KR20070037153A - Multiplex output broadcasting receive system using single set-top box - Google Patents

Abstract

The present invention connects a set-top box and a plurality of TV receivers respectively installed in various places in a home through a network (RF line) already installed in a home or a specific place, and incorporates filter technology to IR data of a remote controller in an RF line. And TV RF A / V signals can coexist, allowing users to watch TV independently from each other through one set-top box and remote control in other places where no set-top box is installed. The present invention relates to a multiple output broadcast receiving system using a single set top box that enables remote control of a set top box through the present invention. According to the present invention, a set top box is connected to one set top box and a plurality of TV receivers at the same time, There is no need to purchase separate line construction and expensive RF (UHF) remote control transceiver for remote control. Therefore, the effect becomes easy to be installed, as well as construction so reducing installation costs.

Digital Broadcast Receiver, Set Top Box, TV Receiver, Filter Technology, LPF, HPF, RF Modulator, Coaxial Cable

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;

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

FIG. 2B is a functional block diagram illustrating an internal configuration of a second broadcast reception processing module in a multiple output broadcast reception 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.

FIG. 9C is a diagram illustrating a process of transmitting a room transmission call 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.

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;

11 is a system configuration diagram showing a modification of the case where there are multiple spaces in a multiple output broadcast reception system using a single set top box according to the present invention.

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

100: set-top box 110: the first broadcast receiving processing module

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

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

130: host network connection unit 131: first filter

132: second filter 136: FSK demodulation unit

140: first TV receiver 150: remote control signal receiver

160: guest network receiving unit 161: third filter

162: fourth filter 165: modulator

166: FSK modulator 170: second TV receiver

180: wireless remote control 190: network

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

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

231: first filter 232: second filter

236: FSK demodulation unit 240: the first TV receiver

250: remote control signal receiver 260: guest network connection

261: third filter 262: fourth filter

265 modulator 266 FSK modulator

270: second 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 RF line, allowing the user to watch TV at each space independently through one set-top box. At the same time, the present invention relates to a multi-output broadcast reception system using a single set-top box that enables remote control of the set-top box through a remote control in another place where the set-top box is not installed.

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 in a single RF line, allowing users to watch TV independently in each room through a set-top box. At the same time, the present invention provides a multiple output broadcast reception system using a single set-top box to enable remote control of the set-top box through a remote control in another place where the set-top box is not installed.

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 first broadcast reception processing module for outputting an A / V broadcast signal of the first broadcast signal; and a channel of the broadcast signal received from an external transmission medium in response to the remote control signal being provided, and the A / V broadcast signal of the selected channel (hereinafter, A set-top box having one or more second broadcast receiving processing modules for modulating and outputting an 'A / V remote broadcast signal' to a predetermined broadcast frequency;

A first filter for filtering the set-top box control signal through a specific network and providing the remote control signal to the second broadcast receiving processing module; and the A / V remote broadcasting through the second broadcast receiving processing module. At least one host network connection unit having a second filter for filtering the signal when the signal is received and passing it through the network;

At least one remote control signal receiver for detecting and outputting a set-top box control signal transmitted from a wireless remote controller; And

A third filter for filtering the set-top box control signal from the remote control signal receiving unit 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; The guest network connection unit; is configured to include.

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 A first broadcast receiving processing module which outputs the A / V broadcast signal of the channel, and a channel of the broadcast signal received from an external transmission medium in response to receiving a remote control signal through a specific network, and selecting the A of the selected channel. A set-top box having one or more second 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;

At least one remote control signal receiver for detecting a set-top box control signal transmitted from a wireless remote controller and outputting the detected signal to the network; And

And at least one guest network connection unit having 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 first broadcast reception processing module 110 and a second broadcast reception processing module 120 is provided. The box 100, the host network connection unit 130, the remote control signal receiving unit 150, and the guest network connection unit 160 are configured.

On the other hand, Figure 11 is a system configuration diagram showing a modified example when there are multiple spaces in the multiple output broadcast receiving system using a single set-top box according to the present invention, Figure 11 is a first broadcast receiving Set-top box 100 having a processing module 110 and at least one second broadcast receiving processing module 120, at least one host network connection unit 130, at least one remote control signal receiving unit 150 and at least one guest network connection unit It consists of 160. In this case, the host network connection unit 130 may be configured to be connected to the second broadcast reception processing module 120 in a one-to-one correspondence with the same number as the second broadcast reception processing module 120 as shown in FIG. Alternatively, only one host network connection unit 130 is provided to mix the signals output from each of the second broadcast reception processing modules 120 and output to the second filter 132 of the host network connection unit 130. The signal output from the filter 131 may be separated and output to each second broadcast reception processing module 120.

The multiple output broadcast reception system using a single set-top box according to an embodiment of the present invention may be used even when there are two spaces as shown in FIGS. 1 to 4 or multiple spaces as shown in FIG. Since it is extended as it is within the scope without departing from the technical spirit of, repeated description of the same configuration is omitted.

The first 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 and outputs an A / V broadcast signal of the selected channel. As shown, the broadcast signal receiver 111, the MPEG decoding processor 112, and the A / V broadcast signal output unit 113 are configured.

FIG. 2A is a functional block diagram illustrating an internal configuration of the first broadcast receiving processing module 110 in the multiple output broadcast receiving system using the single set top box according to FIG. 1.

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 converts it to D / A. It plays a role.

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

The second broadcast receiving processing module 120 selects a channel of a broadcast signal received from an external transmission medium and receives an A / V broadcast signal of the selected channel (hereinafter, 'A / V'). Remote broadcasting signal) and modulates and outputs a predetermined broadcast frequency, which is shown in FIG. 2B, which includes a broadcast signal receiver 121, an MPEG decoding processor 122, a broadcast signal modulator 123, and an amplifier. 124, the remote control signal extraction section 125 and the second broadcast reception processing module control section 126.

FIG. 2B is a functional block diagram illustrating an internal configuration of the second broadcast receiving processing module 120 in the multiple output broadcast receiving system using the 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 converts it to D / A. 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 the modulated signal to the second filter 132. The remote control signal extractor 125 Extracting and outputting a remote control signal provided from the first filter 131, the second broadcast receiving processing module control unit 126 is the broadcast according to the remote control signal received from the remote control signal extraction unit 125 It sets the broadcast channel of the signal receiver. In addition, the second broadcast receiving processing module control unit 126 has processing functions 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 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 first broadcast receiving processing module 110 and the second broadcast receiving processing module 120 may be implemented in one chipset, or may be implemented in a separate chipset.

The host network connection unit 130 receives the set-top box control signal through the specific network 190 and filters the set-top box control signal to provide the remote control signal to the second broadcast receiving processing module 120 and the first filter 131. And a second filter 132 that filters the A / V remote broadcasting signal through the second broadcast receiving processing module and passes the filtered A / V remote broadcasting signal to the network 190.

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 it to pass through the network 190 to the third filter 161 and from the network 190. And a fourth filter 162 for filtering and passing the provided A / 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. High-pass filter (HPF) covering the UHF frequency band.

The set top box 100 may be configured as a single set including a host network connection unit 130 including a first filter 131 and a 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 the 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 receiving 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 host network connection unit of the set top box ( 130 is installed in the living room, and the guest network connection unit 160 is installed in another place (room, study room, etc.), the host network connection unit 130 and the guest network connection unit 140, respectively, the coaxial cable It is assumed that it is connected to the RF terminal installed on the wall through the description.

First, when a user performs a remote control through the wireless remote controller 180, the remote control signal receiver 150 detects the set-top box control signal transmitted from the wireless remote controller 180 to the guest network connection unit 160 The third filter 161 is output, and the fourth filter 162 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 filter the second broadcast receiving processing module. The second 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 second broadcast receiving processing module 120 modulates the A / V remote broadcasting signal received from an external transmission medium according to the remote control signal and outputs the second filter 132 of the host network connection unit 130. do.

Thereafter, the second filter 132 of the host network connection unit 130 receives the modulated A / V remote broadcasting signal through the second broadcast receiving processing module 120 and passes it to the network 190. In addition, the fourth filter 162 of the guest network connection unit 160 receives the A / V telecast signal and filters it and passes it through. Then, the second 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 / It is a high pass filter (HPF) covering the UHF frequency band.

