KR19990026848A - How to Scroll the Guide Screen of a Satellite Broadcast Receiver - Google Patents

Abstract

The present invention relates to a method for scrolling a guide screen of a satellite broadcast receiver capable of quickly scrolling a screen based on a user's key signal on a program guide screen for each channel of a satellite broadcast receiver. When a request key signal is input, a first step of displaying the stored program information for each channel on a guide screen of a predetermined form; when a key signal for scrolling the guide screen is input, a cursor displayed in the guide screen is located. A second step of reading program information of a specific channel from the memory unit, a third step of scrolling and displaying the read program information of the specific channel, and if the scroll signal is continuously input, the process after the second step is performed. Repeat step 4, the scroll signal is not input If a predetermined predetermined time elapses, a fifth step of reading and displaying program information for each channel stored in the memory unit is displayed.

Description

How to Scroll the Guide Screen of a Satellite Broadcast Receiver

The present invention relates to a satellite broadcast receiver, and more particularly, to a method of scrolling a guide screen of a satellite broadcast receiver suitable for quickly scrolling a program guide screen of a satellite broadcast receiver.

As is well known, satellite broadcasting is capable of receiving broadcast signals from ground stations (broadcasting earth stations) using broadcast satellites in a stationary orbit about 36,000 kilometers above the equator, and receiving them directly from the satellite receiving antennas in each home. The broadcasting system is a broadcasting system in which the selection range of information is greatly expanded compared to the conventional terrestrial or cable broadcasting system.

The satellite broadcast receiver used for such a satellite broadcast receives a bitstream provided from a satellite, processes a broadcast signal of a selected channel, and then provides it to a display device (for example, a TV).

In this case, the bit stream provided from the satellite includes various information such as broadcast signals (video data and audio data), event information table (EIT), and time data table (TDT) for each channel.

Therefore, a general satellite broadcast receiver is provided with various menu screens for displaying such various information. Among such menu screens, a broadcast program guide screen for guiding a broadcast program for each channel is included.

In the conventional broadcast program guide screen for each channel, the horizontal axis is composed of time and the vertical axis is composed of each channel to display information on the broadcast program of each channel for each time zone, and the user selects a key provided in the key input means. By moving the cursor on the screen to scroll the program for each channel and time zone on the screen (scroll), it is possible to receive a guide of the program for each channel.

However, in the conventional scrolling process of the guide screen, since a large amount of information displayed on the screen, that is, broadcast program information for each channel, there is a great difference between the user's key manipulation speed and the displayed screen speed for screen scrolling.

In other words, there is a problem in that rapid screen scrolling is not performed because a delay occurs at a point in time when the next screen data is read from the stored memory means in response to the user's key operation and the input key signal and displayed on the screen.

Accordingly, the present invention is to solve the above-mentioned problems of the prior art, by adaptively controlling the screen information of the portion that the cursor is moved to scroll the screen in the guide screen displayed on the screen, it is possible to perform a quick screen scroll It is an object of the present invention to provide a scrolling method of a guide screen of a satellite broadcasting receiver.

In order to achieve the above object, the present invention provides a method for scrolling a guide screen in a satellite broadcast receiver that receives a satellite broadcast signal provided through a satellite and stores broadcast program information for each channel extracted from each broadcast signal in a memory unit. In claim 1, When the guide screen request key signal for the program for each channel is input, the first step of displaying the stored broadcast program information for each channel as a guide screen of a predetermined form, the key signal for scrolling the guide screen When input, the second step of reading the program information of the specific channel in which the cursor displayed in the guide screen is located from the memory unit, the third step of scrolling and displaying the program information of the read specific channel, the scroll signal continues If inputted, repeat the process after the second step A fourth step of performing a step; and a fifth step of reading and displaying program information for each channel stored in the memory unit when a predetermined time elapses without the scroll signal being input. Provide a method.

1 is a block diagram of a satellite broadcast receiver suitable for applying a method of scrolling a guide screen of a satellite broadcast receiver according to an embodiment of the present invention;

2 is a view for explaining a method of scrolling a guide screen of a satellite broadcast receiver according to an embodiment of the present invention;

3 is a flowchart illustrating a process of scrolling a guide screen of a satellite broadcasting receiver according to a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

10: key input unit 20: tuner and demodulation unit

30: micom 40: MPEG decoder

50: memory 60: OSD

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings.

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

1 is a block diagram of a satellite broadcasting receiver suitable for performing a search method of a satellite broadcasting guide program according to the present invention, and includes a key input unit 10, a tuner and a demodulator 20, a microcomputer 30, and an MPEG decoder 40. ), A memory unit 50, and an OSD unit 60.

The key input unit 10 is composed of key metrics on a remote controller or its own panel to generate a corresponding key signal by a user's operation and provide it to the microcomputer 30, in particular, to move the cursor displayed on the guide screen. It consists of up, down, up and down arrow keys.

The microcomputer 30 controls a control signal for tuning a broadcast channel, a control signal for tuning a broadcast channel, and a control signal for driving the OSD unit 60 based on a key signal from the key input unit 10. Will occur.

Then, the tuner and demodulator 20 tunes the bitstream of the channel corresponding to the tuning control signal of the microcomputer 30 in the bitstream from the satellite received through the antenna (not shown), and then demodulates the MPEG decoder again. Provide to 40.

The MPEG decoder 40 separates and decodes a broadcast signal provided from the tuner and the demodulator 20 into an audio signal, a video signal, and various program information, and provides the decoded signal to a signal processor, not shown, from the OSD unit 60. Data about the various information provided is also provided to the signal processor after a predetermined signal processing process.

The memory unit 50 stores various program information and various guide screen formats decoded and output from the above-described MPEG decoder 40 under the control of the microcomputer 30, and the programs stored under the control of the microcomputer 30 again. Will print the information.

In the satellite broadcast receiver configured as described above, when a user operates the key input unit 10 and inputs a key signal for displaying a broadcast program guide screen for each channel of the satellite broadcast receiver, the microcomputer 30 responds to the key signal. Information about the broadcast program for each channel of the satellite broadcast receiver stored in the memory unit 50 is read, and the broadcast program guide screen as shown in FIG. 2A is displayed on the monitor through the OSD unit 60.

At this time, when the user moves the cursor located in the program of a specific channel by operating the direction key of the key input unit 10, that is, the position of the cursor is located in the 'program 3' of 'CH 103' as shown in the drawing. In this case, when the cursor is moved to the next program by operating the direction key, the microcomputer 30 first reads only the program information of 'CH 103' among the program information for each channel stored in the memory unit 50, and then enters the OSD unit ( 60), a guide screen as shown in Fig. 2B is displayed.

In detail, as shown in the drawing, only the next program information of the corresponding channel CH 103 is first read and displayed on the screen in response to the user's key signal, and when the user continues to input the direction key again, Through the same process, only the program information of the corresponding channel is displayed first.

When the user's key operation is stopped, the microcomputer 30 reads program information for each channel stored in the memory unit 50 and displays a guide screen including program information for each channel as shown in FIG. 2C.

As a result, when the screen scroll is performed by the user while the program guide screen for each channel is displayed, the microcomputer 30 scrolls only the broadcast program information of the channel where the cursor is located first, and then when the scroll operation stops, The program information will be displayed.

This screen scrolling method can perform a quick scrolling function in response to the user's key signal when the user continuously inputs a key signal for scrolling the screen in a state where the screen information is large.

3 is a flowchart illustrating a guide screen scrolling process of a satellite broadcasting receiver according to a preferred embodiment of the present invention. A screen scrolling process as described above with reference to the drawings is described in detail as follows.

While the satellite broadcasting receiver is operating in the normal viewing mode in which a specific channel selected by the user is tuned and displayed (step 301), the user operates the key input unit 10 to input a broadcast program guide key signal for each channel of the satellite broadcasting receiver. In step 303, the program guide screen for each channel as shown in FIG. 2A is displayed through the OSD unit 60 under the control of the microcomputer 30 (step 305).

Then, when the user inputs a key signal for screen scrolling again in the state where the guide screen as shown in the drawing is displayed (step 307), the microcomputer 930 is a program for each channel stored in the memory unit 50. Only the program information of the channel where the cursor is located among the information is read (step 309) and provided to the OSD unit 60, so that only the program information of the corresponding channel is displayed (step 311), as shown in FIG.

At this time, if the user continuously inputs a key signal for scrolling the screen through the key input unit 10 (step 313), the above-described steps 309 to 311 are repeatedly performed by the microcomputer 30, and the cursor is positioned. Only program information of the channel is scrolled and displayed.

If the scroll key signal is not input for a predetermined time (eg, 2 seconds) preset in step 313 while the program information screen of the channel where the cursor is located is scrolled by repeating the above-described process (step 315) That is, when the scrolling of the screen stops, the microcomputer 30 reads program information for each channel corresponding to the currently displayed time zone among the program information of the remaining channels stored in the memory unit 50 (step 317), and displays the OSD unit ( 60, a program guide screen for each channel scrolled as shown in Fig. 2C is displayed (step 319).

As a result, when the user scrolls the guide screen through the key input unit 10 while the program guide screen for each channel of the satellite broadcast receiver is displayed, the program information of the channel desired by the user, that is, the program information of the channel where the cursor is located. Is displayed first, and then the scrolling process is stopped, the program information of the other channels is displayed.

As described above, according to the present invention, the program information of the portion where the cursor is located is first displayed in the process of scrolling the program guide screen for each channel of the satellite broadcasting receiver, thereby providing a quick screen scroll function corresponding to the key signal input by the user. There is an effect that can be performed, and thus there is an effect that can provide convenience of product use.

Claims (1)

A method of scrolling a guide screen in a satellite broadcast receiver which receives a satellite broadcast signal provided through a satellite and stores broadcast program information for each channel extracted from each broadcast signal in a memory unit. A first step of displaying the stored broadcast program information for each channel as a guide screen in a predetermined form when a guide screen request key signal for the program for each channel is input; A second step of reading, from the memory unit, program information of a specific channel where a cursor displayed in the guide screen is located when a key signal for scrolling the guide screen is input; A third step of scrolling and displaying the read program information of the specific channel; A fourth step of repeating the process after the second step if the scroll signal is continuously input; And a fifth step of reading and displaying program information for each channel stored in the memory unit if a predetermined time elapses without the scroll signal being input.