JP2011109704A - Booster equipped with branch and distribution functions - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a booster equipped with branch and distribution functions, which includes various branch and distribution functions to an input signal and a signal amplification function, commonalizes product specifications by reducing kinds of products, reduces a product cost, and improves operation efficiency of setting-up works. <P>SOLUTION: The booster equipped with the branch and distribution functions includes: a booster functioning part BSTA to amplify each signal kind up to a prescribed signal level by branching an input broadcast signal; and a branch/distribution functioning part SELA to switch a branch output and a distribution output of an amplified broadcast signal. The branch/distribution functioning part SELA has a change-over switch (a second selection means) SWB to select either a path (a first signal processing path) for supplying four branch signals to an output terminals OUT and OUT1-OUT4 or a path (a second signal processing path) for supplying four distribution signals to the output terminals OUT1-OUT4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a booster having a branch distribution function, and more particularly to a booster having a good branch distribution function when applied to a transmission path such as a joint reception system.

  In recent years, broadcast signals (radio waves) such as terrestrial broadcasts and satellite broadcasts are received by a single receiving antenna in large-scale new towns, apartment buildings such as condominiums, or high-rise buildings, etc., and installed in each dwelling unit. A joint reception system for transmitting to a receiver is known.

Here, a conventional joint reception system will be briefly described with reference to the drawings.
FIG. 12 is a schematic configuration diagram showing a transmission path of a joint reception system in a conventional apartment house or the like.
As shown in FIG. 12, the joint reception system 100 generally includes a master antenna 101 that receives a terrestrial broadcast signal and a broadcast signal transmitted from a broadcasting satellite (BS) or a communication satellite (CS). A booster (amplifier) 102a to 102d that amplifies the signal level of the received broadcast signal, and the broadcast signal is divided into a single high signal level and a plurality of low signal levels, and each is connected to a trunk line (high signal level). And branching units 103a and 103b for supplying to the branch lines (low signal level), and a distributor for equally dividing the broadcast signal into a predetermined signal level and supplying it to a plurality of branch lines in order to transmit the broadcast signal to each receiving terminal 104a-104c and the receiving terminal 105 which is provided for each dwelling unit and receives the transmitted broadcast signal and outputs it to the audiovisual equipment.

  In the joint reception system 100 having such a configuration, for example, a broadcast signal received by a master antenna 101 provided on the roof of an apartment house is first amplified to a predetermined signal level by a booster 102a, and then transmitted to each floor. The signals are sequentially transmitted downstairs via branching devices 103a and 103b provided for each. At this time, the branches 103a and 103b are connected to each other by a transmission line La serving as a trunk line, and a high level signal is supplied to each floor, and a plurality of transmission lines Lb serving as branch lines are connected to each floor to provide a low level signal. Is supplied. A distributor 104c is installed at the end of the transmission line La. The distributor 104c divides the branch line according to the number of receiving terminals (number of dwelling units) and supplies a low level signal to each dwelling unit.

In each floor, after the signal levels of the transmission signals divided and supplied from the branching devices 103a and 103b are amplified by the boosters 102b to 102d, the number of receiving terminals is further increased through the multistage distributors 104a and 104b. Divided into branch lines according to the number of units. At this time, it goes without saying that the signal level supplied to each branch line is set to a signal level suitable for receiving broadcasts in each dwelling unit.
Note that the joint reception system as described above is described in Patent Document 1 and the like.

JP-A-10-190505

  In the conventional joint reception system as described above, when transmitting a reception signal to each dwelling unit or the like, a branching unit or a distributor is arranged at each branch point, and in order to secure a signal level to be transmitted everywhere. There was a need to place separate boosters. Further, at the above points, as shown in FIG. 12, there are many cases where a booster and a distributor or a booster and a branching device are combined and installed in the vicinity.

  However, in the conventional joint reception system, equipment corresponding to the specifications must be prepared individually and installed and wired individually at the transmission line wiring site, and the transmission cable increases as the number of receiving units increases. A large number of branching devices and distributors are needed according to the wiring structure of the product, the number of devices increases, installation work becomes complicated, and product costs and construction work increase as product types (product lineup) increase. There was a problem of increasing the cost. In addition, there has been a problem that the installation space of the device becomes wide.

Therefore, in view of such problems, the present invention has various branching, distribution functions, and signal amplification functions for input signals, and reduces the types of products to make product specifications common and reduce product costs. At the same time, it is an object of the present invention to provide a booster having a branch distribution function capable of improving the work efficiency of installation work.
Another object of the present invention is to reduce the installation space by reducing the equipment size while providing the above functions.

A booster having a branch distribution function according to the invention of claim 1 is provided.
First selection means for selecting a desired transmission signal among transmission signals of one or a plurality of different signal types input via an input terminal;
A signal amplifying unit for amplifying the selected transmission signal to a desired signal level;
A first signal processing path for generating a predetermined number of branch signals based on the transmission signal amplified by the signal amplification unit;
A second signal processing path for generating a predetermined number of distribution signals based on the amplified transmission signal;
A second selection means for selecting and setting at least one of the first signal processing path and the second signal processing path;
An output terminal group that is provided in a subsequent stage of the first signal processing path and the second signal processing path and outputs the branch signal or the distribution signal;
With
The input terminal and the output terminal group are provided on different side surfaces of the housing, and the first selection unit is disposed on the front surface of the housing in the vicinity of the input terminal, and the vicinity of the output terminal group. The second selection means is arranged in front of the housing.

The invention according to claim 2 is a booster having the branch distribution function according to claim 1,
At least a signal amplification function unit including the first selection unit and the signal amplification unit, the first signal processing path, the second signal processing path, the second selection unit, and the output terminal group. A first housing having a predetermined shape and a branch distribution function unit;
A second housing having at least a power supply function unit for supplying a predetermined drive power to the signal amplification function unit, and having a shape substantially equivalent to the first housing;
Comprising
The housing is the first housing,
The input terminal and the output terminal group are provided on different side surfaces of the first housing, and the first selection unit is disposed on the front surface of the first housing near the input terminal. The second selection means is arranged in front of the first casing in the vicinity of the output terminal group.

The invention described in claim 3 is a booster having the branch distribution function according to claim 2,
The first and second casings are assembled with each other in a stacked structure, with the first casing as an upper stage and the second casing as a lower stage.

Invention of Claim 4 is the booster provided with the branch distribution function in any one of Claims 1 thru | or 3,
The output terminal group includes a first output terminal group composed of a plurality of output terminals, and a single second output terminal,
The branch signal is output from the first output terminal group and the second output terminal, and the distribution signal is output from the first output terminal group.

The invention described in claim 5 is a booster having the branch distribution function according to claim 4,
A third signal processing path for directly passing the amplified transmission signal as a through output;
The second output terminal is provided at a subsequent stage of the third signal processing path, and the through output is output from the second output terminal by selectively setting the second selection unit. Features.

  According to the booster having the branch distribution function according to the present invention, it is possible to reduce the types of products, share the product specifications, and reduce the product cost while having various branches, distribution functions and signal amplification functions for the input signal. In addition, the work efficiency of the installation work can be improved.

It is a schematic block diagram which shows the 1st reference example of the branch and divider | distributor applied to this invention, and a table which shows the operation state. It is the schematic block diagram which shows the other example which has the 2 branch / 2 distribution function equivalent to the branch and divider | distributor shown to the 1st reference example, and the table which shows the operation state. It is a schematic block diagram which shows the 2nd reference example of the branch and divider | distributor applied to this invention, and a table which shows the operation state. It is a schematic block diagram which shows the transmission path | route of the joint reception system to which the branch / divider | distributor shown to the reference example is applied. It is a schematic block diagram which shows 1st Embodiment of the booster provided with the branch distribution function which concerns on this invention. It is a general | schematic external view which shows a specific example of the booster provided with the branch distribution function which concerns on this embodiment. It is a schematic block diagram which shows 2nd Embodiment of the booster provided with the branch distribution function which concerns on this invention. It is a table which shows the operation state of the branch distribution function part applied to the booster which concerns on this embodiment. It is a schematic external view which shows 2nd Embodiment of the booster provided with the branch distribution function which concerns on this embodiment. It is the schematic block diagram which shows the branch distribution function part applied to 3rd Embodiment of the booster provided with the branch distribution function which concerns on this invention, and the table which shows the operation state. It is a schematic block diagram which shows the transmission path | route of the joint reception system to which the booster provided with the branch distribution function which concerns on this invention is applied. It is a schematic block diagram which shows the transmission path | route of the common reception system in the conventional housing complex etc. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
First, a reference example of a branch / distributor applied to the present invention will be described.
<First reference example of branch / distributor>
FIG. 1 is a schematic configuration diagram showing a first reference example of a branch / distributor applied to the present invention, and a table showing its operation state.

  As shown in FIG. 1 (a), the branch / distributor according to this reference example is a changeover switch (selection means) comprising a double pole double throw switch in which an input signal is supplied to an input contact Pin via an input terminal IN. SW11 and a 2-distributor DS11 that distributes a signal applied to one side switching contact PA1 of the changeover switch SW11 and outputs one distribution signal to a switching contact PA2 on one side of the changeover switch SW11; The output terminal OUT11 from which the other distribution signal from the distributor DS11 is output, the two distributor DS12 that distributes the signal applied to the output contact Pout of the changeover switch SW11 in two, and the distribution signal from the two distributor DS12 are output. Individual output terminals OUT12 and OUT13. The switching contacts PB1 and PB2 on the other side of the selector switch SW11 are connected to each other by signal lines.

  In the branch / distributor having such a configuration, as shown in FIG. 1B, when the changeover switch SW11 is switched to the connection contact PA1 / PA2 side, the input signal is sent to the predetermined signal level by the two distributors DS11. The one divided signal is supplied and outputted as it is to the output terminal OUT11. Further, the other distributed signal of the 2-distributor DS11 is equally divided (divided into two) by the 2-distributor DS12 to be supplied to and output from the output terminals OUT12 and OUT13. That is, with respect to the signal level L1 of the input signal, a signal having a signal level L1 × 1/2 is supplied to the output terminal OUT11, and the signal levels L1 × 1/4 are respectively supplied to the output terminals OUT12 and OUT13. Thus, a two-branch function is realized.

  Therefore, a path for generating a branch signal from the input terminal IN to the output terminals OUT11 to OUT13 via the changeover switches SW11 and DS11 and DS12 when the changeover switch SW11 is set to the connection contact PA1 / PA2 side. Constitutes a first signal processing path in the present invention.

  On the other hand, when the changeover switch SW11 is switched to the connection contact PB1 / PB2 side, the input signal is equally divided into two predetermined signal levels by the two distributor DS12 and supplied to and output from the output terminals OUT12 and OUT13. The That is, a signal having a signal level L1 × 1/2 is supplied to the output terminals OUT12 and OUT13 with respect to the signal level L1 of the input signal, thereby realizing a two-distribution function.

  Therefore, when the changeover switch SW11 is set to be switched to the connection contacts PB1-PB2 side, a path for generating a distribution signal from the input terminal IN to the output terminals OUT12, OUT13 via the changeover switch SW11, distributor DS12 is as follows. The second signal processing path in the present invention is configured.

