KR100716578B1 - home rebroadcasting device for multi-channel signal - Google Patents

Abstract

A feature of the present invention for achieving the above object is a first directional coupler for distributing a signal input from a wired line flowing into the home into a TV out signal and a branch signal transmitted to the TV; A distribution amplifier for amplifying the branch signal distributed from the first directional coupler; Signal distribution means for receiving a signal output from the distribution amplifier and distributing a plurality of outputs; Filters connected to an output terminal for outputting the plurality of outputs to pass only a predetermined frequency band at the plurality of outputs of the signal distribution means; It includes a transmission antenna for receiving the filtered signal from the filters and transmits wirelessly.

VHF, UHF, DMB

Description

Home rebroadcasting device for multi-channel signal

1 is a circuit block diagram for explaining a first embodiment of the present invention.

2 is a circuit block diagram for explaining a second embodiment of the present invention.

3 is a circuit block diagram illustrating a third embodiment of the present invention.

The present invention relates to a home multi-channel repeater for relaying RF signals, including FM radio, terrestrial TV, DMB signal in the home of the apartment house.

FM AGC, terrestrial, or satellite DMB of head end equipment installed in disaster prevention rooms such as apartment houses, etc. Satellite DMB from the TV terminal installed in the living room of each household through the wired network or the distributor output terminal in the distribution cabinet. Signal, terrestrial DMB signal, analog broadcast, mobile phone signal, and PCS signal.

However, the output terminal installed in each of these households is simply connected to a socket for receiving only a TV, or a repeater for relaying an FM radio signal such as a patent application filed by the present applicant (Patent Application 2004-0029901). Therefore, it is difficult to receive broadcasts of various channels.

The present invention is to solve the above problems, and to receive a variety of channels, including FM signal, terrestrial DMB signal, analog broadcast, mobile phone signal, PCS signal in the home of the apartment.

In addition, another object of the present invention is to provide a repeater to improve the reception quality of the multi-channel in the region of poor reception in the home.

A feature of the present invention for achieving the above object is a first directional coupler for distributing a signal input from a wired wire flowing into the home into a TV out signal transmitted to the TV and the attenuated branch signal; A distribution amplifier for amplifying the branch signal distributed from the first directional coupler; Signal distribution means for receiving a signal output from the distribution amplifier and distributing a plurality of outputs; Filters connected to an output terminal for outputting the plurality of outputs to pass only a predetermined frequency band at the plurality of outputs of the signal distribution means; And a transmission antenna for receiving the filtered signal from the filters and transmitting the signal wirelessly.

In addition, another aspect of the present invention is a directional coupler for distributing a signal input from a wired line flowing into the home into a TV out signal and branch signals transmitted to the TV; First mobile phone band amplification and filtering means for amplifying and filtering a frequency signal of a mobile phone band among the branch signals output from the directional coupler; An antenna for converting and transmitting a wired signal input from the first mobile phone band amplification and filtering means into a wireless signal, or converting and receiving a received wireless signal into a wired signal; Second cellular phone band amplification and filtering means for receiving the wired signal converted from the received radio signal from the antenna to filter, amplify, and input the frequency signal of the cellular phone band to the directional coupler; It is connected to the antenna, the first mobile phone band amplification and filtering means, the second mobile phone band amplification and filtering means, and outputs a wired signal converted from a radio signal received by the antenna to the second mobile phone band amplification and filtering means. And a duplex filter for outputting a signal input from the first cellular band amplification and filtering means to the antenna.

In addition, another aspect of the present invention is a directional coupler for distributing the signal from the wire line to the TV out signal and the branch signals transmitted to the TV; Third mobile phone band amplifying and filtering means for amplifying and filtering a frequency signal of a mobile phone band among the branch signals output from the directional coupler; A first antenna for transmitting a wired signal input from the third mobile phone band amplification and filtering means as a wireless signal, receiving a wireless signal, converting the wired signal into a wired signal, and outputting the wired signal; A fourth cellular phone band amplifying and filtering means for filtering, amplifying and inputting a frequency signal of a cellular phone band among the wired signals output from the first antenna to be input to the directional coupler; Connected to the first antenna, the third mobile phone band amplification and filtering means, and the fourth mobile phone band amplification and filtering means to output a signal received from the first antenna to the fourth mobile phone band amplification and filtering means, and A duplex filter outputting a signal input from a third cellular phone band amplification and filtering means to the first antenna; And a second antenna for wirelessly transmitting a signal output from the fourth mobile phone band amplification and filtering means.

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Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 is a circuit block diagram for explaining a first embodiment of the present invention.

1 is a wireless multi-channel repeater for outputting a wireless relay signal by distributing a signal output from the RF output terminal to a VHF Low, VHF High signal, UHF signal, TV output signal.

At this time, the VHF Low signal is a signal having a bandwidth of 54 ~ 108Mhz and includes an FM radio signal of 88Mhz ~ 108Mhz, the VHF High signal is a signal having a bandwidth of 174 ~ 216 Mhz and includes a VHF band DMB signal, UHF signal Is a signal having a bandwidth of 470 ~ 864Mhz and includes a UHF band DMB signal.

The first directional coupler 1 is connected to an RF output terminal installed in a home wall or household terminal box. The RF output terminal is a satellite DMB signal, terrestrial DMB signal, analog terrestrial TV broadcast signal, and digital terrestrial signal transmitted from FM AGC amplifier, terrestrial wave or satellite DMB AGC amplifier of head end equipment installed in disaster prevention rooms such as apartment houses. The TV broadcast signal, the mobile phone signal, and the PCS signal are input to the first directional coupler 1.

The first directional coupler 1 is a TV out signal transmitted to an external TV (not shown) connected to the first directional coupler 1 and a branch signal transmitted to the distribution amplifier 2. To distribute. At this time, the first directional coupler 1 has a pass output terminal which is negligible due to the small size of the attenuation and attenuation output terminal where the attenuation is large. The signal is drawn out. The distribution amplifier 2 is an amplifier which amplifies to compensate for the attenuated signal loss of the branch signal output from the first directional coupler 1, and the amplified signal is input to the signal distribution means 16.
The signal distribution means 16 includes a matching transformer 4 and a matching transformer 5 which receive the divided outputs of the second directional coupler 3 and the second directional coupler 3 which receive signals from the distribution amplifier 2. And a third directional coupler 6 connected to the matching transformer 4 and a fourth directional coupler 15 connected to the matching transformer 5.

A signal distributed from the second directional coupler 3 is input to the matching transformer 4 and output to the third directional coupler 6, while a signal distributed from the second directional coupler 3 is input to the matching transformer 5. It is input and output to the fourth directional coupler 15.

Among the distribution signals of the third directional coupler 6, the VHF low signal passing through the VHF low band filter 7 is wirelessly emitted from the antenna 8. At this time, the VHF Low signal emitted from the antenna 8 emits a frequency of 54 ~ 108Mhz, which is a frequency band of terrestrial TV broadcasting, so that a radio broadcast signal of 88 ~ 108Mhz is included.

In addition, the VHF High signal, which has passed through the VHF High band filter 9 among the distribution signals in the third directional coupler 6, is emitted by the antenna 10 wirelessly. The VHF High signal emitted from the antenna 10 includes a signal of terrestrial DMB broadcasting at a frequency of 174 to 216 MHz which is a frequency band of terrestrial TV broadcasting. In addition, an interference prevention circuit 11 is provided between the input terminal of the VHF low band filter 7 and the input terminal of the VHF high band filter 8 in which resistors, capacitors, and inductors are connected in series to prevent interference between mutual distribution lines. .

In addition, the signal distributed in the fourth directional coupler 15 passes through the UHF band filter 12 to emit the UHF signal from the antenna 13. At this time, the UHF signal is a frequency band signal of 470 ~ 864Mhz and includes a terrestrial digital broadcasting signal of the UHF band.

Reference numeral R denotes a terminating resistor connected to the tab terminal of the fourth directional coupler 15, and 14 denotes an interference prevention circuit.

2 is a circuit block diagram for explaining a second embodiment of the present invention.

The directional coupler 21 includes signals of FM, analog / digital terrestrial TV, terrestrial DMB, satellite DMB band and directional coupler 31, mobile phones and personal mobile communication (PCS) bands from RF output terminals. While the signal is input, the cell phone band signal transmitted to the outside from the mobile phone in the home received from the antenna 30 is input through the directional coupler 31 and transmitted to the outside through the RF output terminal.

The directional coupler 21 is connected to the terrestrial band amplifier 22, the directional coupler 31 and the cellular phone band amplifier 27 so that the output of the directional coupler 21 is distributed and drawn in, respectively. The output of the terrestrial band amplifier 22 is input to the divider 23, in which the VHF low band signal, the VHF high band signal, and the UHF band signal are respectively applied to the antennas 24, 25, and 26. It is sent out through.

In addition, the signal of the mobile phone band passing through the directional coupler 21 at the RF output terminal is input to the first mobile phone band amplification and filtering means 36 composed of the mobile phone band amplifier 27 and the mobile phone band filter 28 to amplify and Is filtered. The output amplified and filtered from the first cellular band amplification and filtering means 36 passes through a duplex filter 29 and is output as a radio signal from the antenna 30. In addition, the duplex filter 29 is connected with a second cellular phone band amplification and filtering means 37 consisting of a cellular phone band filter 33 and a cellular phone band amplifier 32. At this time, the antenna 30 is an antenna for transmitting / receiving a cellular phone band signal, and the signal of the cellular phone band transmitted from the cellular phone in the home and received by the antenna 30 is filtered by the duplex filter 29 so as to amplify and filter the second cellular phone band. It is input to 37. At this time, the duplex filter 29 is a filter that filters the forward signal and the reverse signal without interference.

The cellular phone band signal received at the antenna 30 passing through the duplex filter 29 is filtered by the cellular phone band filter 33 and via the cellular band amplifier 32 to the directional coupler 21 via the directional coupler 31. It is inputted to the outside through the mobile phone band antenna connected to the RF output terminal.

In addition, the directional coupler 31 receives the signal distributed by the directional coupler 21 and inputs a TV broadcast signal to the TV antenna input terminal of the TV set connected by wire.

In the second embodiment according to the above configuration, the FM band signal, the terrestrial analog / digital TV, the terrestrial DMB, and the satellite DMB band signals are distributed through the splitter 23, and the antenna 24, 25, and 26 are housed. Send it out. At this time, the divider 23 implements a function of simply distributing a signal, a matching transformer, a filter of each frequency band, and an amplifier.

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As such, the multi-channel signal input from the RF output terminal to the directional coupler 21 is amplified and transmitted through the antennas 24, 25, 26, and 30, and the cellular phone transmitted from the mobile phone in the home. The band signal is received by the antenna 30 and transmitted to the RF output terminal and output to the outside, thereby eliminating the shadow area of the cellular phone signal, especially the shadow area that is frequently generated in high-rise apartments more than 15 stories.

 3 is a circuit block diagram illustrating a third embodiment of the present invention.

In the third embodiment, the cellular phone band signal transmitted from the cellular phone in the home received by the first antenna 40 in the second embodiment is transmitted by the second antenna 35. Except for the related part, since the same function as the second embodiment is performed, the same reference numerals as in the second embodiment are used, and a separate description is omitted. The signal input from the RF output terminal to the directional coupler 21 is distributed to the third mobile phone band amplification and filtering means 38 consisting of the mobile phone band amplifier 27 and the mobile phone band filter 28 and the terrestrial band amplifier 22. The output signal of the terrestrial band amplifier 22 is divided into the VHF high, VHF low, and UHF signals by the splitter 23, and is wirelessly output by the antennas 24, 25, and 26. And the cellular phone band frequency signal output from the filtering means 38 passes through the duplex filter 29 and is wirelessly output from the first antenna 40.

In addition, the cellular phone band signal transmitted in the home is received by the first antenna 40, the cellular phone band filter 33, the cellular phone band amplifier 32, the cellular phone band filter 34 through the duplex filter 29 Input to the band amplification and filtering means 39. The signal filtered by the cellular phone band filter 33 is amplified by the cellular phone band amplifier 32, and the amplified signal is filtered again by the cellular phone band filter 34 and then transmitted wirelessly by the second antenna 35.

According to the present invention having the above object and configuration, by amplifying and transmitting a variety of signals including FM band broadcasting signal, terrestrial DMB signal, analog and digital broadcasting, mobile phone signal to receive the RF signal well in the home without sound range It is possible to transmit a good mobile phone signal to the outside from within the home.

Claims (10)

A first directional coupler for distributing a signal flowing from a wired line flowing into a home into a TV out signal transmitted to the TV and a branched signal; A distribution amplifier for amplifying the attenuated branch signal distributed from the first directional coupler; Signal distribution means for receiving a signal output from the distribution amplifier and distributing a plurality of outputs; Filters connected to an output terminal for outputting the plurality of outputs to pass only a predetermined frequency band at the plurality of outputs of the signal distribution means; And a transmission antenna for receiving the filtered signal from the filters and transmitting the signal wirelessly. 2. The household apparatus as claimed in claim 1, wherein the signal distributing means distributes the input signal into signals of VHF high, VHF low, and UHF. Channel repeater. delete delete delete delete delete A directional coupler for distributing a signal input from a wired line flowing into the home into a TV out signal and a branch signal transmitted to the TV; First mobile phone band amplification and filtering means for amplifying and filtering a frequency signal of a mobile phone band among the branch signals output from the directional coupler; An antenna for converting and transmitting a wired signal input from the first mobile phone band amplification and filtering means into a wireless signal, or converting and receiving a received wireless signal into a wired signal; Second cellular phone band amplification and filtering means for receiving the wired signal converted from the received radio signal from the antenna to filter, amplify, and input the frequency signal of the cellular phone band to the directional coupler; It is connected to the antenna, the first mobile phone band amplification and filtering means, the second mobile phone band amplification and filtering means, and outputs a wired signal converted from a radio signal received by the antenna to the second mobile phone band amplification and filtering means. And a duplex filter for outputting a signal input from the first mobile phone band amplification and filtering means to the antenna. A directional coupler for distributing a signal flowing from a wired line flowing into a home into a TV out signal and a branch signal transmitted to the TV; Third mobile phone band amplifying and filtering means for amplifying and filtering a frequency signal of a mobile phone band among the branch signals output from the directional coupler; A first antenna for transmitting a wired signal input from the third mobile phone band amplification and filtering means as a wireless signal, receiving a wireless signal, converting the wired signal into a wired signal, and outputting the wired signal; A fourth cellular phone band amplifying and filtering means for filtering, amplifying and inputting a frequency signal of a cellular phone band among the wired signals output from the first antenna to be input to the directional coupler; Connected to the first antenna, the third mobile phone band amplification and filtering means, and the fourth mobile phone band amplification and filtering means to output a signal received from the first antenna to the fourth mobile phone band amplification and filtering means, and A duplex filter outputting a signal input from a third cellular phone band amplification and filtering means to the first antenna; And And a second antenna for wirelessly transmitting a signal output from the fourth mobile phone band amplification and filtering means. The method of claim 8, wherein the branch signals output from the directional coupler are one or two selected from signals of VHF high, VHF low, and UHF. Multi-channel repeater for home, characterized in that consisting of the above branch signal and the signal of the mobile phone frequency band.

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