JP4414167B2 - TV reception system - Google Patents

Description

The present invention is installed on a wall surface or the like, the television signal coming from the antenna or the like, relates to lutein Levi receiving system to be received by sending to the receiver such as a television receiver via a television signal line connected .

  One of the features of digital broadcasting is the bidirectional function, which uses telephone signals to realize it, and broadcast receivers connect the telephone line to a receiver together with a television signal line such as a coaxial cable. It was realized. As described above, although the function of digital broadcasting is improved, there is a problem that wiring becomes complicated. Therefore, as a solution to this problem, there has been proposed a form in which a telephone signal as shown in Patent Document 1 or Patent Document 2 is superimposed on a television signal.

Japanese Patent Laid-Open No. 10-215206 Japanese Patent Laid-Open No. 10-224699

  However, since the techniques of the above-mentioned patent documents all superimpose the telephone signal in the middle of the cable for transmitting the television signal when the telephone signal is superimposed on the television signal, the construction for superimposing, that is, the telephone line is not provided. The construction to connect to the TV signal line is troublesome, and it was difficult to construct unless it was an operator with specialized knowledge.

An object of the present invention, the construction of superimposing the telephone signals to the television signal line for transmitting a television signal can be performed easily, and to provide a viable television receiving systems at the user himself.

In order to solve the above-mentioned problems, the invention of claim 1 includes a distributor that receives and distributes a received television broadcast signal, and a plurality of television terminal devices that output the signal distributed by the distributor. In the television receiving system, the distributor has a television input terminal for inputting a television signal and a plurality of television output terminals for outputting the television signal and relaying a telephone signal, and the television input terminal is a distribution circuit. And the TV output terminals are connected via a telephone separation / mixing circuit for separating or mixing telephone signals so that telephone signals are not superimposed on the television input terminals. The ground conductor of the input terminal and the ground conductor of the TV output terminal are connected via a filter circuit that prevents the television signal from passing through and prevents the telephone signal from passing through. The plurality of television terminal devices include one television input terminal for inputting a television signal, one television output terminal for outputting a television signal input from the television input terminal, and one for connecting a telephone line. A telephone terminal, and both the television input terminal and the television output terminal are connected to the telephone terminal via a telephone signal superimposing circuit for superimposing a telephone signal, and any one telephone of the television terminal device By connecting a telephone line to a terminal, a telephone signal from the telephone line can be superimposed on a plurality of television terminal apparatus television output terminals.
With this configuration, it is possible to superimpose a telephone signal on the TV output terminals of all TV terminal devices by simply connecting a telephone line to one TV terminal device.

According to a second aspect of the present invention, there is provided a television receiving system including: a distributor that receives and distributes a received television broadcast signal; and a plurality of television terminal devices that output the signal distributed by the distributor. The distributor has a television input terminal for inputting a television signal and a plurality of television output terminals for outputting the television signal and relaying a telephone signal, and the television input terminal is connected to each television output terminal via a distribution circuit. And the TV output terminals are connected via a telephone separation / mixing circuit that separates or mixes the telephone signals so that telephone signals are not superimposed on the television input terminals, and further, a ground conductor of the television input terminal, The plurality of television terminals are connected to a ground conductor of a television output terminal through a filter circuit that blocks the passage of a television signal through which a television signal passes. The device includes one TV input terminal for inputting a TV signal, one TV output terminal for outputting a TV signal input from the TV input terminal, and two telephone terminals for connecting a telephone line. Either the TV input terminal or the TV output terminal is connected to a telephone terminal via a telephone signal superimposing circuit for superimposing a telephone signal, and the telephone terminals are connected to each other. By connecting a telephone line to one telephone terminal, the telephone signal from the telephone line can be superimposed on the television output terminals of a plurality of television terminal devices.
With this configuration, it is possible to superimpose a telephone signal on the TV output terminals of all TV terminal devices by simply connecting a telephone line to one TV terminal device.

According to a third aspect of the present invention, there is provided a television receiving system comprising: a distributor that receives and distributes a received television broadcast signal; and a plurality of television terminal devices that output the signal distributed by the distributor. The distributor has a television input terminal for inputting a television signal and a plurality of television output terminals for outputting the television signal and relaying a telephone signal, and the television input terminal is connected to each television output terminal via a distribution circuit. And the TV output terminals are connected via a telephone separation / mixing circuit that separates or mixes the telephone signals so that telephone signals are not superimposed on the television input terminals, and further, a ground conductor of the television input terminal, The plurality of television terminals are connected to a ground conductor of a television output terminal through a filter circuit that blocks the passage of a television signal through which a television signal passes. The device includes one TV input terminal for inputting a TV signal, two TV output terminals for outputting a TV signal input from the TV input terminal, and two telephone terminals for connecting a telephone line. The TV input terminal and one of the TV output terminals are connected via a branch circuit, the branch circuit is connected to the other TV output terminal, and the telephone terminal and all TV signal input terminals and TV signal output terminals are telephones. Connected via a telephone signal superimposing circuit for superimposing signals and further connected to each other, and by connecting a telephone line to any one telephone terminal of the television terminal device, a plurality of television terminals A telephone signal from the telephone line can be superimposed on a television output terminal of the apparatus.
With this configuration, it is possible to superimpose a telephone signal on the TV output terminals of all TV terminal devices by simply connecting a telephone line to one TV terminal device.

