CN208063181U - A kind of bis- section intercoms of UV of receivable aviation frequency range - Google Patents
A kind of bis- section intercoms of UV of receivable aviation frequency range Download PDFInfo
- Publication number
- CN208063181U CN208063181U CN201820679590.9U CN201820679590U CN208063181U CN 208063181 U CN208063181 U CN 208063181U CN 201820679590 U CN201820679590 U CN 201820679590U CN 208063181 U CN208063181 U CN 208063181U
- Authority
- CN
- China
- Prior art keywords
- frequency
- sections
- radio
- aviation
- reception
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013078 crystal Substances 0.000 claims abstract description 12
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 210000004209 hair Anatomy 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 abstract description 3
- 230000005236 sound signal Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Landscapes
- Circuits Of Receivers In General (AREA)
- Transmitters (AREA)
Abstract
The utility model discloses a kind of bis- section intercoms of UV of receivable aviation frequency range,Including power supply,Host peripheral and built-in circuit,Peripheral hardware includes antenna,LCD liquid crystal display screen,Volume knob,Channel knob and call button,Built-in circuit includes the bis- section transmitting/receiving circuits of UV and aviation UHF band reception circuit,Control circuit,Matrix press-key and channel selection circuit,Signal is amplified after antenna receives by radio frequency amplifier,Radio frequency chip BK4815 generates a local oscillation signal and is mixed in frequency mixer BF1212AS with the aviation frequency that antenna receives,Generate the intermediate-freuqncy signal of 21.7MHz,After crystal filter filters an audio signal is generated through receiving chip BK1088 demodulation,It is output to loud speaker after audio-frequency power amplifier amplifies,The utility model, which is beneficial in that, can solve existing line complexity,Component is more,The problem of having a single function.
Description
Technical field
The utility model belongs to wireless communication technology field, the bis- section intercommunications of UV of especially a kind of receivable aviation frequency range
Machine.
Background technology
Aviation wireless interspeaker, is called aircraft station, is used exclusively between ground and aircraft, pilot and pilot
Between carry out wireless communication contact, it is ensureing that it is indispensable in air traffic control that airflight safely, effectively carries out
Means of communication, receiver will have a whole set of dedicated receiving circuit, including RF amplifications in existing aviation frequency range intercom
Device, the first frequency mixer, VCO, frequency synthesis, the second frequency mixer, IF amplifier circuit, audio-frequency amplifier circuit, not only circuit is multiple
It is miscellaneous, component is more, and of high cost, have a single function, effect is not easy to carry out.
Invention content
The utility model provides a kind of bis- section intercoms of UV of receivable aviation frequency range, and the intercommunication function is existing using the machine
Some components are further added by several groups of signal switch and a filter to realize the reception of aviation frequency range, can solve existing
Complex circuit, component are more, the problems such as having a single function.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of bis- section intercoms of UV of receivable aviation frequency range, including power supply, host peripheral and built-in circuit, the host
Peripheral hardware includes antenna, LCD liquid crystal display screen, volume knob, channel knob and call button, and the built-in circuit includes the bis- sections of UV
Transmitting/receiving circuit and aviation UHF band reception circuit, control circuit, matrix press-key and channel selection circuit, the power supply include 1
A 5V DC power supplies and 5 3V DC power supplies, the bis- section transmitting/receiving circuits of the UV and aviation UHF band reception circuit include words
Cylinder, radio frequency chip BK4815, first switch, U sections of emission power amplifiers, V sections of emission power amplifiers, the first transmitting/reception
Change-over switch SW1, the second transmitting/reception change-over switch SW2, the first radio-frequency power amplifier, the second radio-frequency power amplifier,
Three radio-frequency power amplifiers, crystal filter, receive chip BK1088, level setting switches, audio work(at frequency mixer BF1212AS
Rate amplifier and loud speaker, the control circuit include microprocessor, memory circuit and battery low-voltage alarm circuit；
The microphone output end is connected with radio frequency chip BK4815 input terminals, the radio frequency chip BK4815 output ends and
One switch input terminal be connected, the first switch output end respectively with U sections of emission power amplifiers, V sections of emission power amplifiers
It is connected with frequency mixer BF1212AS input terminals, the U sections of emission power amplifier output end and the first transmitting/reception change-over switch
SW1 input terminals are connected, the V sections of emission power amplifier output end and the second transmitting/reception change-over switch SW2 input terminal phases
Even, the antenna receives the information of U sections, V sections and aviation frequency range, and the antenna output end is converted with the first transmitting/reception respectively
The input terminal of switch SW1 and the second transmitting/reception change-over switch SW2 are connected, and first transmitting/reception change-over switch SW1 is defeated
Outlet is connected with the first radio-frequency power amplifier input terminal, and the first radio-frequency power amplifier output end is inputted with second switch
End is connected, the output end of second transmitting/reception change-over switch SW2 respectively with the second radio-frequency power amplifier and third radio frequency
Power amplifier input is connected, and the second radio-frequency power amplifier output end is connected with frequency mixer BF1212AS input terminals,
The frequency mixer BF1212AS output ends are connected with crystal filter input terminal, the crystal filter output end and reception chip
BK1088 is connected, and the third radio-frequency power amplifier output end is connected with second switch input terminal, the second switch output
End is connected with radio frequency chip BK4815 input terminals, and the radio frequency chip BK4815 is also bi-directionally connected with microprocessor, micro- place
Reason device is connected with LCD liquid crystal display screen, memory circuit, matrix press-key and channel selection circuit respectively, the reception chip
The output end of BK1088 and radio frequency chip BK4815 are connected with level setting switches input terminal, the level setting switches output
End is connected with audio-frequency power amplifier input terminal, and the audio-frequency power amplifier output end is connected with loud speaker.
Signal is amplified after antenna receives by radio frequency amplifier, and radio frequency chip BK4815 generates a local oscillation signal and antenna
The aviation frequency received is mixed in frequency mixer BF1212AS, the intermediate-freuqncy signal of 21.7MHz is generated, through crystal filter
Enter after filtering and receive chip BK1088, generates an audio signal after received chip BK1088 demodulation, put in audio power
Big device is output to loud speaker after being amplified.
Further, the 5V DC power supplies are connected to its power supply, 5 3V DC power supplies difference with liquid crystal display
With microprocessor UR、UT、VR、VT, five terminals of AMV be connected to its power supply, the URFor the power supply of U sections of receptions, received at U sections
Period keeps output, the UTFor the power supply of U sections of transmittings, output, the V are kept during emitting at U sectionsRFor V sections of receptions
Power supply keeps output, the V in V sections of reception periodsTFor the power supply of V sections of transmittings, output is kept during emitting at V sections, it is described
AMV uses for aviation UHF band reception, and output is kept during aviation UHF band reception.
Further, the memory circuit includes an Electrically Erasable Programmable Read-Only Memory EEPROM, and the electricity can
Erasable programmable read-only memory EEPROM is connected with microprocessor, and storage content includes the system control program of microprocessor,
And the data such as channel and operating function.
Further, the matrix press-key and channel selection circuit include channel selector, PTT buttons, the choosing of the first channel
Switch, the second channel button and third channel button are selected, the signal from PTT buttons and channel selector is directly defeated
Entering to microprocessor, the channel selector is connected by first resistor and second resistance with microprocessor, the PTT buttons,
First channel button, the second channel button and third channel button are also connected with microprocessor respectively.
Further, the battery low-voltage alarm circuit includes 3rd resistor, the 4th resistance, the 5th resistance and capacitance, institute
One termination power of 3rd resistor is stated, the other end is connected with the 4th resistance and the 5th resistance one end respectively, and the 4th resistance is another
End ground connection, the 5th resistance other end are connected with microprocessor and capacitance one end respectively, the capacitance other end ground connection, battery
Low-voltage alarm circuit is by microprocessor monitors cell voltage, when less than warning voltage alarm, giving a warning sound.
The major function of microprocessor includes：According to the input signal of PTT buttons come the state of switching emission and reception, from
Memory circuit reads system control program and programming data, radio frequency chip BK4815 is sent data to, when aviation frequency range is opened
Qi Shi forbids U, V sections of transmittings and receives.
The utility model is by adopting the above scheme, have the advantages that：
The intercommunication function utilizes the existing component of the machine, is further added by several groups of signal switch and a filter comes in fact
The reception of existing aviation frequency range, can solve that existing line is complicated, component is more, the problems such as having a single function.
Description of the drawings
Fig. 1 is the bis- section intercom internal structure functional block diagrams of UV that can receive aviation frequency range；
Fig. 2 is matrix press-key and channel selection circuit functional block diagram；
Fig. 3 is battery low-voltage alarm circuit functional block diagram.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, any modification, equivalent replacement, improvement and so on should be included in the utility model
Within protection domain.
A kind of bis- section intercoms of UV of receivable aviation frequency range, including power supply, host peripheral and built-in circuit, the host
Peripheral hardware includes antenna, LCD liquid crystal display screen, volume knob, channel knob and call button, and the built-in circuit includes the bis- sections of UV
Transmitting/receiving circuit and aviation UHF band reception circuit, control circuit, matrix press-key and channel selection circuit, the power supply include 1
A 5V DC power supplies and 5 3V DC power supplies, as shown in Figure 1, the bis- section transmitting/receiving circuits of the UV and aviation UHF band reception electricity
Road includes microphone, radio frequency chip BK4815, first switch, U sections of emission power amplifiers, V sections of emission power amplifiers, the first hair
Penetrate/receive change-over switch SW1, the second transmitting/reception change-over switch SW2, the first radio-frequency power amplifier, the second radio-frequency power are put
Big device, third radio-frequency power amplifier, frequency mixer BF1212AS, crystal filter, reception chip BK1088, volume adjustment are opened
It closes, audio-frequency power amplifier and loud speaker, the control circuit include microprocessor, memory circuit and battery low pressure alarming electricity
Road；
As shown in Figure 1, the microphone output end is connected with radio frequency chip BK4815 input terminals, the radio frequency chip BK4815
Output end is connected with first switch input terminal, and the first switch output end emits with U sections of emission power amplifiers, V sections respectively
Power amplifier is connected with frequency mixer BF1212AS input terminals, and the U sections of emission power amplifier output end emits/connect with first
It receives change-over switch SW1 input terminals to be connected, the V sections of emission power amplifier output end and the second transmitting/reception change-over switch SW2
Input terminal is connected, and the antenna receives the information of U section, V sections and aviation frequency range, and the antenna output end emits with first respectively/
The input terminal for receiving change-over switch SW1 and the second transmitting/reception change-over switch SW2 is connected, and first transmitting/reception conversion is opened
It closes SW1 output ends with the first radio-frequency power amplifier input terminal to be connected, the first radio-frequency power amplifier output end and second
Switch input terminal is connected, the output end of second transmitting/reception change-over switch SW2 respectively with the second radio-frequency power amplifier and
Third radio-frequency power amplifier input terminal is connected, and the second radio-frequency power amplifier output end is inputted with frequency mixer BF1212AS
End be connected, the frequency mixer BF1212AS output ends are connected with crystal filter input terminal, the crystal filter output end and
Chip BK1088 is received to be connected, the third radio-frequency power amplifier output end is connected with second switch input terminal, and described second
Output switching terminal is connected with radio frequency chip BK4815 input terminals, and the radio frequency chip BK4815 is also bi-directionally connected with microprocessor,
The microprocessor is connected with LCD liquid crystal display screen, memory circuit, matrix press-key and channel selection circuit respectively, described to connect
The output end for receiving chip BK1088 and radio frequency chip BK4815 is connected with level setting switches input terminal, and the volume adjustment is opened
It closes output end with audio-frequency power amplifier input terminal to be connected, the audio-frequency power amplifier output end is connected with loud speaker.
Signal is amplified after antenna receives by radio frequency amplifier, and radio frequency chip BK4815 generates a local oscillation signal and antenna
The aviation frequency received is mixed in frequency mixer BF1212AS, the intermediate-freuqncy signal of 21.7MHz is generated, through crystal filter
Enter after filtering and receive chip BK1088, generates an audio signal after received chip BK1088 demodulation, put in audio power
Big device is output to loud speaker after being amplified.When aviation frequency is 118MHz, then radio frequency chip BK4815 exports one
The frequency of 139.7MHz is 21.7MHz after being mixed in frequency mixer BF1212AS；When aviation frequency is 135.99MHz, then
Radio frequency chip BK4815 exports the frequency of a 157.69MHz, is 21.7MHz after being mixed in frequency mixer BF1212AS.
The 5V DC power supplies and liquid crystal display are connected to its power supply, 5 3V DC power supplies respectively with microprocessor
Device UR、UT、VR、VT, five terminals of AMV be connected to its power supply, the URFor the power supply of U sections of receptions, kept in U sections of reception periods
Output, the UTFor the power supply of U sections of transmittings, output, the V are kept during emitting at U sectionsRFor the power supply of V sections of receptions, in V
Section reception period keeps output, the VTFor the power supply of V sections of transmittings, it is boat that output, the AMV are kept during emitting at V sections
Empty UHF band reception is used, and output is kept during aviation UHF band reception.
The memory circuit includes an Electrically Erasable Programmable Read-Only Memory EEPROM, and the electric erazable programmable is only
Read memory EEPROM be connected with microprocessor, storage content include microprocessor system control program and channel with
The data such as operating function.
As shown in Fig. 2, the matrix press-key and channel selection circuit include channel selector, PTT buttons, the choosing of the first channel
Switch, the second channel button and third channel button are selected, the signal from PTT buttons and channel selector is directly defeated
Entering to microprocessor, the channel selector is connected by first resistor and second resistance with microprocessor, the PTT buttons,
First channel button, the second channel button and third channel button are also connected with microprocessor respectively.
As shown in figure 3, the battery low-voltage alarm circuit includes 3rd resistor, the 4th resistance, the 5th resistance and capacitance, institute
One termination power of 3rd resistor is stated, the other end is connected with the 4th resistance and the 5th resistance one end respectively, and the 4th resistance is another
End ground connection, the 5th resistance other end are connected with microprocessor and capacitance one end respectively, the capacitance other end ground connection, battery
Low-voltage alarm circuit is by microprocessor monitors cell voltage, when less than warning voltage alarm, giving a warning sound.
The major function of microprocessor includes：According to the input signal of PTT buttons come the state of switching emission and reception, from
Memory circuit reads system control program and programming data, radio frequency chip BK4815 is sent data to, when aviation frequency range is opened
Qi Shi forbids U, V sections of transmittings and receives.
Claims (5)
1. a kind of bis- section intercoms of UV of receivable aviation frequency range, including power supply, host peripheral and built-in circuit, outside the host
If including antenna, LCD liquid crystal display screen, volume knob, channel knob and call button, the built-in circuit includes the bis- section hairs of UV
Penetrate/receiving circuit and aviation UHF band reception circuit, control circuit, matrix press-key and channel selection circuit, which is characterized in that described
Power supply includes 1 5V DC power supply and 5 3V DC power supplies, and the bis- section transmitting/receiving circuits of the UV and aviation UHF band reception are electric
Road includes microphone, radio frequency chip BK4815, first switch, U sections of emission power amplifiers, V sections of emission power amplifiers, the first hair
Penetrate/receive change-over switch SW1, the second transmitting/reception change-over switch SW2, the first radio-frequency power amplifier, the second radio-frequency power are put
Big device, third radio-frequency power amplifier, frequency mixer BF1212AS, crystal filter, reception chip BK1088, volume adjustment are opened
It closes, audio-frequency power amplifier and loud speaker, the control circuit include microprocessor, memory circuit and battery low pressure alarming electricity
Road；
The microphone output end is connected with radio frequency chip BK4815 input terminals, and the radio frequency chip BK4815 output ends are opened with first
Close input terminal be connected, the first switch output end respectively with U section emission power amplifiers, V sections of emission power amplifiers and mix
Frequency device BF1212AS input terminals are connected, the U sections of emission power amplifier output end and the first transmitting/reception change-over switch SW1
Input terminal is connected, and the V sections of emission power amplifier output end is connected with the second transmitting/reception change-over switch SW2 input terminals, institute
State the information that antenna receives U sections, V sections and aviation frequency range, the antenna output end respectively with the first transmitting/reception change-over switch
The input terminal of SW1 and the second transmitting/reception change-over switch SW2 are connected, first transmitting/reception change-over switch SW1 output ends
It is connected with the first radio-frequency power amplifier input terminal, the first radio-frequency power amplifier output end and second switch input terminal phase
Even, the output end of second transmitting/reception change-over switch SW2 respectively with the second radio-frequency power amplifier and third radio-frequency power
Amplifier in is connected, and the second radio-frequency power amplifier output end is connected with frequency mixer BF1212AS input terminals, described
Frequency mixer BF1212AS output ends are connected with crystal filter input terminal, the crystal filter output end and reception chip
BK1088 is connected, and the third radio-frequency power amplifier output end is connected with second switch input terminal, the second switch output
End is connected with radio frequency chip BK4815 input terminals, and the radio frequency chip BK4815 is also bi-directionally connected with microprocessor, micro- place
Reason device is connected with LCD liquid crystal display screen, memory circuit, matrix press-key and channel selection circuit respectively, the reception chip
The output end of BK1088 and radio frequency chip BK4815 are connected with level setting switches input terminal, the level setting switches output
End is connected with audio-frequency power amplifier input terminal, and the audio-frequency power amplifier output end is connected with loud speaker.
2. can receive the bis- section intercoms of UV of aviation frequency range according to claim 1, which is characterized in that the 5V DC power supplies
Be connected to its power supply with liquid crystal display, 5 3V DC power supplies respectively with microprocessor UR、UT、VR、VT, the end AMV five
Son is connected to its power supply, the URFor the power supply of U sections of receptions, output, the U are kept in U sections of reception periodsTIt is used for U sections of transmittings
Power supply, at U sections emit during keep output, the VRFor the power supply of V sections of receptions, output, institute are kept in V sections of reception periods
State VTFor the power supply of V sections of transmittings, output, the AMV is kept to be used for aviation UHF band reception during emitting at V sections, in aviation frequency
Section reception period keeps output.
3. can receive the bis- section intercoms of UV of aviation frequency range according to claim 1, which is characterized in that the memory circuit
Including Electrically Erasable Programmable Read-Only Memory an EEPROM, the Electrically Erasable Programmable Read-Only Memory EEPROM and microprocessor
Device is connected, and storage content includes the control program of microprocessor.
4. can receive the bis- section intercoms of UV of aviation frequency range according to claim 1, which is characterized in that the matrix press-key with
Channel selection circuit includes channel selector, PTT buttons, the first channel button, the second channel button and third frequency
Road selecting switch, the channel selector are connected by first resistor and second resistance with microprocessor, the PTT buttons,
One channel button, the second channel button and third channel button are also connected with microprocessor respectively.
5. can receive the bis- section intercoms of UV of aviation frequency range according to claim 1, which is characterized in that the battery low pressure report
Alert circuit includes 3rd resistor, the 4th resistance, the 5th resistance and capacitance, one termination power of the 3rd resistor, other end difference
Be connected with the 4th resistance and the 5th resistance one end, the 4th resistance other end ground connection, the 5th resistance other end respectively with
Microprocessor is connected with capacitance one end, the capacitance other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820679590.9U CN208063181U (en) | 2018-05-08 | 2018-05-08 | A kind of bis- section intercoms of UV of receivable aviation frequency range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820679590.9U CN208063181U (en) | 2018-05-08 | 2018-05-08 | A kind of bis- section intercoms of UV of receivable aviation frequency range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208063181U true CN208063181U (en) | 2018-11-06 |
Family
ID=63981911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820679590.9U Expired - Fee Related CN208063181U (en) | 2018-05-08 | 2018-05-08 | A kind of bis- section intercoms of UV of receivable aviation frequency range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208063181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116546661A (en) * | 2023-05-08 | 2023-08-04 | 广东美镭科技有限公司 | Frequency band intelligent control method and system for wireless microphone |
-
2018
- 2018-05-08 CN CN201820679590.9U patent/CN208063181U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116546661A (en) * | 2023-05-08 | 2023-08-04 | 广东美镭科技有限公司 | Frequency band intelligent control method and system for wireless microphone |
| CN116546661B (en) * | 2023-05-08 | 2023-10-20 | 广东美镭科技有限公司 | Frequency band intelligent control method and system for wireless microphone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2586333B2 (en) | Wireless communication device | |
| CN202998086U (en) | A multi-band double-reception band-crossing duplex relay vehicle station | |
| JP2002543658A (en) | System and process for shared function block CDMA / GSM communication transceiver | |
| CN100562143C (en) | A kind of integrated intercommunication module reaches the intercom system based on this module | |
| CN110504982A (en) | A kind of RF front-end circuit and mobile terminal | |
| CN208063181U (en) | A kind of bis- section intercoms of UV of receivable aviation frequency range | |
| CN107979388A (en) | A kind of wave filter group device of ultrashort wave broadband transceiver | |
| KR100692176B1 (en) | Wireless Microphone Transmitter-Receiver Device | |
| CN205754319U (en) | Data radio station | |
| CN201813364U (en) | Ship platform deck frequency modulation interphone circuit | |
| KR20080066788A (en) | Method and apparatus for configuration of modular devices | |
| CN208940248U (en) | A kind of multifrequency point automatic frequency-hopping wireless microphone public address set | |
| CN101917206A (en) | Integrated talkback chip and integrated talkback system with dual tone multiple frequency coding and decoding function | |
| CN201708793U (en) | Vehicular wireless frequency modulation interphone circuit | |
| CN207266004U (en) | A kind of antenna controling circuit and mobile terminal | |
| CN208063184U (en) | A kind of transmitter in wireless dispatching communication intercom | |
| US4897863A (en) | Cordless telephone antenna arrangement | |
| CN220985668U (en) | Broadband frequency modulation communication system | |
| CN106301445B (en) | A kind of aviation UHF band reception circuit | |
| KR101035730B1 (en) | Fm citizens band transceiver | |
| CN1251008A (en) | Mobile telephone with radio function | |
| KR20000066422A (en) | Vehicle remote controller using the mobile communication terminal | |
| CN205484811U (en) | External antenna's big dipper hand holder in compatible | |
| CN207664971U (en) | A kind of bluetooth radio | |
| CN221042852U (en) | Handheld life-saving radio station with double-mode double-frequency point voice communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181106 |