KR20010011600A - Receiving Method of Broadcasting Signal - Google Patents

Abstract

PURPOSE: A method of receiving a broadcasting signal is to provide a digital broadcasting signal including various services in a type of a united specification, thereby efficiently using information for realizing a user interface. CONSTITUTION: A broadcasting signal respectively having a different specification is tuned to store all channels in a type of a list. The list is analyzed to be standardized to a united identification whenever a user changes a service. And the standardized identification is displayed and then the user selects a channel from the listed and displayed lists. Then, a controller checks whether the channel selecting operation is completed. In the method, the operation of analyzing the list is to standardize the united identification corresponding to channel information of the broadcasting signal having the different specification, EPG(electric program guide) information and changing in the service by a user. Further, a new system list after the operation of analyzing the list is added. The standardized identification is stored in DRAM(dynamic random access memory).

Description

Receiving Method of Broadcasting Signal

The present invention relates to a television receiving method, and more particularly, to a broadcast signal receiving method capable of receiving digital broadcast signals (cable, terrestrial, satellite broadcasting, etc.) including various services.

In digital TV broadcasting, since signals transmitted from a broadcasting station to a home as well as in a TV receiver are all digital signals, they provide clearer and vivid sound quality than analog. In digital broadcasting, a program compressed and multiplexed by the MPEG standard is transmitted. One program can be transmitted on one channel or multiple programs can be transmitted. For example, one HD (High Definition) class program or four Standard Definition (SD) class programs may be transmitted on the same channel. If a plurality of programs are multiplexed and transmitted on one channel, a program searching method for selecting and viewing one program among them is required.

In the future, digital broadcasting methods will be largely maintained in three forms (cable, satellite, and terrestrial waves), and development of digital televisions capable of receiving all three types is required. Today's digital television requires a database of service information to access three broadcasts. In Europe, most operators of cable, satellite and terrestrial systems have adopted the DVB-SI standard, which is advantageous for implementing integrated service information. However, in our country, standards for implementing integrated service information such as Europe are not adopted. Therefore, when three broadcasts are simultaneously received by the digital television, there is an inconvenience in selecting a channel.

The technical problem to be achieved by the present invention is to provide a broadcast signal receiving method that can receive a digital broadcast signal (cable, terrestrial, satellite broadcast, etc.) including a variety of services.

1 is a block diagram showing the configuration of a broadcast signal receiving apparatus.

2 is a flowchart illustrating the operation of a broadcast signal receiving method according to the present invention.

According to an aspect of the present invention, there is provided a method for receiving a broadcast signal, the method including: (a) tuning a broadcast signal of different standards and storing all channels in a list format; (b) parsing the list and normalizing the list to an integrated ID each time a user changes a service; And (c) a display of the standardized ID in step (b) and a selection step by the user.

Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

1 is a block diagram showing the configuration of a broadcast signal receiving apparatus.

The apparatus shown in FIG. 1 includes a plurality of tuners 10 each configured to tune different broadcasts, a demultiplexer 11 to demultiplex the tuned broadcast signal, and a demultiplexed broadcast signal. DRAM (Dinamic Read Access Memory) (12), NVRAM (13) which stores all channels of tuned broadcast signal in list format, controls the whole system and broadcasts every time the user changes service (by external input signal). A control unit 14 for analyzing the information and performing database operations, a signal processing unit 15 for performing signal processing for displaying broadcast information by a user's service selection, and a display unit 16 for displaying signal processed broadcast information It consists of.

2 is a flowchart illustrating the operation of a broadcast signal receiving method according to the present invention.

The flowchart shown in FIG. 2 alternately selects each tuner stage for each system and stores all the receivable channels in a list format (20), and analyzes broadcast information transmitted every time a user changes a service (21). Determining whether the system exceeds the full channel band (22), adding a new system list (23), displaying a channel broadcast corresponding to the selected service (24), and checking whether the selected channel broadcast is confirmed. Determination step 25 is composed.

Next, the present invention will be described in detail with reference to FIGS. 1 and 2.

Each system tuner 10 is alternately selected to store all receivable channels in a list format (step 20). The tuner 10 is configured in plural so as to tune all signals according to the digital broadcasting method. That is, the tuner 10 is composed of a satellite broadcast tuner, a terrestrial tuner, and a cable broadcast tuner to tune all channel broadcast signals induced by the antenna.

When the broadcast signal is received through the tuner 10, the controller 14 stores all the receivable channels in the NVRAM 13 in a list format.

A system front-end means (not shown) is provided inside the tuner 10 to transmit a pure transford packet to the demultiplexer 11 in a block including demodulation and FFC for each signal extracted through the tuner 10. do. Transport stream data through the demultiplexer 11 is stored in an order in a cyclic-buffer (not shown) based on a specific address of the DRAM 12.

The control unit 14 reads out the configuration state of the system front-end every time the user changes the service by using an external input signal (key attached to a remote controller or a television panel), analyzes broadcast information, and adds it to the channel list (21). step).

At this time, the controller 14 receives the EPG (Electric Program Guide) information broadcast for each network belonging to the user when the program changes, and integrates the ID into the following structure.

The structure of EPG information broadcast through a specific program is as follows.

struct_PROGRAMME {

programme_contents;

struct_PROGRAMME * next;

struct_PROGRAMME * previous;

};

The list structure of all programs broadcast through a specific system is as follows.

struct_TREE {

multiplex / transponder_Index;

program_Index;

program_content;

struct_PROGRAMME * programme;

struct_TREE * right;

struct_TREE * left;

};

The list structure for all multiplex / transponders broadcast through a particular system is as follows.

struct_SYSTEM {

which_system;

struct_TREE * tree;

};

If the broadcast signal is standardized according to the above three structures, the broadcast signal having different IDs can be integrated and provided to the user. The standardized ID (IDentify) is stored in the DRAM 13.

After analyzing the broadcast signal of the control unit 13, it is determined whether the system exceeds the full channel band (step 22).

In the case of exceeding the full channel band for each system, a new system list is added through the structured operation (step 23).

In operation 24, the channel broadcast corresponding to the service selected by the user is displayed. At this time, the display unit 16 displays the listed service information. When the user selects the desired listed service information, the signal processing unit 15 processes the signal so that it can be displayed and outputs it to the display unit 16.

In operation 25, it is determined whether a selected channel broadcast operation is confirmed.

The present invention is not limited to the above-described embodiments and can be modified by those skilled in the art within the spirit of the invention.

As described above, according to the present invention, the digital broadcasting signal (cable, terrestrial wave, satellite broadcasting, etc.) including various services can be provided to the user in an integrated standard to efficiently use information for implementing a user interface. have.

Claims (3)

In the broadcast signal receiving apparatus, (a) tuning broadcast signals of different standards and storing all channels in a list format; (b) parsing the list and normalizing the list to an integrated ID each time a user changes a service; And (c) a broadcast signal receiving method comprising the step of displaying a standardized ID and selecting by a user in step (b). The method of claim 1, wherein the list analysis of step (b) is performed. And a method for standardizing an integrated ID in response to channel information, EPG information, and service change of a user of broadcast signals of different standards. The method of claim 1, wherein after the step (b), a new list is added when a standard range for different broadcast signals is exceeded.