According to a fourth aspect of the present invention, there is provided a television receiving system comprising: a distributor that receives and distributes at least one received television broadcast signal; and a plurality of television terminal devices that output signals distributed by the distributor. The distributor includes a television input terminal for inputting a television signal, a plurality of television output terminals for outputting the television signal, and the same number of telephone relay terminals as the television output terminal, and the television input terminal and the television The output terminal is connected via a distribution circuit for distributing a television signal, the telephone relay terminals are connected to each other, and the ground conductor of the television input terminal and the ground conductor of the television output terminal The plurality of television terminal devices are connected to each other through a filter circuit that blocks a telephone signal from passing therethrough. A television input terminal; a television output terminal for outputting a television signal input from the television input terminal; and a telephone terminal. The television output terminal and the telephone terminal are connected via a telephone signal superimposing circuit. The at least one television terminal device includes one television output terminal and two telephone terminals, and the telephone terminals are connected to each other, and each television terminal device and the distributor are connected by a television signal line. By connecting a telephone line and connecting a separate telephone line to the TV terminal device having the two telephone terminals, it is possible to superimpose telephone signals from the separately connected telephone lines on the TV output terminals of a plurality of television terminal apparatuses. It is characterized by that.
With this configuration, it is possible to superimpose a telephone signal on the TV output terminals of all TV terminal devices by simply connecting a telephone line to one TV terminal device.

According to a fifth aspect of the present invention, there is provided a television receiving system comprising: a distributor that inputs and distributes at least one received television broadcast signal; and a plurality of television terminal devices that output the signals distributed by the distributor. The distributor includes a television input terminal for inputting a television signal, a plurality of television output terminals for outputting the television signal, and the same number of telephone relay terminals as the television output terminal, and the television input terminal and the television The output terminal is connected via a distribution circuit for distributing a television signal, the telephone relay terminals are connected to each other, and the ground conductor of the television input terminal and the ground conductor of the television output terminal The plurality of television terminal devices are connected to each other through a filter circuit that blocks a telephone signal from passing therethrough. A television input terminal; a television output terminal for outputting a television signal input from the television input terminal; and a telephone terminal. The television output terminal and the telephone terminal are connected via a telephone signal superimposing circuit. At least one of the television terminal devices includes two television output terminals and three telephone terminals, and connects the television input terminal and one television output terminal via a branch circuit and outputs the branch output to the other. Connected to the TV output terminal, the TV output terminal to which the branch output is connected and the telephone terminal are connected via a telephone signal superimposing circuit, and the three telephone terminals are connected to each other. By connecting a TV signal line and a telephone line, and connecting a separate telephone line to the TV terminal device having the three telephone terminals, a television set of a plurality of TV terminal devices is provided. Characterized in that the telephone signals from the telephone line the separately connected to the force terminal and possible superposition.
With this configuration, it is possible to superimpose a telephone signal on the TV output terminals of all TV terminal devices by simply connecting a telephone line to one TV terminal device.

  The telephone signal superimposing circuit prevents the invasion of a television signal (for example, 90 to 2600 MHz) into the telephone line, and the telephone signal (for example, DC to 1.1 MHz) is transmitted to terminals other than the superimposed television terminal. It is a filter circuit that prevents intrusion. The telephone separation / mixing circuit is a filter circuit that superimposes a common telephone signal on a plurality of television output terminals and does not superimpose a telephone signal on a television input terminal, and each is composed of a coil and a capacitor.

As described above, according to the present invention , the telephone signal can be superimposed by connecting the telephone line to the television terminal device, so that the connection work is simple and the user himself / herself can connect.
And even if it is an existing television receiving system, a telephone signal can be superimposed on a television output terminal only by replacing | exchanging only a television terminal device, and all television terminal devices are only connected to one television terminal device. A telephone signal can be superimposed on the TV output terminal.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. Figure 1 shows a first embodiment of the television terminal device, (a) shows the circuit diagram shows a (b) is an external view. In the figure, reference numeral 1 denotes a TV input terminal to which a TV signal is input, and 2 denotes a TV output terminal to output the TV signal, both of which are formed as F-type coaxial cable connection terminals. Reference numeral 3 denotes a telephone terminal formed of a modular jack to which a telephone line is connected.

As shown in FIG. 1A, the telephone terminal 3 is composed of two terminals, a signal terminal 3a and a common terminal (ground conductor) 3b. The signal terminal 3a is a coil 4 which is a low-pass filter circuit that blocks passage of a television signal. Is connected to the TV output terminal 2 via the capacitor 5 and is connected to the common terminal via the capacitor 5. The common terminal 3b is connected to the ground conductor of the TV output terminal 2, and the ground conductor of the TV input terminal 1 is connected to the common terminal 3b via a capacitor 7 as a filter circuit that allows the television signal to pass and does not allow the telephone signal to pass. Has been.
The TV input terminal 1 and the TV output terminal 2 are connected via a capacitor 8 serving as a high-pass filter circuit that blocks the passage of telephone signals, and the input TV signal is output from the TV output terminal, and the telephone The signal is prevented from being superimposed on the TV input terminal 1.
Thus, a telephone signal superimposing circuit is constituted by the coil 4 and the capacitor 8, and a TV signal is output from the TV output terminal 2 by connecting the telephone terminal 3 and the TV output terminal 2 by the telephone line superimposing circuit. At the same time, a telephone signal is superimposed. The telephone signal is not superimposed on the TV input terminal 1.

