JP2007214907A - Booster - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a booster which is capable of reducing a broadcast receiving system in size as a whole, simplifying its wiring, improving its external appearance, and improving its portability. <P>SOLUTION: The booster 2 is equipped with a broadband amplifier 25, a first built-in antenna 21 etc, a power supply circuit 29, and an F-type connector 26. The broardband amplifier 25 amplifies electric signals. The first built-in antenna 21 etc, supplies the electrical signals to the broardband amplifier 25. The power supply circuit 29 supplies a power to the broadband amplifier 25. The F-type connector 26 is capable of being directly connected to the F-type connector 30 of a television set 3 and outputting the electrical signals amplified by the broadband amplifier 25 to the F-type connector 30 of the television set 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a booster, and more particularly to an active relay type booster used for satellite broadcasting, terrestrial broadcasting, and the like.

  2. Description of the Related Art Conventionally, in a television broadcast receiving system that receives a television broadcast such as a terrestrial broadcast or a satellite broadcast, each unit constituting the television broadcast receiving system is configured as a separate unit, such as an antenna, a booster, and a receiver. These units are connected via a signal cable.

  FIG. 5 is a diagram showing the appearance and arrangement of a conventional television broadcast receiving system. The conventional television broadcast receiving system includes an external antenna 1, an F-type connector 11, a coaxial cable 12, a booster 8, a coaxial cable 9, and a television set 3. The external antenna 1 converts a television broadcast signal propagating in the air into an electric signal. The coaxial cable 12 introduces the electric signal converted by the antenna into the booster 8. The booster 8 amplifies an electric signal with a built-in wideband amplifier. The coaxial cable 9 introduces an electrical signal into the tuner unit 31 built in the television set 3. The television set 3 extracts a broadcast signal of a predetermined broadcast station by the tuner unit 31, and then displays an image represented by the signal.

  Patent Document 1 is connected to an input terminal that is detachably attached to an antenna output terminal that outputs broadcast radio waves such as VHF, UHF, BS, and digital signals received from the outside to an indoor area or a radio interference area, and the input terminal. An amplifier circuit that amplifies broadcast radio waves input from the input terminal, a commercial power supply connection circuit that connects to a commercial power source connected to the amplifier circuit, and an output antenna that outputs the broadcast radio waves amplified by the amplifier circuit Disclosed is a radio wave transmission device.

  According to the invention disclosed in Patent Document 1, wiring such as coaxial cables is eliminated, and broadcast radio waves such as VHF (Very High Frequency), UHF (Ultra High Frequency), and BS (Broadcasting Satellite) are used indoors or within the reach of radio waves. A radio wave transmitter that can be easily received can be provided.

  Patent Document 2 discloses a radio booster for television that has an RF (Radio Frequency) booster and operates by receiving power supply from an AC (Alternating Current) adapter. The radio booster for television applies a high frequency output signal of the RF booster to a power line connecting the AC adapter and the RF booster.

According to the device disclosed in Patent Document 2, a pocket TV, a stationary TV set, and a VTR can be received by a small indoor antenna or the like without impairing the indoor landscape.
JP 2004-222114 A Japanese Utility Model Publication No. 63-140745

  However, the inventions and devices disclosed in Patent Document 1 and Patent Document 2 have problems that it is difficult to reduce the size of a television broadcast receiving system, simplify wiring, beautify the landscape, and improve portability. is there. As described above, in the conventional television broadcast receiving system, it is necessary to connect the antenna, the booster, and the receiver with coaxial cables. The scenery of the TV broadcast receiving system is damaged by this coaxial cable. Further, if the television broadcast receiving system is moved, it is necessary to move the units such as the antenna, the booster, and the receiver, and then connect them again by the coaxial cable. This impairs the portability of the television broadcast receiving system. In addition, these hinder the miniaturization of the entire television broadcast receiving system. These problems are also problems that occur similarly in broadcast receiving systems other than the television broadcast receiving system.

  The present invention has been made to solve the above-described problems, and its purpose is to provide a booster that realizes downsizing of the entire broadcast receiving system, simplification of wiring, beautification of scenery, and improvement of portability. There is to do.

