CN103259991A - Dual output tuner for receiving satellite television signals - Google Patents
Dual output tuner for receiving satellite television signals Download PDFInfo
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- CN103259991A CN103259991A CN2013101984484A CN201310198448A CN103259991A CN 103259991 A CN103259991 A CN 103259991A CN 2013101984484 A CN2013101984484 A CN 2013101984484A CN 201310198448 A CN201310198448 A CN 201310198448A CN 103259991 A CN103259991 A CN 103259991A
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Abstract
The invention relates to a dual output tuner for receiving satellite television signals. The dual output tuner for receiving the satellite television signals comprises two high frequency adapters which are installed in the same circuit box, adapter seats of the high frequency adapters, the circuit box, a guided wave cylinder and a wave collector. A single circuit board comprises a high frequency amplification control unit, a high frequency amplification unit with two channels of horizontal signals and two channels of perpendicular signals, second distribution units, a signal amplification unit, a signal coupling unit, a BPF band-pass filtering unit, an integrated signal processing unit, a power and control unit and a quartz crystal oscillating unit. The dual output tuner for receiving the satellite television signals has the advantages that local oscillation, frequency mixing and medium frequency amplification are all integrated inside a signal processing and control chip, a local oscillator resonance cavity required by a prior medium DR is eliminated from the circuit box, crystal oscillation is slightly influenced by temperature in a common environment, so that high stability is maintained, the quality of output signals is guaranteed, and manufacturing difficulty is further reduced. The size of the circuit box is reduced, so that body weight is reduced, power consumption and used materials are reduced, a production procedure is simplified, and production efficiency is improved.
Description
Technical field
The present invention relates to the high-frequency signal low-noise amplifying frequency demultiplier, particularly a kind of for the dual output tuner that receives satellite TV signal.
Background technology
With reference to Fig. 1, at present, Chang Gui dual output tuner generally includes body 33, low-frequency channel plate, 9.75GHz low frequency radome 35,10.6GHz radioshielding cover 34,9.75GHz low frequency galvanized iron sheet cover plate 37,10.6GHz high frequency galvanized iron sheet cover plate 36, waveguide pipe 38 and wave collecting device 39 and 2 pcb boards and two local oscillator debugging screws (laying respectively on two radomes).
Dual output KU wave band tuner adopts low frequency, 2 circuit boards of high frequency, and SMT processing is numerous and diverse.With reference to circuit block diagram and the schematic diagram of Fig. 2 and Fig. 3, the circuit of every circuit board constitutes also comparatively complicated, and the use element is many, and needs adjust 2 resonant cavitys and 2 debugging screws respectively, produces assembling and processes numerous and diverse.
The effect of dual output tuner is to receive satellite TV signal, and the line frequency road selection of going forward side by side, signal amplification, signal two distribution and frequency reducing, amplification are handled, and finally export two road stable intermediate-freuqncy signals.One of them important step is that the output signal frequency of tuner and reference-input signal are consistent, and the oscillating circuit that this link all is made up of control chip and triode or N channel field-effect pipe, DR medium oscillator is usually finished.In use, need earlier by being rotatably provided in the set screw on the tuner, contact in the adjustment oscillating circuit and the distance between the DR medium oscillator, thereby change the output local frequency of oscillating circuit, be consistent until output signal frequency and input reference signal, fix in set screw place coating screw fastening glue at last, thereby output signal is locked.Because the local frequency that produces of tuner oscillating circuit is very high, generally all more than 9GHz, thereby make that in adjustment process the minor variations between contact and the DR medium oscillator all will cause local frequency to change significantly.The difficulty of regulative mode adjustment local frequency of regulating frequency of oscillation by the rotation set screw is very big, and the user needs repeated multiple times carefully to regulate just to finish, thereby has increased the cost of manufacture of tuner.Variation of ambient temperature also can make the generation of tuner each several part expand with heat and contract with cold, very easily change the distance between contact and the DR medium oscillator, the local frequency that causes regulating is drifted about, and output signal can't be consistent with reference-input signal, finally influences quality of output signals.In addition, owing to adopt DR medium oscillator and pcb board Copper Foil to form the tuner oscillating circuit, need leave suitable cavity at dual output tuner body and could produce oscillator signal.Therefore, the volume of body and consumptive material are bigger.
Summary of the invention
Purpose of the present invention is exactly the above-mentioned defective that will overcome prior art, provide a kind of volume little, in light weight, can reduce consumptive material and manufacture difficulty in order to avoid transfer the oscillating circuit frequency, simplify production procedure, the dual output tuner that is used for receiving satellite TV signal of enhancing productivity.
For reaching above-mentioned purpose, dual output tuner for the reception satellite TV signal provided by the invention comprises PORT1 high frequency adapter, PORT2 high frequency adapter and switching headstock, circuit box guided wave tube and wave collecting device, the upper end of described guided wave tube is connected with described wave collecting device, the lower end of the lateral wall of described circuit box and described guided wave tube is connected to one, described switching headstock is connected with described circuit box, in the described circuit box circuit board is installed, described circuit board comprises that high frequency amplifies control unit, horizontal signal high frequency amplifying unit, vertical signal high frequency amplifying unit, horizontal signal two allocation units, vertical signal two allocation units, PORT1 vertical signal amplifying unit, PORT1 horizontal signal amplifying unit, PORT2 vertical signal amplifying unit, PORT2 horizontal signal amplifying unit, PORT1BPF bandpass filtering unit, PORT2BPF bandpass filtering unit, PORT1 power supply and control unit and PORT2 power supply and control unit, described circuit board also comprises PORT1 signal coupling unit, PORT2 signal coupling unit, the quartz crystal oscillating unit, the integrated signal processing unit of PORT1, the integrated signal processing unit of PORT2, wherein:
Described horizontal signal high frequency amplifying unit, horizontal signal two allocation units, PORT2 horizontal signal amplifying unit, PORT2 signal coupling unit, PORT2BPF bandpass filtering unit, the integrated signal processing unit of PORT2 link to each other successively with described PORT1 high frequency adapter;
Described vertical signal high frequency amplifying unit, vertical signal two allocation units, PORT1 vertical signal amplifying unit, PORT1 signal coupling unit, PORT1BPF bandpass filtering unit, the integrated signal processing unit of PORT1 link to each other successively with described PORT1 high frequency adapter;
Described high frequency amplifies control unit and is connected with the vertical signal amplifying unit with described horizontal signal amplifying unit respectively;
Described horizontal signal two allocation units link to each other with described PORT1 signal coupling unit through described PORT1 horizontal signal amplifying unit, and described vertical signal two allocation units link to each other with described PORT2 signal coupling unit through described PORT2 vertical signal amplifying unit;
The integrated signal processing unit of described PORT1 links to each other with described quartz crystal oscillating unit respectively with the integrated signal processing unit of PORT2;
Described PORT2 power supply and control unit link to each other respectively with PORT2 high frequency adapter with described high frequency amplification control unit, PORT2 horizontal signal amplifying unit, PORT2 horizontal signal amplifying unit, the integrated signal processing unit of PORT2;
Described PORT1 power supply and control unit link to each other respectively with PORT1 high frequency adapter with described high frequency amplification control unit, PORT1 vertical signal amplifying unit, PORT1 horizontal signal amplifying unit, the integrated signal processing unit of PORT1;
The RF signal comprises horizontal RF signal and vertical RF signal, described horizontal RF signal outputs to described PORT1 horizontal signal amplifying unit and PORT2 horizontal signal amplifying unit through horizontal signal high frequency amplifying unit, horizontal signal two allocation units, and described vertical RF signal outputs to described PORT1 vertical signal amplifying unit and PORT2 vertical signal amplifying unit through described vertical signal high frequency amplifying unit, vertical signal two allocation units;
Described PORT1 signal coupling unit receives the signal of described PORT1 horizontal signal amplifying unit output and the signal of PORT1 vertical signal amplifying unit output is connected to described PORT1BPF band-pass filter unit filtering clutter, after the integrated signal processing unit processes of described PORT1, output medium-frequency IF signal is to described PORT1 high frequency adapter again;
Described PORT2 signal coupling unit receives the signal of described PORT2 horizontal signal amplifying unit output and the signal of PORT2 vertical signal amplifying unit output is connected to described PORT2BPF band-pass filter unit filtering clutter, after the integrated signal processing unit processes of described PORT2, output medium-frequency IF signal is to PORT2 high frequency adapter again.