  As shown in FIG. 1B, the television input terminal 1 and the television output terminal 2 are provided on different surfaces of the case, and the telephone terminal 3 is provided on the same surface as the television output terminal 2. With this arrangement, when installed on a wall or equipment, it can be installed so that the TV output terminal 2 and the telephone terminal 3 are exposed, and the coaxial cable and telephone line as a TV signal line can be easily attached and detached. it can. For example, all terminals may be provided on the same surface of the case, and may be determined according to the installation location and the purpose of use. Reference numeral 10 denotes a locking protrusion for locking when assembled to a wall surface box or the like, and 11 denotes a screw hole for fixing the case 6.

By forming in this way, the telephone signal is superimposed on the TV terminal that outputs the TV signal, so the TV signal line that transmits the TV signal is connected between the TV terminal device and the receiver, so that the bidirectional function can be achieved. Can be provided. The telephone signal can be superimposed by connecting the telephone line to the television terminal device, so that the connection work is simple and the user can connect. In addition, a telephone signal can be superimposed on the television output terminal with a minimum of members.
Moreover, the telephone terminal is formed of a modular jack, so that the existing telephone terminal and the telephone terminal of the present apparatus can be connected with one touch. Therefore, it can be easily connected without using a tool or the like, and even an inexperienced user can easily connect.
Furthermore, since only the TV terminal device connected to the telephone line has a telephone signal superimposed on the TV input terminal, the telephone signal can be superimposed on those terminals even if the television signal line is connected to another TV terminal apparatus. There is no.
Also, since the ground conductor of the TV input terminal and the ground conductor of the telephone terminal are not directly connected, the telephone signal does not leak through the ground to the TV signal transmission device connected upstream from the TV terminal device, and high isolation is achieved. The television terminal device can be used as a duplexer that separates the telephone line from the television signal line on which the telephone signal is superimposed.

FIG. 2 is an external view showing another example of a television terminal device having the same circuit as that in FIG. Moreover, FIG. 3 shows the state which mounted | wore the existing wall surface fixture 12 used when attaching to a wall surface box, (a) is a front view, (b) is AA sectional view explanatory drawing.
In FIG. 2, the upper surface in the figure is the front, the TV output terminal 2 is provided in the front of the case, and the TV input terminal 1 and the telephone terminal 3 are provided in the lower surface in front of the figure. And the latching claw 13 which latches to the wall surface fixture 12 protrudes in the right and left side surface of case 6, and it is formed so that it can assemble | attach to a wall surface box (not shown) using the existing wall surface fixture 12, and is easy. The shape can be attached to the wall.
Then, by fitting the television terminal device to the wall surface fixture 12 from the rear, the locking claw 13 is locked to the locking portion 12a of the wall surface fixture 12, and can be assembled as shown in FIG.

By forming the case in this way, the television terminal device can be easily installed on the wall surface, and the telephone line wiring to the television terminal device is not exposed, and the appearance can be improved. Then, by simply connecting a television signal line to the exposed television output terminal, the receiving device can receive the television signal and send / receive a telephone signal.
The wall fixture 12 can also be formed integrally with the case 6 of the television terminal device as shown in FIG. 9, so that the members for mounting on the wall can be reduced and the installation work is easy. Become.

4A and 4B show a second embodiment of the television terminal device, where FIG. 4A is a circuit diagram, and FIG. 4B is an external view. The difference from FIG. 1 is that a telephone signal is also superimposed on the TV input terminal. The same components as those in FIG. As shown in FIG. 4A, in addition to the television output terminal 2, the television input terminal 1 is also connected to the telephone terminal 3 via a telephone signal superimposing circuit comprising a coil 4 and a capacitor 8. However, the capacitor 8 is a common filter circuit.
Further, the television input / output terminals are connected so that a television signal can pass therethrough, and the appearance is the same as the configuration of FIG. 1, but the telephone terminal 3 is formed on the same surface as the television input terminal 1.
Thus, in addition to the TV output terminal, the telephone signal is also superimposed on the TV input terminal, so that the telephone signal is also superimposed on another TV terminal device via the TV signal line connected to the TV input terminal. This eliminates the need to connect a telephone line to each TV terminal.

5A and 5B show a third embodiment of a television terminal device, where FIG. 5A is a circuit diagram and FIG. 5B is an external view. Here, in addition to a pair of television terminals, telephone terminals that can be used for relaying telephone signals are provided, and two telephone terminals are provided. In addition, the same code | symbol is provided to the component same as FIG. 1, and description is abbreviate | omitted.
As shown in FIG. 5 (a), in addition to the TV output terminal 2, the TV input terminal 1 is also connected to the telephone terminal 3 via a telephone signal superimposing circuit comprising a coil 4 and a capacitor 8. The TV signal is connected so that it can pass through. The telephone terminals 3 and 3 are directly connected to each other, and one can be used as a relay terminal.
In addition, as shown in FIG. 5B, the two telephone terminals 3 and 3 are provided side by side on the surface where the TV output terminal 2 is provided, and the TV output terminal 2 and the telephone terminal 3 can be connected from one side. ing.

