KR100293466B1 - Method for working game of the digital TV - Google Patents

Abstract

PURPOSE: A method of operating games of a digital TV is provided to supply game information to additional information, so that a user downloads or deletes a demanded game in a CPU as well as reducing a manufacturing cost. CONSTITUTION: A digital TV extracts game service information from received satellite broadcasting signals(S1), and checks a user's preferred game lists(S2). The digital TV checks whether the user's demanded game exists(S3). If so, the digital TV decides whether a memory for storing the game exists(S4). If so, the digital TV downloads the game to store the game in a memory of a CPU(S5). If the demanded game does not exist, the digital TV decides whether a memory for storing the first game exists(S6). If so, the digital TV downloads the first game from the lists and stores the game in the memory of the CPU(S7). A digital TV receiver extracts game service information from a transport stream, and checks whether a game list selected by a user exists. If so, the digital TV receiver checks a memory amount. If the game selected by the user is stored in the memory, the digital TV receiver stores the game service information in the memory(S9).

Description

Method for working game of the digital TV}

The present invention relates to a digital TV, and more particularly, to a digital TV game operating method in which a game program of an additional information service is stored in a memory of a receiver and a game can be used when a user selects the digital TV.

In general, digital satellite broadcasting requires multiplexing of a TV signal. When multiplexing such a TV signal (video / audio signal), each of the video and audio is divided into a string of bits of appropriate length called a 'packet', The video and audio packets are appropriately switched by attaching additional information such as a header and transmitted to the repeater (communication satellite) in a time division transmission method.

The packet transmitted through the repeater (communication satellite) is restored to the original signal through the subscriber's Digital Brodcasting System (DBS) receiver, thereby enabling viewing of the channel transmitted from the broadcasting station.

At this time, the broadcasting station converts the video, audio and transmission data signals into a scrambled digital signal according to the Moving Picture Experts Group (MPEG) standard. It consists of a stream to make one TV signal stream.

The packet stream is a signal composed of 188 bytes, and the signal may be divided into a header and a payload portion.

The header part includes information indicating the start of a signal and a PID (Paket Identifier) number indicating a signal of a payload couple.

The payload portion contains image information, audio information or additional information to be transmitted.

The PID (Paket Identifier) number provides a means for demultiplexing a time multiplexed signal. The PID identifier determines whether the current packet is a video packet, an audio packet, or an additional information (SI) packet. Can be identified.

The video and audio standard is a standard for compressed video and audio signal sequences. Video, audio, and other additional information are time-multiplexed and carried in multiple transport stream packets, which are also distinguished by PID numbers.

Hereinafter, with reference to the accompanying drawings as follows.

1 is a block diagram schematically illustrating a general digital TV receiver, and FIG. 2 is a block diagram illustrating an interactive TV according to the prior art.

A typical digital TV receiver includes an antenna 1, a tuner 2, a demodulator 3, a preprocessing error correction 4, a CI connector 5, and a CAS 6, as shown in FIG. With a smart card (7), IEEE 1394 interface (8), main controller (9), ROM (10), RAM (11), PAL encoder (12), low speed data (13), RGB 14, PAL O / P 15, MPEG Video Decoder 16, UHF Modulator 17, 16M DRAM 18, MPEG Audio Decoder 19, Audio D / A The converter 20, the RAM 21, the MPEG demux 22, the front panel control part 23, the IR receiver 24, and the modem 25 are comprised.

The satellite signal transmitted through the antenna 1 is selected by the tuner 2 according to the user's channel selection, and the channel signal selected by the tuner 2 is input to a demodulator and converted into a transport stream TS. do.

The preprocessing error correction 4 receiving the transport stream TS corrects the error of the transport stream TS, and if the broadcast selected by the tuner 2 is a pay broadcast, the CAS connected to the CI connector 5 ( 6) have a smart card (7) and the IEEE 1394 interface (8) is required for communication with other external devices.

The transport stream TS corrected by the preprocessing error correction 4 is separated into an image signal, an audio signal, and other additional information in the MPEG Demux 22.

Here, the separated video signal is transmitted to the MPEG video decoder 16, the audio signal to the MPEG audio decoder 19, and other additional information to the main controller 9, and the video signal is transmitted to the MPEG video decoder 16. The video signal coded by is output to the RGB skater 14 or the PAL O / P 15 via the PAL encoder 12 for TV output.

The audio signal coded by the MPEG audio decoder 19 is converted into an analog signal by the D / A converter 20, and other additional information transmitted to the main controller 9 is stored in the RAM 11 to be selected by the user. According to the output on the screen.

The digital TV receiver configured as described above uses a service provided by a broadcast service provider or an interactive service provider and uses the same. Referring to FIG.

As shown in FIG. 2, the broadcast service provider 30, the interactive service provider 31, the broadcast network adapter 32, the interactive network adapter 63, the broadcast delivery medium 34, It consists of an interactive network 35, a digital TV receiver 36, and a user 37.

The digital TV receiver 36 is composed of a broadcast interface module 36a, an interactive interface module 36b, and an STU 36c.

In order to use the service provided by the digital TV receiver to the broadcast service provider 30 or the interactive service provider 31, the broadcast transmission medium 34 or the conversation is performed through the broadcast network adapter 32 or the interactive network adapter 33. Is passed to the network 35.

The digital TV receiver 36 has interfaces 36a and 36b for receiving a service transmitted through the broadcast transmission medium 34 and the interactive network 35, and the interfaces 36a and 36b. The service delivered through the STU (36c) is output to the screen is delivered to the user 37.

The digital TV receiver according to the prior art has the following problems.

First, the game program stored in the ROM cannot be modified according to the user's preference because it must be stored in the ROM connected to the central control unit.

Second, it has overhead depending on the size of the ROM.

Third, the user must have a modem using a public switched telephone network (PSTN) network because the interactive game service provided to the interactive service provider must be used.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a game download method of digital TV that can be processed in software by adding a game program to the additional information.

1 is a block diagram schematically showing a general digital TV

2 is a block diagram schematically illustrating an interactive TV according to the related art.

3 is a flow chart showing a game operation method of the digital TV according to the present invention.

4 is a flowchart illustrating a game deleting method according to the present invention.

According to an aspect of the present invention, there is provided a method of downloading a game of a digital TV, including extracting game service information from a received satellite signal, examining a user's favorite game list from the extracted information, and a desired game from the surveyed game list. Determining whether a game can be stored according to the result of the determination; if the desired game exists according to the determination result, determining whether the selected game can be stored after the free memory amount; and if the selected game can be stored according to the determination result, Downloading the game and storing it in the RAM of the CPU; if the desired game does not exist according to the determination result, determining whether the first game can be stored after checking the amount of free memory; and according to the determination result, Download the game from the list and save it to the CPU's RAM Makin made to also have that characteristic.

When broadcast service providers send game services to additional information of a transport stream, they are received by a digital receiver, stored in a spare RAM connected to a CPU, loaded into a memory (RAM) according to a user's selection, and the game starts.

The data structure of the game service provided by the broadcast service provider will be described with reference to Table 1 as follows.

Syntax NO game_service_descriptor () {game_numberfor (i = 0; i <N; i ++) {game_name_lengthfor (i = 0; i <M; I ++) {char} game_typegame_lengthfor (i = 0; i <N; I ++ _ {char}} 123456

The first is the number of game services currently provided, the second is the length of the name of the game, the third is the name of the game provided, and the fourth is the game type, that is, the genre of the game.

In addition, the fifth is the size of the game data to be downloaded, the sixth is the actual game data.

In the fourth example, a value 1 represents a role playing game (RPG), a value 2 represents a shooting game, a value 4 represents a strategy simulation game, and a value 4 represents a guitar game.

The process of storing the game service data structure in the RAM of the digital receiver, loading it into the CPU according to the user's selection, and starting the game is illustrated in FIG. 3.

Hereinafter, with reference to the accompanying drawings as follows.

3 is a flowchart illustrating a game download method of a digital TV according to the present invention, and FIG. 4 is a flowchart illustrating a method of deleting a game of a digital TV according to the present invention.

Referring to FIG. 3, game service information is extracted from the received satellite broadcasting signal (S1), and a list of user preferred games is examined (S2).

It is determined whether the game desired by the user exists from the checked list (S3), and if there is a desired game according to the determination result, it is determined whether there is an amount of free memory for storing the desired game (S4).

If the desired game can be selected and stored according to the determination result, the desired game is downloaded and stored in the memory of the CPU (S5).

If the desired game does not exist according to the determination result, it is determined whether there is an amount of free memory for storing the first game (S6). If there is an amount of free memory according to the determination result, the first game in the game list is downloaded. And store in the CPU memory (S7).

Therefore, the digital TV receiver extracts game service information from the transport stream and checks whether there is a game list selected by the user through an EPG program.

If the desired game exists, the amount of available memory is examined. If the selected game can be stored in the currently available memory, the game service information is stored in the memory.

On the other hand, if the selected game can not be stored, the program is terminated. If the user's desired game does not exist, the current available memory amount is examined and the game service information can be stored.

If the user wants to delete the downloaded game as described above with reference to Figure 4 as follows.

First, the required amount of memory is checked (S11), and the size of the game stored in the current memory (RAM) is checked (S12).

It is determined whether there is a game to be deleted among the stored games (S13). If there is a game to be deleted according to the determination result, the corresponding game is deleted from the list and the game contents are deleted (S14-S15).

In the game operation method of the digital TV according to the present invention, by providing game information to additional information, a desired game can be downloaded or deleted in the CPU according to a user's selection, and manufacturing cost can be lowered.

Claims (2)

Extracting game service information from a received signal; Examining a list of games preferred by the user from the extracted information; Determining whether a desired game exists in the surveyed game list; Determining whether to store the selected game after checking the amount of free memory if a desired game exists according to the determination result; If the selected game can be stored according to the determination result, downloading the selected game and storing the selected game in the memory of the CPU: If the desired game does not exist according to the determination result, determining whether the first game can be stored after checking the amount of free memory; If the game can be stored according to the determination result, the method of using a digital TV comprising the step of downloading the game in the game list as much as possible and storing in the CPU memory Investigating the required amount of memory; Examining the size of the game currently stored in memory; Determining whether there is a game to be deleted among the stored games due to insufficient memory; If there is a game to be deleted according to the determination result, deleting the game from the list; Digital TV game operating method characterized in that the step of deleting the game content after deleting the game from the list.