KR100745364B1 - Broadcast channel multi-monitoring system using single set-top box - Google Patents

Abstract

The present invention connects one set-top box and a TV receiver 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 the IR data of the remote control and the TV in the RF line. By allowing RF A / V signals to coexist, users can watch TV independently from each other through one set-top box, while watching in other places where no set-top box is installed. The present invention relates to a broadcasting channel multi-monitoring system using a single set-top box that enables monitoring of a broadcast through a TV receiver to which a set-top box is connected. According to the present invention, one set-top box and multiple TV receivers are connected to each other, Separate line construction and costly RF (UHF) remote control for set-top box remote control No need to buy a machine, there is an effect that parents can monitor and block the content of children's TV viewing.

Digital Broadcast Receiver, Set Top Box, TV Receiver, Filter Technology, LPF, HPF, RF Modulator, Coaxial Cable, Picture In Picture, CCIR 601/656

Description

Broadcast channel multi-monitoring system using single set-top box}

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

FIG. 2 is a functional block diagram illustrating an internal configuration of a master broadcast reception processing module and a slave broadcast reception processing module in a broadcast channel multi monitoring system using a single set top box according to FIG. 1;

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 broadcast channel multi-monitoring system using a single set top box according to an embodiment of the present invention;

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

5 is a functional block diagram showing the configuration of a broadcast channel multi-monitoring system using a single set-top box according to a second embodiment of the present invention.

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

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

111: broadcast signal receiving unit 112: master broadcast receiving processing module control unit

113: master A / V matrix section 115: RCA A / V output section

116: A / V Euro Scan Jack 117: Broadcast signal modulator

118: master wireless remote control

120: slave broadcast receiving processing module 121: broadcast signal receiving unit

122: slave broadcast receiving processing module control unit

123: slave A / V matrix unit 124: broadcast signal modulator

125 amplifier 126 remote control signal extraction unit

130: host network connection unit 131: first filter

132: second filter 136: FSK demodulation unit

140: master TV receiver 141: master wireless remote control

150: remote control signal receiver

160: guest network connection unit 161: third filter

162: fourth filter 165: modulator

166: FSK modulator

170: slave TV receiver 180: slave wireless remote control

190: network

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

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

231: first filter 232: second filter

240: master TV receiver 241: master wireless remote control

250: remote control signal receiver 260: guest network connection

261: third filter 262: fourth filter

270: slave TV receiver 280: slave wireless remote control

290: network

The present invention relates to a broadcasting channel multi-monitoring system using a single set-top box, and more particularly, to a set-top box and a TV receiver installed in various places in a home through a network (RF line) already installed in a home or a specific place. 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 so that the user can watch TV at each space independently through one set-top box. At the same time, the present invention relates to a broadcasting channel multi-monitoring system using a single set-top box, which allows a set-top box-connected TV receiver to monitor a broadcast being viewed 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.

In addition, conventionally, there is no dual broadcast output structure consisting of a master and a slave in one set-top box, and a single set-top box monitors and blocks the broadcast channel viewed from a remote location through remote control. The lack of functionality has resulted in inadequate means for parents to monitor and block children's TV content.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is a TV set installed in one set-top box and various places in a home through a network (RF line) already installed in a home or a specific place. Connect the receiver, but combine the filter technology so that the IR data of the remote control and the TV RF A / V signal can coexist within the RF line, allowing the user to independently control the TV at each space through a set-top box. In addition to providing a multi-monitoring system for broadcasting channels using a single set-top box that allows users to watch and watch broadcasts from other places where the set-top box is not installed through a TV receiver connected to the set-top box. have.

Broadcast channel multi-monitoring system using a single set-top box according to an embodiment of the present invention for achieving the above object, and selects the channel of the broadcast signal received from the external transmission medium in accordance with the remote control signal One or more slave broadcast receiving processing modules for modulating and outputting an A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of a selected channel at a predetermined broadcast frequency, and from an external transmission medium according to a user's input operation. A set top box including a master broadcast reception processing module for selecting a channel of the received broadcast signal to output the corresponding A / V broadcast signal and outputting the A / V broadcast signal received by the slave broadcast reception processing module;

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

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

At least one guest network including a third filter for filtering the set-top box control signal from a remote control signal receiver and filtering the set-top box control signal, and a fourth filter for filtering and passing the A / V remote broadcasting signal provided from the network It is configured to include a connection.

Broadcast channel multi-monitoring system using a single set-top box according to a second embodiment of the present invention for achieving the above object, a broadcast signal received from an external transmission medium in response to receiving a remote control signal through a specific network One or more slave broadcast receiving processing modules for selecting a channel and modulating the A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of the selected channel to a predetermined broadcast frequency and outputting it to a network; Selects a channel of the broadcast signal received from the external transmission medium and outputs the corresponding A / V broadcast signal, and outputs the A / V broadcast signal received by the slave broadcast reception processing module. Set top box provided;

At least one remote control signal receiving unit for detecting and outputting the set-top box control signal transmitted from the slave wireless remote controller; 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 broadcast channel multi 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 functional block diagram showing the configuration of a broadcast channel multi-monitoring 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.

Broadcast channel multi-monitoring system using a single set-top box according to an embodiment of the present invention, a set-top box having a master broadcast receiving processing module 110 and a slave broadcast receiving processing module 120 as shown in FIG. 100), the host network connection unit 130, the remote control signal receiving unit 150, and the guest network connection unit 160.

The master broadcast reception 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 the corresponding A / V broadcast signal. The received A / V broadcast signal may be output, which is shown in FIG. 2, which is a broadcast signal receiver 111, a master broadcast reception module controller 112, a master A / V matrix 113 and an RCA A / V output section 115 is configured.

FIG. 2 is a functional block diagram illustrating an internal configuration of a master broadcast reception processing module and a slave broadcast reception processing module in a broadcast channel multi monitoring system using a single set top box according to FIG. 1.

The broadcast signal receiving unit 111 receives a broadcast signal from an external transmission medium and converts the broadcast signal into a digital broadcast signal and outputs it to the master broadcast receiving processing module control unit 112.

The master broadcast receiving processing module control unit 112 receives a digital broadcast signal from the broadcast signal receiving unit 111, decodes the D / A conversion process after decoding, and receives a control signal from the master wireless remote controller 141 to provide a broadcast signal. It serves to set the broadcast channel of the receiver 111. In addition, the master broadcast receiving processing module control unit 112 receives the video data from the slave broadcast receiving processing module 120, merges the video data and the broadcast signal provided from the broadcast signal receiving unit 111, and the video data is displayed on the entire screen. A / V broadcast signal (hereinafter, referred to as a 'first A / V broadcast signal') configured to be displayed on the partial screen is generated, and the first A / V broadcast signal is output to the master A / V matrix 113. It may be. That is, the first A / V broadcast signal is an A / V broadcast signal processed to display image data in the form of a picture in picture (PIP).

In addition, the master broadcast receiving processing module control unit 112 has a function of blocking the external output of the broadcast signal of the slave broadcast receiving processing module 120.

The master A / V matrix unit 113 receives the first A / V broadcast signal from the master broadcast reception processing module control unit 112 and the A / V broadcast signal from the slave broadcast receiving processing module control unit 122 (hereinafter, ' Second A / V broadcast signal '). Thereafter, according to a control command of the master broadcast reception processing module control unit 112, one of the first A / V broadcast signal and the second A / V broadcast signal is selected and output to the RCA A / V output unit 115. It plays a role. In this case, in addition to the RCA A / V output unit 116, an A / V Euro Scan Jack 116 and a broadcast signal modulator 117 may be used as an output terminal of the A / V broadcast signal.

 The RCA A / V output unit 115 receives an A / V broadcast signal from the master A / V matrix unit 113, converts the A / V broadcast signal into an RCA format, and outputs the converted ACA signal to the master TV receiver 140.

The slave broadcast receiving processing module 120 selects a channel of a broadcast signal received from an external transmission medium as a remote control signal is provided, and selects an A / V broadcast signal (hereinafter, 'A / V remote broadcast signal') of the selected channel. Modulating and outputting the signal to a predetermined broadcast frequency, which is represented by a broadcast signal receiver 121, a slave broadcast receiving processing module controller 122, a slave A / V matrix unit 123, and the like. The broadcast signal modulator 124, the amplifier 125, and the remote control signal extractor 126.

The broadcast signal receiver 121 receives a broadcast signal from an external transmission medium, converts the broadcast signal into a digital broadcast signal, and outputs the signal to the slave broadcast reception processing module controller 122.

The slave broadcast receiving processing module control unit 122 receives the digital broadcast signal from the broadcast signal receiving unit 121, decodes the D / A conversion process after decoding, and broadcasts the broadcast signal receiving unit 121 in response to receiving the remote control signal. It is responsible for setting up channels.

In addition, when the slave broadcast receiving processing module control unit 122 receives a control command from the master broadcast receiving processing module control unit 112, in order to provide PIP video data according to the control command, the slave broadcast receiving processing module control unit 122 extracts a video signal from the decoded broadcast signal and then masters it. It serves to output to the broadcast receiving processing module control unit 112.
At this time, the video signal output to the master broadcast receiving processing module control unit 112 is characterized in that it is converted in accordance with the standard of CCIR 601/656. Here, CCIR 601 (Comite Consulatif International de Radio-Communication 601) is an international standard used to digitize component color TV images common to 525 and 625 line systems, and handles both RGB or YCbCr, 13.5MHz band, 4: 2. Defined as: 2 sampling, 720 luminance samples per effective line, 8 or 10 bit digitization. CCIR 656 also refers to the interface specification for digital component video signals in 525 and 625 line television systems.
In addition, a UART communication line is further provided between the slave broadcast receiving processing module control unit 122 and the master broadcast receiving processing module control unit 112 to transmit a control command, and an I ² C line may be used instead of the UART communication line.

In addition, the slave broadcast receiving processing module controller 122 may output the decoded broadcast signal to the master A / V matrix unit 113 to provide video and audio data provided on a full screen. At this time, after receiving the decoded broadcast signal from the slave broadcast receiving module control unit 122 and storing it in a buffer, the broadcast signal stored in the buffer is provided to the broadcast signal modulator 124 and the master A / V matrix unit 113. In order to do this, a slave A / V matrix unit 123 may be added between the slave broadcast receiving processing module controller 122 and the broadcast signal modulator 124.

In addition, the slave broadcast receiving processing module controller 122 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.

The broadcast signal modulator 124 receives a broadcast signal from the slave broadcast receiving processing module controller 122 and modulates the broadcast signal to a predetermined broadcast frequency and then outputs it to the second filter 132.

 The remote control signal extractor 126 extracts a remote control signal provided from the first filter 131 and outputs the remote control signal to the slave broadcast reception processing module controller 122.

In this case, in order to compensate for the loss of the A / V remote broadcasting signal according to the line distance, an amplifier 125 may be installed at the end of the broadcasting signal modulator 124.

Here, the master broadcast receiving processing module 110 and the slave broadcast receiving processing module 120 may be implemented as one chipset, or may be implemented as a separate chipset.

The host network connection unit 130 receives the set-top box control signal through a specific network 190 and filters the set-top box control signal to provide a remote control signal to the slave broadcast receiving processing module 120 and a slave broadcast. When the A / V remote broadcasting signal is received through the reception processing module, a second filter 132 is filtered and passed through to the network 190.

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

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

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

The set top box 100 may be configured as a single set including the host network connection unit 130 including the first filter 131 and the second filter 132. The guest network connection unit 160 having the four filters 162 may be configured as a single set including the remote control signal receiving unit 150.

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 broadcast channel multi-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 and 2, but the host network of the set-top box 100 The connection unit 130 is installed in the living room, and the guest network connection unit 160 is installed in another place (home room, study room, etc.), and the host network connection unit 130 and the guest network connection unit 140 are each connected through a coaxial cable. It is assumed that it is connected to the RF terminal installed on the wall.

First, a process of watching a broadcast to a slave TV receiver 170 using a slave wireless remote controller 180 by a user who is not provided with the set-top box 100 is described below.

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

Then, the first filter 131 of the host network connection unit 130 receives the set-top box control signal sent from the guest network connection unit 160 from the network 190 and filters it and outputs it to the slave broadcast reception processing module 120. The slave 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 slave broadcast reception 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 filter 132 of the host network connection unit 130.

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

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

Secondly, a process of monitoring and monitoring the content of a broadcast displayed by the slave TV receiver 170 installed at a place where the set-top box 100 is installed is as follows.

First, when a user transmits a control signal through the master wireless remote controller 141, the control signal receiver 114 in the master broadcast receiving processing module 110 detects the control signal.

Then, when the control signal receiving unit 114 provides the control signal to the master broadcast receiving processing module control unit 112, the master broadcast receiving processing module control unit 112 according to the command of the control signal slave broadcast receiving processing module 120 Determines whether to display the broadcast signal output from the outside in full screen or in the form of PIP.

If the command of the control signal is displayed on the full screen, the master broadcast reception processing module control unit 112 transmits a control command to the master A / V matrix unit 113 to transmit the control command from the master broadcast reception processing module control unit 112. Instead of the first A / V broadcast signal provided, the second A / V broadcast signal provided from the slave broadcast reception processing module 120 is selected and outputted to the RCA A / V output unit. At this time, the control command transmission between the master broadcast reception processing module control unit 112 and the master A / V matrix unit 113 is transmitted along the I ² C line. The second A / V broadcast signal is a broadcast signal output from the slave broadcast receiving processing module controller 122 to the outside and includes both video and audio signals, and is buffered through a slave A / V matrix unit 123. The process is provided to the master A / V matrix unit 113.

Meanwhile, if the command of the control signal is to display the broadcast signal generated by the slave broadcast reception processing module 120 in the PIP, the master broadcast reception processing module control unit 112 controls the slave broadcast reception processing module control unit 122. It receives the image data from the slave broadcast receiving processing module control unit 122 by transmitting the. Thereafter, the video data and the broadcast signal received from the broadcast signal receiver 111 are merged to generate a first A / V broadcast signal in which the video data is displayed in the form of PIP.
Then, the user outputs the first A / V broadcast signal to the master A / V matrix unit 113 and issues a control command to output the first A / V broadcast signal to the RCA A / V output unit 116. The master TV receiver 140 may monitor the image displayed on the slave TV receiver 170 as a PIP screen.
At this time, the transfer of the control command between the master broadcast receiving processing module control unit 112 and the slave broadcast receiving processing module control unit 122 proceeds along the UART communication line installed between the two modules, and instead of the UART communication line, I ² C, etc. May be used. In addition, the image data provided from the slave broadcast receiving processing module controller 122 is provided according to the standard of CCIR 601/656.

3A illustrates a broadcasting channel frequency used as a carrier frequency in order to transmit a broadcast signal through a network in a broadcasting channel multi-monitoring 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 remote broadcast signal from the slave broadcast reception processing module 120 to the network 190, the broadcast signal modulator 124 outputs the A / V remote broadcast signal for a specific broadcast. Modulate at the channel frequency and output. A process of using a specific broadcast channel frequency such as FIG. 3A as a carrier frequency is shown in FIG. 3B.

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

Referring to the case illustrated in FIG. 3B, the broadcast signal modulator 124 modulates the A / V remote broadcast signal to 474 MHz corresponding to the channel 21 and then outputs it to the second filter 132. The A / V telecast signal modulated at 474 MHz is then transmitted to the fourth filter 162 via the network 190. At this time, if the fourth filter 162 is configured to filter and pass a signal corresponding to 474 MHz among the signals input from the network 190, the broadcast signal modulator 124 modulates the output to 474 MHz for channel 21. A / V remote broadcasting signal is passed. Accordingly, the slave TV receiver 170 can display the A / V broadcast signal modulated by the broadcast signal modulator 124.

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 broadcast channel multi monitoring system using a single set top box according to an embodiment of the present invention.

Referring to the case illustrated in FIG. 3C, the broadcast signal modulator 124 modulates the A / V telecast signal to 478 MHz corresponding to the intermediate frequency of channels 21 and 22 shown in FIG. 3A, and then the second filter. Output to (132). The A / V telecast signal modulated at 478 MHz is then transmitted to the fourth filter 162 via the network 190. At this time, if the fourth filter 162 is configured to filter and pass a signal corresponding to 478 MHz among the signals input from the network 190, the broadcast signal modulator 124 outputs the modulation at 478 MHz for channel 21. A / V remote broadcasting signal is passed.

At this time, since the slave TV receiver 170 is manufactured for the existing broadcasting channel frequency, it should be modulated with a signal corresponding to channel 21. Thus, by placing the modulator 165 between the fourth filter 162 and the second TV receiver 170, the modulator 165 is filtered by the fourth filter 162 and passed through a 478 MHz A / V remote. The signal is remodulated to 474 MHz corresponding to channel 21. Accordingly, the slave TV receiver 170 can display the A / V broadcast signal modulated by the broadcast signal modulator 124.

4 is a diagram illustrating a process of transmitting a set-top box control signal using FSK modulation in a broadcasting channel multi-monitoring 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 modulation when the set top box control signal is received from the remote control signal receiver 150. That is, the apparatus further includes an FSK modulator 166 that performs FSK modulation to pass the FSK modulated set-top box control signal to the network 190.

The host network connection unit 130 is then provided with the FSK modulated remote control signal. Next, the FSK demodulation unit 136 performs FSK demodulation to restore the original remote control signal, and then outputs the remote control signal to the remote control signal extraction unit 126 of the slave broadcast reception processing module 120 to transmit the remote control signal. do.

5 is a functional block diagram showing the configuration of a broadcast channel multi-monitoring system using a single set-top box according to a second embodiment of the present invention.

While the embodiment shown in FIG. 1 includes all of the first filter 131 to the fourth filter 162, the second embodiment shown in FIG. 5 has the remaining filters except for the fourth filter 262. Characterized in that may optionally be included in the component.

The minimum configuration of the broadcast channel multi-monitoring system using a single set top box according to the second embodiment of the present invention shown in FIG. 5 includes a master broadcast reception processing module 210 and a slave broadcast reception processing module 220. The set top box 200, the remote control signal receiving unit 250 and the guest network connection unit 260 is composed of.

The master 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 the corresponding A / V broadcast signal. The received A / V broadcast signal may be output. The broadcast signal receiver includes a broadcast signal receiver, a master broadcast receiver module control unit, a master A / V matrix unit, and an RCA A / V output unit.

The broadcast signal receiving unit receives a broadcast signal from an external transmission medium and converts the broadcast signal into a digital broadcast signal and outputs it to the master broadcast receiving processing module controller.

The master broadcast receiving processing module control unit receives the digital broadcast signal from the broadcast signal receiving unit, decodes the D / A conversion process, and sets the broadcast channel of the broadcast signal receiving unit according to the control signal received from the master wireless remote controller 241. It plays a role. In addition, the master broadcast receiving processing module control unit receives the video data from the slave broadcast receiving processing module 220, merges the video data and the broadcast signal provided from the broadcast signal receiving unit so that the video data is displayed on a partial screen of the full screen The A / V broadcast signal (hereinafter, referred to as a “first A / V broadcast signal”) may be generated, and the first A / V broadcast signal may be output as a master A / V matrix. That is, the first A / V broadcast signal is an A / V broadcast signal processed to display image data in the form of PIP.

In addition, the master broadcast receiving processing module controller has a function of blocking the external output of the broadcast signal of the slave broadcast receiving processing module 220.

The master A / V matrix unit receives the first A / V broadcast signal from the master broadcast reception processing module control unit and the A / V broadcast signal from the slave broadcast receiving processing module control unit (hereinafter referred to as a 'second A / V broadcast signal'). ) Is inputted. Thereafter, one of the first A / V broadcast signal and the second A / V broadcast signal is selected and output to the RCA A / V output unit according to a control command of the master broadcast reception processing module controller. In this case, in addition to the RCA A / V output unit, an A / V channel scan jack and a broadcast signal modulator may be used as an output terminal of the A / V broadcast signal.

 The RCA A / V output unit receives an A / V broadcast signal from the master A / V matrix unit and converts the A / V broadcast signal into an RCA format and outputs it to the master TV receiver 240.

In addition, the slave 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, and A / V broadcast signal of the selected channel (hereinafter, ' A / V remote broadcasting signal) is modulated to a predetermined broadcast frequency and output to a network.The broadcast signal receiver, slave broadcast receiving module controller, slave A / V matrix, broadcast signal modulator, and amplifier And a remote control signal extraction unit.

The broadcast signal receiver receives a broadcast signal from an external transmission medium and converts the broadcast signal into a digital broadcast signal and outputs it to the slave broadcast receiving processing module controller.

The slave broadcast receiving processing module control unit receives the digital broadcast signal from the broadcast signal receiving unit, decodes the D / A conversion process after decoding, and sets a broadcast channel of the broadcast signal receiving unit as the remote control signal is provided.

In addition, when the slave broadcast receiving processing module control unit receives a control command from the master broadcast receiving processing module control unit, to provide PIP video data according to the control command, the slave broadcast receiving processing module control unit extracts the video signal from the decoded broadcast signal to the master broadcast receiving processing module control unit. It plays a role of outputting. At this time, the video signal output to the master broadcast receiving processing module control unit is characterized in that it is converted in accordance with the standard of CCIR 601/656.
The CCIR 601 is an international standard for digitizing component color TV images common to 525 and 625 line systems. It handles both RGB or YCbCr, and has a 13.5 MHz band, 4: 2: 2 sampling, and 720 luminance samples per effective line. , 8 or 10 bit digitization. CCIR 656 also refers to the interface specification for digital component video signals in 525 and 625 line television systems.
In addition, a UART communication line is further provided between the slave broadcast receiving processing module control unit and the master broadcast receiving processing module control unit for transmitting a control command, and an I ² C line may be used instead of the UART communication line.

In addition, the slave broadcast receiving processing module controller may output the decoded broadcast signal to the master A / V matrix unit in order to provide video and audio data provided on a full screen. In this case, after receiving the decoded broadcast signal from the slave broadcast receiving processing module control unit and storing it in the buffer, the slave broadcast receiving processing module control unit and the slave to receive the broadcast signal stored in the buffer to the broadcast signal modulator and the master A / V matrix unit; A slave A / V matrix unit may be added between the broadcast signal modulators.

In addition, the slave broadcast receiving processing module controller has a processing function of system setting, menu setting, PVR control, and EPG control according to the remote control signal.

The broadcast signal modulator receives a broadcast signal from a slave broadcast receiving processing module and modulates the broadcast signal to a predetermined broadcast frequency and then outputs it to the network 290 or the second filter 232.

 The remote control signal extracting unit extracts a remote control signal provided from the network 290 or the first filter 231 and outputs the remote control signal to the slave broadcast receiving processing module control unit.

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 master broadcast receiving processing module 210 and the slave broadcast receiving processing module 220 may be implemented as one chipset, or may be implemented as a separate separate chipset.

The remote control signal receiver 250 detects the set-top box control signal transmitted from the slave 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. At this time, the fourth filter 262 is a high pass filter (HPF) covering the VHF / UHF frequency band.

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

In this case, the guest network connection unit 260 may further include a third filter 261 for filtering the set-top box control signal from the remote control signal receiving unit 250 and passing the filtered signal to the network 290. 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.

In addition, when the A / V remote broadcasting signal is received through the slave broadcast receiving processing module 220, the host network connection unit 230 having a second filter 232 for filtering and passing it to the network 290 is additionally installed. Other configurations are the same as the embodiment shown in FIG. At this time, the third filter 261 is a low pass filter (LPF) covering the remote control control signal frequency band, the second filter 232 and the fourth filter 262 is a high pass filter (HPF) covering the VHF / UHF frequency band )to be.

In addition, the host network connection unit 230 may further include a first filter 231 for filtering the set top box control signal through the network 290 and providing the remote control signal to the slave broadcast receiving processing module 220. Other configurations are the same as the embodiment shown in FIG. In this case, the first filter 231 and the third filter 261 are a low pass filter (LPF) covering the remote control control signal frequency band, and the second filter 232 and the fourth filter 262 are VHF / UHF frequency band. It is a high pass filter (HPF) that covers.

In the broadcasting channel multi-monitoring system using a single set-top box according to the second embodiment of the present invention, the A / V remote broadcasting signal output from the broadcasting signal modulator in the slave broadcasting receiving processing module 220 is a specific broadcasting channel frequency. It can be set to.
In addition, the A / V remote broadcast signal output from the broadcast signal modulator in the slave broadcast receiving processing module 220 is set to an intermediate frequency avoiding the broadcast channel frequency, and the guest network connection unit 260 transmits the intermediate frequency signal for a specific broadcast. The apparatus may further include a modulator for remodulating and outputting the channel frequency. The operation process for this is the same as the operation process of the broadcast channel multi-monitoring system using a single set-top box according to an embodiment of the present invention shown in Figure 3 will not be repeated description.

In the broadcasting channel multi-monitoring system using a single set-top box according to the second embodiment of the present invention, the guest network connection unit 260 receives the set-top box control signal from the remote control signal receiving unit 250 and outputs it by FSK modulation. The apparatus further includes an FSK modulator, and the host network connection unit 230 may further include an FSK demodulator for outputting the FSK demodulated signal when the FSK modulated remote control signal is provided. The operation process for this is the same as the operation process of the broadcast channel multi-monitoring system using a single set-top box according to an embodiment of the present invention shown in Figure 4 will not be repeated description.

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 broadcasting channel multi-monitoring system using a single set-top box according to the present invention, a TV receiver installed in one set-top box and various places in a home through a network (RF line) already installed in a home or a specific place. 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. It has the effect of making it work.

In addition, there is no need to purchase a separate line construction and expensive RF (UHF) remote control transceiver for remote control of the set-top box at each space.

In addition, by allowing a TV receiver connected to the set-top box to monitor broadcasts that are being watched in other places where the set-top box is not installed, parents can monitor and block children's TV contents.

Claims (38)

delete As a remote control signal is provided, a channel of a broadcast signal received from an external transmission medium is selected, and an A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of the selected channel is set to a predetermined broadcast frequency. At least one slave broadcast receiving processing module for modulating and outputting a channel of a broadcast signal received from an external transmission medium according to a user's input operation, and outputting the corresponding A / V broadcast signal, and A received by the slave broadcast receiving processing module. A set-top box having a master broadcast receiving processing module capable of outputting a / V broadcast signal; A first filter for filtering the set-top box control signal through a specific network and providing the remote control signal to the slave broadcast reception processing module; and receiving the A / V remote broadcast signal through the slave broadcast reception processing module. At least one host network connection unit having a second filter that filters the input and passes it through the network; At least one remote control signal receiver for detecting and outputting a set-top box control signal transmitted from a slave 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 connections; It is configured to include, The master broadcast receiving processing module of the set top box, A broadcast signal receiver for receiving a broadcast signal from an external transmission medium and outputting a digital broadcast signal; A master broadcast receiving processing module controller which receives a digital broadcast signal from the broadcast signal receiving unit and decodes it after the decoding process, and sets a broadcast channel of the broadcast signal receiving unit according to a control signal received from a master wireless remote controller; The A / V broadcast signal (hereinafter referred to as 'first A / V broadcast signal') is received from the master broadcast reception processing module controller, and the A / V broadcast signal (hereinafter referred to as 'second') is received from the slave broadcast reception processing module. A / V broadcast signal ”and a master A / V signal selected from the first A / V broadcast signal and the second A / V broadcast signal according to a control command of the master broadcast reception processing module controller. V matrix portion; And An RCA A / V output unit which receives an A / V broadcast signal from the master A / V matrix unit and converts the A / V broadcast signal into an RCA format; Broadcasting channel multi-monitoring system using a single set-top box is configured to include. The method of claim 2, The master broadcast receiving processing module control unit receives the video data from the slave broadcast receiving processing module, merges the video data and the broadcast signal provided from the broadcast signal receiving unit, and the video data is a partial screen of a full screen. Generating a first A / V broadcast signal configured to be displayed, outputting the first A / V broadcast signal to the master A / V matrix, and blocking an external output of the broadcast signal of the slave broadcast receiving processing module controller; Broadcasting channel multi-monitoring system using a single set-top box, characterized in that provided. The method of claim 3, wherein The slave broadcast receiving processing module includes: a broadcast signal receiving unit receiving a broadcast signal from an external transmission medium and outputting a digital broadcast signal; Receives a digital broadcast signal from the broadcast signal receiver and decodes it after D / A conversion, sets a broadcast channel of the broadcast signal receiver according to a remote control signal, and controls the master broadcast receiver module. A slave broadcast reception processing module control unit for extracting a video signal from the decoded broadcast signal according to a command and outputting the video signal to the master broadcast reception processing module control unit; A broadcast signal modulator which receives a broadcast signal from the slave broadcast receiving processing module controller, modulates the broadcast signal to a predetermined broadcast frequency, and outputs the broadcast signal to the second filter; And And a remote control signal extracting unit for extracting a remote control signal provided from the first filter and outputting the remote control signal to the slave broadcast receiving processing module control unit. The method of claim 4, wherein And the video signal outputted to the master broadcast receiving processing module controller is converted to conform to the standard of CCIR 601/656. The method of claim 5, And a UART communication line for transmitting a control command between the slave broadcast receiving processing module control unit and the master broadcast receiving processing module control unit. The method of claim 4, wherein The slave broadcast receiving processing module control unit outputs the decoded broadcast signal to the master A / V matrix unit. The method of claim 7, wherein The slave broadcast reception processing module receives the decoded broadcast signal from the slave broadcast reception processing module controller and stores the decoded broadcast signal in a buffer, and then stores the broadcast signal stored in the buffer to the broadcast signal modulator and the master A / V matrix unit. Broadcast channel multi-monitoring system using a single set-top box, characterized in that it further comprises a slave A / V matrix. The method of claim 8, The slave broadcast receiving processing module 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 9, The slave broadcast receiving processing module control unit, the broadcast channel multi-monitoring system using a single set-top box, characterized in that it comprises the processing of system settings, menu settings, PVR control, EPG control according to the remote control signal. The method according to any one of claims 2 to 10, 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. Broadcasting channel multi monitoring system using a single set top box. The method of claim 11, The set top box is a broadcast channel multi-monitoring system using a single set top box, characterized in that consisting of a single set including a host network connection unit having a first filter and a second filter. The method of claim 11, 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 4 to 10, The A / V remote broadcast signal output from the broadcast signal modulator in the slave broadcast receiving processing module is set to a specific broadcast channel frequency, the broadcast channel multi-monitoring system using a single set-top box. The method according to any one of claims 4 to 10, The A / V remote broadcast signal output from the broadcast signal modulator in the slave broadcast receiving processing module is set to an intermediate frequency avoiding the broadcast channel frequency, and the guest network connection unit converts the intermediate frequency signal to a specific broadcast channel frequency. Broadcast channel multi-monitoring system using a single set-top box, characterized in that it further comprises a modulator for remodulated output. The method according to any one of claims 4 to 10, The guest network connection unit may further include an FSK modulation unit configured to output an FSK modulated signal when the set top box control signal is received from the remote control signal receiver. Broadcast channel multi-monitoring system using a single set-top box, characterized in that it further comprises an output FSK demodulator. The method of claim 11, The network is a broadcast channel multi-monitoring system using a single set-top box, characterized in that the pre-installed TV coaxial cable or a separate network cable. As a remote control signal is provided through a specific network, a channel of a broadcast signal received from an external transmission medium is selected and an A / V broadcast signal (hereinafter referred to as an 'A / V remote broadcast signal') of the selected channel is selected. One or more slave broadcast receiving processing modules for modulating a predetermined broadcast frequency and outputting them to the network; and selecting a channel of a broadcast signal received from an external transmission medium according to a user's input operation to output a corresponding A / V broadcast signal. A set-top box having a master broadcast reception processing module capable of outputting an A / V broadcast signal received by a slave broadcast reception processing module; At least one remote control signal receiver for detecting a set-top box control signal transmitted from a slave wireless remote controller and outputting the control signal to the network; 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; It is configured to include, The master broadcast receiving processing module of the set top box, A broadcast signal receiver for receiving a broadcast signal from an external transmission medium and outputting a digital broadcast signal; A master broadcast receiving processing module controller which receives a digital broadcast signal from the broadcast signal receiving unit and decodes it after the decoding process, and sets a broadcast channel of the broadcast signal receiving unit according to a control signal received from a master wireless remote controller; The A / V broadcast signal (hereinafter referred to as 'first A / V broadcast signal') is received from the master broadcast reception processing module controller, and the A / V broadcast signal (hereinafter referred to as 'second') is received from the slave broadcast reception processing module. A / V broadcast signal ”and a master A / V signal selected from the first A / V broadcast signal and the second A / V broadcast signal according to a control command of the master broadcast reception processing module controller. V matrix portion; An RCA A / V output unit which receives an A / V broadcast signal from the master A / V matrix unit and converts the A / V broadcast signal into an RCA format; Broadcasting channel multi-monitoring system using a single set-top box is configured to include. The method of claim 18, The fourth filter is a broadcast channel multi-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 18, The guest network connection unit may further include a third filter for filtering the set-top box control signal from the remote control signal receiving unit and passing the filtered signal to the network. The method of claim 20, 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, the broadcast channel using a single set-top box Multi monitoring system. The method of claim 20, When the A / V remote broadcasting signal is received through the slave broadcast receiving processing module, one or more host network connection units including a second filter configured to filter and pass the same to the network are installed. Broadcast channel multi monitoring system. The method of claim 22, 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 Broadcasting channel multi monitoring system using. The method of claim 22, 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 slave broadcast receiving processing module. Channel multi monitoring system. The method of claim 24, 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. Broadcasting channel multi monitoring system using a single set top box. delete The method of claim 18, The master broadcast receiving processing module control unit receives the video data from the slave broadcast receiving processing module, merges the video data and the broadcast signal provided from the broadcast signal receiving unit, and displays the video data as a partial screen of a full screen. Generate a first A / V broadcast signal configured to output the first A / V broadcast signal to the master A / V matrix, and block an external output of the broadcast signal from the slave broadcast receiving processing module controller; Broadcasting channel multi-monitoring system using a single set-top box, characterized in that. The method according to any one of claims 18 to 25, The slave broadcast receiving processing module includes: a broadcast signal receiving unit receiving a broadcast signal from an external transmission medium and outputting a digital broadcast signal; Receives a digital broadcast signal from the broadcast signal receiver and decodes it after D / A conversion, sets a broadcast channel of the broadcast signal receiver according to a remote control signal, and controls the master broadcast receiver module. A slave broadcast receiving module control unit for extracting an image signal from the decoded broadcast signal according to a command and outputting the video signal to the master broadcast receiving module control unit; A broadcast signal modulator for receiving a broadcast signal from the slave broadcast receiving processing module and modulating the broadcast signal to a predetermined broadcast frequency and outputting the broadcast signal to the network or the second filter; And And a remote control signal extracting unit for extracting a remote control signal provided from the network or the first filter and outputting the remote control signal to the slave broadcast receiving processing module control unit. . The method of claim 28, And the video signal outputted to the master broadcast receiving processing module controller is converted to conform to the standard of CCIR 601/656. The method of claim 29, And a UART communication line for transmitting a control command between the slave broadcast receiving processing module control unit and the master broadcast receiving processing module control unit. The method of claim 28, The slave broadcast receiving processing module control unit outputs the decoded broadcast signal to the master A / V matrix unit. The method of claim 31, wherein The slave broadcast reception processing module receives the decoded broadcast signal from the slave broadcast reception processing module controller and stores the decoded broadcast signal in a buffer, and then stores the broadcast signal stored in the buffer to the broadcast signal modulator and the master A / V matrix unit. Broadcast channel multi-monitoring system using a single set-top box, characterized in that it further comprises a slave A / V matrix. 33. The method of claim 32, The slave broadcast receiving processing module 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 33, wherein The slave broadcast receiving processing module control unit, the broadcast channel multi-monitoring system using a single set-top box, characterized in that it comprises the processing of system settings, menu settings, PVR control, EPG control according to the remote control signal. The method of claim 33, wherein The A / V remote broadcast signal output from the broadcast signal modulator in the slave broadcast receiving processing module is set to a specific broadcast channel frequency, the broadcast channel multi-monitoring system using a single set-top box. The method of claim 33, wherein The A / V remote broadcast signal output from the broadcast signal modulator in the slave broadcast receiving processing module is set to an intermediate frequency avoiding a broadcast channel frequency, and the guest network connection unit converts the intermediate frequency signal to a specific broadcast channel frequency. Broadcast channel multi-monitoring system using a single set-top box, characterized in that it further comprises a modulator for remodulated output. The method of claim 33, wherein The guest network connection unit may further include an FSK modulation unit configured to output an FSK modulated signal when the set top box control signal is received from the remote control signal receiver. Broadcast channel multi-monitoring system using a single set-top box, characterized in that it further comprises an output FSK demodulator. The method of claim 33, wherein The network is a broadcast channel multi-monitoring system using a single set-top box, characterized in that the pre-installed TV coaxial cable or a separate network cable.

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