  In order to achieve the above object, according to one aspect of the present invention, the booster includes an amplifying means, a first supplying means, a second supplying means, and a first output fitting. The amplification means amplifies the first electric signal. The first supply means supplies the first electric signal to the amplification means. The second supply means supplies power to the amplification means. The first output fitting can be directly connected to the fitting of the receiving device, which is a device that can receive the electric signal, and outputs the second electric signal, which is the electric signal amplified by the amplification means, to the fitting of the receiving device.

The first output fitting described above preferably includes a connector.
Alternatively, the connector described above preferably includes a coaxial connector.

  Moreover, it is preferable that the first supply means described above includes an antenna that generates a first electric signal corresponding to a signal represented by the received radio wave.

  Alternatively, the booster described above preferably further includes a housing that accommodates at least the amplification means and the antenna.

  Moreover, it is preferable that the first supply unit described above includes a plurality of antennas that respectively generate first electric signals corresponding to signals represented by the received radio waves. In addition, it is desirable that the booster further includes first switching means for switching a signal to be supplied to the amplifying means between the first electric signals generated by the plurality of antennas.

  Alternatively, it is desirable that the booster described above further includes a measurement unit and a first control unit. The measuring means measures the signal strength of the second electric signal. The first control means controls the first switching means so as to switch the signal supplied to the amplification means according to the signal intensity measured by the measurement means.

  Moreover, it is desirable that the first supply unit described above includes a relay unit and a second antenna. The relay means relays the first electric signal generated by the first antenna to the amplification means. The second antenna generates a first electrical signal corresponding to the signal represented by the received radio wave. In addition, the booster includes second switching means for switching a signal supplied to the amplification means between the first electric signal relayed by the relay means and the first electric signal generated by the second antenna. It is desirable to include further.

  Alternatively, it is desirable that the booster described above further includes a measurement unit and a second control unit. The measuring means measures the signal strength of the second electric signal. The second control means controls the second switching means so as to switch the signal supplied to the amplification means according to the signal intensity measured by the measurement means.

  Moreover, it is desirable that the booster described above further includes a measurement unit and a third control unit. The measuring means measures the signal strength of the second electric signal. The third control means controls the amplifying means so that the gain of the amplifying means becomes a constant value.

  The booster described above preferably further includes a second output fitting and first distribution means. The second output fitting outputs a second electrical signal. The first distribution unit distributes the second electric signal to the first output fitting and the second output fitting.

  The booster described above preferably further includes second distribution means for distributing the power supplied by the second supply means to the amplification means and an arbitrary load.

  In addition, the booster described above preferably further includes power storage means for storing the power supplied by the second supply means.

  Moreover, it is desirable that the second supply means described above includes means for supplying DC power and prevention means. The means for supplying DC power is at least partially different from the path for outputting the second electric signal and supplies DC power to the amplifying means via a path through the first output fitting. The prevention means prevents the supply of DC power in the path for outputting the second electric signal.

  The booster according to the present invention realizes downsizing of the entire broadcast receiving system, simplification of wiring, beautification of scenery, and improvement of portability.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

<First Embodiment>
FIG. 1 is a diagram showing a configuration of a television broadcast receiving system according to the present embodiment. Referring to FIG. 1, the television broadcast receiving system in the present embodiment includes an external antenna 1, an F-type connector 11, a coaxial cable 12, a booster 2, and a television set 3. The external antenna 1 converts the television broadcast signal propagating in the air to generate an electrical signal corresponding to the television broadcast signal. The F-type connector 11 introduces the electrical signal converted by the external antenna 1 into the coaxial cable 12. The coaxial cable 12 introduces an electrical signal into the booster 2. The booster 2 amplifies the electric signal. The television set 3 is a device that can receive an electrical signal via an F-type connector 30 described later. The television set 3 displays an image based on the electrical signal received from the booster 2.

