JP2019134283A - Distributor - Google Patents

Abstract

To provide a distributor which can output the signals of BS right-handed broadcasting and CS right-handed broadcasting, separately from the signals of BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting and CS left-handed broadcasting.SOLUTION: The distributor includes a first terminal T1, a second terminal T2, a third terminal T3, a distribution circuit D1, a filter F1 and a housing H1. The distribution circuit D1 distributes a signal supplied from the first terminal T1 to a plurality of signals to supply one of the plurality of signals to the filter F1, and supplies other one of the plurality of signals to the third terminal T3. The filter F1 removes, from the signal supplied by the distribution circuit D1, a transmission frequency band of the BS left-handed broadcasting and the CS left-handed broadcasting, to supply to the second terminal T2. The distribution circuit D1 and the filter F1 are provided inside the housing 1, and at least a part of the first terminal T1, at least a part of the second terminal T2 and at least a part of the third terminal T3 are exposed from the housing.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a distributor.

  The joint reception system is laid in buildings such as buildings and condominiums. An example of the configuration of a conventional joint reception system is shown in FIG. The joint reception system shown in FIG. 5 is configured to include an amplifier 101 with a mixing function and a distributor 102.

  The amplifier 101 with a mixing function mixes and amplifies a signal output from the satellite broadcasting antenna 201 that receives BS right-handed broadcasting and CS right-handed broadcasting and a signal output from the terrestrial broadcasting antenna 202 that receives terrestrial broadcasting. And output to the distributor 102.

  The distributor 102 distributes the electric signal output from the amplifier 101 with a mixing function. The electrical signal output from the distributor 102 is divided into a BS right-handed broadcast, a CS right-handed broadcast signal, and a terrestrial broadcast signal by a duplexer 301 installed in each dwelling unit, and then a 2K compatible television receiver 302. To be supplied. In addition, between the distributor 102 and each dwelling unit, an amplifier and a distributor are appropriately arranged according to the arrangement of each dwelling unit and the number of dwelling units.

JP 2007-300188 A

  The joint reception system shown in FIG. 5 is a 4K or 8K satellite broadcast, which is a 4K or 8K satellite broadcast scheduled for practical use from 2018, at least for a system laid in a building such as a large-scale building or condominium. It has a problem that it cannot receive a left-handed broadcast. That is, simply replacing the satellite broadcasting antenna 201 that receives BS right-handed broadcasting and CS right-handed broadcasting with a satellite broadcasting antenna that receives BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting, and CS left-handed broadcasting. I'm sorry. Since the transmission frequency bands (2224 to 2643 MHz and 2748 to 3224 MHz) of BS left-handed broadcasting and CS left-handed broadcasting are high and the transmission distance of electrical signals in the transmission frequency band of BS left-handed broadcasting and CS left-handed broadcasting is short, This is because there is a high possibility that it will be necessary to increase the number of amplifiers arranged between the dwelling units.

  Here, 4K-compatible TV receivers are required to receive BS left-handed broadcasting and CS left-handed broadcasting. Therefore, at the start of BS left-handed broadcasting and CS left-handed broadcasting, all dwelling units receive BS left-handed broadcasting and CS left-handed broadcasting. It seems unlikely that you would like Therefore, there is a solution to install satellite broadcasting antennas for receiving BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting, and CS left-handed broadcasting individually in the housing units that wish to receive BS left-handed broadcasting and CS left-handed broadcasting. Conceivable. However, depending on the dwelling unit, there arises a new problem such that there is no appropriate place for installing a satellite broadcasting antenna for receiving BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting, and CS left-handed broadcasting.

  The distributor disclosed in Patent Document 1 prevents magnetic saturation of ferrite and prevents distortion, and hopes to receive BS left-handed broadcasting and CS left-handed broadcasting in the joint reception system. However, it is not useful for supplying BS left-handed broadcasting and CS left-handed broadcasting signals only to some dwelling units.

  In view of the above situation, the present invention can separately output BS right-handed broadcast and CS right-handed broadcast signals and BS right-handed broadcast, CS right-handed broadcast, BS left-handed broadcast, and CS left-handed broadcast signals. It is an object of the present invention to provide a distributor and a joint reception system using the distributor.

  In order to achieve the above object, a distributor according to the present invention comprises a first terminal, a second terminal, a third terminal, a distribution circuit, a filter, and a housing, and the distribution circuit Distributes the signal supplied from the first terminal to a plurality of signals, supplies one of the plurality of signals to the filter, and supplies the other one of the plurality of signals to the third terminal. The filter removes the transmission frequency band of BS left-handed broadcasting and CS left-handed broadcasting from the signal supplied by the distribution circuit and supplies it to the second terminal. The distribution circuit and the filter A configuration provided in the housing, wherein at least part of the first terminal, at least part of the second terminal, and at least part of the third terminal are exposed from the housing (first 1).

  In the distributor having the first configuration, the filter has a through function that does not perform filtering, and further includes a switching unit that switches between enabling and disabling the through function (second configuration). May be.

  The distributor having the first configuration may further include a bypass path that bypasses the filter and a switching unit that switches use and non-use of the bypass path (third configuration). Good.

  In order to achieve the above object, the joint reception system according to the present invention has a configuration (fourth configuration) including the distributor having any one of the first to third configurations.

  According to the present invention, a distributor capable of separately outputting a BS right-handed broadcast and CS right-handed broadcast signal and a BS right-handed broadcast, CS right-handed broadcast, BS left-handed broadcast, and CS left-handed broadcast signal, and the distributor A joint reception system using can be realized. As a result, BS left-handed broadcasting and CS left-handed broadcasting signals can be supplied only to some dwelling units that wish to receive BS left-handed broadcasting and CS left-handed broadcasting in the joint reception system.

1 is a schematic external perspective view of a distributor according to an embodiment of the present invention. The figure which shows the structure of the divider | distributor which concerns on one Embodiment of this invention. The figure which shows the structure of the joint reception system which concerns on one Embodiment of this invention. The figure which shows the modification of the divider | distributor which concerns on one Embodiment of this invention. The figure which shows the example of 1 structure of the conventional joint reception system

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a schematic external perspective view of a distributor according to an embodiment of the present invention. A distributor 1 (hereinafter abbreviated as distributor 1) according to an embodiment of the present invention includes a first terminal T1, a second terminal T2, a third terminal T3, and a housing H1. . Part of the first terminal T1, part of the second terminal T2, and part of the third terminal T3 are exposed to the outside from the housing H1.

  FIG. 2 is a diagram illustrating a configuration of the distributor 1. The distributor 1 includes a distribution circuit D1 and a filter F1 in addition to the first to third terminals T1 to T3 and the housing H1. The distribution circuit D1 and the filter F1 are provided inside the housing H1.

  The distribution circuit D1 distributes the signal supplied from the first terminal T1 into two signals, supplies one of the two signals to the filter F1, and supplies the other to the third terminal T3.

  The filter F1 removes the transmission frequency bands of BS left-handed broadcasting and CS left-handed broadcasting (frequency bands of 2224 MHz to 2643 MHz and 2748 MHz to 3224 MHz) from the signal supplied by the distribution circuit D1, and supplies the resultant to the second terminal T2. This is a low-pass filter. Since the filter F1 passes the transmission frequency bands of BS right-handed broadcasting and CS right-handed broadcasting (frequency bands of 1032 MHz to 1489 MHz and 1595 MHz to 2071 MHz), the cut-off frequency of the filter F1 is BS right-handed broadcasting and It is set between the transmission frequency band of CS right-handed broadcasting and the transmission frequency band of BS left-handed broadcasting and CS left-handed broadcasting.

  With the configuration described above, BS right-handed broadcasting and CS right-handed broadcasting signals are output from the second terminal T2 of the distributor 1, and BS right-handed broadcasting and CS right-handed broadcasting are output from the third terminal T3 of the distributor 1. Broadcast, BS left-handed broadcast, and CS left-handed broadcast signals are output. That is, the distributor 1 can separately output the BS right-handed broadcast and CS right-handed broadcast signals and the BS right-handed broadcast, CS right-handed broadcast, BS left-handed broadcast, and CS left-handed broadcast signals.

  Thereby, when the distributor 1 is used in the joint reception system, the BS left-handed broadcast and CS left-handed broadcast signals are supplied only to some dwelling units that wish to receive BS left-handed broadcasting and CS left-handed broadcasting in the joint receiving system. be able to.

  Next, an example of a joint reception system including the distributor 1 will be described. FIG. 3 is a diagram illustrating a configuration example of a joint reception system including the distributor 1, that is, a diagram illustrating a configuration of the joint reception system according to an embodiment of the present invention.

  The common reception system shown in FIG. 3 has a configuration in which a distributor 1 and an additional wiring 2 are added to the common reception system shown in FIG. That is, the joint reception system shown in FIG. 3 includes a distributor 1, an additional wiring 2, an amplifier 101 with a mixing function, and a distributor 102.

  A signal output from the satellite broadcasting antenna 203 that receives BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting, and CS left-handed broadcasting is supplied to the first terminal T1 of the distributor 1. The second terminal T2 of the distributor 1 is connected to the amplifier 101 with a mixing function, and the third terminal T3 of the distributor 1 is connected to the additional wiring 2.

  The additional wiring 2 is drawn to a dwelling unit (a dwelling unit located at the lower right of the four dwelling units illustrated in FIG. 3) that desires to receive BS left-handed broadcasting and CS left-handed broadcasting.

  The amplifier 101 with a mixing function mixes and amplifies the signal output from the second terminal T2 of the distributor 1 and the signal output from the terrestrial broadcast antenna 202 that receives the terrestrial broadcast, and outputs the mixed signal to the distributor 102. To do.

  The distributor 102 distributes the electric signal output from the amplifier 101 with a mixing function. The electric signal output from the distributor 102 is divided into a BS right-handed broadcast, a CS right-handed broadcast signal, and a terrestrial broadcast signal by a duplexer 301 installed in each dwelling unit. In a dwelling unit that does not wish to receive BS left-handed broadcast and CS left-handed broadcast, BS right-handed broadcast and CS right-handed broadcast signals and terrestrial broadcast signals are supplied from the duplexer 301 to the 2K-compatible television receiver 302. On the other hand, in a dwelling unit that wants to receive BS left-handed broadcasting and CS left-handed broadcasting, a terrestrial broadcast signal is supplied from the duplexer 301 to a 4K compatible television receiver 303, and BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting. , And CS left-handed broadcast signals are supplied from the additional wiring 2 to the 4K compatible television receiver 303.

  In addition, between the distributor 102 and each dwelling unit, an amplifier and a distributor are appropriately arranged according to the arrangement of each dwelling unit and the number of dwelling units. In addition, between the distributor 1 and each dwelling unit that desires to receive BS left-handed broadcasting and CS left-handed broadcasting, an amplifier or the like is provided according to the arrangement of each dwelling unit that desires to receive BS left-handed broadcasting and CS left-handed broadcasting and the number of dwelling units. A distributor is appropriately arranged.

<Others>
Various technical features disclosed in the present specification can be variously modified within the scope of the technical creation in addition to the above-described embodiment.

  For example, the filter F1 may have a through function that does not perform filter processing, and the distributor 1 may include a switching unit that switches between enabling and disabling the through function of the filter F1. As the switching means, for example, it is desirable to use a manual switch that can be operated from the outside of the housing H1 without opening the housing H1. When the through function of the filter F1 is valid, the distributor 1 performs the same operation as in the above-described embodiment.

  On the other hand, the number of dwelling units that wish to receive BS left-handed broadcasting and CS left-handed broadcasting will increase in the future, and the joint reception system will be improved. BS right-handed broadcasting and CS right-handed broadcasting signals will be sent from the second terminal T2 of the distributor 1. If it is more convenient to output BS right-handed broadcasting, CS right-handed broadcasting, BS left-handed broadcasting, and CS left-handed broadcasting signals, the through function of the filter F1 may be disabled.

  For example, instead of adding a through function to the filter F1, a bypass path B1 and switches SW1 and SW2 may be added as shown in FIG. The bypass path B1 bypasses the filter F1. The switches SW1 and SW2 are switching means for switching between using and not using the bypass path B1. As the switching means, for example, it is desirable to use a manual switch that can be operated from the outside of the housing H1 without opening the housing H1. When the bypass path B1 is not used, the distributor 1 performs the same operation as in the above-described embodiment.

  On the other hand, the number of dwelling units that wish to receive BS left-handed broadcasting and CS left-handed broadcasting will increase in the future, and the joint reception system will be improved. BS right-handed broadcasting and CS right-handed broadcasting signals will be sent from the second terminal T2 of the distributor 1. If it is more convenient to output BS right-handed broadcast, CS right-handed broadcast, BS left-handed broadcast, and CS left-handed broadcast signals, the bypass route B1 may be used.

  Further, for example, in the above-described embodiment, a part of each of the first to third terminals T1 to T3 is exposed from the housing H1, but each of the first to third terminals T1 to T3 is entirely the housing. You may make it expose from H1.

  Further, for example, in the above-described embodiment, the distributor is a two-distributor, but it may be three or more distributors such as a three-distributor or a four-distributor. For example, in the case of a four distributor, the distribution circuit has a four distribution circuit configuration, and any one of the following first to third modifications may be adopted.

  The first modification is a modification pattern in which the number of filters is increased by two as compared with the above-described embodiment, and the number of terminals that output the same signal as the second terminal T2 is increased by two.

  The second modification is a terminal for increasing the number of filters by one as compared with the above-described embodiment and increasing the number of terminals that output the same signal as the second terminal T2 to output the same signal as the third terminal T3. Is a deformation pattern in which one is increased.

  The third modification is a modification pattern in which two terminals that output the same signal as the third terminal T2 are added without increasing the number of filters as compared with the above-described embodiment.

DESCRIPTION OF SYMBOLS 1 Distributor 2 Additional wiring B1 Bypass path D1 Distribution circuit F1 Filter H1 Case SW1, SW2 Switch T1-T3 1st-3rd terminal

Claims (4)

A first terminal;
A second terminal;
A third terminal;
A distribution circuit;
Filters,
A housing,
The distribution circuit distributes the signal supplied from the first terminal to a plurality of signals, supplies one of the plurality of signals to the filter, and supplies the other one of the plurality of signals to the first signal. 3 to the terminal
The filter removes transmission frequency bands of BS left-handed broadcasting and CS left-handed broadcasting from the signal supplied by the distribution circuit and supplies the second terminal to the second terminal,
The distribution circuit and the filter are provided inside the housing;
At least a part of the first terminal, at least a part of the second terminal, and at least a part of the third terminal are exposed from the housing. The filter has a through function that does not perform filtering,
The distributor according to claim 1, further comprising a switching unit that switches between enabling and disabling the through function. A bypass path for bypassing the filter;
The distributor according to claim 1, further comprising switching means for switching between use and non-use of the bypass path.   A joint reception system comprising the distributor according to claim 1.