CN104702359A - High-frequency receiver - Google Patents
High-frequency receiver Download PDFInfo
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- CN104702359A CN104702359A CN201510068671.6A CN201510068671A CN104702359A CN 104702359 A CN104702359 A CN 104702359A CN 201510068671 A CN201510068671 A CN 201510068671A CN 104702359 A CN104702359 A CN 104702359A
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- signal
- distributor
- regulation
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- receiver
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Abstract
The invention provides a high-frequency receiver. The high-frequency receiver comprises a receiver body (40); distributors (3a, 3b), filter circuits (4a, 4b) for processing an RF signal, AGC (Automatic Gain Control) amplification circuits (Sa, Sb), mixers (6a and 6b), local oscillation circuits (8a, 8b) and demodulating circuits (15a, 15b) are arranged on a substrate (12) in a sealing box (9) equipped with a bottom; the sealing box (9) is divided by separating parts (41) into six areas and sealed through a sealing cover; input connectors (1a, 1b) are mounted on the first side surface of the sealing box (9); an output connector (7a) of the RF signal distributed by the output distributor (3a) is mounted on the second side surface; an output connector (7b) of the RF signal distributed by the output distributor (3b) is mounted on the third side surface. The high-frequency receiver which contributes to small size and low price can be obtained.
Description
Technical field
the present invention relates to HF receiver, particularly relate to the compound HF receiver that can receive terrestrial broadcasting and satellite broadcasting.
Background technology
Use HF receiver, to receive terrestrial broadcasting and satellite broadcasting.As an example of this HF receiver, tuner is described.As shown in Figure 7, existing tuner 130 configures motherboard 119 in casing 120, by terrestrial broadcasting dispenser unit 113, satellite broadcasting dispenser unit 114, microcomputer 116, signal processing circuit 117 and power circuit 118 on this motherboard 119, be arranged on the position of regulation respectively.
As shown in Figure 8, HF receiver body 140 arranges filter circuit 104a and 104b in seal box 109, AGC (automatic growth control) amplifying circuit 105a and 105b, frequency mixer 106a and 106b, local oscillation circuit 108a and 108b and demodulator circuit 115a and 115b, using them as circuit unit, and seal cover 110 (with reference to figure 7) is utilized to be sealed.By these filter circuits 104a, 104b etc., terrestrial broadcasting RF (radio frequency) signal use and satellite broadcasting RF signal 2 groups are respectively set.In seal box 109, separated according to circuit unit by partition member 141.Filter circuit 104a, 104b etc. are configured in the regulation region that this partition member 141 separates.
Then, the function of tuner 130 is described.First, the RF signal of terrestrial broadcasting exported separately with dispenser unit 113 and satellite broadcasting dispenser unit 114 by terrestrial broadcasting and the RF signal of satellite broadcasting, be input to input connector lOla, lOlb respectively.At AGC amplifying circuit 105a. filter circuit 104a. frequency mixer 106a, local oscillation circuit 108a and each circuit unit of demodulator circuit 115a, process is input to the RF signal of the terrestrial broadcasting of input connector lOla.
And at AGC amplifying circuit 105b, filter circuit 104b, frequency mixer 106b, local oscillation circuit 108b and each circuit unit of demodulator circuit ll5b, process is input to the RF signal of the satellite broadcasting of input connector lOlb.Using the RF signal after each process as restituted signal, output to signal processing circuit 117.
At this moment, the often high order harmonic component of the RF signal of terrestrial broadcasting, overlapping with the RF signal of satellite broadcasting and local oscillation signal respectively and produce interference.And, the often local oscillation signal high order harmonic component of terrestrial broadcasting, overlapping with the RF signal of satellite broadcasting and local oscillation signal respectively and produce interference.Therefore, in order to prevent this interference, as described above, separated in seal box 109 according to circuit unit by partition member 141, thus seek the electric isolution of signal.Moreover, as an example of the document of announcement tuner 130, there is the practical new case of Japan to register No. 3096372 publication.
But in the tuner as existing HF receiver, there are the following problems.In recent years, television receiver or DVD (Digital Versatile Disc) logging machine etc. require slimming and miniaturization, also carry out low price.
Therefore, in order to tackle these requirements, tuner slimming or miniaturization is also required.
In above-mentioned tuner 130, as shown in Figure 7, built-inly receive respectively and process the HF receiver body 140 of 2 RF signals of terrestrial broadcasting and satellite broadcasting.Therefore, need 2 groups of RF distributors 113,114, must guarantee that configuration 2 HF receiver bodies 140 and 2 RF distributors 113,114 amount to the space of 4 unit in the casing of tuner 130 120, this point becomes and hinders miniaturized an etc. factor.And need the operation of this cellular installation to motherboard 119, this makes cost increase, become the factor hindering low price.
Summary of the invention
The present invention completes to solve the problem, and its object is to provide a kind of and seeks miniaturization and low price turned into the HF receiver of contribution.
HF receiver of the present invention, receives terrestrial broadcasting and satellite broadcasting, is wherein equipped with: the housing of regulation; 1st distributor; 2nd distributor; 1st circuit; 2nd circuit; 1st lead-out terminal and the 2nd lead-out terminal.1st distributor is arranged in housing, distributes the 1st signal of the terrestrial broadcasting of input.2nd distributor is arranged in housing, distributes the 2nd signal of the satellite broadcasting of input.1st circuit is arranged in housing, exports as restituted signal using after the 1st signal transacting that the 1st distributor distributes.2nd circuit is arranged in housing, exports as restituted signal using after the 2nd signal transacting that the 2nd distributor distributes.1st lead-out terminal is configured in housing, and exports the 1st signal of the 1st distributor distribution.2nd lead-out terminal is configured in housing, and exports the 2nd signal of the 2nd distributor distribution.
According to this composition, except the 1st circuit processing the 1st signal of terrestrial broadcasting and the 2nd signal of satellite broadcasting and the 2nd circuit, also the 1st distributor and the 2nd distributor that distribute the 1st signal and the 2nd signal are arranged in the housing becoming HF receiver body.Thus, compared with the state that the 1st distributor and the 2nd distributor and housing are provided separately, fill the 1st distributor and the 2nd distributor in HF receiver body adduction, can space be saved and cut down installation work-hour.Its result, can seek HF receiver miniaturization, and can turn contribution into low price.
Specifically, be preferably equipped with the substrate of installation the 1st distributor, the 2nd distributor, the 1st circuit and the 2nd circuit, and housing comprises the receipts dress seal box with the end of this substrate and the seal cover of close encapsulation box.
As the position of the 1st lead-out terminal and the 2nd lead-out terminal, such as, be good to be configured in the side surface part of seal box.Also be configurable on seal cover.
As the 1st lead-out terminal and described 2nd lead-out terminal, be good with the socket specified; Preferably by this jack configurations in seal box, the inserting hole of the plug of the regulation of gang socket is such as set on seal cover.
As socket and plug, available F type socket and F type plug, RCA pin jack and RCA pin plug or SMB socket and SMB connector.
And, be preferably equipped with and be arranged on the guide part around inserting hole, plug being directed to socket, to make plug easily be connected to socket.
Accompanying drawing explanation
The detailed description of the invention understood below in conjunction with accompanying drawing can understand the present invention above-mentioned and other object, feature, inventive point and advantage.
Fig. 1 is the partial perspective view of the inside that tuner involved by embodiment of the present invention is shown.
Fig. 2 is the vertical view of the internal circuit composition that this execution mode medium-high frequency receiver body is shown.
Fig. 3 is the stereogram that this execution mode medium-high frequency receiver body is shown.
Fig. 4 illustrates the partial perspective view as the F type socket of out connector and F type plug in this execution mode.
Fig. 5 illustrates in this execution mode as the RCA pin jack of out connector and the partial perspective view of RCA pin plug.
Fig. 6 illustrates in this execution mode as the SMB socket of out connector and the partial perspective view of SMB connector.
Fig. 7 illustrates that oneself has the partial perspective view of the inside of tuner.
Fig. 8 is the vertical view illustrating that oneself is made up of the internal circuit of the HF receiver body in tuner.
Embodiment
The tuner of the HF receiver as a routine embodiment of the present invention is described.As shown in Figure 1, tuner 30 configures motherboard 19 in casing 20, and this motherboard 19 installs HF receiver body 40.Except this HF receiver body 40, also respectively microcomputer 16, signal processing circuit 17 and power circuit 18 etc. are arranged on the position of regulation.
As shown in Figure 2, HF receiver state 40, in seal box 9 with the end, arranges chopped-off head amplifier 2a, distributor 3a, filter circuit 4a, AGC amplifying circuit 5a, frequency mixer 6a, local oscillation circuit 8a and demodulator circuit 15a, as the circuit unit of terrestrial broadcasting.And, as the circuit unit of satellite broadcasting, chopped-off head amplifier 2b, distributor 3b are set equally, filter circuit 4b, AGC amplifying circuit 5b, frequency mixer 6b, local oscillation circuit 8b and demodulator circuit 15b.
In seal box 9, correspond to circuit unit by partition member 41 and be separated into 6 districts.The chopped-off head amplifier 2a of terrestrial broadcasting and distributor 3a is arranged on the 1st district 9a, filter circuit 4a, AGC amplifying circuit 5a. frequency mixer 6a and demodulator circuit 15a is arranged on the 2nd district 9b.And, local oscillation circuit 8a is arranged on the 3rd district 9c.The chopped-off head amplifier 2b of satellite broadcasting and distributor 3b is arranged on the 4th district 9d, and by filter circuit 4b, AGC amplifying circuit 5b, frequency mixer 6b and demodulator circuit 15b is arranged on the 5th district 9e.And, local oscillation circuit Sb is arranged on the 6th district 9f.
As shown in Figure 1, the seal box with the end 9 receiving dress circuit unit is inner, is sealed by seal cover 10.At the 1st side 99a of this seal box 9 with the end, the connector 1b of the connector la of the RF signal of input terrestrial broadcasting and the RF signal of input satellite broadcasting is installed.Again, at the 2nd side 99b of seal box 9, the out connector 7a of the RF signal exporting the terrestrial broadcasting that distributor 3a distributes is installed.And, at the 3rd side 99c of seal box 9, the out connector 7b of the RF signal exporting the satellite broadcasting that distributor 3b distributes is installed.
Then, the function of tuner 30 is described.First, the RF signal of terrestrial broadcasting inputted from input connector la, after chopped-off head amplifier 2a is amplified, is input to distributor 3a.The RF signal that the RF signal being input to distributor 3a is become to deliver to AGC discharge circuit 5a etc. by power division and the RF signal exported toward the outside of HF receiver body 40.The RF signal that outside toward HF receiver body 40 exports is outputted to outside through out connector 7a.On the other hand, deliver to the RF signal of AGC amplifying circuit 5a at filter circuit 4a, frequency mixer 6a, demodulator circuit 15a and local oscillation circuit 8a process.Signal after process is outputted to signal processing circuit 17 as restituted signal.
Secondly, the RF signal of the satellite broadcasting inputted from input connector 1b, after chopped-off head amplifier 2b is amplified, is input to distributor 3b.The RF signal of distributor 3b will be input to, the RF signal becoming to deliver to AGC discharge circuit 5b etc. by power division and the RF signal exported toward the outside of HF receiver body 40.
By the RF signal that the outside toward HF receiver body 40 exports, output to outside through out connector 7b.
On the other hand, deliver to the RF signal of AGC amplifying circuit 5b, at filter circuit 4b, frequency mixer 6b, demodulator circuit 15b and local oscillation circuit 8b process.Signal after process is outputted to signal processing circuit 17 as restituted signal.
Described tuner 30 in the seal box 9 of HF receiver body 40, together with process terrestrial broadcasting with or the allocated circuit of RF signal of satellite broadcasting, arrange and distribute and export the distributor 3a of RF signal, 3b.Thus, the situation that distributor and HF receiver body separated in the past is become HF receiver body 40 and distributor 3a, and 3b is integrated, thus can save space and cut down installation work-hour.Its result, can seek the miniaturization of the tuner 30 as HF receiver, and can turn contribution into low price.Again, in the HF receiver body 40 of tuner 30, chopped-off head amplifier 2a, 2b configures low noise amplifier, to make the NF noise factor of tuner 30) good, but time too large from the RF signal of input connector la. 1b input, as distortion component, produce high order harmonic component.And local oscillation circuit 8a. 8b, except local oscillation signal, also produces the high order harmonic component of local oscillation signal.
Even if when so easy generation high order harmonic component, by the circuit unit utilizing partition member 41 to separate the circuit unit of the RF signal of process terrestrial broadcasting and the RF signal of process satellite broadcasting, the RF signal of terrestrial broadcasting and the RF signal of satellite broadcasting also reliably can be suppressed to produce and to disturb.
Alternative 1
Act following situations is that example is described: the HF receiver body 40 of described tuner 30, the out connector 7b of the RF signal of the satellite broadcasting that the out connector 7a installing at the 2nd mutually opposing side 99b and the 3rd side 99c of seal box 9 the RF signal exporting the terrestrial broadcasting distributed respectively distributes with output.In addition, as shown in Figure 3, also out connector 7a, 7b can be contained on such as seal cover 10.In the case, the RF signal of terrestrial broadcasting and the RF signal of satellite broadcasting also can be suppressed to produce disturb.
Alternative 2
As out connector 7a, 7b, best application socket 21 and plug 25 (with reference to figure 3).As an example of this socket and plug, as shown in Figure 4, the F type socket 22 that available high frequency characteristics is good and F type plug 26.In the case, the center contact 26a of F type plug 26 is connected at the central contact hole 22a of F type socket 22.
Again, as shown in Figure 5, also can by RCA (Radio Cooperation of America: the Radio Corporation of America) pin jack 23 and the RCA pin plug 27 being such as widely used in terrestrial broadcasting.In the case, in the central contact hole of RCA pin jack 23, connect the central contact pins 27ao of RCA pin plug 27
As shown in Figure 6, SMB (SubMiniature Type B: the Type B microminiature) socket 24 also used in available such as gigahertz (GHz) band communication equipment and SMB connector 28.In the case, the center contact 28a of SMB connector 28 is connected at the central contact hole 24a of SMB socket 24.
By with the high socket of this coaxial configuration application shielding properties and plug, can suppress the signal radiation from HF receiver internal body or the signal from outside incident.Again, as shown in Figure 3, also socket 21 can be configured in seal box 9, and the guide part 11 being die-cut into the opening portion erected is set on seal cover 10.Thus, the insertion of plug 25 pairs of sockets 21 can be carried out easily.
Describe in detail and disclose the present invention, but this is only for example, and non-limiting; Should be expressly understood that scope of the present invention is explained by appended claims.
Claims (6)
1. a HF receiver, is characterized in that, is equipped with: the housing of regulation; Be arranged in described housing, and distribute the 1st distributor of the 1st signal of the terrestrial broadcasting of input; Be arranged in described housing, and distribute the 2nd distributor of the 2nd signal of the satellite broadcasting of input; Be arranged in described housing, and after described 1st signal distributed by described 1st distributor in process, the 1st circuit of regulation that exports as restituted signal; Be arranged in described housing, and after described 2nd signal distributed by described 2nd distributor in process, the 2nd circuit of regulation that exports as restituted signal; Be configured in described housing, and export the 1st lead-out terminal of described 1st signal distributed by described 1st distributor; And be configured in described housing; and export the 2nd lead-out terminal of described 2nd signal distributed by described 2nd distributor; be equipped with the substrate installing described 1st distributor, described 2nd distributor, described 1st circuit and described 2nd circuit, described housing comprises: the seal box with the end receiving described substrate; And close the seal cover of described seal box, by described 1st lead-out terminal and described 2nd lead-out terminal, be configured in the side surface part of described seal box, by described 1st lead-out terminal and described 2nd lead-out terminal, be configured on described seal cover.
2. HF receiver as described in claim 1, it is characterized in that, described 1st lead-out terminal and described 2nd lead-out terminal are the sockets of regulation, by the described jack configurations of regulation in described seal box, and the inserting hole of the plug of the regulation connecting described socket is set on described seal cover.
3. HF receiver as described in claim 2, it is characterized in that, the described socket of regulation is F type socket, and the described plug of regulation is F type plug.
4. HF receiver as described in claim 2, it is characterized in that, the described socket of regulation is RCA pin jack, and the described plug of regulation is RCA pin plug.
5. HF receiver as described in claim 2, it is characterized in that, the described socket of regulation is SMB socket, and the described plug of regulation is SMB connector.
6. HF receiver as described in claim 2, is characterized in that, be equipped with guide part, this guide part is arranged on around described inserting hole, and for described plug is directed to described socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068671.6A CN104702359A (en) | 2015-02-10 | 2015-02-10 | High-frequency receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510068671.6A CN104702359A (en) | 2015-02-10 | 2015-02-10 | High-frequency receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104702359A true CN104702359A (en) | 2015-06-10 |
Family
ID=53349164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510068671.6A Pending CN104702359A (en) | 2015-02-10 | 2015-02-10 | High-frequency receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104702359A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004071080A1 (en) * | 2003-02-06 | 2004-08-19 | Matsushita Electric Industrial Co., Ltd. | Antenna switching device and method thereof |
| CN1815897A (en) * | 2005-01-31 | 2006-08-09 | 夏普株式会社 | Integrated tuner for satellite and terrestrial broadcast reception |
| CN101312381A (en) * | 2007-05-24 | 2008-11-26 | 夏普株式会社 | High frequency receiving apparatus |
-
2015
- 2015-02-10 CN CN201510068671.6A patent/CN104702359A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004071080A1 (en) * | 2003-02-06 | 2004-08-19 | Matsushita Electric Industrial Co., Ltd. | Antenna switching device and method thereof |
| CN1815897A (en) * | 2005-01-31 | 2006-08-09 | 夏普株式会社 | Integrated tuner for satellite and terrestrial broadcast reception |
| CN101312381A (en) * | 2007-05-24 | 2008-11-26 | 夏普株式会社 | High frequency receiving apparatus |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |