CN203180959U - Signal receiving apparatus and digital television terminal - Google Patents
Signal receiving apparatus and digital television terminal Download PDFInfo
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- CN203180959U CN203180959U CN 201320111701 CN201320111701U CN203180959U CN 203180959 U CN203180959 U CN 203180959U CN 201320111701 CN201320111701 CN 201320111701 CN 201320111701 U CN201320111701 U CN 201320111701U CN 203180959 U CN203180959 U CN 203180959U
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Abstract
The embodiment of the utility model discloses a signal receiving apparatus and a digital television terminal. The signal receiving apparatus comprises a first signal receiving terminal, a diplexer, a first splitter, at least two first kind of tuner and at least one second kind of tuner; the first signal receiving terminal is in connection with a signal input terminal of the diplexer; a first output terminal of the diplexer is in connection with an input terminal of the first splitter; the second output terminal of the diplexer is in connection with the at least one second kind of tuner; an output terminal of the first splitter is respectively in connection with the at least first two first kind of tuner. According to the utility model, programs of different frequency ranges can be recorded meanwhile through a plurality of tuners.
Description
Technical field
The utility model relates to electronic technology field, relates in particular to a kind of signal receiving device and digital TV terminal.
Background technology
Multi-tuner front end scheme based on ground broadcast signal mixes input with satellite-signal in the prior art, mostly is the dual tuner scheme.Be specially, when digital TV terminal receives terrestrial broadcasting and satellite mixed signal, duplexer by digital TV terminal inside separates the ground broadcast signal in the mixed signal and satellite-signal, signal after will separating is respectively again sent into terrestrial broadcasting tuner and satellite tuner, through the demodulation of demodulator and the decoding of rear end decoder, realize a record one function of broadcasting, record the program of different frequency range simultaneously but this scheme can't realize a plurality of tuners.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of signal receiving device and digital TV terminal are provided, and can realize that a plurality of tuners record the program of different frequency range simultaneously.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of signal receiving device, it is characterized in that, comprising: first signal receiving end, duplexer, first power splitter, at least two first kind tuners and at least one second class tuner;
Described first signal receiving end is connected with the signal input part of duplexer, and first output of described duplexer is connected with the input of first power splitter, and second output of described duplexer links to each other with at least one second class tuner;
The output of described first power splitter is connected with at least two first kind tuners respectively.
Wherein, also comprise: second power splitter;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described second power splitter;
Second output of described duplexer links to each other with the input of described second power splitter;
The output of described second power splitter is connected with two second class tuners respectively.
Wherein, also comprise: signal selecting switch;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described signal selecting switch;
Second output of described duplexer links to each other with the input of described signal selecting switch;
The output of described signal selecting switch is connected with two second class tuners respectively.
Wherein, also comprise: the secondary signal receiving terminal;
Described secondary signal receiving terminal is connected with another input of described signal selecting switch.
Correspondingly, the utility model embodiment also provides a kind of digital TV terminal, comprise: signal receiving device, described signal receiving device comprises: first signal receiving end, duplexer, first power splitter, at least two first kind tuners and at least one second class tuner;
Described first signal receiving end is connected with the signal input part of duplexer, and first output of described duplexer is connected with the input of first power splitter, and second output of described duplexer links to each other with at least one second class tuner;
The output of described first power splitter is connected with at least two first kind tuners respectively.
Wherein, also comprise: second power splitter;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described second power splitter;
Second output of described duplexer links to each other with the input of described second power splitter;
The output of described second power splitter is connected with two second class tuners respectively.
Wherein, also comprise: signal selecting switch;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described signal selecting switch;
Second output of described duplexer links to each other with the input of described signal selecting switch;
The output of described signal selecting switch is connected with two second class tuners respectively.
Wherein, also comprise: the secondary signal receiving terminal;
Described secondary signal receiving terminal is connected with another input of described signal selecting switch.
Implement the utility model embodiment, have following beneficial effect:
Digital TV terminal of the present utility model not only can be realized the frequency division of ground broadcast signal and satellite-signal by signal receiving device, can also realize that a plurality of tuners record the function of different programs simultaneously, has effectively satisfied user's demand.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of signal receiving device of providing of the utility model embodiment;
Fig. 2 is the structural representation of the another kind of signal receiving device that provides of the utility model embodiment;
Fig. 3 is the structural representation of another signal receiving device of providing of the utility model embodiment;
Fig. 4 is the structural representation that signal selecting switch is in another kind of state among Fig. 3.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, it is the structural representation of a kind of signal receiving device of providing of the utility model embodiment, described signal receiving device comprises: first signal receiving end 1, duplexer (Diplexer, duplexer) 3, at least two first kind tuners of 2, first power splitter (Splitter, power splitter) and at least one second class tuner;
Described first signal receiving end 1 is connected with the signal input part of duplexer 2, and first output of described duplexer 2 is connected with the input of first power splitter 3, and second output of described duplexer 2 links to each other with at least one second class tuner; The output of described first power splitter 3 is connected with at least two first kind tuners respectively.Wherein, in the present embodiment, be first kind tuner with tuner 41 and tuner 42, tuner 51 is that the second class tuner describes.
Fig. 1 is single satellite list LNB (Low Noise Block, tuner) applicable cases, first output of described duplexer 2 is set to the ground broadcast signal output, second output of described duplexer 2 is set to the satellite-signal output, first kind tuner then is the terrestrial broadcasting tuner, and the second class tuner then is satellite tuner.When first signal receiving end 1 receives terrestrial broadcasting and satellite mixed signal, utilize inner low pass with high pass filter the mixed signal frequency division to be become ground broadcast signal and satellite-signal by duplexer 2, and then ground broadcast signal is input to first power splitter 3, satellite-signal is input to tuner 51, described first power splitter 3 can be the one drag two power splitter, after by described first power splitter 3 the ground broadcast signal merit being divided into two-way, send into tuner 41 and tuner 42 respectively, carry out live simultaneously or record work to realize three tuners.When described first signal receiving end 1 received only satellite-signal, then 2 of described duplexers were exported the satellite-signal output; Same, when described first signal receiving end 1 received only ground broadcast signal, then 2 of described duplexers were exported the terrestrial broadcasting signal output part.
When first output of described duplexer 2 is set to satellite-signal, when second output of described duplexer 2 is set to ground broadcast signal, first kind tuner then is satellite tuner, the second class tuner then is the terrestrial broadcasting tuner, ground broadcast signal will directly be sent into tuner 51, and satellite-signal will be sent into tuner 41 and tuner 42 respectively by first power splitter 3.
The utility model not only can be realized the frequency division of ground broadcast signal and satellite-signal by signal receiving device, can also realize that a plurality of tuners record the function of different programs simultaneously, has effectively satisfied user's demand.
See also Fig. 2, be the structural representation of the another kind of signal receiving device that provides of the utility model embodiment, described signal receiving device comprises: first signal receiving end 1, duplexer 2, first power splitter 3, at least two first kind tuners and at least one second class tuner;
Described first signal receiving end 1 is connected with the signal input part of duplexer 2, and first output of described duplexer 2 is connected with the input of first power splitter 3, and second output of described duplexer 2 links to each other with at least one second class tuner; The output of described first power splitter 3 is connected with at least two first kind tuners respectively.
Described signal receiving device also comprises: second power splitter (Splitter, power splitter) 6; Second output of described duplexer 2, second output that refers to described duplexer 2 that links to each other with at least one second class tuner is to link to each other with two second class tuners by described second power splitter 6; Second output of described duplexer 2 links to each other with the input of described second power splitter 6; The output of described second power splitter 6 is connected with two second class tuners respectively.Wherein, in the present embodiment, be first kind tuner with tuner 41 and tuner 42, tuner 51 and tuner 52 are that the second class tuner describes.
Concrete, Fig. 1 is the applicable cases of single satellite list LNB, first output of described duplexer 2 is set to the ground broadcast signal output, second output of described duplexer 2 is set to the satellite-signal output, first kind tuner then is the terrestrial broadcasting tuner, and the second class tuner then is satellite tuner.When first signal receiving end 1 receives terrestrial broadcasting and satellite mixed signal, utilize inner low pass with high pass filter the mixed signal frequency division to be become ground broadcast signal and satellite-signal by duplexer 2, and then ground broadcast signal is input to first power splitter 3, satellite-signal is input to second power splitter 6, described first power splitter 3 and second power splitter 6 all can be the one drag two power splitter, after by described first power splitter 3 the ground broadcast signal merit being divided into two-way, send into tuner 41 and tuner 42 respectively, after by described second power splitter 6 the satellite-signal merit being divided into two-way again, send into tuner 51 and tuner 52 respectively, carry out live simultaneously or record work to realize four tuners.When described first signal receiving end 1 received only satellite-signal, then 2 of described duplexers were exported the satellite-signal output; Same, when described first signal receiving end 1 received only ground broadcast signal, then 2 of described duplexers were exported the terrestrial broadcasting signal output part.
When first output of described duplexer 2 is set to satellite-signal, when second output of described duplexer 2 is set to ground broadcast signal, first kind tuner then is satellite tuner, the second class tuner then is the terrestrial broadcasting tuner, ground broadcast signal will be sent into tuner 51 and tuner 52 respectively by second power splitter 6, and satellite-signal will be sent into tuner 41 and tuner 42 respectively by first power splitter 3.
The utility model not only can be realized the frequency division of ground broadcast signal and satellite-signal by signal receiving device, can also realize that a plurality of tuners record the function of different programs simultaneously, has effectively satisfied user's demand.
See also Fig. 3, be the structural representation of another signal receiving device of providing of the utility model embodiment, described signal receiving device comprises: first signal receiving end 1, duplexer 2, first power splitter 3, at least two first kind tuners and at least one second class tuner;
Described first signal receiving end 1 is connected with the signal input part of duplexer 2, and first output of described duplexer 2 is connected with the input of first power splitter 3, and second output of described duplexer 2 links to each other with at least one second class tuner; The output of described first power splitter 3 is connected with at least two first kind tuners respectively.
Described signal receiving device also comprises: signal selecting switch 7; Second output of described duplexer 2, second output that refers to described duplexer 2 that links to each other with at least one second class tuner is to link to each other with two second class tuners by described signal selecting switch 7; Second output of described duplexer 2 links to each other with the input of described signal selecting switch 7; The output of described signal selecting switch 7 is connected with two second class tuners respectively.
Described signal receiving device also comprises: secondary signal receiving terminal 8; Described secondary signal receiving terminal 8 is connected with another input of described signal selecting switch 7.Wherein, in the present embodiment, be first kind tuner with tuner 41 and tuner 42, tuner 51 and tuner 52 are that the second class tuner describes.
Concrete, Fig. 3 is the applicable cases of the two LNB of single satellite, first output of described duplexer 2 is set to the ground broadcast signal output, second output of described duplexer 2 is set to the satellite-signal output, first kind tuner then is the terrestrial broadcasting tuner, and the second class tuner then is satellite tuner.In Fig. 3, described signal selecting switch 7 with tuner 51 and tuner 52 all with the second output conducting of duplexer 2, and signal selecting switch 7 can also have the function of first power splitter 3, when first signal receiving end 1 receives terrestrial broadcasting and satellite mixed signal, utilize inner low pass with high pass filter the mixed signal frequency division to be become ground broadcast signal and satellite-signal by duplexer 2, and then ground broadcast signal is input to first power splitter 3, satellite-signal is input to signal selecting switch 7, described first power splitter 3 can be the one drag two power splitter, after by described first power splitter 3 the ground broadcast signal merit being divided into two-way, send into tuner 41 and tuner 42 respectively, after by described signal selecting switch 7 the satellite-signal merit being divided into two-way again, send into tuner 51 and tuner 52 respectively, carry out live simultaneously or record work to realize four tuners.When described first signal receiving end 1 received only satellite-signal, then 2 of described duplexers were exported the satellite-signal output; Same, when described first signal receiving end 1 received only ground broadcast signal, then 2 of described duplexers were exported the terrestrial broadcasting signal output part.
When first output of described duplexer 2 is set to satellite-signal, when second output of described duplexer 2 is set to ground broadcast signal, first kind tuner then is satellite tuner, the second class tuner then is the terrestrial broadcasting tuner, ground broadcast signal will be sent into tuner 51 and tuner 52 respectively by signal selecting switch 7, and satellite-signal will be sent into tuner 41 and tuner 42 respectively by first power splitter 3.
Seeing also Fig. 4, is the structural representation that signal selecting switch 7 is in another kind of state among Fig. 3, and namely signal selecting switch 7 is selected with the second output conducting of tuner 51 with duplexer 2, with tuner 52 and 8 conductings of secondary signal receiving terminal;
When first signal receiving end 1 receives terrestrial broadcasting and the first satellite mixed signal, when secondary signal receiving terminal 8 receives second satellite-signal, utilize inner low pass with high pass filter the mixed signal frequency division to be become ground broadcast signal and first satellite-signal by duplexer 2, and then ground broadcast signal is input to first power splitter 3, first satellite-signal is directly inputted to tuner 51 by signal selecting switch 7, second satellite-signal that is received by secondary signal receiving terminal 8 then is directly inputted to tuner 52 by signal selecting switch 7, wherein, described first power splitter 3 can be the one drag two power splitter, after by described first power splitter 3 the ground broadcast signal merit being divided into two-way, send into tuner 41 and tuner 42 respectively, carry out live simultaneously or record work to realize four tuners.When described first signal receiving end 1 received only satellite-signal, then 2 of described duplexers were exported the satellite-signal output; Same, when described first signal receiving end 1 received only ground broadcast signal, then 2 of described duplexers were exported the terrestrial broadcasting signal output part.
Wherein, the satellite-signal that tuner 51 and tuner 52 receive is from different signal source LNB, and a LNB sends first satellite-signal, and the 2nd LNB sends second satellite-signal.The LNB that the utility model embodiment provides can be the single local oscillator LNB of the single output of dual polarization, also can be the two local oscillator LNB of the single output of dual polarization, two local oscillator LNB can export four kinds of states for the single output of dual polarization: the high local oscillator output of horizontal polarization, the low local oscillator output of horizontal polarization, the high local oscillator output of perpendicular polarization, the low local oscillator output of perpendicular polarization; In the application of the two LNB of single satellite, tuner 51 and tuner 52 can be worked under horizontal polarization and perpendicular polarization simultaneously, although the required power supply electrical level of horizontal polarization and perpendicular polarization is inconsistent, but because tuner 51 meets different LNB with tuner 52, make the work of tuner 51 and tuner 52 not have conflict.
When first output of described duplexer 2 is set to satellite-signal, when second output of described duplexer 2 is set to ground broadcast signal, first kind tuner then is satellite tuner, 51 of the tuners that is connected with second output of duplexer 2 are the terrestrial broadcasting tuner, ground broadcast signal will directly be sent into tuner 51 by signal selecting switch 7, and satellite-signal will be sent into tuner 41 and tuner 42 respectively by first power splitter 3.Wherein, secondary signal receiving terminal 8 also can receive ground broadcast signal, and then 52 of the tuners that is communicated with secondary signal receiving terminal 8 are the terrestrial broadcasting tuner.
The utility model not only can be realized the frequency division of ground broadcast signal and satellite-signal by signal receiving device, can also realize that a plurality of tuners record the function of different programs simultaneously, has effectively satisfied user's demand.
The utility model also provides a kind of digital TV terminal, described digital TV terminal can comprise above-mentioned signal receiving device, described signal receiving device is built in the digital TV terminal, described digital TV terminal can comprise the signal receiving device of arbitrary embodiment correspondence among above-mentioned Fig. 1 or Fig. 2 or Fig. 3 and Fig. 4, the specific implementation of signal receiving device can repeat no more here referring to above-described embodiment.Wherein, first signal receiving end 1 in the described signal receiving device and secondary signal receiving terminal 8 all can be the F female in the digital TV terminal, and ground broadcast signal and/or satellite-signal enter the F female of digital TV terminal by single cable of cable TV.
Digital TV terminal of the present utility model not only can be realized the frequency division of ground broadcast signal and satellite-signal by signal receiving device, can also realize that a plurality of tuners record the function of different programs simultaneously, effectively satisfied user's demand, and since digital TV terminal built-in signal receiving device, external relatively this kind equipment can effectively be saved cost.
Above disclosed only is the utility model preferred embodiment, can not limit the interest field of the utility model certainly with this, and therefore the equivalent variations of doing according to the utility model claim still belongs to the scope that the utility model is contained.
Claims (8)
1. a signal receiving device is characterized in that, comprising: first signal receiving end, duplexer, first power splitter, at least two first kind tuners and at least one second class tuner;
Described first signal receiving end is connected with the signal input part of duplexer, and first output of described duplexer is connected with the input of first power splitter, and second output of described duplexer links to each other with at least one second class tuner;
The output of described first power splitter is connected with at least two first kind tuners respectively.
2. signal receiving device as claimed in claim 1 is characterized in that, also comprises: second power splitter;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described second power splitter;
Second output of described duplexer links to each other with the input of described second power splitter;
The output of described second power splitter is connected with two second class tuners respectively.
3. signal receiving device as claimed in claim 1 is characterized in that, also comprises: signal selecting switch;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described signal selecting switch;
Second output of described duplexer links to each other with the input of described signal selecting switch;
The output of described signal selecting switch is connected with two second class tuners respectively.
4. signal receiving device as claimed in claim 3 is characterized in that, also comprises: the secondary signal receiving terminal;
Described secondary signal receiving terminal is connected with another input of described signal selecting switch.
5. a digital TV terminal is characterized in that, comprising: signal receiving device, and described signal receiving device comprises: first signal receiving end, duplexer, first power splitter, at least two first kind tuners and at least one second class tuner;
Described first signal receiving end is connected with the signal input part of duplexer, and first output of described duplexer is connected with the input of first power splitter, and second output of described duplexer links to each other with at least one second class tuner;
The output of described first power splitter is connected with at least two first kind tuners respectively.
6. digital TV terminal as claimed in claim 5 is characterized in that, also comprises: second power splitter;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described second power splitter;
Second output of described duplexer links to each other with the input of described second power splitter;
The output of described second power splitter is connected with two second class tuners respectively.
7. digital TV terminal as claimed in claim 5 is characterized in that, also comprises: signal selecting switch;
Second output of described duplexer, second output that refers to described duplexer that links to each other with at least one second class tuner is to link to each other with two second class tuners by described signal selecting switch;
Second output of described duplexer links to each other with the input of described signal selecting switch;
The output of described signal selecting switch is connected with two second class tuners respectively.
8. digital TV terminal as claimed in claim 7 is characterized in that, also comprises: the secondary signal receiving terminal;
Described secondary signal receiving terminal is connected with another input of described signal selecting switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111701 CN203180959U (en) | 2013-03-12 | 2013-03-12 | Signal receiving apparatus and digital television terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320111701 CN203180959U (en) | 2013-03-12 | 2013-03-12 | Signal receiving apparatus and digital television terminal |
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| Publication Number | Publication Date |
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| CN203180959U true CN203180959U (en) | 2013-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320111701 Expired - Fee Related CN203180959U (en) | 2013-03-12 | 2013-03-12 | Signal receiving apparatus and digital television terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994322A (en) * | 2015-06-30 | 2015-10-21 | 深圳市九洲电器有限公司 | Television signal processing device and television set top box |
-
2013
- 2013-03-12 CN CN 201320111701 patent/CN203180959U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104994322A (en) * | 2015-06-30 | 2015-10-21 | 深圳市九洲电器有限公司 | Television signal processing device and television set top box |
| WO2017000732A1 (en) * | 2015-06-30 | 2017-01-05 | 深圳市九洲电器有限公司 | Television signal processing device and television set top box |
| CN104994322B (en) * | 2015-06-30 | 2018-09-04 | 深圳市九洲电器有限公司 | A kind of device and TV set-top box of processing television signals |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20150312 |
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| EXPY | Termination of patent right or utility model |