  The booster 2 includes an F-type connector 20, a first built-in antenna 21, a second built-in antenna 22, a third built-in antenna 23, a switch 24, a wideband amplifier 25, and an F-type connector inside the housing. 26, a detection circuit 27, a microcontroller 28, and a power supply circuit 29. However, part of the F-type connector 20 and the F-type connector 26 is exposed to the outside of the housing. The F-type connector 20 is an external input terminal that receives an electrical signal from the external antenna 1 via the coaxial cable 12. The F-type connector 20 is also a terminal that relays the electrical signal generated by the external antenna 1 to the wideband amplifier 25. The first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 convert a television broadcast signal propagating in the air as a radio wave into an electric signal. Thereby, the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 can supply the wideband amplifier 25 with the electrical signal generated by the signal conversion by itself. The electric signals generated by the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 are signals represented by radio waves received by the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23. It will correspond to. In the present embodiment, it is assumed that the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 are orthogonal to each other in the direction of increasing sensitivity. The switch 24 is a device that switches a signal to be supplied to the wideband amplifier 25 among electrical signals generated by the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23, respectively. The switch 24 is connected to the wideband amplifier 25 between the electrical signal relayed by the F-type connector 20 and the electrical signal generated by any of the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23. It is also a device that switches the supplied signal. The wideband amplifier 25 amplifies the electric signal. The F-type connector 26 is an output fitting that can be directly connected to the F-type connector 30 of the television set 3 and that outputs the electrical signal amplified by the wideband amplifier 25 to the F-type connector 30 of the television set 3. In this embodiment, the F-type connector 26 is a female F-type connector. The detection circuit 27 outputs a detection signal. The detection signal output from the detection circuit 27 corresponds to the intensity of the electrical signal output from the wideband amplifier 25. Thus, in the case of the present embodiment, the detection circuit 27 operates as a circuit that measures the signal strength of the electric signal amplified by the wideband amplifier 25. The microcontroller 28 switches the switch 24 so that an electric signal having the highest signal strength among the external antenna 1, the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 is introduced into the wideband amplifier 25. To control. As a result, the microcontroller 28 operates as a device that controls the switch 24 so as to switch the signal supplied to the wideband amplifier 25 in accordance with the signal strength measured by the detection circuit 27. The power supply circuit 29 supplies power to each circuit of the booster 2. The “each circuit of the booster 2” includes the wideband amplifier 25. In the present embodiment, the power supplied from the power supply circuit 29 is DC power. The power supply circuit 29 obtains power to be supplied to each part of the booster 2 by converting AC power into DC power. The power circuit 29 obtains AC power through the power plug 18 and the power cable 16.

  The television set 3 includes an F-type connector 30, a tuner unit 31, and a power supply circuit 32. The F-type connector 30 is a metal fitting that is directly connected to the F-type connector 26 of the booster 2 to receive an electric signal directly from the booster 2. In the present embodiment, the F-type connector 30 is a male F-type connector. The tuner unit 31 extracts a signal having a frequency selected by the user from the electrical signal received by the F-type connector 30. The power supply circuit 32 supplies power to each part of the television set 3. The power supply circuit 32 obtains power to be supplied to each part of the television set 3 from the outlet 19 via the power plug 17 and the power cable 15.

The operation of the booster 2 based on the above structure will be described.
The F-type connector 20 receives an electrical signal from the coaxial cable 12. The first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 convert a television broadcast signal propagating through the air into an electrical signal. The switch 24 is controlled by the microcontroller 28 to receive an electrical signal received by the F-type connector 20, an electrical signal output from the first built-in antenna 21, an electrical signal output from the second built-in antenna 22, and a third built-in antenna. Any one of the electrical signals output from 23 is introduced into the wideband amplifier 25. The wideband amplifier 25 amplifies the electric signal. The F-type connector 26 outputs the electrical signal amplified by the wideband amplifier 25 to the F-type connector 30 of the television set 3.

  As described above, in the present embodiment, the F-type connector 26 provided in the booster 2 is a female connector. This F-type connector 26 is directly connected to the F-type connector 30 of the television set 3 without using cables. In the case of the present embodiment, the F-type connector 30 of the television set 3 is a male connector. As a result, the booster 2 is fixed to the television set 3.

  As described above, the booster according to the present embodiment is directly connected to the antenna terminal of the television set. Since the booster is directly connected to the television set, no coaxial cable is required between the booster and the television set. Since no coaxial cable is required, the landscape of the TV broadcast receiving system is not impaired. Since no coaxial cable is required, wiring is simplified compared to the case where a coaxial cable is required. Since no coaxial cable is required, the entire television broadcast receiving system can be reduced in size. Since no coaxial cable is required, the portability of the entire TV broadcast receiving system is improved.

  The booster according to the present embodiment is directly connected to the antenna terminal of the television set by an F-type connector which is a kind of coaxial connector. When the booster is connected by the coaxial connector, the coaxial connector can bear a part of the load of the booster, so that the reinforcing material for fixing the booster to the television set can be omitted or reduced. As a result, the degree of freedom in design of the entire television broadcast receiving system can be increased.

  The booster according to the present embodiment includes a plurality of built-in antennas and switches. Thereby, an optimal signal can be obtained from the antenna selected in accordance with the direction and installation location of the television broadcast receiving system.

  Further, the booster according to the present embodiment controls the switch so that the signal intensity is maximized by the built-in detection circuit and the microcontroller. Thereby, the optimal signal can be automatically selected according to the installation environment.

  The booster according to the present embodiment includes a terminal for receiving an electrical signal from an external antenna in addition to the built-in antenna. The booster switch can select electrical signals between the built-in antenna and the external antenna. Thus, even in an environment where sufficient signal strength cannot be obtained with the built-in antenna, viewing is possible by connecting a highly sensitive antenna to the terminal.

  In the booster according to the present embodiment, the detection circuit detects the signal strength, and the microcontroller controls the switch based on the signal strength. As a result, when an electrical signal with a high signal strength is input from the external antenna, the signal is automatically selected. When the external antenna is removed from the terminal, the electrical signal of the built-in antenna is automatically selected. Will be.

  In addition, since the booster according to this embodiment has a housing, the booster can be fixed to the television set using the housing. As a result, since the housing can be used as a structural material, the structural material for fixing the booster to the television set can be reduced in size.

  In the case of the television broadcast receiving system according to the modified example of the present embodiment, the booster 2 may not include the F-type connector 26. In this case, the booster 2 outputs an electrical signal converted by any of the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23. The external antenna 1 is not used. Thereby, the coaxial cable 12 between the external antenna 1 and the booster 2 is also unnecessary. As a result, the antenna built in the booster 2 and the wideband amplifier 25 are integrally fixed to the television set 3, thereby improving portability. In this case, since the antenna is built in the casing of the booster 2, the landscape of the television broadcast receiving system is not impaired.

  In the case of the television broadcast receiving system according to the modification of the present embodiment, the booster 2 may include a connector other than the coaxial connector instead of the F-type connector 26. An example of such a connector is a pin plug. In this case, the booster 2 is fixed to the television set 3 by the connector. When the booster 2 is connected by such a connector, it is easier to fix the booster 2 to the television set 3 than when the booster 2 is connected by a metal fitting other than the connector. When the booster 2 is fixed to the television set 3, it is possible to reduce the size of the entire television broadcast receiving system.

  In the case of the television broadcast receiving system according to the modification of the present embodiment, the booster 2 may include a metal fitting other than the connector instead of the F-type connector 26. An example of such a metal fitting is a crimp terminal. In this case, the booster 2 is fixed to the television set 3 by the metal fittings. Even when the booster 2 is connected by such a metal fitting, since the booster 2 is directly connected to the television set 3, no coaxial cable is required between the booster 2 and the television set 3. Since no coaxial cable is required, the landscape of the TV broadcast receiving system is not impaired. Since no coaxial cable is required, connection is easier than when a coaxial cable is required.

  In the case of the television broadcast receiving system according to the modification of the present embodiment, the number of antennas built in the booster 2 is not particularly limited. For example, only the first built-in antenna 21 may be built in.

  In the case of the television broadcast receiving system according to the modification of the present embodiment, if the F-type connector 20 is built in, the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 are used. It does not have to be built in.

  Further, in the case of the television broadcast receiving system according to the modification of the present embodiment, if the first built-in antenna 21, the second built-in antenna 22, and the third built-in antenna 23 are built in, an F-type connector is used. 20 may not be built-in. In this case, since the broadcast signal can be received by the built-in antenna, the effects of downsizing the entire broadcast receiving system, simplifying the wiring, beautifying the landscape, and improving portability are further enhanced compared to the case of using an external antenna. Can do.

<Second Embodiment>
FIG. 2 is a diagram showing the configuration of the television broadcast receiving system according to the present embodiment. FIG. 3 is a diagram showing the appearance and arrangement of the television broadcast receiving system according to the present embodiment. 2 and 3, the television broadcast receiving system according to the present embodiment includes a booster 5 and a television set 3. The booster 5 introduces a television broadcast signal that propagates in the air as radio waves to the television set 3.

  The booster 5 includes a built-in antenna 51, a variable gain amplifier 52, a distribution circuit 53, an F-type connector 26, an F-type connector 54, a detection circuit 27, a microcontroller 55, and a power supply circuit inside the casing. 29, a rechargeable battery 56, and an outlet 57. However, the F-type connector 26, the F-type connector 54, and a part of the outlet 57 are exposed outside the casing. The built-in antenna 51 generates an electric signal by converting a television broadcast signal propagating in the air as a radio wave into an electric signal. The electric signal generated by the built-in antenna 51 corresponds to the signal represented by the received radio wave. Thereby, the built-in antenna 51 can supply an electric signal to the variable gain amplifier 52. The variable gain amplifier 52 amplifies the electric signal. The variable gain amplifier 52 can change the gain. The distribution circuit 53 distributes electrical signals to the F-type connector 26 and the F-type connector 54. The F-type connector 54 is a metal fitting that outputs an electrical signal to the outside. The microcontroller 55 feedback-controls the variable gain amplifier 52 so that the gain of the variable gain amplifier 52 becomes an optimum and constant value. The rechargeable battery 56 is a device that stores in advance the power supplied by the power supply circuit 29. The power supply circuit 29 supplies power to each circuit of the booster 5 using the power obtained from the outlet 19 or the rechargeable battery 56. The “each circuit of the booster 5” also includes a variable gain amplifier 52. The outlet 57 supplies power to the television set 3 through the power plug 17 and the power cable 15. As a result, the outlet 57 becomes an instrument that distributes the power supplied from the power supply circuit 29 to the variable gain amplifier 52 and the load of the television set 3.

  Other hardware configurations are the same as those in the first embodiment described above. The function about them is the same. Therefore, detailed description thereof will not be repeated here.

The operation of the booster 5 based on the above structure will be described.
The built-in antenna 51 converts radio waves for television broadcasting into electric signals. The variable gain amplifier 52 amplifies the electric signal generated by the built-in antenna 51 through conversion. The distribution circuit 53 distributes the electric signal amplified by the variable gain amplifier 52 to the F-type connector 26 and the F-type connector 54. The F-type connector 26 and the F-type connector 54 each output an electrical signal. Further, the output signal of the variable gain amplifier 52 is converted into a detection signal corresponding to the signal intensity by the detection circuit 27. The microcontroller 55 feedback-controls the gain of the variable gain amplifier 52 so that the signal strength of the electrical signal output from the variable gain amplifier 52 becomes an optimal and constant value. The microcontroller 55 uses the detection signal output from the detection circuit 27 for feedback control. The power supply circuit 29 and the rechargeable battery 56 supply power to each part of the booster 5. When the power supply circuit 29 can obtain AC power from the outlet 19 via the power plug 18 and the power cable 16, the power supply circuit 29 supplies power to each part of the booster 5. At this time, the power supply circuit 29 charges the rechargeable battery 56. When the power circuit 29 cannot obtain power from the outlet 19, the power circuit 29 obtains power from the rechargeable battery 56.

  The F-type connector 26 is directly connected to the F-type connector 30 of the television set 3. As a result, the booster 5 is directly fixed to the television set 3. In addition, the power circuit 29 and the rechargeable battery 56 of the booster 5 supply power to the power circuit 32 of the television set 3 through the outlet 57, the power plug 17, and the power cable 15.

  As described above, the booster according to the present embodiment is always constant regardless of whether or not the signal strength of the radio wave received by the antenna is changed by the automatic gain control device including the variable amplifier and the detection circuit. A signal with optimal intensity can be supplied to the TV set. As a result, the television broadcast receiving system using the booster according to this embodiment can always obtain a constant and optimal image in addition to the same effects as the television broadcast receiving system according to the first embodiment. Has an effect.

  Further, the booster according to the present embodiment includes a distribution circuit. Thereby, even if the television set does not have a function of distributing the electric signal, the electric signal can be distributed.

  In addition, the booster according to the present embodiment includes an outlet for supplying power to the television set. Thereby, the power source of the booster and the power source of the television set can be covered by a single power cable. Since the power source of the booster and the power source of the television set are covered by a single power cable, the problem of occupying the outlets one by one can be solved.

  Further, the booster according to the present embodiment includes a rechargeable battery and a power supply circuit for charging the rechargeable battery. This allows you to charge the rechargeable battery while receiving power from the outlet, and when you carry the TV broadcast receiving system in places where there is no outlet, such as outdoors, the TV broadcast receiving system that can supply power from the rechargeable battery. Can be provided.

<Third Embodiment>
FIG. 4 is a diagram showing the configuration of the television broadcast receiving system according to the present embodiment. Referring to FIG. 4, the television broadcast receiving system according to the present embodiment includes a booster 6 and a television set 7. The booster 6 supplies a television broadcast signal in the air to the television set 7 as an electrical signal. The television set 7 outputs video based on the electrical signal supplied by the booster 6.

  Booster 6 includes a built-in antenna 51, wideband amplifier 25, F-type connector 26, and capacitor 60 inside the housing. However, a part of the F-type connector 26 is exposed outside the housing. The capacitor 60 prevents the DC power from being supplied from the television set 7 on the path through which the wideband amplifier 25 outputs an electrical signal. For this reason, the capacitor 60 can prevent the electrical signal output from the wideband amplifier 25 from being adversely affected by the power supplied from the television set 7.

  In the case of the present embodiment, the F-type connector 26 is connected to the wideband amplifier 25 through two paths. The first path is a path through the capacitor 60. The first path is a path through which the wideband amplifier 25 outputs an electrical signal. The second path is a path that does not pass through the capacitor 60. The second path is a path that is at least partially different from the path through which the wideband amplifier 25 outputs an electrical signal and that is through the F-type connector 26.

  The television set 7 includes a tuner unit 71, an F-type connector 30 and a power supply circuit 32. The tuner unit 71 extracts a predetermined broadcast station signal from the electrical signal output from the booster 6.

  Tuner unit 71 includes a capacitor 710. The capacitor 710 prevents the power supplied from the power supply circuit 32 from adversely affecting each circuit of the television set 7 (not shown).

  Other hardware configurations are the same as those in the first and second embodiments described above. The function about them is the same. Therefore, detailed description thereof will not be repeated here.

The operation of the booster 6 based on the above structure will be described.
The built-in antenna 51 converts radio waves for television broadcasting into electric signals. The wideband amplifier 25 amplifies the electric signal converted by the built-in antenna 51. The electric signal amplified by the wideband amplifier 25 is output to the television set 7 via the capacitor 60 and the F-type connector 26. The F-type connector 26 is directly connected to the F-type connector 30 of the television set 7. Thereby, the booster 6 is fixed to the television set 7. At this time, the power supply circuit 32 of the television set 7 supplies power to the booster 6 via the tuner unit 71 and the F-type connector 30. The wide band amplifier 25 of the booster 6 amplifies the electric signal by the electric power supplied via the F-type connector 26. Thereby, the electric wire which comprises the 2nd path | route mentioned above at least partially differs from the path | route where the wideband amplifier 25 outputs an electrical signal, and direct current power is supplied to the wideband amplifier 25 by the path | route via the F-type connector 26. It becomes the electric wire to supply.

  As described above, the booster according to the present embodiment can receive power supply from the F-type connector built in the television set. Thereby, the booster which does not require a power supply circuit and a power supply plug can be provided. As a result, the television broadcast receiving system using the booster according to the present embodiment has the effect of reducing the number of outlets to be used in addition to the same effect as the television broadcast receiving system according to the first embodiment.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a figure showing the structure of the television broadcast receiving system which concerns on the 1st Embodiment of this invention. It is a figure showing the structure of the television broadcast receiving system which concerns on the 2nd Embodiment of this invention. It is a figure showing the external appearance and arrangement | positioning of the television broadcast receiving system which concerns on the 2nd Embodiment of this invention. It is a figure which shows the basic composition of the television broadcast receiving system which concerns on the 3rd Embodiment of this invention. It is a figure showing the external appearance and arrangement | positioning of a general television broadcast receiving system.

Explanation of symbols

  1 external antenna, 2, 5, 6, 8 booster, 3, 7 TV set, 9, 12 coaxial cable, 11, 20, 26, 30, 54 F-type connector, 15, 16 power cable, 17, 18 power plug, 19,57 Outlet, 21 First built-in antenna, 22 Second built-in antenna, 23 Third built-in antenna, 24 switch, 25 Wide band amplifier, 27 Detection circuit, 28, 55 Microcontroller, 29, 32 Power supply circuit, 31, 71 Tuner unit, 51 built-in antenna, 52 variable gain amplifier, 53 distribution circuit, 56 rechargeable battery, 60,710 capacitor.

Claims (14)

Amplifying means for amplifying the first electrical signal;
First supply means for supplying the first electrical signal to the amplification means;
Second supply means for supplying power to the amplification means;
A first output fitting that can be directly connected to a fitting of a receiving device that is a device that can receive an electric signal and that outputs a second electric signal that is an electric signal amplified by the amplification means to the fitting of the receiving device. ,booster.   The booster according to claim 1, wherein the first output fitting includes a connector.   The booster according to claim 2, wherein the connector includes a coaxial connector.   The booster according to claim 1, wherein the first supply means includes an antenna that generates the first electric signal corresponding to a signal represented by the received radio wave.   The booster according to claim 4, wherein the booster further includes a housing for accommodating at least the amplification means and the antenna. The first supply means includes a plurality of antennas that respectively generate the first electrical signals corresponding to signals represented by received radio waves,
The booster according to claim 1, further comprising first switching means for switching a signal to be supplied to the amplification means between the first electric signals generated by the plurality of antennas. The booster is
Measuring means for measuring the signal strength of the second electrical signal;
The booster according to claim 6, further comprising: a first control unit for controlling the first switching unit so as to switch a signal supplied to the amplification unit according to a signal intensity measured by the measurement unit. . The first supply means includes
Relay means for relaying the first electrical signal generated by the first antenna to the amplification means;
A second antenna that generates the first electrical signal corresponding to the signal represented by the received radio wave,
The booster is configured to switch a second signal to be supplied to the amplifying unit between the first electric signal relayed by the relay unit and the first electric signal generated by the second antenna. The booster according to claim 1, further comprising switching means. The booster is
Measuring means for measuring the signal strength of the second electrical signal;
The booster according to claim 8, further comprising: a second control unit for controlling the second switching unit so as to switch a signal supplied to the amplification unit according to a signal intensity measured by the measurement unit. . The booster is
Measuring means for measuring the signal strength of the second electrical signal;
The booster according to claim 1, further comprising third control means for controlling the amplification means so that the gain of the amplification means becomes a constant value. The booster is
A second output fitting for outputting the second electrical signal;
The booster according to claim 1, further comprising first distribution means for distributing the second electric signal to the first output fitting and the second output fitting.   The booster according to claim 1, further comprising second distribution means for distributing the power supplied by the second supply means to the amplification means and an arbitrary load.   The booster according to claim 1, wherein the booster further includes power storage means for storing power supplied by the second supply means. The second supply means includes
Means for supplying direct current power to the amplifying means at least partially different from the path for outputting the second electrical signal and via the first output fitting;
The booster according to claim 1, further comprising prevention means for preventing supply of the DC power in a path for outputting the second electric signal.

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