JP3089749U - Indoor UHF wireless transmitter - Google Patents

Abstract

(57) [Problem] Conventionally, it was necessary to connect a home TV receiver and an indoor antenna output terminal with a coaxial cable or the like. There was a problem. The present invention eliminates the need for wiring such as a coaxial cable and provides an environment where digital terrestrial TV broadcasts can be easily received anywhere in a room. The present invention connects to an indoor antenna output terminal, separates and amplifies UHF, and wirelessly transmits the signal from a built-in transmitting antenna, thereby enabling UHF reception by an indoor antenna attached to a home TV receiver. And wiring such as a coaxial cable is unnecessary.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a home TV booster having a UHF wireless transmission function adapted to terrestrial digital TV broadcasting.

[0002]

[Prior art]

 Conventionally, when a home-use TV receiver is used indoors such as in a detached house or an apartment house, an indoor antenna output terminal and an antenna input terminal of the TV receiver are connected by a coaxial cable or the like.

[0003]

[Problems to be solved by the invention]

 Conventionally, when the indoor antenna output terminal and the home TV receiver antenna input terminal are connected with a coaxial cable or the like, the indoor wiring of the coaxial cable becomes complicated, the indoor wiring impairs the beauty of the living room, and the kitchen and The problem was that there were places such as bathrooms where coaxial cables were difficult to pull in. The UHF wireless transmitter according to the present invention eliminates the need for wiring such as a coaxial cable and provides an environment in which terrestrial digital TV broadcasts can be easily received anywhere in a room.

[0004]

[Means for Solving the Problems]

 The present invention connects to the indoor antenna output terminal, separates the UHF with a UHF filter, and wirelessly transmits from the built-in transmitting antenna through the amplifier circuit, enabling high-quality UHF reception with the indoor antenna attached to the home TV receiver. This eliminates the need for wiring such as coaxial cables. In addition, the present invention has a structure of a device that can be easily attached and directly attached to the indoor antenna output terminal so as not to make the installation place cumbersome.

[0005]

[Embodiment of the invention]

 When the antenna input terminal of the device of the present invention is connected to the indoor antenna terminal and the power plug is connected to the power outlet, this device separates UHF from broadcast waves received from the outdoor TV antenna and amplifies UHF. It fires from the built-in transmitting antenna. In a home TV receiver, UHF is received by an indoor TV antenna and reproduced by the TV receiver.

[0006]

【Example】

 Hereinafter, embodiments will be described with reference to the accompanying drawings. Insert the antenna input terminal 2 of the device of the present invention into the indoor antenna output terminal 11 and plug the power plug 4 into a household power outlet.

A broadcast radio wave (VHF, UHF, BS) input from the antenna input terminal 2 is divided into two by a two-way distribution circuit 3, and one is output from an antenna output terminal 9. The other UHF is separated by a UHF filter 6, the separated UHF is power-amplified by a UHF power amplification circuit 7, and a UHF transmission antenna 8 emits a UHF retransmission radio wave 14. DC (DC power) required for these circuits is supplied from a power supply circuit 5.

An indoor antenna 15 is attached to a home TV receiver 16, the UHF retransmitted radio wave 14 is received by this antenna, and a TV broadcast is reproduced by the home TV receiver 16.

[Effect of the invention]

 As described above, the use of the UHF radio transmitter of the present invention eliminates the need for wiring and connection of coaxial cables, which were indispensable, and places where it has been difficult to watch high-quality TV such as kitchens and bathrooms. However, wireless TV reception can be easily performed. It is assumed that TV receivers will be installed not only in portable receivers such as liquid crystal TVs and notebook computers that are adapted to terrestrial digital TV broadcasting, but also in mobile receivers such as PDAs (mobile information terminals) and mobile phones. However, when these receiving terminals are used indoors, the present invention, which enables high-quality wireless TV reception, further enhances convenience.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram of the device of the present invention.

FIG. 2 is an external view and a mounting view of the device of the present invention.

FIG. 3 is an overall conceptual diagram of connection to a TV common listening wiring in a detached house.

[Explanation of code]

1 Conceptual line of the outer box of the device of the present invention 2 Antenna input terminal (for VHF, UHF, BS) 3 2 Distribution circuit 4 Power plug 5 Power supply circuit 6 UHF filter 7 UHF power amplifier circuit 8 UHF transmission antenna 9 Antenna output terminal (VHF , UHF, BS compatible) 10 DC output 11 Indoor antenna output terminal (VHF, UHF, BS compatible) 12 Wall line inside the house 13 Appearance of the device of the invention 14 UHF retransmitted radio wave 15 Indoor TV antenna 16 Home TV receiver 17 UHF Outdoor Antenna 18 VHF Outdoor Antenna 19 Coaxial Cable Wiring 20 TV Hearing Distributor 21 BS Antenna

Claims (1)

[Utility model registration claims] 1. A device adapted to terrestrial digital TV broadcasting, connected to an indoor antenna output terminal to separate and amplify UHF, and wirelessly transmit from a transmitting antenna.