CN107566034A - A kind of monitoring system and monitoring method of SR4 optical modules transmission power - Google Patents
A kind of monitoring system and monitoring method of SR4 optical modules transmission power Download PDFInfo
- Publication number
- CN107566034A CN107566034A CN201710935322.9A CN201710935322A CN107566034A CN 107566034 A CN107566034 A CN 107566034A CN 201710935322 A CN201710935322 A CN 201710935322A CN 107566034 A CN107566034 A CN 107566034A
- Authority
- CN
- China
- Prior art keywords
- light beam
- monitoring
- reflection unit
- emitter
- reflected beams
- 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.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 56
- 230000003287 optical effect Effects 0.000 title claims abstract description 34
- 230000005540 biological transmission Effects 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000012806 monitoring device Methods 0.000 claims abstract description 30
- 230000011514 reflex Effects 0.000 claims description 4
- 238000007747 plating Methods 0.000 claims 1
- 230000007306 turnover Effects 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/071—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using a reflected signal, e.g. using optical time domain reflectometers [OTDR]
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to art of optical transceivers, more particularly to a kind of monitoring system and monitoring method of SR4 optical modules transmission power, including emitter, monitoring device light-dividing device, first reflection unit and master control set, the emitter sends inputs light beam to light-dividing device, inputs light beam is split by the light-dividing device, wherein inputs light beam is inputted to the first reflection unit all the way, and monitoring device is reflexed to by the first reflection unit, the monitoring device receives the reflected beams and detects the power parameter of the reflected beams, the power parameter of the reflected beams is sent to master control set, the master control set controls the transmission power of emitter according to the power parameter of the reflected beams.The present invention realizes light path beam splitting and turnover in SR4 optical modules, and by detecting the reflected beams control transmitting light beam, realizes the direct monitoring to transmission power, avoid as device aging or temperature change influence monitoring.
Description
Technical field
The present invention relates to art of optical transceivers, and in particular to a kind of monitoring system of SR4 optical modules transmission power and monitoring
Method.
Background technology
At present, different from concern of the people to spectrum efficiency and distance-bit rate product in long-range network, gulping down greatly
In the internal network of Tu Liang data centers, the optical fiber for connection server is only several meters to several kilometers, what people more paid close attention to
It is to realize in station to interconnect by high-speed short distance optic module.
And existing SR4 optical modules (4-channel parallel-optical-module for short reach
Optical links, 4 passage short distance optical modules), the scheme of generally use is that four road transceiving chips are integrated on pcb board, single
Channel rate 25Gbps, you can realize and be up to the total speed of 100Gbps.In such device, by the work electricity for detecting transmitter
Stream calculation goes out the transmission power of transmitter.But this kind of mode can with the aging of SR4 optical modules, and temperature change and
Failure.
Therefore, design one kind realizes light path beam splitting and turnover in SR4 optical modules, and passes through detection part the reflected beams
Power controls the monitoring system and monitoring method of transmitting light beam, the problem of being always those skilled in the art's primary study it
One.
The content of the invention
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of SR4 optical modules hair
The monitoring system of power is penetrated, light path beam splitting and turnover are realized in SR4 optical modules, and it is real by detection part the reflected beams power
The target of now control transmitting light beam power.
The technical problem to be solved in the present invention is, for the drawbacks described above of prior art, there is provided a kind of SR4 optical modules hair
The monitoring method of power is penetrated, light path beam splitting and turnover are realized in SR4 optical modules, and it is real by detection part the reflected beams power
The target of now control transmitting light beam power.
To solve the technical problem, the present invention provides a kind of monitoring system of SR4 optical modules transmission power, including transmitting dress
Put and monitoring device, the emitter send inputs light beam, the monitoring device receives the reflected beams, and the monitoring system also includes
Light-dividing device for beam splitting, the first reflection unit and master control set for reflection, the master control set connect transmitting dress respectively
Put and monitoring device；Wherein, the emitter sends inputs light beam to light-dividing device, light-dividing device and is divided inputs light beam
Beam, wherein inputs light beam is inputted to the first reflection unit all the way, and reflexes to monitoring device by the first reflection unit, the monitoring
Device receives the reflected beams and detects the power parameter of the reflected beams, and the power parameter of the reflected beams is sent to master control set,
The master control set controls the transmission power of emitter according to the power parameter of the reflected beams.
Wherein, preferred version is：The monitoring system also includes being used for the second reflection unit for reflecting and focusing on, described point
When inputs light beam is split by electro-optical device, wherein inputs light beam is inputted to the second reflection unit all the way in addition, and pass through second
The reflection and focusing of reflection unit form output beam and exported.
Wherein, preferred version is：The light-dividing device is film spectroscope.
Wherein, preferred version is：The monitoring system also includes collimation lens, and the emitter sends inputs light beam extremely
Collimation lens, inputs light beam is changed into collimated light beam by the collimation lens, and is inputted to light-dividing device.
Wherein, preferred version is：The monitoring system also includes condenser lens, and first reflection unit is by inputs light beam
Condenser lens is reflexed to, the condenser lens focuses on the reflected beams and inputted to monitoring device.
Wherein, preferred version is：First reflection unit is the triangular groove designed using total internal reflection.
Wherein, preferred version is：Second reflection unit is with triangular groove with concave surfaces.
The present invention also provides a kind of monitoring method of SR4 optical modules transmission power, and the monitoring method also includes following step
Suddenly：
Emitter sends inputs light beam；
Inputs light beam is split by light-dividing device；
Wherein inputs light beam reflexes to monitoring device by the first reflection unit all the way；
Monitoring device detects the power parameter of the reflected beams, and sends to master control set；
Master control set controls the transmission power of emitter according to the power parameter of the reflected beams.
Wherein, preferred version is that the monitoring method is further comprising the steps of：
Wherein inputs light beam is inputted to the second reflection unit all the way in addition；
Second reflection unit reflects and focusing forms output beam and exported.
Wherein, preferred version is：The light-dividing device is film spectroscope, is realized by plated film and is divided inputs light beam
Beam；Wherein, the parameter of light-dividing device plated film is controlled according to emitter general power and the ratio of required Output optical power.
The beneficial effects of the present invention are compared with prior art, the present invention launches work(by designing a kind of SR4 optical modules
The monitoring system and monitoring method of rate, light path beam splitting and turnover are realized in SR4 optical modules, and by detecting reflected light beam control
System transmitting light beam, realizes the direct monitoring to transmission power, avoids as device aging or temperature change influence monitoring；The prison
It is simple to control system architecture, for ease of maintenaince, and only needs setup parameter to be just capable of the transmission power of adjust automatically device, is easy to grasp
Make.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the schematic diagram of the supervising device of SR4 optical modules transmission power of the present invention；
Fig. 2 is the flow chart of the monitoring method of SR4 optical modules transmission power of the present invention；
Fig. 3 is the further flow chart of the monitoring method of SR4 optical modules transmission power of the present invention.
Embodiment
In conjunction with accompanying drawing, presently preferred embodiments of the present invention is elaborated.
As shown in figure 1, the present invention provides a kind of preferred embodiment of the supervising device of SR4 optical modules transmission power.
A kind of monitoring system of SR4 optical modules transmission power, including emitter 1 and monitoring device 2, the emitter 1
For sending inputs light beam, the monitoring device 2 is used to receive the reflected beams, and the monitoring system also includes the light splitting for beam splitting
Device 3, the first reflection unit 4 and master control set 5 for reflection, the master control set 5 connects emitter 1 respectively and monitoring fills
2 are put, and the emitter 1, monitoring device 2 and master control set 5 are welded on pcb board, realize above-mentioned function.
Specifically, with reference to figure 1, using the emitter 1 as basic point, the light-dividing device 3 is arranged on the upper of emitter 1
Side, first reflection unit 4 are positioned adjacent to the side of light-dividing device 3, and the monitoring device 2 is arranged on the first reflection unit 4
Lower section, and the emitter 1, monitoring device 2 and master control set 5 are welded on pcb board.
In system work process, the emitter 1 sends inputs light beam to light-dividing device 3, light-dividing device 3 and will inputted
Light beam is split, and with reference to figure 1, wherein inputs light beam is inputted to the right to the first reflection unit 4 all the way, and is filled by the first reflection
Total internal reflection to monitoring device 2, the monitoring device 2 reception the reflected beams for putting 4 simultaneously detect the power parameter of the reflected beams, will be anti-
The power parameter of irradiating light beam is sent to master control set 5, and the master control set 5 controls emitter according to the power parameter of the reflected beams
1 transmission power；Light path beam splitting and turnover are realized in SR4 optical modules, and by detecting the reflected beams control transmitting light beam,
The direct monitoring to transmission power is realized, is avoided as device aging or temperature change influence monitoring.
Wherein, the light-dividing device 3 first passes through the grooving on spectroscope, then carries out plated film, blend compounds water bonding spectroscope
And film is made, the light-dividing device 3, which is realized, is split inputs light beam, mutually both direction in 90 ° diverging.
Wherein, the power parameter of the reflected beams includes light intensity (luminous power), luminous flux.
Further, the monitoring system also includes being used for the second reflection unit 6 for reflecting and focusing on, wherein, this second
Reflection unit 6 is arranged on the top of light-dividing device 3；When inputs light beam is split by the light-dividing device 3, with reference to figure 1, wherein
Input to the second reflection unit 6, and is formed by the reflection and focusing of the second reflection unit 6 defeated inputs light beam upwards all the way in addition
Go out light beam, and be output to fiber end face, realize the follow-up function of SR4 optical modules.
In the present embodiment, the light-dividing device 3 is film spectroscope, and film is carried out previously according to the power ratio of needs
Design, it is definite value to process rear film parameter, is realized by plated film and is split inputs light beam；Wherein, according to emitter
The parameter of general power and the ratio of required Output optical power control light-dividing device plated film.
Wherein, the parameter of the plated film includes transmitance, reflectivity, polarization correlated, film material and thickness design etc..
Further, the monitoring system also includes collimation lens 7, and the emitter 1 sends multi beam inputs light beam extremely
Collimation lens 7, inputs light beam is changed into collimated light beam by the collimation lens 7 by collimating effect, and is inputted to light-dividing device 3.
Wherein, with reference to figure 1, the collimation lens 7 is arranged on the light path of the inputs light beam of the transmitting of emitter 1, that is, is arranged on transmitting
The top of device 1.
Further, the monitoring system also includes condenser lens 8, and first reflection unit 4 is anti-by inputs light beam
Condenser lens 8 is incident upon, the condenser lens 8 inputs to monitoring device 2 after the reflected beams are focused on by focussing force, is easy to supervise
Survey device 2 and receive the reflected beams.Wherein, it is arranged on the light path of the reflected beams with reference to figure 1, the condenser lens 8, that is, is arranged on
The top of monitoring device 2.
Wherein, first reflection unit 4 is the triangular groove designed using total internal reflection, realizes reflection function；Described
Two reflection units 6 are with triangular groove with concave surfaces, have not only realized reflection function but also have realized focusing function.
As shown in Figures 2 and 3, the present invention also provides a kind of preferable implementation of the monitoring method of SR4 optical modules transmission power
Example.
Specifically, and with reference to figure 2, a kind of monitoring method of SR4 optical modules transmission power, the monitoring method also include with
Lower step：
Step 10, emitter send inputs light beam；
Inputs light beam is split by step 20, light-dividing device；
Step 30, wherein inputs light beam reflexes to monitoring device by the first reflection unit all the way；
The power parameter of step 40, monitoring device detection the reflected beams, and send to master control set；
Step 50, master control set control the transmission power of emitter according to the power parameter of the reflected beams.
Further, it is and further comprising the steps of with reference to figure 3, the monitoring method：
Step 31, wherein inputs light beam is inputted to the second reflection unit all the way in addition；
Step 41, the reflection of the second reflection unit and focusing form output beam and exported.
In the present embodiment, the light-dividing device is film spectroscope, is realized by plated film and is split inputs light beam.
In summary, presently preferred embodiments of the present invention is these are only, is not intended to limit the scope of the present invention.
Any modification made within the spirit and principles of the invention, equivalent substitution, improve etc., it should be included in the guarantor of the present invention
In the range of shield.
Claims (10)
1. a kind of monitoring system of SR4 optical modules transmission power, including emitter and monitoring device, the emitter send defeated
Enter light beam, the monitoring device receives the reflected beams, it is characterised in that：The monitoring system also includes filling for the light splitting of beam splitting
Put, the first reflection unit and master control set for reflection, the master control set connects emitter and monitoring device respectively；Its
In,
The emitter sends inputs light beam to light-dividing device, light-dividing device and is split inputs light beam, wherein defeated all the way
Enter light beam to input to the first reflection unit, and monitoring device is reflexed to by the first reflection unit, the monitoring device receives reflection
Light beam and the power parameter for detecting the reflected beams, the power parameter of the reflected beams is sent to master control set, the master control set root
The transmission power of emitter is controlled according to the power parameter of the reflected beams.
2. monitoring system according to claim 1, it is characterised in that：The monitoring system also includes being used to reflect and focus on
The second reflection unit, when inputs light beam is split by the light-dividing device, wherein inputs light beam is inputted to all the way in addition
Two reflection units, and output beam is formed by the reflection and focusing of the second reflection unit and exported.
3. monitoring system according to claim 2, it is characterised in that：The light-dividing device is film spectroscope.
4. monitoring system according to claim 3, it is characterised in that：The monitoring system also includes collimation lens, described
Emitter sends inputs light beam to collimation lens, and inputs light beam is changed into collimated light beam by the collimation lens, and is inputted and extremely divided
Electro-optical device.
5. monitoring system according to claim 4, it is characterised in that：The monitoring system also includes condenser lens, described
Inputs light beam is reflexed to condenser lens by the first reflection unit, and the condenser lens focuses on the reflected beams and inputted to monitoring device.
6. monitoring system according to claim 1, it is characterised in that：First reflection unit is to be set using total internal reflection
The triangular groove of meter.
7. monitoring system according to claim 2, it is characterised in that：Second reflection unit is with triangle with concave surfaces
Groove.
8. a kind of monitoring method of SR4 optical modules transmission power, it is characterised in that the monitoring method is further comprising the steps of：
Emitter sends inputs light beam；
Inputs light beam is split by light-dividing device；
Wherein inputs light beam reflexes to monitoring device by the first reflection unit all the way；
Monitoring device detects the power parameter of the reflected beams, and sends to master control set；
Master control set controls the transmission power of emitter according to the power parameter of the reflected beams.
9. monitoring method according to claim 8, it is characterised in that the monitoring method is further comprising the steps of：
Wherein inputs light beam is inputted to the second reflection unit all the way in addition；
Second reflection unit reflects and focusing forms output beam and exported.
10. monitoring method according to claim 9, it is characterised in that：The light-dividing device is film spectroscope, passes through plating
Film is realized inputs light beam beam splitting；Wherein, according to emitter general power and the ratio of required Output optical power control light splitting dress
Put the parameter of plated film.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935322.9A CN107566034A (en) | 2017-10-10 | 2017-10-10 | A kind of monitoring system and monitoring method of SR4 optical modules transmission power |
| PCT/CN2017/109960 WO2019071686A1 (en) | 2017-10-10 | 2017-11-08 | Monitoring system and monitoring method for transmitting power of sr4 optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710935322.9A CN107566034A (en) | 2017-10-10 | 2017-10-10 | A kind of monitoring system and monitoring method of SR4 optical modules transmission power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107566034A true CN107566034A (en) | 2018-01-09 |
Family
ID=60985403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710935322.9A Pending CN107566034A (en) | 2017-10-10 | 2017-10-10 | A kind of monitoring system and monitoring method of SR4 optical modules transmission power |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107566034A (en) |
| WO (1) | WO2019071686A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184215A1 (en) * | 2018-03-30 | 2019-10-03 | 昂纳信息技术（深圳）有限公司 | Sr4 device for implementing monitoring of transmitting power, and monitoring method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761900A (en) * | 2003-03-14 | 2006-04-19 | 安捷伦科技有限公司 | Small form factor all-polymer optical device with integrated dual beam path based on total internal reflection optical turn |
| CN102062635A (en) * | 2010-12-02 | 2011-05-18 | 北京心润心激光医疗设备技术有限公司 | Laser power monitoring device |
| CN102597831A (en) * | 2009-09-30 | 2012-07-18 | 康宁公司 | Angle-cleaved optical fibers and methods of making and using same |
| CN207504867U (en) * | 2017-10-10 | 2018-06-15 | 昂纳信息技术（深圳）有限公司 | A kind of monitoring system of SR4 optical modules transmission power |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6081638A (en) * | 1998-07-20 | 2000-06-27 | Honeywell Inc. | Fiber optic header with integrated power monitor |
| US6895147B2 (en) * | 2003-06-26 | 2005-05-17 | Intel Corporation | Laser power monitoring tap |
| JP5025695B2 (en) * | 2009-08-07 | 2012-09-12 | 株式会社エンプラス | Optical module |
| US8503838B2 (en) * | 2010-09-15 | 2013-08-06 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Two-part optical coupling system having an air gap therein for reflecting light to provide optical feedback for monitoring optical output power levels in an optical transmitter (TX) |
| CN103885133B (en) * | 2012-12-21 | 2017-06-16 | 赛恩倍吉科技顾问（深圳）有限公司 | Optical communication apparatus |
| CN104577708B (en) * | 2014-12-12 | 2017-06-30 | 武汉华工正源光子技术有限公司 | The optical assembly for high-speed transfer is monitored with backlight |
-
2017
- 2017-10-10 CN CN201710935322.9A patent/CN107566034A/en active Pending
- 2017-11-08 WO PCT/CN2017/109960 patent/WO2019071686A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1761900A (en) * | 2003-03-14 | 2006-04-19 | 安捷伦科技有限公司 | Small form factor all-polymer optical device with integrated dual beam path based on total internal reflection optical turn |
| CN102597831A (en) * | 2009-09-30 | 2012-07-18 | 康宁公司 | Angle-cleaved optical fibers and methods of making and using same |
| CN102062635A (en) * | 2010-12-02 | 2011-05-18 | 北京心润心激光医疗设备技术有限公司 | Laser power monitoring device |
| CN207504867U (en) * | 2017-10-10 | 2018-06-15 | 昂纳信息技术（深圳）有限公司 | A kind of monitoring system of SR4 optical modules transmission power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184215A1 (en) * | 2018-03-30 | 2019-10-03 | 昂纳信息技术（深圳）有限公司 | Sr4 device for implementing monitoring of transmitting power, and monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019071686A1 (en) | 2019-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205656355U (en) | Multi -wavelength light send -receiver device | |
| CN102752051B (en) | Optical component of optical network unit with optical time domain reflection function | |
| CN104577708B (en) | The optical assembly for high-speed transfer is monitored with backlight | |
| CN104067105A (en) | Apparatus and method for measuring particle size distribution by light scattering | |
| CN108919433B (en) | Optical module | |
| CN2876807Y (en) | Single fiber bidirectional three port assembly | |
| CN207504867U (en) | A kind of monitoring system of SR4 optical modules transmission power | |
| US20230058940A1 (en) | Detection structure and method for feed-forward pump failure in l-band optical fiber amplifier | |
| CN106383354A (en) | Coaxial device without blind area | |
| CN203838377U (en) | Parallel transmission optical module coupling/light-splitting structure | |
| CN210775927U (en) | Optical module | |
| EP2981010A1 (en) | Optical module and optical network system | |
| US11025030B2 (en) | Optical module | |
| CN107566034A (en) | A kind of monitoring system and monitoring method of SR4 optical modules transmission power | |
| CN112698451A (en) | Optical module | |
| CN106371177B (en) | A kind of assemble method of optical transceiver module | |
| CN108549083A (en) | Separation optical system in laser radar | |
| CN107462987B (en) | Light path control system and optical module | |
| CN102937734B (en) | There is the optical network unit three-dimensional optical assembly of optical time domain signal reflex function | |
| CN108429598A (en) | A kind of device and light path system reducing multi-wavelength crosstalk | |
| CN208384176U (en) | A kind of optical transmission module and device with backlight monitoring | |
| CN107566033A (en) | A kind of monitoring system and monitoring method of SR4 optical modules transmission power | |
| CN207530827U (en) | A kind of monitoring system of SR4 optical modules transmission power | |
| CN208112631U (en) | A kind of SR4 device for realizing monitoring transmission power | |
| CN208209957U (en) | A kind of SR4 device for realizing monitoring transmission power |
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 | ||
| CB02 | Change of applicant information |
Address after: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Applicant after: Ona Technology (Shenzhen) Group Co.,Ltd. Address before: No.35 Cuijing Road, Pingshan District, Shenzhen City, Guangdong Province Applicant before: O-NET COMMUNICATIONS (SHENZHEN) Ltd. |
|
| CB02 | Change of applicant information |