Meanwhile, the first 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. Thereafter, the MPEG decoding processor 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 an output standard. )

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 in the second broadcast receiving processing module 120, the A / V telecast signal is output from the broadcast signal modulator 123. Modulate and output to a specific broadcast channel frequency. 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.

3B, the broadcast signal modulator 123 modulates the A / V telecast signal to 474 MHz corresponding to channel 21 and outputs the same 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 configured to filter and pass a signal corresponding to 474 MHz among the signals input from the network 190, the broadcast signal modulator 123 may adjust to 474 MHz to match the channel 21. Pass the modulated output A / V telecast signal. Accordingly, the second 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.

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. Output to the filter 132. The A / V telecast signal modulated at 478 MHz is then transmitted to the fourth filter 162 via the network 190. In this case, 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 channel to 478 MHz to fit the channel 21. Pass the output A / V remote broadcasting signal.

In this case, since the second TV receiver 170 is manufactured according to the existing broadcasting channel frequency, the second TV receiver 170 should be modulated into a signal corresponding to the channel 21. Therefore, by providing a 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 478 MHz. A / V remote broadcasting signal is remodulated to 474 MHz corresponding to channel 21. Accordingly, the second 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 an FSK (Frequency Shift Keying) modulated 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.

Then, the host network connection unit 130 receives 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 second broadcast reception processing module 120 to transmit the remote control signal. Done.

On the other hand, Figure 11 illustrates in detail the multiple output broadcast reception system using a single set-top box according to the present invention applied when there are multiple spaces (room), the operation in the case of a plurality of spaces in this space Since the process is the same as the above-described operation process described with reference to FIGS. 1 to 4, repeated description of unnecessary operation process is omitted.

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.

A multiple output broadcast reception system using a single set top box according to the second embodiment of the present invention shown in FIG. 5 includes a set top box including a first broadcast reception processing module 210 and a second broadcast reception processing module 220. 200), the remote control signal receiver 250 and the guest network connection unit 260.

In the multiple output broadcast reception system using a single set top box according to the second embodiment of the present invention, as shown in FIG. 11, there may be modified examples, such as the case where there are several spaces. A set-top box 100 having a first broadcast receiving processing module 110 and at least one second broadcast receiving processing module 120 shown in 11, at least one remote control signal receiving unit 150 and at least one guest network connection unit ( The system may be configured in a corresponding configuration as shown in 160.

In the multiple output broadcast reception system using a single set-top box according to the second embodiment of the present invention, even when there are two spaced rooms as shown in FIGS. 5 to 10 or multiple spaced rooms as shown in FIG. Since it is extended as it is without departing from the technical spirit of the invention, repeated description of the same configuration is omitted.

In this case, the first 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. 2 The broadcast receiving processing 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 A / V broadcast signal of the selected channel (hereinafter, A / V remote broadcast signal) is modulated to a predetermined broadcast frequency and output to the network 290.

In this case, the second broadcast receiving processing module 220 receives a broadcast signal from an external transmission medium, outputs a broadcast signal receiving unit, receives a digital broadcast signal from the broadcast signal receiving unit, decodes it, and performs a D / A conversion process. An MPEG decoding processor, a broadcast signal modulator that receives a broadcast signal from the MPEG decoding processor and modulates the broadcast signal to a predetermined broadcast frequency and outputs the signal to the network 290 or the second filter 232, the network 290, or the A remote control signal extracting unit extracting and outputting a remote control signal provided from the first filter 231, and setting a broadcast channel of the broadcast signal receiving unit according to the remote control signal received from the remote control signal extracting unit; And a second broadcast receiving processing module controller. In addition, the second broadcast receiving processing module control unit 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 first broadcast receiving processing module 210 and the second broadcast receiving processing module 220 may be implemented in one chipset, or may be implemented in a separate chipset.

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 for filtering and passing the A / V remote broadcasting signal provided from the network 290. In this case, 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, when the guest network connection unit 260 receives the set-top box control signal from the remote control signal receiver 250, the guest network connection unit 260 filters the set-top box control signal and passes the filter to the network 290. Characterized in that it further comprises, 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 second broadcast receiving processing module 220, the second filter 232 is filtered to pass the A / V remote broadcasting signal to the network 290. The host network connection unit 230 is further installed, and the rest of the 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, the second filter 232 and the fourth filter 262 is a high pass filter covering the VHF / UHF frequency band (HPF).

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, when the host network connection unit 230 receives the set-top box control signal through the network 290, the host network connection unit 230 filters the set-top box control signal to provide the remote control signal to the second broadcast receiving processing module 220. It characterized in that it further comprises a first filter 231, 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 a remote control control signal frequency band, and the second filter 232 and the fourth filter 262 are VHF / UHF. It is a high pass filter (HPF) covering the frequency band.

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 broadcast signal from the second broadcast reception processing module 220 to the network 290, the A / V remote broadcast signal is output from the broadcast signal modulator 223. Modulate and output to a specific broadcast channel frequency. A process of using a specific broadcast channel frequency such as FIG. 9A as a carrier frequency is illustrated 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. At this time, 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 to 474 MHz to match the channel 21. Pass the output A / V remote broadcasting signal. Accordingly, the second TV receiver 270 may 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 telecast signal to 478 MHz corresponding to the intermediate frequency of channels 21 and 22 shown in FIG. 9A. ) The A / V telecast signal modulated at 478 MHz is then transmitted to the fourth filter 262 via the network 290. At this time, if the fourth filter 262 is set to filter and pass a signal corresponding to 478 MHz among the signals input from the network 290, the broadcast signal modulator 223 modulates to 478 MHz to match the channel 21. Pass the output A / V remote broadcasting signal.

In this case, since the second TV receiver 270 is manufactured according to the existing broadcasting channel frequency, the second TV receiver 270 should be modulated into a signal corresponding to the channel 21. Therefore, by placing the modulator 265 between the fourth filter 262 and the second TV receiver 270, the modulator 265 is filtered by the fourth filter 262 and passed through 478 MHz. It remodulates A / V remote broadcasting signal to 474 MHz corresponding to channel 21. Accordingly, the second TV receiver 270 may 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 modulate and output a frequency shift keying (FSK) 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.

Then, the host network connection unit 230 receives 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 second broadcast reception processing module 220. Will be delivered.

On the other hand, Figure 11 illustrates in detail the multiple output broadcast reception system using a single set-top box according to the present invention applied when there are multiple spaces (room), the operation in the case of a plurality of spaces in this space Since the process is the same as the above-described operation process described with reference to FIGS. 5 to 10, repeated description of unnecessary operation process is omitted.

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 multiple output broadcast reception system using a single set top box according to the present invention, a plurality of TVs are installed in one set-top box and various places in a home through a TV RF line formed of a network already installed in a home and a building. Connect the receiver, but combine filter technology so that the IR data of the remote control and the TV RF A / V signal can coexist within a single RF line, allowing the user to independently monitor the TV at one remote location via one 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, thereby eliminating the need for a separate line construction and expensive RF (UHF) remote control transceiver purchase. It is effective.

Claims (26)

A first broadcast receiving processing module which 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, and an external transmission medium as a remote control signal is provided; At least one second broadcast receiving processing module for selecting a channel of a broadcast signal received from the channel 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 with; A first filter for filtering the set-top box control signal through a specific network and providing the remote control signal to the second broadcast receiving processing module; and the A / V remote broadcasting through the second broadcast receiving processing module. At least one host network connection unit having a second filter for filtering the signal when the signal is received and passing it through the network; At least one remote control signal receiver for detecting and outputting a set-top box control signal transmitted from a wireless remote controller; And A third filter for filtering the set-top box control signal from the remote control signal receiving unit 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; Guest network connection unit; Multiple output broadcast receiving system using a single set-top box configured to include. The method of claim 1, The second broadcast receiving processing module includes: 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 second broadcast receiving processing module controller configured to set a broadcast channel of the broadcast signal receiving unit according to the remote control signal received from the remote control signal extracting unit. The method of claim 2, The second broadcast receiving processing module further includes an amplifier for compensating for the loss of the A / V remote broadcasting signal according to the line distance. The method of claim 3, The second broadcast receiving processing module control unit uses a single set-top box, which includes processing of system setting, menu setting, PVR (Personal Video Recorder) control, and EPG (Electronic Program Guide) control according to a remote control signal. Multiple output broadcast reception system. The method according to any one of claims 1 to 4, 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 5, The set top box is a multiple output broadcast reception system using a single set top box, characterized in that it comprises a single set including a host network connection having a first filter and a second filter. The method of claim 5, And a guest network connection unit including the third filter and the fourth filter comprises a single set including the remote control signal receiver. The method according to any one of claims 2 to 4, The A / V remote broadcast signal output from the broadcast signal modulator in the second broadcast receiving processing module is set to a specific broadcast channel frequency, multiple output broadcast reception system using a single set-top box. The method according to any one of claims 2 to 4, The A / V remote broadcast signal output from the broadcast signal modulator in the second broadcast receiving processing module is set to an intermediate frequency avoiding a broadcast channel frequency, and the guest network connection part specifies the intermediate frequency signal. The multiple output broadcast receiving system using a single set-top box, characterized in that it further comprises a modulator for remodulating and outputting the broadcast channel frequency. The method according to any one of claims 2 to 4, The guest network connection unit 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 receiving unit, and the host network connection unit provides the FSK modulated remote control signal. And receiving the FSK demodulator and outputting the received FSK demodulation unit. The method of claim 5, 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. A first 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 through a specific network. Selects a channel of a broadcast signal received from an external transmission medium, modulates an A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of the selected channel to a predetermined broadcast frequency and outputs the signal to the network. A set top box having one or more second broadcast receiving processing modules; At least one remote control signal receiver for detecting a set-top box control signal transmitted from a wireless remote controller and outputting the detected signal to the network; And And at least one guest network connection unit having a fourth filter for filtering and passing the A / V remote broadcasting signal provided from the network. The method of claim 12, And the fourth filter is a high pass filter (HPF) covering a VHF / UHF frequency band. The method of claim 12, The guest network connection unit may further include a third filter for filtering the set-top box control signal from the remote control signal receiver and passing it through the network. The method of claim 14, 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 14, When the A / V remote broadcasting signal is received through the second broadcast receiving processing module, a host network connection unit having a second filter for filtering the filter and passing it to the network is additionally installed. Output broadcast receiving system. The method of claim 16, 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 16, The host network connection unit further includes a first filter for filtering the set-top box control signal through the network and providing the remote control signal to the second broadcast receiving processing module. Multiple output broadcast reception system. The method of claim 18, 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 12 to 19, The second broadcast receiving processing module includes: 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 second broadcast receiving processing module controller configured to set a broadcast channel of the broadcast signal receiving unit according to the remote control signal received from the remote control signal extracting unit. The method of claim 20, The second broadcast receiving processing module further includes an amplifier for compensating for the loss of the A / V remote broadcasting signal according to the line distance. The method of claim 21, The second broadcast receiving processing module control unit uses a single set-top box, which includes processing of system setting, menu setting, PVR (Personal Video Recorder) control, and EPG (Electronic Program Guide) control according to a remote control signal. Multiple output broadcast reception system. The method of claim 21, The A / V remote broadcast signal output from the broadcast signal modulator in the second broadcast receiving processing module is set to a specific broadcast channel frequency, multiple output broadcast reception system using a single set-top box. The method of claim 21, The A / V remote broadcast signal output from the broadcast signal modulator in the second broadcast receiving processing module is set to an intermediate frequency avoiding a broadcast channel frequency, and the guest network connection part specifies the intermediate frequency signal. Multiple output broadcast receiving system using a single set-top box, characterized in that it further comprises a modulator for remodulated output to the channel frequency of the broadcast. The method of claim 21, The guest network connection unit 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 receiving unit, and the host network connection unit provides the FSK modulated remote control signal. And receiving the FSK demodulator and outputting the received FSK demodulation unit. The method of claim 21, 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.

Images