KR100838316B1 - Semi auto Tap-off and Distributor for determination noise and Romote controller thereof - Google Patents

Abstract

The present invention relates to a semi-automatic noise removing branch, wherein the semi-automatic noise removing branch transmits a downlink broadcast signal transmitted from a cable TV station to a subscriber end, and transmits an uplink data signal input from the subscriber end to a cable modem transmission system. A splitter used in a cable TV transmission network for transmitting a signal, wherein an RF signal is input and output through a coaxial cable, an output terminal through which an RF signal is input and output through a coaxial cable, and is branched between the input terminal and the output terminal, thereby separating the input terminal. A branch circuit for branching and outputting downlink broadcast signals inputted through at least one or more downlink broadcast signals of the same level, combining at least one upstream data signal inputted through the input terminal, and receiving at least one downlink broadcast signal; One or more constant A distribution circuit for distributing and outputting a downlink broadcast signal of a level, combining at least one input data signal and outputting the at least one coupler in a hierarchical structure and branching; A plurality of incoming terminals for outputting a downlink broadcast signal output from a distribution circuit to the subscriber terminal, and outputting an uplink data signal input from the subscriber terminal to the distribution circuit, and located between the branch circuit and the distribution circuit, It is connected to a simple contact relay and an external remote control that passes an upstream data signal output from the distribution circuit when power is supplied, receives power from the external remote control, and supplies power to the simple contact relay under control of the external remote control. With remote control connector supplying Semi-automatic noise removal for a turnout according to claim a.

According to the present invention, there is an advantage that not only can reduce a lot of time to find the noise generation location, but also minimize the damage to the subscriber by minimizing the broadcast and Internet interference, and also minimize the unnecessary time and labor costs, By using the power supply without being supplied from the power source of the transmission network, there is no problem caused by lightning or surge overvoltage, and there is an advantage that the safety of the transmission network can be secured by minimizing the current of the transmission network.

Splitter, Splitter, Noise Reduction, Relay, Cable Transmission Network

Description

Semi-auto Tap-off and Distributor for determination noise and Romote controller

1 is a schematic diagram of a branch and a divider according to the prior art.

2 is a schematic diagram of a cable TV transmission network;

Figure 3 is a block diagram of a configuration for a semi-automatic noise removing branch according to an embodiment of the present invention.

Figure 4 is an external front view of a remote control according to another embodiment of the present invention.

5 is a block diagram illustrating the durability of the remote controller according to another embodiment of the present invention.

Figure 6 is a block diagram of a semi-automatic noise removing distributor according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

200: turnout 214: CMTS

216: amplifier 220: subscriber end

240: remote controller 250: splitter

300: branch circuit 301: TP branch circuit

302: simple contact relay 304: 16 MHz filter or EQ filter

306: remote control connector 308a to 308g: coupler

314a to 314d: Simple contact relay 316a to 316d: Relay ground

318a to 318h: lead terminal 400: display unit

402: lead wire connecting terminal 404: connecting cable

406: key input unit 500: control unit

502: power supply unit 504: connection interface

506: upward signal generator 601: TP branch circuit

602a, 602b: coupler 606a to 606c: simple contact relay

608a to 608c: relay ground 610a to 610c: port

The present invention relates to a semi-automatic noise canceling branch and splitter, and more particularly, to a semi-automatic noise canceling branch and splitter capable of controlling an uplink data signal using a simple contact relay and a relay ground.

Current cable TV transmission systems are attracting not only cable broadcasting but also various business media such as internet, VOD (Video On Demand), digital broadcasting, crime prevention, and disaster prevention.

This cable TV transmission system is composed of a transmission room (national company) and a plurality of distributors and branchers.

1 is a schematic diagram of a branch and a distributor according to the prior art.

As shown in FIG. 1, a branch (or divider) 100 according to the prior art is composed of an input terminal 106, an output terminal 108, a branch circuit 102, and a plurality of couplers 104a to 104g. It consists of a distribution circuit and a plurality of lead terminals 110a to 110g.

Each branch is connected to an outdoor fluorescent receiver or branch or distributor via coaxial cable.

Coaxial cable is connected to the input terminal 106 and the output terminal 108, and the input and output of the RF signal is made through the connected coaxial cable.

