CN111866556B - Signal direct connection and amplification compatible module for television antenna reception - Google Patents
Signal direct connection and amplification compatible module for television antenna reception Download PDFInfo
- Publication number
- CN111866556B CN111866556B CN201910364875.2A CN201910364875A CN111866556B CN 111866556 B CN111866556 B CN 111866556B CN 201910364875 A CN201910364875 A CN 201910364875A CN 111866556 B CN111866556 B CN 111866556B
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- China
- Prior art keywords
- direct current
- circuit
- control circuit
- current control
- amplifying circuit
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a signal direct-connection and amplification compatible module for television antenna reception, which is connected between an antenna and a set top box and is used for transmitting signals received by the antenna to the set top box, and comprises a direct-connection circuit, an amplifying circuit and a direct-current control circuit which are connected in parallel; the input end of the direct current control circuit is connected with a direct current power supply preset in a room, the output end of the direct current control circuit is respectively connected with the direct current circuit and the amplifying circuit, when the direct current control circuit outputs direct current voltage, the direct current circuit is cut off, the amplifying circuit is conducted, and when the direct current control circuit does not output direct current voltage, the direct current circuit is conducted, and the amplifying circuit is cut off.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a signal direct connection and amplification compatible module for television antenna reception.
Background
When the television receives signals through the outdoor antenna, the television generally has two working states of a through type and an amplifying type, the existing antenna can only singly realize one working state, so that a user cannot freely and flexibly select the antenna according to the strength of the signals in the area, the trial experience of the user is seriously influenced, and when the user needs to replace the antenna, the antenna is generally erected at an outdoor high place, so that the operation of maintainers is greatly inconvenient, and certain potential safety hazards are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the signal direct connection and amplification compatible module for television antenna reception, which can effectively improve the signal receiving quality, improve the user experience and has good applicability.
In order to achieve the above purpose, the present invention provides the following solutions: a signal pass-through and amplification compatible module for television antenna reception is connected between the antenna and the set top box for transmitting the signal received by the antenna to the set top box, and comprises a pass-through circuit and an amplification circuit which are connected in parallel, and a direct current control circuit; the input end of the direct current control circuit is connected with a direct current power supply preset in a room, the output end of the direct current control circuit is respectively connected with the direct current circuit and the amplifying circuit, when the direct current control circuit outputs direct current voltage, the direct current circuit is cut off, the amplifying circuit is conducted, and when the direct current control circuit does not output direct current voltage, the direct current circuit is conducted, and the amplifying circuit is cut off.
Further, the through circuit is connected with a radio frequency switch in series, wherein the output end of the direct current control circuit is connected with the control end of the radio frequency switch, when the direct current control circuit outputs direct current voltage, the radio frequency switch is closed to enable the through circuit to be cut off, and when the direct current control circuit does not output direct current voltage, the radio frequency switch is opened to enable the through circuit to be conducted.
Further, the amplifying circuit is connected with an LNA in series, wherein the output end of the direct current control circuit is respectively connected with the input end and the output end of the LNA, when the direct current control circuit outputs direct current voltage, the LNA is turned on to enable the amplifying circuit to be turned on, and when the direct current control circuit does not output direct current voltage, the LNA is turned off to enable the amplifying circuit to be turned off.
Further, the direct current power supply preset indoors is a set top box or an independent power supply.
Further, the amplifying circuit further comprises two switching diodes respectively connected in series with the input end and the output end of the LNA amplifier, and when the pass-through circuit is conducted, the two switching diodes are cut off so that the pass-through circuit is isolated from the amplifying circuit.
Compared with the prior art, the invention has the advantages that a user can directly switch the receiving state of the antenna indoors according to the signal condition of the region where the user is located, the universality is strong, the antenna is not required to be replaced, the operation is simple, convenient and safe, the use experience of the user is greatly improved, and the receiving quality of television signals is also effectively improved; the module has simple structure, low manufacturing difficulty and low cost, and is suitable for mass production.
Drawings
Fig. 1 is a block schematic diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
The antenna comprises a 1-antenna, a 2-set top box, a 3-through circuit, a 31-radio frequency switch, a 4-amplifying circuit, a 41-LNA amplifier, a 5-direct current control circuit and a 6-switch diode.