In this way, by superimposing the telephone signal on the TV input terminal, it becomes possible to superimpose the telephone signal on the TV terminal of another TV terminal device, and since it has a telephone relay terminal, only the telephone line is pulled out. be able to. Further, the two telephone terminals are provided on the front surface exposed when the apparatus is installed on a wall surface or the like, so that the attachment / detachment operation is easy.
Note that the telephone signal may be superimposed only on the TV output terminal, or one telephone terminal may be arranged on the side surface provided with the TV input terminal instead of the front surface.

FIG. 6 shows a fourth embodiment of the television terminal device. Here, all three TV terminals are provided, two telephone terminals are provided, relay terminals are provided on both the TV terminal and the telephone terminal, and a switch for preventing the telephone signal from being superimposed on the TV output terminal is provided. Yes. In addition, the same code | symbol is provided to the component same as FIG. 1, and description is abbreviate | omitted.
As shown in FIG. 6A, the TV input terminal 1 and one TV output terminal 2b as a relay terminal are connected via a branch circuit 15, and the branch output 15a of the branch circuit 15 is connected to the other TV output terminal. 2a. The two telephone terminals 3 and 3 are connected to each other, and the telephone terminal 3 and the television terminals 1, 2 a and 2 b are connected to each other via a telephone signal superimposing circuit comprising a coil 4 and a capacitor 8. A switch 16 is provided at one end of the coil 4 interposed between the telephone terminal 3 and the television output terminal 2 so that the telephone signal superimposing circuit can be disconnected.
As shown in FIG. 6B, the case 6 is provided at a position where the TV output terminal 2b as a TV relay terminal faces the TV input terminal 1, and the TV output terminal 2a is provided between the two. For example, the TV input terminal 1 and the TV relay terminal 2b are arranged at both upper and lower ends of the case 6, and the TV output terminal 2a and the two telephone terminals 3 and 3 are arranged on the front surface of the case. The switch 16 is disposed adjacent to the same surface as the television output terminal 2a.

Thus, if two television output terminals are provided, one can be used as a relay terminal, and a plurality of television terminal devices can be easily connected. Since telephone signals are superimposed on all television terminals, it is possible to superimpose telephone signals on television terminals of other connected television terminal devices. Further, since the telephone relay terminal is provided, only the telephone line can be drawn out, and the two telephone terminals are provided on the front surface exposed when the apparatus is installed on a wall surface or the like, so that the telephone line can be easily attached and detached.
Furthermore, when connecting to a receiver that does not require connection with a telephone line, it is only necessary to turn off the switch, without cutting the telephone signal superimposed on other TV terminal devices, and without using a duplexer. You can cancel the superimposition of telephone signals.

FIG. 7 shows a fifth embodiment of the television terminal device, where (a) is a circuit diagram and (b) is an external view. Here, the telephone signal is superimposed only on the TV output terminal, and two telephone terminals are provided. In addition, the same code | symbol is provided to the component same as FIG. 1, and description is abbreviate | omitted.
As shown in FIG. 7A, the two telephone terminals 3 and 3 are connected to each other, and the telephone terminal 3 and the television output terminal 2 are connected to each other by a telephone signal superposition circuit including a coil 4 and a capacitor 8. As shown in FIG. 7B, one telephone terminal 3 is provided adjacent to the television input terminal 1, and the other telephone terminal 3 is provided opposite to the case 6.
By forming in this way, only the television terminal device connected to the telephone line can superimpose the telephone signal on the television output terminal, and the telephone signal does not leak to other television terminal devices connected by the television signal line. In addition, since the telephone relay terminal is provided, only the telephone signal can be easily extracted.

FIG. 8 shows a sixth embodiment of a television terminal device, where (a) is a circuit diagram and (b) is an external view. Here, three television terminals are provided, and three telephone terminals are provided in the same number as the television terminals, and relay terminals are provided on both the television terminals and the telephone terminals. In addition, the same code | symbol is provided to the component same as FIG. 1, and description is abbreviate | omitted.
As shown in FIG. 8A, the TV input terminal 1 and one TV output terminal 2b as a relay terminal are connected via a branch circuit 15, and the branch output 15a of the branch circuit 15 is connected to the other TV output terminal. 2a. Further, the three telephone terminals 3 are connected to each other, and only the TV output terminal 2 a is connected via a telephone signal superposing circuit including the telephone terminal 3, the coil 4, and the capacitor 8.
Then, as shown in FIG. 8B, the television terminals 1, 2 a, 2 b and the telephone terminals 3, 3, 3 are arranged in pairs on the case 6. Specifically, the TV relay terminal 2b is provided at a position facing the TV input terminal 1, the TV output terminal 2a is provided on the surface therebetween, and the telephone terminal 3 is disposed adjacent to each TV terminal 1, 2a, 2b. ing.

  If comprised in this way, only the television terminal device which connected the telephone line can superimpose a telephone signal on a television output terminal, and a telephone signal does not leak to the other television terminal device connected with the television signal line. Also, since it has a TV relay terminal, it is easy to connect a plurality of TV terminals, and since the telephone relay terminal is provided adjacent to the TV input terminal and the TV relay terminal, between other TV terminal devices and the like. If the telephone line is provided along with the television signal line, the telephone line can be provided with another television terminal device or the like without superimposing the telephone signal on the television signal line.

  The television terminal device according to the second to seventh embodiments can be applied not only to a case in which the case shape is housed in the wall surface but also to other installation forms, as shown in FIG. It can also be created in a special shape for assembling to the wall fixture. For example, the television terminal device of the second embodiment shown in FIG. 4 can be made for wall mounting by using the case shown in FIG. 2 as it is, as shown in the fourth embodiment of FIG. Even in the case of a vertically long shape, by forming the case shown in FIG. 2 vertically long, it can be assembled without difficulty to the wall surface fixture 12 originally formed vertically long.

Next , the distributor will be described. FIG. 10 is a circuit diagram showing the first embodiment. In the figure, 21 is a TV input terminal for inputting a TV signal, 22 is four TV output terminals for outputting the input TV signal, and the input signal is distributed by a distribution circuit 23 that distributes the four signals. Is output from. The TV output terminals 22 are connected to each other through a telephone separation / mixing circuit in which a coil 24 and a capacitor 25 are combined.
This telephone separation / mixing circuit is composed of a coil 24 as a filter circuit for passing a telephone signal and blocking the passage of a television signal, and a capacitor 25 as a filter circuit for passing a television signal and blocking the passage of a telephone signal. Each of the television output terminals 22 is connected by a coil 24, and a capacitor 25 is provided in series with each branch output section and signal input section of the distribution circuit 23.
Thus, only the television signal passes through the distribution circuit 23, and the telephone signal is superimposed on each television output terminal 22 via the telephone signal separation and mixing circuit.
The ground conductor of the television input terminal 21 is connected to the ground conductor of each television output terminal 22 via a capacitor 26. As the capacitor 26, like the other capacitor 25, a capacitor that allows a television signal to pass therethrough and prevents a telephone signal from passing therethrough is used.

The distributor With such a configuration, even if superposed telephone signals to the TV output terminal, without the telephone signal to the upstream side is superimposed from the distributor, the high isolation between the TV input terminal It can be secured. If the telephone signal is superimposed on the coaxial cable connected to any one of the television output terminals, the telephone signal can be favorably superimposed on the other television output terminals. Therefore, if a telephone line connected to a telephone line is connected to any one of the television terminal devices, a telephone signal can be satisfactorily superimposed on each television terminal device installed downstream of the distributor , and the television of each television terminal device A telephone signal can be superimposed on the output terminal.
Thus, by combining the the distributor and the television terminal device of FIG. 4, for example of the above is a television terminal device can be favorably superimposed telephone signals to a plurality of television output terminals.
Note that the number of distributions need not be four, and may be selected according to the required number of distributions.

Figure 11 shows a second embodiment of the distributor, the same components as FIG. 10 the same reference numerals, and a description thereof will be omitted. The distributor is also output to 4 distributed by the distribution circuit 23 television signal input similarly to the distributor 10 to each television output terminal 22. However, as shown in the figure, each television output terminal 22 is provided with a telephone terminal 27, and the telephone signal is transmitted without being superimposed on each television output terminal 22. Each telephone terminal 27 is connected with the distributor casing and the grounding conductor of the TV input terminal 21 is connected to the ground conductor of the TV output terminal 22 via a capacitor 26.
The distributor With such a configuration, can be reliably cut off the leakage of the telephone signals to the upstream side of the distributor, it can ensure high isolation. Further, any one phone terminals, by connecting the telephone line connected to a telephone line, can transmit telephone signals to other telephone terminals of the distributor. Accordingly, if a telephone line is connected to one TV terminal device connected to the tip of the TV output terminal 22 using, for example, the TV terminal device of FIG. 7 described above, the TV terminal connected to another distribution output. A telephone signal can be superimposed on the TV output terminal of the apparatus. Further, the distributor can have a simple circuit configuration.

In each of the two distributors , the ground conductor of the TV input terminal (the outer conductor of the TV signal line) and the common line of the telephone line are connected via a capacitor, but they may be directly connected. In that case, although the isolation between the television signal on the television input terminal side and the telephone signal deteriorates, it is not a level unsuitable for practical use.
In the case of the form of FIG. 11, the telephone signal distributor may be provided separately from the television signal distributor.

Next, the television receiving system of the present invention will be described. FIG. 12 is a block diagram showing the first embodiment, showing the main part thereof. In the figure, 31 is a CS antenna that receives CS signals, 32 is a block converter, 33 is a BS antenna that receives BS broadcasts, 34 is a VHF antenna, 35 is a UHF antenna, and 36 is a booster. 37 is mixed and drawn indoors by a coaxial cable as one television signal line.
The mixed received signals are distributed by a distributor 38 and connected to first to fourth television terminal devices 39a to 39d provided in each room by a coaxial cable 30 which is a television signal line.
Of the installed television terminal devices 39a to 39d, the first television terminal device 39a is the television terminal device shown in FIG. Reference numeral 40 denotes a telephone line. The telephone line 40 is drawn indoors through a protector 41, and the telephone line 42 is connected to the telephone terminal of the first television terminal device 39a. With this configuration, a television signal on which a telephone signal is superimposed is output from the television output terminal of the television terminal device 39a.

The TV output terminal of the first TV terminal device 39a includes a splitter 44, a splitter / distributor 45, two digital tuners (or STBs (set top boxes)) 46a and 46b, a television receiver 47, and A block converter 48 is connected.
First, the television signal demultiplexed by the demultiplexer 44 is sent only to the demultiplexing device 45. Of the BS broadcasts, digital broadcasts are sent to the digital tuner 46a, and VHF, UHF, and BS analog broadcasts are sent directly to the television receiver 47 for reception. The digital tuner 46a selects and demodulates the BS digital broadcast and sends it to the television receiver 47 so that it can be received.
On the other hand, the CS signal is separated by the demultiplexing / distributing device 45 and connected to the digital tuner 46b via the block converter 48, so that the television receiver 47 can receive the CS signal.
The telephone signal separated by the demultiplexer 44 is sent to the digital tuner 46a and the digital tuner 46b, and can have a bidirectional function for BS and CS digital broadcasting. In the other second to fourth television terminal devices 39b to 39d, BS analog broadcast, VHF, and UHF broadcast can be received by connecting the television receiver 47.

In this way, the telephone signal can be superimposed on the TV output terminal using the existing TV reception system by simply replacing the TV terminal device. Signals can be superimposed and a bidirectional function can be provided without connecting a telephone line to a receiving device. Further, the telephone line may be connected to the television terminal device, and the connection work is easy.
Further, since the first television terminal device 39a does not superimpose a telephone signal on the television input terminal, the other television terminals connected upstream thereof can output only the television signal as usual and can receive the television signal satisfactorily.
Here, the television terminal device of FIG. 2 is used as the first television terminal device 39a, but the television terminal device shown in FIG. 1, FIG. 7, or FIG. 8 can also be used favorably. The duplexer 44 connected to the first television terminal device 39a can use the television terminal device shown in FIG.

FIG. 13 is a block diagram showing a second embodiment of the television receiving system, which is different from FIG. 12 in the distributor and the television terminal device. In addition, the same code | symbol is provided to the component same as FIG. 12, and description is abbreviate | omitted.
Specifically, in FIG. 13, 51 is a distributor distributor shown in FIG. 10 is used. Also, among the first to fourth plurality of television terminals device 39e~39h the distribution output of the divider 51 is connected, the television terminal device shown in FIG. 4 to the first television terminal apparatus 39e is used, other As the second to fourth television terminal devices 39f to 39h, conventional current passing type television terminal devices without telephone terminals are used. Then, so that the telephone line 42 by connecting to the television terminal apparatus 39e, it superimposes a telephone signal to the television output terminals of all of the television terminal device connected to the distributor 51.

  Thus, for example, the television receiver 47 can be connected to the television output terminal of the first television terminal device 39e via the demultiplexer 44, and a telephone (or facsimile) 55 can be connected using the demultiplexed telephone signal. . In addition, the other second to fourth television terminal devices 39f to 39h can be provided with a bidirectional function if the receiving device is a digital television 54 with a built-in duplexer only by connecting a television signal line. If the personal computer 53 is connected via the duplexer 44, bidirectional communication is possible. Furthermore, if a television receiver 47 is connected via the demultiplexer 44, the demultiplexer / distributor 45, and the digital tuner (or STB) 46, the existing television receiver can be provided with a bidirectional function.

Thus, by configuring the reception system in combination with distributor television terminal device and 10 of FIG. 4, only by connecting a telephone line connected to a telephone line to one of the television terminal device, all The telephone signal can be superimposed on the TV output terminal of the TV terminal device.
Here, although the television terminal device of FIG. 4 is used for the first television terminal device 39e, the television terminal device of FIGS. 5 and 6 may be used. Also, the television terminal devices 39f to 39h that do not need to be connected to a telephone line may be television terminal devices having telephone terminals as shown in FIG.

Figure 14 shows another example of a television receiving system using a distributor 51 of Figure 10. Part of the antenna and the distribution output is omitted, and shows a distribution output lines and connected devices distributor connected to the telephone line, it is different mainly television terminal apparatus and FIG 13. In addition, the same code | symbol is provided to the component same as the said FIG. 12, and description is abbreviate | omitted.
Specifically, the television terminal device shown in FIG. 5 is used as the first television terminal device 39i, and the television terminal device shown in FIG. 6 is used as the second television terminal device 39j. Then, the telephone line 57 is connected to the first television terminal device 39i arranged at the end, and the second television terminal device 39j is interposed upstream of the first television terminal device 39i, so that one of the distributed outputs of the branching device 51 is provided. It is connected to the. The telephone line 57 connects the existing telephone terminal 58 to which the telephone line 40 drawn indoors is connected to the first television terminal device 39i provided on the wall surface.

Thus, the telephone signal, in addition to TV output terminal of the first television terminal apparatus 39i, the even television input terminal is superimposed, the second television terminal device 39j is connected upstream, and to the distributor 51 via a television signal line Are superimposed. Then, by installing other similar television terminal device to distribute the output of the divider 51, the telephone signal is also superimposed on the TV output terminal thereof television terminal device. As shown in the figure, since any television terminal device 39i, 39j has a telephone terminal 3, a telephone 55 or a facsimile can be connected, and a duplexer 44, a duplexer distributor 45, a digital tuner is connected to the television output terminal 2. By connecting the television receiver 47 via 46, the television receiver 47 can be provided with a bidirectional function.
Thus, FIG. 5, by configuring the reception system in combination with distributor television terminal device and 10 in FIG. 6, the television terminal device in series with the distribution output of the distributor 51 (TV output) It can be connected, and a telephone signal can be superimposed on the TV output terminals of all TV terminal devices by simply connecting a telephone line connected to a telephone line to one TV terminal device.
Here, although the television terminal device of FIG. 5 is used for the first television terminal device 39i, the television terminal device of FIG. 4 or FIG. 6 may be used.