The branch circuit 102 branches between the input terminal 106 and the output terminal 108 to branch and output the downlink broadcast signal input through the input terminal 106, and outputs the combined upstream data signal.

In the distribution circuit, a plurality of couplers 104a to 104g for distributing downlink broadcast signals and combining and outputting upstream data signals are connected in a hierarchical structure.

The number of output terminals (ie, lead terminals) of the distribution circuits 104a to 104g having one input is determined according to the number of such layers.

That is, in the case of one layer, it has two incoming terminals, and in the case of two layers, it has four incoming terminals, and in the case of three layers, it has eight incoming terminals.

The incoming terminals 110a and 110b are connected to the subscriber end via an inlet cable to output the downlink broadcast signal output from the distribution circuit to the subscriber end, and to output the upstream data signal input from the subscriber end to the distribution circuits 102a to 104g. do.

The branching device (or splitter) according to the related art having the above-described configuration simply branches (or distributes) a downlink broadcast signal to a certain number and outputs it to the subscriber end, and outputs uplink data signals transmitted from a plurality of subscriber ends. It will only perform the function of combining and outputting.

2 is a schematic diagram of a cable TV transmission network.

Provides multiple subscribers with RF signals (hereinafter referred to as "downstream broadcast signals") such as voice, video, and data from cable TV stations, and transmits data signals transmitted by subscribers using cable modems (hereinafter, referred to as "upstream data signals"). The cable TV transmission network that transmits the cable modem transmission system (CMTS) is configured as an optical coaxial mixed tree structure as shown in FIG. 2.

In more detail, the transmission room allocates a frequency (channel) by modulating a baseband signal into a radio frequency (RF) signal.

The signal modulated by the channel modulator 212 into the channel is combined again and input to the optical transmitter through a mixer, connected by an optical cable and modulated into an RF signal by an outdoor optical receiver (ONU).

The RF signal is transmitted over a coaxial cable, the RF signal over the coaxial cable is attenuated, and an amplifier (216) is used to amplify the attenuated signal again. 250 is input to the divider 250 distributes the input signal to a plurality of branch (200, etc.) connected to the divider 250, the branch 200 is connected to the subscriber terminal ( The RF signal is distributed to 220 and transmitted, and the signal output from the subscriber end 220 is received and transmitted to the upper end.

The subscriber terminal 220 is a TV or the Internet (cable modem) is installed, the subscriber terminal 220 and the branch 200 is connected through the incoming line.

Subscribers will be able to watch cable TV or use Internet communications using a TV or cable modem.

In order to maintain such a transmission system, bidirectional communication should be performed smoothly, and in order to maintain such bidirectional communication smoothly, a cable TV system requires a lot of technology and effort.

The biggest management problem of the cable TV transmission system according to the prior art is the difficulty of managing the signal transmitted from the subscriber terminal 220, that is, the uplink signal.

That is, the subscriber transmits the data signal to the transmission room CMTS (Cable Modem Transmission System) 214 through the cable modem.

The transmission network configuration system of the cable system uses the frequency separation band, and the frequency of the downlink signal transmitted from the station (transmission room) uses the 54-870 MHz band for the cable TV, and the frequency of the uplink signal transmitted from the subscriber end is 5- The 42MHz band is used.

The biggest disadvantage of the transmission system configured in this way is that the uplink signal transmitted from the subscriber terminal 220 is transmitted along with the data signal and noise.

Since noise adversely affects the data signal, much effort is required to minimize the noise.

As shown in FIG. 2, in an outdoor optical network unit (ONU), a coaxial network has a tree structure.

Because of this tree structure, much time and effort was required to find the point where the noise occurred when noise occurred.

In order to find the point where the noise is generated, by blocking the upstream signal of a part of the transmission network, it is necessary to find the location while gradually narrowing its location, which causes a problem that a lot of time and manpower is consumed in troubleshooting.

That is, in case of noise, in order to find the noise occurrence point, first, check the outdoor optical transceiver port, and check the many lines up to the amplifier 216, the branch 200, and the subscriber line leading to the next line. There was a problem that can confirm the occurrence point.