Therefore, according to the branch / distributor according to the present reference example, by selecting the changeover switch SW11 arbitrarily, the single branch / distributor can select the 2-branch output or the 2-distribution output of the input signal. And a 2-branch / 2-distribution function can be obtained.
Further, since the branch signal and distribution signal output terminals are also used, the number of input / output terminals can be suppressed, and a small branch / distributor can be realized.
In addition, it is possible to reduce the types of equipment used to build a joint reception system, share product specifications, reduce product costs, improve work efficiency of installation work, and reduce work costs. . Details will be described later.

FIG. 2 is a schematic configuration diagram showing another example of a branch / distributor having a 2-branch / 2-distribution function equivalent to the branch / distributor shown in the first reference example described above, and shows an operation state thereof. It is a table.
As shown in FIG. 2A, as another configuration for realizing the same function as the above-described reference example, two distributors DS11 ′ for distributing the input signal into two and one of the two distributors DS11 ′ are used. An output terminal OUT11 ′ from which the distribution signal of the two is distributed, a change-over switch SW11 ′ comprising a double-pole double-throw switch in which the other distribution signal from the two-distributor DS11 ′ is applied to the input contact Pin, and the change-over switch SW11 ′. A signal applied to one side switching contact PB1 is divided into two, and one distribution signal is output to one side switching contact PB2 of the changeover switch SW11 ′, and an output contact of the changeover switch SW11 ′. An output terminal OUT12 ′ from which a signal applied to Pout is output and an output terminal OUT13 ′ from which the other distributed signal from the 2-distributor DS12 ′ is output are configured. Note that the switching contacts PA1 and PA2 on the other side of the switch SW11 ′ are connected to each other by signal lines.

  In the branch / distributor having such a configuration, as shown in FIG. 2B, when the changeover switch SW11 ′ is switched to the connection contact PA1 / PA2 side, the input signal is given by the two distributor DS11 ′ to a predetermined value. The signal level is equally divided and supplied to and output from the output terminals OUT11 ′ and OUT12 ′. That is, with respect to the signal level L1 of the input signal, signals having a signal level L1 × 1/2 are supplied to the output terminals OUT11 ′ and OUT12 ′, thereby realizing a two-distribution function.

  On the other hand, when the changeover switch SW11 ′ is switched to the connection contact PB1 / PB2 side, the input signal is equally divided into a predetermined signal level by the two distributors DS11 ′, and one distribution signal is supplied to the output terminal OUT11 as it is. Is output. The other distributed signal of the 2-distributor DS11 ′ is equally divided into a predetermined signal level by the 2-distributor DS12 ′, and is supplied to and output from the output terminals OUT12 ′ and OUT13 ′. That is, with respect to the signal level L1 of the input signal, a signal having a signal level L1 × 1/2 is output to the output terminal OUT11 ′, and the signal level L1 × is output to the output terminals OUT12 ′ and OUT13 ′. A signal having ¼ is output, and a two-branch function is realized.

<Second reference example of branch / distributor>
Next, a second reference example of the branch / distributor applied to the present invention will be described with reference to the drawings.
FIG. 3 is a schematic configuration diagram showing a second reference example of the branching / distributing device applied to the present invention, and a table showing its operation state. Here, about the structure equivalent to the reference example mentioned above, the same code | symbol is attached | subjected and the description is simplified.
In this reference example, based on the concept of the branch / distributor having the 2-branch / 2-distribution function shown in the first reference example (FIG. 1), a 4-branch / 4-distribution is performed by a single branch / distributor. It has a function.

  As shown in FIG. 3A, the branch / distributor according to the present reference example distributes the signal applied to the changeover switch SW21 whose input signal is supplied to the input contact Pin and the switching contact PA1 on one side into two. The two distributors DS21 that output one distribution signal to the switching contact PA2, the output terminal OUT21 that outputs the other distribution signal from the two distributors DS21, and the signal applied to the output contact Pout of the changeover switch SW21 4 distributor DS22 that distributes the four signals, and individual output terminals OUT22 to OUT25 from which the distribution signal from the four distributor DS22 is output. The switching contacts PB1 and PB2 on the other side of the selector switch SW21 are connected to each other by signal lines.

  In the branch / distributor having such a configuration, as shown in FIG. 3B, when the changeover switch SW21 is switched to the connection contact PA1 / PA2 side, the input signal is transmitted to the predetermined signal level by the two distributors DS21. The one divided signal is supplied and output as it is to the output terminal OUT21. The other distributed signal of the 2-distributor DS21 is equally divided into four signal levels by the 2-distributor DS22 and supplied to and output from the output terminals OUT22 to OUT25. That is, the signal having the signal level L1 × 1/2 is supplied to the output terminal OUT21 with respect to the signal level L1 of the input signal, and the signal levels L1 × 1/8 are respectively supplied to the output terminals OUT22 to OUT25. Thus, a four branch function is realized.

  On the other hand, when the selector switch SW21 is switched to the connection contact PB1 / PB2 side, the input signal is equally divided into four signal levels by the four distributor DS22 and supplied to and output from the output terminals OUT22 to OUT25. That is, the signal having the signal level L1 × 1/4 is supplied to the output terminals OUT22 to OUT25 with respect to the signal level L1 of the input signal, thereby realizing the 4-distribution function.

Therefore, according to the branch / distributor according to the present reference example, by setting the changeover switch SW21 arbitrarily, a single branch / distributor can be used to output four branches or four outputs of an input signal, that is, 4 A branch / 4 distribution function can be obtained.
In addition, it is possible to provide branch / distributors corresponding to the specifications of various branch points and distribution points for constructing a joint reception system, further reducing the types of equipment, sharing product specifications, and reducing product costs. Reduction can be achieved.

<Application example of branch / distributor>
Next, a joint reception system to which the branch / distributor shown in the first or second reference example described above is applied will be described with reference to the drawings.
FIG. 4 is a schematic configuration diagram illustrating a transmission path of the joint reception system to which the branching / distributing device shown in the reference example is applied.

  As shown in FIG. 4, the joint reception system 10 to which the branching / distributor shown in the above-mentioned reference example is applied is similar to that shown in the prior art (FIG. 12). A master antenna 11 that receives a broadcast signal, boosters 12a to 12d that amplify the received broadcast signal to a predetermined signal level, and a broadcast signal that is divided into a high signal level that serves as a trunk line and a plurality of low signal levels that serve as branch lines. Branches 13a to 13c, distributors 14a and 14b that equally divide the broadcast signal into predetermined signal levels and supply it to a plurality of branch lines, and provided for each dwelling unit, receive the transmitted broadcast signal and receive video And a receiving terminal 15 for outputting to the audio equipment.

  Here, the branch / distributor shown in each reference example is applied to each of the branching devices 13a to 13c and the distributors 14a and 14b provided in the transmission path. Specifically, for example, in the branch / distributor shown in the second reference example (see FIGS. 3A and 3B), the change-over switch SW21 is switched to the connection contact PA1 / PA2 side to make four branches. Since the function is realized and branch signals can be output to the output terminals OUT21 to OUT25, the branch / distributor shown in each of the above-described reference examples can be favorably applied to the installation locations of the branchers 13a to 13c. . Further, by switching the selector switch SW21 to the connection contact PB1 / PB2 side, a 4-distribution function is realized and a distribution signal can be output to the output terminals OUT22 to OUT25. The branch / distributor shown in each reference example can be applied satisfactorily.

In this way, a single branch / distributor can be used by switching its function by operating the switch, so there is no need to prepare the branch and distributor separately as in the past, and the type of product can be reduced. It can be reduced and used in common, and the product cost can be reduced and the work efficiency of the installation work can be improved.
In this application example, the case of applying the branch / distributor shown in the second reference example as the configuration of the branch / distributor has been described. Needless to say, other configurations can also be applied satisfactorily.

Next, a booster having a branch distribution function according to the present invention will be described with reference to the drawings.
<First Embodiment of Booster>
FIG. 5 is a schematic configuration diagram showing a first embodiment of a booster having a branch distribution function according to the present invention. Here, a booster to which the branch / distributor shown in the second reference example is applied will be described.

  As shown in FIG. 5, the booster having the branch distribution function according to the present embodiment is roughly divided into a booster function that demultiplexes an input broadcast signal and amplifies the signal to a predetermined signal level for each signal type. Unit BSTA, and a branch / distribution function unit SELA for switching between a branch output and a distribution output of the amplified broadcast signal.

  The booster function unit BSTA has, for example, an input terminal INa to which a mixed signal of VHF / UHF broadcast signals is input and an input terminal INb to which a signal of mixed VHF / UHF / BS / CS broadcast signals is input. And a demultiplexer MWa for demultiplexing a signal input to the input terminal INb into a VHF / UHF broadcast signal and a BS / CS broadcast signal, and a signal input to the input terminal INa, or demultiplexed by the demultiplexer MWa. A selector switch SWA for selecting one of the waved VHF / UHF broadcast signals, a duplexer MWb for demultiplexing the VHF / UHF broadcast signal selected by the selector switch SWA into a VHF broadcast signal and a UHF broadcast signal, VHF amplifier AMPv, UHF amplifier for amplifying VHF broadcast signal, UHF broadcast signal and BS / CS broadcast signal to predetermined signal levels, respectively MPu and BS / CS amplifiers AMPs, a synthesizer SYNa that synthesizes the amplified VHF broadcast signal and the UHF broadcast signal, and a BS / CS broadcast that is amplified with the VHF / UHF broadcast signal synthesized by the synthesizer SYNa And a synthesizer SYNb for synthesizing signals.

Although not shown, the VHF amplifying unit AMPv, the UHF amplifying unit AMPu, and the BS / CS amplifying unit AMPs are each provided with a gain control dial or the like for adjusting the signal amplification factor.
Here, the changeover switch SWA constitutes a first selection unit according to the present invention, and the VHF amplification unit AMPv, the UHF amplification unit AMPu, and the BS / CS amplification unit AMPs constitute a signal amplification unit according to the present invention. That is, the booster function unit BSTA constitutes a signal amplification function unit according to the present invention.

On the other hand, the branch / distribution function unit SELA has a configuration equivalent to that of the branch / distributor shown in the second reference example (see FIG. 3) described above, and outputs four branch signals to the output terminals OUT and OUT1 to OUT4. A selector switch SWB that selects one of a supply path (first signal processing path) and a path (second signal processing path) for supplying four distribution signals to the output terminals OUT1 to OUT4. It is configured.
Here, the changeover switch SWB constitutes a second selection unit according to the present invention, and the branch / distribution function unit SELA constitutes a branch / distribution function unit according to the present invention.

  In the booster having such a configuration, first, the booster function unit BSTA performs amplification processing on a desired signal type set by the changeover switch SWA among the mixed broadcast signals input to the input terminals INa and INb. Next, a signal is output in a desired output form set by the changeover switch SWB among the four branch outputs or the four distribution outputs by the branch / distribution function unit SELA in the subsequent stage.

Therefore, according to the booster having the branch distribution function according to the present embodiment, by arbitrarily setting the changeover switches SWA and SWB, any signal type of the mixed broadcast signals can be selected with a single booster. A signal amplification function for demultiplexing and amplification and a 4-branch / 4-distribution function for performing 4-branch processing or 4-distribution processing on the amplified broadcast signal can be realized simultaneously.
In addition, it is possible to reduce the types of equipment used to build a joint reception system, to share product specifications and reduce product costs, and to improve work efficiency of installation work and reduce work costs. . Details will be described later.

Here, the external structure of the booster having the branch distribution function according to the present embodiment will be described with reference to the drawings.
FIG. 6 is a schematic external view showing a specific example of a booster having a branch distribution function according to this embodiment. In addition, it demonstrates with reference to the schematic structure shown in FIG. 5 as needed.

  As shown in FIG. 6, the booster according to the present embodiment schematically supplies an upper case FRA housing the signal amplification function unit and branch distribution function unit shown in FIG. 5 and driving power to the signal amplification function unit. And a lower case FRB in which a power supply function unit is housed. Here, the upper case FRA and the lower case FRB are configured to have a laminated structure, and the signal amplification function unit, the branching distribution function unit, and the power supply function unit are mutually connected within the casing composed of the upper case FRA and the lower case FRB. Are electrically connected. Here, the upper case FRA constitutes a first casing according to the present invention, and the lower case FRB constitutes a second casing according to the present invention.

  Further, on different sides of the upper case FRA, an input terminal INa to which a VHF / UHF broadcast signal is input, an input terminal INb to which a VHF / UHF / BS / CS broadcast signal is input, and a four-branch signal or four distributions. The output terminals OUT and OUT1 to OUT4 from which signals are output are provided so as to protrude, and the upper surface of the upper case FRA (the upper surface with respect to the side surface, the front side of the drawing; hereinafter referred to as “front”) A changeover switch SWA for selecting a signal type of a broadcast signal input to the input terminals INa and INb, and a gain control dial GC attached to each of the VHF amplifier AMPv, UHF amplifier AMPu, and BS / CS amplifier AMPs. And a selector switch SWB for selecting either 4-branch output or 4-distributed output.

  According to the booster having such an external configuration, the booster function unit BSTA, the branching / distribution function unit SELA, and the power supply function unit are housed in a casing having a laminated structure, and are configured integrally. Since each functional unit is connected in advance inside, it is possible to realize a booster with a small branch distribution function, greatly reducing the installation space of the chassis, The number of connections between the input and output terminals can be reduced to greatly improve the work efficiency of installation work.

<Second Embodiment of Booster>
Next, a second embodiment of a booster having a branch distribution function according to the present invention will be described with reference to the drawings.
FIG. 7 is a schematic configuration diagram showing a second embodiment of a booster having a branch distribution function according to the present invention, and FIG. 8 is an operation state of a branch distribution function unit applied to the booster according to the present embodiment. FIG. 9 is a schematic external view showing a second embodiment of a booster having a branch distribution function according to this embodiment. In addition, about the structure equivalent to the reference example mentioned above and 1st Embodiment, the same code | symbol is attached | subjected and the description is simplified.

As shown in FIG. 7, the booster having a branch / distribution function according to the present embodiment is roughly divided into a booster function unit BSTB and a branch / distribution function unit SELB.
The booster function unit BSTB includes, for example, an input terminal INa to which a VHF broadcast signal is input, an input terminal INb to which a signal in which a VHF / UHF broadcast signal is mixed, and a VHF / UHF / BS / CS broadcast signal. The input terminal INc to which the mixed signal is input, the demultiplexer MWa that demultiplexes the signal input to the input terminal INc into the VHF / UHF broadcast signal and the BS / CS broadcast signal, and the input terminal INb. The switch SWA1 for selecting either the signal that has been split or the VHF / UHF broadcast signal that has been split by the duplexer MWa, the VHF / UHF broadcast signal that has been selected by the switch SWA1, the VHF broadcast signal and the UHF A demultiplexer MWb for demultiplexing into a broadcast signal, a VHF broadcast signal input to the input terminal INa, or a VH demultiplexed by the demultiplexer MWb A changeover switch SWA2 for selecting one of the broadcast signals, VHF amplifier portion AMPV, is configured to include a UHF amplifier unit AMPu and BS / CS amplifier unit AMPs, a combiner SYNa and combiner synB, the.
Here, the change-over switches SWA1 and SWA2 constitute a first selection unit according to the present invention.

On the other hand, the branch / distribution function unit SELB includes a changeover switch SWB11 to which the output signal of the booster function unit BSTB is supplied to the input contact Pin, and an output terminal OUT to which a signal applied to the output contact Pout of the changeover switch SWB11 is output. The signal applied to the switching contact PB1 on one side of the switching switch SWB11 is divided into two parts, the switching switch SWB12 supplied to the input contact Pin, and the signal applied to the switching contact PA1 on one side of the switching switch SWB12. One distributor signal is output to one side switching contact PA2 of the selector switch SWB12, and the other distributor signal is output to one side switching contact PB2 of the selector switch SWB11, and the output of the selector switch SWB12. A 4-distributor DS4 that divides the signal applied to the contact Pout into 4 and a distribution from the 4-distributor DS4. And individual output terminals OUT1 to OUT4 from which a distribution signal is output. Note that the switching contacts PA1 and PA2 on the other side of the switching switch SWB11 and the switching contacts PB1 and PB2 on the other side of the switching switch SWB12 are connected to each other by signal lines.
Here, the change-over switches SWB11 and SWB12 constitute second selection means according to the present invention.

  Here, the operation of the branch distribution function unit SELB applied to the present embodiment is as shown in FIG. 8, when the changeover switch SWB11 is switched to the connection contact PA1 / PA2 side, regardless of the setting state of the changeover switch SWB12. The input signal (the output signal of the booster function unit BSTB) is supplied and output as it is to the output terminal OUT. That is, a signal having an equivalent signal level L1 is supplied to the output terminal OUT with respect to the signal level L1 of the input signal, thereby realizing a through output function.

  On the other hand, when the changeover switch SWB11 is switched to the connection contact PB1 / PB2 side and the changeover switch SWB12 is switched to the connection contact PA1 / PA2 side, it is equally divided to a predetermined signal level by the two distributor DS3, The signal is supplied to and output from the output terminal OUT. The other distributed signal of the 2-distributor DS3 is further equally divided into a predetermined signal level by the 4-distributor DS4, and is supplied to and output from the output terminals OUT1 to OUT4. That is, with respect to the signal level L1 of the input signal, a signal having a signal level L1 × 1/2 is supplied to the output terminal OUT, and each of the output terminals OUT1 to OUT4 has a signal level L1 × 1/8. A signal is supplied, and a 4-branch function is realized.

  Further, when the changeover switch SWB11 is switched to the connection contact PB1 / PB2 side and the changeover switch SWB12 is switched to the connection contact PB1 / PB2 side, it is equally divided to a predetermined signal level by the four distributor DS4 and output terminal OUT1. ˜OUT4 is supplied and output. That is, with respect to the signal level L1 of the input signal, signals having a signal level L1 × 1/4 are respectively supplied to the output terminals OUT1 to OUT4, thereby realizing a 4-distribution function.

  That is, by arbitrarily switching and setting the selector switches SWB11 and SWB12, a path (third signal processing path) for supplying a through output (amplified signal) to the output terminal OUT, and the output terminals OUT and OUT1 to OUT4 are supplied. Either a path for supplying a 4-branch signal (first signal processing path) or a path for supplying 4-distributed signals to the output terminals OUT1 to OUT4 (second signal processing path) can be selected. A single branch / distributor can be provided with a function as a single booster in addition to a function as a branch / distributor of 4 branches / 4 distributions.

  And, as shown in FIG. 9, for example, as shown in FIG. 9, the booster having such a configuration has VHF broadcast signals, VHF / UHF broadcast signals, and VHF / UHF / BS / CS broadcast signals on different side surfaces of the casing. Input terminals INa to INc that are individually input and output terminals OUT and OUT1 to OUT4 that selectively output through outputs, four-branch signals, or four distribution signals are provided so as to protrude, and the input terminals are provided in front of the casing. Gain control dial GC attached to each of switches SWA1 and SWA2 for selecting a signal type of a broadcast signal input to INa to INc, and VHF amplifier AMPv, UHF amplifier AMPu, and BS / CS amplifier AMPs And a selector switch SWB11 for selecting one of the through output, the 4-branch output and the 4-distributed output, WB12 is located.

  In the booster having such a configuration, amplification processing is performed on a desired signal type set by the changeover switches SWA1 and SWA2 among the broadcast signals input to the input terminals INa to INc by the booster function unit BSTB. As described above, the branch / distribution function unit SELB in the subsequent stage outputs a signal in a desired output form set by the changeover switches SWB11 and SWB12 among the through output, the four branch output, or the four distribution outputs.

Therefore, according to the booster having the branch distribution function according to the present embodiment, any one of the mixed broadcast signals can be selected from a single booster by arbitrarily setting the changeover switches SWA1, SWA2, SWB11, and SWB12. A signal amplifying function for demultiplexing and amplifying these signal types and a function for performing through output processing, 4-branching processing, or 4-distribution processing on the amplified broadcast signal can be realized at the same time.
Therefore, compared to the configuration shown in the first embodiment described above, it can be applied not only to the installation location where the booster and the branching device or the distributor are installed close to each other, but also to the booster alone. It is possible to further reduce the types of equipment for constructing the receiving system, to make the product specifications common, to reduce the product cost, and to reduce the installation space.

<Third embodiment of the booster>
Next, a third embodiment of a booster having a branch distribution function according to the present invention will be described with reference to the drawings.
FIG. 10: is a schematic block diagram which shows the branch distribution function part applied to 3rd Embodiment of the booster provided with the branch distribution function based on this invention, and the table which shows the operation state. Here, about the structure equivalent to each embodiment mentioned above, the same code | symbol is attached | subjected and the description is simplified.
In the present embodiment, similarly to the second embodiment described above, a through output function that directly outputs an input signal (that is, an output signal of the booster function unit BSTB) and a 2-branch / 2 distribution function are provided.

Specifically, as shown in FIG. 10A, the branch / distribution function unit SELC applied to this embodiment includes a booster function unit BSTC having the same configuration as that of the first or second embodiment described above. Switch SWB21 supplied to the input contact Pin, output terminal OUT to which the signal applied to the output contact Pout of the switch SWB21 is output, and applied to the switch contact PB1 on one side of the switch SWB21. The divided signal is supplied to the input contact Pin, and the signal applied to the switching contact PA1 on one side of the switching switch SWB22 is divided into two, and one distribution signal is switched to one side of the switching switch SWB22. 2-distributor DS5 that outputs to the contact PA2 and outputs the other distribution signal to the switching contact PB2 on one side of the switch SWB21 And a two-distributor DS6 that divides the signal applied to the output contact Pout of the changeover switch SWB22 into two, and individual output terminals OUT11 and OUT12 from which a distribution signal from the two-distributor DS6 is output. ing. Note that the switching contacts PA1 and PA2 on the other side of the switching switch SWB21 and the switching contacts PB1 and PB2 on the other side of the switching switch SWB22 are connected to each other by signal lines.
Here, the change-over switches SWB21 and SWB22 constitute second selection means according to the present invention.

  Here, the operation of the branch / distribution function unit SELC applied to the present embodiment is as shown in FIG. 10B, when the changeover switch SWB21 is switched to the connection contact PA1 / PA2 side, the setting state of the changeover switch SWB22. Regardless, the input signal is supplied and output to the output terminal OUT as it is. That is, a signal having the same signal level L1 is supplied to the output terminal OUT with respect to the signal level L1 of the input signal, and the amplified output of the booster function unit BSTC is output to the output terminal OUT as it is. Through output function is realized.

  Therefore, the path for supplying the through output from the booster function unit BSTC to the output terminal OUT via the changeover switch SWB21 when the changeover switch SWB21 is set to be switched to the connection contact PA1 / PA2 side is the third aspect of the present invention. Configure the signal processing path.

  On the other hand, when the changeover switch SWB21 is switched to the connection contact PB1 / PB2 side and the changeover switch SWB22 is switched to the connection contact PA1 / PA2 side, it is equally divided into a predetermined signal level by the two distributor DS5, The signal is supplied to and output from the output terminal OUT. The other distributed signal of the 2-distributor DS5 is further equally divided to a predetermined signal level by the 2-distributor DS6, and is supplied to and output from the output terminals OUT11 and OUT12. That is, with respect to the signal level L1 of the input signal, a signal having a signal level L1 × 1/2 is supplied to the output terminal OUT, and each of the output terminals OUT11 and OUT12 has a signal level L1 × 1/4. A signal is supplied, and a two-branch function is realized.

  Further, when the changeover switch SWB21 is switched to the connection contact PB1 / PB2 side and the changeover switch SWB22 is switched to the connection contact PB1 / PB2 side, it is equally divided into a predetermined signal level by the two distributor DS6 and output terminal OUT11. And are supplied to and output from OUT12. That is, with respect to the signal level L1 of the input signal, a signal having a signal level L1 × 1/2 is supplied to the output terminals OUT11 and OUT12, thereby realizing a 2-distribution function.

Therefore, according to the booster having the branch distribution function according to the present embodiment, by setting the changeover switches SWB21 and SWB22 of the branch distribution function unit SELC arbitrarily, through output of the amplified output from the booster function unit BSTC, A 2-branch output or a 2-distributed output can be obtained.
In addition, it is possible to reduce the types of devices for constructing the joint reception system, to share the product specifications and to reduce the product cost, and to greatly improve the work efficiency of the installation work.

  The configuration of the booster having the branch distribution function shown in each embodiment described above is merely an example for realizing the switching setting of the signal amplification function, the branch, the distribution function, and the through output function, Needless to say, the booster having the branch distribution function according to the present invention is not limited to this.

<Application example of booster with branch / distribution function>
Next, a joint reception system to which the booster having the branch distribution function described in the first to third embodiments is applied will be described with reference to the drawings.
FIG. 11 is a schematic configuration diagram showing a transmission path of a joint reception system to which a booster having a branch distribution function according to the present invention is applied. In addition, about the structure equivalent to embodiment mentioned above, the same code | symbol is attached | subjected and the description is simplified.

  As shown in FIG. 11, the joint reception system 10 to which the booster having the branch distribution function according to the present invention is applied is the same as that shown in the application example (FIG. 4) described above. An antenna 11, boosters 12a to 12d for amplifying the received broadcast signal, branching devices 13a to 13c for dividing the broadcast signal into a high signal level serving as a main line and a plurality of low signal levels serving as branch lines, and a predetermined broadcast signal Distributors 14a and 14b that equally divide the signal level into a plurality of branch lines and a receiving terminal 15 that is provided for each dwelling unit and that receives the transmitted broadcast signal and outputs it to the audiovisual equipment. Configured.

  Here, a combination of a booster and a branching device provided in the transmission path (that is, a booster 12a and a branching device 13a, a booster 12b and a branching device 13d), a combination of a booster and a distributor (that is, a booster 12b and a distributor 14a), Or the booster provided with the branch distribution function shown in each embodiment mentioned above is applied to each booster (ie, boosters 12b, 12c, 12d).

  Specifically, for example, in the booster (see FIG. 7) shown in the second embodiment, as shown in FIG. 8, the switch SWB11 of the branch / distribution function unit SELB is switched to the connection contact PA1 / PA2 side. As a result, the amplified signal from the booster function unit BSTB is output through and supplied to the output terminal OUT. Therefore, the booster having the branch distribution function of the present invention is installed at the locations where the boosters 12b, 12c, and 12d in FIG. Can be applied well.

  Further, by switching the changeover switch SWB11 to the connection contact PB1 / PB2 side and switching the changeover switch SWB12 to the connection contact PA1 / PA2 side, a 4-branch function is realized, and the branch signal of the amplified signal from the booster function unit BSTB Are supplied to the output terminals OUT and OUT1 to OUT4. Therefore, the branch distribution function of the present invention is provided at the location where the combination CNVa of the booster 12a and the branching device 13a and the combination CNVc of the booster 12b and the branching device 13d in FIG. The provided booster can be satisfactorily applied.

  Furthermore, by switching the changeover switch SWB11 to the connection contact PB1 / PB2 side and the changeover switch SWB12 to the connection contact PB1 / PB2 side, a four distribution function is realized, and the distribution signal of the amplified signal from the booster function unit BSTB is Since the voltage is supplied to the output terminals OUT1 to OUT4, the booster having the branch distribution function of the present invention can be favorably applied to the place where the combination CNVb of the booster 12b and the distributor 14a in FIG. 11 is installed.

In this way, a booster having a single housing and having a branch / distribution function can be used by switching the function by switch operation. Therefore, it is possible to reduce the types of products to be shared, reduce product costs, and improve the work efficiency of installation work.
In addition, in this application example, the case where the one shown in the second embodiment is applied as the configuration of the booster having the branch distribution function has been described, but the configuration in which the other embodiments described above are combined, It goes without saying that other configurations can also be applied satisfactorily.

  As described above, according to the present invention, the first selection unit that selects a transmission signal of a desired signal type, the signal amplification unit that amplifies the selected transmission signal to a desired signal level, and the amplified signal are amplified. A first signal processing path for dividing the transmitted signal into a predetermined number of branch signals, a second signal processing path for dividing the amplified transmission signal into a predetermined number of distribution signals, and a first signal processing path or And a second selection means for selecting and setting any one of the two signal processing paths, so that a single branch distribution function can be realized by arbitrarily switching the first and second selection means. A booster equipped to simultaneously realize a signal amplification function that demultiplexes and amplifies an arbitrary signal type from a mixed transmission signal and a branch / distribution function that branches or distributes the amplified transmission signal to an arbitrary number of signals. be able to.

  In particular, according to the present invention, an output terminal group composed of a plurality of output terminals is provided in common in the subsequent stage of the first signal processing path and the second signal processing path. It is possible to realize a booster having a small branch distribution function.

Further, according to the present invention, the input terminal and the output terminal group are provided on different side surfaces of the casing that houses the booster, and the first selection unit is arranged on the front surface of the casing near the input terminal, Since the 2nd selection means is arranged in the front of the case near the output terminal, the input terminal and the output terminal group can be clearly identified, and the transmission cable can be easily connected. Furthermore, according to the present invention, since the first and second selection means are respectively disposed on the surface of the casing in the vicinity of the input terminal and the output terminal group, the transmission signal input via the input terminal and The signal processing path can be easily selected and set.
Therefore, according to the present invention, it is possible to reduce the types of devices for constructing the joint reception system, to make the product specifications common, to reduce the product cost, and to improve the installation work efficiency and the construction cost. Can be reduced.

According to the present invention, the signal amplifying function unit and the branching / distributing function unit are housed in the first housing, which is the housing, and the power supply function unit is housed in the second housing. Since the two casings have a laminated structure and are assembled together, the booster with the branch distribution function can be reduced in size, and the installation space for the equipment can be greatly reduced. The work efficiency of installation work can be greatly improved by reducing the number of installations and the number of connections between input and output terminals.
Therefore, according to the present invention, it is possible to further reduce the types of devices for constructing the joint reception system, to make the product specifications common, to reduce the product cost, and to improve the work efficiency of the installation work and the construction work. Cost reduction can be further promoted.

  Further, according to the present invention, in addition to the branch / distribution function, the third signal processing path for passing and outputting the transmission signal as it is as a through output is provided, so that the booster having a single branch / distribution function can be used in various ways. A simple signal processing function can be realized. Therefore, according to the present invention, it can be applied not only to the installation location where the booster and the branching device or the distributor are installed close to each other, but also to the booster alone, and the types of devices for constructing the joint reception system The product specifications can be shared, product costs can be reduced, and installation space can be reduced.

SW11, SW21, SW22, SWA, SWA1, SWA2, SWB, SWB11, SWB12, SWB21, SWB22 selector switch DS11, DS21, DS22, DS1 to DS6 Distributor IN, INa, INb, INc Input terminal AMPv VHF amplifier AMPu UHF amplifier Section AMPs BS / CS amplification section BSTA, BSTB, BSTC Booster function section SELA, SELB, SELC Branch / distribution function section 10 Joint reception system 11 Master antenna 12a-12d Booster 13a-13d Brancher 14a, 14b Distributor 15 Reception terminal

Claims (5)

First selection means for selecting a desired transmission signal among transmission signals of one or a plurality of different signal types input via an input terminal;
A signal amplifying unit for amplifying the selected transmission signal to a desired signal level;
A first signal processing path for generating a predetermined number of branch signals based on the transmission signal amplified by the signal amplification unit;
A second signal processing path for generating a predetermined number of distribution signals based on the amplified transmission signal;
A second selection means for selecting and setting at least one of the first signal processing path and the second signal processing path;
An output terminal group that is provided in a subsequent stage of the first signal processing path and the second signal processing path and outputs the branch signal or the distribution signal;
With
The input terminal and the output terminal group are provided on different side surfaces of the housing, and the first selection unit is disposed on the front surface of the housing in the vicinity of the input terminal, and the vicinity of the output terminal group. A booster having a branch distribution function, wherein the second selection means is arranged in front of the housing. At least a signal amplification function unit including the first selection unit and the signal amplification unit, the first signal processing path, the second signal processing path, the second selection unit, and the output terminal group. A first housing having a predetermined shape and a branch distribution function unit;
A second housing having at least a power supply function unit for supplying a predetermined drive power to the signal amplification function unit, and having a shape substantially equivalent to the first housing;
Comprising
The housing is the first housing,
The input terminal and the output terminal group are provided on different side surfaces of the first housing, and the first selection unit is disposed on the front surface of the first housing near the input terminal. 2. The booster having a branch distribution function according to claim 1, wherein the second selection means is disposed in front of the first casing in the vicinity of the output terminal group.   3. The first housing and the second housing are arranged in a stacked structure with the first housing as an upper stage and the second housing as a lower stage, respectively. Booster with branch distribution function. The output terminal group includes a first output terminal group composed of a plurality of output terminals, and a single second output terminal,
4. The branch signal according to claim 1, wherein the branch signal is output from the first output terminal group and the second output terminal, and the distribution signal is output from the first output terminal group. Booster with the branch distribution function described in 1. A third signal processing path for directly passing the amplified transmission signal as a through output;
The second output terminal is provided at a subsequent stage of the third signal processing path, and the through output is output from the second output terminal by selectively setting the second selection unit. A booster having a branch distribution function according to claim 4.

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