KR20070089275A - Apparatus and method for scanning a channel in a satellite broadcasting receiver - Google Patents

Abstract

An apparatus and a method for scanning a channel in a satellite broadcasting receiver are provided to transmit data, to which satellite information is set, to the satellite broadcasting receiver by using an OAD(Over Air Download) function, and automatically generate a channel list provided from satellites based on the data, thereby providing a user with more information about the satellites and channel information corresponding to the satellite information. A memory(116) stores antenna information and a channel list for a satellite broadcasting transmitting station for transmitting a satellite broadcasting signal to a satellite broadcasting receiver. A controller(114) calculates a scanning-available area based on the antenna information if OAD(Over Air Download) data in which location information of satellites is set is received from the satellite broadcasting transmitting station. The controller generates a channel list by receiving channel information from at least one or more scanning-available satellites among satellites set in the OAD data by comparing the location information of the satellites, set in the OAD data, with the calculated areas. After that, the controller updates the channel list stored in the memory.

Description

Apparatus and method for scanning channel of satellite broadcasting receiver {APPARATUS AND METHOD FOR SCANNING A CHANNEL IN A SATELLITE BROADCASTING RECEIVER}

1 is a block diagram illustrating a channel scanning apparatus and a peripheral configuration of a satellite broadcasting receiver according to an exemplary embodiment of the present invention.

2 is a flowchart illustrating a process of a satellite broadcasting receiver scanning a channel and generating a channel list according to an exemplary embodiment of the present invention.

<Description of the code | symbol about the principal part of drawing>

100: antenna 102: LNB

104: tuner section 106: digital signal processing section

108: MPEG decoder 110: video output unit

112: audio output unit 114: control unit

116 memory 150 Satellite broadcast transmitting station

160: information provision server

The present invention relates to a satellite broadcast receiver, and more particularly, to a channel scanning apparatus and method of a satellite broadcast receiver.

Recently, we are experiencing a remarkable change called the IT revolution. In the field of telecommunications, the rapid spread of the Internet and mobile communication and the high speed and large capacity of telecommunication networks are progressing. Beginning, we are entering the age of digital broadcasting. Digital broadcasting has begun in many countries, including the United Kingdom, the United States, Sweden, Spain, and Australia, and the world has already entered the media revolution of the digital broadcasting era. The impact of digital broadcasting on people's lives, broadcasting industry and national economy is very large, and the conversion of analog broadcasting to digital broadcasting has greatly improved user convenience. Through digital broadcasting, viewers are exposed to dramatically improved picture quality and sound quality not seen in conventional analog broadcasting, and broadcasters are finding even more new business opportunities.

Digitization has allowed broadcasters to offer even more channels in the same frequency band and to provide chat services combined with the Internet. In digitalization, the digitalized broadcasting network plays an important role as the information infrastructure of the knowledge and information society in the 21st century along with the communication network, and the smart TV will be fiercely contested with the PC for the home server. In terms of the use of radio resources, it will maximize the use of radio resources, the finite and valuable shared resources that are digital in broadcasting. In terms of industrial structure and national economy, many changes are taking place. Due to digitization, the conventional terrestrial-oriented monopoly market is transforming into a fiercely competitive market among media, which leads to strengthening the competitiveness of the broadcasting service industry and increasing viewer welfare. In addition to the broadcasting service industry, by increasing production and creating new jobs in related industries such as broadcasting devices, software, and contents, it contributes to the growth of the national economy. As a result, developed countries are making great efforts to use digital conversion of broadcasting as a strategic opportunity for national development.

As the satellite broadcasting market grows, research and development of satellite antennas for receiving satellite broadcasting are also continuing to develop. In order to receive a high frequency satellite broadcast signal in a high frequency band, the satellite antenna must always maintain an optimal position and orientation for the satellite that is the source of the signal. In order to watch various satellite broadcasts with one satellite antenna at the current location, the satellite antenna broadcasts must be changed in the direction of the satellite transmitting each satellite broadcast. For this purpose, the satellites set by the user are automatically searched and the location information is stored. In addition, a device for rotating the antenna to the corresponding satellite when the channel is selected has been developed. Using such a device, the satellite broadcast receiver scans a channel provided by the satellite to select a channel in which a broadcast signal exists and stores it.

However, since the conventional satellite broadcast receiver scans channels provided only by preset satellites, it is a hassle that a user needs to directly acquire information on a new satellite through any medium.

SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem of the prior art, and provides information on satellites that can retrieve the current antenna information and LNB value from the satellite broadcasting transmitter for OAD (Over Air Download) function in the O satellite broadcasting receiver. The present invention provides a channel scanning apparatus and method for a satellite broadcast receiver capable of providing a user with more satellite broadcast channels by scanning satellite broadcasts based on the received and stored data in a memory.

In order to achieve the above object, the present invention provides a channel list for a satellite broadcast transmitting station for receiving a satellite broadcast signal through an antenna and transmitting the satellite information to the satellite broadcast receiver in the satellite broadcast receiver. Calculates an area that can be scanned based on the antenna information when the memory stored therein and OAD data having the location information of the satellites is received from the satellite broadcasting transmission station, and the location information of the satellites set in the OAD data and the calculated And a control unit for generating a channel list by receiving channel information from at least one scanable satellite among the satellites set in the OAD data by comparing the regions, and using the same to update the channel list stored in the memory.

The present invention also provides a method for scanning a channel in a satellite broadcast receiver that receives a satellite broadcast signal through an antenna and stores a channel list for any satellite broadcast receiver that transmits the antenna information and the satellite broadcast signal. Determining whether the OAD data having the location information of the satellites is received from the satellite broadcasting transmitting station; and if the OAD data having the location information of the satellites is received, the satellite broadcasting reception is to be scanned based on the antenna information. Calculating an area that can be scanned, and determining whether there is at least one satellite that can be scanned by an antenna of the satellite broadcast receiver among the satellites by comparing the position information of the satellites set in the OAD data and the calculated area. And determining that the scanable satellite is less than If one or more exist, displaying a list of the satellite (scan) of the satellites set in the OAD data on the display device, and if any one of the list of the satellite (s) is selected, a channel from the selected satellite Generating a channel list by receiving the information, and generating a channel list using the same.

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

1 is a block diagram illustrating a channel scanning apparatus and a peripheral configuration of a satellite broadcasting receiver according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the channel selecting apparatus of the satellite broadcasting receiver is easy to handle an antenna 100 for receiving satellite signals or data transmitted from the satellite broadcasting transmitting station 150, and a satellite signal received from the antenna 100. LNB 102 for converting to a frequency (1 GHz band) and securing a carrier to noise power ratio (CNR), a tuner unit 104 for receiving a specific satellite broadcast signal, and a satellite broadcast signal tuned from the tuner unit 104 Digital signal processor 106 for demodulating and decoding the channel, MPEG decoder 108 for performing MPEG decoding on the broadcast signal received from the digital signal processor 106, and performing image processing, audio processing and additional data processing. Responsible for the overall control of the audio output unit 110 for receiving the audio signal from the audio output unit 110, the video output unit 112 for receiving the video signal from the MPEG decoder 108 and outputting it to the outside. And a memory 116 in which a driving program necessary for overall control of the satellite broadcasting receiver is stored, and the satellite broadcasting transmitting station 150 is connected to the information providing server 160 to store data necessary for the satellite broadcasting receiver. That is, the OAD data is transmitted to the satellite broadcasting receiver using the OAD function.

In this case, the OAD function means that the satellite broadcasting transmitter 150 provides data received from the information providing server 160 operated by the manufacturer of the satellite broadcasting receiver to the satellite broadcasting receiver using an arbitrary broadcasting channel.

The information providing server 160 is a server operated by a manufacturer or an information providing company of a satellite broadcasting receiver. The information providing server 160 is connected to the satellite broadcasting transmitter 150 to update a driving program for driving the satellite broadcasting receiver or to provide a satellite broadcasting service. OAD data for providing location information of satellites is provided to the satellite broadcasting transmitter 150 to request transmission of data.

The memory 116 stores current antenna 100 information, for example, latitude and longitude ranges, which are position values that the antenna 100 can receive, frequency values set in the LNB 102, and the like, and are currently being broadcast. Satellite information and a channel list for receiving a signal are stored.

The controller 114 of the satellite broadcast receiver receives data for upgrading data stored in the memory 116 from the satellite broadcast transmitter 150 using the OAD function.

In particular, for the present invention, the control unit 114 receives OAD data in which satellite information, for example, location information of satellites, is set from the satellite broadcasting transmitting station 150 using the OAD function, and the location information and the memory ( The satellite broadcasting receiver extracts the satellites which can be scanned by the antenna information stored in 116 and stores them in the memory 116 and displays them on a display device (not shown) through the image output unit 112. . Here, when the user selects any one of the satellites displayed on the display device, the controller 114 receives the channel information from the satellite selected by the user, generates a new channel list, and stores the new channel list in the memory 116.

That is, the controller 114 calculates a scanable area based on the antenna information stored in the memory 116 when receiving the OAD data in which satellite satellite position information is set from the satellite broadcasting transmitter 150 and sets the OAD data. Receives channel information from at least one of the satellites set in the OAD data by comparing the location information of the satellites with the calculated area, generates a channel list, and then updates the channel list stored in the memory 116 using the generated channel list. Let's do it.

A process of scanning a channel provided by satellites and generating a channel list based on the satellite broadcast receiver as described above will be described with reference to FIG. 2.

2 is a flowchart illustrating a process of a satellite broadcasting receiver scanning a channel and generating a channel list according to an exemplary embodiment of the present invention.

Referring to FIG. 2, when OAD data storing location information of satellites is received from the information providing server 160, the satellite broadcasting transmitter 150 allocates a predetermined channel for OAD data transmission and then uses the allocated channel. By transmitting to the satellite broadcasting receiver via the antenna (100) (S200).

Accordingly, the antenna 100 of the satellite broadcasting receiver provides the OAD data received through a predetermined channel to the tuner unit 104, and the tuner unit 104 converts it into a frequency band that can be processed by the satellite broadcasting receiver. The digital signal processor 106 is provided.

The digital signal processor 106 digitally processes the OAD data converted by the tuner 104 and provides the digital signal to the controller 114. The controller 114 stores the position information of the satellites included in the OAD data and the memory 116. It is determined whether scannable satellite information exists based on the antenna information stored in the antenna. That is, the controller 114 may scan the antenna 100 of the satellite broadcast receiver based on the antenna information, that is, the frequency set in the LNB 102 and the range (latitude and longitude information) that can be received by the antenna 100. After calculating the area, it is determined whether there is a satellite included in the calculated area among the satellites (S202 and S204).

As a result of the determination in step S204, when at least one satellite exists in the calculated area, the control unit 114 displays a list of satellite (s) that can be scanned by the satellite broadcasting receiver through the image output unit 110. Display on (S206).

Then, when the user selects any one of the satellite (s) displayed on the display device (S208), the controller 114 controls the antenna 100 to receive channel information from the selected satellite, the channel information is tuner unit ( 104 is provided to the control unit 114 after the predetermined signal processing through the digital signal processing unit 106. In response, the controller 114 generates a new channel list based on the channel information and updates the channel list stored in the memory 116 (S210 and S212).

According to the present invention, by using the OAD function to transmit the data of the satellite information set to the satellite broadcast receiver through this automatically generates a channel list provided by the satellite, through the information of more satellites and channel information according to the user Can provide.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

As described above, the present invention generates a channel list provided by the satellite automatically through the data after the satellite information is set to the satellite broadcasting receiver using the OAD function, so that more satellite information to the user and accordingly Providing channel information has the advantage of providing users with the opportunity to experience various channels.

In addition, the user may not only be provided with newly added satellite information by using the satellite broadcast receiver according to the present invention, but also may form a channel list by scanning channels provided by the satellite.

Claims (3)

In a satellite broadcast receiver by receiving a satellite broadcast signal through an antenna, A memory storing a channel list for the satellite broadcasting transmitter for transmitting the antenna information and the satellite broadcasting signal to the satellite broadcasting receiver; When receiving the OAD data in which the location information of the satellites is set from the satellite broadcasting transmitting station, the area that can be scanned is calculated based on the antenna information, and the location information of the satellites set in the OAD data is compared with the calculated area. A control unit that receives channel information from at least one of the satellites set in the OAD data, generates a channel list, and updates the channel list stored in the memory using the channel information. Automatic channel scan device of the satellite broadcast receiver comprising a. The method of claim 1, And the antenna information is a latitude and longitude value which are position values that the antenna can receive and a frequency value of the LNB in the antenna. A method of scanning a channel in a satellite broadcast receiver that receives a satellite broadcast signal through an antenna and stores a channel list for any satellite broadcast receiver that transmits the antenna information and the satellite broadcast signal. Determining whether or not OAD data in which satellite position information is set is received from the satellite broadcasting transmitter; Calculating an area that can be scanned by the satellite broadcast reception based on the antenna information when receiving OAD data in which location information of the satellites is set; Determining whether there is at least one satellite scanable with an antenna of the satellite broadcast receiver among the satellites by comparing the position information of the satellites set in the OAD data with the calculated area; If the at least one scannable satellite exists as a result of the determination, displaying a list of scannable satellite (s) among satellites set in the OAD data on the display device; If any one of the list of satellites is selected, receiving channel information from the selected satellites, generating a channel list, and generating a channel list using the same. Automatic channel scan method of a satellite broadcast receiver comprising a.

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