JPH10336481A - Common reception system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the system to have provision for increase in a broadcast station by using a changeover device placed in a house so as to alternatively give a signal of one trunk line among a plurality of trunk lines to the house thereby simplifying wiring of each house or the like. SOLUTION: The common reception system 1 comprises a trunk line 8 through which signals received by antennas 2, 3 are sent to each house 12, a changeover device 10 that selects the required signal from a broadcast station and an outlet 11 being a terminal to receive the signal fed from the trunk line 8 and an outlet 11 that is a terminal to receive a signal received via the changeover device 10 in a room 13. A viewer of a television receiver in the room 13 controls the changeover device 10 by sending a signal or a remote commander receiver 10a from a remote command transmitter 10b to select the trunk line 8 from which the signal is supplied. For example, in the case of selecting the trunk line 8a, a broadcast received by a UHF antenna 2a, a VHF antenna 2b, and satellite broadcast antennas 3a, 3b can be received.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint receiving system for supplying a television broadcast signal to each dwelling unit and tenant in an apartment or building.

[0002]

2. Description of the Related Art Each dwelling unit in a condominium or the like receives a broadcast wave of a television by a shared antenna installed in the condominium or the like. In this case, a condominium or the like is provided with a trunk line for transmitting a signal received by the antenna, and a signal branched from the trunk line by a branch unit is supplied to each dwelling unit. It is necessary to provide the number of such trunk lines according to the number of antennas.
Since different frequency bands are assigned to VHF and satellite broadcast radio waves, radio waves received by each antenna are mixed by a mixer to form one signal.
It is supplied to each dwelling unit by one trunk line.

[0003]

On the other hand, with the increase in the number of satellite broadcasts, there is a demand for receiving broadcasts from each station at each dwelling unit. However, since the broadcast waves of each station of the satellite broadcast have frequency bands similar to each other, it is difficult to mix the broadcast waves as described above into one signal. Therefore, it is necessary to provide a plurality of trunk lines, and it is necessary to increase the number of wirings and the number of outlets in the room corresponding to the number of trunk lines in each dwelling unit. Complicated outlet installation,
In addition, the connection with the television receiver may be confused. Furthermore, there is a possibility that a new satellite broadcast will be opened in the future, and it will be troublesome to repair the wiring of each dwelling unit such as an existing condominium every time.

Accordingly, it is an object of the present invention to provide a joint receiving system which can simplify wiring of each dwelling unit and the like and can cope with an increase in broadcasting stations.

[0005]

According to the present invention, a plurality of television antennas installed in a building having a plurality of dwelling units according to the type of broadcasting station, and each of the dwelling units is received by the television antenna. And a plurality of trunks for transmitting the signals of the respective broadcast stations, in a shared receiving system, which is provided between the trunk and the dwelling unit, and is provided with only one of the plurality of trunks. A shared reception system is provided, comprising: a switch for selectively supplying a signal to the dwelling unit; and an operation device provided in the dwelling unit and for switching the switch. According to this means, only one of the signals of the plurality of trunk lines is selected by the switch and supplied to the dwelling unit. The selection by the switching device is performed by an operation device provided in the dwelling unit, and a television viewer can select each broadcasting station while watching the television. Therefore, in each dwelling unit, only one line for receiving the signal of the main line and the wiring of the operation device are sufficient, so that the wiring of each dwelling unit is simplified. In addition, even when the number of trunk lines is increased due to the increase in the number of broadcasting stations, it is possible to respond sequentially because only the number of switches to be selected is increased.

In the present invention, the building means a building, such as an apartment or a building, which shares a television antenna, and the dwelling unit means a dwelling unit, a tenant, etc. in the building. The TV antenna is a UHF
-Means VHF and satellite broadcasting antennas. The trunk line may be provided for each antenna. However, it is preferable to reduce the number of the trunk lines by mixing signals received by the antenna using a mixer and a block converter for converting a frequency band.

The switch has at least as many input terminals as the number of the trunk lines, and the output terminals are connected to an outlet or the like in a dwelling unit. This switch is provided at least once for each dwelling unit, but may be provided for each room in the same dwelling unit. The operating device refers to a device that operates the switching device manually or by a remote controller.

[0008]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a system diagram of a joint receiving system 1 according to the present invention.
The joint receiving system 1 switches the trunk line 8 for transmitting the signal received by each antenna (2, 3) to each dwelling unit 12 and the signal of the required broadcasting station from the trunk line 8 to supply the signal to the dwelling unit 12. It comprises a switch 10 and an outlet 11 which is a terminal for receiving a signal supplied via the switch 10 in the room 13.

The mixer 6 includes a UHF antenna 2a, a VHF
The signals received by the antenna 2b, the satellite broadcast antenna 3a, and the satellite broadcast antenna 3b are transmitted to respective transmission paths (4
a, 4b, 5a, 5b) and mixes them into one signal. In this case, the satellite broadcasting antenna 3
The frequency band of the signal received by b is converted by the block converter 7 so as not to be mixed with the signal received by the satellite broadcast antenna 3a. If the signals received by the satellite broadcast antennas 3c and 3d are combined into one signal by applying the block converter 7 and the mixer 6, the number of the trunk lines 8 can be reduced.

The trunk line 8 is disposed so as to traverse an apartment or the like in which the joint receiving system 1 is used. The trunk line 8a transmits a signal from the mixer 6, and the trunk line 8a transmits signals from the satellite broadcasting antennas 3c and 3d. It comprises trunk lines 8b and 8c for transmitting signals, respectively. The trunk line 8 can be
A signal amplifier (not shown) is appropriately installed.

The switching unit 10 is provided for each dwelling unit 12, receives three signals branched from the main line 8 by a branching unit (not shown), switches one of the signals, and outputs the signal to the outlet 11. . Outlet 11
Is connected to a television receiver. Remote control receiver 1
0a is installed in the room 13 of the dwelling unit 12, and transmits a switching signal to the switch 10 in accordance with a signal from the remote control transmitter 10b.

In the joint receiving system 1 having such a configuration, a television viewer in the room 13 operates the switch 10 by transmitting a signal from the remote control transmitter 10b to the remote control receiver 10a, and a signal is supplied. Select trunk line 8. When the trunk line 8a is selected, the UHF antenna 2a, the VHF antenna 2b, the satellite broadcast antenna 3a
And 3b, the broadcast received by the satellite antenna 3c when the trunk line 8b is selected, and the broadcast received by the satellite antenna 3d when the trunk line 8c is selected. Can be received.

[Brief description of the drawings]

FIG. 1 shows systems of a joint receiving system 1 according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Joint reception system 2 Antenna 3 Satellite broadcasting antenna 8 Trunk line 10 Switch 10a Remote control receiver 10b Remote control transmitter 11 Outlet

Claims (1)

[Claims] Claims: 1. It is installed in a building having a plurality of dwelling units,
In a joint receiving system including a plurality of television antennas provided according to the type of broadcast station, and a plurality of trunks transmitting signals of each broadcast station received by the television antenna to each dwelling unit, A switch is provided interposed between the dwelling unit, and a switch for selectively supplying a signal of only one of the plurality of trunk lines to the dwelling unit, and is provided in the dwelling unit,
An operating device for switching the switching device.