CN107820121A - Searching method, TV and the storage device of C-band satellite digital broadcasting channel - Google Patents
Searching method, TV and the storage device of C-band satellite digital broadcasting channel Download PDFInfo
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- CN107820121A CN107820121A CN201711077932.6A CN201711077932A CN107820121A CN 107820121 A CN107820121 A CN 107820121A CN 201711077932 A CN201711077932 A CN 201711077932A CN 107820121 A CN107820121 A CN 107820121A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000000149 penetrating effect Effects 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 229960001484 edetic acid Drugs 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 230000001174 ascending effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/18523—Satellite systems for providing broadcast service to terrestrial stations, i.e. broadcast satellite service
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/20—Adaptations for transmission via a GHz frequency band, e.g. via satellite
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention discloses the searching method of C-band satellite digital broadcasting channel, TV and storage device, methods described includes：The local frequency parameter and voltage parameter of receiver front end are set, and the frequency for controlling the tuner of satellite antenna to search in the range of predeterminated frequency penetrates signal；Demodulate the frequency that the tuner searches and penetrate signal, and judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner；When the frequency for determining the tuner locking satellite broadcast channel penetrates signal, parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal.By setting conventional local frequency, the local frequency of the tuner of the satellite antenna of user installation is matched, while optimizes the searching method of downstream frequency signal, the repeat search of identical signal is avoided, improves the search efficiency of C-band satellite digital broadcasting channel.
Description
Technical field
The present invention relates to TV technology, and in particular to the searching method of C-band satellite digital broadcasting channel, TV and
Storage device.
Background technology
With the continuous dispensing of commercial satellite, the area coverage of direct satellite broadcasting TV is also increasing, meanwhile, also improve
The quality of satellite television so that satellite television is becoming increasingly popular, still, in search of satellite television channel, if receiver
Searching algorithm it is unreasonable, search time can be caused to grow, and there is also the phenomenon of the identical signal of repeat search, so as to cause
The satellite TV channel of search repeats, such as：Protosatellite is actual 300 broadcasting channels, occurs 600 after searcher receiver
Channel.
Therefore, prior art has yet to be improved and developed.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of C-band satellite number
Searching method, TV and the storage device of word broadcasting channel, it is intended to by setting conventional local frequency, match user installation
The local frequency of the tuner of satellite antenna, while optimize the searching method of downstream frequency signal, avoid the repetition of identical signal
Search, improve the search efficiency of C-band satellite digital broadcasting channel.
The technical proposal for solving the technical problem of the invention is as follows：
A kind of searching method of C-band satellite digital broadcasting channel, wherein, the search of the C-band satellite digital broadcasting channel
Method includes：
The local frequency parameter and voltage parameter of receiver front end are set, and control the tuner of satellite antenna to search for predeterminated frequency
In the range of frequency penetrate signal；
Demodulate the frequency that the tuner searches and penetrate signal, and judge the tuner whether locking satellite broadcast channel
Frequency penetrates signal；
When the frequency for determining the tuner locking satellite broadcast channel penetrates signal, transport stream and the guarantor of receiver are parsed
There is the satellite digital broadcasting channel that frequency penetrates signal.
The searching method of described C-band satellite digital broadcasting channel, wherein, the local oscillator frequency that receiver front end is set
Rate parameter and voltage parameter, and the frequency for controlling the tuner of satellite antenna to search in the range of predeterminated frequency penetrate before signal include with
Lower step：
Join in advance in UI Preferences local frequency parameter list, the local frequency parameter list including the first local frequency
Number and the second local frequency parameter；
Opening satellite, double local oscillator is blind sweeps.
The searching method of described C-band satellite digital broadcasting channel, wherein, the local oscillator frequency that receiver front end is set
Rate parameter and voltage parameter, and the frequency for controlling the tuner of satellite antenna to search in the range of predeterminated frequency penetrates signal and includes following step
Suddenly：
Select the first local oscillator parameter in the local frequency parameter list, and match receiver front end local frequency parameter and
Voltage parameter；
The frequency that the tuner of control satellite antenna is searched in the range of the first predeterminated frequency penetrates signal.
The searching method of described C-band satellite digital broadcasting channel, wherein, what the demodulation tuner searched
Frequency penetrates signal, and judges the tuner whether the frequency of locking satellite broadcast channel penetrates signal to comprise the following steps：
The frequency that the tuner searches is obtained by modem and penetrates signal, acquired frequency is demodulated and penetrates signal；
Judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner.
The searching method of described C-band satellite digital broadcasting channel, wherein, it is described to judge whether the tuner locks
The frequency of satellite digital broadcasting channel comprises the following steps after penetrating signal：
When being, then parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；
When no, then judge the frequency of the tuner search whether more than the first predeterminated frequency scope；
When no, then will current search frequency increase by a predetermined value after continue executing with search；
When being, then the second local frequency parameter of the local frequency parameter list Satellite is selected to scan for.
The searching method of described C-band satellite digital broadcasting channel, wherein, the selection local frequency parameter row
Second local frequency parameter of table Satellite comprises the following steps after scanning for：
The second local frequency parameter of the local frequency parameter list Satellite is selected, and matches the frequency of receiver front end
Rate parameter and voltage parameter；
The frequency that the tuner of control satellite antenna is searched in the range of the second predeterminated frequency penetrates signal.
The searching method of described C-band satellite digital broadcasting channel, wherein, the tuner of the control satellite antenna is searched
Frequency in the range of the predeterminated frequency of rope second comprises the following steps after penetrating signal：
The frequency that the tuner searches is obtained by modem and penetrates signal, acquired frequency is demodulated and penetrates signal；
Judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner.
The searching method of described C-band satellite digital broadcasting channel, wherein, it is described to judge whether the tuner locks
The frequency of satellite digital broadcasting channel comprises the following steps after penetrating signal：
When being, then parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；
When no, then judge the frequency of the tuner search whether more than the second predeterminated frequency scope；
When no, will current search frequency increase by a predetermined value after continue executing with search；
When being, then blind sweep is exited.
A kind of TV, wherein, including processor, and the memory being connected with the processor, the memory storage
There is the search utility of C-band satellite digital broadcasting channel, the search utility of the C-band satellite digital broadcasting channel is by the place
Manage the searching method for realizing C-band satellite digital broadcasting channel when device performs.
A kind of storage device, wherein, the storage device is stored with the search utility of C-band satellite digital broadcasting channel,
It is used to realize that the C-band satellite digital is wide when the search utility of the C-band satellite digital broadcasting channel is executed by processor
Broadcast the searching method of channel.
The invention provides a kind of searching method, TV and the storage device of C-band satellite digital broadcasting channel, the side
Method includes：The local frequency parameter and voltage parameter of receiver front end are set, and controls the tuner of satellite antenna to search for and presets
Frequency in frequency range penetrates signal；Demodulate the frequency that the tuner searches and penetrate signal, and judge whether the tuner locks
The frequency of satellite digital broadcasting channel penetrates signal；When the frequency for determining the tuner locking satellite broadcast channel penetrates signal
When, parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal.By setting conventional local oscillator frequency
Rate, matches the local frequency of the tuner of the satellite antenna of user installation, while optimizes the searching method of downstream frequency signal, keeps away
Exempt from the repeat search of identical signal, improve the search efficiency of C-band satellite digital broadcasting channel.
Brief description of the drawings
Fig. 1 is a kind of flow of first preferred embodiment of the searching method of C-band satellite digital broadcasting channel of the present invention
Figure.
Fig. 2 is that a kind of first local frequency parameter of the searching method of C-band satellite digital broadcasting channel of the present invention is implemented
The flow chart of example.
Fig. 3 is that a kind of second local frequency parameter of the searching method of C-band satellite digital broadcasting channel of the present invention is implemented
The flow chart of example.
Fig. 4 is that a kind of function of the demodulator embodiment of the searching method of C-band satellite digital broadcasting channel of the present invention is former
Manage block diagram.
Fig. 5 is TV preferred embodiment functional schematic block diagram of the present invention.
Embodiment
To make the objects, technical solutions and advantages of the present invention clearer, clear and definite, develop simultaneously embodiment pair referring to the drawings
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Embodiment one
Fig. 1 is referred to, Fig. 1 is the stream of the first preferred embodiment of the searching method of C-band satellite digital broadcasting channel of the present invention
Cheng Tu.As shown in figure 1, a kind of searching method of C-band satellite digital broadcasting channel, wherein, comprise the following steps：
Step S100, sets the local frequency parameter and voltage parameter of receiver front end, and controls the tuner of satellite antenna to search
Frequency in the range of rope predeterminated frequency penetrates signal.
In the embodiment of the present invention, in advance in the conventional local frequency parameter list of UI Preferences, wherein, including first
Local frequency parameter（5150MHZ）With the second local frequency parameter（5750MHZ）；In practical operation, receiver front end is being set
Parameter when, select local frequency parameter to match the frequency parameter of receiver front end and voltage parameter, wherein, use first
Vibration frequency parameter（5150MHZ）When, voltage parameter 18V；Use the second local frequency parameter（5750MHZ）When, voltage parameter
For 13V；Search rate scope corresponding to different local frequency parameters is also different, wherein, use the first local frequency parameter
（5150MHZ）During with 18V voltages, tuner is that the MHZ of 950 MHZ ~ 1550 is penetrated by ascending searching downlink frequency of frequency
Frequency signal, when then exiting search to sweeping to 1550 MHZ；Use the second local frequency parameter（5750MHZ）During with 13V voltages,
Tuner is by ascending search more than 1550MHZ of frequency frequency, and to 2150MHZ, (indivedual tuners can under normal circumstances
To 2160MHZ) cut-off.
Step S200, demodulate the frequency that the tuner searches and penetrate signal, and judge the tuner whether locking satellite
The frequency of broadcast channel penetrates signal.
In the embodiment of the present invention, as shown in figure 4, master chip obtains the local frequency parameter and voltage ginseng of receiver front end
Number, is sent to demodulator, local frequency is used by demodulator（5150MHZ or 5750MHZ）And voltage（18V or 13V）Go to control
The radiofrequency signal of tuner search of satellite downstream frequency processed, after the tuner, which searches frequency, penetrates signal, the frequency that will search
To penetrate signal and be sent to demodulator, the radiofrequency signal for meeting local frequency that then demodulator sends tuner is demodulated, and
Judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner.
Step S300, when the frequency for determining the tuner locking satellite broadcast channel penetrates signal, parsing receives
The transport stream of machine simultaneously preserves the satellite digital broadcasting channel that frequency penetrates signal.
In the embodiment of the present invention, when the frequency for determining the tuner locking satellite broadcast channel penetrates signal, solution
Analyse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；Do not locked when determining the tuner
When the frequency of satellite digital broadcasting channel penetrates signal, then judge whether the frequency of the tuner search exceedes predeterminated frequency scope
（950MHZ ~ 1550MHZ or 1550MHZ ~ 2150MHZ）；When being not above predeterminated frequency scope, then current search frequency is increased
Add a predetermined value（The MHZ of predetermined value 1）After continue executing with search；When more than predeterminated frequency scope, then the local frequency is selected
Second local frequency parameter of parameter list Satellite scans for.
Wherein, the transport stream is exactly TS streams, is also code stream（Master chip parses code stream）, transport stream is MPEG II specifications
System layer propose, one of the two schemes that are multiplexed to multiplexed program, it is mainly for data in non-Reliability Channel
Transmission（Another scheme --- program stream is to be directed to the transmission of Reliability Channel and propose）, such as satellite channel, microwave channel
Or CATV channels；This mechanism of transport stream can by multi-path program multiplexing into one stream, also, same program can also include it is multiple
Video and audio stream, form transport stream is a series of continuous packets, and abbreviation TS bags, the forming process of transport stream is group
Into program video flowing and audio stream pass through basic stream encoder after, basic flow is formed, per video flowing or audio stream pair all the way
Answer basic flow all the way.Basic flow forms PES packet streams by packing.Each PES bag have traffic identifier, for regarding, audio decoder
The synchronous time stamp with playing, PES bags and other data, control information pass through multiplexer, form TS bags, the work of analyzing atransmission stream
Be preserve channel.
Further, in the embodiment of the present invention, as shown in Fig. 2 open satellite it is double local oscillator is blind sweep after, use the first local oscillator
Parameter（5150MHZ local frequencies）The parameter of receiver front end is set with 18V voltages, and then satellite antenna is controlled by master chip
Tuner go handle satellite downlink frequency signal, handle satellite downlink frequency signal when, tuner by frequency by it is small to
Big only the first predeterminated frequency scope of search（Downstream frequency is 950MHZ ~ 1550MHZ）Radiofrequency signal, when to sweeping to 1550MHZ
Then exit search.
Specifically include following steps：
Step S101, include first in UI Preferences local frequency parameter list, the local frequency parameter list in advance
Local frequency parameter and the second local frequency parameter；
Step S102, opening satellite, double local oscillator is blind sweeps；
Step S103, the first local oscillator parameter in the local frequency parameter list is selected, and match the local oscillator of receiver front end
Frequency parameter and voltage parameter；
Step S104, the frequency for controlling the tuner of satellite antenna to search in the range of the first predeterminated frequency penetrate signal；
Step S105, the frequency that the tuner searches is obtained by modem and penetrates signal, acquired frequency is demodulated and penetrates letter
Number, and judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner；
Step S106, when being, then parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；
Step S107, when no, then judge the frequency of the tuner search whether more than the first predeterminated frequency scope；
Step S108, when no, will current search frequency increase by a predetermined value after continue executing with search, execution step 105；
Step S109, when being, then the second local frequency parameter of the local frequency parameter list Satellite is selected to be searched
Rope.
Further, in the embodiment of the present invention, as shown in figure 3, when the tuner has searched for the first predeterminated frequency scope
It is interior（950MHZ~1550MHZ）Frequency penetrate signal after, use the second local frequency parameter（5750MHZ local frequencies）With 13V voltages
The parameter of receiver front end is set, and then controls the tuner of satellite antenna to go to handle satellite downlink frequency signal, tuner is pressed
Ascending the second predeterminated frequency scope of search of frequency（Downstream frequency is 1550MHZ ~ 2150MHZ）Radiofrequency signal, when to
Sweep to 2150MHZ and then exit blind sweep.
Specifically include following steps：
Step S201, selects the second local frequency parameter of the local frequency parameter list Satellite, and matches reception
The frequency parameter and voltage parameter of machine front end；
Step S202, the frequency for controlling the tuner of satellite antenna to search in the range of the second predeterminated frequency penetrate signal；
Step S203, the frequency that the tuner searches is obtained by modem and penetrates signal, acquired frequency is demodulated and penetrates letter
Number, and judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner；
Step S204, when being, then parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；
Step S205, when no, then judge the frequency of the tuner search whether more than the second predeterminated frequency scope；
Step S206, when no, will current search frequency increase by a predetermined value after continue executing with search, execution step 203；
Step S207, when being, then exit blind sweep.
Certainly, one of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method,
It is that related hardware can be instructed by the program of the search of C-band satellite digital broadcasting channel（Such as processor, controller etc.）
To complete, described program can be stored in a computer-readable storage device, and the program may include as above upon execution
State the flow of each method embodiment.Wherein described storage device can be memory, magnetic disc, CD etc..
Embodiment two
The embodiment of the present invention additionally provides a kind of TV, as shown in figure 5, it is preferred that the TV of the present embodiment is DTV, institute
Stating DTV includes processor 10, and the memory 20 being connected with the processor 10；
The memory 20 is stored with the search utility of C-band satellite digital broadcasting channel, the C-band satellite digital broadcasting channel
Search utility when being performed by the processor 10 for realizing the searching method of the C-band satellite digital broadcasting channel；Tool
Body is as described above.
Embodiment three
A kind of storage device, wherein, the storage device is stored with the search utility of C-band satellite digital broadcasting channel, the C ripples
The search utility of section satellite digital broadcasting channel is used to realize the C-band satellite digital broadcasting channel when being performed by processor 10
Searching method；As detailed above.
In summary, the invention discloses a kind of searching method of C-band satellite digital broadcasting channel, TV and storage dress
Put, methods described includes：The local frequency parameter and voltage parameter of receiver front end are set, and control the tuner of satellite antenna
Frequency in the range of search predeterminated frequency penetrates signal；Demodulate the frequency that the tuner searches and penetrate signal, and judge the tuner
Whether the frequency of locking satellite broadcast channel penetrates signal；When the frequency for determining the tuner locking satellite broadcast channel
When penetrating signal, parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal.Commonly used by setting
Local frequency, matches the local frequency of the tuner of the satellite antenna of user installation, while optimizes the search of downstream frequency signal
Method, the repeat search of identical signal is avoided, improve the search efficiency of C-band satellite digital broadcasting channel.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (10)
- A kind of 1. searching method of C-band satellite digital broadcasting channel, it is characterised in that the C-band satellite digital broadcasting frequency The searching method in road includes：The local frequency parameter and voltage parameter of receiver front end are set, and control the tuner of satellite antenna to search for predeterminated frequency In the range of frequency penetrate signal；Demodulate the frequency that the tuner searches and penetrate signal, and judge the tuner whether locking satellite broadcast channel Frequency penetrates signal；When the frequency for determining the tuner locking satellite broadcast channel penetrates signal, transport stream and the guarantor of receiver are parsed There is the satellite digital broadcasting channel that frequency penetrates signal.
- 2. the searching method of C-band satellite digital broadcasting channel according to claim 1, it is characterised in that the setting The local frequency parameter and voltage parameter of receiver front end, and control the tuner of satellite antenna to search in the range of predeterminated frequency Frequency comprises the following steps before penetrating signal：Join in advance in UI Preferences local frequency parameter list, the local frequency parameter list including the first local frequency Number and the second local frequency parameter；Opening satellite, double local oscillator is blind sweeps.
- 3. the searching method of C-band satellite digital broadcasting channel according to claim 2, it is characterised in that the setting The local frequency parameter and voltage parameter of receiver front end, and control the tuner of satellite antenna to search in the range of predeterminated frequency Frequency is penetrated signal and comprised the following steps：Select the first local oscillator parameter in the local frequency parameter list, and match receiver front end local frequency parameter and Voltage parameter；The frequency that the tuner of control satellite antenna is searched in the range of the first predeterminated frequency penetrates signal.
- 4. the searching method of C-band satellite digital broadcasting channel according to claim 3, it is characterised in that the demodulation The frequency that the tuner searches penetrates signal, and judges whether the frequency of locking satellite broadcast channel penetrates signal to the tuner Comprise the following steps：The frequency that the tuner searches is obtained by modem and penetrates signal, acquired frequency is demodulated and penetrates signal；Judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner.
- 5. the searching method of C-band satellite digital broadcasting channel according to claim 4, it is characterised in that the judgement Whether penetrate after signal the tuner comprise the following steps by the frequency of locking satellite broadcast channel：When being, then parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；When no, then judge the frequency of the tuner search whether more than the first predeterminated frequency scope；When no, then will current search frequency increase by a predetermined value after continue executing with search；When being, then the second local frequency parameter of the local frequency parameter list Satellite is selected to scan for.
- 6. the searching method of C-band satellite digital broadcasting channel according to claim 5, it is characterised in that the selection Second local frequency parameter of the local frequency parameter list Satellite comprises the following steps after scanning for：The second local frequency parameter of the local frequency parameter list Satellite is selected, and matches the frequency of receiver front end Rate parameter and voltage parameter；The frequency that the tuner of control satellite antenna is searched in the range of the second predeterminated frequency penetrates signal.
- 7. the searching method of C-band satellite digital broadcasting channel according to claim 6, it is characterised in that the control The frequency that the tuner of satellite antenna is searched in the range of the second predeterminated frequency comprises the following steps after penetrating signal：The frequency that the tuner searches is obtained by modem and penetrates signal, acquired frequency is demodulated and penetrates signal；Judge whether the frequency of locking satellite broadcast channel penetrates signal to the tuner.
- 8. the searching method of C-band satellite digital broadcasting channel according to claim 7, it is characterised in that the judgement Whether penetrate after signal the tuner comprise the following steps by the frequency of locking satellite broadcast channel：When being, then parse the transport stream of receiver and preserve the satellite digital broadcasting channel that frequency penetrates signal；When no, then judge the frequency of the tuner search whether more than the second predeterminated frequency scope；When no, will current search frequency increase by a predetermined value after continue executing with search；When being, then blind sweep is exited.
- A kind of 9. TV, it is characterised in that including processor, and the memory being connected with the processor, the memory The search utility of C-band satellite digital broadcasting channel is stored with, the search utility of the C-band satellite digital broadcasting channel is by institute For realizing the searching methods of any one of the claim 1-8 C-band satellite digital broadcasting channels when stating computing device.
- 10. a kind of storage device, it is characterised in that the storage device is stored with the search of C-band satellite digital broadcasting channel Program, it is used to realize that claim 1-8 is any when the search utility of the C-band satellite digital broadcasting channel is executed by processor The searching method of the item C-band satellite digital broadcasting channel.
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| CN109561269A (en) * | 2018-12-04 | 2019-04-02 | 安徽站乾科技有限公司 | A kind of simplicity based on automatic identification tuner relevant parameter searches star device |
| CN109714578A (en) * | 2018-12-05 | 2019-05-03 | 安徽站乾科技有限公司 | A kind of fast quick satellite-searching method of satellite TV system |
| CN112400286A (en) * | 2018-07-11 | 2021-02-23 | 韦斯特尔电子工业和贸易有限责任公司 | Satellite dish LNB, satellite broadcast signal receiver and method of operating the same |
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