JPH0427253Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention is useful for distributing and supplying received signals received by one antenna to each television receiver, for example in a home with multiple television receivers. This invention relates to a received signal amplification divider used.

[Prior Art and Its Disadvantages] Generally, a receiving system using a plurality of television receivers with one receiving antenna is configured as shown in FIG. 5, for example. That is, roof 1
A received signal received by a receiving antenna 12 installed at 1 is amplified via an amplifier 13, and the unattenuated received signal is distributed and supplied to each television receiver 15a to 15c via a distributor 14 installed indoors. It is structured as follows.

However, in the above-mentioned configuration in which the amplifier 13 is installed directly under the antenna 12 on the roof 11 and the distributor 14 is installed indoors, the installation work becomes redundant and troublesome, and maintenance is also difficult. There are drawbacks.

[Purpose of the invention] This invention was created in view of the above-mentioned problems, and even when the received signal received by a single antenna is distributed and supplied to multiple television receivers, the amplifier and distribution It is an object of the present invention to provide a received signal amplifying/distributing device that can simplify installation work and improve maintainability without the need to install devices individually.

[Key points of the invention] In other words, the received signal amplification/distributor according to this invention has a received signal amplifier and a signal divider integrated by directly connecting their output terminals and input terminals, and distributes and supplies the received signal to one location. It was designed to be carried out at

[Embodiment of the invention] An embodiment of the invention will be described below with reference to the drawings.

FIG. 1 shows its configuration. This received signal amplification divider consists of a received signal amplifier 21 and a signal divider 2.
It consists of 2. Here, 23 is a received signal input terminal, 24 is an amplifier circuit, 25a is an amplified signal output terminal, 26 is an amplified signal input terminal, 27a to 27c
is a signal distribution output terminal, and signal distribution output terminal 2
Only the distributed output from 7c is supplied again to the received signal amplifier 21 via the terminal 25b, and is output as is from the power supply input terminal 28. In this case, the terminals 25a, 25b on the amplifier 21 side and the terminals 26, 27c on the distributor 22 side are configured using, for example, a plug jack or the like so that they can be directly connected integrally. Note that the received signal input terminal 23 and power input terminal 2 of the received signal amplifier 21
8, the amplified signal input terminal 26 and signal distribution output terminals 27a to 27c of the signal distributor 22 are all convex terminals made of similar F-type plugs, and the amplified signal output of the received signal amplifier 21 is The terminals 25a and 25b are both recessed terminals that can be directly connected to the convex terminals made of the F-type plugs. FIG. 2 shows the circuit configuration inside the received signal amplifier 21 in FIG. The voltage stabilized by the internal power supply 29 is used as the power supply voltage of the amplifier circuit 24.

Further, FIG. 3 shows the external configuration of the received signal amplification divider in this embodiment, and as shown in FIGS. 1 and 2 above, the mutual terminals 25
The received signal amplifier 21 and the signal distributor 22, which are directly connected and integrated by a, 26 and 25b, 27c, are completely integrated by an amplification/distribution case 30. Here, 31 is a display window for viewing the standard display label on the side of the distributor 22, 32 is a hook for fixing the distributor, and 33 is a screw hole for installing the case.

Next, the operation of the received signal amplification divider configured as described above will be explained with reference to FIG. 4.

That is, for example, in order to distribute and supply a received signal from one receiving antenna 12 installed on the roof 11 to three television receivers 15a to 15c in a general household, the signal from the receiving antenna 12 must first be received. The signal is supplied to the signal input terminal 23, and the distributed outputs from the signal distribution output terminals 27a and 27b are supplied to the television receivers 15a and 15b, respectively. On the other hand, the distribution signal from the distribution signal output terminal 27c of the signal distributor 22, which is output from the power supply input terminal 28, is supplied to the television receiver 15c. At the same time, the signal cable connected to the television receiver 15c is supplied with, for example, a household alternating current voltage AC reduced to a constant voltage, and sent to the power input terminal 28 as an amplifier power source. The AC low voltage sent to the power input terminal 28 of this amplifier 21 is
It comes to be supplied to the internal power supply 29 via the coil L. As a result, the received signal supplied from the receiving antenna 12 is transmitted to the amplifier circuit 2 of this amplification divider.
1, each distribution signal output terminal 2
Each TV receiver 15a-15c from 7a-27c
will be distributed and supplied to in this case,
Since the received distribution signal outputted from the distribution signal output terminal 27c is generally a high frequency in MHz units, it is not supplied to the internal power supply 29 via the coil L. Conversely, the alternating current voltage AC supplied from the power input terminal 28 via the signal cable on the TV receiver 15c side is all supplied to the internal power supply 29 via the coil L, so it does not reach the distributor 22 side. There is no danger of reaching it.

Therefore, if the received signal amplification/distributor configured in this manner is used, the amplifier 13 and the distributor 14 can be installed individually on the roof 11 and indoors, respectively, as shown in the conventional example in FIG. Since there is no need to do so, the installation work can be greatly simplified, and since the signal distributor 22 can be attached to and detached from the received signal amplifier 21 as appropriate using input/output terminals with a plug jack configuration, ease of maintenance is also improved. You can.

[Effects of the invention] As described above, according to this invention, the received signal amplifier and the signal distributor are integrally configured by directly connecting their output terminals and input terminals, and the distribution and supply of the received signal is divided into one unit.
Since this is done at each location, even when the received signal received by a single antenna is distributed and supplied to multiple television receivers, there is no need to install amplifiers and distributors individually, and the installation work is simple. Accordingly, it is possible to provide a received signal amplification/distributor that can simplify the process and improve maintainability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a received signal amplification/distributor according to an embodiment of the invention, FIG. 2 is a block diagram showing the internal circuit of the amplifier of the received signal amplification/distributor in FIG. 1, and FIG. FIG. 4 is a diagram showing a television receiving system using the received signal amplifying and distributing device, and FIG. 5 is a diagram showing a conventional television receiving system. 12...Reception antenna, 15a-15c...TV receiver, 21...Reception signal amplifier, 22...
Signal distributor, 23... Received signal input terminal, 24...
...Amplification circuit, 25a...Amplified signal output terminal, 26
...Amplified signal input terminal, 27a to 27c...Signal distribution output terminal, 30...Amplification distribution case.

Claims (1)

[Claims for Utility Model Registration] One convex input terminal and a plurality of convex output terminals are integrally provided at different positions on the side surface of the housing, and a received signal inputted through the convex input terminal is transmitted to the above-mentioned one. A signal distributor that distributes and outputs signals from a plurality of convex output terminals, and a concave output terminal that is removably directly connected to the convex input terminal of this signal distributor are integrated on the side of the housing, and a receiving antenna is provided. and a received signal amplifier that inputs and amplifies the received signal received by the antenna and outputs it from the recessed output terminal, and is characterized in that the received signal received by the receiving antenna is distributed and supplied at one location. Received signal amplification divider.