KR19990086453A - How to Display OSDS Menu Screen of Satellite - Google Patents

Abstract

The present invention relates to a method for displaying an OSD menu screen of a satellite broadcasting receiver for displaying an OSD (On Screen Display) menu screen according to program guide information and a menu on a single screen.

To this end, the present invention allocates a plurality of OSD buffers to correspond to the number of OSD menu screens that can be displayed on one screen, and sequentially reads the OSD menu information corresponding to the OSD menu screen selected by the user and sequentially reads the OSD menu information. After buffering, the count number of the buffered OSD buffer is increased by 1 and the process of displaying the read OSD menu information on the corresponding screen position is repeatedly performed until the user's operation signal for completion of selection is applied. At this time, when the selection completion operation signal is applied and the OSD menu screen is cleared on the screen and the OSD menu information is cleared as much as the counted number of OSD buffers, and when the cancel operation signal is applied, only the currently displayed OSD menu screen is displayed. Clear on the screen and finally clear the OSD menu information stored in the OSD buffer.

Accordingly, the present invention provides an effect of displaying a plurality of screens on one screen without undergoing multiple key operations.

Description

How to Display OSDS Menu Screen of Satellite

The present invention relates to a satellite broadcast receiver, and more particularly, to a method of displaying an OSD menu screen of a satellite broadcast receiver for displaying an OSD (On Screen Display) menu screen according to program guide information and a menu on one screen. It is about.

Satellite broadcasting transmits broadcast programs sent from ground stations (broadcasting earth stations) using satellites (communication satellites) located at an altitude of about several tens to hundreds of kilometers from the earth's surface, providing broadcast signals to a wider area. The satellite broadcasting signal is received using a satellite broadcasting reception antenna equipped with a low noise blockdown converter (LNB). At this time, the satellite broadcast signal received by the satellite broadcast reception antenna is recovered as a digital broadcast signal in the form of a transport stream in a packet unit through conversion to demodulation, demodulation, and error correction. The digital broadcast signals in the stream form include broadcast signals for each channel, that is, video data and audio data, subtitle data, and program guide information for each channel. That is, the satellite broadcasting receiver not only provides a broadcasting signal for each channel differently from the terrestrial broadcasting but also provides various menus including a menu for providing program guide information, which is a unique feature of digital broadcasting, called program guide. time. Program guide information is stored in the memory.

Therefore, the satellite broadcasting receiver extracts a broadcast signal of a channel corresponding to the user's selection from the satellite broadcast signal received by the program guide information provided, and decodes the extracted broadcast signal by the MPEG (Motion Picture Expert Group) method. It is configured to provide. When the program guide screen display operation signal is provided by the user, the stored program guide information or a menu screen desired by the user is displayed on the screen as described above. That is, as described above, the program guide information stored in the memory is configured as a menu screen using a graphic tool and displayed on the monitor when a display of a plurality of channel information and broadcast program information of each channel is requested from the user.

In addition, the satellite broadcasting receiver has a function of displaying various menu screens, and thus, a tree structure in which a main menu, which is an initial menu screen, and a plurality of sub-menus exist under it. Therefore, in order to move to the sub-menu screen of the main menu desired by the user, the user has to go through several steps.

In other words, the conventional satellite broadcasting receiver has to suffer from a number of key operations in order to move to a submenu item according to a desired main menu on a program guide screen.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and an object of the present invention is to display a program guide screen and a plurality of menu screens in multiple displays on one screen, thereby providing convenience to a user. The present invention provides a method for displaying an OSD menu screen of a receiver.

The present invention for achieving the above object, in the OSD menu screen display method of the satellite broadcasting receiver to display the OSD menu screen multiple on the program guide screen, a plurality of OSD menu screen that can be displayed on one screen A first step of allocating an OSD buffer for buffering the OSD menu information, a second step of reading OSD menu information corresponding to the selected OSD menu screen when a user's operation signal for selecting an OSD menu screen is input; Buffering the OSD menu information read in the second step into the OSD buffer and increasing the number of buffered OSD buffers by one; and a sub-menu screen according to the OSD menu information read in the second step. A fourth step of displaying at a corresponding position on the program guide screen, and an OSD menu different from the OSD menu screen selected in the second step A fifth step of determining whether to input a user's operation signal for selecting a function; and if the user's operation signal for selecting another OSD menu screen is input as a result of the determination, the process is repeated to perform the sub-display displayed in the fourth step. A sixth step of displaying multiple screens overlapping different OSD menu screens on the menu screen, and determining whether to input an operation signal for completion or cancellation of selection if a user's operation signal for selecting another OSD menu screen is not input; When the operation signal for selection completion is input as a result of the determination in the sixth step, the number of buffered OSD buffers is counted in the third step, and then the OSD menu screen is erased on the program guide screen by the counted OSD number. A seventh step of erasing the OSD menu information buffered in the OSD buffer; a result of the determination of the sixth step; If the call is input to clear the OSD menu screen currently being displayed on the program guide screen and a eighth step to clear the OSD information of the OSD menu, the buffer of the last buffered.

1 is a block diagram illustrating a configuration of a satellite broadcast receiver for performing a method of displaying an OSD menu screen of a satellite broadcast receiver according to an embodiment of the present invention.

2 is a flowchart illustrating a process for performing an OSD menu screen display method of a satellite broadcasting receiver according to the present invention;

3 is a diagram illustrating a plurality of OSD menus displayed on a screen according to the present invention.

<Description of the symbols for the main parts of the drawings>

100 tuner and demodulator 110 transport demultiplexer

120: MPEG decoder 130: control unit

140: memory 150: OSD buffer

160: menu generating unit 170: image synthesizing unit

Hereinafter, with reference to the accompanying drawings will be described in detail the operation of the preferred embodiment according to the present invention.

1 is a block diagram showing a configuration of a satellite broadcasting receiver according to an exemplary embodiment of the present invention, a tuner and a demodulator 100, a transport demultiplexer 110, an MPEG decoder 120, a controller 130, The memory 140, the OSD buffer 150, the menu generator 160, and the image synthesizer 170 are included.

The tuner and demodulator 100 tunes the corresponding channel according to the tuning control signal provided by the controller 130 as can be seen in the following description. That is, the tuner and demodulator 100 tunes a channel corresponding to a tuning control signal provided by the controller 140 among the satellite broadcast signals received through the satellite broadcast receiving antenna, and converts and demodulates the broadcast signal of the tuned channel into IF. And recovering the transport stream through a process such as error correction. At this time, the restored transport stream includes audio and video signals, text data, and program guide information of each channel. The tuner and demodulator 100 controls the restored transport stream under the control of the controller 130. The transport demultiplexer 110 is provided. At this time, the transport demultiplexer 110 provides the audio signal, the video signal, and the caption data of the transport stream provided by the tuner and the demodulator 100 to the MPEG decoder 120, and the program guide information is controlled by the controller 130. To provide.

In this case, the MPEG decoder 120 may vary the compressed and encoded video signal in consideration of the spatial and spatial correlation of the compressed and encoded audio signal and the video signal provided by the transport demultiplexer 110, for example, the video signal. A decoding technique such as length decoding, inverse DCT, inverse quantization, and motion compensation is used to restore the original signal before encoding. That is, the MPEG decoder 120 converts the decoded digital audio signal into an analog audio signal at an audio signal processing stage (not shown) and outputs the analog audio signal to the speaker not shown, and the digital video signal decoded by the above process is NTSC or the like. After conversion to a PAL analog video signal is provided to the image synthesizer 170.

Meanwhile, the controller 130 provides the program guide information provided by the transport demultiplexer 110 to the memory 140 as described above, and the memory 140 stores the program guide information provided by the controller 130. Address and store. At this time, the controller 130 reads the program guide information stored in the memory 140 and provides it to the menu generator 160 when a signal according to a program guide screen display operation is provided from the user. In addition, when a user's operation signal for displaying a plurality of sub-menu screens according to a main menu is provided, the controller 130 reads each OSD menu information according to the sub-menu screen to be displayed on the screen from the memory 140. The OSD buffer 150 is provided to the OSD buffer 150, and the OSD buffer 150 sequentially buffers the read OSD menu information, that is, OSD menu information of a sub-menu screen to be displayed on the screen. The controller 130 provides the menu generator 160 with respective OSD menu information corresponding to the sub-menu screen to be displayed on the screen read from the memory 140.

That is, the menu generator 160 configures program guide information provided from the controller 130 as a menu screen corresponding to preset menu format information, and also displays OSD menu information according to a sub-menu screen to be displayed on the screen. It is configured as a multi-menu screen for displaying on one screen and provided to the image synthesizing unit 170.

Accordingly, the image synthesizing unit 170 may display a decoded video signal provided by the MPEG decoder 120 and a menu screen provided by the menu generator 160, that is, program guide information under the control of the controller 130. The multi-menu screen overlapping each OSD menu information according to the sub-menu screen that the user wants to display on the screen is converted into NTSC or PAL analog signal and mixed and provided to the display side such as a monitor.

2 is a flowchart illustrating a process for performing an OSD menu screen display method of a satellite broadcasting receiver according to the present invention, and FIG. 3 is a view illustrating a plurality of OSD menus displayed on one screen according to the present invention. The description of 2 will be described in detail with reference to the block diagram of the satellite broadcast receiver shown in FIG.

First, as shown in FIG. 3, the controller 130 initializes the OSD buffer 150 including the nth OSD buffers, and proceeds to step 201.

In this case, the controller 130 allocates the OSD buffer 150 for buffering a plurality of OSD menu information as much as the number of OSD menu screens that can be displayed on one screen in step 201. As shown in FIG. 1, the nth OSD buffer is allocated to the OSD buffer 150, and the flow proceeds to step 202 to determine whether an operation signal for selecting a desired OSD menu screen from the user is provided. As a result of determination, when an operation signal for selecting a desired OSD menu screen is provided from the user, the controller 130 displays OSD menu information corresponding to the OSD menu screen according to the user's operation signal from the memory 140, that is, a start point and an on-screen display. The OSD menu information of the sub-menu screen including the size is read (step 203).

Next, the controller 130 proceeds to step 204 and buffers the read OSD menu information in the first OSD buffer 151 of the nth OSD buffers 150 shown in FIG. 3 and increases the number of OSD buffer counts by one. The OSD menu information is then provided to the menu generator 160. At this time, the menu generator 160 displays the start point and display size included in the OSD menu information, that is, the start point and the screen on the screen, in order to display the OSD menu information provided from the controller 130 at a corresponding position. In step 205, a menu screen 301 composed of sub-menu screens corresponding to the display size at the time of display is displayed on the screen.

In this way, when the user's operation signal for selecting another OSD menu screen is provided while displaying the OSD menu screen desired by the user (step 206), the process returns to step 203 to repeat the above process.

That is, when an operation signal for selecting another OSD menu screen is provided from the user, the controller 130 reads OSD menu information corresponding to another selected OSD menu screen from the memory 140 and reads the read OSD menu information. It is stored in the second buffer 152 and then provided to the menu generator 160, and the menu generator 160 controls the controller 130 on the OSD submenu screen corresponding to the OSD menu information stored in the first buffer 151. The multi-menu screen 302 overlapping the sub-menu screen corresponding to the starting point and the screen display size included in the other OSD menu information provided at) is configured to be displayed at the corresponding position.

In this state, as shown in FIG. 3, a plurality of OSD screens are displayed in multiple screens 301 to 302 as shown in FIG. If it is determined that the manipulation signal is provided and the user manipulation signal for completion of selection is determined, the process proceeds to step 208 to count the number of OSD buffers 150 buffering the OSD menu information.

Next, the controller 130 returns the OSD menu screen to the previous OSD menu screen by the counted number of OSD buffers (step 209). For example, it is assumed that the number of OSD buffers counted in step 208 is '2'. In this case, after deleting two OSD menu screens on the screen, the process proceeds to step 210, and the OSD buffers corresponding to the number of OSD buffers counted among the n-th OSD buffers 150, that is, the first OSD buffer 151 and the first 2 The OSD menu information stored in the OSD buffer 152 is cleared.

Meanwhile, if the user's manipulation signal for the selection is not provided in step 207 and the user's manipulation signal for the cancellation is provided (step 211), the controller 130 proceeds to step 212 and displays the OSD menu currently displayed. After deleting only the screen on the screen, the process proceeds to step 210 to clear the OSD menu information stored in the last buffered OSD buffer.

As described above, the OSD menu screen display method of the satellite broadcasting receiver according to the present invention has the effect of providing convenience to the user by configuring the OSD menu screen desired by the user on a single screen. .

Claims (2)

A method for displaying an OSD menu screen of a satellite broadcasting receiver for displaying multiple OSD menu screens on a program guide screen, A first step of allocating an OSD buffer for buffering a plurality of OSD menu information to correspond to the number of OSD menu screens that can be displayed on one screen; A second step of reading OSD menu information corresponding to the selected OSD menu screen when a user's operation signal for selecting the OSD menu screen is input; A third step of buffering the OSD menu information read out in the second step into the OSD buffer and increasing the number of buffered OSD buffers by one; A fourth step of displaying a sub-menu screen according to the OSD menu information read in the second step at a corresponding position on the program guide screen; A fifth step of determining whether a user's operation signal for selecting an OSD menu screen different from the OSD menu screen selected in the second step is input; As a result of determination, when a user's operation signal for selecting another OSD menu screen is input, the above process is repeated to display multiple screens in which different OSD menu screens are overlapped on the sub-menu screen displayed in step 4, and another OSD menu is displayed. A sixth step of judging whether or not an operation signal for selection completion or cancellation is input when an operation signal of a user for selecting a screen is not input; As a result of the determination of the sixth step, when an operation signal for selection completion is input, the number of buffered OSD buffers is counted in the third step, and then the OSD menu screen is erased on the program guide screen by the counted OSD number, and the OSD is displayed. A seventh step of erasing the OSD menu information buffered in the buffer; And a eighth step of erasing the currently displayed OSD menu screen on the program guide screen and erasing OSD menu information of the last buffered OSD buffer when an operation signal for cancellation is input as a result of the determination of the sixth step. How to display the OSD menu screen. The OSD menu of the satellite broadcasting receiver according to claim 1, wherein the OSD menu information of the fourth step comprises a sub-menu screen corresponding to a starting point for displaying on the program guide screen and a screen display size. How to display.