CN202652220U - Satellite communication terminal based on network protocol - Google Patents
Satellite communication terminal based on network protocol Download PDFInfo
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- CN202652220U CN202652220U CN 201120575608 CN201120575608U CN202652220U CN 202652220 U CN202652220 U CN 202652220U CN 201120575608 CN201120575608 CN 201120575608 CN 201120575608 U CN201120575608 U CN 201120575608U CN 202652220 U CN202652220 U CN 202652220U
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Abstract
The utility model discloses a satellite communication terminal based on a network protocol, relating to a channel transmission communication device based on a multi-channel per carrier/demand assignment system in the satellite communication field. The satellite communication terminal is formed by a video encoding and decoding module, a voice gateway module, a modem module, a network access control module, a mixer, a splitter, a power supply and the like. A computer is connected with the terminal through a network cable to implement control so as to change working parameters of the terminal and display a working state of the terminal, and the application of multi-channel per carrier/demand assignment system networking is realized. The satellite communication terminal has the advantages of fast aiming of a satellite, light weight, portability and convenient operation, all services are supported by network transmission, a whole set of circuit device is integrated in a case with a depth of 430mm, and the satellite communication terminal is especially suitable for being used in conjunction with a corresponding small antenna to be used as a knapsack satellite station.
Description
Technical field
The utility model relates to the satellite communication terminal of a kind of agreement Network Based in the wireless communication field, is specially adapted to as the communication terminal in MF Multi-Channel Per Carrier/distribution according to need satellite communication system.
Background technology
Because the characteristics such as broad covered area, communication distance are far away, networking flexibility, mobility are superior, the application of satellite communication is more and more wide, be widely applied based on MF Multi-Channel Per Carrier/demand assigned satellite communication networking mode, this networking mode flexible, that resource utilization is high is had higher requirement to satellite communication terminal.
The utility model content
The purpose of this utility model is to avoid the weak point in the above-mentioned background technology and a kind of satellite communication terminal of the agreement Network Based that can work under than rugged environment (10 ℃～55 ℃) condition is provided, and the utility model also has the characteristics such as multi-service, multi-mode, many speed, integrated degree be high, stable and reliable for performance, lightweight, low in energy consumption, simple in structure.
The purpose of this utility model is achieved in that it is by coding and decoding video module 1, voice gateways module 2, Network access control module 3, modulator-demodulator 4, the satellite communication terminal of the agreement Network Based that power supply 5 forms, it is characterized in that: also have mixer 6, splitter 7 forms, wherein splitter 7 enters to hold 1 pin to be connected with outside L frequency range intermediate frequency input port A, splitter 7 goes out end 2 pin and enters to hold 2 pin to be connected with modulator-demodulator 4, splitter 7 goes out end 3 pin and enters to hold 4 pin to be connected with modulator-demodulator 4, mixer 6 goes out end 1 pin and is connected with outside L frequency range medium frequency output end mouth B, mixer 6 enters end 2 pin and goes out to hold 3 pin to be connected with modulator-demodulator 4, mixer 6 enters end 3 pin and goes out to hold 5 pin to be connected with modulator-demodulator 4, modulator-demodulator 4 enters out end 1 pin and enters out end 3 pin with Network access control module 3 and be connected, Network access control module 3 enters out end 1 pin and enters out end 1 pin with coding and decoding video module 1 and be connected, Network access control module 3 enters out end 2 pin and enters out end 1 pin with voice gateways module 2 and be connected, coding and decoding video module 1 enters end 2 pin and is connected with external video input port D, coding and decoding video module 1 goes out end 3 pin and is connected with external video output port E, voice gateways module 2 enters out end 2 pin and enters out end C with external call and be connected power supply 5 outbound ports+V1, + V2, + V3 voltage end is connected with each parts respective electrical source.
