CN106714005A - Satellite set-top box data transmission method and system - Google Patents
Satellite set-top box data transmission method and system Download PDFInfo
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- CN106714005A CN106714005A CN201611226892.2A CN201611226892A CN106714005A CN 106714005 A CN106714005 A CN 106714005A CN 201611226892 A CN201611226892 A CN 201611226892A CN 106714005 A CN106714005 A CN 106714005A
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- data
- top box
- supplemental characteristic
- set top
- satellite set
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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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
- H04N21/6143—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a satellite
-
- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
- H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
- H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/10—Adaptations for transmission by electrical cable
-
- 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)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
The invention relates to a satellite set-top box data transmission method and system. A coaxial cable between a satellite set-top box and an antenna tuner is used, a 22KHZ carrier signal is loaded on the coaxial cable to perform data transmission, parameter data of the satellite set-top box are packaged and converted, so that the parameter data can be adjusted to the 22KHZ carrier signal to be transmitted to the tuner, thereby realizing the transmission of the parameter data of the satellite set-top box to the tuner, the antenna can accurately obtain the parameter data of the satellite set-top box after performing analysis by an external data analysis device, and can perform accurate position adjustment and search, accordingly a user can accurately adjust the position of the antenna, the search efficiency and result are very accurate, the user can conveniently use the antenna, and great convenience is brought to the user.
Description
Technical field
The present invention relates to the communications field, more particularly to a kind of satellite set top box data transmission method and system.
Background technology
At present, satellite set top box by antenna operationally, it is necessary to receive satellite TV signal.Satellite set top box is being searched
When rope and regulation aerial position, because antenna is mostly placed on outdoor, what user cannot be promptly and accurately learns present satellites machine
The isoparametric actual conditions of top box lock-out state, signal quality, intensity, the bit error rate, this gives adjustment aerial position and satellite acquisition
Efficiency exerts a certain influence, and user can not accurately be adjusted to aerial position, and search efficiency and result are inaccurate,
The use of user is influenceed, great inconvenience is brought to user.
The content of the invention
In view of this, it is necessary to for above-mentioned satellite set top box in satellite acquisition and adjustment aerial position, it is impossible in time
The accurate problem for obtaining satellite set top box parameter, there is provided a kind of satellite set top box data transmission method and system.
A kind of satellite set top box data transmission method that the present invention is provided, comprises the following steps：
S10：The carrier signal of 22KHZ is loaded on coaxial cable between satellite set top box and antenna tuner；
S20：The supplemental characteristic of satellite set top box is packaged according to preset data host-host protocol, after encapsulation reconvert into
Bit signal, can modulate in the carrier signal of 22KHZ after supplemental characteristic is encapsulated and is changed；
S30：Supplemental characteristic after encapsulating and changing is modulated onto the carrier signal of 22KHZ, is transmitted by coaxial cable
To the tuner of antenna；
S40：An external data analyzing device at tuner, receives the carrier signal of 22KHZ and obtains encapsulation transition
Supplemental characteristic afterwards is parsed, and the supplemental characteristic for obtaining satellite set top box transfers to tuner, antenna is obtained satellite set top box
Supplemental characteristic.
It is described to be packaged according to preset data host-host protocol in one of which implementation method, the parameter after encapsulation
Data form includes：Data frame head, control command, valid data and verification data；
The data frame head：Control data field；
The control command：Define satellite set top box and order is controlled to tuner；
The valid data：Transmission actual parameter data；
The verification data：Data frame head, control command and valid data are verified by parity check bit.
In one of which implementation method, the data frame head is set as 8bit, and the control command is set as 8bit,
The valid data are set as 8bit, and the verification data is set as 2bit.
In one of which implementation method, the second byte of a upper verification data is used as the of next verification data
One byte.
In one of which implementation method, if supplemental characteristic is more than setting value, supplemental characteristic is divided into multiple effective
Data are transmitted, and remerge into complete supplemental characteristic after transmission.
A kind of satellite set top box data transmission system that the present invention is provided, including：
Carrier signal loading unit, loads 22KHZ's on the coaxial cable between satellite set top box and antenna tuner
Carrier signal；
Supplemental characteristic encapsulation unit, the supplemental characteristic of satellite set top box is packaged according to preset data host-host protocol,
Reconvert can be modulated in the carrier signal of 22KHZ into bit signal after supplemental characteristic is encapsulated and is changed after encapsulation；
Data modulating unit, the supplemental characteristic after encapsulating and changing is modulated onto the carrier signal of 22KHZ, by coaxial
Tuner of the cable transmission to antenna；
Data analyzing device, it is external with tuner, receive the carrier signal of 22KHZ and obtain the parameter number after encapsulation transition
According to being parsed, the supplemental characteristic for obtaining satellite set top box transfers to tuner, antenna is obtained the supplemental characteristic of satellite set top box.
In one of which implementation method, the supplemental characteristic encapsulation unit is sealed according to preset data host-host protocol
Dress, the supplemental characteristic form after encapsulation includes：Data frame head, control command, valid data and verification data；
The data frame head：Control data field；
The control command：Define satellite set top box and order is controlled to tuner；
The valid data：Transmission actual parameter data；
The verification data：Data frame head, control command and valid data are verified by parity check bit.
In one of which implementation method, the data frame head is set as 8bit, and the control command is set as 8bit,
The valid data are set as 8bit, and the verification data is set as 2bit.
In one of which implementation method, the second byte of a upper verification data is used as the of next verification data
One byte.
In one of which implementation method, if supplemental characteristic is more than setting value, the supplemental characteristic encapsulation unit then will
Supplemental characteristic is divided into multiple valid data to be transmitted, and complete supplemental characteristic is remerged into after transmission.
Satellite set top box data transmission method of the present invention and system, using same between satellite set top box and antenna tuner
Shaft cable, the carrier signal that 22KHZ is loaded on coax carries out data transmission, and the supplemental characteristic of satellite set top box is entered
Row encapsulation and conversion, enable supplemental characteristic to be adjusted to be transferred to tuner in the carrier signal of 22KHZ, so as to realize subhost
Top box supplemental characteristic enables that antenna is accurately obtained to the transmission of tuner after being parsed using external data analyzing device
The supplemental characteristic of satellite set top box is got, accurate position adjustment and search is carried out, allowed users to accurately to aerial position
It is adjusted, search efficiency and result are very accurate, allows users to easily use, brings great advantage to the user.
Brief description of the drawings
Fig. 1 is the flow chart of the satellite set top box data transmission method in one embodiment；
Fig. 2 is the supplemental characteristic encapsulation format schematic diagram in one embodiment；
Fig. 3 is the structure chart of the satellite set top box data transmission system in one embodiment.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
It is connected by coaxial cable between satellite set top box and the tuner (LNB) of antenna, can on coaxial cable
Loading carrier signal carries out data transmission, therefore the inventive method passes through what is be connected between satellite set top box and tuner (LNB)
Coaxial cable, is carried out data transmission using coaxial cable, and the supplemental characteristic of satellite set top box is transferred to the tuner of antenna,
So that antenna end can be promptly and accurately obtain the current supplemental characteristic of satellite set top box, accurately adjustment aerial position and
Scan for.
Fig. 1 is the flow chart of the satellite set top box data transmission method in one embodiment, as shown in figure 1, the method bag
Include following steps：
S10：The carrier wave letter of 22KHZ (frequency) is loaded on coaxial cable between satellite set top box and antenna tuner
Number.
Loading carrier signal can carry out data transmission between satellite set top box and antenna on coax, to avoid
Disturb and preferably utilize carrier signal, in the embodiment, the carrier signal of 22KHZ frequencies is loaded on coax, be used for
The data of transmitting satellite Set Top Box.
S20：The supplemental characteristic of satellite set top box is packaged according to preset data host-host protocol, after encapsulation reconvert into
Bit signal, can modulate in the carrier signal of 22KHZ after supplemental characteristic is encapsulated and is changed.
Because the supplemental characteristic of satellite set top box directly can not be transmitted by the carrier signal on coaxial cable, therefore need
By the supplemental characteristic of satellite set top box according to the Data Transport Protocol that can be modulated in 22KHZ carrier signals to supplemental characteristic
It is packaged so that supplemental characteristic can be transmitted by coaxial cable.
In this embodiment, it is packaged according to preset data host-host protocol, the supplemental characteristic form such as Fig. 2 institutes after encapsulation
Show, including：Data frame head (FARAMING), control command (COMMAND), valid data (DATA) and verification data (CHECK).
Wherein, data frame head：Control data field, points out this data for the privately owned communication data of tuner, contains data
The information such as source, type, miscue, are set as 8bit.
Control command：Define satellite set top box and order, including supplying power for tuner control are controlled to tuner, data are passed
It is defeated to terminate order etc., it is set as 8bit.
Valid data：Transmission actual parameter data, are set as 8bit.