Figure 15 is a block diagram showing a third embodiment of a television receiver system, wherein, along with using the dispenser of FIG. 11 to the distributor, FIG. 2, the television terminal shown in FIG. 7 or FIG. 8 The device is in use. It should be noted that the same components as those in FIG.
Specifically, dispenser 60 is distributor shown in FIG. 11, the first television terminal device 39k television terminal device shown in FIG. 7, a second television terminal device 39l television terminal device shown in FIG. 2, third TV terminal device 39m is a television terminal device shown in FIG. 8, distributed signal distributor 60 or is connected to the first television terminal device 39k in the coaxial cable 30, such as via the middle third television terminal device 39m Then, it is connected to the second television terminal device 39l. Each of the television terminal devices 39k to 39m is also connected to a telephone line 61 provided alongside the coaxial cable 30. Thus, the connection from the distributor 60 to the downstream television terminal device is performed by a coaxial cable 30 and telephone line 61.

Then, the first television terminal device 39k, the telephone line 42 of the telephone line 40 drawn indoors is connected, by a first television terminal device telephone line 61 connected to the upstream side of the 39k thereof, distributor 60, and other A telephone signal is superimposed on the TV terminal device.
Thus, by connecting the telephone line to one of the television terminal apparatus can superimpose the telephone signals to the TV output terminals of all of the television terminal device connected to the distributor.

In FIG. 15, reference numeral 62 denotes a digital television that can directly receive a digital broadcast. If a duplexer 44 is built in, it can be directly connected to a television output terminal to have a bidirectional function. 7 is used for the first TV terminal device 39k, the TV terminal device of FIG. 8 can be used, and the TV terminal device of FIG. 2 can be used for the second TV terminal device 39l. Although used, the television terminal device of FIG. 7 may be used.
In the above television receiving systems, a telephone line is connected to a terminal television terminal device and a telephone signal is superimposed on the television signal. However, even if a telephone line is connected to a television terminal device interposed in the middle, A telephone signal can be similarly superimposed on a television signal by selecting a television terminal device.

Shows a first embodiment of the television terminal device, (a) is a circuit diagram, (b) is an external view. It is an external view which shows another case shape with the same circuit structure as FIG. The state which assembled | attached the television terminal device of FIG. 2 to the wall surface fixture is shown, (a) is a front view, (b) is AA sectional view explanatory drawing. The 2nd Embodiment of a television terminal device is shown, (a) is a circuit diagram, (b) is an external view. A 3rd Embodiment of a television terminal device is shown, (a) is a circuit diagram, (b) is an external view. The 4th Embodiment of a television terminal device is shown, (a) is a circuit diagram, (b) is an external view. A 5th embodiment of a television terminal device is shown, (a) is a circuit diagram and (b) is an external view. The 6th Embodiment of a television terminal device is shown, (a) is a circuit diagram, (b) is an external view. It is a front view which shows the other case shape of a television terminal device. It is a circuit diagram which shows 1st Embodiment of a divider | distributor . It is a circuit diagram which shows 2nd Embodiment of a divider | distributor. It is a block diagram which shows 1st Embodiment of the television receiving system which concerns on this invention. It is a block diagram which shows 2nd Embodiment of a television receiving system. It is a block diagram which shows 3rd Embodiment of a television receiving system. It is a block diagram which shows 4th Embodiment of a television receiving system.

Explanation of symbols

1 .... TV input terminal (TV terminal), 2, 2a, 2b .. TV output terminal (TV terminal), 3 .. Telephone terminal, 4 .. Coil, 5 .. Capacitor, 6 .. Case (housing) , 7, 8 .. Capacitor, 12 .. Wall mount, 15 .. Branch circuit, 16 .. Switch, 21 .. TV input terminal, 22 .. TV output terminal, 23 .. Distribution circuit, 24. , 25 ... capacitor, 26 ... capacitor, 27 ... telephone terminal, 30 ... coaxial cable (television signal line), 39A～39m ... television terminal device, 40 ... telephone line, 51 ... distributor, 57 · telephone line, 60 ... distributor, 61 ... telephone line.

Claims (5)

In a television receiving system including a distributor that receives and distributes a received television broadcast signal, and a plurality of television terminal devices that output the signal distributed by the distributor,
The distributor has a television input terminal for inputting a television signal and a plurality of television output terminals for outputting the television signal and relaying a telephone signal, and the television input terminal outputs each television output via a distribution circuit. The television output terminals are connected to each other via a telephone separation / mixing circuit that separates or mixes the telephone signals so that telephone signals are not superimposed on the television input terminals. The television output terminal is connected to the ground conductor through a filter circuit that blocks the passage of the television signal and the telephone signal, and the plurality of television terminal devices have one television input terminal for inputting the television signal. A TV output terminal for outputting a TV signal input from the TV input terminal, and a telephone terminal for connecting a telephone line. For example, it comprises both the TV output terminal and the TV input terminal connected to the telephone terminal via a telephone signal superimposing circuit for superimposing a telephone signal,
A television receiving system, wherein a telephone signal from the telephone line can be superimposed on a plurality of television terminal terminal TV output terminals by connecting a telephone line to any one telephone terminal of the television terminal apparatus. In a television receiving system including a distributor that receives and distributes a received television broadcast signal, and a plurality of television terminal devices that output the signal distributed by the distributor,
The distributor has a television input terminal for inputting a television signal and a plurality of television output terminals for outputting the television signal and relaying a telephone signal, and the television input terminal outputs each television output via a distribution circuit. The television output terminals are connected to each other via a telephone separation / mixing circuit that separates or mixes the telephone signals so that telephone signals are not superimposed on the television input terminals. The television output terminal is connected to the ground conductor through a filter circuit that blocks the passage of the television signal and the telephone signal, and the plurality of television terminal devices have one television input terminal for inputting the television signal. One TV output terminal for outputting a TV signal input from the TV input terminal, and two telephone terminals for connecting a telephone line. For example, the is connected to a TV input terminal and the television output telephone terminal through the telephone signal superimposing circuit for superimposing both telephone signals of the terminals comprises a telephone terminal connected with each other to,
A television receiving system, wherein a telephone signal from the telephone line can be superimposed on a television output terminal of a plurality of television terminal devices by connecting a telephone line to any one telephone terminal of the television terminal device. . In a television receiving system including a distributor that receives and distributes a received television broadcast signal, and a plurality of television terminal devices that output the signal distributed by the distributor,
The distributor has a television input terminal for inputting a television signal and a plurality of television output terminals for outputting the television signal and relaying a telephone signal, and the television input terminal outputs each television output via a distribution circuit. The television output terminals are connected to each other via a telephone separation / mixing circuit that separates or mixes the telephone signals so that telephone signals are not superimposed on the television input terminals. The television output terminal is connected to the ground conductor through a filter circuit that blocks the passage of the television signal and the telephone signal, and the plurality of television terminal devices have one television input terminal for inputting the television signal. Two TV output terminals for outputting a TV signal input from the TV input terminal, and two telephone terminals for connecting a telephone line. The TV input terminal and one of the TV output terminals are connected via a branch circuit, and the branch circuit is connected to the other TV output terminal, and the telephone terminal and all TV signal input terminals and TV signal output terminals Is connected via a telephone signal superimposing circuit for superimposing a telephone signal, and telephone terminals are connected to each other,
A television receiving system, wherein a telephone signal from the telephone line can be superimposed on a television output terminal of a plurality of television terminal devices by connecting a telephone line to any one telephone terminal of the television terminal device. . In a television reception system comprising: a distributor that receives and distributes at least one received television broadcast signal; and a plurality of television terminal devices that output signals distributed by the distributor.
The distributor includes a television input terminal for inputting a television signal, a plurality of television output terminals for outputting the television signal, and the same number of telephone relay terminals as the television output terminal, the television input terminal and the television output terminal. Are connected via a distribution circuit for distributing television signals, the telephone relay terminals are connected to each other, and further, the television signal passes through the ground conductor of the television input terminal and the ground conductor of the television output terminal. While being connected through a filter circuit that blocks the passage of telephone signals
Each of the plurality of television terminal devices includes a television input terminal for inputting a television signal, a television output terminal for outputting a television signal input from the television input terminal, and a telephone terminal, and a television output terminal. And a telephone terminal are connected via a telephone signal superimposing circuit,
At least one TV terminal device includes one TV output terminal and two telephone terminals, and telephone terminals are connected to each other.
By connecting each TV terminal device and the distributor with a TV signal line and a telephone line, and connecting a separate telephone line to the TV terminal device having the two telephone terminals, a TV output of a plurality of TV terminal devices can be obtained. A television receiving system, wherein a telephone signal from a telephone line separately connected to a terminal can be superimposed. In a television reception system comprising: a distributor that receives and distributes at least one received television broadcast signal; and a plurality of television terminal devices that output signals distributed by the distributor.
The distributor includes a television input terminal for inputting a television signal, a plurality of television output terminals for outputting the television signal, and the same number of telephone relay terminals as the television output terminal, the television input terminal and the television output terminal. Are connected via a distribution circuit for distributing television signals, the telephone relay terminals are connected to each other, and further, the television signal passes through the ground conductor of the television input terminal and the ground conductor of the television output terminal. While being connected through a filter circuit that blocks the passage of telephone signals
Each of the plurality of television terminal devices includes a television input terminal for inputting a television signal, a television output terminal for outputting a television signal input from the television input terminal, and a telephone terminal, and a television output terminal. And a telephone terminal are connected via a telephone signal superimposing circuit,
At least one of the television terminal devices includes two television output terminals and three telephone terminals, and connects the television input terminal and one television output terminal via a branch circuit and sends the branch output to the other. Connected to the TV output terminal, the TV output terminal connected to the branch output and the telephone terminal are connected via the telephone signal superimposing circuit, and the three telephone terminals are connected to each other.
Each TV terminal device and distributor are connected by a TV signal line as well as a telephone line, and by connecting a separate telephone line to the TV terminal device having the three telephone terminals, a TV output of a plurality of TV terminal devices is obtained. A television receiving system, wherein a telephone signal from a telephone line separately connected to a terminal can be superimposed.

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