal, When detecting a digital broadcast recording request, acquiring and storing first information which is authentication information of a user who performed the recording request; And after storing the first information, recording and storing the digital broadcast. The method of claim 6, The first information is, Authentication information of the user who wants to perform the recording of the digital broadcast, characterized in that it comprises at least one of a unique number (ESN; Electronic Serial Number) of the portable terminal, a certificate, and an International Mobile Station Identity (IMSI) How to. In the method for playing a recorded broadcast, Detecting a request for playing a recorded broadcast, checking whether the user who requested the played back is a user who can watch the recorded broadcast; And reproducing the recorded broadcast when the user who requested the playback is the user who can watch the recorded broadcast as a result of the checking. The method of claim 8, If the authentication information does not match, And outputting a message indicating that the recorded broadcast cannot be reproduced. The method of claim 8, The process of checking whether the user can watch the recorded broadcast is Acquiring first information which is authentication information of a user who has recorded the digital broadcast and second information which is information of a user who has requested to play the recorded broadcast; And comparing the obtained first information with the second information. The method of claim 10, The first information is, Authentication information of the user who wants to perform the recording of the digital broadcast, characterized in that it comprises at least one of a unique number (ESN; Electronic Serial Number) of the portable terminal, a certificate, and an International Mobile Station Identity (IMSI) How to. The method of claim 10, The second information is, And at least one of an electronic serial number (ESN), a certificate, and an international mobile station identity (IMSI) of the portable terminal as information of a user who requests the reproduction of the recorded broadcast. . The method according to claim 7 or 11, wherein The first information is, And at least one of a broadcast name, channel information, and a stored file name which are information of the digital broadcast to be recorded.

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