CN108599848A - A kind of fiber transmission device and method for USB interface - Google Patents
A kind of fiber transmission device and method for USB interface Download PDFInfo
- Publication number
- CN108599848A CN108599848A CN201810238532.7A CN201810238532A CN108599848A CN 108599848 A CN108599848 A CN 108599848A CN 201810238532 A CN201810238532 A CN 201810238532A CN 108599848 A CN108599848 A CN 108599848A
- Authority
- CN
- China
- Prior art keywords
- usb
- speed
- transceivers
- interface
- ultrahigh
- 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.)
- Granted
Links
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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Information Transfer Systems (AREA)
Abstract
The invention discloses a kind of fiber transmission devices and its method for USB interface, device includes USB interface and optical fiber interface, further include USB high-speed transceivers, the USB high-speed transceivers are connected with USB interface, the USB high-speed transceivers are connected with USB converter, the USB converter is connected with USB ultrahigh speed transceivers, the USB ultrahigh speeds transceiver is connected with the first interface of high-speed analog switch, and second and third interface of the high-speed analog switch are connected with USB interface and optical fiber interface respectively.USB high speeds of the present invention or low full speed data can directly can share the transceiver channel of USB Ultrahigh speed datas by optical fiber cable extension and USB high speeds or low full speed data and USB Ultrahigh speed datas, realize the detection of the plug of USB device or usb host, the velocity measuring for realizing USB device or usb host, the global function for realizing USB interface extend.
Description
Technical field
The present invention relates to the optical fiber transmission field of usb data more particularly to a kind of fiber transmission devices for USB interface
And method.
Background technology
In the prior art two problems can be encountered to transmit the signal of 3.0 interfaces of USB with optical fiber：One, existing USB
3.0 have been compatible with the signal of USB 2.0, and USB 3.0 and 2.0 characteristics of signals of USB are different, therefore, are connect using USB 3.0
Mouthful signal transmission is carried out, needs each to transmit the data of USB 2.0 and USB3.0/3.1 specifications using a pair of optical fiber.This transmission
Mode will increase the quantity of optoelectronic transceiver device, increase system power dissipation and cost, and be not easy to the use of user.Two, USB
The physical signal of 2.0 data can not be transmitted directly by optical fiber, and the progress optical fiber transmission after format transformation is generally required.
CN104101965B discloses a kind of mixed electrical optical transceiver and its optical cable for USB3.0/3.1 interfaces, described
Mixed electrical optical transceiver includes：USB3.0/3.1 electricity transceivers, USB2.0 electricity transceiver and usb data mixer, USB3.0/
3.1 electric transceivers complete the forwarding of USB3.0 signals, and USB2.0 electricity transceivers complete the forwarding of USB2.0 signals, and usb data is mixed
On the one hand clutch mixes two kinds of usb signals, on the other hand mix the USB blended data solutions received, and respectively by two
Kind usb data is sent to two kinds of electric transceivers.However, there are following technical problems for technical solution disclosed in CN104101965B：
After one side USB2.0 signals are converted into USB3.0 signals, former USB3.0 transmission channels are shared with USB3.0 signals, are occupied original
USB3.0 bandwidth cannot achieve the full bandwidth for transmission of USB3.0；On the other hand, overall plan using device it is more, power consumption and at
This is higher.
Invention content
For problems of the prior art, the present invention provides a kind of USB high speeds or low full speed data can be direct
The transmitting-receiving of USB Ultrahigh speed datas can be shared by optical fiber cable extension and USB high speeds or low full speed data and USB Ultrahigh speed datas
Channel realizes the detection of the plug of USB device or usb host, realizes the velocity measuring of USB device or usb host, realizes
The extended fiber transmission device and method for USB interface of global function of USB interface.
The purpose of the present invention is achieved through the following technical solutions.
A kind of fiber transmission device for USB interface, including USB interface and optical fiber interface further include that USB high speeds are received and dispatched
Device, the USB high-speed transceivers are connected with USB interface, and the USB high-speed transceivers are connected with USB converter, described
USB converter is connected with USB ultrahigh speed transceivers, the first interface of the USB ultrahigh speeds transceiver and high-speed analog switch
It is connected, second and third interface of the high-speed analog switch are connected with USB interface and optical fiber interface respectively；
The USB high-speed transceivers are on the one hand for receiving and dispatching USB high speeds or low full speed data；The USB high-speed transceivers
On the other hand multiplexing is in the plug of detection USB device or usb host；
Mutual conversion of the USB converter for USB high speeds or low full speed data and the format of USB Ultrahigh speed datas；
On the one hand for receiving and dispatching USB Ultrahigh speed datas, the USB Ultrahigh speed datas include the USB ultrahigh speeds transceiver
The usb data that the USB Ultrahigh speed datas and optical fiber interface transmitted by the USB converter transmits, the USB ultrahigh speeds transceiver
On the other hand the speed for the USB device or usb host that multiplexing is inserted into detection；
The high-speed analog switch is for realizing the conducting to the signal link for two-way communication, the signal link packet
Include the first signal link between USB interface and USB ultrahigh speed transceivers, the second signal between USB interface and optical fiber interface
Third signal link between link and USB ultrahigh speeds transceiver and optical fiber interface.
Further, the conducting of signal link, specifically includes, when USB high-speed transceivers detect extraction and insertion, conducting
First signal link is inserted into the speed by USB ultrahigh speed transceiver detection USB devices in turn, and if only if speed if detecting
When being ultrahigh speed, second signal link is connected, when speed is high speed or low full speed, third signal link is connected.
Further, the conducting of signal link, specifically includes, when USB high-speed transceivers detect extraction and insertion, conducting
First signal link, if detecting insertion and then by USB ultrahigh speed transceiver detection speed, be then connected third signal link into
The communication negotiation of row usb host speed and USB device speed, and if only if the speed of usb host and USB device be ultrahigh speed
When, it disconnects third signal link and second signal link is connected, otherwise keep the conducting of third signal link.
Further, USB ultrahigh speeds transceiver reusable is in the monitoring of the usb data of second signal chain road.
Further, USB ultrahigh speeds transceiver is contained in USB3.0/3.1 transceivers, and the USB high-speed transceivers include
In USB2.0 transceivers or USB3.0/3.1 transceivers.
A kind of optical fiber transmission method for USB interface includes the steps that following repeatable execution：USB high-speed transceivers
The plug for detecting USB device or usb host, when detecting plug, USB interface and USB ultrahigh speeds is connected in high-speed analog switch
The first signal link between transceiver；The speed of USB ultrahigh speed transceiver detection USB devices or usb host；And if only if speed
When degree is ultrahigh speed, the second signal link between USB interface and optical fiber interface is connected in high-speed analog switch, realizes usb data
Ultrahigh speed communication；When speed is high speed or low full speed, third signal link, the transmitting-receiving of USB high-speed transceivers is connected
Signal, and USB high speeds or low full speed data are subjected to stylistic mutual conversion with USB Ultrahigh speed datas by USB converter, and
It is received and dispatched afterwards by USB ultrahigh speed transceivers to realize signal communication；Under other situations, high-speed analog switch is without operation.
Compared with the prior art, the advantage of the invention is that：The present invention solves USB high speeds or low full speed in the prior art
Data directly can not can not share USB superelevation by optical fiber cable extension and USB high speeds or low full speed data and USB Ultrahigh speed datas
The problem of transceiver channel of fast data, the present invention have been multiplexed USB high-speed transceivers, realize the plug of USB device or usb host
Detection, be multiplexed USB ultrahigh speed transceivers, realized the velocity measuring of USB device or usb host, by USB high speed or
The mutual conversion of low full speed data and the physical signal of USB Ultrahigh speed datas, the global function for realizing USB interface extend.
Description of the drawings
Fig. 1 is a kind of structure chart of the fiber transmission device for USB interface；
Fig. 2 is a kind of flow chart of the optical fiber transmission method for USB interface.
Specific implementation mode
With reference to the accompanying drawings of the specification and specific embodiment, the present invention is described in detail.
Fig. 1 is a kind of structure chart of the fiber transmission device for USB interface, and device includes USB interface and optical fiber interface,
Further include USB high-speed transceivers (HS, HighSpeed), the USB high-speed transceivers are connected with USB interface, the USB high
Fast transceiver is connected with USB converter, and the USB converter is connected with USB ultrahigh speed transceivers, the USB ultrahigh speeds
Transceiver is connected with the first interface of high-speed analog switch, second and third interface of the high-speed analog switch respectively with
USB interface is connected with optical fiber interface；The USB high-speed transceivers are on the one hand for receiving and dispatching USB high speeds or low full speed data；Separately
On the one hand multiplexing is in the plug of detection USB device or usb host；USB converter, for USB high speeds or low full speed data and USB
The mutual conversion of the format of Ultrahigh speed data；USB ultrahigh speeds transceiver (SS, SuperSpeed) is on the one hand used to receive and dispatch USB super
High-speed data, the data include the USB numbers that the USB Ultrahigh speed datas transmitted by the USB converter and optical fiber interface transmit
According to the speed for the USB device or usb host that on the other hand multiplexing is inserted into detection；Above-mentioned USB high-speed transceivers, USB converter
With USB ultrahigh speed transceivers, the mutual conversion of high speed or the physical signal of low full speed data and Ultrahigh speed data is realized jointly,
The physical signal includes amplitude and frequency.High-speed analog switch, for realizing leading to the signal link for two-way communication
Logical, the signal link includes the first signal link between USB interface and USB ultrahigh speed transceivers, and USB interface connects with optical fiber
The third signal link between second signal link and USB ultrahigh speeds transceiver and optical fiber interface between mouthful.
The conducting of signal link, specifically includes, when USB high-speed transceivers detect the extraction of USB device or usb host with
It is inserted into, the first signal link of conducting is that switch 1 is connected, if detecting insertion and then by USB ultrahigh speed transceiver detection USB devices
Or the speed of usb host, when speed is ultrahigh speed, conducting second signal link is that switch 2 is connected, and if only if speed
When degree is high speed or low full speed, conducting third signal link is that switch 3 is connected.The conducting of signal link can also be that third is connected
Signal link carries out the communication negotiation of usb host speed and USB device speed, and if only if the speed of usb host and USB device
It when being ultrahigh speed, disconnects third signal link and second signal link is connected, otherwise keep the conducting of third signal link.USB is set
Standby or usb host speed is detected according to USB ultrahigh speed protocol specification methods.USB ultrahigh speeds transceiver can also answer
One of the implementation method of the monitoring of usb data for second signal chain road, above-mentioned monitor function is, when second signal link
When conducting, the first signal link or third signal link is connected.USB interface and optical fiber interface can be separately connected USB transceiver and
Optical fiber receiver-transmitter module, optical fiber receiver-transmitter module include fiber optical transceiver.In addition, USB ultrahigh speed transceivers are contained in USB3.0/
3.1 transceivers, the USB high-speed transceivers are contained in USB2.0 transceivers or USB3.0/3.1 transceivers.
A kind of optical fiber transmission method for USB interface, specific repeatable the step of executing, are as follows：USB high-speed transceivers
The plug for detecting USB device or usb host, when detecting plug, USB interface and USB ultrahigh speeds is connected in high-speed analog switch
The first signal link between transceiver；The speed of USB ultrahigh speed transceiver detection USB devices or usb host；And if only if speed
When degree is ultrahigh speed, the second signal link between USB interface and optical fiber interface is connected in high-speed analog switch, realizes usb data
Ultrahigh speed communication；When speed is high speed or low full speed, third signal link, the transmitting-receiving of USB high-speed transceivers is connected
Signal, and USB high speeds or low full speed data are subjected to stylistic mutual conversion with USB Ultrahigh speed datas by USB converter, and
It is received and dispatched afterwards by USB ultrahigh speed transceivers to realize signal communication；Under other situations, high-speed analog switch is without operation.Fig. 2 is
A kind of flow chart of optical fiber transmission method for USB interface is used for the optical fiber transmission side of USB interface in conjunction with the situation of Fig. 2
Also first the first signal link between USB interface and USB ultrahigh speed transceivers can be connected, then again in high-speed analog switch by method
It judges whether there is USB device or usb host is inserted into, if being not inserted into, continue waiting for.If there is equipment insertion, execute with it is upper
The step of stating velocity measuring, the optical fiber transmission communication of the identical USB device of method or usb host, then judges whether there is extraction,
If there is extraction, abovementioned steps are repeated.In addition, being directed to USB device and the unmatched feelings of usb host speed that may be present
The communication that third signal link carries out usb host speed and USB device speed can also be first connected after detecting insertion in shape
Negotiate, when the speed of usb host and USB device is ultrahigh speed, disconnects third signal link and second signal is connected
Otherwise link keeps the conducting of third signal link.It should be pointed out that USB ultrahigh speed transceivers are contained in USB3.0/3.1 receipts
Device is sent out, the USB high-speed transceivers are contained in USB2.0 transceivers or USB3.0/3.1 transceivers.
The technical means disclosed in the embodiments of the present invention is not limited only to the technological means disclosed in the above embodiment, further includes
By the above technical characteristic arbitrarily the formed technical solution of combination.
Claims (9)
1. a kind of fiber transmission device for USB interface, including USB interface and optical fiber interface, it is characterised in that further include USB
High-speed transceiver, the USB high-speed transceivers are connected with USB interface, and the USB high-speed transceivers are connected with USB converter
It connecing, the USB converter is connected with USB ultrahigh speed transceivers, and the of the USB ultrahigh speeds transceiver and high-speed analog switch
One interface is connected, and second and third interface of the high-speed analog switch are connected with USB interface and optical fiber interface respectively；
The USB high-speed transceivers are on the one hand for receiving and dispatching USB high speeds or low full speed data；The USB high-speed transceivers are another
Aspect multiplexing is in the plug of detection USB device or usb host；
Mutual conversion of the USB converter for USB high speeds or low full speed data and the format of USB Ultrahigh speed datas；
For the USB ultrahigh speeds transceiver on the one hand for receiving and dispatching USB Ultrahigh speed datas, the USB Ultrahigh speed datas include by institute
The USB Ultrahigh speed datas that USB converter transmits and the usb data that optical fiber interface transmits are stated, the USB ultrahigh speeds transceiver is another
The speed for the USB device or usb host that aspect multiplexing is inserted into detection；
The high-speed analog switch includes for realizing the conducting to the signal link for two-way communication, the signal link
The first signal link between USB interface and USB ultrahigh speed transceivers, the second signal chain between USB interface and optical fiber interface
Third signal link between road and USB ultrahigh speeds transceiver and optical fiber interface.
2. a kind of fiber transmission device for USB interface according to claim 1, it is characterised in that the signal link
Conducting specifically include：When USB high-speed transceivers detect extraction and insertion, the first signal link of conducting, if detecting insertion
And then by USB ultrahigh speed transceiver detection speed, when speed is ultrahigh speed, be connected second signal link, when and only
When speed is high speed or low full speed, third signal link is connected.
3. a kind of fiber transmission device for USB interface according to claim 1, it is characterised in that the signal link
Conducting specifically include：When USB high-speed transceivers detect extraction and insertion, the first signal link of conducting, if detecting insertion
And then by USB ultrahigh speed transceiver detection speed, third signal link is then connected and carries out usb host speed and USB device speed
The communication negotiation of degree disconnects third signal link and is connected when the speed of usb host and USB device is ultrahigh speed
Otherwise second signal link keeps the conducting of third signal link.
