KR100682320B1 - Multiplex output broadcasting receive system using single set-top box - Google Patents

Abstract

A multi-output broadcasting receiving system using a single set-top-box is provided to allow users located in different places to watch TV through a single set-top-box and remotely control the set-top-box using remote controllers from places having no set-top-box. A multi-output broadcasting receiving system includes a set-top-box(100), a plurality of host network connectors(130), a plurality of wireless remote controllers(180), a plurality of remote control signal receivers(150), and a plurality of guest network connectors(160). The set-top-box includes a main broadcasting processing module(110) and a plurality of sub broadcasting processing modules(120). The host network connectors respectively connected to the plurality of sub broadcasting processing modules. The wireless remote controllers transmit set-top-box control signals according to user's key operations. The remote control signal receivers detect the set-top-box control signals transmitted from the wireless remote controllers and output the detected set-top-box control signals. The guest network connectors receive and filter the set-top-box control signals, transmit the filtered signals through a network, and filter an A/V(Audio/Video) remote broadcasting signal provided from the network.

Description

Multiple output broadcasting receive system using single set-top box

1 is a functional block diagram showing the configuration of a multiple output broadcast receiving system using a single set top box according to an embodiment of the present invention;

2A is a functional block diagram illustrating an internal configuration of a main broadcast receiving processing module in a multiple output broadcast receiving system using a single set top box according to FIG. 1;

2B is a functional block diagram illustrating an internal configuration of a sub broadcast receiving processing module in a multiple output broadcast receiving system using a single set top box according to FIG. 1;

FIG. 3A illustrates a broadcasting channel frequency used as a carrier frequency in order to transmit a broadcast signal through a network in a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention. FIG.

3b is a diagram illustrating a process of transmitting a broadcast signal using a specific broadcast channel frequency in a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention;

3C is a diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention;

4 is a diagram illustrating a process of transmitting a set-top box control signal using frequency shift keying (FSK) modulation in a multiple output broadcast reception system using a single set-top box according to an embodiment of the present invention;

5 is a functional block diagram illustrating a configuration of a multiple output broadcast reception system using a single set top box according to a second embodiment of the present invention;

6 is a functional block diagram illustrating a configuration in which a third filter is added to a multiple output broadcast reception system using a single set top box according to FIG. 5;

7 is a functional block diagram illustrating a configuration in which a second filter is added to a multiple output broadcast reception system using a single set top box according to FIG. 6;

FIG. 8 is a functional block diagram illustrating a configuration in which a first filter is added to a multiple output broadcast reception system using a single set top box according to FIG. 7.

FIG. 9A illustrates a broadcasting channel frequency used as a carrier frequency in order to transmit a broadcast signal through a network in a multiple output broadcast reception system using a single set top box according to the second embodiment of the present invention. FIG.

9B is a diagram illustrating a process of transmitting a broadcast signal using a specific broadcast channel frequency in a multiple output broadcast reception system using a single set top box according to the second embodiment of the present invention.

9C is a diagram illustrating a process of transmitting a room transmission call using an intermediate frequency avoiding a broadcasting channel frequency in a multiple output broadcast receiving system using a single set top box according to a second embodiment of the present invention;

10 is a diagram illustrating a process of transmitting a set-top box control signal using frequency shift keying (FSK) modulation in a multiple output broadcast reception system using a single set-top box according to a second embodiment of the present invention.

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

100: set-top box 110: main broadcast receiving processing module

111: broadcast signal receiving unit 112: MPEG decoding processing unit

113: A / V broadcast signal output unit 120: sub broadcast receiving processing module

121: broadcast signal receiving unit 122: MPEG decoding processing unit

123: broadcast signal modulator 124: amplifier

125: remote control signal extraction unit 126: sub broadcast receiving processing module control unit

130: host network connection unit 131: first filter

132: second filter 136: FSK demodulation unit

140: main TV receiver 150: remote control signal receiver

160: guest network receiving unit 161: third filter

162: fourth filter 165: modulator

166: FSK modulator 170: sub TV receiver

180: wireless remote control 190: network

200: set-top box 210: main broadcast receiving processing module

220: sub broadcast receiving processing module 230: host network connection

231: first filter 232: second filter

236: FSK demodulator 240: main TV receiver

250: remote control signal receiver 260: guest network connection

261: third filter 262: fourth filter

265 modulator 266 FSK modulator

270: sub-TV receiver 280: wireless remote control

290: network

The present invention relates to a multiple output broadcast reception system using a single set-top box, and more particularly, to a set-top box and a plurality of TV receivers each installed at various places in a home through a network of TV RF lines already installed in a building. By connecting the filter technology, the IR data of the remote control and the TV RF A / V signal can coexist in the network (RF line), allowing the user to independently monitor the TV at one space through one set-top box. At the same time, it enables remote control of the set-top box through the remote control in other places where the set-top box is not installed. Even if it is moved, watching the broadcasting channel through the TV receiver A multiple output broadcast reception system using a single set-top box that enables.

In recent years, with the rapid development of digital technologies such as digital image compression and digital modulation / demodulation, standardization and commercialization of digital television (TV) broadcasting is rapidly progressing. In such a situation, a digital broadcast receiver such as a set top box (STB) that receives digital television broadcasts uses an original A / V (Audio / Video) by using a decoder provided in a receiver for a broadcast program selected by a user. After restoring the data, it is transmitted to an A / V output device such as a general TV, so that a user can selectively watch a broadcast program.

In addition, in recent years, most homes have one TV set in various places such as a home room, a living room, a study room, and the like. In the case of connecting these TVs to one set-top box, satellite TV, There is an advantage that you can watch cable broadcasting, digital terrestrial broadcasting.

However, the conventional method of connecting one set-top box to multiple TVs is not only difficult to transmit lossless signals from the set-top box to each room, but also requires additional line construction through track work in the home, thereby increasing installation costs. And there was a problem that the difficulty of the installation process occurs.

In addition, according to the conventional method of connecting one set-top box to multiple TVs, if you want to remotely control the set-top box from another place where the set-top box is not installed, purchase an expensive RF (UHF) remote control transceiver separately. Since it has to be installed, there is a problem that the inconvenience of redundant installation with the occurrence of cost duplication.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to connect one set-top box and a plurality of TV receivers each installed at various places in the home through a TV RF line already installed in the home. By incorporating filter technology, IR data from the remote control and TV RF A / V signals can coexist within a single RF line, allowing users to watch TV independently from each remote location via a single set-top box. At the same time, the remote control of the set-top box is possible through the remote control in other places where the set-top box is not installed, and the remote control can watch the broadcasting channel through the TV receiver of the remote place. To provide a multiple output broadcast reception system using a single set top box have.

In the multiple output broadcast reception system using a single set top box according to an embodiment of the present invention for achieving the above object, the channel of the broadcast signal received from the external transmission medium according to the user's input operation and selects the selected channel A main broadcast receiving processing module that outputs A / V broadcast signal and a channel of a broadcast signal received from an external transmission medium according to receiving a remote control signal, and then A / V broadcast signal of the selected channel (hereinafter, ' A set-top box having a plurality of sub-broadcast reception processing modules for modulating and outputting A / V remote broadcasting signals) at predetermined broadcasting frequencies; A first filter for filtering the set-top box control signal through a specific network and filtering the set-top box control signal to provide the remote control signal to a sub broadcast receiving processing module connected to the one of the plurality of sub broadcast receiving processing modules; A plurality of host network connection units each having a second filter for filtering and passing the A / V remote broadcasting signal through the sub broadcast receiving processing module to pass through the network, respectively, are connected one to one with the plurality of sub broadcast receiving processing modules. ; A plurality of wireless remote controllers for transmitting a set-top box control signal by a user's key operation; A plurality of remote control signal receivers for detecting and outputting a set top box control signal transmitted from the wireless remote controller; And a third filter for filtering the set-top box control signal from the remote control signal receiver and filtering the set-top box control signal, and a fourth filter for filtering and passing the A / V remote broadcasting signal provided from the network. It is configured to include; a plurality of guest network connection.

A multiple output broadcast reception system using a single set-top box according to a second embodiment of the present invention for achieving the above object, selects the channel of the broadcast signal received from the external transmission medium according to the user's input operation and the selected The main broadcast receiving processing module outputs the A / V broadcast signal of the channel, and the channel of the broadcast signal received from the external transmission medium is selected as the remote control signal is provided through a specific network, and the A / V broadcast signal of the selected channel is selected. A set top box including a plurality of sub broadcast receiving processing modules for modulating a V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') to a predetermined broadcast frequency and outputting the same to the network; A plurality of wireless remote controllers for transmitting a set-top box control signal by a user's key operation; A plurality of remote control signal receivers for detecting a set-top box control signal transmitted from the wireless remote controller and outputting the signal to the network; And a plurality of guest network connections including a fourth filter for filtering and passing the A / V telecast signal provided from the network.

Hereinafter, a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a functional block diagram illustrating a configuration of a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention.

Hereinafter, in order to simplify the description of the present invention, a detailed description of general known functions and configurations of the set-top box 100 that may unnecessarily obscure the subject matter of the present invention will be omitted.

In the multiple output broadcast reception system using a single set top box according to an embodiment of the present invention, as shown in FIG. 1, a set top having a main broadcast reception processing module 110 and a plurality of sub broadcast reception processing modules 120 is provided. The box 100, a plurality of host network connectors 130, a plurality of remote control signal receivers 150, a plurality of guest network connectors 160, and a plurality of wireless remote controllers 180 are provided. In this case, as shown in FIG. 1, the host network connection unit 130 may be provided with the same number of sub broadcast receiving processing modules 120 and may be configured to be connected to the sub broadcast receiving processing module 120 in a one-to-one correspondence. Only one host network connection unit 130 is provided to mix the signals output from each sub broadcast receiving processing module 120 and output to the second filter 132 of the host network connection unit 130, the first filter 131 It may be configured to output a signal provided from each sub-broadcast reception processing module 120.

 The main broadcast reception processing module 110 selects a channel of a broadcast signal received from an external transmission medium and outputs an A / V broadcast signal of the selected channel according to a user's input operation, which is illustrated in FIG. 2A. As shown, the broadcast signal receiver 111, the MPEG decoding processor 112, and the A / V broadcast signal output unit 113 are included.

Figure 2a is a functional block diagram showing the internal configuration of the main broadcast receiving processing module 110 in a multiple output broadcast receiving system using a single set top box according to FIG.

The broadcast signal receiver 111 receives a broadcast signal from an external transmission medium and outputs the broadcast signal to the MPEG decoding processor 112. The MPEG decoding processor 112 decodes the received broadcast signal and processes the D / A conversion. It plays a role.

In addition, the A / V broadcast signal output unit 113 receives a broadcast signal from the MPEG decoding processing unit 112 and converts the A / V broadcast signal to the main TV receiver 140.

The sub broadcast receiving processing module 120 selects a channel of a broadcast signal received from an external transmission medium as a remote control signal is provided, and transmits an A / V room transmission call of the selected channel (hereinafter, 'A / V remote broadcasting'). Signal '), which is modulated and output at a predetermined broadcast frequency, which is represented by a broadcast signal receiver 121, an MPEG decoding processor 122, a broadcast signal modulator 123, and an amplifier 124 as shown in FIG. ), A remote control signal extracting unit 125 and a sub broadcast receiving processing module control unit 126.

FIG. 2B is a functional block diagram illustrating an internal configuration of a sub broadcast receiving processing module in a multiple output broadcast receiving system using a single set top box according to FIG. 1.

The broadcast signal receiver 121 receives a broadcast signal from an external transmission medium and outputs the broadcast signal to the MPEG decoding processor 122. The MPEG decoding processor 122 decodes the received broadcast signal and processes the D / A conversion. It plays a role.

The broadcast signal modulator 123 receives the broadcast signal from the MPEG decoding processor 122, modulates the broadcast signal to a predetermined broadcast frequency, and outputs it to the second filter 132. The remote control signal extractor 125 receives the first filter. The remote control signal provided from 131 is extracted and output, and the sub broadcast receiving processing module controller 126 sets the broadcast channel of the broadcast signal receiver according to the remote control signal received from the remote control signal extractor 125. It plays a role. In addition, the sub broadcast receiving processing module control unit 126 has processing functions of system setting, menu setting, personal video recorder (PVR) control, and electronic program guide (EPG) control according to a remote control signal. In this case, an amplifier 124 may be installed at the end of the broadcast signal modulator 123 to compensate for the loss of the A / V remote broadcast signal according to the line distance.

Here, the main broadcast receiving processing module 110 and the plurality of sub broadcast receiving processing modules 120 may be implemented by one chipset, or may be implemented by a separate separate chipset.

 When the host network connection unit 130 receives the set-top box control signal through a specific network 190, the host network connection unit 130 filters the remote control signal to the sub broadcast reception processing module 120 connected to itself among the plurality of sub broadcast reception processing modules. When the A / V remote broadcasting signal is received through the first filter 131 and the sub broadcast receiving processing module 120 connected to the sub broadcast receiving processing module, the filter is filtered and passed through the network 190. 2 filter 132 is provided.

 The wireless remote controller 180 transmits a set-top box control signal by a user's key operation. At this time, the remote control signal transmitted from the wireless remote controller 180 is an infrared (IR) signal. Each of the plurality of wireless remote controllers 180 includes a plurality of custom codes, each of which is variable, and when the A / V broadcast signal output from the guest network connection unit 160 and the custom code of the wireless remote controller 180 correspond to the custom codes. The remote broadcast reception processing module 120 can be remotely controlled. Therefore, even when the wireless remote controller 180 located in each distinct place is changed from each other, if the custom code of the wireless remote controller 180 is variable, it is possible to find a custom code that can control the sub-broadcast reception processing module 120. Even if the wireless remote controller 180 is moved to another place, it is possible to watch a desired broadcast channel through the sub TV receiver 150 of each distinct place.

 The remote control signal receiver 150 detects and outputs a set-top box control signal transmitted from the wireless remote controller 180.

In addition, the guest network connection unit 160 receives the set-top box control signal from the remote control signal receiving unit 150 and filters the filter to pass it to the network 190 and the A / provided from the network 190. And a fourth filter 162 for filtering and passing the V telecast signal.

In this case, in general, the first filter 131 and the third filter 161 are a low pass filter (LPF) covering the remote control control signal frequency band, and the second filter 132 and the fourth filter 162 are VHF / UHF. It is a high pass filter (HPF) covering the frequency band.

In addition, the set top box 100 may be configured as a single set including a plurality of host network connectors 130 including the first filter 131 and the second filter 132, and likewise, the third filter 161. And the guest network connection unit 160 having the fourth filter 162 may be configured as a single set including a remote control signal receiving unit.

In addition, the network 190 generally refers to a pre-installed TV coaxial cable or a separately installed network cable.

Then, the operation of the multiple output broadcast reception system using a single set top box according to an embodiment of the present invention having the above configuration will be described with reference to FIGS. 1 and 2, but the set top box 100 and a plurality of The host network connection unit 130 is installed in the living room, and the plurality of guest network connection units 160 are installed in different places (eg, study rooms, study rooms, etc.), and the plurality of host network connection units 130 and the plurality of guest network connection units. 140 will be described assuming that each is connected to the RF terminal installed on the wall through the coaxial cable.

First, when the user performs a remote control through the wireless remote controller 180, the corresponding remote control signal receiver 150 of the plurality of remote control signal receiver detects the set-top box control signal transmitted from the wireless remote controller 180 and The third filter 161 of the connected guest network connection unit 160 is output, and the third filter 161 of the guest network connection unit 160 filters the set-top box control signal and passes it to the network 190.

Then, the first filter 131 of the host network connection unit 130 receives the set-top box control signal sent from the guest network connection unit 160 from the network 190 and filters it to the sub-broadcast reception processing module 120 connected with itself. The sub broadcast receiving processing module 120 receives a signal (remote control signal) from which the set-top box control signal is filtered from the first filter 131 of the host network connection unit 130. Then, the sub broadcast receiving processing module 120 modulates the A / V remote broadcasting signal received from the external transmission medium according to the remote control signal and outputs it to the second filter 132 of the host network connection unit 130 connected thereto. do.

Thereafter, the second filter 132 of the host network connection unit 130 receives the modulated A / V remote broadcasting signal through the sub broadcast receiving processing module 120 and passes the received A / V remote broadcasting signal to the network 190. The fourth filter 162 of the connection unit 160 receives the A / V remote broadcasting signal and filters it and passes it through. Then, the sub-TV receiver 170 receives the A / V remote broadcasting signal and displays the broadcast of the corresponding program to the user.

In this case, in general, the first filter 131 and the third filter 161 are a low pass filter (LPF) covering the remote control control signal frequency band, and the second filter 132 and the fourth filter 162 are VHF / UHF. It is a high pass filter (HPF) covering the frequency band.

Meanwhile, the main broadcast receiving processing module 110 selects a channel of a broadcast signal received from an external transmission medium according to a user's input operation in the broadcast signal receiving unit 111 and outputs a digital broadcast signal. Then, the MPEG decoding processing unit 120 decodes the broadcast signal, and the A / V broadcast signal output unit 113 processes the broadcast signal into an A / V broadcast signal conforming to the output standard to the main TV receiver 170. Output

In this case, the plurality of wireless remote controllers 180 may include a plurality of custom codes, each of which may be variable, and if the A / V broadcast signal output from the guest network connection unit 160 and the custom code of the wireless remote controller 180 are matched to the custom code, The remote broadcast reception processing module 120 can be remotely controlled. Therefore, even when the wireless remote controller 180 located in each distinct place is changed from each other, if the custom code of the wireless remote controller 180 is variable, it is possible to find a custom code that can control the sub-broadcast reception processing module 120. Even if the wireless remote controller 180 is moved to another place, it is possible to watch a desired broadcast channel through the sub TV receiver 150 of each distinct place.

3A is a diagram illustrating a broadcast channel frequency used as a carrier frequency in order to transmit a broadcast signal through a network in a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention.

As shown in FIG. 3A, in order to output the A / V telecast signal to the network 190 from the sub broadcast receiving processing module 120, the broadcast signal modulator 123 outputs the A / V telecast signal for a specific broadcast. Modulate at the channel frequency and output. A process of using a specific broadcast channel frequency such as FIG. 3A as a carrier frequency is shown in FIG. 3B.

3B is a diagram illustrating a process of transmitting a broadcast signal using a specific broadcast channel frequency in a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention.

Referring to the case illustrated in FIG. 3B, the broadcast signal modulator 123 modulates the A / V remote broadcast signal to 474 MHz corresponding to the channel 21 and then outputs it to the second filter 132. The A / V telecast signal modulated at 474 MHz is then transmitted to the fourth filter 162 via the network 190. At this time, if the fourth filter 162 is set to filter and pass a signal corresponding to 474 MHz among the signals input from the network 190, the broadcast signal modulator 123 modulates the output to 474 MHz for channel 21. A / V remote broadcasting signal is passed. Accordingly, the sub-TV receiver 170 may display the A / V broadcast signal modulated by the broadcast signal modulator 123.

On the other hand, the broadcast signal modulator may use an intermediate frequency that avoids the broadcast channel frequency as a carrier frequency. This is conceptually illustrated in FIG. 3C.

3C is a diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast reception system using a single set top box according to an embodiment of the present invention.

Referring to the case illustrated in FIG. 3C, the broadcast signal modulator 123 modulates the A / V remote broadcast signal to 478 MHz corresponding to the intermediate frequency of channels 21 and 22 shown in FIG. 3A, and then the second filter. Output to (132). The A / V telecast signal modulated at 478 MHz is then transmitted to the fourth filter 162 via the network 190. At this time, if the fourth filter 162 is configured to filter and pass a signal corresponding to 478 MHz among the signals input from the network 190, the broadcast signal modulator 123 modulates the output to 478 MHz for channel 21. A / V remote broadcasting signal is passed.

In this case, since the sub-TV receiver 170 is manufactured according to the existing broadcasting channel frequency, the sub-TV receiver 170 should be modulated with a signal corresponding to the channel 21. Thus, by placing the modulator 165 between the fourth filter 162 and the second TV receiver 170, the modulator 165 is filtered by the fourth filter 162 and passed through a 478 MHz A / V remote. The signal is remodulated to 474 MHz corresponding to channel 21. Accordingly, the sub-TV receiver 170 may display the A / V broadcast signal modulated by the broadcast signal modulator 123.

4 is a diagram illustrating a process of transmitting a set-top box control signal using frequency shift keying (FSK) modulation in a multiple output broadcast reception system using a single set-top box according to an embodiment of the present invention.

The guest network connection unit 160 may be configured to output a modulated frequency shift keying (FSK) signal when the set top box control signal is received from the remote control signal receiver 150. That is, the apparatus further includes an FSK modulator 166 that performs FSK modulation to pass the FSK modulated set-top box control signal to the network 190.

The host network connection unit 130 is then provided with the FSK modulated remote control signal. Next, the FSK demodulation unit 136 performs FSK demodulation to restore the original remote control signal, and then outputs the remote control signal to the remote control signal extraction unit 125 of the sub broadcast reception processing module 120 to transmit the remote control signal. do.

5 is a functional block diagram illustrating a configuration of a multiple output broadcast reception system using a single set top box according to a second embodiment of the present invention.

1 includes all of the first filter 131 to the fourth filter 162, while the second embodiment shown in FIGS. 5 to 8 includes the fourth filter 262. FIG. The remaining filters are optional and may be included in the component.

In the multiple output broadcast reception system using a single set top box according to the second embodiment of the present invention illustrated in FIG. 5, a set top box including a main broadcast reception processing module 210 and a plurality of sub broadcast reception processing modules 220 may be provided. 200, a plurality of remote control signal receivers 250 and a plurality of guest network connectors 260.

At this time, the main broadcast receiving processing module 210 selects a channel of a broadcast signal received from an external transmission medium according to a user's input operation, and outputs an A / V broadcast signal of the selected channel. The module 220 selects a channel of a broadcast signal received from an external transmission medium as a remote control signal is provided through a specific network 290, and then selects an A / V broadcast signal (hereinafter, 'A / V') of the selected channel. Remote broadcasting signal) and modulates it to a predetermined broadcast frequency and outputs it to the network 290.

At this time, the sub broadcast receiving processing module 220 is a broadcast signal receiver for receiving and outputting a broadcast signal from an external transmission medium, an MPEG decoding processor for receiving a digital broadcast signal from a broadcast signal receiver, decoding the received signal, and performing a D / A conversion process. And receiving the broadcast signal from the MPEG decoding processor, modulating the broadcast signal to a predetermined broadcast frequency, and then outputting the broadcast signal to the network 290 or the second filter 232 from the broadcast signal modulator, the network 290 or the first filter 231. And a sub broadcast receiving processing module controller for setting a broadcast channel of the broadcast signal receiver according to the remote control signal extracted from the remote control signal extracting unit and extracting the remote control signal. In addition, the sub broadcast receiving processing module controller has a processing function of system setting, menu setting, PVR (Personal Video Recoreder) control, and EPG (Electronic Program Guide) control according to the remote control signal. In this case, an amplifier may be installed at the end of the broadcast signal modulator to compensate for the loss of the A / V remote broadcast signal according to the line distance.

Here, the main broadcast receiving processing module 210 and the plurality of sub broadcast receiving processing modules 220 may be implemented as one chipset, or may be implemented as separate chipsets.

The wireless remote controller 280 transmits a set-top box control signal by a user's key operation. At this time, the remote control signal transmitted from the wireless remote controller 280 is an infrared (IR) signal. The plurality of wireless remote controllers 280 each include a plurality of customizable codes, and if the A / V broadcasting signals output from the guest network connection unit 260 and the custom codes of the wireless remote controller 280 correspond to the custom codes. The remote broadcast reception processing module 220 can be remotely controlled. Therefore, even when the wireless remote controller 280 located in each distinct place is changed, if you change the custom code of the wireless remote controller 280 it is possible to find a custom code that can control the sub-broadcast reception processing module 220, Even if the wireless remote controller 280 is moved to another place, it is possible to watch a desired broadcast channel through the sub-TV receiver 250 of each distinct place.

The remote control signal receiver 250 detects the set-top box control signal transmitted from the wireless remote controller 280 and outputs the signal to the network 290.

In addition, the guest network connection unit 260 includes a fourth filter 262 which filters and passes the A / V remote broadcasting signal provided from the network 290. At this time, the fourth filter 262 is a high pass filter (HPF) covering the VHF / UHF frequency band.

In addition, the network 290 generally refers to a pre-installed TV coaxial cable or a separately installed network cable.

FIG. 6 is a functional block diagram illustrating a configuration in which a third filter is added to a multiple output broadcast reception system using a single set top box according to FIG. 5.

As shown in FIG. 6, the guest network connection unit 260 further includes a third filter 261 that filters the set-top box control signal from the remote control signal receiver 250 and passes the filter to the network 290. It is characterized in that, the other configuration is the same as the embodiment shown in FIG. In this case, the third filter 261 is a low pass filter (LPF) covering the remote control control signal frequency band, and the fourth filter 262 is a high pass filter (HPF) covering the VHF / UHF frequency band.

FIG. 7 is a functional block diagram illustrating a configuration in which a second filter is added to a multiple output broadcast reception system using a single set top box according to FIG. 6.

As shown in FIG. 7, when the A / V remote broadcasting signal is received through the sub broadcast receiving processing module 220 connected to the sub broadcast receiving processing module, the second filter passes the filtered A / V remote broadcasting signal to the network 290. It is characterized in that the host network connection unit 230 having a 232 is additionally installed, the other configuration is the same as the embodiment shown in FIG. At this time, the third filter 261 is a low pass filter (LPF) covering the remote control control signal frequency band, the second filter 232 and the fourth filter 262 is a high pass filter (HPF) covering the VHF / UHF frequency band )to be.

FIG. 8 is a functional block diagram illustrating a configuration in which a first filter is added to a multiple output broadcast reception system using a single set top box according to FIG. 7.

As shown in FIG. 8, the host network connection unit 230 filters the set-top box control signal through the network 290 to remotely control the broadcast receiving processing module 220 connected to the sub broadcast receiving processing module. It further comprises a first filter 231 for providing a control signal, the other configuration is the same as the embodiment shown in FIG. In this case, the first filter 231 and the third filter 261 are a low pass filter (LPF) covering the remote control control signal frequency band, and the second filter 232 and the fourth filter 262 are VHF / UHF frequency band. It is a high pass filter (HPF) that covers.

FIG. 9A illustrates a broadcasting channel frequency used as a carrier frequency for transmitting a broadcast signal through a network in a multiple output broadcast reception system using a single set top box according to a second embodiment of the present invention.

As shown in FIG. 9A, in order to output the A / V remote broadcasting signal to the network 290 in the sub broadcast receiving processing module 220, the broadcasting signal modulator 223 outputs the A / V remote broadcasting signal for a specific broadcasting. Modulate at the channel frequency and output. A process of using a specific broadcast channel frequency such as FIG. 9A as a carrier frequency is shown in FIG. 9B.

9B is a diagram illustrating a process of transmitting a broadcast signal using a specific broadcast channel frequency in a multiple output broadcast reception system using a single set-top box according to a second embodiment of the present invention.

9B, the broadcast signal modulator 223 modulates the A / V remote broadcast signal to 474 MHz corresponding to channel 21 and outputs the same to the network 290. The A / V telecast signal modulated at 474 MHz is then transmitted to the fourth filter 262 via the network 290. In this case, if the fourth filter 262 is set to filter and pass a signal corresponding to 474 MHz among the signals input from the network 290, the broadcast signal modulator 223 modulates the output to 474 MHz to match the channel 21. A / V remote broadcasting signal is passed. Accordingly, the sub-TV receiver 270 can display the A / V broadcast signal modulated by the broadcast signal modulator 223.

On the other hand, the broadcast signal modulator may use an intermediate frequency that avoids the broadcast channel frequency as a carrier frequency. This is conceptually illustrated in FIG. 9C.

9C is a diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast reception system using a single set top box according to a second embodiment of the present invention.

9C, the broadcast signal modulator 223 modulates the A / V remote broadcast signal to 478 MHz corresponding to the intermediate frequency of channels 21 and 22 shown in FIG. 9A, and then network 290. Will output The A / V telecast signal modulated at 478 MHz is then transmitted to the fourth filter 262 via the network 290. In this case, if the fourth filter 262 is configured to filter and pass a signal corresponding to 478 MHz among the signals input from the network 290, the broadcast signal modulator 223 modulates the output to 478 MHz for channel 21. A / V remote broadcasting signal is passed.

In this case, since the sub-TV receiver 270 is manufactured for the existing broadcasting channel frequency, the sub-TV receiver 270 should be modulated with a signal corresponding to the channel 21. Thus, by placing the modulator 265 between the fourth filter 262 and the sub-TV receiver 270, the modulator 265 is filtered by the fourth filter 262 and passed through the 478 MHz A / V telecast. Remodulate the signal to 474 MHz, corresponding to channel 21. Accordingly, the sub-TV receiver 270 can display the A / V broadcast signal modulated by the broadcast signal modulator 223.

10 is a diagram illustrating a process of transmitting a set-top box control signal using frequency shift keying (FSK) modulation in a multiple output broadcast reception system using a single set-top box according to a second embodiment of the present invention.

The guest network connection unit 260 may be configured to output an FSK (Frequency Shift Keying) modulated signal when the set top box control signal is received from the remote control signal receiver 250. That is, the apparatus further includes an FSK modulator 266 that performs FSK modulation to pass the FSK modulated set-top box control signal to the network 290.

The host network connection unit 230 is then provided with the FSK modulated remote control signal. Next, the FSK demodulation unit 236 performs FSK demodulation to restore the original remote control signal, and then outputs the remote control signal to the remote control signal extraction unit 225 of the sub broadcast reception processing module 220 to transmit the remote control signal. do.

Although the present invention has been described in more detail with reference to several embodiments, the present invention is not necessarily limited to these embodiments, and various modifications can be made without departing from the spirit of the present invention.

As described above, according to the multi-output broadcasting reception system using a single set top box according to the present invention, each of the set top box and the various places in the home are each via a TV RF line formed of a network already installed in a specific place such as a home or a building. Connect multiple installed TV receivers, and combine filter technology to allow IR data from the remote control and TV RF A / V signals to coexist within a single RF line, even in multiple spaces without a set-top box. Remote control of the set-top box over the network through the wireless remote control, you can watch TV of the desired broadcast channel, each remote control has a number of variable custom code built-in, so even if the remote control is moved to any remote location broadcast through the TV receiver of the remote location It is effective to watch.

Claims (28)

A main broadcast receiving processing module for selecting a channel of a broadcast signal received from an external transmission medium according to a user's input operation and outputting an A / V broadcast signal of the selected channel, and receiving a remote control signal from the external transmission medium. A plurality of sub-broadcast reception processing modules for selecting a channel of the received broadcast signal and modulating and outputting an A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of the selected channel at a predetermined broadcast frequency; Set top box provided; A first filter for providing the remote control signal to a sub broadcast receiving processing module connected to itself by filtering the set top box control signal when the control signal is received through a specific network; A plurality of host network connection units each having a second filter for filtering the A / V remote broadcasting signal through a broadcast receiving processing module and passing the filtered A / V remote broadcasting signal to the network; A plurality of wireless remote controllers for transmitting a set-top box control signal by a user's key operation; A plurality of remote control signal receivers for detecting and outputting a set top box control signal transmitted from the wireless remote controller; And A plurality of filters including a third filter for filtering the set-top box control signal when the set-top box control signal is received from the remote control signal receiving unit, and a fourth filter for filtering and passing the A / V remote broadcasting signal provided from the network; Guest network connection; Multiple output broadcast receiving system using a single set-top box configured to include. The method of claim 1, Each of the plurality of wireless remote controllers includes a plurality of custom codes, each of which is variable, and outputs the A / V remote broadcasting signal when the A / V remote broadcasting signal output from the guest network connection unit matches the custom code of the wireless remote controller. Multiple output broadcast reception system using a single set-top box, characterized in that the sub-broadcast reception processing module can be remotely controlled. The method according to claim 1 or 2, The plurality of sub broadcast receiving processing modules may include: a broadcast signal receiving unit receiving and outputting a broadcast signal from an external transmission medium; An MPEG decoding processing unit which receives the digital broadcasting signal from the broadcasting signal receiving unit and decodes the digital broadcasting signal and performs a D / A conversion process; A broadcast signal modulator which receives a broadcast signal from the MPEG decoding processor and modulates the broadcast signal to a predetermined broadcast frequency and then outputs it to the second filter; A remote control signal extracting unit for extracting a remote control signal provided from the first filter and outputting the remote control signal; And And a sub broadcast receiving processing module control unit configured to set a broadcast channel of the broadcast signal receiving unit according to the remote control signal inputted from the remote control signal extracting unit. The method of claim 3, The plurality of sub-broadcast reception module further comprises an amplifier for compensating for the loss of the A / V remote broadcasting signal according to the line distance. The method of claim 4, wherein The sub-broadcast reception module control unit uses a single set-top box according to a remote control signal, including system setting, menu setting, PVR (Personal Video Recorder) control, and EPG (Electronic Program Guide) control. Output broadcast receiving system. The method of claim 5, The first filter and the third filter are a low pass filter (LPF) covering a remote control control signal frequency band, and the second filter and the fourth filter is a high pass filter (HPF) covering a VHF / UHF frequency band. Multiple output broadcast reception system using a single set top box. The method of claim 6, The set top box is a multiple output broadcast reception system using a single set top box, characterized in that consisting of a single set including a plurality of host network connection unit having a first filter and a second filter. The method of claim 6, And a plurality of guest network connection units including the third filter and the fourth filter comprise a single set including the remote control signal receiver. The method of claim 6, The A / V remote broadcast signal output from the broadcast signal modulator in the plurality of sub broadcast receiving processing modules is set to a specific broadcast channel frequency, multiple output broadcast reception system using a single set-top box. The method of claim 6, The A / V remote broadcast signal output from the broadcast signal modulators in the plurality of sub-broadcast reception processing modules is set to an intermediate frequency avoiding a broadcast channel frequency, and the plurality of guest network connection units are the intermediate frequency. And a modulator for remodulating and outputting a signal to a specific broadcast channel frequency. The method of claim 6, The plurality of guest network connection units may further include an FSK modulation unit configured to output a frequency shift keying (FSK) modulated signal when the set-top box control signal is received from the remote control signal receiver, and the host network connection unit may be an FSK modulated remote control signal. When receiving the FSK multiple output broadcast reception system using a single set-top box, characterized in that it further comprises an FSK demodulation unit for outputting. The method of claim 6, The network is a multiple output broadcast reception system using a single set-top box, characterized in that the TV coaxial cable or a separately installed network cable. delete The main broadcast receiving processing module selects a channel of a broadcast signal received from an external transmission medium according to a user's input operation and outputs the A / V broadcast signal of the selected channel, and receives a remote control signal through a specific network. Accordingly, a channel of a broadcast signal received from an external transmission medium is selected, and an A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of the selected channel is modulated to a predetermined broadcast frequency and output to the network. A set top box having a plurality of sub broadcast receiving processing modules; A plurality of wireless remote controllers for transmitting a set-top box control signal by a user's key operation; A plurality of remote control signal receivers for detecting a set-top box control signal transmitted from the wireless remote controller and outputting the signal to the network; And A high pass filter (HPF) covering a VHF / UHF frequency band, the plurality of guest network connections including a fourth filter for filtering and passing the A / V telecast signal provided from the network; Multiple output broadcast receiving system using a single set-top box is configured to include. The method of claim 14, The plurality of guest network connection units may further include a third filter for filtering the set-top box control signal from the remote control signal receiver and passing the filtered signal to the network. system. The method of claim 15, The third filter is a low pass filter (LPF) covering a remote control control signal frequency band, and the fourth filter is a high pass filter (HPF) covering a VHF / UHF frequency band, multiple output using a single set-top box Broadcast receiving system. The method of claim 15, When the A / V remote broadcasting signal is received through the sub broadcasting receiving processing module connected to the self among the plurality of sub broadcasting receiving processing modules, a plurality of host network connection units including a second filter for filtering and passing the A / V remote broadcasting signal to the network are added. Multiple output broadcast receiving system using a single set-top box, characterized in that the installation. The method of claim 17, The third filter is a low pass filter (LPF) covering the remote control control signal frequency band, the second filter and the fourth filter is a single set-top box, characterized in that the high pass filter (HPF) covering the VHF / UHF frequency band Multiple output broadcast reception system using. The method of claim 17, The plurality of host network connection units may further include a first filter for filtering the set top box control signal through the network and providing the remote control signal to a sub broadcast receiving processing module connected to the sub broadcast receiving processing module. Multiple output broadcast receiving system using a single set-top box, characterized in that it comprises a. The method of claim 19, The first filter and the third filter are a low pass filter (LPF) covering a remote control control signal frequency band, and the second filter and the fourth filter is a high pass filter (HPF) covering a VHF / UHF frequency band. Multiple output broadcast reception system using a single set top box. The method according to any one of claims 14 to 20, The plurality of sub broadcast receiving processing modules may include: a broadcast signal receiving unit receiving and outputting a broadcast signal from an external transmission medium; An MPEG decoding processing unit which receives the digital broadcasting signal from the broadcasting signal receiving unit and decodes the digital broadcasting signal and performs a D / A conversion process; A broadcast signal modulator for receiving a broadcast signal from the MPEG decoding processor and modulating the broadcast signal to a predetermined broadcast frequency and outputting the broadcast signal to the network or the second filter; A remote control signal extraction unit for extracting a remote control signal provided from the network or the first filter and outputting the remote control signal; And And a sub broadcast receiving processing module control unit configured to set a broadcast channel of the broadcast signal receiving unit according to the remote control signal inputted from the remote control signal extracting unit. The method of claim 21, The plurality of sub-broadcast reception module further comprises an amplifier for compensating for the loss of the A / V remote broadcasting signal according to the line distance. The method of claim 22, The sub-broadcast reception module control unit uses a single set-top box according to a remote control signal, including system setting, menu setting, PVR (Personal Video Recorder) control, and EPG (Electronic Program Guide) control. Output broadcast receiving system. The method of claim 22, The A / V remote broadcast signal output from the broadcast signal modulator in the plurality of sub broadcast receiving processing modules is set to a specific broadcast channel frequency, multiple output broadcast reception system using a single set-top box. The method of claim 22, The A / V remote broadcast signal output from the broadcast signal modulator in the plurality of sub broadcast receiving processing modules is set to an intermediate frequency avoiding a broadcast channel frequency, and the plurality of guest network connection units are the intermediate frequency. And a modulator for remodulating and outputting a signal to a specific channel frequency for broadcasting. The method of claim 22, The plurality of guest network connection units may further include an FSK modulation unit configured to output a frequency shift keying (FSK) modulated signal when the set-top box control signal is received from the remote control signal receiver, and the host network connection unit may include the FSK modulated remote control signal. When receiving the FSK multiple output broadcast reception system using a single set-top box, characterized in that it further comprises an FSK demodulation unit for outputting. The method of claim 22, The network is a multiple output broadcast reception system using a single set-top box, characterized in that the TV coaxial cable or a separately installed network cable. The method of claim 22, Each of the plurality of wireless remote controllers includes a plurality of custom codes, each of which is variable, and outputs the A / V remote broadcasting signal when the A / V remote broadcasting signal output from the guest network connection unit matches the custom code of the wireless remote controller. Multiple output broadcast reception system using a single set-top box, characterized in that the sub-broadcast reception processing module can be remotely controlled.

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