Verification data：Data frame head, control command and valid data are verified by parity check bit, are set as 2bit.
Further, the second byte of a upper verification data as next verification data the first byte.
In data transmission procedure, because the length of packet is fixed, the complexity of parsing is reduced, by data
Frame head, carrys out specification protocol in itself, while containing data type.Control command carrys out the operation such as determination data transmission ending.Passing
When defeated, it is contemplated that supplemental characteristic than it is larger when, the carrier signal of data may require that longer time transmission and parse, and so exist
Antijamming capability will decline in transmitting procedure, and by shorter packet come divided stator frame, can effectively improve anti-interference energy
Power, and be conducive to terminal log according to fast resolving is carried out, supplemental characteristic is then divided into multiple by supplemental characteristic if greater than setting value
Valid data are transmitted, and remerge into complete supplemental characteristic after transmission.In addition, each data has check bit, effectively
Guarantee data integrality.
S30：Supplemental characteristic after encapsulating and changing is modulated onto the carrier signal of 22KHZ, is transmitted by coaxial cable
To the tuner of antenna.
After finishing and being converted to the bit signal that can be transmitted by supplemental characteristic encapsulation, supplemental characteristic can be with load-modulate
Onto the carrier signal of 22KHZ, tuner is transferred to by satellite set top box by coaxial cable.
S40：An external data analyzing device at tuner, receives the carrier signal of 22KHZ and obtains encapsulation transition
Supplemental characteristic afterwards is parsed, and the supplemental characteristic for obtaining satellite set top box transfers to tuner, antenna is obtained satellite set top box
Supplemental characteristic.
The supplemental characteristic of the carrier signal transmission of 22KHZ can not be parsed due to tuner, therefore is needed in the embodiment outer
A data analyzing device is connect, for receiving the supplemental characteristic of the carrier signal transmission of 22KHZ and being parsed, satellite is parsed
Tuner is given after the supplemental characteristic of Set Top Box so that antenna can be accurately obtained the supplemental characteristic of satellite set top box, carry out
Accurate position adjustment and search.
The satellite set top box data transmission method, using the coaxial cable between satellite set top box and antenna tuner,
The carrier signal that 22KHZ is loaded on coaxial cable carries out data transmission, and the supplemental characteristic of satellite set top box is packaged and
Conversion, enables supplemental characteristic to be adjusted to be transferred to tuner in the carrier signal of 22KHZ, so as to realize satellite set top box parameter
Data enable that antenna is accurately obtained satellite to the transmission of tuner after being parsed using external data analyzing device
The supplemental characteristic of Set Top Box, carries out accurate position adjustment and search, allows users to accurately be adjusted aerial position,
Search efficiency and result are very accurate, allow users to easily use, and bring great advantage to the user.
Meanwhile, the present invention also provides a kind of satellite set top box data transmission system, as shown in figure 3, the system includes：
Carrier signal loading unit 100,22KHZ is loaded on the coaxial cable between satellite set top box and antenna tuner
The carrier signal of (frequency).
Loading carrier signal can carry out data transmission between satellite set top box and antenna on coax, to avoid
Disturb and preferably utilize carrier signal, in the embodiment, carrier signal loading unit 100 loads 22KHZ on coax
The carrier signal of frequency, for the data of transmitting satellite Set Top Box.
Supplemental characteristic encapsulation unit 200, the supplemental characteristic of satellite set top box is sealed according to preset data host-host protocol
Dress, reconvert can be modulated in the carrier signal of 22KHZ into bit signal after supplemental characteristic is encapsulated and is changed after encapsulation.
Because the supplemental characteristic of satellite set top box directly can not be transmitted by the carrier signal on coaxial cable, therefore ginseng
Number data packaging unit 200 is needed the supplemental characteristic of satellite set top box according to the number that can be modulated in 22KHZ carrier signals
Supplemental characteristic is packaged according to host-host protocol so that supplemental characteristic can be transmitted by coaxial cable.
In this embodiment, supplemental characteristic encapsulation unit 200 is packaged according to preset data host-host protocol, after encapsulation
Supplemental characteristic form as shown in Fig. 2 including：Data frame head (FARAMING), control command (COMMAND), valid data
And verification data (CHECK) (DATA).
Wherein, data frame head：Control data field, points out this data for the privately owned communication data of tuner, contains data
The information such as source, type, miscue, are set as 8bit.
Control command：Define satellite set top box and order, including supplying power for tuner control are controlled to tuner, data are passed
It is defeated to terminate order etc., it is set as 8bit.
Valid data：Transmission actual parameter data, are set as 8bit.
Verification data：Data frame head, control command and valid data are verified by parity check bit, are set as 2bit.
Further, the second byte of a upper verification data as next verification data the first byte.
In data transmission procedure, because the length of packet is fixed, the complexity of parsing is reduced, by data
Frame head, carrys out specification protocol in itself, while containing data type.Control command carrys out the operation such as determination data transmission ending.Passing
When defeated, it is contemplated that supplemental characteristic than it is larger when, the carrier signal of data may require that longer time transmission and parse, and so exist
Antijamming capability will decline in transmitting procedure, and by shorter packet come divided stator frame, can effectively improve anti-interference energy
Power, and be conducive to terminal log according to fast resolving is carried out, if supplemental characteristic is more than setting value, supplemental characteristic encapsulation unit 200
Supplemental characteristic then is divided into multiple valid data to be transmitted, complete supplemental characteristic is remerged into after transmission.In addition, each
Data have check bit, the integrality of the effective data for ensureing.
Data modulating unit 300, the supplemental characteristic after encapsulating and changing is modulated onto the carrier signal of 22KHZ, is passed through
Coaxial cable is transferred to the tuner of antenna.
After finishing and being converted to the bit signal that can be transmitted by supplemental characteristic encapsulation, data modulating unit 300 will join
Data load-modulate is counted to the carrier signal of 22KHZ, tuner is transferred to by satellite set top box by coaxial cable.
Data analyzing device 400, it is external with tuner, receive the carrier signal of 22KHZ and obtain the ginseng after encapsulation transition
Number data are parsed, and the supplemental characteristic for obtaining satellite set top box transfers to tuner, antenna is obtained the parameter of satellite set top box
Data.
The supplemental characteristic of the carrier signal transmission of 22KHZ can not be parsed due to tuner, therefore is needed in the embodiment outer
A data analyzing device 400 is connect, for receiving the supplemental characteristic of the carrier signal transmission of 22KHZ and being parsed, is parsed
Tuner is given after the supplemental characteristic of satellite set top box so that antenna can be accurately obtained the supplemental characteristic of satellite set top box,
Carry out accurate position adjustment and search.
The satellite set top box data transmission system, using the coaxial cable between satellite set top box and antenna tuner, carries
The carrier signal that ripple signal loading unit 100 loads 22KHZ on coax carries out data transmission, supplemental characteristic encapsulation unit
The supplemental characteristic of satellite set top box is packaged and changed by 200, supplemental characteristic is adjusted in the carrier signal of 22KHZ
Tuner is transferred to, so as to realize satellite set top box supplemental characteristic to the transmission of tuner, using external data analyzing device
40 parsed after antenna is accurately obtained satellite set top box supplemental characteristic, carry out accurate position adjustment and search
Rope, allows users to accurately be adjusted aerial position, and search efficiency and result are very accurate, allow users to easily
Use, bring great advantage to the user.
Satellite set top box data transmission method of the present invention and system, using same between satellite set top box and antenna tuner
Shaft cable, the carrier signal that 22KHZ is loaded on coax carries out data transmission, and the supplemental characteristic of satellite set top box is entered
Row encapsulation and conversion, enable supplemental characteristic to be adjusted to be transferred to tuner in the carrier signal of 22KHZ, so as to realize subhost
Top box supplemental characteristic enables that antenna is accurately obtained to the transmission of tuner after being parsed using external data analyzing device
The supplemental characteristic of satellite set top box is got, accurate position adjustment and search is carried out, allowed users to accurately to aerial position
It is adjusted, search efficiency and result are very accurate, allows users to easily use, brings great advantage to the user.
These are only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Any modification, equivalent and improvement for being made within principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of satellite set top box data transmission method, it is characterised in that comprise the following steps：
S10：The carrier signal of 22KHZ is loaded on coaxial cable between satellite set top box and antenna tuner；
S20：The supplemental characteristic of satellite set top box is packaged according to preset data host-host protocol, reconvert is into bit after encapsulation
Signal, can modulate in the carrier signal of 22KHZ after supplemental characteristic is encapsulated and is changed；
S30：Supplemental characteristic after encapsulating and changing is modulated onto the carrier signal of 22KHZ, and day is transferred to by coaxial cable
The tuner of line；
S40：An external data analyzing device at tuner, receives the carrier signal of 22KHZ and after obtaining encapsulation transition
Supplemental characteristic is parsed, and the supplemental characteristic for obtaining satellite set top box transfers to tuner, antenna is obtained the ginseng of satellite set top box
Number data.
2. satellite set top box data transmission method according to claim 1, it is characterised in that described to be passed according to preset data
Defeated agreement is packaged, and the supplemental characteristic form after encapsulation includes：Data frame head, control command, valid data and verification data；
The data frame head：Control data field；
The control command：Define satellite set top box and order is controlled to tuner；
The valid data：Transmission actual parameter data；
The verification data：Data frame head, control command and valid data are verified by parity check bit.
3. satellite set top box data transmission method according to claim 2, it is characterised in that the data frame head is set as
8bit, the control command is set as 8bit, and the valid data are set as 8bit, and the verification data is set as 2bit.
4. satellite set top box data transmission method according to claim 3, it is characterised in that the of a upper verification data
Two bytes as next verification data the first byte.
5. satellite set top box data transmission method according to claim 3, it is characterised in that if supplemental characteristic is more than setting
Value, then be divided into multiple valid data to be transmitted by supplemental characteristic, and complete supplemental characteristic is remerged into after transmission.
6. a kind of satellite set top box data transmission system, it is characterised in that including：
Carrier signal loading unit, loads the carrier wave of 22KHZ on the coaxial cable between satellite set top box and antenna tuner
Signal；
Supplemental characteristic encapsulation unit, the supplemental characteristic of satellite set top box is packaged according to preset data host-host protocol, encapsulation
Reconvert can be modulated in the carrier signal of 22KHZ into bit signal after supplemental characteristic is encapsulated and is changed afterwards；
Data modulating unit, the supplemental characteristic after encapsulating and changing is modulated onto the carrier signal of 22KHZ, by coaxial cable
It is transferred to the tuner of antenna；
Data analyzing device, external with tuner, the supplemental characteristic for receiving the carrier signal of 22KHZ and obtaining after encapsulation transition enters
Row parsing, the supplemental characteristic for obtaining satellite set top box transfers to tuner, antenna is obtained the supplemental characteristic of satellite set top box.
7. satellite set top box data transmission system according to claim 6, it is characterised in that the supplemental characteristic encapsulation is single
Unit is packaged according to preset data host-host protocol, and the supplemental characteristic form after encapsulation includes：Data frame head, control command, have
Effect data and verification data；
The data frame head：Control data field；
The control command：Define satellite set top box and order is controlled to tuner；
The valid data：Transmission actual parameter data；
The verification data：Data frame head, control command and valid data are verified by parity check bit.
8. satellite set top box data transmission system according to claim 7, it is characterised in that the data frame head is set as
8bit, the control command is set as 8bit, and the valid data are set as 8bit, and the verification data is set as 2bit.
9. satellite set top box data transmission system according to claim 8, it is characterised in that the of a upper verification data
Two bytes as next verification data the first byte.
10. satellite set top box data transmission system according to claim 9, it is characterised in that if supplemental characteristic is more than setting
Supplemental characteristic is then divided into multiple valid data to be transmitted by definite value, the supplemental characteristic encapsulation unit, is remerged after transmission
Into complete supplemental characteristic.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226892.2A CN106714005B (en) | 2016-12-27 | 2016-12-27 | Satellite set top box data transmission method and system |
| PCT/CN2017/106332 WO2018121000A1 (en) | 2016-12-27 | 2017-10-16 | Data transmission method and system of satellite set top box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611226892.2A CN106714005B (en) | 2016-12-27 | 2016-12-27 | Satellite set top box data transmission method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106714005A true CN106714005A (en) | 2017-05-24 |
| CN106714005B CN106714005B (en) | 2019-08-13 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611226892.2A Expired - Fee Related CN106714005B (en) | 2016-12-27 | 2016-12-27 | Satellite set top box data transmission method and system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN106714005B (en) |
| WO (1) | WO2018121000A1 (en) |
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| WO2018121000A1 (en) * | 2016-12-27 | 2018-07-05 | 深圳市九洲电器有限公司 | Data transmission method and system of satellite set top box |
| CN109936765A (en) * | 2019-04-16 | 2019-06-25 | 珠海迈越信息技术有限公司 | A method of automatically analyzing set-top box satellite programme information |
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| CN109936765A (en) * | 2019-04-16 | 2019-06-25 | 珠海迈越信息技术有限公司 | A method of automatically analyzing set-top box satellite programme information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106714005B (en) | 2019-08-13 |
| WO2018121000A1 (en) | 2018-07-05 |
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