In addition, since there is no configuration capable of controlling the upstream signal in the branching device (or divider) 100 according to the prior art having the structure as shown in Figure 1, the bottom of the branching device 100 in the confirmation process There was a problem that the noise generation point could be confirmed only by removing the part or disassembling the subscriber terminal.

In addition, the subscriber has to go through the above-described process to check the noise, the subscriber has a problem that the broadcast is stopped, the Internet can not be used.

The present invention can solve the problems of the prior art as described above, by using a simple contact relay and relay ground, it is possible to quickly and easily track the location of the noise, subscribers in the transmission system maintenance process cable TV and Internet services It is an object of the present invention to provide a cable TV splitter and splitter so that there is no obstacle in using the.

In order to achieve the above object, according to a preferred embodiment of the present invention, a downlink broadcast signal transmitted from a cable TV station is transmitted to a subscriber end, and an uplink data signal input from the subscriber end is transmitted through a cable modem transmission system. A splitter used in a cable TV transmission network for transmitting to the input terminal, RF input signal input and output through the coaxial cable; An output stage through which an RF signal is inputted and outputted through a coaxial cable; Branching between the input terminal and the output terminal, and outputs a downlink broadcast signal input through the input terminal into at least one or more downlink broadcast signal of the same level, and combines the input at least one upstream data signal through the input terminal An output branch circuit; A distribution circuit that receives a downlink signal and distributes it to at least one constant level downlink signal and outputs the output signal, and combines the at least one uplink data signal to be output and the at least one coupler is branched by being connected in a hierarchical structure. ; A plurality of lead terminals connected to the subscriber end via an inlet cable and outputting a downlink broadcast signal output from the distribution circuit to the subscriber end, and outputting an uplink data signal input from the subscriber end to the distribution circuit; A simple contact relay positioned between the branch circuit and the distribution circuit and configured to pass an upward data signal output from the distribution circuit when power is supplied; And a remote control connection terminal connected to an external remote controller and receiving power from the external remote controller and supplying power to the simple contact relay under control of the external remote controller. A semi-automatic noise canceling branch is provided.

According to another embodiment of the present invention, a downlink signal transmitted from a cable TV broadcasting station is transmitted to a splitter, and an uplink data signal input from the splitter is used in a cable TV transmission network transmitting a cable modem transmission system. A distributor, comprising: an input / output terminal for inputting and outputting an RF signal through a coaxial cable; At least one coupler for branching and outputting the downlink broadcast signal inputted through the input / output terminal into at least one downlink signal of the same level, and combining the at least one upstream data signal inputted through the input / output terminal layer A branch circuit connected to the structure and branched; A TP branch circuit located between the branch circuit and the output terminal and branched to the TP terminal; A plurality of ports connected to the branch circuit by a coaxial cable to output a downlink broadcast signal output from the branch circuit to the branch circuit, and output an upstream data signal input from the branch circuit to the branch circuit; A plurality of simple contact relays positioned between the branch circuit and the port and passing upward data signals inputted through the port when power is supplied; And a remote control connection terminal connected to an external remote controller and receiving power from the external remote controller and supplying power to the simple contact relay under control of the external remote controller. A semi-automatic noise removing distributor is provided.

In addition, according to another embodiment of the present invention, the remote control is connected to a semi-automatic noise canceling branch and distributor, comprising: a power supply unit configured to supply power to the rechargeable battery; A key input unit for outputting a key control signal according to a user's key operation; A connection cable coupled to the remote control connection terminal and supplying power to the remote control connection terminal; A semi-automatic noise eliminating branch and a remote controller are provided, including a control unit for controlling power supplied to the remote control connecting terminal according to a key control signal output from the key input unit.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the semi-automatic noise removing branch and divider and the semi-automatic noise removing branch and divider remote control.

3 is a block diagram illustrating a semi-automatic noise removing branch according to an exemplary embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the semi-automatic noise removing branch according to the present invention.

The diverter 200 transmits the downlink broadcast signal transmitted from the cable TV station to the subscriber station 220, and transmits an uplink data signal input from the subscriber station 220 to the cable modem transmission system 214.

As described above, the splitter used in the cable TV transmission network is connected to the splitter or another splitter with a coaxial cable through an input terminal 310 located at one side of the splitter to receive a downlink broadcast signal, and also has an output stage located at the other side ( Through 312), the downlink broadcast signal is output to the other branch.

In the same principle, the upstream data signal input from the subscriber terminal 220 is transmitted to the distributor through the input terminal 310 located on one side, and also transmitted from another branch input through the output terminal 312 located on the other side. The uplink data signal is also transmitted to the splitter.

The present invention provides a diverter (or splitter) that allows the cable TV transmission network manager to arbitrarily block an upstream data signal output from the diverter 200 or the subscriber end 220 connected to the diverter 200. Alternatively, the present invention is to provide a diverter (or divider) 200 capable of disassembling or distributing an uplink data signal without dismantling the connection with the subscriber terminal 220.

As shown in FIG. 3, the semi-automatic noise removing branch 200 according to the preferred embodiment of the present invention includes an input terminal 310, an output terminal 312, a branch circuit 300, and a TP branch circuit 301. ), Simple contact relay 302, couplers 308a to 308g. It may include a 16MHz filter or EQ filter 304, the remote control connection terminal 306.

The input terminal 310 is connected to a splitter or another branch with a coaxial cable, receives an RF signal (downstream signal) output from the front stage, and divides the upstream data signal and the next stage output from the branch according to the present invention. The upstream data signal output from the device is output.

The output stage 312 is connected to the other branch by a coaxial cable, and outputs an RF signal (downstream broadcast signal) input through the input terminal 310 to the next branch of the upstream data signal output from the branch of the next stage. Will be input.

The branch circuit 300 branches between the input terminal 310 and the output terminal 312, branches and outputs the downlink broadcast signal input through the input end 310 into at least one or more downlink broadcast signals of the same level, and is inputted. At least one uplink data signal is combined to be output through the input terminal 310.

More preferably, the C1 coupler may be used as the branch circuit 300 according to the present invention, but it will be apparent to those skilled in the art that various branch circuits may be used.

The TP branch circuit 301 is located between the branch circuit 300 and the output terminal 312 to branch to the TP terminal.

The distribution circuit includes at least one coupler 308a to 308g connected in a hierarchical structure.

More preferably, the couplers 308a to 308g according to the present invention form a tree structure and branch.

According to this tree structure, when the distribution circuit includes one coupler, it has two output terminals. When the distribution circuit includes three couplers, it has four output terminals, and the distribution circuit includes seven couplers. In this case, it has 8 output terminals.

In the accompanying drawings, seven couplers 308a to 308g are formed in a three-layered tree structure, and have eight output terminals. Of course, the number of terminals of the branch and the divider is not limited, such as 2 terminals, 4 terminals, 8 terminals, 16 terminals, 32 terminals.

The couplers 308a to 308g receive downlink signals output from the branch circuit 300 and distribute them to at least one downlink signal having a predetermined level, and output the combined downlink signals. Done.

The incoming terminals 318a to 318h are connected to the subscriber terminal 220 by a cable of the inlet cable to output a downlink broadcast signal output from the distribution circuit to the subscriber terminal 220 and to output an uplink data signal input from the subscriber terminal 220. Output to the distribution circuit.

These lead terminals 318a to 318h are connected one to one to the output terminal of the distribution circuit.

The simple contact relay 302 is located between the branch circuit 300 and the distribution circuit, and passes the upstream data signal output from the distribution circuit to the relay grounds 316a to 316d when power is supplied.

The relay grounds 316a to 316d are connected to the simple contact relay 302, and when power is supplied to the simple contact relay 302 and the uplink data signal is passed, the relayed ground signals 316a to 316d receive a predetermined uplink data signal. It blocks the passage of signals with frequencies.

That is, the relay grounds 316a to 316d perform a kind of band pass filter role.

The 16 MHz filter or the EQ filter 304 is located between the branch circuit and the output stage, and the 16 MHz filter is equipped with an optional 5 to 16 MHz stop band filter in an uplink frequency band of 5 to 42 MHz, and has a noise no greater than 16 MHz. The EQ filter can be used as an option to adjust the slope of the level of the downlink frequency signal.

The external remote control connection terminal 306 is connected via an external remote control and a connection cable, receives power from the external remote control, and supplies power to the simple contact relay 302 under the control of the external remote control.

Therefore, when the cable TV transmission network manager connects the remote control to the external remote control connector 306 and supplies power to the simple contact relay 302 through the external remote control connector 306, the simple contact relay 302 is a distribution circuit. The upstream data signal outputted from the device passes through the relay grounds 316a to 316d, and the relay grounds 316a to 316d block the upstream data signal.

In this case, if the noise occurs in the tap-off 200 which cuts off the upstream data signal by supplying power, the noise disappears from the cable TV transmission network by blocking the uplink data signal. You can judge.

In addition, the simple contact relay 302 and the relay ground (316a to 316d) according to the present invention is located between the branch circuit 300 and the output terminal 312, to block the upstream data signal input from the output terminal 312 It may be configured.

That is, it blocks the upstream data signal inputted from the main cable (not shown) connecting the tap-off and the tap-off or the tap-off connected to the output terminal 312 of the tap-off, thereby detecting whether noise output from the lower end connected to the tap-off is generated. It may be configured to do so.

In addition, the distribution circuit according to the present invention may further include a plurality of simple contact relays (314a to 314d) and relay ground (316a to 316d).

The simple contact relay 314a is positioned between the upper coupler 308b and the lower coupler 308d connected in a hierarchical structure, and relays downlink broadcast signals and uplink data signals input when power is supplied to the relay grounds 316a to 316d. Will pass.

The relay grounds 316a to 316d are connected to the simple contact relay 314a. When the power is supplied to the forward contact relay 314a and the input signal passes, the relay ground 316a to 316d receives the grounded signal.

At this time, the simple contact relay 314a is connected to the remote control connection terminal 306 and is supplied with power by the connected external remote control.

Therefore, when the transmission network manager supplies power to the simple contact relay 314a using an external remote controller, the upstream data signals output from the corresponding lead terminals 318a and 318b are blocked, and thus it is determined whether noise of the corresponding lead line occurs. It becomes possible.

In addition, the distribution circuit according to the present invention may further include a plurality of RF relays (not shown) and a plurality of stop filters (not shown).

That is, instead of the above-described simple contact relay and relay ground, an RF relay and a stop filter are used to determine whether noise of a lower incoming line is generated.

The RF relay is positioned between the upper coupler and the lower coupler connected in a hierarchical structure. When the power is supplied, the RF relay passes an upstream data signal output from the lower coupler to the stop filter, and the stop filter is connected to the RF relay, so that the RF relay When power is supplied to the uplink data signal, the passed uplink data signal is input to block passage of a signal having a predetermined frequency.

Since the functions of the RF relay and the stop filter are the same as described above, a detailed description thereof will be omitted.

4 is an external front view of the remote control according to another embodiment of the present invention, Figure 5 is a block diagram of the durability of the remote control according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the configuration of the semi-automatic noise removing branching and splitting remote control according to the present invention.

As shown in the accompanying drawings, the remote controller 240 according to another embodiment of the present invention may include a power supply unit 502, a key input unit 406, a connection cable 404 and the control unit 500.

The power supply unit 502 is configured as a rechargeable battery to supply power to the remote control and the semi-automatic noise removing branch 200 or the divider 250 connected to the remote control according to the present invention.

The key input unit 406 outputs a key control signal according to a user's key input, and the connection cable 404 is coupled to the remote control connection terminal 306 to supply power to the remote control connection terminal 306.

More preferably, the key input unit 406 according to the present invention may include a plurality of switches (408a, 408b, 408c, etc.) capable of supplying power in a one-to-one correspondence with each RF relay or a simple contact relay.

The control unit 500 supplies power to the remote control connection terminal 306 connected through the connection cable 404 according to the key control signal output through the key input unit 406, RF relay or simple corresponding to the user's intention Power is supplied to the contact relay to block the upstream data signal output from a specific point.

In addition, the semi-automatic noise removing branch or remote controller 240 according to the present invention may further include a lead wire connection terminal 402, a connection interface 504, an uplink signal generator 506 and the display unit 400. have.

The lead-in connection terminal 402 is connected to the lead-in connection terminal of the semi-automatic noise removing branch or the port of the semi-automatic noise removing branch according to the present invention, and inputs a signal output from the semi-automatic noise removing branch. Will receive.

The connection interface 504 interfaces data input / output through the lead wire connection terminal 402.

The uplink signal generator 506 is used to confirm that the uplink data signal is correctly opened and to adjust a reference value of the uplink data signal on the line.

The display unit 400 displays a signal input through the lead wire connection terminal 402 on the screen. In this case, the main control unit 500 analyzes the signal input through the lead wire connection terminal 402 and displays the display unit ( The display unit 400 is controlled to be displayed on 400.

Conventionally, it was necessary to remove a certain distributor, branch, or lead wire terminal, and communicate with the transmission room by using a personal communication device such as a mobile phone to receive noise removal.

In the conventional case, the upwardly squeezed noise is identified by the spectrum analyzer 210, input to the modulator through the video output of the spectrum analyzer 210, and the RF-modulated signal is transmitted downward again.

However, in the case of using the remote controller 240 according to the present invention having the above-described configuration, by displaying the signal output from the branch or the splitter through the display unit 400 of the remote controller 240, it is determined whether the noise is removed in real time You can do it.

The operation of the semi-automatic noise canceling branch according to the preferred embodiment of the present invention having the configuration as shown in FIG. 3 and the remote control for the semi-automatic noise canceling branch as shown in FIGS. 4 and 5 It will be described in detail.

When the cable TV transmission network manager connects the remote controller 240 to the remote controller connection terminal 306 of the branch switch 200 through a connection cable 404 and presses a specific key of the remote controller, the remote controller 240 is a key input unit 406. According to the control, power is supplied to the simple contact relay corresponding to the specific key.

At this time, the switch S1 408a of the remote control key input unit 406 supplies power to the simple contact relay 302, and the switch S2 408b is configured to supply power to the simple contact relay 314a.

If the remote control switch S1 (408a) is kept pressed, power is supplied to the simple contact relay 302 and is reversed.

Therefore, the upstream data signal input through the C1 coupler 300 is input to the blocking filter 304, and the upstream data signal is blocked.

After the upstream data signal is blocked, when the screen from which the noise is removed is output to the display unit 400 of the remote controller 240, the user may determine that the noise occurs in the corresponding branch and take further action.

In addition, when the remote control switch S1 (408a) is turned off, the power supply is stopped and the simple contact relay 302 returns to its original state and outputs an upward data signal.

If it is determined that noise has occurred in the corresponding branch, and the user wants to search the noise occurrence point in more detail by controlling the lead terminal, when the remote control switch S2 408b is pressed, the power is supplied to the simple contact relay 314a. Supplied, the simple contact relay 314a is grounded through the relay ground 316a to block the signal output from the input terminal 1 port 318a and the port 2 318b and the input signal.

Accordingly, it is possible to determine whether noise is generated from the port 1 port 318a and the port 2 318b.

By operating the remote control switch in the same process to determine whether the noise of each incoming terminal, it is possible to search for a more accurate noise generation point.

Through this process, the user can check that noise is generated at the lead wire of the subscriber terminal 220 without dismantling the lead wire.

6 is a block diagram illustrating a semi-automatic noise removing distributor according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the semi-automatic noise removing exhaust according to the present invention.

As shown, the semi-automatic noise canceling divider according to another embodiment of the present invention, the input circuit 600, the TP branch circuit 601, a branch circuit composed of at least one coupler (602a, 602b), a plurality The ports 610a to 610c, a plurality of simple contact relays 606a to 606c, a plurality of relay ground (608a to 608c) and a remote control connection terminal 604 may be included.

The input / output terminal 600 inputs and outputs an RF signal through a coaxial cable.

At least one coupler (602a, 602b) is configured in a branched circuit, the coupler (602a, 602b) is a branched downlink broadcast signal input through the input and output terminal to at least one or more downlink broadcast signal of the same level by The output signal is combined with at least one upstream data signal to be output through the input / output terminal.

The TP branch circuit 601 is located between the branch circuit and the output terminal to branch to the TP terminal.

The ports 610a to 610c are connected to the branch switch 200 by a coaxial cable to output the downlink broadcast signal output from the branch circuit to the branch switch 200, and branch the upstream data signal input from the branch switch 200. Output to the circuit.

The simple contact relays 606a to 606c are located between the couplers 602a and 602b constituting the branch circuit and the ports 610a to 610c, and upward data input through the ports 610a to 610c when power is supplied. The signal is passed to the stop filters 608a to 608c, and the relay grounds 608a to 608c are connected to the simple contact relays 606a to 606c, so that power is supplied to the simple contact relays 606a to 606c, and the upward data is transmitted. When the signal passes, it serves to ground the received upstream data signal.

The remote control connection terminal 604 is connected to the external remote control 240, receives power from the external remote control 240, to supply power to the simple contact relays (606a to 606c) under the control of the external remote control 240. do.

Each of the above components is the same as the components and functions and operations of the semi-automatic noise canceling branch according to an embodiment of the present invention will not be described further.

In the present invention, a simple contact relay is used for each terminal, but it is obvious to those skilled in the art that a separate component such as a PIN diode may be used instead of a simple contact relay.

In addition, the branch, the divider and the remote control is connected to the power line for each terminal, that is, in the case of 8 terminals, 16 terminals or 32 terminals, too many connection pins to which the power is connected may be a difficult part in the configuration of the present invention. .

However, it is apparent that the configuration of the present invention can be implemented by a person skilled in the art also as a digital signal, and when the digital implementation, the unit price of the product will be increased, but there is a convenient advantage in configuring the product.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art will be able to make various modifications, changes and additions within the spirit and scope of the present invention. Additions should be considered to be within the scope of the following claims.

As described above, according to the semi-automatic noise canceling branch and splitter according to the present invention, not only can a lot of time be reduced in finding a noise generating position, but also minimizes damage to subscribers by minimizing broadcasting and internet obstacles. Has the effect of minimizing unnecessary time and labor costs,

In another effect, according to the present invention, by using the power supply without being supplied from the power source of the transmission network, there is no problem caused by lightning or surge overvoltage, and it is possible to minimize the current of the transmission network to secure the safety of the transmission network. ,

Another effect is that by simply contacting the relay, the ohmic value can be reduced and additional components can be used depending on the frequency characteristics.

Claims (10)

In the splitter used in the cable TV transmission network for transmitting the downlink signal transmitted from the cable TV station to the subscriber end, and the upstream data signal input from the subscriber end to the cable modem transmission system, An input terminal through which an RF signal is input / output through a coaxial cable; An output stage through which an RF signal is inputted and outputted through a coaxial cable; Branching between the input terminal and the output terminal, and outputs a downlink broadcast signal input through the input terminal into at least one or more downlink broadcast signal of the same level, and combines the input at least one upstream data signal through the input terminal An output branch circuit; A distribution circuit that receives the downlink signal and distributes the downlink signal into at least one constant level downlink signal, and outputs the at least one coupler coupled to the at least one uplink data signal in a hierarchical structure; A plurality of lead terminals connected to the subscriber end via an inlet cable and outputting a downlink broadcast signal output from the distribution circuit to the subscriber end, and outputting an uplink data signal input from the subscriber end to the distribution circuit; A simple contact relay positioned between the branch circuit and the distribution circuit and configured to pass an upward data signal output from the distribution circuit when power is supplied; And A remote control connection terminal connected to an external remote controller and receiving power from the external remote controller to supply power to the simple contact relay under control of the external remote controller; Semi-automatic noise removing branch comprising a. In the splitter used in the cable TV transmission network for transmitting the downlink signal transmitted from the cable TV station to the subscriber end, and the upstream data signal input from the subscriber end to the cable modem transmission system, An input terminal through which an RF signal is input / output through a coaxial cable; An output stage through which an RF signal is inputted and outputted through a coaxial cable; Branching between the input terminal and the output terminal, and outputs a downlink broadcast signal input through the input terminal into at least one or more downlink broadcast signal of the same level, and combines the input at least one upstream data signal through the input terminal An output branch circuit; A distribution circuit that receives the downlink signal and distributes the downlink signal into at least one constant level downlink signal, and outputs the at least one coupler coupled to the at least one uplink data signal in a hierarchical structure; A plurality of lead terminals connected to the subscriber end through an inlet cable and outputting a downlink broadcast signal output from the distribution circuit to the subscriber end, and outputting an uplink data signal input from the subscriber end to the distribution circuit; A simple contact relay positioned between the branch circuit and the output terminal and configured to pass an upward data signal input through the output terminal when power is supplied; And A remote control connection terminal connected to an external remote controller and receiving power from the external remote controller to supply power to the simple contact relay under control of the external remote controller; Semi-automatic noise removing branch characterized in that it comprises a. The method according to claim 1 or 2, And the branch circuit is a seed source (C1) coupler, and further comprising a TP branch circuit located between the branch circuit and the output terminal and branching to the TP terminal. The method according to claim 1 or 2, And a 16 MHz filter positioned between the branch circuit and the distribution circuit to remove noise of 16 MHz or less in the output uplink frequency band. The method according to claim 1 or 2, And an EQ filter positioned between the branch circuit and the distribution circuit to adjust the inclination of the level of the downlink frequency signal to be output. The method of claim 1 or 2, wherein the distribution circuit A plurality of simple contact relays positioned between an upper coupler and a lower coupler connected in a hierarchical structure and passing downstream signals and upstream data signals input when power is supplied; And And a plurality of relay grounds connected to the simple contact relay and configured to receive and pass the passed signal when the signal inputted when power is supplied to the simple contact relay is passed. The remote control terminal is a semi-automatic noise canceling branch, characterized in that for supplying power to the plurality of simple contact relay under the control of the external remote control. The method of claim 1 or 2, wherein the distribution circuit A plurality of RF relays positioned between an upper coupler and a lower coupler connected in a hierarchical structure and passing upward data signals output from the lower coupler when power is supplied; And And a plurality of relay grounds connected to the RF relay to receive and ground the passed up data signal when power is supplied to the RF relay and the up data signal passes. The remote control terminal is a semi-automatic noise canceling branch, characterized in that for supplying power to the plurality of RF relays under the control of the external remote control. In the splitter used in a cable TV transmission network for transmitting a downlink signal transmitted from a cable TV broadcasting station to a splitter, and transmits an uplink data signal input from the splitter to a cable modem transmission system, An input / output terminal to which an RF signal is input / output through a coaxial cable; At least one coupler for branching and outputting the downlink broadcast signal inputted through the input / output terminal into at least one downlink signal of the same level, and combining the at least one upstream data signal inputted through the input / output terminal layer A branch circuit connected to the structure and branched; A TP branch circuit located between the branch circuit and the output terminal and branched to the TP terminal; A plurality of ports connected to the branch circuit by a coaxial cable to output a downlink broadcast signal output from the branch circuit to the branch circuit, and output an upstream data signal input from the branch circuit to the branch circuit; A plurality of simple contact relays positioned between the branch circuit and the port and passing upward data signals inputted through the port when power is supplied; And A remote control connection terminal connected to an external remote controller and receiving power from the external remote controller to supply power to the simple contact relay under control of the external remote controller; Semi-automatic noise reduction divider comprising a. In the remote control connected to the remote control connecting terminal according to any one of claims 1, 2 or 8, A power supply unit configured to include a rechargeable battery to supply power; A key input unit for outputting a key control signal according to a user's key operation; A connection cable coupled to the remote control connection terminal and supplying power to the remote control connection terminal; And A control unit controlling power supplied to the remote control connection terminal according to a key control signal output from the key input unit; Remote control for a semi-automatic noise canceling switch and divider comprising a. The method of claim 9, The semi-automatic noise removing branch and remote control for the divider, A lead wire connection terminal connected to a lead wire connection terminal of the semi-automatic noise canceling branch and receiving a signal output from the semi-automatic noise canceling branch; A connection interface for interfacing data input / output through the lead wire connection terminal; An uplink signal generator for confirming that the uplink data signal through the connection interface is correctly opened and adjusting a reference value of the uplink data signal on the line; And A display unit which displays a signal input through the lead wire connection terminal on a screen; More, The control unit is a remote control for a semi-automatic noise removing branch and splitter characterized in that for controlling the display unit to be displayed on the display by analyzing the signal input through the lead wire connection terminal.

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