KR100682986B1 - Apparatus and method for global roaming broadcasting on satellite - Google Patents

Abstract

A relay device having an international broadcasting roaming function in a satellite and a method therefor are provided to receive high image quality satellite broadcasting in real time in a remote station and allow a user to view the received high image quality satellite broadcasting by composing a communication device which connects a satellite with a satellite and transmitting a satellite broadcasting data stream, provided to a local station through an ISL(Inter-Satellite Link) in a geostationary satellite located in the sky of the local station, to a geostationary satellite located in the sky of the remote station. A receiving antenna(331) receives a satellite broadcasting TV signal transmitted from a terrestrial satellite broadcasting transmission station. A reception amplifying unit(332) filters the satellite broadcasting TV signal received in the receiving antenna(331), and performs the low noise amplification of the filtered signal. A signal distributing unit(333) distributes the satellite broadcasting TV filtered and amplified in the reception amplifying unit(332) to the first transmitting terminal and the second transmitting terminal. The first transmitting terminal, having a frequency converting unit A(337), a high power amplifying unit A(338), and a transmitting antenna A(339), transmits the satellite broadcasting TV signal distributed in the signal distributing unit(333) to another geostationary satellite. The second transmitting terminal, having a frequency converting unit B(334), a high power amplifying unit B(335), and a transmitting antenna B(336), transmits the satellite broadcasting TV signal distributed in the signal distributing unit(333) to a satellite broadcasting receiving terminal(34).

Description

Satellite repeater with international broadcasting roaming function and its method {Apparatus and method for global roaming broadcasting on satellite}

1 is a configuration diagram of an embodiment of a conventional satellite broadcasting service system;

2 is a configuration diagram of an embodiment of a conventional satellite relay;

3 is a configuration diagram of an embodiment of a satellite broadcasting service system to which the present invention is applied;

4 is a configuration diagram of an embodiment of a satellite relay device having an international broadcast roaming function according to the present invention;

5 is a flowchart illustrating an embodiment of an international broadcast roaming method in a satellite relay according to the present invention.

* Explanation of symbols for the main parts of the drawings

331: receiving antenna 332: receiving amplifier

333: signal distributor 334: second frequency converter

335: second high power amplifier 336: second transmission antenna

337: first frequency converter 338: first high output amplifier

339: first transmit antenna

The present invention relates to a relay apparatus and a method of a satellite having an international broadcasting roaming function, and more particularly, to an inter-satellite link (ISL) in a geostationary satellite located above a country, having a communication means for connecting the satellite and the satellite. The present invention relates to a satellite relay and a method for transmitting a satellite broadcasting data stream provided to a home station through an inter-satellite link in real time to a geostationary satellite located in another country.

In general, there is a very limited way for a domestic resident to watch a TV (TeleVision) broadcast in a country where a person residing in Korea travels or dispatches overseas for a limited time, or because of immigration.

In the first method, a TV Cassette Recorder (VCR) is used to receive recorded data from a TV broadcast by mail, in person, or online, and then aired or even broadcasted through a local Korean broadcasting station. If not, a large number of copies were borrowed from local supermarkets or video stores.

Here, a conventional satellite broadcasting service system will be described with reference to FIG. 1.

As shown in FIG. 1, the conventional satellite broadcasting service system provides a satellite broadcasting transmitting station 12 with a terrestrial TV program that is converted, compressed, and stored into digital data so that a TV broadcaster of a home country can be watched by foreign residents. Service provider 11, a satellite for delivering the terrestrial TV program provided from the service provider 11 to the first geostationary satellite 13, and delivering it to the service provider 15 in another region via offline or online. A first geostationary satellite (stop geostationary satellite A) 13 for transmitting a satellite broadcasting TV signal received from a broadcasting transmitter station 12, the satellite broadcasting transmitter station 12 to the service area; 13) a terrestrial TV receiving terminal (area A) 14 for receiving a satellite TV signal from the terrestrial TV program received from the satellite broadcasting transmitting station 12; The service provider 15 of another region for providing to the sex broadcasting transmission station 16, and the terrestrial TV program received from the service provider 15 of the other region to the second geostationary satellite 17 A second geostationary satellite 17 for transmitting the satellite broadcasting TV signal received from the satellite broadcasting transmitting station 16, the satellite broadcasting transmitting station 16 of the other region to the corresponding service area, and the second geostationary satellite 17 A satellite broadcast receiving terminal (area B) 18 for receiving satellite broadcast TV signals.

In this case, the first geostationary satellite 13, as shown in Figure 2, the satellite broadcasting relay unit 130 for transmitting the satellite broadcast TV signal received from the satellite broadcasting station 12 to the service area; Include.

That is, the satellite broadcasting repeater may include a receiving antenna 131 for receiving a satellite broadcasting TV signal transmitted from a satellite broadcasting transmitting station 12 on the ground, and filtering the satellite broadcasting TV signal received by the receiving antenna 131. A reception amplifier 132 for low noise amplification, a frequency converter 133 for converting the satellite broadcasting TV signal filtered and amplified by the reception amplifier 132 into a downlink frequency, and a conversion in the frequency converter 133 A high power amplifier 134 for amplifying a satellite TV signal at high power, and a transmission antenna 135 for transmitting the satellite broadcast TV signal amplified by the high power amplifier 134 to the ground.

In addition, the satellite broadcasting receivers 34 and 36 include a home receiver and a portable receiver.

This conventional method has a significant difference between the date broadcasted in the home country and the date available for viewing abroad, due to the time required for delivery to viewing, and thus, there is a problem in that the continuity of the broadcast may not be maintained.

As a second method, there is a method of watching a local TV broadcast through a monitor of a computer by accessing a website through the Internet. However, in general, an Internet network that is widely used transmits and receives enough data to watch a high-definition TV broadcast. Not only is there a lack of capacity, but also the data transmission speed is not fast enough enough to watch only on the palm-sized screen, there is a problem that the reality does not survive properly.

In this case, when the size of the screen is increased, the resolution is the same, but only the screen size is increased, so that the image quality is too low so that the eyes are easily tired and the resolution is low, which causes the bleeding appearance. For example, if the screen size of a video shot at a long distance such as a sports game is enlarged, the resolution is blurry and the image data capacity is increased due to a lot of motion, so that the viewer is able to watch the game properly. none.

In addition, there is an inconvenience of waiting for a certain time due to connecting, opening, and buffering when changing a channel while watching TV through the Internet.

Third, there is a method of renting a large-capacity dedicated line or multiple small-capacity leased lines to transmit a domestic TV broadcast through a dedicated wired network, but it is still difficult to transmit a large amount of image data in high definition like a TV broadcast. In addition to the shortage, there is a disadvantage that the system configuration is complicated.

As a result, the conventional method for a domestic citizen watching a TV broadcast of a foreign country has a considerable difference between the broadcast date in the home country and the date that can be watched abroad due to the time required for delivery to viewing when using the broadcast. In some cases, the continuity of the broadcast is not maintained, and domestic TV broadcasting can be used at low cost when using the Internet, but the image quality is too low. There is a problem such as complexity.

The present invention has been proposed to solve the above problems, and provided with a communication means for connecting the satellite to the satellite to provide to the country via an inter-satellite link (ISL) in geostationary satellite located over the country; By providing a satellite broadcast data stream in real time to geostationary satellites located in other countries, it provides a repeater and method of a satellite having an international broadcasting roaming function so that other countries can receive and watch high-definition satellite broadcasting in real time. Its purpose is to.

Other objects and advantages of the present invention can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. Also, it will be readily appreciated that the objects and advantages of the present invention may be realized by the means and combinations thereof indicated in the claims.

An apparatus of the present invention for achieving the above object is a satellite relay apparatus having an international broadcast roaming function, comprising: a receiving antenna for receiving a satellite broadcasting TV signal transmitted from a terrestrial satellite broadcasting transmitting station; Reception amplification means for filtering and low noise amplifying the satellite broadcasting TV signal received by the reception antenna; Signal distribution means for distributing the satellite broadcasting TV signal filtered and low noise amplified by the reception amplification means to a first transmitting end and a second transmitting end; A first transmitter for transmitting the satellite broadcast TV signal distributed by the signal distribution means to another geostationary satellite; And a second transmitter for transmitting the satellite broadcast TV signal distributed by the signal distribution means to the satellite broadcast receiving terminal.

On the other hand, the method of the present invention, in the international broadcast roaming method in a satellite relay device, receiving a satellite broadcast TV signal transmitted from a terrestrial satellite broadcasting station; Filtering and low noise amplifying the received satellite TV signal; Distributing the filtered and low noise amplified satellite TV signal to a first transmitter and a second transmitter; Converting the distributed satellite TV signal into a downlink frequency, amplifying the signal to a high output, and transmitting the same to a second geostationary satellite; And converting the distributed satellite TV signal into a downlink frequency, amplifying the signal to a high power, and then transmitting the satellite signal to a satellite broadcasting receiver.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. There will be. In addition, in describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a configuration diagram of an embodiment of a satellite broadcasting service system to which the present invention is applied.

As shown in FIG. 3, the satellite broadcasting service system to which the present invention is applied converts, compresses, and stores terrestrial TV programs into digital data so that TV broadcasts of domestic countries can be watched by foreign residents. Satellite broadcasting transmitting station 32, the satellite for converting the terrestrial TV program provided from the service provider 32, the service provider 32 to provide the satellite to the first frequency of the orbiting satellite 33 to deliver The satellite broadcasting TV signal received from the broadcasting transmitting station 32 is transmitted to the corresponding service area through the first transmitting antenna (local station antenna), and roaming in the form of light waves or radio waves through the second transmitting antenna (satellite link antenna). From a first geostationary satellite (stop geostationary satellite A) 33, the first geostationary satellite 33, for delivering service to the desired second geostationary satellite 35. A satellite broadcasting receiving terminal (area A) 34 for receiving a sex broadcasting TV signal, and a second geostationary satellite for receiving a satellite broadcasting TV signal from the first geostationary satellite 33 and transmitting it to a corresponding service area; 35) and a satellite broadcast receiving terminal (area B) 36 for receiving satellite TV signals from the second geostationary satellite 35.

Here, the second transmit antenna includes an optical laser for communication.

In addition, the second geostationary satellite 35 amplifies the satellite broadcast TV signal received from the first geostationary satellite 33 through an inter-satellite link, and in the case of radio waves, immediately broadcasts the terrestrial satellite through a transmission antenna. In the case of light, the light is converted into an electrical signal using photoelectric (O / E) conversion, and then amplified and transmitted to the satellite broadcasting receiving terminal 36 on the ground.

4 is a diagram illustrating an embodiment of a satellite relay apparatus having an international broadcast roaming function according to the present invention.

As shown in FIG. 4, the satellite relay apparatus having the international broadcasting roaming function according to the present invention includes a receiving antenna 331 for receiving satellite TV signals transmitted from a satellite broadcasting transmitting station 32 on the ground. A reception amplifier 332 for filtering and low noise amplifying satellite TV signals received by the reception antenna 331, and a satellite TV signal filtered and low noise amplified by the reception amplifier 332 by a first frequency converter ( A signal distributor 333 for distributing to the frequency converter A) 334 and a second frequency converter (frequency converter B), and converts the satellite TV signal distributed by the signal distributor 333 to a downlink frequency. A second high power amplifier (high power amplifier B) for amplifying the satellite broadcasting TV signal converted by the second frequency converter 334 and the second frequency converter 334 to a high output. 335, the second high power Satellite broadcasting TV signals amplified by the width section 335 to transmit satellite signals to the terrestrial satellite receiving terminal 34 (the transmission antenna B) 336 and the satellite distribution distributed by the signal distribution section 333. A first high power amplification unit for converting a TV signal into a downlink frequency (frequency converting unit A) 337 and a first high power amplifying unit for amplifying the satellite broadcasting TV signal converted by the first frequency converting unit 337 to a high output. A second transmission antenna (transmission antenna A) for transmitting the satellite broadcasting TV signal amplified by the first (high power amplifier A) 338 and the first high output amplifier 338 to the second geostationary satellite 35. (339).

Here, between the first geostationary satellite 33 and the second geostationary satellite 35 for roaming international broadcasting, there is almost no free space loss occurring in the propagation of radio waves regardless of weather changes on the ground. Because of this, it is possible to transmit with very little output when transmitting data information through radio waves or light, which is very efficient for long distance data transmission.

5 is a flowchart illustrating an embodiment of an international broadcast roaming method in a satellite relay according to the present invention.

First, a satellite broadcast TV signal transmitted from a terrestrial satellite broadcast station is received (501).

Thereafter, the received satellite TV signal is filtered and low noise amplified (502).

Thereafter, the filtered and low noise amplified satellite TV signal is distributed to a first transmitter and a second transmitter (503).

Thereafter, the distributed satellite broadcasting TV signal is converted to a downlink frequency, amplified to a high output, and transmitted to the second geostationary satellite (504).

In operation 505, the distributed satellite TV signal is converted to a downlink frequency, amplified to a high output, and then transmitted to the satellite broadcasting receiver.

As described above, the method of the present invention may be implemented as a program and stored in a recording medium (CD-ROM, RAM, ROM, floppy disk, hard disk, magneto-optical disk, etc.) in a computer-readable form. Since this process can be easily implemented by those skilled in the art will not be described in more detail.

The present invention described above is capable of various substitutions, modifications, and changes without departing from the technical spirit of the present invention for those skilled in the art to which the present invention pertains. It is not limited by the drawings.

As described above, the present invention includes a satellite broadcasting data stream provided to a local station via an inter-satellite link (ISL) in a geostationary satellite located above the station, having a communication means for connecting the satellite to the satellite. By real-time transmission to the geostationary orbit satellite located in the air, it is effective to receive and watch high-definition satellite broadcasting of its own country in real time.

In addition, the present invention has an effect that allows the local people living abroad to watch the high-definition satellite broadcasting as in the country in real time without time delay.

In addition, the present invention by using the same signal format and reception frequency as the satellite broadcasting in the country, it is possible to use the same satellite broadcasting receiver in the country, and therefore can use the satellite broadcasting receiver used in the country as it is economical waste There is an effect to reduce.

In addition, the present invention, unlike the broadcasting and broadcast area of the satellite due to the advantages of different broadcasting for each area of the cable broadcasting network or limited service area, there is a single satellite to cover the entire country as well as neighboring countries In addition, the same satellite broadcasting service can be provided at the same time.

In addition, the present invention allows a local citizen living abroad to easily watch their own TV broadcasts, so that many overseas residents or visiting overseas citizens can watch their own TV broadcasts, and thus, their political, economic, social, cultural, etc. The same information can be used in the same way as nationals, and it can be very helpful in helping their children learn their native language and understand their home country.

Claims (3)

In a satellite relay device having an international broadcast roaming function, A receiving antenna for receiving satellite TV signals transmitted from terrestrial satellite broadcasting stations; Reception amplification means for filtering and low noise amplifying the satellite broadcasting TV signal received by the reception antenna; Signal distribution means for distributing the satellite broadcasting TV signal filtered and low noise amplified by the reception amplification means to a first transmitting end and a second transmitting end; A first transmitter for transmitting the satellite broadcast TV signal distributed by the signal distribution means to another geostationary satellite; And A second transmitter for transmitting the satellite broadcast TV signal distributed by the signal distribution means to a satellite broadcast receiving terminal; Satellite repeater having an international broadcast roaming function comprising a. The method of claim 1, The first transmitting end, Frequency converting means for converting the satellite broadcast TV signal distributed by the signal distributing means into a downlink frequency; High output amplifying means for amplifying the satellite broadcasting TV signal converted by the frequency converting means with a high output; And Transmission antenna for transmitting the satellite broadcasting TV signal amplified by the high power amplifying means to a second geostationary satellite Satellite repeater having an international broadcast roaming function comprising a. In the international broadcast roaming method in a satellite relay, Receiving a satellite broadcast TV signal transmitted from a terrestrial satellite broadcast station; Filtering and low noise amplifying the received satellite TV signal; Distributing the filtered and low noise amplified satellite TV signal to a first transmitter and a second transmitter; Converting the distributed satellite TV signal into a downlink frequency, amplifying the signal to a high output, and transmitting the same to a second geostationary satellite; And Converting the distributed satellite TV signal to a downlink frequency, amplifying the signal to a high output and transmitting the same to a satellite broadcasting receiving terminal; International broadcast roaming method in a satellite relay device comprising a.

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