4. a kind of fiber transmission device for USB interface according to claim 1 or 2 or 3, it is characterised in that described
USB ultrahigh speed transceivers are multiplexed in the monitoring of the usb data of second signal chain road.
5. a kind of fiber transmission device for USB interface according to claim 1 or 2 or 3, it is characterised in that described
USB ultrahigh speed transceivers include USB3.0/3.1 transceivers, the USB high-speed transceivers include USB2.0 transceivers or
USB3.0/3.1 transceivers.
6. a kind of optical fiber transmission method for USB interface, it is characterised in that include the following steps：
S1, USB high-speed transceiver detect the plug of USB device or usb host, and when detecting plug, high-speed analog switch is led
Logical the first signal link between USB interface and USB ultrahigh speed transceivers；
The speed of S2, USB ultrahigh speed transceiver detection USB device or usb host；
S3, when speed is ultrahigh speed, the second signal between USB interface and optical fiber interface is connected in high-speed analog switch
Link realizes the ultrahigh speed communication of usb data；When speed is high speed or low full speed, third signal link is connected,
USB high-speed transceiver receiving and transmitting signals, and USB high speeds or low full speed data are subjected to lattice with USB Ultrahigh speed datas by USB converter
Mutual conversion in formula is then received and dispatched by USB ultrahigh speed transceivers to realize signal communication；Under other situations, High Speed Analog is opened
It closes without operation；
S4, S1 is repeated to S3.
7. a kind of optical fiber transmission method for USB interface according to claim 6, it is characterised in that the step S3 is
The communication negotiation that third signal link carries out usb host speed and USB device speed is connected, is set and if only if usb host and USB
When standby speed is ultrahigh speed, disconnects third signal link and second signal link is connected, otherwise third signal link is kept to lead
It is logical.
8. a kind of optical fiber transmission method for USB interface according to claim 6, it is characterised in that the USB superelevation
Fast transceiver reusable is in the monitoring of the usb data of second signal chain road.
9. a kind of optical fiber transmission method for USB interface described according to claim 6 or 7 or 8, which is characterized in that described
USB ultrahigh speed transceivers include USB3.0/3.1 transceivers, the USB high-speed transceivers include USB2.0 transceivers or
USB3.0/3.1 transceivers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238532.7A CN108599848B (en) | 2018-03-21 | 2018-03-21 | Optical fiber transmission device and method for USB interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238532.7A CN108599848B (en) | 2018-03-21 | 2018-03-21 | Optical fiber transmission device and method for USB interface |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108599848A true CN108599848A (en) | 2018-09-28 |
| CN108599848B CN108599848B (en) | 2021-01-15 |
Family
ID=63627031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810238532.7A Active CN108599848B (en) | 2018-03-21 | 2018-03-21 | Optical fiber transmission device and method for USB interface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108599848B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822812A (en) * | 2010-02-22 | 2012-12-12 | 苹果公司 | Methods and apparatus for intelligently providing power to a device |
| US8386689B2 (en) * | 2010-08-13 | 2013-02-26 | Hewlett-Packard Development Company, L.P. | Interface adapter systems and methods |
| CN104101965A (en) * | 2014-07-02 | 2014-10-15 | 长芯盛（武汉）科技有限公司 | Hybrid optoelectronic transceiver used for USB 3.0 interface and optical cable of hybrid optoelectronic transceiver |
| US9063828B2 (en) * | 2011-07-06 | 2015-06-23 | Renesas Electronics Corporation | Controller and transfer speed control method |
| CN107300883A (en) * | 2017-08-09 | 2017-10-27 | 东莞市启鼎光电科技有限公司 | It is a kind of based on optical fiber transmit USB2.0 3.0 HUB |
-
2018
- 2018-03-21 CN CN201810238532.7A patent/CN108599848B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102822812A (en) * | 2010-02-22 | 2012-12-12 | 苹果公司 | Methods and apparatus for intelligently providing power to a device |
| US8386689B2 (en) * | 2010-08-13 | 2013-02-26 | Hewlett-Packard Development Company, L.P. | Interface adapter systems and methods |
| US9063828B2 (en) * | 2011-07-06 | 2015-06-23 | Renesas Electronics Corporation | Controller and transfer speed control method |
| CN104101965A (en) * | 2014-07-02 | 2014-10-15 | 长芯盛（武汉）科技有限公司 | Hybrid optoelectronic transceiver used for USB 3.0 interface and optical cable of hybrid optoelectronic transceiver |
| CN107300883A (en) * | 2017-08-09 | 2017-10-27 | 东莞市启鼎光电科技有限公司 | It is a kind of based on optical fiber transmit USB2.0 3.0 HUB |
Non-Patent Citations (2)
| Title |
|---|
| I. V. VENATOVSKY: "The Fiber Optics Converter For Continuous And Discrete Recording Of Oscillograms On Cine Film Using High-Speed And Super-Speed Ca Eras", 《16TH INTERNATIONAL CONGRESS ON HIGH SPEED PHOTOGRAPHY AND PHOTONICS》 * |
| 徐凌宇: "光纤转USB3.0高速数据转换模块设计", 《核电子学与探测技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108599848B (en) | 2021-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109286771B (en) | Terminal equipment and control method thereof | |
| TWI440571B (en) | Communication interface conversion device | |
| CN104101965B (en) | For mixed electrical optical transceiver and the optical cable thereof of USB3.0/3.1 interface | |
| CN202889527U (en) | High-definition non-compression multi-service digital video optical transmitter and receiver | |
| CN105118409B (en) | V BY ONE coding/decoding systems and method based on FPGA | |
| CN205510322U (en) | Device based on optical ethernet interface transfer serial ports data | |
| CN108599848A (en) | A kind of fiber transmission device and method for USB interface | |
| CN102780503B (en) | Audio and data forwarding device with multiple transmission means based on compact peripheral component interconnect (CPCI) bus | |
| CN106230503B (en) | The method and system of data transmission device and transmission data | |
| CN202694039U (en) | Adapter circuit | |
| CN110309091A (en) | A kind of Signals Transfer Board, channel test platform and its test method | |
| CN202503520U (en) | High-speed Ethernet optical module and radio-frequency data transmission device thereof | |
| CN105307109A (en) | USB (Universal Serial Bus) wireless connector, wireless connection system and USB wireless communication method | |
| CN202094915U (en) | Tester aiming at network transmission rate in network television | |
| CN216388075U (en) | Photoelectric conversion device for converting A interface into Micro B interface based on USB3.0 | |
| CN100409263C (en) | Radio interface system for testing instrument | |
| DE60207366D1 (en) | Sequenced high-speed multi-channel bus | |
| CN209949142U (en) | Signal processing system | |
| KR101264179B1 (en) | Rs232 serial cable convertor module and rs232 serial cable convertor including the module | |
| CN203761399U (en) | Optical communication equipment of single-fiber bi-directional symmetrical rate and system | |
| CN211428499U (en) | Interface circuit compatible with multiple working modes, connecting cable and electronic equipment | |
| CN207947806U (en) | Light of stage agreement extender based on Ethernet transmission | |
| CN204046613U (en) | Special photoelectric conversion communication apparatus is surely controlled in region | |
| CN207637147U (en) | It is a kind of based on one Uart mouthfuls of multichannel RS485 interface communication circuitries | |
| CN112735323A (en) | Adapter plate and display device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210329 Address after: No.18, ningshuang Road, Nanjing, Jiangsu, 210000 Patentee after: Nanjing qinheng Microelectronics Co.,Ltd. Address before: No.18, ningshuang Road, Yuhuatai District, Nanjing City, Jiangsu Province, 210012 Patentee before: JIANGSU QINHENG Co.,Ltd. |