The present invention be used for to receive the dual output tuner of satellite TV signal, and the model that the integrated signal processing unit of wherein said PORT1 and the integrated signal processing unit of PORT2 adopt quartz crystal oscillator circuit, local oscillator PLL frequency multiplication phase-locked loop circuit, filter circuit, mixting circuit and low noise intermediate frequency amplifier circuit respectively integrated is that the integrated chip of TFF1015 or TFF1017 constitutes.
The present invention be used for to receive the dual output tuner of satellite TV signal, and the model that wherein said PORT1 power supply and control unit and PORT2 power supply and control unit adopt power supply stabilization circuit, 13V/18V polarizing voltage commutation circuit and the high/low frequency commutation circuit of 0K/22K respectively integrated is that the integrated chip of ZXNB4200 or ZXNB4202 or LS7005 constitutes.
The present invention is used for receiving the dual output tuner of satellite TV signal, and wherein said PORT1 high frequency adapter, PORT2 high frequency adapter and switching headstock are installed on the same circuit box, and single circuit board is installed in the described circuit box.
The advantage that the present invention be used for to receive the tuner of satellite TV signal is: because the local oscillator of circuit board, mixing, intermediate frequency are amplified and all be integrated into signal and handle and control chip inside, circuit box has saved the necessary local oscillator resonant cavity of original medium DR, crystal oscillator temperature influence in general environment is minimum, thereby can keep high stability, thereby guaranteed the quality of output signal, further reduced manufacture difficulty.Because reducing of circuit box volume alleviated this body weight, reduced power consumption and consumptive material and used, simplified production procedure, improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of dual output tuner in the prior art;
Fig. 2 is the circuit block diagram of dual output tuner in the prior art;
Fig. 3 is the circuit theory diagrams of dual output tuner in the prior art;
Fig. 4 is the structural representation of dual output tuner of the present invention;
Fig. 5 is that the master of dual output tuner of the present invention looks cutaway view;
Fig. 6 is the circuit block diagram of dual output tuner of the present invention;
Fig. 7 is the circuit theory diagrams of dual output tuner of the present invention.
Embodiment
Describe a kind of embodiment for the dual output tuner that receives satellite TV signal of the present invention in detail below in conjunction with accompanying drawing.
With reference to Fig. 4 and Fig. 5, the dual output tuner for the reception satellite TV signal provided by the invention comprises PORT1 high frequency adapter 1 and PORT2 high frequency adapter 2 its switching headstocks 3, circuit box 4, guided wave tube 5 and wave collecting devices 6.
The upper end of guided wave tube 5 is connected with wave collecting device 6, and circuit box 4 is connected to one with the lower end of the lateral wall of guided wave tube 5, and switching headstock 3 is connected with circuit box 4.PORT1 high frequency adapter 1, PORT2 high frequency adapter 2 and switching headstock 3 are installed on the same circuit box 4, and single circuit board 7 is installed in the circuit box 4.
With reference to Fig. 6, at the embodiment of the present invention for the tuner that receives satellite TV signal, circuit board 7 comprises that high frequency amplifies control unit 11, horizontal signal high frequency amplifying unit 13, vertical signal high frequency amplifying unit 12, horizontal signal two allocation units 15, vertical signal two allocation units 14, PORT1 horizontal signal amplifying unit 17, PORT1 vertical signal amplifying unit 16, PORT2 horizontal signal amplifying unit 19, PORT2 vertical signal amplifying unit 18, PORT1 signal coupling unit 20, PORT2 signal coupling unit 21, PORT1BPF bandpass filtering unit 22, PORT2BPF bandpass filtering unit 23, the integrated signal processing unit 24 of PORT1, the integrated signal processing unit 25 of PORT2, PORT1 power supply and control unit 26, PORT2 power supply and control unit 27 and quartz crystal oscillating unit 28.
Wherein, horizontal signal high frequency amplifying unit 13, horizontal signal two allocation units 15, PORT2 horizontal signal amplifying unit 19, PORT2 signal coupling unit 21, PORT2BPF bandpass filtering unit 23, the integrated signal processing unit 25 of PORT2 link to each other successively with PORT1 high frequency adapter 2.
Vertical signal high frequency amplifying unit 12, vertical signal two allocation units 14, PORT1 vertical signal amplifying unit 16, PORT1 signal coupling unit 20, PORT1BPF bandpass filtering unit 22, the integrated signal processing unit 24 of PORT1 link to each other successively with PORT1 high frequency adapter 1.
High frequency amplifies control unit 11 and is connected with vertical signal amplifying unit 12 with horizontal signal amplifying unit 13 respectively.
Horizontal signal two allocation units 15 link to each other with PORT1 signal coupling unit 20 through PORT1 horizontal signal amplifying unit 17, and vertical signal two allocation units 14 link to each other with PORT2 signal coupling unit 21 through PORT2 vertical signal amplifying unit 18.
The integrated signal processing unit 24 of PORT1 links to each other with quartz crystal oscillating unit 28 respectively with the integrated signal processing unit 25 of PORT2.
PORT2 power supply and control unit 27 link to each other respectively with PORT2 high frequency adapter 2 with high frequency amplification control unit 11, PORT2 horizontal signal amplifying unit 18, PORT2 horizontal signal amplifying unit 19, the integrated signal processing unit 25 of PORT2.
PORT1 power supply and control unit 26 link to each other respectively with PORT1 high frequency adapter 1 with high frequency amplification control unit 11, PORT1 vertical signal amplifying unit 16, PORT1 horizontal signal amplifying unit 17, the integrated signal processing unit 24 of PORT1.
The present invention be used for to receive the dual output tuner of satellite TV signal, and wherein the integrated signal processing unit 24 of PORT1 and the integrated signal processing unit 25 of the PORT2 model that adopts quartz crystal oscillator circuit, local oscillator PLL frequency multiplication phase-locked loop circuit, filter circuit, mixting circuit and low noise intermediate frequency amplifier circuit respectively integrated is that the integrated chip of TFF1015 or TFF1017 constitutes.The model that PORT1 power supply and control unit 26 and PORT2 power supply and control unit 27 adopt power supply stabilization circuit, 13V/18V polarizing voltage commutation circuit and the high/low frequency commutation circuit of 0K/22K respectively integrated is that the integrated chip of ZXNB4200 or ZXNB4202 or LS7005 constitutes.
In conjunction with reference to Fig. 7, concrete circuit connects: horizontal signal high frequency amplifying unit 13 is connected to high frequency by resistance and amplifies control unit 11, vertical signal high frequency amplifying unit 12 is connected to high frequency by resistance and amplifies control unit 11, high frequency amplifies control unit 11 and is connected respectively to horizontal signal amplifying unit 13 by Copper Foil, vertical signal amplifying unit 12 and PORT1 power supply and control unit, PORT2 power supply and control unit, horizontal signal two allocation units 15 are connected horizontal signal high frequency amplifying unit 13 and PORT1 horizontal signal amplifying unit 17, between the PORT2 horizontal signal amplifying unit 19, vertical signal two allocation units 14 are connected vertical signal high frequency amplifying unit 12 and PORT1 vertical signal amplifying unit 16, between the PORT2 horizontal signal amplifying unit 18, PORT1 horizontal signal amplifying unit 17 is connected between horizontal signal two allocation units 15 and the PORT1 signal coupling unit 20, and be connected with the integrated signal processing unit 24 of PORT1 by Copper Foil, PORT1 vertical signal amplifying unit 16 is connected between vertical signal two allocation units 14 and the PORT1 signal coupling unit 20, and be connected with the integrated signal processing unit 24 of PORT1 by Copper Foil, PORT2 horizontal signal amplifying unit 19 is connected between horizontal signal two allocation units 15 and the PORT2 signal coupling unit 21, and be connected with the integrated signal processing unit 25 of PORT2 by Copper Foil, PORT2 vertical signal amplifying unit 18 is connected between vertical signal two allocation units 14 and the PORT2 signal coupling unit 21, and be connected with the integrated signal processing unit 25 of PORT2 by Copper Foil, PORT1 signal coupling unit 20 is connected PORT1 horizontal signal amplifying unit 17, PORT1 vertical signal amplifying unit 16 and PORT1BPF bandpass filtering unit 22, PORT2 signal coupling unit 21 is connected PORT2 horizontal signal amplifying unit 19, PORT2 vertical signal amplifying unit 18 and PORT2BPF bandpass filtering unit 23, PORT1BPF bandpass filtering unit 22 is connected between PORT1 signal coupling unit 20 and the integrated signal processing unit of PORT1, PORT2BPF bandpass filtering unit 23 is connected between PORT2 signal coupling unit 23 and the integrated signal processing unit of PORT2, the integrated signal processing unit 24 of PORT1 is connected between PORT1BPF bandpass filtering unit 22 and the PORT1 high frequency adapter 1, simultaneously by Copper Foil respectively with PORT1 vertical signal amplifying unit 16, PORT1 horizontal signal amplifying unit 17, PORT1 power supply and control unit 26, quartz crystal oscillating unit 28 connects, the integrated signal processing unit 25 of PORT2 is connected between PORT2BPF bandpass filtering unit 23 and the PORT2 high frequency adapter 2, simultaneously by Copper Foil respectively with PORT2 vertical signal amplifying unit 18, PORT2 horizontal signal amplifying unit 19, PORT2 power supply and control unit 27, quartz crystal oscillating unit 28 connects, the quartz crystal oscillating unit is connected between the integrated signal processing unit 24 of PORT1 and the integrated signal processing unit 25 of PORT2 by Copper Foil, and PORT1 power supply and control unit 26 amplify control unit 11 with high frequency respectively by Copper Foil, the integrated signal processing unit 24 of PORT1, PORT1 tuner adapter 1 connects.PORT2 power supply and control unit 27 are connected with high frequency amplification control unit 11, the integrated signal processing unit 25 of PORT2, PORT2 tuner adapter 2 respectively by Copper Foil.
At the embodiment of the present invention for the dual output tuner that receives satellite TV signal, the course of work of tuner is: the RF signal comprises horizontal RF signal and vertical RF signal.Horizontal RF signal outputs to PORT1 horizontal signal amplifying unit 17 and PORT2 horizontal signal amplifying unit 19 through horizontal signal high frequency amplifying unit 13, horizontal signal two allocation units 15, and vertical RF signal outputs to PORT1 vertical signal amplifying unit 16 and PORT2 vertical signal amplifying unit 18 through vertical signal high frequency amplifying unit 12, vertical signal two allocation units 14.
PORT1 signal coupling unit 20 receives the signal of PORT1 horizontal signal amplifying unit 17 outputs and the signal of PORT1 vertical signal amplifying unit 16 outputs is connected to PORT1BPF band-pass filter unit 22 filtering clutters, after the integrated signal processing unit 24 of PORT1 was handled, output medium-frequency IF signal was to PORT1 high frequency adapter 1 again.
PORT2 signal coupling unit 21 receives the signal of PORT2 horizontal signal amplifying unit 19 outputs and the signal of PORT2 vertical signal amplifying unit 18 outputs is connected to PORT2BPF band-pass filter unit 23 filtering clutters, after the integrated signal processing unit 25 of PORT2 was handled, output medium-frequency IF signal was to PORT2 high frequency adapter 2 again.
Embodiment recited above is described preferred implementation of the present invention, is not that the spirit and scope of the present invention are limited.Under the prerequisite that does not break away from design concept of the present invention; various modification and improvement that this area ordinary person makes technical scheme of the present invention; all should drop into protection scope of the present invention, the technology contents that the present invention asks for protection all is documented in claims.
Claims (4)
1. dual output tuner that be used for to receive satellite TV signal, comprise PORT1 high frequency adapter (1), PORT2 high frequency adapter (2) and switching headstock (3), circuit box (4) guided wave tube (5) and wave collecting device (6), the upper end of described guided wave tube (5) is connected with described wave collecting device (6), described circuit box (4) is connected to one with the lower end of the lateral wall of described guided wave tube (5), described switching headstock (3) is connected with described circuit box (4), circuit board (7) is installed in the described circuit box (4), described circuit board (7) comprises that high frequency amplifies control unit (11), horizontal signal high frequency amplifying unit (13), vertical signal high frequency amplifying unit (12), horizontal signal two allocation units (15), vertical signal two allocation units (14), PORT1 vertical signal amplifying unit (16), PORT1 horizontal signal amplifying unit (17), PORT2 vertical signal amplifying unit (18), PORT2 horizontal signal amplifying unit (19), PORT1BPF bandpass filtering unit (22), PORT2BPF bandpass filtering unit (23), PORT1 power supply and control unit (26) and PORT2 power supply and control unit (27), it is characterized in that: described circuit board (7) also comprises PORT1 signal coupling unit (20), PORT2 signal coupling unit (21), quartz crystal oscillating unit (28), the integrated signal processing unit of PORT1 (24), the integrated signal processing unit of PORT2 (25), wherein:
Described horizontal signal high frequency amplifying unit (13), horizontal signal two allocation units (15), PORT2 horizontal signal amplifying unit (19), PORT2 signal coupling unit (21), PORT2BPF bandpass filtering unit (23), the integrated signal processing unit of PORT2 (25) link to each other successively with described PORT1 high frequency adapter (2);
Described vertical signal high frequency amplifying unit (12), vertical signal two allocation units (14), PORT1 vertical signal amplifying unit (16), PORT1 signal coupling unit (20), PORT1BPF bandpass filtering unit (22), the integrated signal processing unit of PORT1 (24) link to each other successively with described PORT1 high frequency adapter (1);
Described high frequency amplifies control unit (11) and is connected with vertical signal amplifying unit (12) with described horizontal signal amplifying unit (13) respectively;
Described horizontal signal two allocation units (15) link to each other with described PORT1 signal coupling unit (20) through described PORT1 horizontal signal amplifying unit (17), and described vertical signal two allocation units (14) link to each other with described PORT2 signal coupling unit (21) through described PORT2 vertical signal amplifying unit (18);
The integrated signal processing unit of described PORT1 (24) links to each other with described quartz crystal oscillating unit (28) respectively with the integrated signal processing unit of PORT2 (25);
Described PORT2 power supply and control unit (27) link to each other respectively with PORT2 high frequency adapter (2) with described high frequency amplification control unit (11), PORT2 horizontal signal amplifying unit (18), PORT2 horizontal signal amplifying unit (19), the integrated signal processing unit of PORT2 (25);
Described PORT1 power supply and control unit (26) link to each other respectively with PORT1 high frequency adapter (1) with described high frequency amplification control unit (11), PORT1 vertical signal amplifying unit (16), PORT1 horizontal signal amplifying unit (17), the integrated signal processing unit of PORT1 (24);
The RF signal comprises horizontal RF signal and vertical RF signal, described horizontal RF signal outputs to described PORT1 horizontal signal amplifying unit (17) and PORT2 horizontal signal amplifying unit (19) through horizontal signal high frequency amplifying unit (13), horizontal signal two allocation units (15), and described vertical RF signal outputs to described PORT1 vertical signal amplifying unit (16) and PORT2 vertical signal amplifying unit (18) through described vertical signal high frequency amplifying unit (12), vertical signal two allocation units (14);
Described PORT1 signal coupling unit (20) receives the signal of described PORT1 horizontal signal amplifying unit (17) output and the signal of PORT1 vertical signal amplifying unit (16) output is connected to described PORT1BPF band-pass filter unit (22) filtering clutter, after the integrated signal processing unit of described PORT1 (24) was handled, output medium-frequency IF signal was to described PORT1 high frequency adapter (1) again;
Described PORT2 signal coupling unit (21) receives the signal of described PORT2 horizontal signal amplifying unit (19) output and the signal of PORT2 vertical signal amplifying unit (18) output is connected to described PORT2BPF band-pass filter unit (23) filtering clutter, after the integrated signal processing unit of described PORT2 (25) was handled, output medium-frequency IF signal was to PORT2 high frequency adapter (2) again.
2. according to claim 1 for the tuner that receives satellite TV signal, it is characterized in that: the model that the integrated signal processing unit of wherein said PORT1 (24) and the integrated signal processing unit of PORT2 (25) adopt quartz crystal oscillator circuit, local oscillator PLL frequency multiplication phase-locked loop circuit, filter circuit, mixting circuit and low noise intermediate frequency amplifier circuit respectively integrated is the integrated chip formation of TFF1015 or TFF1017.
3. according to claim 1 and 2 for the dual output tuner that receives satellite TV signal, it is characterized in that: the model that wherein said PORT1 power supply and control unit (26) and PORT2 power supply and control unit (27) adopt power supply stabilization circuit, 13V/18V polarizing voltage commutation circuit and the high/low frequency commutation circuit of 0K/22K respectively integrated is the integrated chip formation of ZXNB4200 or ZXNB4202 or LS7005.
4. according to claim 1 for the tuner that receives satellite TV signal, it is characterized in that: wherein said PORT1 high frequency adapter (1), PORT2 high frequency adapter (2) and switching headstock (3) are installed on the same circuit box (4), and single circuit board (7) is installed in the described circuit box (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198448.4A CN103259991B (en) | 2013-05-23 | 2013-05-23 | For receiving the dual output tuner of satellite TV signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310198448.4A CN103259991B (en) | 2013-05-23 | 2013-05-23 | For receiving the dual output tuner of satellite TV signal |
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| Publication Number | Publication Date |
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| CN103259991A true CN103259991A (en) | 2013-08-21 |
| CN103259991B CN103259991B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310198448.4A Expired - Fee Related CN103259991B (en) | 2013-05-23 | 2013-05-23 | For receiving the dual output tuner of satellite TV signal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105657300A (en) * | 2016-03-18 | 2016-06-08 | 珠海迈科智能科技股份有限公司 | Satellite tuner circuit and satellite tuner |
| CN111586374A (en) * | 2020-05-20 | 2020-08-25 | 江苏银河数字技术有限公司 | Satellite receiver system and control method thereof |
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| US20030112370A1 (en) * | 2001-12-18 | 2003-06-19 | Chris Long | Adaptive expanded information capacity for communications systems |
| CN201114052Y (en) * | 2007-06-06 | 2008-09-10 | 安徽四创电子股份有限公司 | Ku double local oscillation multi-output system |
| CN202679500U (en) * | 2012-06-15 | 2013-01-16 | 张金国 | Tuner for receiving satellite television signals |
| CN202818466U (en) * | 2012-08-24 | 2013-03-20 | 张金国 | Single output high frequency head for receiving satellite TV signal |
| CN203368609U (en) * | 2013-05-23 | 2013-12-25 | 江苏金国电子有限公司 | Double-output high frequency head capable of receiving satellite television signals |
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2013
- 2013-05-23 CN CN201310198448.4A patent/CN103259991B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030112370A1 (en) * | 2001-12-18 | 2003-06-19 | Chris Long | Adaptive expanded information capacity for communications systems |
| CN201114052Y (en) * | 2007-06-06 | 2008-09-10 | 安徽四创电子股份有限公司 | Ku double local oscillation multi-output system |
| CN202679500U (en) * | 2012-06-15 | 2013-01-16 | 张金国 | Tuner for receiving satellite television signals |
| CN202818466U (en) * | 2012-08-24 | 2013-03-20 | 张金国 | Single output high frequency head for receiving satellite TV signal |
| CN203368609U (en) * | 2013-05-23 | 2013-12-25 | 江苏金国电子有限公司 | Double-output high frequency head capable of receiving satellite television signals |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105657300A (en) * | 2016-03-18 | 2016-06-08 | 珠海迈科智能科技股份有限公司 | Satellite tuner circuit and satellite tuner |
| CN111586374A (en) * | 2020-05-20 | 2020-08-25 | 江苏银河数字技术有限公司 | Satellite receiver system and control method thereof |
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|---|---|
| CN103259991B (en) | 2016-03-30 |
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