CN212809322U - Hand vein face multi-mode identification entrance guard attendance all-in-one - Google Patents
Hand vein face multi-mode identification entrance guard attendance all-in-one Download PDFInfo
- Publication number
- CN212809322U CN212809322U CN202020812740.6U CN202020812740U CN212809322U CN 212809322 U CN212809322 U CN 212809322U CN 202020812740 U CN202020812740 U CN 202020812740U CN 212809322 U CN212809322 U CN 212809322U
- Authority
- CN
- China
- Prior art keywords
- module
- main processor
- entrance guard
- information
- hand vein
- 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
- 210000003462 vein Anatomy 0.000 title claims abstract description 45
- 238000004891 communication Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Landscapes
- Lock And Its Accessories (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Collating Specific Patterns (AREA)
Abstract
The utility model relates to a biological identification equipment field discloses a hand arteries and veins people face multi-modal discernment entrance guard attendance all-in-one. The device comprises a core unit and an access control unit; the core unit comprises a main processor, a storage module, a display screen, a communication interface module, a power supply module and an input module A; the access control unit comprises a packet processor, an input module B and an output module; the touch screen module, the hand pulse acquisition module, the camera module, the NFC module and the Bluetooth module which are contained in the input module A are respectively connected with the main processor. The utility model discloses a hand vein face multi-mode recognition entrance guard attendance machine, which has rich input module forms and can carry out identity authentication of a user through a single authentication mode or a composite authentication mode; the defects of single function, low safety and the like of the existing door control device can be overcome. And the main processor has abundant communication interfaces, can be connected with an electric lock, a door controller and the like as required, and has high flexibility, simple maintenance and high safety.
Description
Technical Field
The utility model belongs to the technical field of biological identification, more specifically relate to a hand pulse people face multi-modal identification entrance guard attendance all-in-one.
Background
With the increase of safety requirements of people, identification devices are required to be applied in more and more occasions, and in practical application, biological identification is gradually popularized and applied due to the unique convenience and non-loss property of the biological identification. However, in many biometric technologies, fingerprint identification and face identification are widely applied, but the fingerprint identification has low cost, is easy to copy and counterfeit, and has low security; face recognition has high requirements on ambient light and consistency of user shapes, so that the face recognition has certain limitations.
The hand pulse recognition technology is a new biological recognition technology in recent years, and can be used for identity recognition and authentication. The hand vein recognition device obtains the distribution characteristics of the hand veins through near infrared rays, stores the hand vein distribution characteristic images as samples, further establishes a hand vein database, and completes identity recognition by comparing hand vein data of a user with sample data in the database. The hand vein recognition technology is gradually favored by research and development personnel in the field of biological recognition due to the fact that living body recognition is needed and the technology is not reproducible, non-contact acquisition and recognition are achieved, data accuracy is high, usability is high, and the technology is gradually applied to the fields of finance, police law, education, mechanical departments and the like.
However, as the market scale is continuously enlarged, the biometric identification in a single identification mode cannot meet the market demand, for example, the current hand vein identification device generally only supports hand vein and NFC card input information; simultaneously, also have certain limitation in attendance and entrance guard's function, if: the electromagnetic lock can not be directly driven, the door magnetism detection function is lacked, the door-out switch control function is lacked, and the like. Meanwhile, for some temporary users, if the hand pulse information is not input in advance, the door cannot be opened by authorization in other modes, and the method is very inconvenient.
Therefore, the advantages of multiple biological recognition technologies such as hand veins and human faces are utilized and simultaneously matched with the technologies such as NFC and Bluetooth, the advantages of a multi-mode recognition mode are fully exerted, so that the entrance guard attendance checking terminal has more comprehensive functions, higher safety and stronger usability, and is a development trend of new products at present.
SUMMERY OF THE UTILITY MODEL
1. The purpose of the utility model is to provide a novel water-saving device.
The utility model provides a current entrance guard's attendance equipment's identification mode single, use inconvenient, the not high not enough of security, provided a hand pulse discernment entrance guard's attendance equipment of high security, convenient to use and maintenance.
2. The utility model adopts the technical proposal.
The invention discloses a hand vein face multi-mode recognition entrance guard and attendance checking integrated machine which comprises a core unit and an entrance guard unit;
the core unit comprises a main processor and an input module A;
the input module A comprises one or more of a hand vein acquisition module and a camera module, is respectively connected with the main processor and respectively transmits the acquired input information of the hand vein characteristic information or/and the human face characteristic information to the main processor;
the main processor receives the user characteristic data signal transmitted by the input module A, compares the user identity result and transmits the user characteristic data signal to the output module connected with the sub-processor to realize the entrance guard action;
the entrance guard unit comprises a subprocessor, an input module B and an output module;
the subprocessors are connected with the input module B and the output module, and are used for receiving the information transmitted by the input module B and then sending the information to the main processor; simultaneously, the information in the main processor is sent to an output module B;
the input module B is connected with the subprocessors and comprises a gate magnetic detection circuit and a gate switch circuit; the subprocessors transmit the door magnetism change signals to the main processor to realize the opening and closing of the door;
the output module is connected with the subprocessors and comprises a relay module and a Wiegand module; the main processor is in data communication with other equipment through the relay module and the Wiegand module via the subprocessors, and controls the access control unit which is connected with the periphery.
Furthermore, the core unit also comprises a display screen module which is connected with the main processor, receives the user characteristic data signal transmitted by the input module A, compares the user identity result and returns the user characteristic data signal to the display screen module,
Furthermore, the hand vein acquisition module is connected with the main processor, acquires the palm vein distribution image of the user through near infrared light and transmits the image to the main processor.
Furthermore, the input module a further comprises a touch screen module connected to the main processor for transmitting the input information of the system information to the main processor respectively.
Furthermore, the core unit also comprises a storage module which is connected with the main processor and is used for storing the hand vein feature information, the face feature information, the card number information and the system information which are collected in advance; storing the registered palm vein information and face information of the user, and calling the sample in the memory to compare when the comparison is needed by the main processor.
Furthermore, the input module A also comprises a Bluetooth module which is connected with the main processor and identifies the identity through Bluetooth.
Furthermore, the input module A also comprises an NFC module which is connected with the main processor and respectively transmits the input information of the collected card number information to the main processor.
Furthermore, the core unit also comprises a communication interface module which is connected with the main processor and comprises a network communication module and other communication modules.
Furthermore, the input module B also comprises a tamper alarm circuit which is connected with the subprocessors.
Furthermore, the output module B is connected with the subprocessors, and also comprises a light module and a voice module; the main processor is in data communication with other equipment through the relay module and the Wiegand module via the sub processor, and controls the light module and the voice module.
3. The utility model discloses produced technological effect.
The utility model discloses a hand vein face multi-mode recognition entrance guard attendance machine, which has rich input module forms and can carry out identity authentication of a user through a single authentication mode or a composite authentication mode; the defects of single function, low safety and the like of the existing door control device can be overcome. And the main processor has abundant communication interfaces, can be connected with an electric lock, a door controller and the like as required, and has high flexibility, simple maintenance and high safety.
Drawings
Fig. 1 is a schematic structural diagram of the multi-mode hand vein face recognition entrance guard and attendance checking integrated machine in the embodiment of the utility model;
fig. 2 is a schematic structural view of an input module a in a core unit of the multi-modal hand vein face recognition entrance guard and attendance checking all-in-one machine in the embodiment of the present invention;
FIG. 3 is a circuit diagram of a main processing chip according to an embodiment of the present invention;
fig. 4 is a circuit diagram of a power module according to an embodiment of the present invention;
fig. 5 is a circuit diagram of the hand pulse acquisition module according to the embodiment of the present invention;
fig. 6 is a circuit diagram of a memory module according to an embodiment of the present invention;
fig. 7 is a circuit diagram of the LED lighting module according to the embodiment of the present invention;
fig. 8 is a circuit diagram of the network interface connection according to an embodiment of the present invention.
Detailed Description
Because the current hand pulse recognition access control device has a single recognition mode, the hand pulse recognition access control device has the advantages of simple function, low safety and low practicability. In view of this, the embodiment of the utility model provides a hand arteries and veins people face multi-modal discernment entrance guard attendance all-in-one is provided.
Refer to fig. 1, do the embodiment of the utility model provides an embodiment of a structural schematic diagram of hand arteries and veins people face multi-modal discernment entrance guard attendance all-in-one. The hand pulse recognition entrance guard attendance device comprises a core unit 10 and an entrance guard unit 11. In the core unit 10, the communication interface module 4, the power supply module 2, the storage module 5, the display screen module 6, and the input module a3 are respectively connected to the main processor 1.
The input module A3 comprises a touch screen module 31, a hand pulse acquisition module 32, a camera module 33, an NFC module 34 and a Bluetooth module 35.
The entrance guard unit 11 comprises an input module B7, a subprocessor 8 and an output module 9. The input module B7 and the output module 9 are respectively connected to the sub-processor 8.
The input module B7 comprises a door magnetism detection circuit 71, a door exit switch circuit 72 and an anti-disassembly alarm circuit 73.
The output module 9 comprises a relay module 91, a wiegand module 92, a light module 93 and a voice module 94.
As shown in fig. 1, a power module 2 supplies power to the whole apparatus; the main processor 1 is a core module of the device, receives the information collected by each input module A, analyzes and verifies the identity of a user, transmits the result to the display screen module 6 and the sub-processors 8, the sub-processors 8 feed back to each output module 9, and the result is displayed as screen information display, door lock opening/closing, light prompt and voice prompt.
Fig. 3 is a circuit diagram of a main processor chip, in which the core board controls other peripheral modules: the device comprises an input module, a display screen module, a hand pulse acquisition module and the like. Fig. 4 is a circuit diagram of a power module connection to a host processor. Fig. 5 is a circuit diagram of the connection of the hand pulse acquisition module connected to the main processor, and the acquisition module transmits a signal to the main processor after acquiring the user information.
And the storage module 5 is connected with the main processor and is used for storing the hand vein feature information, the face feature information, the card number information, the system information and the like which are acquired in advance. FIG. 6 is a circuit diagram of a memory module.
The input block B7 includes a door magnetism detection circuit 71, an exit switch circuit 72, and an anti-tamper alarm circuit 73. In practical use, the opening and closing of the door can cause the state of the door magnet to change, and the main processor obtains and stores the opening and closing state of the door according to the opening or closing message of the door magnet. When the door-out switch is pressed down, the electromagnetic lock is triggered to be powered off, and the door lock is opened.
The output of the tamper-evident alarm circuit 73 is connected to an I/O port of the sub-processor 8, which is used as a terminal input, the sub-processor being of the type STM 32. The other end is connected with an alarm switch. When the hand pulse recognition access control device is detached, the alarm switch bounces open, the anti-detachment alarm circuit outputs a trigger signal to an interface connected with the sub-processor 8, the signal is transmitted to the main processor 1, and after the signal is judged by the main processor 1, the signal reaches the output module 9 through the sub-processor 8 to send out alarm sound and light. Fig. 7 is a schematic circuit diagram of an LED light module.
The output module 9 includes a relay module 91 and a wiegand module 92. The main processor 1 performs data communication with other devices through the relay module 91 and the wiegand module 92 via the subprocessor 8, and can control the access control unit connected with the periphery. And peripheral devices such as a door controller and an electric lock connected in the output module 9 receive the door control unlocking instruction sent by the main processor 1 to realize unlocking.
The utility model can not only support the single biological recognition mode of hand pulse/face, but also support a plurality of compound biological recognition modes, which will be specifically explained below.
When the entrance guard attendance device uses a local hand pulse recognition mode, the hand pulse information of the user collected by the hand pulse collection module 32 is compared with the hand pulse information stored in the storage module 5 through the main processor 1, the comparison result is stored in the storage module 5, and meanwhile, the result signal is sent to the display screen module 6 and the subprocessor 8. The display screen module 6 displays the user information and the user identification result; the light module 93 and the voice module 94 respectively display light prompt and sound prompt of the hand pulse recognition result; the relay module 91 and the wiegand module 92 are connected to an external door lock device, and whether the door lock is opened or not can be further controlled via the sub-processor 8.
When the entrance guard attendance device uses a local face recognition mode, the user face information collected by the camera module 33 is compared with the face feature information stored in the storage module 5 through the main processor 1, the comparison result is stored in the storage module 5, and the result signal is sent to the display screen module 6 and the subprocessor 8. The display screen module 6 displays the user information and the user identification result; the light module 93 and the voice module 94 respectively display light prompt and sound prompt of the hand pulse recognition result; the relay module 91 and the wiegand module 92 are connected to an external door lock device, and whether the door lock is opened or not can be further controlled via the sub-processor 8.
When the entrance guard attendance device uses a local face and hand pulse recognition mode, the user face information acquired by the camera module 33 is compared with the face characteristic information stored in the storage module 5 through the main processor 1, the user identity information and the hand pulse information are captured in the storage module 5, at the moment, the user needs to acquire the hand pulse information through the hand pulse acquisition module 32, the hand pulse information is compared with the previously captured hand pulse information through the main processor 1, and meanwhile, the result signal is sent to the display screen module 6 and the subprocessor 8. The display screen module 6 displays the user information and the user identification result; the light module 93 and the voice module 94 respectively display light prompt and sound prompt of the hand pulse recognition result; the relay module 91 and the wiegand module 92 are connected to an external door lock device, and whether the door lock is opened or not can be further controlled via the sub-processor 8.
When the access control attendance device uses a local NFC + hand pulse recognition mode, the user card number information acquired by the NFC module 34 is compared with the card number information stored in the storage module 5 through the main processor 1, the user identity information and the card number information are captured in the storage module 5, at the moment, the user needs to acquire the hand pulse information through the hand pulse acquisition module 32, the hand pulse information is compared with the previously captured card number information through the main processor 1, and meanwhile, the result signal is sent to the display screen module 6 and the subprocessor 8. The display screen module 6 displays the user information and the user identification result; the light module 93 and the voice module 94 respectively display light prompt and sound prompt of the hand pulse recognition result; the relay module 91 and the wiegand module 92 are connected to an external door lock device, and whether the door lock is opened or not can be further controlled via the sub-processor 8.
The multi-mode identification access control device for the handpulse faces can be connected to a server through the network communication module 41 in the communication interface module 4 to perform networking cooperative work. Fig. 8 is a circuit diagram of a network interface connection. When the access control device uses a server comparison mode, the hand vein information/face information collected in the hand vein collection module 32/camera module 33 is compared with the stored data in the server connected with the communication interface module 4 through the main processor 1, the comparison result is stored in the server and fed back to the main processor 1, and meanwhile, the result signal is sent to the display screen module 6 and the subprocessor 8. The display screen module 6 displays the user information and the user identification result; the light module 93 and the voice module 94 respectively display light prompt and sound prompt of the hand pulse recognition result; the relay module 91 and the wiegand module 92 are connected to an external door lock device, and whether the door lock is opened or not can be further controlled via the sub-processor 8.
The hand pulse acquisition module 32 comprises a near-infrared light emitter, a camera and a precise circuit and is used for acquiring hand pulse information of a user; the palm of the user does not need to contact the pulse sensor, and the operation can be finished only by placing the palm 40-60 mm above the sensor; the collected hand vein information is transmitted to the main processor 1, and further a subsequent identification and comparison task is performed.
The utility model discloses, through increasing bluetooth module 35, NFC module 34, compensatied the single not enough of identification mode among the hand pulse discernment entrance guard's device, the user is under the condition that does not type hand pulse information in advance, can pass through the mode discernment identity of bluetooth or punching the card. The user can temporarily register and bind own mobile phone Bluetooth or card, when the mobile phone or card is close to the terminal device during use, the Bluetooth identification module 35 or the NFC module 34 reads information and transmits the data to the main processor 1, the main processor judges the legality of the user and sends out a command of whether the door lock is opened or not, and the display screen module 6, the light module 93 and the voice module 94 display identification results.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (10)
1. A hand vein face multi-mode recognition entrance guard attendance all-in-one machine is characterized by comprising a core unit and an entrance guard unit;
the core unit comprises a main processor and an input module A;
the input module A comprises one or more of a hand vein acquisition module and a camera module, is respectively connected with the main processor and respectively transmits the acquired input information of the hand vein characteristic information or/and the human face characteristic information to the main processor;
the main processor receives the user characteristic data signal transmitted by the input module A, compares the user identity result and transmits the user characteristic data signal to the output module connected with the sub-processor to realize the entrance guard action;
the entrance guard unit comprises a subprocessor, an input module B and an output module;
the subprocessors are connected with the input module B and the output module, and are used for receiving the information transmitted by the input module B and then sending the information to the main processor; simultaneously, the information in the main processor is sent to an output module B;
the input module B is connected with the subprocessors and comprises a gate magnetic detection circuit and a gate switch circuit; the subprocessors transmit the door magnetism change signals to the main processor to realize the opening and closing of the door;
the output module is connected with the subprocessors and comprises a relay module and a Wiegand module; the main processor is in data communication with other equipment through the relay module and the Wiegand module via the subprocessors, and controls the access control unit which is connected with the periphery.
2. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein the core unit further comprises a display screen module connected with the main processor, receiving the user characteristic data signal transmitted by the input module a, comparing the user identification result and returning to the display screen module.
3. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the hand vein acquisition module is connected with the main processor, acquires a palm vein distribution image of a user through near infrared light and transmits the image to the main processor.
4. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the input module A also comprises a touch screen module which is connected with the main processor and respectively transmits the input information of the system information to the main processor.
5. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the core unit also comprises a storage module connected with the main processor and used for storing pre-collected hand vein feature information, human face feature information, card number information and system information; storing the registered palm vein information and face information of the user, and calling the sample in the memory to compare when the comparison is needed by the main processor.
6. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the input module A also comprises a Bluetooth module which is connected with the main processor and identifies the identity through Bluetooth.
7. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the input module A also comprises an NFC module which is connected with the main processor and respectively transmits the input information of the collected card number information to the main processor.
8. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the core unit also comprises a communication interface module which is connected with the main processor.
9. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the input module B also comprises a tamper alarm circuit connected with the subprocessors.
10. The hand vein face multi-modal identification entrance guard and attendance machine as claimed in claim 1, wherein: the output module B is connected with the subprocessors, and also comprises a light module and a voice module; the main processor is in data communication with other equipment through the relay module and the Wiegand module via the sub processor, and controls the light module and the voice module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020812740.6U CN212809322U (en) | 2020-05-15 | 2020-05-15 | Hand vein face multi-mode identification entrance guard attendance all-in-one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020812740.6U CN212809322U (en) | 2020-05-15 | 2020-05-15 | Hand vein face multi-mode identification entrance guard attendance all-in-one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212809322U true CN212809322U (en) | 2021-03-26 |
Family
ID=75091742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020812740.6U Expired - Fee Related CN212809322U (en) | 2020-05-15 | 2020-05-15 | Hand vein face multi-mode identification entrance guard attendance all-in-one |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212809322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114821846A (en) * | 2022-03-24 | 2022-07-29 | 江苏慧家食品科技有限公司 | Attendance checking and attendance registering management device with multiple recognition functions |
-
2020
- 2020-05-15 CN CN202020812740.6U patent/CN212809322U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114821846A (en) * | 2022-03-24 | 2022-07-29 | 江苏慧家食品科技有限公司 | Attendance checking and attendance registering management device with multiple recognition functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107578519A (en) | A kind of intelligent access control system and intelligent entrance guard method for unlocking | |
| WO2021000814A1 (en) | Voice control method and related apparatus | |
| US20160364009A1 (en) | Gesture recognition for wireless audio/video recording and communication devices | |
| CN203276357U (en) | Attendance access all-in-one machine based on Internet of Things | |
| KR101939696B1 (en) | Multi-midal access control system Operating in user's unconciousness state | |
| CN107170093A (en) | Authentication gate control system | |
| CN201820280U (en) | Intelligent door access control device with function of face recognition | |
| CN102509369A (en) | Embedded intelligent entrance guard system | |
| CN201607748U (en) | Security certification device based on face identification | |
| CN103806789A (en) | Intelligent safety box with iris recognition function | |
| CN103791686A (en) | Intelligent refrigerator with iris recognition function | |
| CN212809322U (en) | Hand vein face multi-mode identification entrance guard attendance all-in-one | |
| CN110647732B (en) | Voice interaction method, system, medium and device based on biological recognition characteristics | |
| CN215954383U (en) | Access control system capable of selecting unlocking mode | |
| CN213904428U (en) | Access control machine and attendance access control system | |
| CN203947945U (en) | A kind of intelligent safe that possesses iris identifying function | |
| CN211851310U (en) | Intelligent door lock with multiple authentication modes | |
| CN109165618A (en) | A kind of guest system identified using vena metacarpea | |
| CN108986288A (en) | A kind of two-door access control system of the laboratory based on recognition of face and speech recognition | |
| CN202306668U (en) | Embedded intelligent door control system | |
| CN210888401U (en) | Intelligent door lock | |
| CN204288340U (en) | A kind of anti-theft intelligent door lock unlocked based on Kinect gesture | |
| KR20080089883A (en) | Method for controlling system in terminal using biometrics | |
| CN206849138U (en) | Recognition of face building residence intercom and intercom system | |
| CN212061280U (en) | Hand pulse recognition entrance guard device |
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: 20210326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |