KR20000021601A - Apparatus for searching program of satellite broadcasting receiver - Google Patents

Abstract

PURPOSE: An apparatus for searching a program of a satellite broadcasting receiver is provided to input a word for searching concerned a title and search a guide information. CONSTITUTION: An apparatus for searching a program of a satellite broadcasting receiver includes a detection element, a searching element, a key input element, a display element, and a control element. The detection element is to detect a program guide information in a digital broadcasting signal offered an output from an MPEG A/V decoder(50). The searching element is to provide the program guide information detected in the detection element as a database and, when a key word is inputted, detect the provided database to offer an output a concerned list and a guide information. The key input element is to input a searching word in the searching element. The display element is to display a searching screen necessary to the searching. The control element is to control the searching element and the display element, thereby, controlling the display of a searching result.

Description

Program search device of satellite broadcasting receiver

The present invention relates to a program search apparatus for a satellite broadcast receiver capable of searching for guide information of a desired program by a satellite broadcast receiver.

In general, satellite broadcasting by a broadcasting satellite (BS) is a broadcast satellite located on a geostationary orbit around 35,000 to 36,000 km from the terrestrial orbital broadcaster, and re-launches the parabola antenna. It refers to the form of reception through satellite broadcasting receiver in each home.

Referring to the block diagram of Fig. 1 the reception process of the satellite broadcast through the satellite broadcast receiver is as follows.

1 is a block diagram of a general satellite broadcast receiver.

Referring to FIG. 1, a general satellite broadcast receiver selects an antenna 10 receiving a satellite broadcast signal transmitted from a broadcast satellite and a channel selected by a user from the satellite broadcast signal received from the antenna 10. A desired packet table is selected from the channel unit 20 for frequency amplification and digital conversion after analog conversion, and applied to the demultiplexer 30 and PID (Packet ID) information of the digital satellite broadcast signal applied from the channel unit 20. Depacketizing, the demultiplexer 30 to be applied to the descrambler (40) to descramble the scrambled broadcast signal in the case of euro-pro, and the demultiplexer (30) applied Compression of the descrambler 40 which descrambles the scrambled broadcast signal and reapplies it to the demultiplexer 30, and compresses the depacketized broadcast signal in the demultiplexer 30. The video signal is applied to the NTSC encoder 60, and the audio signal is compressed by the MPEG A / V decoder 50, which is applied to the audio D / A converter 70. NTSC encoder 60 for processing video signals among the unpacked digital broadcast signals and outputting them to a TV monitor, audio D / A converter 70 for processing audio signals and outputting them to a speaker, and wireless operation of all satellite broadcast receivers. It consists of a remote controller 90 to control.

Referring to the operation of the general satellite broadcast receiver having the above configuration, when the user powers on the satellite broadcast receiver using the remote controller 90, the antenna 10 is a channel part of the satellite broadcast signal transmitted from the broadcast satellite The channel selected in (20) is selected, digitally converted from intermediate frequency amplification, analog, and then demodulated and applied to the demultiplexer 30. The digital broadcast signal selected and demodulated by the channel unit 20 depacketizes a desired packet table among PID (Packet ID) information of the digital satellite broadcast signal in the demultiplexer 30, In this case, the descrambler 40 is applied to the descrambler 40 so as to descramble the scrambled broadcast signal. The scrambled broadcast signal applied from the demultiplexer 30 to the descrambler 40 is descrambled and applied to the demultiplexer 30 again. The depacketized broadcast signal is decompressed by the MPEG A / V decoder 50 in the demultiplexer 30. The video signal is NTSC encoder 60 and the audio signal is audio D / A in the digital broadcast signal. The converter 70 is separated and sent out. The video signal transmitted from the MPEG A / V decoder 50 to the NTSC encoder 60 is processed into a video signal suitable for output and output to the TV monitor, and the audio signal is output from the audio D / A converter 70. The audio signal is processed to be output to the speaker. In addition, the satellite broadcasting is sent to the satellite broadcast signal to the program guide information corresponding to one week or four weeks periodically to provide the user with guide information about the broadcast date, time, channel about the program. In addition, the satellite broadcasting receiver decodes the guide information and displays the guide information to the user through the guide screen. The user receives the guide information related to the program that he / she wants to watch through the guide information to watch the program.

In the general satellite broadcasting receiver as described above, if the user only knows a part of the title and does not know the date, time zone, or channel, the user has to search all the guide screens, and there is no search function in the procedure for finding a desired program. there was.

The present invention has been made to solve the above problems, an object of the present invention is to provide a program search apparatus for a satellite broadcast receiver that can find the guide information by inputting a search word related to the title.

As a technical idea for achieving the object of the present invention, the detection means for detecting the program guide information from the satellite broadcast signal, the program guide information detected by the detection means is stored, and when searching the stored data when entering a keyword related list and The invention comprises a search means for outputting guide information, a means for displaying a search screen necessary for the above search, and a control means for controlling all the means.

1 is a block diagram of a typical satellite broadcast receiver

2 is a block diagram for explaining a program search apparatus of the present inventors satellite broadcast receiver;

3 is an exemplary view showing an OSD screen for searching for a program

4 is a flow chart for explaining the operation of the program search apparatus of the present invention satellite broadcast receiver

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

5: broadcast satellite 10: antenna

15 converter 20 channel portion

20a: Tuner 20b: A / D Converter

20c: Link IC 30: Demultiplexer

40: descrambler 50: MPEG A / V decoder

60: NTSC encoder 70: audio D / A converter

75: OSD 80: controller

85: guide data detector 90: remote controller

95: guide data section 100: search program

Hereinafter, with reference to the accompanying drawings with respect to the configuration and operation of the embodiment of the present invention will be described.

2 is a block diagram illustrating a program search apparatus of the present invention satellite broadcast receiver.

3 is an exemplary view showing an OSD screen for program search.

Referring to FIGS. 2 and 3, the present invention provides an antenna 10 for receiving a satellite broadcast signal transmitted from a broadcast satellite 5, a low noise block-down convert (LNB), a waveguide (Feedhorn), and a polarotor. The low frequency and high amplification of the broadcast signal received by the antenna 10 at a frequency of 1/10, that is, converts the 12 GHz received signal into an intermediate frequency of 1 GHz as it is an FM signal and amplifies it to the required level. A converter 15 applied to the channel unit 20, a tuner 20a for tuning a channel selected by a user in the FM broadcast signal of 1 GHz band transmitted from the antenna 10 and the converter 15, and the tuner ( A / D converter 20b for converting the broadcast signal tuned in 20a from analog to digital, and digital signal in the A / D converter 20b for demodulation and channel decoding to demultiplexer 30. A channel section 20 composed of a Link IC 20c to be sent to Depacketizing the desired packet table among PID (Packet ID) information of the digital satellite broadcasting signal applied from the null unit 20, and in the case of Europro, a descrambler to descramble the scrambled broadcast signal. A demultiplexer 30 applied to the descrambler 40, a descrambler 40 descrambled the scrambled broadcast signal applied from the demultiplexer 30, and re-applied to the demultiplexer 30, and the demultiplexer 30. MPEG decoded broadcast signal is decompressed and video signal is applied to NTSC encoder 60 and audio signal is applied to audio D / A converter 70. NTSC encoder 60 for processing video signals among digital broadcast signals decompressed by MPEG A / V decoder 50 and outputting them to a TV monitor, and audio D / A converters for processing audio signals and outputting them to a speaker. ) And A guide data detector 85 connected to the MPEG A / V decoder 50 for detecting program guide information from the digital broadcast signal, and a guide data detector 85 connected to the guide data detector 85 for detection by the guide data detector 85. A guide data unit 95 for constructing program guide information as a database, a remote controller 90 for inputting a search word for searching for a desired program, and a search word input through the remote controller 90. A search program 100 for searching the data of the guide data unit 95 and outputting program guide information; an OSD 75 for outputting an OSD screen for the search according to the control of the controller 80; A controller that controls all functions and, in particular, controls the OSD 75 and the search program 100 when a user searches for a program, and outputs a search result to the OSD screen. It consists of 80.

Referring to the operation of the present invention having the above configuration, when the user powers on the satellite broadcast receiver using the remote controller 90, the antenna 10 receives the satellite broadcast signal transmitted from the broadcast satellite (5) The broadcast signal received by the antenna 10 is low noise and amplified at a frequency of 1/10 at the converter 15, that is, the 12 GHz received signal is converted into an intermediate frequency of 1 GHz as it is an FM signal and the required level is obtained. Amplified to and applied to the channel unit 20. The FM broadcast signal of 1 GHz band transmitted from the antenna 10 and the converter 15 is tuned to a channel selected by a user in the tuner 20a of the channel unit 20, and the broadcast signal tuned by the tuner 20a is a channel. The broadcast signal converted from analog to digital by the A / D converter 20b of the unit 20 and digitally converted by the A / D converter 20b is demodulated by the Link IC 20c of the channel unit 20. The channel is decoded and applied to the demultiplexer 30. The digital broadcast signal selected and demodulated by the channel unit 20 depacketizes a desired packet table among PID (Packet ID) information of the digital satellite broadcast signal in the demultiplexer 30, and the euro profile. In this case, the scrambler 40 is applied to the descrambler 40 under the control of the controller 80 so as to descramble the scrambled broadcast signal. The scrambled broadcast signal applied from the demultiplexer 30 to the descrambler 40 is descrambled and applied to the demultiplexer 30 again. The depacketized broadcast signal is decompressed by the MPEG A / V decoder 50 in the demultiplexer 30. The video signal is NTSC encoder 60 and the audio signal is audio D / A in the digital broadcast signal. The converter 70 is separated and sent out. The video signal transmitted from the MPEG A / V decoder 50 to the NTSC encoder 60 is processed into a video signal suitable for output and output to the TV monitor, and the audio signal is output from the audio D / A converter 70. The audio signal is processed to be output to the speaker. In addition, the guide data detector 85 detects the program guide information included in the digital video signal output from the MPEG A / V decoder 50 and applies it to the guide data unit 95. The guide data unit 95 Stores the program guide information. When the user switches the search button using the remote controller 90 to search for a desired program, the controller 80 drives the search program 100 and the OSD 75 according to the command, and the search program 100 ) Displays the initial screen for searching on the screen through the OSD (75).

The process of searching by the user will be described with reference to the exemplary diagrams of FIGS. 3A, 3B, 3C, and 3D as follows.

3A is an initial screen for searching.

3B is a screen for entering a search word.

3C is a screen showing an initial search result.

3D is a screen showing a detailed search result.

Referring to the exemplary diagrams of FIGS. 3A, 3B, 3C, and 3D, a user inputs a search word using the remote controller 90 in the OSD initial screen as shown in FIG. 3A. If the user wants to search for a program related to 'hong gil dong', the user inputs 'hong gil dong' and switches the search key of the remote controller 90. When the search word is input by the above, it appears in the form of FIG. 3B, and the controller 80 drives the search program 100 with the switching of the search key to display a program title including the word “Hong Gil Dong” in FIG. 3C. Display in the form of. In other words, the search results were OSD screens, with three appearances: 'Hong Gil Dongjeon', 'Hong Gil Dong and Lim Kwak Jeong', and 'Hong Gil Dong Inquiry'. In the above, the user selects a program he / she wants to know from the searched three titles using the remote controller 90. If the user selects 'Hong Gil Coin', the controller 80 drives the search program 100 to read guide information about the selected program stored in the guide data unit 95, and the guide information is shown in FIG. 3D. Output to the OSD screen such as As can be seen in Figure 3d, the guide screen also provides the program 'Hong Gil Coin' and the surrounding channel program information of the broadcast time. In addition, the search program 100 adjusts the arrangement of the guide information so that the selection program is centered as much as possible.

The operation of the program search apparatus of the satellite broadcasting receiver is described with reference to the flowchart of FIG. 4 as follows.

Figure 4 is a flow chart for explaining the operation of the program search apparatus of the present invention satellite broadcast receiver.

Referring to Figure 4, the user uses a satellite broadcast receiver to watch the satellite broadcast (S100).

When the user watches satellite broadcasting in step S100, the user determines whether to search for a desired program (S200).

According to the result determined in step S200, if the program is not to be searched, the process is repeated from step S200. If the program is to be searched, the remote controller 90 enters a search word in the search OSD initial screen (S300).

When the search word is input in step S300, the controller 80 drives the search program 100 to search for a program title including the search word stored in the guide data unit 95 (S400).

When the search is finished in the process S400, the search program 100 sends the searched program list to the OSD 75 to be output on the OSD screen (S500).

When the list of programs found in step S500 is displayed, the user determines whether to view guide information of a desired program in the list (S600).

According to the result determined in step S600, if the guide information is not viewed, the process is repeatedly performed from step S600. If the guide information is viewed, the desired program is selected from the result list using the remote controller 90 (S700).

When the desired program is selected in step S700, the search program 100 reads the guide information of the selected program stored in the guide data unit 95 and displays it on the OSD screen (S800).

Through all the above processes, the program searching apparatus of the satellite broadcasting receiver is implemented as the present invention intends.

As can be seen from the above description, the present invention stores a detection means for detecting the guide information included in the satellite broadcast signal and the detected guide information so that the program guide information can be found by inputting a search term related to the program title. And a storage means for providing a program search apparatus of a satellite broadcasting receiver, which is equipped with a search program and outputs the guide information related to the OSD on an OSD screen when a user enters a search word. Just enter the word of has the convenient effect of easily outputting the guide information of the desired program.

Claims (2)

In the satellite broadcasting receiver for receiving a satellite broadcasting program through a broadcasting satellite and displaying it to the user Detecting means for detecting program guide information from a digital broadcast signal output from the MPEG A / V decoder 50; Search means for constructing a program guide information detected by the detection means into a database, searching for the constructed data when a keyword is input, and outputting related lists and guide information; Key input means for inputting a search word into the search means; Display means for displaying a search screen necessary for the search; And a control means for controlling the search means and the display means to display a search result when a user searches for a program. The method according to claim 1, wherein the search means, A guide data section 95 connected to the guide data detector 85 for constructing a program guide information detected by the guide data detector 85 into a database; And a search program (100) for searching the data of the guide data unit (95) according to a search word input through a remote controller (90) and outputting program guide information.