Detailed Description
The invention is further illustrated by the following examples:
referring to fig. 1 and 2, the invention is a signal pass-through and amplification compatible module for receiving television antenna, which is connected between an antenna 1 and a set top box 2 and is used for transmitting signals received by the antenna 1 to the set top box 2, the module comprises an impedance matching circuit, a pass-through circuit 3 and an amplifying circuit 4 which are connected in parallel with each other, and a direct current control circuit 5, wherein the pass-through circuit 3 is used for transmitting received television signals to the set top box 2 directly with low loss, and the amplifying circuit 4 is used for amplifying the received television signals and then transmitting the amplified television signals to the set top box 2; the input end of the direct current control circuit 5 is connected with a preset direct current power supply (the direct current power supply is provided by the set top box 2 in the embodiment), the output end is respectively connected with the direct current circuit 3 and the amplifying circuit 4, when the direct current control circuit 5 outputs direct current voltage, the direct current circuit 3 is turned off, the amplifying circuit 4 is turned on, when the direct current control circuit 5 does not output direct current voltage, the direct current circuit 3 is turned on, and the amplifying circuit 4 is turned off.
In some embodiments, the dc power source is a stand-alone dc power source disposed indoors.
Through the module, a user can select the working state of the module according to the intensity of the regional signal where the user is actually located by directly adopting a mode of remotely controlling the set top box 2 indoors or a mode of directly operating the set top box 2, for example, the regional signal where the user is located is weaker (the region far away from the transmitting base station), the user supplies direct-current voltage to the module by setting the set top box 2 so that the amplifying circuit 4 is conducted, the direct-current circuit 3 is cut off, and the signal received from the antenna 1 is amplified by an amplifier of the amplifying circuit 4 after being subjected to impedance matching of the impedance matching circuit and finally transmitted to the set top box 2; if the signal in the area is stronger (the area close to the transmitting base station), the user sets the set top box 2 not to pass through direct current voltage to the module, so that the amplifying circuit 4 is cut off, and the direct current circuit 3 is conducted, so that the signal after impedance matching is directly transmitted to the set top box 2 through the direct current circuit 3, and the self-excitation phenomenon caused by high gain is avoided; the use experience of the user is greatly improved, and the receiving quality of the signal is greatly improved.
In this embodiment, the through circuit 3 is connected in series with the rf switch 31, the output end of the dc control circuit 5 is connected to the control end of the rf switch 31, and when the dc control circuit 5 outputs the dc voltage to the rf switch 31, the rf switch 31 is turned into a closed state, i.e. the through circuit 3 is turned off; the amplifying circuit 4 is connected in series with the LNA amplifier 41, the output end of the dc control circuit 5 is connected to the input end and the output end of the LNA amplifier 41, and when the dc control circuit 5 outputs the dc voltage to the LNA amplifier 41, the LNA amplifier 41 is turned into a conducting amplifying state, i.e. the amplifying circuit 4 is conducted.
In the present embodiment, the rf switch 31 is of the type BF1108R, and the LNA amplifier 41 is constituted by a transistor of the type BF776 series.
In this embodiment, the amplifying circuit 4 further includes two switching diodes 6 respectively connected in series to the input end and the output end of the LNA amplifier 41, and when the pass circuit 3 is turned on, the two switching diodes 6 are turned off to isolate the pass circuit 3 from the amplifying circuit 4, so that interference of the amplifying circuit 4 during operation of the direct current circuit is effectively avoided, and signal receiving quality is improved.
In this embodiment, the switching diode 6 is of the type BAP65-02.
In this embodiment, the module is mounted within the vibrator box.
In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present invention are included in the protection scope of the present invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the invention as defined in the accompanying claims.
Claims (3)
1. A signal pass-through and amplification compatible module for television antenna reception, connected between an antenna (1) and a set-top box (2) for delivering signals received by the antenna (1) to the set-top box (2), characterized in that: comprises a direct-current circuit (3) and an amplifying circuit (4) which are connected in parallel, and a direct-current control circuit (5); the input end of the direct current control circuit (5) is connected with a preset direct current power supply, the output end of the direct current control circuit is respectively connected with the direct current circuit (3) and the amplifying circuit (4), when the direct current control circuit (5) outputs direct current voltage, the direct current circuit (3) is cut off, the amplifying circuit (4) is conducted, and when the direct current control circuit (5) does not output direct current voltage, the direct current circuit (3) is conducted, and the amplifying circuit (4) is cut off; the direct current circuit (3) is connected with a radio frequency switch (31) in series, wherein the output end of the direct current control circuit (5) is connected with the control end of the radio frequency switch (31), when the direct current control circuit (5) outputs direct current voltage, the radio frequency switch (31) is closed to enable the direct current circuit (3) to be cut off, and when the direct current control circuit (5) does not output direct current voltage, the radio frequency switch (31) is opened to enable the direct current circuit (3) to be conducted; the LNA amplifier (41) is connected in series to the amplifying circuit (4), wherein the output end of the direct current control circuit (5) is respectively connected with the input end and the output end of the LNA amplifier (41), when the direct current control circuit (5) outputs direct current voltage, the LNA amplifier (41) is turned on to enable the amplifying circuit (4) to be turned on, and when the direct current control circuit (5) does not output direct current voltage, the LNA amplifier (41) is turned off to enable the amplifying circuit (4) to be turned off; the amplifying circuit (4) further comprises two switching diodes (6) which are respectively connected in series with the input end and the output end of the LNA amplifier (41), and when the through circuit (3) is conducted, the two switching diodes (6) are cut off so that the through circuit (3) is isolated from the amplifying circuit (4).
2. A signal pass-through and amplification compatible module for television antenna reception as claimed in claim 1, wherein: the direct current power supply is provided by the set top box (2) or is an independent power supply arranged indoors.
3. A signal pass-through and amplification compatible module for television antenna reception as claimed in claim 1, wherein: the module is arranged in a preset vibrator box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364875.2A CN111866556B (en) | 2019-04-30 | 2019-04-30 | Signal direct connection and amplification compatible module for television antenna reception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910364875.2A CN111866556B (en) | 2019-04-30 | 2019-04-30 | Signal direct connection and amplification compatible module for television antenna reception |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111866556A CN111866556A (en) | 2020-10-30 |
| CN111866556B true CN111866556B (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910364875.2A Active CN111866556B (en) | 2019-04-30 | 2019-04-30 | Signal direct connection and amplification compatible module for television antenna reception |
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| CN (1) | CN111866556B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004328400A (en) * | 2003-04-24 | 2004-11-18 | Fujitsu Ten Ltd | Antenna amplifier and shared antenna amplifier |
| CN201122649Y (en) * | 2007-05-24 | 2008-09-24 | 深圳国人通信有限公司 | Radio frequency converting switch |
| CN101540585A (en) * | 2008-03-21 | 2009-09-23 | 珠海全志科技有限公司 | Amplifier |
| WO2012133320A1 (en) * | 2011-03-29 | 2012-10-04 | マスプロ電工株式会社 | Indoor antenna |
| CN109104177A (en) * | 2018-09-13 | 2018-12-28 | 浙江诺益科技有限公司 | A kind of radio frequency converting switch |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080237U (en) * | 1990-12-20 | 1991-07-03 | 慈溪市坎东电气机械厂 | Amplifier of tv remote rotary antenna |
| JPH11164212A (en) * | 1997-11-28 | 1999-06-18 | Mitsumi Electric Co Ltd | Antenna booster circuit for vtr |
| EP1471649B1 (en) * | 2003-04-25 | 2007-04-04 | Fujitsu Ten Limited | Antenna amplifier and shared antenna amplifier |
| JP2007295146A (en) * | 2006-04-24 | 2007-11-08 | Niigata Seimitsu Kk | Automatic gain control circuit and low noise amplifier circuit |
| US9369755B2 (en) * | 2013-09-09 | 2016-06-14 | New Choices Entertainment Incorporated | Antenna sub-system for receiving multiple digital broadcast television signals |
| JP2015061240A (en) * | 2013-09-19 | 2015-03-30 | ソニー株式会社 | Transmitter and transmission method, receiver and reception method, and computer program |
| CN103973291B (en) * | 2014-04-22 | 2017-02-01 | 华为技术有限公司 | Radio frequency antenna switch |
-
2019
- 2019-04-30 CN CN201910364875.2A patent/CN111866556B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004328400A (en) * | 2003-04-24 | 2004-11-18 | Fujitsu Ten Ltd | Antenna amplifier and shared antenna amplifier |
| CN201122649Y (en) * | 2007-05-24 | 2008-09-24 | 深圳国人通信有限公司 | Radio frequency converting switch |
| CN101540585A (en) * | 2008-03-21 | 2009-09-23 | 珠海全志科技有限公司 | Amplifier |
| WO2012133320A1 (en) * | 2011-03-29 | 2012-10-04 | マスプロ電工株式会社 | Indoor antenna |
| CN109104177A (en) * | 2018-09-13 | 2018-12-28 | 浙江诺益科技有限公司 | A kind of radio frequency converting switch |
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| Publication number | Publication date |
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| CN111866556A (en) | 2020-10-30 |
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