CN2741291Y - Security controlling receiver of satellite digital TV-set - Google Patents

Security controlling receiver of satellite digital TV-set Download PDF

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Publication number
CN2741291Y
CN2741291Y CNU2004201073571U CN200420107357U CN2741291Y CN 2741291 Y CN2741291 Y CN 2741291Y CN U2004201073571 U CNU2004201073571 U CN U2004201073571U CN 200420107357 U CN200420107357 U CN 200420107357U CN 2741291 Y CN2741291 Y CN 2741291Y
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China
Prior art keywords
pin
integrated package
hold
goes
gating
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CNU2004201073571U
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Chinese (zh)
Inventor
乔宏章
周旭
黄巍
李胜利
李斌
杨雪松
管吉兴
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CETC 54 Research Institute
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CETC 54 Research Institute
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Priority to CNU2004201073571U priority Critical patent/CN2741291Y/en
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Abstract

The utility model discloses a security controlling receiver of satellite digital TV-set, relating to the satellite digital TV-set receiver to the security controlling receiving of unauthorized program channels in the field of digital TV-set. The security controlling receiver of satellite digital TV-set comprises a radio-frequency head, a channel selecting chip, a decipher chip, a format converter, etc. The security controlling receiver of satellite digital TV-set judges whether the television programs are authorized to receive according to the television program station name or the station marking information, and then the security controlling receiving of the authorized programs of the satellite digital TV-set broadcast. In addition, the utility model also has the advantages of high controlling accuracy, reliable performance, low cost, simple circuit construction, small volume, convenient manufacturing and use, etc. The utility model is in particular suitable to the satellite digital TV-set receiver having suppressed unauthorized programs.

Description

The satellite digital TV security controlling receiver
Technical field
The utility model relates to a kind of satellite digital TV security control receiver in the satellite television broadcasting field, is particularly suitable as to have the satellite digital TV receiving system that unauthorized program suppresses.
Background technology
At present, satellite digital TV is quite universal abroad, domesticly realizes that just progressively satellite digital TV is live.Because the domsat digital TV direct is carried out later, also there is not relevant security control satellite receiver, but expansion along with the satellite digital TV live broadcast service, the channel Security Control Problem of Digital Television is more and more important, presses for a kind of security control satellite digital tv receiver of development to satisfy the needs of trade management.
Summary of the invention
The purpose of this utility model is to avoid the weak point in the above-mentioned background technology and provides a kind of and judge whether to authorizing the satellite digital TV security controlling receiver of received television program according to TV programme platform name or station symbol information, and the utility model also has the precise control height, dependable performance, economical and efficient, with low cost, circuit structure is simple, makes characteristics such as easy to use.
The purpose of this utility model is achieved in that it comprises tuner 1, channel selection chip 2, decoding chip 3, format converter 4, power supply 5, wherein tuner 1 inbound port is connected with antenna inbound port A, outbound port is connected with television terminal interface B after being connected in series channel selection chip 2, decoding chip 3, format converter 4 successively, and power supply 5 goes out the corresponding power end with each parts of end+V voltage end and is connected.
The utility model channel selection chip 2 is made up of buffer 6, mode of operation selector 7, password identifier 8, TV station's name identifier 9, pilot controller 10, filter 11, parameter storage 12, and wherein buffer 6 inbound ports 1 pin is connected with tuner 1 outbound port, outbound port 2 pin are connected with mode of operation selector 7 inbound ports 1 pin, outbound port 3 pin are connected with filter 11 inbound ports 2 pin; Mode of operation selector 7 outbound ports 2 pin are connected in series successively that password identifier 8, pilot controller 10 are connected with filter 11 inbound ports 3 pin after going into outbound port 1,2 pin, its outbound port 3 pin serial connection TV station name identifier 9 is connected with filter 11 inbound ports 1 pin after going into outbound port 1,2 pin; Parameter storage 12 comes in and goes out that port one pin and pilot controller 10 go into that outbound port 3 pin are connected, its outbound port 2 pin are connected with TV station name identifier 9 inbound ports 3 pin; Filter 11 outbound ports 4 pin are connected with decoding chip 3 inbound ports, and power supply 5 goes out the corresponding power end with each parts of end+V voltage end and is connected.
The utility model TV station name identifier 9 is by the first storage integrated package 13, the second storage integrated package 14, the 3rd storage integrated package 15, program code is extracted integrated package 16, numbering is integrated package 17 relatively, the first gating integrated package 18, the second gating integrated package 19, programm name extracts integrated package 20, title relatively integrated package 21 is formed, and wherein the first storage integrated package 13 goes into to hold 1 pin to be connected with mode of operation selector 7 outbound ports 3 pin, it goes out end 2 pin and stores integrated package 14 with second respectively, numbering relatively integrated package 17 is respectively gone into end 1 pin and is connect, go out end 3 pin serial connection program code extraction integrated package 16 and go into out end 1, comparing integrated package 17 with numbering behind 2 pin goes into to hold 2 pin to be connected; The second storage integrated package 14 goes out that end 2 pin and the 3rd storage integrated package 15 go into that end 1 pin is connected, it goes out to hold 3 pin to go into to hold 2 pin to be connected with the first gating integrated package 18; Numbering relatively integrated package 17 goes out to hold 3 pin to go into to hold 1 pin to be connected with the first gating integrated package 18, the first gating integrated package 18 goes out end 3 pin serial connection programm name and extracts integrated package 20 and go into out to go into end 1 pin with title comparison integrated package 21 behind end 1,2 pin and is connected, and the 3rd storage integrated package 15 goes out end 2 pin and goes into the second gating integrated package 19 that end 1 pin is connected, it goes out to hold 3 pin and filter 11 goes into to hold 1 pin to be connected; Title comparison integrated package 21 goes into that end 2 pin are connected with parameter storage 12 outbound ports 2 pin, it goes out to hold 3 pin respectively to go into to hold 2 pin with the second gating integrated package 19, filter 11 respectively and connect; The second gating integrated package 19 goes out end 3 pin and goes into to hold 3 pin to be connected with filter 11; The first storage integrated package 13, the second storage integrated package 14, the 3rd storage integrated package 15, program code extract integrated package 16, numbering relatively integrated package 17, the first gating integrated package 18, the second gating integrated package 19, programm name extract integrated package 20, title comparison integrated package 21 respectively go into end 4 pin go out end+V voltage end with power supply 5 and connect, respectively go into end 5 pin with hold and connect.
The utility model filter 11 by storage integrated package 22, gating integrated package 23, program compressed package extract integrated package 24, control/decoding integration block 25 is formed, wherein store integrated package 22 and go into that end 1 pin is connected with TV station name identifier 9 outbound ports 1 pin, it goes out to hold 2 pin and gating integrated package 23 goes into to hold 1 pin to be connected; The program compressed package extracts integrated package 24 and goes into that end 1 pin is connected with TV station name identifier 9 outbound ports 2 pin, it goes out to hold 2 pin and control/decoding integration block 25 goes into to hold 1 pin to be connected; Control/decoding integration block 25 respectively go into end 3,6,7 pin respectively with TV station name identifier 9 outbound ports 3 pin, pilot controller 10 outbound ports 2 pin, buffer 6 outbound ports, 3 pin and connect, it goes out end 2 pin and goes into to hold 2 pin to be connected with gating integrated package 23; Gating integrated package 23 goes out end 3 pin and is connected with decoding chip 3 inbound ports, storage integrated package 22, gating integrated package 23, program compressed package extract integrated package 24, control/decoding integration block 25 respectively go into end 4 pin go out end+V voltage end with power supply 5 and connect, respectively go into to hold 5 pin and hold and connect.
The utility model is compared background technology and is had following advantage:
1, the utility model adopts channel selection chip 2 to carry out unauthorized program inhibition, therefore to unauthorized program precise control height, dependable performance.
2, the utility model adopts general modular circuit to make, and is with low cost, and need not the cooperation of satellite television connecting station front end, economical and efficient.
3, the utility model adopts multidiameter delay channel and signal processing integrated design, and circuit structure is simple, has reduced weight of equipment, has reduced cost, and is easy for operation, has application value.
Description of drawings
Fig. 1 is the electric principle calcspar of the utility model most preferred embodiment.
Fig. 2 is the most preferred embodiment electrical schematic diagram of the utility model channel selection chip 2.
Fig. 3 is the most preferred embodiment electrical schematic diagram of the utility model TV station name identifier 9.
Fig. 4 is the most preferred embodiment electrical schematic diagram of the utility model filter 11.
Embodiment
Referring to figs. 1 through Fig. 4, the utility model comprises tuner 1, channel selection chip 2, decoding chip 3, format converter 4, power supply 5, wherein tuner 1 inbound port is connected with antenna inbound port A, outbound port is connected with television terminal interface B after being connected in series channel selection chip 2, decoding chip 3, format converter 4 successively, and power supply 5 goes out the corresponding power end with each parts of end+V voltage end and is connected.1 effect of the utility model tuner is that the satellite-signal that will receive carries out demodulation, error correction, forms the packed data stream TS stream signal that has video, audio signal, and embodiment adopts homemade Digital Television to receive tuner and makes.
The effect of the utility model channel selection chip 2 is to suppress unauthorized program, it is made up of buffer 6, mode of operation selector 7, password identifier 8, TV station's name identifier 9, pilot controller 10, filter 11, parameter storage 12, Fig. 2 is the electrical schematic diagram of the utility model channel selection chip 2, and embodiment presses Fig. 2 connection line.Wherein, through the digital television data stream TS of buffer 6 buffer-stored signal one tunnel be delivered to mode of operation selector 7, another road is delivered to filter 11.Buffer 6 embodiment adopt general buffer production of integrated circuits.
The data cached laggard line parameter programming Control of stream TS signal and the packet information processing and identification of 6 inputs of mode of operation selector 7 reception buffers, differentiating filter 11 is filterer's operation mode or the information processing identification signal of downloading mode of operation; Filterer's operation mode information processing identification signal is transported to TV station's name identifier 9, download mode of operation information processing identification signal is transported to password identifier 8.Mode of operation selector 7 embodiment adopt general programmable integrated circuit to make.
TV station's name identifier 9 receives filterer's operation mode information processing identification signal of mode of operation selectors 7 and carries out TV station's name or the identification of station symbol signal, differentiate output authorize program video, audio frequency, data, and content associated television data information signal transport to filter 11.The utility model TV station name identifier 9 by the first storage integrated package 13, the second storage integrated package 14, the 3rd storage integrated package 15, program code extract integrated package 16, numbering relatively integrated package 17, the first gating integrated package 18, the second gating integrated package 19, programm name extract integrated package 20, title relatively integrated package 21 form.Fig. 3 is the electrical schematic diagram of the utility model TV station name identifier 9, and embodiment presses Fig. 3 connection line.Mode of operation selector 7 is 13 storages of the digital television data stream signal TS input first storage integrated package with mode of operation signal identification signal, the first storage integrated package 13 is imported the second storage integrated package 14 respectively simultaneously with the TS signal of storage, program code is extracted integrated package 16, numbering is integrated package 17 relatively, transport to relatively integrated package 17 of numbering after the program code that program code extraction integrated package 16 extracts in the TS signals, the numbering relatively program code signal of TS signal and the input of 13 inputs of 17 pairs first storages of integrated package integrated package compares the TS signal of judging output control signal and 14 inputs of the second storage integrated package and imports the first gating integrated package 18 simultaneously and control its break-makes that open or close, thereby can extract the packet TS1 signal inputting programm name that comprises program code in the TS signal and extract integrated package 20, programm name extraction integrated package 20 extracts the programm name signal and inputs to relatively integrated package 21 of title from the TS1 signal, the initial data of 21 pairs of parameter storages of title comparison integrated package 12 input and programm name signal compare the TS signal of differentiating output program control signal and 15 inputs of the 3rd memory module and input to the second gating integrated package, 19, the second gating integrated packages 19 can extract the mandate program from the TS signal under the effect of control signal packet TS2 signal conveys is finished TV station's name to next stage identification simultaneously.Embodiment first to the 3rd storage integrated package 13,14,15 all adopts commercially available two-port RAM circuit production, first, second gating integrated package 18,19 all adopts commercially available NAND gate production of integrated circuits, program code extracts integrated package 16 and programm name extraction integrated package 20 all adopts commercially available programmable integrated circuit to make, and numbering compares integrated package 17 and title comparison integrated package 21 all adopts commercially available computing amplification circuit to make.
The utility model password identifier 8 receives the download mode of operation information processing identification signal of mode of operation selector 7, carries out upgrading of password identification output parameter or assist control working method signal and transports to pilot controller 10.Password identifier 8 embodiment adopt general coder and decoder ic to make.
Parameter upgrading or assist control working method signal that the utility model pilot controller 10 receives password identifier 8 carry out information processing, and the change program allows signal or work pick-off signal to transport to filter 11; Supplemental characteristic information stores after the initial parameter traffic flow information of pilot controller 10 or the change is stored and is called in parameter storage 12; Parameter storage 12 provides TV station's name or station symbol data processing with the initial parameter traffic flow information of storage or the supplemental characteristic information of same time input TV station name identifier 9 after the change.Pilot controller 10 embodiment adopt programmable integrated circuit to make.Parameter storage 12 embodiment adopt general buffer production of integrated circuits.
The utility model filter 11 allows according to the change program of the mandate program TV data information signal of the digital television data stream signal of buffer 6 input, 9 inputs of TV station's name identifier, pilot controller 10 inputs or the work pick-off signal carries out data message and filters out and do not allow the television programme data stream that receives, the break-make of control data stream, the digital television data stream signal is authorized in output.The utility model filter 11 is made up of storage integrated package 22, gating integrated package 23, program compressed package extraction integrated package 24, control/decoding integration block 25.Fig. 4 is the electrical schematic diagram of the utility model filter 11, and embodiment presses Fig. 4 connection line.Behind TV station's name identifier 9 output digital television data stream TS signal input storage integrated packages 25, again the TS signal is inputed to gating integrated package 23, authorize the packet TS2 signal of program to input to the program compressed package from 9 outputs of TV station's name identifier and extract integrated package 24, the program compressed package extracts integrated package 24 extraction compressed package numbering signals and inputs to control/decoding integration block 25, control/decoding integration block 25 is at the title comparison control signal of TV station's name identifier 9 inputs, the pressure ON/OFF signal of pilot controller 10, the TS signal of buffer 6 inputs, and the program compressed package extracts under the compressed package signal effect of integrated package 24 outputs, output control and decoded signal input to gating integrated package 23, the control that gating integrated package 23 opens or closes is selected, and the TS1 signal that control is authorized is normally exported by port B.Embodiment stores integrated package 22 and adopts commercially available dual port RAM production of integrated circuits, gating integrated package 23 adopts commercially available NAND gate circuit to make, the program compressed package extracts integrated package 24 and adopts programmable integrated circuit to make, and control/decoding integration block 25 adopts commercially available decoder ic to make.
The effect of the utility model decoding chip 3 is carried out demultiplexing, decoding to the TS stream signal of authorizing, be reduced into data image signal, output to format converter 4, the effect of format converter 4 is to convert data image signal to anolog TV signals, embodiment decoding chip 3 adopts commercially available general decoding production of integrated circuits, and format converter 4 adopts commercially available general D/A production of integrated circuits.Power supply 5 adopts external Dc low voltage power supply to make, and its output+V voltage is+5V that circuit direct-current working volts at different levels are provided.
The concise and to the point operation principle of the utility model is as follows:
Antenna receives the satellite digital TV signal, through tuner 1 demodulation, error correction, formation has the packed data stream signal TS of video, audio signal, be input to channel selection chip 2, channel selection chip 2 is mainly by analyzing, select TS stream signal, mainly judge whether to pass through thereby extract the program channel data bag that allows, other signals are filtered into allowing the TV programme of broadcast by the channel-identification symbolic coding; The TS stream signal of authorizing is reduced into data image signal through decoding chip 3 demultiplexings, decoding, and format converter 4 converts data image signal to anolog TV signals, outputs to television terminal, finishes reception.
The utility model channel selection chip 2 is mainly by analyzing, select the digital television data stream signal, therefrom extract the platform name coding of TV programme, and compare with platform name coding that permission in the TV station name identifier 9 receives, thereby judge whether this program belongs to the TV programme that allows reception, and control with this and to allow the television data stream of the TV programme that allow to receive pass through, filter out and do not allow the TV programme television data stream that receives, reach purpose the signal output control of unauthorized program.Its workflow such as Fig. 2, the digital television data stream of reception at first pass through the identification of buffer 6,7 pairs of data package informatins of mode of operation selector, differentiate the mode of operation of filter 11, are operated in filterer's operation mode or download mode of operation.
When being operated in filterer's operation mode, mode of operation selector 7 extracts Program Specific Information in the digital television data stream and business information by demultiplexing information.Can determine current television programme title according to the SDT Service Description Table in the business information stream.TV station's name identifier 9 extracts the Packet Identifier value of the Program Map Table correspondence of all programs by demultiplexing.Find the program map table position of respective program according to the program Packet Identifier, find Packet Identifier value video, audio frequency, data and relevant information that should program by the Program Map Table bag.As belonging to the TV programme that allows reception, 11 of filters allow digital television data stream normally to export, otherwise filter out respective program in the digital television data stream.
When working in downloading mode, password identifier 8 is judged its concrete working method according to password identification, is respectively work such as parameter upgrading, assist control; Parameter upgrade job mode can be changed program and allow list, and password assist control working method is for ending work, not output signal.Before the change and the change data by parameter storage 12 storage, it is standby to carry out data.
The utility model mounting structure is as follows:
It is in 300 * 300 millimeters the printed board that the utility model is installed in two block lengths * wide to all circuit elements devices among Fig. 1 to Fig. 4, and it is in 310 * 310 * 200 the cabinet that two printed boards are installed in length * wide * height, and assembles connection line by Fig. 1 to Fig. 4.The cable socket of external antenna port A and the socket of television terminal interface B are installed on the panel of cabinet, the input gang socket of power supply 5 is installed on the plate in the back.

Claims (4)

1, a kind of satellite digital TV security controlling receiver, it comprises tuner (1), decoding chip (3), format converter (4), power supply (5), it is characterized in that: it also comprises channel selection chip (2), wherein tuner (1) inbound port is connected with antenna inbound port (A), outbound port is connected with television terminal interface (B) after being connected in series channel selection chip (2), decoding chip (3), format converter (4) successively, and power supply (5) goes out the corresponding power end with each parts of end+V voltage end and is connected.
2, satellite digital TV security controlling receiver according to claim 1, it is characterized in that: channel selection chip (2) is made up of buffer (6), mode of operation selector (7), password identifier (8), TV station's name identifier (9), pilot controller (10), filter (11), parameter storage (12), and wherein buffer (6) inbound port 1 pin is connected with tuner (1) outbound port, outbound port 2 pin are connected with mode of operation selector (7) inbound port 1 pin, outbound port 3 pin are connected with filter (11) inbound port 2 pin; Mode of operation selector (7) outbound port 2 pin are connected in series successively that password identifier (8), pilot controller (10) are connected with filter (11) inbound port 3 pin after going into outbound port 1,2 pin, its outbound port 3 pin serial connection TV station's name identifiers (9) are connected with filter (11) inbound port 1 pin after going into outbound port 1,2 pin; Parameter storage (12) the port one pin of coming in and going out goes into pilot controller (10) that outbound port 3 pin are connected, its outbound port 2 pin are connected with TV station's name identifier (9) inbound port 3 pin; Filter (11) outbound port 4 pin are connected with decoding chip (3) inbound port, and power supply (5) goes out the corresponding power end with each parts of end+V voltage end and is connected.
3, satellite digital TV security controlling receiver according to claim 1 and 2, it is characterized in that: TV station's name identifier (9) is by the first storage integrated package (13), the second storage integrated package (14), the 3rd storage integrated package (15), program code is extracted integrated package (16), numbering is integrated package (17) relatively, the first gating integrated package (18), the second gating integrated package (19), programm name extracts integrated package (20), title relatively integrated package (21) is formed, and wherein the first storage integrated package (13) goes into to hold 1 pin to be connected with mode of operation selector (7) outbound port 3 pin, it goes out end 2 pin and stores integrated package (14) with second respectively, numbering relatively integrated package (17) is respectively gone into end 1 pin and is connect, go out end 3 pin serial connection program code extraction integrated packages (16) and go into out end 1, comparing integrated package (1 7) with numbering behind 2 pin goes into to hold 2 pin to be connected; The second storage integrated package (14) goes out end 2 pin and goes into the 3rd storage integrated package (15) that end 1 pin is connected, it goes out to hold 3 pin and the first gating integrated package (18) goes into to hold 2 pin to be connected; Numbering relatively integrated package (17) goes out to hold 3 pin and the first gating integrated package (18) to go into to hold 1 pin to be connected, the first gating integrated package (18) go out end 3 pin serial connection programm name extract integrated packages (20) go into out behind end 1,2 pin with title relatively integrated package (21) go into end 1 pin and be connected, the 3rd storage integrated package (15) goes out end 2 pin and goes into the second gating integrated package (19) that end 1 pin is connected, it goes out to hold 3 pin and filter (11) goes into to hold 1 pin to be connected; Relatively integrated package (21) goes into that end 2 pin are connected with parameter storage (12) outbound port 2 pin to title, it goes out to hold 3 pin respectively to go into to hold 2 pin with the second gating integrated package (19), filter (11) respectively and connect; The second gating integrated package (19) goes out end 3 pin and goes into to hold 3 pin to be connected with filter (11); The first storage integrated package (13), the second storage integrated package (14), the 3rd storage integrated package (15), program code extract integrated package (16), numbering relatively integrated package (17), the first gating integrated package (18), the second gating integrated package (19), programm name extract integrated package (20), title relatively integrated package (21) respectively go into end 4 pin go out end+V voltage end with power supply (5) and connect, respectively go into end 5 pin with hold and connect.
4, according to the described satellite digital TV security controlling receiver of claim 3, it is characterized in that: filter (11) by storage integrated package (22), gating integrated package (23), program compressed package extract integrated package (24), control/decoding integration block (25) is formed, wherein store integrated package (22) and go into that end 1 pin is connected with TV station's name identifier (9) outbound port 1 pin, it goes out to hold 2 pin and gating integrated package (23) goes into to hold 1 pin to be connected; The program compressed package extracts integrated package (24) and goes into that end 1 pin is connected with TV station's name identifier (9) outbound port 2 pin, it goes out to hold 2 pin and control/decoding integration block (25) goes into to hold 1 pin to be connected; Control/decoding integration block (25) respectively go into end 3,6,7 pin respectively with TV station's name identifier (9) outbound port 3 pin, pilot controller (10) outbound port 2 pin, buffer (6) outbound port 3 pin and connect, it goes out end 2 pin and goes into to hold 2 pin to be connected with gating integrated package (23); Gating integrated package (23) goes out end 3 pin and is connected with decoding chip (3) inbound port, storage integrated package (22), gating integrated package (23), program compressed package extract integrated package (24), control/decoding integration block (25) respectively go into end 4 pin go out end+V voltage end with power supply (5) and connect, respectively go into to hold 5 pin and hold and connect.
CNU2004201073571U 2004-11-25 2004-11-25 Security controlling receiver of satellite digital TV-set Expired - Lifetime CN2741291Y (en)

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CNU2004201073571U CN2741291Y (en) 2004-11-25 2004-11-25 Security controlling receiver of satellite digital TV-set

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101322333B (en) * 2006-02-17 2012-11-14 索尼株式会社 Radio-communication device and radio-communication method
CN103095409A (en) * 2013-01-06 2013-05-08 中国电子科技集团公司第十研究所 Decoding method for safety control commands of safety command receiver

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101322333B (en) * 2006-02-17 2012-11-14 索尼株式会社 Radio-communication device and radio-communication method
CN103095409A (en) * 2013-01-06 2013-05-08 中国电子科技集团公司第十研究所 Decoding method for safety control commands of safety command receiver
CN103095409B (en) * 2013-01-06 2016-02-24 中国电子科技集团公司第十研究所 The interpretation method of safety command receiver safety control command

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Expiration termination date: 20141125

Granted publication date: 20051116