Coding and decoding video module (1) is carried out analog-to-digital conversion with the signal of the video equipment input of outside, Video coding changes network data into after processing, voice gateways module (2) carries out the signal of outside voice device input to be converted to network data after speech coding is processed, the network data that Network access control module 3 receiver, video coding/decoding modules 1 and voice gateways module 2 are sent here is also accelerated, change synchrodata after the processing such as Route Selection into, modulator-demodulator 4 carries out error correction coding with the synchrodata that receives, changing intermediate-freuqncy signal after the modulation treatment into sends intermediate-freuqncy signal by mixer 6, same splitter 7 receives the outside intermediate-freuqncy signal of sending here and sends into modulator-demodulator 4 and carry out demodulation, change synchrodata after the processing such as channel decoding into, the synchrodata that Network access control module 3 receiving modems 4 are sent here is carried out after the processing such as Route Selection according to the different network addresss network data being sent into respectively coding and decoding video module 1 and voice gateways module 2, coding and decoding video module 1 is converted to vision signal with corresponding network data and gives outside video equipment, and the voice gateways module is converted to voice signal with corresponding network data and gives outside voice device.
The utility model modulator-demodulator 4 is by the professional modulator-demodulator 9 of base band webmaster modulator-demodulator 8, base band, webmaster ifd module 10, and professional ifd module 11 forms.
Wherein base band webmaster modulator-demodulator 8 enters out end 1 pin and enters out end 3 pin with Network access control module 3 and be connected, base band webmaster modem module 8 enters out end 2 pin and enters out end 1 pin with webmaster ifd module 10 and be connected, webmaster ifd module 10 enters end 2 pin and goes out to hold 2 pin to be connected with splitter 7, webmaster ifd module 10 goes out end 3 pin and enters to hold 2 pin to be connected with mixer 6, the professional modem module 9 of base band enters out end 1 pin and enters out end 3 pin with Network access control module 3 and be connected, the professional modem module 9 of base band enters out end 2 pin and enters out end 1 pin with professional ifd module 11 and be connected, professional ifd module 11 enters end 4 pin and is connected with splitter 7 outbound ports 3 pin, and professional intermediate frequency 11 goes out end 3 pin and enters to hold 3 pin to be connected with mixer 6.
The network management information that base band webmaster modulator-demodulator 8 reception Network access control modules 3 are sent here also carries out error correction coding, be converted to modulated intermediate frequency signal after the modulation treatment, webmaster ifd module 10 receives modulated intermediate frequency signal and carries out intermediate frequency filtering, the modulated intermediate frequency signal of output L frequency range is also by mixer 6 outputs after the upconversion process, webmaster ifd module 10 receives webmaster L frequency range intermediate-freuqncy signal and carries out down-conversion by splitter, after processing, filtering changes the intermediate-freuqncy signal that is fit to the analog to digital converter input into, base band webmaster modulator-demodulator 8 carries out down-conversion, digital filtering, demodulation, error correction decoding is converted to network management information after processing, send into Network access control module 3, the professional modulator-demodulator 9 of base band receives business information and carries out error correction coding, be converted to modulated intermediate frequency signal after the modulation treatment, professional ifd module 11 receives modulated intermediate frequency signal and carries out intermediate frequency filtering, the modulated intermediate frequency signal of output L frequency range and export by mixer after the upconversion process, professional ifd module 11 receives professional intermediate-freuqncy signal by splitter 7 to carry out changing the intermediate-freuqncy signal that is fit to the analog to digital converter input into after the down-converted, the professional modulator-demodulator 9 of base band carries out down-conversion, digital filtering, demodulation, be converted to business information behind the error correction decoding, send into Network access control module 3 and process.
The utility model Network access control module 6 is comprised of access module 12, Switching Module 13.Wherein, access module 12 enters out end 1 pin and enters out end 1 pin with coding and decoding video module 1 and be connected, access module 12 enters out end 2 pin and enters out end 1 pin with voice gateways module 2 and be connected, Network access control module 12 enters out end 3 pin and enters out end 1 pin with Switching Module 13 and be connected, and Switching Module 13 enters out end 3 pin and enters out end 1 pin with modulator-demodulator 4 and be connected.
Switching Module 13 receives outside network signal, and the network signal of access accelerates in access module 12, Route Selection, be converted to synchrodata after processing synchronously, enters modulator-demodulator 4 and carries out modulation /demodulation and process.
The utility model is compared with background technology has following advantage:
1. the utility model is a kind of IP ICBM SHF satellite terminal that possesses manually star and Network Management Function, can be by manually the star pattern being possessed the star function, can realize all terminals, professional unified management function by Network Management Function.The utlity model has data rate and IF-FRE, modulation system variable, support the characteristics such as multiple business, possess simultaneously perfect monitoring function, therefore in satellite communication system, be widely used.
2. the integrated degree of the utility model is high, low in energy consumption, and the machine debugging workload is little, and is stable and reliable for performance, can work under than rugged environment (10 ℃～55 ℃) condition.
3. the utility model adopts the standard profile structure, and is simple in structure, and inner compact, cost is low, has application value.
Description of drawings
Fig. 1 is functional-block diagram of the present utility model.
Fig. 2 is the electrical schematic diagram of the utility model modem module 4.
Fig. 3 is the electrical schematic diagram of the utility model Network access control module 3.
Embodiment
With reference to Fig. 1, the utility model is by coding and decoding video module 1, voice gateways module 2, Network access control module 3, modulator-demodulator 4, the satellite communication terminal of the agreement Network Based that power supply 5 forms, it is characterized in that: also have mixer 6, splitter 7 forms, wherein splitter 7 enters to hold 1 pin to be connected with outside L frequency range intermediate frequency input port A, splitter 7 goes out end 2 pin and enters to hold 2 pin to be connected with modulator-demodulator 4, splitter 7 goes out end 3 pin and enters to hold 4 pin to be connected with modulator-demodulator 4, mixer 6 goes out end 1 pin and is connected with outside L frequency range medium frequency output end mouth B, mixer 6 enters end 2 pin and goes out to hold 3 pin to be connected with modulator-demodulator 4, mixer 6 enters end 3 pin and goes out to hold 5 pin to be connected with modulator-demodulator 4, modulator-demodulator 4 enters out end 1 pin and enters out end 3 pin with Network access control module 3 and be connected, Network access control module 3 enters out end 1 pin and enters out end 1 pin with coding and decoding video module 1 and be connected, Network access control module 3 enters out end 2 pin and enters out end 1 pin with voice gateways module 2 and be connected, coding and decoding video module 1 enters end 2 pin and is connected with external video input port D, coding and decoding video module 1 goes out end 3 pin and is connected with external video output port E, voice gateways module 2 enters out end 2 pin and enters out end C with external call and be connected power supply 5 outbound ports+V1, + V2, + V3 voltage end is connected with each parts respective electrical source.
Coding and decoding video module 1 is connected with outside video equipment and passes through analog-to-digital conversion, change network data after the processing such as Video coding into, voice gateways module 2 is connected with outside voice device and passes through speech coding, after processing, be converted to network data, the network data that Network access control module 3 receiver, video coding/decoding modules 1 and voice gateways module 2 are sent here is also accelerated, change synchrodata after the processing such as Route Selection into, modulator-demodulator 4 carries out error correction coding with the synchrodata that receives, changing intermediate-freuqncy signal after the modulation treatment into sends intermediate-freuqncy signal by mixer 6, same splitter 7 receives the outside intermediate-freuqncy signal of sending here and sends into modulator-demodulator 4 and carry out demodulation, change synchrodata after the processing such as channel decoding into, the synchrodata that Network access control module 3 receiving modems 4 are sent here is carried out after the processing such as Route Selection according to the different network addresss network data being sent into respectively coding and decoding video module 1 and voice gateways module 2, coding and decoding video module 1 is converted to vision signal with corresponding network data and gives outside video equipment, and the voice gateways module is converted to voice signal with corresponding network data and gives outside voice device.
The utility model modulator-demodulator 4 is by the professional modulator-demodulator 9 of base band webmaster modulator-demodulator 8, base band, webmaster ifd module 10, and professional ifd module 11 forms.
Wherein base band webmaster modulator-demodulator 8 enters out end 1 pin and enters out end 3 pin with Network access control module 3 and be connected, base band webmaster modem module 8 enters out end 2 pin and enters out end 1 pin with webmaster ifd module 10 and be connected, webmaster ifd module 10 enters end 2 pin and goes out to hold 2 pin to be connected with splitter 7, webmaster ifd module 10 goes out end 3 pin and enters to hold 2 pin to be connected with mixer 6, the professional modem module 9 of base band enters out end 1 pin and enters out end 3 pin with Network access control module 3 and be connected, the professional modem module 9 of base band enters out end 2 pin and enters out end 1 pin with professional ifd module 11 and be connected, professional ifd module 11 enters end 4 pin and is connected with splitter 7 outbound ports 3 pin, and professional intermediate frequency 11 goes out end 3 pin and enters to hold 3 pin to be connected with mixer 6.
The network management information that base band webmaster modulator-demodulator 8 reception Network access control modules 3 are sent here also carries out error correction coding, be converted to modulated intermediate frequency signal after the modulation treatment, webmaster ifd module 10 receives modulated intermediate frequency signal and carries out intermediate frequency filtering, the modulated intermediate frequency signal of output L frequency range is also by mixer 6 outputs after the upconversion process, webmaster ifd module 10 receives webmaster L frequency range intermediate-freuqncy signal and carries out down-conversion by splitter 7, after processing, filtering changes the intermediate-freuqncy signal that is fit to the analog to digital converter input into, base band webmaster modulator-demodulator 8 carries out down-conversion, digital filtering, demodulation, error correction decoding is converted to network management information after processing, send into Network access control module 3, the professional modulator-demodulator 9 of base band receives business information and carries out error correction coding, be converted to modulated intermediate frequency signal after the modulation treatment, professional ifd module 11 receives modulated intermediate frequency signal and carries out intermediate frequency filtering, the modulated intermediate frequency signal of output L frequency range is also by mixer 6 outputs after the upconversion process, professional ifd module 11 receives professional intermediate-freuqncy signal by splitter 7 to carry out changing the intermediate-freuqncy signal that is fit to the analog to digital converter input into after the down-converted, the professional modulator-demodulator 9 of base band carries out down-conversion, digital filtering, demodulation, be converted to business information behind the error correction decoding, send into Network access control module 3 and process.The professional modulator-demodulator 9 of base band webmaster modulator-demodulator 8 and base band adopts universal integrated circuit EP3C120F484I7 programming to realize, can easily realize program portable
This practical Network access control module 12 enters out end 1 pin and enters out end 1 pin with coding and decoding video module 1 and be connected, Network access control module 12 enters out end 2 pin and enters out end 1 pin with voice gateways module 2 and be connected, Network access control module 12 enters out end 3 pin and enters out end 1 pin with Switching Module 13 and be connected, and Switching Module 13 enters out end 3 pin and enters out end 1 pin with modulator-demodulator 4 and be connected.Switching Module 13 receives outside network signal, and the network signal of access accelerates in access module 12, Route Selection, be converted to synchrodata after processing synchronously, enters modulator-demodulator 4 and carries out modulation /demodulation and process.Switching Module 13 adopts application-specific integrated circuit (ASIC) 88E6083 to realize, access module 12 adopts
5 its effects of the utility model power supply provide parts direct-current working volts at different levels, and its output+V1 voltage is that+24 volts, output+V2 voltage are+12 volts, and+V3 voltage is+5 volts.
The concise and to the point operation principle of the utility model is as follows: the satellite communication terminal of agreement Network Based is a full-duplex communication device, comprises Business Processing, network insertion and modulator-demodulator three parts.Business Processing is converted to network signal to the miscellaneous service signal of input, and network insertion is converted to synchronizing signal to the network signal of access, and modulator-demodulator changes baseband signal into modulated intermediate frequency signal and sends.Its internal main will be comprised of coding and decoding video module 1, voice gateways module 2, Network access control module 3, modem module 4, power module 5, mixer 6, splitter 7.Each several part has all adopted modularity design technology, consists of to have the corresponding units of standalone feature.
In the satellite communication terminal course of work of agreement Network Based, external traffic signal at first enters corresponding Service Processing Module coding and decoding video module 1, voice gateways 2 are converted to network signal, the network signal of 3 pairs of inputs of Network access control module is converted to synchronizing signal or synchronizing signal is converted to network signal, modem module 4 is modulated to synchronizing signal intermediate-freuqncy signal or intermediate-freuqncy signal is converted to synchronizing signal, mixer 6 is with the intermediate-freuqncy signal output of modulation, and splitter 7 receives the intermediate-freuqncy signal of outside input and it is delivered to the modulator-demodulator demodulation.
Mounting structure of the present utility model is as follows: cabinet inside adopts modular construction, each module to adopt independently circuit to realize; Machine shape is of a size of 482.6 millimeters * 44 millimeters * 420 millimeters, fan is installed in the cabinet both sides is convenient to heat radiation, the cabinet front portion is equipped with intermediate frequency input port A socket, medium frequency output end mouth B socket, phone and enters outbound port C socket, external video output port D socket and external video input port E socket, assembly cost utility model.
Claims (3)
1. the satellite communication terminal of an agreement Network Based, comprise coding and decoding video module (1), voice gateways module (2), power supply (5), mixer (6) and splitter (7), it is characterized in that: also comprise Network access control module (3) and modulator-demodulator (4); Wherein splitter (7) enters to hold 1 pin to be connected with outside L frequency range intermediate frequency input port A, splitter (7) goes out end 2 pin and enters to hold 2 pin to be connected with modulator-demodulator (4), and splitter (7) goes out end 3 pin and modulator-demodulator (4) enters to hold 4 pin to be connected; Mixer (6) goes out end 1 pin and is connected with outside L frequency range medium frequency output end mouth B, and mixer (6) enters end 2 pin and goes out to hold 3 pin to be connected with modulator-demodulator (4), and mixer (6) enters end 3 pin and modulator-demodulator (4) goes out to hold 5 pin to be connected; Modulator-demodulator (4) enters out end 1 pin and enters out end 3 pin with Network access control module (3) and be connected; Network access control module (3) enters out end 1 pin and enters out end 1 pin with coding and decoding video module (1) and be connected, and Network access control module (3) enters out end 2 pin and enters out end 1 pin with voice gateways module (2) and be connected; Coding and decoding video module (1) enters end 2 pin and is connected with external video input port D, and coding and decoding video module (1) goes out end 3 pin and is connected with external video output port E; Voice gateways module (2) enters out end 2 pin and enters out end C with external call and be connected; Power supply (5) outbound port+V1 ,+V2 ,+the V3 voltage end is connected with each parts respective electrical source;
Coding and decoding video module (1) is carried out analog-to-digital conversion with the signal of the video equipment input of outside, Video coding changes network data into after processing, voice gateways module (2) carries out the signal of outside voice device input to be converted to network data after speech coding is processed, the network data that Network access control module (3) receiver, video coding/decoding module (1) and voice gateways module (2) are sent here is accelerated, Route Selection changes synchrodata into after processing, modulator-demodulator (4) carries out error correction coding with the synchrodata that receives, changing intermediate-freuqncy signal after the modulation treatment into sends intermediate-freuqncy signal by mixer (6), same splitter (7) receives the outside intermediate-freuqncy signal of sending here and sends into modulator-demodulator (4) and carry out demodulation, change synchrodata after the processing such as channel decoding into, the synchrodata that Network access control module (3) receiving modem (4) is sent here is carried out after the processing such as Route Selection according to the different network addresss network data being sent into respectively coding and decoding video module (1) and voice gateways module (2), coding and decoding video module (1) is converted to vision signal with corresponding network data and gives outside video equipment, and the voice gateways module is converted to voice signal with corresponding network data and gives outside voice device.
2. the satellite communication terminal of agreement Network Based according to claim 1, it is characterized in that: modulator-demodulator (4) is by base band webmaster modulator-demodulator (8), the professional modulator-demodulator (9) of base band, and webmaster ifd module (10) and professional ifd module (11) form;
Wherein base band webmaster modulator-demodulator (8) enters out end 1 pin and enters out end 3 pin with Network access control module (3) and be connected, and base band webmaster modem module (8) enters out end 2 pin and enters out end 1 pin with webmaster ifd module (10) and be connected; Webmaster ifd module (10) enters end 2 pin and goes out to hold 2 pin to be connected with splitter (7), and webmaster ifd module (10) goes out end 3 pin and mixer (6) enters to hold 2 pin to be connected; The professional modem module of base band (9) enters out end 1 pin and enters out end 3 pin with Network access control module (3) and be connected, and base band business modem module (9) enters out end 2 pin and enters out end 1 pin with professional ifd module (11) and be connected; Professional ifd module (11) enters end 4 pin and is connected with splitter (7) outbound port 3 pin, and professional intermediate frequency (11) goes out end 5 pin and enters to hold 3 pin to be connected with mixer (6);
The network management information that base band webmaster modulator-demodulator (8) reception Network access control module (3) is sent here also carries out error correction coding, be converted to modulated intermediate frequency signal after the modulation treatment, webmaster ifd module (10) receives modulated intermediate frequency signal and carries out intermediate frequency filtering, the L frequency range modulation signal of output higher frequency is also by mixer (6) output after the upconversion process, webmaster ifd module (10) receives webmaster L frequency band signals and carries out down-conversion by splitter (7), after processing, filtering changes the intermediate-freuqncy signal that is fit to the analog to digital converter input into, base band webmaster modulator-demodulator (8) carries out down-conversion, digital filtering, demodulation, error correction decoding is converted to network management information after processing, send into Network access control module (3), the business information that the professional modulator-demodulator of base band (9) reception Network access control module (3) is sent here is carried out error correction coding, be converted to modulated intermediate frequency signal after the modulation treatment, professional ifd module (11) receives modulated intermediate frequency signal and carries out intermediate frequency filtering, output L frequency range modulation signal is also by mixer (6) output after the upconversion process, professional ifd module (11) receives professional intermediate-freuqncy signal by splitter (7) to carry out changing the intermediate-freuqncy signal that is fit to the analog to digital converter input into after the down-converted, the professional modulator-demodulator of base band (9) carries out down-conversion, digital filtering, demodulation, be converted to business information behind the error correction decoding, send into Network access control module (3) and process.
3. the satellite communication terminal of agreement Network Based according to claim 1 and 2, be further characterized in that: Network access control module (3) is comprised of access module (12) and Switching Module (13);
Wherein access module (12) enters out end 1 pin and enters out end 1 pin with coding and decoding video module (1) and be connected, network access module (12) enters out end 2 pin and enters out end 1 pin with voice gateways (2) and be connected, access module (12) enters out end 3 pin and enters out end 1 pin with Switching Module (13) and be connected, and Switching Module (13) enters out end 3 pin and enters out end 1 pin with modulator-demodulator (4) and be connected;
Access module (12) receives outside network signal, and the network signal of access accelerates in Switching Module (13), Route Selection, be converted to synchrodata after processing synchronously, enters modulator-demodulator (4) and carries out modulation /demodulation and process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120575608 CN202652220U (en) | 2011-12-31 | 2011-12-31 | Satellite communication terminal based on network protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120575608 CN202652220U (en) | 2011-12-31 | 2011-12-31 | Satellite communication terminal based on network protocol |
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| Publication Number | Publication Date |
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| CN202652220U true CN202652220U (en) | 2013-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201120575608 Expired - Lifetime CN202652220U (en) | 2011-12-31 | 2011-12-31 | Satellite communication terminal based on network protocol |
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| CN (1) | CN202652220U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104168040A (en) * | 2014-07-18 | 2014-11-26 | 施浒立 | Frequency-band-sharing navigation accompanying multiplexing signals and intelligent despreading demodulation method and device |
| CN104579451A (en) * | 2013-10-25 | 2015-04-29 | 北京米波通信技术有限公司 | Iridium communication signal receiving device |
| CN111404596A (en) * | 2020-03-27 | 2020-07-10 | 南京宽超通信技术有限公司 | Multifunctional controller for satellite downlink tuner |
| CN111756430A (en) * | 2020-07-30 | 2020-10-09 | 康佳集团股份有限公司 | Internet communication method, system and terminal equipment based on low-orbit satellite |
-
2011
- 2011-12-31 CN CN 201120575608 patent/CN202652220U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579451A (en) * | 2013-10-25 | 2015-04-29 | 北京米波通信技术有限公司 | Iridium communication signal receiving device |
| CN104168040A (en) * | 2014-07-18 | 2014-11-26 | 施浒立 | Frequency-band-sharing navigation accompanying multiplexing signals and intelligent despreading demodulation method and device |
| CN111404596A (en) * | 2020-03-27 | 2020-07-10 | 南京宽超通信技术有限公司 | Multifunctional controller for satellite downlink tuner |
| CN111404596B (en) * | 2020-03-27 | 2022-01-28 | 南京宽超通信技术有限公司 | Satellite downlink high-frequency head controller |
| CN111756430A (en) * | 2020-07-30 | 2020-10-09 | 康佳集团股份有限公司 | Internet communication method, system and terminal equipment based on low-orbit satellite |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hebei Shenzhou Satellite Communications Co., Ltd. Assignor: No.54 Inst., China Electronic Sci. & Tech. Group Co. Contract record no.: 2013130000074 Denomination of utility model: Satellite communication terminal based on network protocol Granted publication date: 20130102 License type: Exclusive License Record date: 20130807 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Hebei Shenzhou Satellite Communications Co., Ltd. Assignor: No.54 Inst., China Electronic Sci. & Tech. Group Co. Contract record no.: 2013130000074 Date of cancellation: 20150807 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |