CN116232417B - Multi-beam automatic switching method and system for mobile television satellite antenna - Google Patents
Multi-beam automatic switching method and system for mobile television satellite antenna Download PDFInfo
- Publication number
- CN116232417B CN116232417B CN202211563441.3A CN202211563441A CN116232417B CN 116232417 B CN116232417 B CN 116232417B CN 202211563441 A CN202211563441 A CN 202211563441A CN 116232417 B CN116232417 B CN 116232417B
- Authority
- CN
- China
- Prior art keywords
- antenna
- information
- target
- satellite
- automatic switching
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000004364 calculation method Methods 0.000 claims abstract description 14
- 238000013500 data storage Methods 0.000 claims description 12
- 230000010287 polarization Effects 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0802—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using antenna selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention relates to the technical field of antenna adjustment, in particular to a multi-beam automatic switching method and system of a mobile television satellite antenna, comprising the steps of acquiring beam information, preset rules and current GPS information to obtain acquired information; calculating a target beam according to a beam calculation rule based on the acquired information; and the antenna switches the target beam and locks the target satellite. The invention realizes the automatic switching of the wave beams through the steps, and solves the problem of complex operation of manually switching the wave beams.
Description
Technical Field
The invention relates to the technical field of antenna adjustment, in particular to a multi-beam automatic switching method and system for a mobile television satellite antenna.
Background
In marine operation, watching television programs is one of the main entertainment modes in long-term shipboard life for shipmen.
Conventional mobile television satellite antennas are built-in to support only a single satellite. The beam can only be switched manually, which is used in a certain geographical area. The operation is complex, and the method is quite unfriendly to personnel on the ship.
Disclosure of Invention
The invention aims to provide a multi-beam automatic switching method and system for a mobile television satellite antenna, which aim to solve the problems of manual beam switching and complex operation.
In order to achieve the above object, in a first aspect, the present invention provides a multi-beam automatic switching method for a mobile television satellite antenna, comprising the steps of:
s1, acquiring beam information, preset rules and current GPS information to obtain acquired information;
s2, calculating a target beam according to a beam calculation rule based on the acquired information;
and S3, the antenna switches the target beam and locks the target satellite.
The beam information comprises a coordinate description set of satellite longitude, downlink frequency, symbol rate, polarization mode, receiving local oscillation and beam coverage of the beam.
The preset rule comprises beam priority, priority weight, all beam EIRP values, EIRP value weight, received signal strength and received signal strength weight.
The beam information and the preset rule are stored in the USB flash disk.
Wherein the calculating the target beam according to the beam calculation rule based on the acquired information includes:
s21, describing the beam coverage by using the coordinate description set of the receiving local oscillator and the beam coverage to obtain a beam overlapping area;
s22, judging the beam overlapping area, if the beam overlapping area is a single beam, adopting the single beam as a target beam, and executing a step S3; if the beam overlapping area is multi-beam, executing step S23;
s23, determining the priority of each beam according to the preset rule, and creating a polling list based on the priority;
s24, generating a switching instruction based on the polling list;
and S25, the antenna polls the switching satellites in turn on the polling list based on the switching instruction to obtain a target satellite.
The method for obtaining the beam overlapping area includes the steps of:
s211, sequentially connecting points of the coordinate description set of the receiving local oscillator and the beam coverage area to obtain the beam coverage area;
s212 determines a beam overlap region from the beam coverage based on a ray method.
In a second aspect, the invention provides a multi-beam automatic switching system of a mobile television satellite antenna, which comprises an antenna tracking unit, a beam calculation unit, a GPS module and a data storage unit, wherein the antenna tracking unit, the GPS module and the data storage unit are respectively connected with the beam calculation unit;
the antenna tracking unit is used for receiving satellite signals and controlling an antenna to lock a target satellite;
the GPS module is used for providing current GPS information;
the data storage unit is used for storing beam information and preset rules;
the beam calculation unit calculates a target beam based on the current GPS information, the beam information and the preset rule.
According to the multi-beam automatic switching method of the mobile television satellite antenna, the acquired information is obtained by acquiring beam information, preset rules and current GPS information; calculating a target beam according to a beam calculation rule based on the acquired information; and the antenna switches the target beam and locks the target satellite. The invention realizes the automatic switching of the wave beams through the steps, and solves the problem of complex operation of manually switching the wave beams.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a multi-beam automatic switching method for a mobile television satellite antenna according to the present invention.
Fig. 2 is a schematic diagram of a multi-beam automatic switching method for a mobile television satellite antenna according to the present invention.
Fig. 3 is a schematic diagram of rays in a coverage area.
Fig. 4 is a schematic structural diagram of a multi-beam automatic switching system for a mobile tv satellite antenna according to the present invention.
A 1-antenna tracking unit, a 2-beam calculation unit, a 3-GPS module and a 4-data storage unit.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
Referring to fig. 1 to 3, in a first aspect, the present invention provides a multi-beam automatic switching method for a mobile tv satellite antenna, comprising the following steps:
s1, acquiring beam information, preset rules and current GPS information to obtain acquired information;
specifically, the beam information includes a coordinate description set of satellite longitude, downlink frequency, symbol rate, polarization mode, receiving local oscillator and beam coverage of the beam.
The preset rules include beam priority, priority weight, all beam EIRP (equivalent omni-directional radiation power) value, EIRP value weight, received signal strength, and received signal strength weight.
And the beam information and the preset rule are stored in the USB flash disk. Because the beam description information, the preset rules (parameters such as priority, weight coefficient and the like) and the like are all required to be set before leaving the factory, when the satellite beam is transmitted and changed, the user needs to update the data in time. All data are stored in the USB flash disk, so that the user can update the data conveniently. For a user, the USB flash disk is replaced.
The beam description information comprises satellite longitude, downlink frequency, symbol rate, receiving polarization, transmitting polarization, receiving local oscillation, transmitting local oscillation and satellite beam map.
And storing data of different satellite carriers by adopting a JSON format.
S2, calculating a target beam according to a beam calculation rule based on the acquired information;
the specific method is as follows:
s21, describing the beam coverage by using the coordinate description set of the receiving local oscillator and the beam coverage to obtain a beam overlapping area;
the specific method is as follows:
s211, sequentially connecting points of the coordinate description set of the receiving local oscillator and the beam coverage area to obtain the beam coverage area;
specifically, taking 87.5E as an example, 35 coordinate points are uniformly taken on the equal EIRP line, and the points are sequentially connected, so that a polygon can be obtained. The polygon can be regarded approximately as the coverage of the beam. As the number of fetch points increases, the higher the accuracy of the polygon.
S212 determines a beam overlap region from the beam coverage based on a ray method.
Specifically, whether a point is in a polygon is judged, a horizontal ray (any ray can be used, but the level is convenient to calculate) can be led out from the point, the number of intersection points of the ray and the multi-deformation is observed, if the number of intersection points is odd, the point is in the polygon, and if the number of intersection points is even, the point is outside the polygon.
As shown in fig. 4, the point is in the polygon, a horizontal ray is made from the point, the number of intersections with the polygon is 2\n+1 is odd, and similarly, if the point is even outside the polygon.
In addition to the 4 cases in fig. 4, there are several special cases:
1. the points coincide with the vertices of the polygon;
2. the points are on one side of the polygon.
S22, judging the beam overlapping area, if the beam overlapping area is a single beam, adopting the single beam as a target beam, and executing a step S3; if the beam overlapping area is multi-beam, executing step S23;
s23, determining the priority of each beam according to the preset rule, and creating a polling list based on the priority;
s24, generating a switching instruction based on the polling list;
and S25, the antenna polls the switching satellites in turn on the polling list based on the switching instruction to obtain a target satellite.
Specifically, a polling list is created from large to small according to the priority, and the switching satellites are polled in turn until the antenna can lock the satellites. The calculation formula is as follows: p=α x+β y+γ Z;
p, final beam priority value;
alpha: priority weights;
x: beam priority;
beta: EIRP value weights;
y: the beam EIRP value corresponding to the current GPS;
gamma: receiving signal strength weights;
z: the current received signal strength.
And S3, the antenna switches the target beam and locks the target satellite.
Specifically, satellite signals of all satellites are acquired, the antenna switches the target beam based on the satellite signals, and the target satellite is locked.
According to the multi-beam automatic switching method of the mobile television satellite antenna, the acquired information is obtained by acquiring beam information, preset rules and current GPS information; describing the beam coverage by using the coordinate description set of the receiving local oscillator and the beam coverage to obtain a beam overlapping area; judging the beam overlapping area, if the beam overlapping area is a single beam, adopting the single beam as a target beam, and switching the beam; if the beam overlapping area is multi-beam, executing the next step; determining the priority of each wave beam according to the preset rule, and creating a polling list based on the priority; generating a switching instruction based on the polling list; the antenna polls the polling list for switching satellites in sequence based on the switching instruction to obtain a target satellite; and the antenna switches the target beam and locks the target satellite. The invention realizes the automatic switching of the wave beams through the steps, and solves the problem of complex operation of manually switching the wave beams.
Referring to fig. 4, in a second aspect, the present invention provides a multi-beam automatic switching system of a mobile television satellite antenna, which includes an antenna tracking unit 1, a beam computing unit 2, a GPS module 3 and a data storage unit 4, wherein the antenna tracking unit 1, the GPS module 3 and the data storage unit 4 are respectively connected with the beam computing unit 2;
the antenna tracking unit 1 is used for receiving satellite signals and controlling an antenna to lock a target satellite;
the GPS module 3 is used for providing current GPS information;
the data storage unit 4 is used for storing beam information and preset rules;
the beam calculation unit 2 calculates a target beam based on the current GPS information, the beam information, and the preset rule.
Specifically, the data storage unit 4 is a usb disk, and the GPS module 3 provides current GPS information; the data storage unit 4 stores beam information and preset rules; when the beam switching is performed, the beam calculating unit 2 calculates a target beam based on the current GPS information, the beam information and the preset rule, and then the antenna tracking unit 1 receives satellite signals and controls an antenna to lock a target satellite based on the satellite signals, so that the automatic switching of the beam is realized.
The specific steps of the beam computing unit 2 for acquiring the target satellite are as follows: acquiring beam information, preset rules and current GPS information to obtain acquired information; describing the beam coverage by using the coordinate description set of the receiving local oscillator and the beam coverage to obtain a beam overlapping area; judging the beam overlapping area, if the beam overlapping area is a single beam, adopting the single beam as a target beam, and switching the beam; if the beam overlapping area is multi-beam, executing the next step; determining the priority of each wave beam according to the preset rule, and creating a polling list based on the priority; and generating a switching instruction based on the polling list, and then controlling an antenna to sequentially poll the switching satellites on the polling list based on the switching instruction through the antenna tracking unit 1 to obtain a target satellite.
The foregoing disclosure is only a preferred embodiment of the multi-beam automatic switching method for a mobile television satellite antenna, but it is not limited thereto, and those skilled in the art will appreciate that all or part of the procedures for implementing the above embodiments are equivalent and still fall within the scope of the invention.
Claims (4)
1. The multi-beam automatic switching method for the mobile television satellite antenna is characterized by comprising the following steps of:
s1, acquiring beam information, preset rules and current GPS information to obtain acquired information;
s2, calculating a target beam according to a beam calculation rule based on the acquired information;
s3, the antenna switches the target beam and locks a target satellite;
the beam information comprises a coordinate description set of satellite longitude, downlink frequency, symbol rate, polarization mode, receiving local oscillation and beam coverage of the beam;
the preset rule comprises beam priority, priority weight, all beam EIRP values, EIRP value weight, received signal strength and received signal strength weight;
the calculating the target beam according to the beam calculation rule based on the acquired information includes:
s21, describing the beam coverage by using the coordinate description set of the receiving local oscillator and the beam coverage to obtain a beam overlapping area;
s22, judging the beam overlapping area, if the beam overlapping area is a single beam, adopting the single beam as a target beam, and executing a step S3; if the beam overlapping area is multi-beam, executing step S23;
s23, determining the priority of each beam according to the preset rule, and creating a polling list based on the priority;
s24, generating a switching instruction based on the polling list;
and S25, the antenna polls the switching satellites in turn on the polling list based on the switching instruction to obtain a target satellite.
2. The method for multi-beam automatic switching of a mobile television satellite antenna according to claim 1,
and the beam information and the preset rule are stored in the USB flash disk.
3. The method for multi-beam automatic switching of a mobile television satellite antenna according to claim 2,
the method for describing the beam coverage by using the coordinate description set of the receiving local oscillator and the beam coverage to obtain a beam overlapping area comprises the following steps:
s211, sequentially connecting points of the coordinate description set of the receiving local oscillator and the beam coverage area to obtain the beam coverage area;
s212 determines a beam overlap region from the beam coverage based on a ray method.
4. The multi-beam automatic switching system for the mobile television satellite antenna is applied to the multi-beam automatic switching method for the mobile television satellite antenna according to claim 3, and is characterized in that,
the system comprises an antenna tracking unit, a beam computing unit, a GPS module and a data storage unit, wherein the antenna tracking unit, the GPS module and the data storage unit are respectively connected with the beam computing unit;
the antenna tracking unit is used for receiving satellite signals and controlling an antenna to lock a target satellite;
the GPS module is used for providing current GPS information;
the data storage unit is used for storing beam information and preset rules;
the beam calculation unit calculates a target beam based on the current GPS information, the beam information and the preset rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563441.3A CN116232417B (en) | 2022-12-07 | 2022-12-07 | Multi-beam automatic switching method and system for mobile television satellite antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211563441.3A CN116232417B (en) | 2022-12-07 | 2022-12-07 | Multi-beam automatic switching method and system for mobile television satellite antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116232417A CN116232417A (en) | 2023-06-06 |
| CN116232417B true CN116232417B (en) | 2024-03-29 |
Family
ID=86589930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211563441.3A Active CN116232417B (en) | 2022-12-07 | 2022-12-07 | Multi-beam automatic switching method and system for mobile television satellite antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116232417B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6421526B1 (en) * | 1996-02-06 | 2002-07-16 | Mitsubishi Denki Kabushiki Kaisha | Beam automatic selection switching method in multi-beam satellite communication system and apparatus for same |
| JP2006211404A (en) * | 2005-01-28 | 2006-08-10 | Mitsubishi Electric Corp | Terminal for satellite communication and management station |
| CN108718002A (en) * | 2018-06-01 | 2018-10-30 | 上海微小卫星工程中心 | A kind of satellite automatic follow-up system based on multi-beam phased array antenna |
| CN111756414A (en) * | 2020-07-22 | 2020-10-09 | 北京紫光展锐通信技术有限公司 | Beam switching method and related equipment |
| CN114944863A (en) * | 2022-04-21 | 2022-08-26 | 亚太卫星宽带通信（深圳）有限公司 | Wave beam switching algorithm |
-
2022
- 2022-12-07 CN CN202211563441.3A patent/CN116232417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6421526B1 (en) * | 1996-02-06 | 2002-07-16 | Mitsubishi Denki Kabushiki Kaisha | Beam automatic selection switching method in multi-beam satellite communication system and apparatus for same |
| JP2006211404A (en) * | 2005-01-28 | 2006-08-10 | Mitsubishi Electric Corp | Terminal for satellite communication and management station |
| CN108718002A (en) * | 2018-06-01 | 2018-10-30 | 上海微小卫星工程中心 | A kind of satellite automatic follow-up system based on multi-beam phased array antenna |
| CN111756414A (en) * | 2020-07-22 | 2020-10-09 | 北京紫光展锐通信技术有限公司 | Beam switching method and related equipment |
| CN114944863A (en) * | 2022-04-21 | 2022-08-26 | 亚太卫星宽带通信（深圳）有限公司 | Wave beam switching algorithm |
Non-Patent Citations (3)
| Title |
|---|
| Ka band multi-beam phased array antenna for communication satellite application;Jingtao Li等;《2016 IEEE Advanced Information Management, Communicates, Electronic and Automation Control Conference (IMCEC)》;20170302;全文 * |
| 低轨卫星通信系统的快速终端切换策略与仿真技术研究;李庆;《中国优秀硕士学位论文全文数据库 信息科技辑》;20090415(第4期);I136-429 * |
| 毫米波频率和基站密集度对LTE系统性能的影响研究;宋美荣;《中国优秀硕士学位论文全文数据库信息科技辑》;20151015(第10期);I136-144 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116232417A (en) | 2023-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10103803B2 (en) | Ground terminal and gateway beam pointing toward an unmanned aerial vehicle (UAV) for network access | |
| US6016120A (en) | Method and apparatus for automatically aiming an antenna to a distant location | |
| US6023242A (en) | Establishing communication with a satellite | |
| CN113438006B (en) | Satellite signal capturing method, device, system and storage medium | |
| CN106954223B (en) | Communication method of communication-in-motion end station system and communication-in-motion end station system | |
| US20210006327A1 (en) | Method and apparatus for establishing communications with a satellite | |
| US20170237456A1 (en) | Swallow exerciser | |
| WO2001006593A2 (en) | Method and apparatus for optimally orienting a satellite dish | |
| US20180270000A1 (en) | Adaptive augmented reality satellite acquisition | |
| US10212546B2 (en) | Collaborative positioning method and wireless terminal | |
| US20230006732A1 (en) | Satellite beam offset processing method, device and medium | |
| CN114144978B (en) | Satellite-based communication method, device and storage medium | |
| CN116232417B (en) | Multi-beam automatic switching method and system for mobile television satellite antenna | |
| CN111668606A (en) | Antenna configuration information processing method and device and electronic equipment | |
| CN113572515B (en) | Satellite selection method and device | |
| CN113131192B (en) | Satellite antenna, satellite searching and tracking method thereof and computer readable storage medium | |
| EP3851879A1 (en) | Adaptive single-element antenna apparatus and method of operating same | |
| US20240048206A1 (en) | Transceiver, wireless communication system and wireless communication method | |
| JP2022551503A (en) | Terminal network access method, device, electronic device and storage medium | |
| US10677878B2 (en) | Method for direction finding and direction finding antenna unit | |
| CN112422161B (en) | Unmanned ship wireless communication method, unmanned ship communication system and communication base station | |
| WO2016032742A1 (en) | Use of geolocation information to optimize receiving antenna alignment | |
| US20230189008A1 (en) | Shared spectrum coordination | |
| US11863289B2 (en) | Satellite communications system with non-geosynchronous orbits | |
| CN112216986B (en) | Beam tracking method, beam tracking device, computer equipment and readable storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20230726 Address after: No. 7, Building 7, Lane 216, Qingyi Road, High tech Zone, Ningbo City, Zhejiang Province 315000 Applicant after: DITAI (ZHEJIANG) COMMUNICATION TECHNOLOGY Co.,Ltd. Applicant after: JIEXIN (ZHEJIANG) COMMUNICATION TECHNOLOGY Co.,Ltd. Address before: No. 7, Building 7, Lane 216, Qingyi Road, High tech Zone, Ningbo City, Zhejiang Province 315000 Applicant before: DITAI (ZHEJIANG) COMMUNICATION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |