KR20070038858A - Multiplex output broadcasting monitoring system using single set-top box - Google Patents

Abstract

The present invention connects one set-top box and a plurality of monitors (LCDs) respectively installed in various places in a home through a network already installed in a home or a specific place, and incorporates filter technology to control the IR of a remote controller in a network (RF cable). A multi-output broadcasting monitoring system using a single set-top box that enables the user to remotely control the set-top box at another remote location where no set-top box is installed by enabling data and A / V remote broadcasting signals to coexist. As a result, according to the present invention, the user can conveniently watch a desired broadcast through a monitor (LCD) at each remote location where no set-top box is installed. In addition, since there is no need for a separate line construction and expensive RF (UHF) remote control transceiver purchase, the cost is reduced, and the installation construction is simplified.

Set top box, broadcasting receiver module, monitor, filter technology

Description

Multiple output broadcasting monitoring system using single set-top box}

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

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

3 is a functional block diagram illustrating an internal configuration of a second broadcast reception processing module in a multiple output broadcast monitoring system using a single set top box according to FIG. 1;

4 is a reference diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast monitoring system using a single set top box according to FIG. 1;

5 is a system configuration diagram illustrating a configuration of a multiple output broadcast monitoring system using a single set top box according to another embodiment of the present invention;

6 is a functional block diagram illustrating an internal configuration of a first broadcast reception processing module in a multiple output broadcast monitoring system using a single set top box according to FIG. 5;

7 is a functional block diagram illustrating an internal configuration of a second broadcast reception processing module in a multiple output broadcast monitoring system using a single set top box according to FIG. 5;

FIG. 8 is a reference diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast monitoring system using a single set top box according to FIG. 5;

9 is a system configuration diagram showing an example of a case where there are multiple remote rooms in a multiple output broadcast monitoring 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 140: remote control receiver

150: guest network connection video matching unit

151: third filter 152: fourth filter

153: screen configuration unit 154: formatter

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

211: broadcast signal receiving unit 212: MPEG decoding processing unit

213: A / V broadcast signal output unit 220: second broadcast receiving processing module

221: broadcast signal receiving unit 222: MPEG decoding processing unit

223: broadcast signal modulator 224: amplifier

225: remote control signal extraction unit 226: second broadcast receiving processing module control unit

230: host network connection unit 231: first filter

232: second filter 240: remote control receiver

250: guest network connection video matching unit

251: third filter 252: fourth filter

253: screen configuration unit 254: formatter

The present invention relates to a multiple output broadcast monitoring system using a single set-top box, and more particularly, to a set-top box and a plurality of monitors (LCDs) each installed at various places in a home through a network already installed in a home or a specific place. By connecting the filter technology, IR data of the remote control and A / V remote broadcasting signal can coexist in the network (RF cable) so that the user can use it in other remote places where the set-top box is not installed. The present invention relates to a multiple output broadcast monitoring system using a single set top box that enables remote control of a set top box.

Recently, with the rapid development of digital technologies such as digital image compression and digital modulation / demodulation, the standardization and commercialization of digital television (TV) broadcasting has been rapidly developed. In such a situation, a digital broadcast receiver such as a set-top box receiving a digital television broadcast restores the broadcast program selected by the user to the original A / V (Audio / Video) data using a decoder provided in the receiver, and then the general television. By transmitting to an A / V output device such as to allow a user to selectively watch a broadcast program.

In recent years, most households have one television set in various places such as a home room, a living room, a study room, and the like. When the multiple TVs are connected to a single set-top box, each TV set includes satellite broadcasting, There is an advantage that you can watch cable broadcasting, digital terrestrial broadcasting.

However, as described above, the conventional method of connecting one set-top box to several 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. Since the conditions must be satisfied, there was a problem that an increase in installation cost and difficulty in the installation process occur.

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 in another place where the set-top box is not installed, an expensive RF (UHF) remote control transceiver is separately provided. Since it has to be purchased and installed, there is a problem that the inconvenience of duplicate installation occurs with the occurrence of duplicated cost.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to install one set-top box and several places in the home, respectively, through a network installed in the home or a specific place by incorporating filter technology. Connect a plurality of monitors (LCD), and realize that the IR data of the remote control and A / V remote broadcasting signal can coexist within the network (RF cable) so that the user cannot install another set-top box. The present invention provides a multi-output broadcast monitoring system using a single set-top box that enables remote control of the set-top box at each remote location and enables convenient viewing of desired broadcasts through a monitor (LCD).

In order to achieve the above object, the multi-output broadcasting monitoring system using the single set top box of the present invention selects a channel of a broadcast signal received from an external transmission medium according to a user's input operation, and selects an A / V broadcast signal of the selected channel. A first broadcast receiving processing module for outputting a signal, and selecting a channel of a broadcast signal received from an external transmission medium according to receiving a remote control signal, and A / V broadcast signal of the selected channel (hereinafter referred to as 'A / V remote broadcast'). A set-top box having one or more second broadcast receiving processing modules for modulating and outputting a signal &quot; 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 which filters the signal when it receives the signal and passes it through the network; At least one remote control 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 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. A screen composition unit which synchronizes the A / V remote broadcasting signal provided through the filter and composes and outputs the screen according to the broadcasting standard such as NTSC, and the A / V broadcasting signal configured according to the broadcasting standard such as NTSC from the screen component. And at least one guest network-connected image matching unit having a formatter configured to receive and format the output to be compatible with the monitor.

In addition, the multi-output broadcasting monitoring system using a single set-top box according to another embodiment of the present invention, selects the channel of the broadcast signal received from the external transmission medium in accordance with the user's input operation and A / V broadcast signal of the selected channel And a channel of the broadcast signal received from an external transmission medium according to receiving the remote control signal through a specific network and outputting the A / V broadcast signal (hereinafter, ' A set-top box having at least one second broadcast receiving processing module for modulating an A / V remote broadcasting signal) to a predetermined broadcasting frequency and outputting the same to the network; At least one remote control receiver for detecting a set top box control signal transmitted from a wireless remote controller and outputting the detected signal to the network; And a fourth filter for filtering and passing the A / V remote broadcasting signal provided from the network, and synchronizing the A / V remote broadcasting signal provided through the fourth filter, and configuring a screen according to a broadcasting standard such as NTSC. At least one guest network connection image having a screen configuration unit for outputting and a formatter for receiving an A / V broadcast signal configured according to a broadcasting standard such as NTSC from the screen configuration unit and formatting the same to be applied to a monitor. Matching unit; configured to include.

Hereinafter, a multi-output broadcasting monitoring 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 system configuration diagram illustrating a configuration of a multiple output broadcast monitoring system using a single set top box according to an embodiment of the present invention, and FIG. 2 is a first diagram of a multiple output broadcast monitoring system using a single set top box according to FIG. 1. FIG. 3 is a functional block diagram illustrating an internal configuration of a broadcast reception processing module. FIG. 3 is a functional block diagram illustrating an internal configuration of a second broadcast reception processing module in a multiple output broadcast monitoring system using a single set top box according to FIG. 1. 1 is a reference diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast monitoring system using a single set top box according to FIG. 1.

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.

Multi-output broadcasting monitoring system using a single set-top box according to an embodiment of the present invention, a set-top having a first broadcast receiving processing module 110 and a second broadcast receiving processing module 120 as shown in FIG. The host network connection unit 130 including the box 100, the first filter 131, and the second filter 132, the remote control receiver 140, the third filter 151, the fourth filter 152, and the screen configuration. The guest network connection image matching unit 150 includes a unit 153 and a formatter 154.

On the other hand, Figure 9 is a system configuration diagram showing a variation of the case where there are multiple space in the multiple output broadcast monitoring system using a single set-top box according to the present invention, Figure 9 is a first broadcast receiving processing module Set-top box 100 having a 110 and at least one second broadcast receiving processing module 120, at least one host network connection unit 130, at least one remote control receiver 140 and at least one guest network connection image matching unit ( 150).

In this case, as shown in FIG. 9, the host network connection unit 130 may be provided in the same number as the second broadcast receiving processing module 120 and connected to the second broadcast receiving processing module 120 in a one-to-one correspondence. Only one host network connection unit 130 is provided to mix and output signals received from each of the second broadcast reception processing modules 120, or separate signals provided through the network 10 to receive each second broadcast reception. It may be configured to be provided to the processing module 120.

In the multiple output broadcast monitoring system using a single set-top box according to an embodiment of the present invention, even when there are two spaces as shown in FIG. 1 or multiple spaces as shown in FIG. Since it is extended as it is within the scope without departing from, 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 and outputs an A / V broadcast signal of the selected channel according to a user's input operation, which is illustrated in FIG. 2. As shown, the broadcast signal receiver 111, the MPEG decoding processor 112, and the A / V broadcast signal output unit 113 are included.

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. 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 into an A / V broadcast signal and outputs it to the TV receiver 30.

The second broadcast receiving processing module 120 selects a channel of a broadcast signal received from an external transmission medium in response to receiving a remote control signal, and then selects an A / V broadcast signal (hereinafter, 'A / V remote of the selected channel). Broadcast signal ') to a predetermined broadcast frequency and outputs the broadcast signal receiver 121, MPEG decoding processor 122, broadcast signal modulator 123 and amplifier as shown in FIG. 124, the remote control signal extracting section 125 and the second broadcast receiving processing module control section 126.

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

In addition, 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 ) Extracts the remote control signal provided from the first filter 131 and outputs the remote control signal to the second broadcast reception processing module 126.

The second broadcast receiving processing module controller 126 sets a broadcast channel of the broadcast signal receiving unit 121 according to the remote control signal received from the remote control signal extracting unit 125.

Here, the second broadcast receiving processing module control unit 126 performs processing functions such as system setting, menu setting, PVR (Personal Video Recorder) control, and EPG (Electronic Program Guide) control according to the contents of the remote control signal.

Meanwhile, 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 as one chipset, and may be implemented as a separate separate chipset according to a selection.

In addition, the host network connection unit 130 receives the set-top box control signal through a specific network 10 and filters the first filter 131 for providing a remote control signal to the second broadcast receiving processing module 120 and When the A / V remote broadcasting signal is received through the second broadcast reception processing module, the second filter 132 filters the filtered A / V remote broadcasting signal and passes it to the network 10.

The remote control receiver 140 detects and outputs a set-top box control signal transmitted from the wireless remote controller 40.

In addition, the guest network connection image matching unit 150 receives the set-top box control signal from the remote control receiver 140 and filters the filtered filter to pass through the network 10 to the network 10, and is provided from the network 10. The fourth filter 152 for filtering and passing the A / V remote broadcasting signal and the A / V remote broadcasting signal provided through the fourth filter 152 are synchronized with each other, and are screened according to broadcasting standards such as NTSC, PAL, SECAM, etc. Formatter for outputting the screen configuration unit 153 and the A / V broadcast signal configured in accordance with the broadcast standards such as NTSC from the screen configuration unit 153 to format the output so as to be compatible with the monitor 20 ( A formatter 154.

In this case, the guest network connection image matching unit 150 may be configured as a single module.

Here, the first filter 131 and the third filter 151 is a low pass filter (LPF) covering the remote control control signal frequency band, the second filter 132 and the fourth filter 152 is VHF / UHF frequency band This is a high pass filter (HPF) that covers.

In addition, 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.

In addition, the guest network connection image matching unit 150 including the third filter 151, the fourth filter 152, the screen configuration unit 153, and the formatter 154 includes a single set including a remote control receiver 140. It may be configured as.

The network 190 is a pre-installed TV coaxial cable or a separately installed network cable, and is connected to a plurality of RF terminals 11 to form a network network between remote sites.

As the TV receiver 30 receives the A / V broadcast signal from the first broadcast reception processing module 110, the TV receiver 30 displays the broadcast of the corresponding program to the user, and the monitor 20 displays the second broadcast reception processing module 120. As the A / V remote broadcasting signal is provided from the user, the broadcasting of the corresponding program is displayed to the user.

Then, the operation of the multi-output broadcasting monitoring 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 to 4, but the host network connection unit 130 of the set top box is described. ) Is installed in the living room, and the guest network connection image matching unit 150 is installed in another place (home room, study room, etc.), the host network connection unit 130 and the guest network connection image matching unit 150 are respectively networked. It is assumed that it is connected to the RF terminal 11 installed on the wall through the coaxial cable (10).

First, when the user performs a remote control through the wireless remote control 40, the remote control receiver 140 detects the set-top box control signal transmitted from the wireless remote control 40 and outputs to the third filter 151, the third The filter 151 filters the provided set top box control signal and passes it to the network 10.

Then, the first filter 131 of the host network connection unit 130 receives the set-top box control signal from the network 10 and filters the set-top box control signal and outputs the filtered signal to the second broadcast receiving processing module 120.

In this case, 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.

Subsequently, the second broadcast receiving processing module 120 modulates the A / V remote broadcast signal received from the external transmission medium according to the remote control signal and outputs the second / first filter 132 of the host network connection unit 130.

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 the received A / V remote broadcasting signal to the network 10. The fourth filter 152 of the matching unit 150 receives the A / V remote broadcasting signal and filters it and passes it through.

Subsequently, the screen configuration unit 153 tunes the A / V remote broadcasting signal provided through the fourth filter 152 and configures and outputs the screen in accordance with broadcasting standards such as NTSC, PAL, and SECAM.

Then, the formatter 154 receives the A / V broadcast signal configured in accordance with the broadcast standard such as NTSC from the screen configuration unit 153 and formats it to be compatible with the monitor 20 and outputs it to the remote monitor 20. .

Meanwhile, the A / V remote broadcast signal output from the broadcast signal modulator 123 in the second broadcast receiving processing module 120 may be set to a specific broadcast channel frequency and output, and also avoiding the broadcast channel frequency. It may be set to an intermediate frequency and output.

In this case, when the A / V remote broadcasting signal is set to an intermediate frequency and output, the guest network connection image matching unit 150 further includes a modulator 155 for remodulating and outputting the intermediate frequency signal to a specific broadcasting channel frequency. It is configured and shown in Figure 4 as an example.

In addition, the guest network connection image matching unit 150 further includes an FSK modulation unit (not shown) that modulates and outputs FSK (Frequency Shift Keying) when the set-top box control signal is received from the remote control receiver 140. The host network connection unit 130 may further include an FSK demodulator (not shown) capable of outputting the FSK demodulated when the FSK modulated remote control signal is provided.

Meanwhile, a multi-output broadcasting monitoring system using a single set top box according to another embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 5 is a system configuration diagram illustrating a configuration of a multiple output broadcast monitoring system using a single set top box according to another embodiment of the present invention, and FIG. 6 is a first diagram of a multiple output broadcast monitoring system using a single set top box according to FIG. 5. FIG. 7 is a functional block diagram illustrating an internal configuration of a broadcast reception processing module, and FIG. 7 is a functional block diagram illustrating an internal configuration of a second broadcast reception processing module in a multiple output broadcast monitoring system using a single set top box according to FIG. 5. 5 is a reference diagram illustrating a process of transmitting a broadcast signal using an intermediate frequency avoiding a broadcast channel frequency in a multiple output broadcast monitoring system using a single set top box according to FIG. 5.

Hereinafter, in order to simplify the description of the present invention, a detailed description of a general known function and configuration of the set-top box 200 which is determined to unnecessarily obscure the subject matter of the present invention will be omitted, and the present invention as described above. In the description of the same configuration and function as the exemplary embodiment, unnecessary repetitive description will be omitted.

In the multiple output broadcast monitoring system using a single set top box according to another embodiment of the present invention, as shown in FIG. 5, a set top having a first broadcast reception processing module 210 and a second broadcast reception processing module 220 is provided. The box 200, the remote control receiver 240, and the guest network connection image matching unit 250 including the fourth filter 252, the screen configuration unit 253, and the formatter 254 are provided.

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. As described above, the broadcast signal receiver 211, the MPEG decoding processor 212, and the A / V broadcast signal output unit 213 are configured.

The second broadcast receiving processing module 220 selects a channel of a broadcast signal received from an external transmission medium in response to receiving a remote control signal, and then selects an A / V broadcast signal (hereinafter, 'A / V remote) of the selected channel. Broadcast signal &quot;) at a predetermined broadcast frequency, and as shown in FIG. 3, a broadcast signal receiver 221, an MPEG decoding processor 222, a broadcast signal modulator 223, and an amplifier. 224, a remote control signal extracting unit 225, and a second broadcast receiving processing module control unit 226.

The broadcast signal receiving unit 221 receives a broadcast signal from an external transmission medium and outputs it to the MPEG decoding processing unit 222. The MPEG decoding processing unit 222 decodes the received broadcast signal and processes the D / A conversion. It plays a role.

In addition, the broadcast signal modulator 223 receives a broadcast signal from the MPEG decoding processor 222 and modulates the broadcast signal to a predetermined broadcast frequency and then outputs it to a specific network 10.

The A / V remote broadcast signal output from the broadcast signal modulator 223 in the second broadcast receiving processing module 220 may be set and output as a specific broadcast channel frequency, and also an intermediate frequency avoiding the broadcast channel frequency. May be set and output.

In this case, when the A / V remote broadcasting signal is set to an intermediate frequency and output, the guest network connection image matching unit 250 further includes a modulator 255 for remodulating and outputting the intermediate frequency signal to a specific broadcasting channel frequency. It is configured and shown in Figure 8 as an example.

The remote control signal extraction unit 225 extracts a remote control signal provided from the network 10 and outputs the remote control signal to the second broadcast reception processing module 226.

The second broadcast receiving processing module controller 226 sets a broadcast channel of the broadcast signal receiving unit 221 according to the remote control signal received from the remote control signal extracting unit 225.

Here, it is preferable that the second broadcast receiving processing module control unit 226 performs processing functions such as system setting, menu setting, PVR control, and EPG control according to the contents of the remote control signal.

On the other hand, in order to compensate for the loss of the A / V remote broadcast signal according to the line distance, an amplifier 224 may be provided at the end of the broadcast signal modulator 223.

Here, the first broadcast receiving processing module 210 and the second broadcast receiving processing module 220 may be implemented as one chipset, and may be implemented as a separate separate chipset according to a selection.

The first broadcast filter 231 receives the set-top box control signal through the specific network 10 and filters the set-top box control signal to the second broadcast reception processing module 220 to provide a remote control signal to the second broadcast reception processing module 220. And a host network connection unit 230 having a second filter 232 for filtering and passing the A / V remote broadcasting signal through the second broadcast receiving processing module 220 to the network 10. You may.

In addition, the remote control receiver 240 serves to detect and output the set-top box control signal transmitted from the wireless remote controller 40.

The guest network connection image matching unit 250 filters the A / V remote broadcasting signal provided from the network 10 and passes the fourth filter 252 and the A / V remote provided through the fourth filter 252. A screen configuration unit 253 for synchronizing a broadcast signal and configuring and outputting a screen according to a broadcast standard such as NTSC, and an A / V broadcast signal configured according to a broadcast standard such as NTSC from the screen configuration unit 253 and receiving a monitor. And a formatter 254 for formatting and outputting to be compatible with 20.

In addition, the guest network connection image matching unit 250 may further include a third filter 251 for filtering the set-top box control signal from the remote control receiver 240 and passing it through the network 10.

At this time, the first filter 231 and the third filter 251 is a low pass filter (LPF) covering the remote control control signal frequency band, the second filter 232 and the fourth filter 252 is VHF / UHF frequency band This is a high pass filter (HPF) that covers.

In addition, the set top box 200 may be configured as a single set including a host network connection unit 230 having a first filter 231 and a second filter 232.

The guest network connection image matching unit 250 including the fourth filter 252, the screen configuration unit 253, and the formatter 254 may be configured as a single set including the remote control receiver 240.

The network 10 is a pre-installed TV coaxial cable or a separately installed network cable, and is connected to a plurality of RF terminals 11 to form a network network between remote sites.

As the TV receiver 30 receives the A / V broadcast signal from the first broadcast receiving processing module 210, the TV receiver 30 displays the broadcast of the corresponding program to the user, and the monitor 20 displays the second broadcast receiving processing module 220. As the A / V remote broadcasting signal is provided from the user, the broadcasting of the corresponding program is displayed to the user.

Next, an operation process of a multiple output broadcast monitoring system using a single set top box according to another embodiment of the present invention having the above configuration will be described with reference to FIGS. 5 to 8.

First, when the user performs a remote control through the wireless remote control 40, the remote control receiver 240 detects the set-top box control signal transmitted from the wireless remote control 40 to output to the network (10).

Subsequently, the set-top box control signal provided to the network 10 is provided to the second broadcast receiving processing module 220, where the second broadcast receiving processing module 220 is received from an external transmission medium according to the received remote control signal. The A / V remote broadcasting signal is modulated and then output to the network 10.

Then, the fourth filter 252 of the guest network connection image matching unit 250 receives the A / V remote broadcasting signal and filters the same.

Subsequently, the screen configuration unit 253 tunes the A / V remote broadcasting signal provided through the fourth filter 252 and configures and outputs the screen in accordance with broadcasting standards such as NTSC, PAL, and SECAM.

Then, the formatter 254 receives the A / V broadcast signal configured in accordance with the broadcast standard such as NTSC from the screen configuration unit 253 and formats it to be compatible with the monitor 20 and outputs it to the remote monitor 20. .

The guest network connection image matching unit 250 further includes an FSK modulation unit (not shown) that modulates and outputs FSK (Frequency Shift Keying) when the set-top box control signal is received from the remote control receiver 240. The broadcast receiving processing module 220 or the host network connection unit 230 may further include an FSK demodulator (not shown) capable of FSK demodulating and outputting the received FSK modulated remote control signal.

The user may perform a remote control function such as turning on / off the monitor 20 or changing a TV channel through the wireless remote controller 40.

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 monitoring system using a single set-top box according to the present invention, a plurality of monitors (LCDs) each installed at one set-top box and at various places in the home through a network already installed in a home or a specific place are provided. By connecting the filter technology, IR data of the remote control and A / V remote broadcasting signal can coexist in the network (RF cable) so that the user can use it in other remote places where the set-top box is not installed. By enabling the remote control of the set-top box, the user can conveniently watch the desired broadcast through the monitor (LCD) in each remote location where the set-top box is not installed.

In addition, since there is no need for a separate line construction and expensive RF (UHF) remote control transceiver purchase, the cost is reduced, and the installation construction is simplified.

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 which filters the signal when it receives the signal and passes it through the network; At least one remote control 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 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; and the fourth filter. A screen configuration unit for synchronizing the A / V remote broadcasting signal provided through the display and configuring and outputting the screen according to a specific broadcasting standard, and receiving and monitoring the A / V broadcasting signal configured according to the specific broadcasting standard from the screen configuration unit. Multi-output broadcasting monitoring system using a single set-top box comprising a; one or more guest network connection image matching unit having a formatter for formatting and outputting to be compatible with. 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 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 inputted from the remote control signal extracting unit. The method of claim 2, The second broadcast receiving processing module, the multiple output broadcast monitoring system using a single set-top box further comprises an amplifier for compensating for the loss of the A / V remote broadcast signal according to the line distance. The method of claim 3, wherein 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. Multi-output broadcast monitoring 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 the remote control control signal frequency band, and the second filter and the fourth filter is a high pass filter (HPF) covering the VHF / UHF frequency band. Multiple output broadcast monitoring system using a single set top box. The method of claim 5, The set top box is a multiple output broadcast monitoring system using a single set top box, characterized in that consisting of a single set including a host network connection having a first filter and a second filter. The method of claim 5, The guest network connection image matching unit including the third filter, the fourth filter, the screen configuration unit, and the formatter is configured as a single set including the remote control 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 monitoring 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 image matching unit is the intermediate frequency signal. The multiple output broadcast monitoring system using a single set-top box, characterized in that it further comprises a modulator for remodulated output to a specific broadcast channel frequency. The method according to any one of claims 2 to 4, The guest network connection image matching unit further includes an FSK modulation unit for modulating and outputting FSK (Frequency Shift Keying) when the set top box control signal is received from the remote control receiver, and the host network connection unit provides the FSK modulated remote control signal. Multi-output broadcasting monitoring system using a single set-top box, characterized in that it further comprises an FSK demodulator for receiving and outputting the FSK demodulation. The method of claim 5, The network is a multiple output broadcast monitoring system using a single set-top box, characterized in that the pre-installed 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 receiver for detecting a set top box control signal transmitted from a wireless remote controller and outputting the detected signal to the network; And A fourth filter for filtering and passing the A / V remote broadcasting signal provided from the network, and a screen for synchronizing the A / V remote broadcasting signal provided through the fourth filter and configuring and outputting a screen according to a specific broadcasting standard. At least one guest network-connected video matching unit having a component and a formatter configured to receive an A / V broadcast signal configured according to the specific broadcasting standard from the screen component and to be formatted to be compatible with a monitor; Multiple output broadcast monitoring system using a single set-top box configured to include. The method of claim 12, The fourth filter is a multiple output broadcast monitoring system using a single set-top box, characterized in that the high pass filter (HPF) covering the VHF / UHF frequency band. The method of claim 12, The guest network connection video matching unit further includes a third filter for filtering the set-top box control signal from the remote control receiver and filtering the set-top box control signal to pass through the network to 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 monitoring 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 monitoring system. The method of claim 16, The second filter and the fourth filter are a high pass filter (HPF) covering the VHF / UHF frequency band, the third filter is a low pass filter (LPF) covering the remote control control signal frequency band Multi-output broadcast monitoring system using the. The method of claim 16, The host network connection unit further comprises 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. Multi-output broadcast monitoring system. The method of claim 18, The first filter and the third filter are a low pass filter (LPF) covering the remote control control signal frequency band, and the second filter and the fourth filter is a high pass filter (HPF) covering the VHF / UHF frequency band. Multiple output broadcast monitoring 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 extracting unit 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 inputted from the remote control signal extracting unit. The method of claim 20, The second broadcast receiving processing module, the multiple output broadcast monitoring system using a single set-top box further comprises an amplifier for compensating for the loss of the A / V remote broadcast 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. Multi-output broadcast monitoring 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 monitoring 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 image matching unit is the intermediate frequency signal. Multi-output broadcasting monitoring system using a single set-top box, characterized in that it further comprises a modulator for remodulated output to a specific broadcast channel frequency. The method of claim 21, The guest network connection image matching unit further includes an FSK modulation unit for modulating and outputting FSK (Frequency Shift Keying) when the set-top box control signal is received from the remote control receiver. And a FSK demodulator for demodulating and outputting the FSK when the remote control signal is provided. The method of claim 21, The network is a multiple output broadcast monitoring system using a single set-top box, characterized in that the pre-installed TV coaxial cable or a separately installed network cable.

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