CN112948301A - Multifunctional conversion interface device - Google Patents

Multifunctional conversion interface device Download PDF

Info

Publication number
CN112948301A
CN112948301A CN202110210523.9A CN202110210523A CN112948301A CN 112948301 A CN112948301 A CN 112948301A CN 202110210523 A CN202110210523 A CN 202110210523A CN 112948301 A CN112948301 A CN 112948301A
Authority
CN
China
Prior art keywords
interface
conversion
communication protocol
communication
pin
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
Application number
CN202110210523.9A
Other languages
Chinese (zh)
Inventor
周小斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inspur Electronic Information Industry Co Ltd
Original Assignee
Inspur Electronic Information Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inspur Electronic Information Industry Co Ltd filed Critical Inspur Electronic Information Industry Co Ltd
Priority to CN202110210523.9A priority Critical patent/CN112948301A/en
Publication of CN112948301A publication Critical patent/CN112948301A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/382Information transfer, e.g. on bus using universal interface adapter
    • G06F13/385Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus
    • G06F13/42Bus transfer protocol, e.g. handshake; Synchronisation
    • G06F13/4282Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus

Abstract

The application discloses multi-functional conversion interface arrangement, including the first interface that conversion chip, inside pin and the first side signal pin of conversion chip are connected, the second interface that inside pin and the second side signal pin of conversion chip are connected, the third interface that inside pin and the second side signal pin of conversion chip are connected, wherein: the first interface is used for transmitting communication signals of a first communication protocol; the second interface and the third interface are used for transmitting communication signals of a second communication protocol; the conversion chip is used for converting the communication signal of the first communication protocol into the communication signal of the second communication protocol and converting the communication signal of the second communication protocol into the communication signal of the first communication protocol. The multifunctional conversion interface device can effectively realize two-to-two communication among the first interface, the second interface and the third interface, solves the problem that one conversion device can only convert one to one, and has higher compatibility and more convenient use effect.

Description

Multifunctional conversion interface device
Technical Field
The invention relates to the field of equipment maintenance accessories, in particular to a multifunctional conversion interface device.
Background
Currently, a COM (serial communication port) port is widely used in personal computers, servers, switches, routers, projectors, televisions, and set-top boxes, so that maintenance personnel frequently use the COM port to collect logs and analyze failure causes when positioning failures. However, since these devices are designed by different manufacturers and different hardware designers, the interface forms of the COM ports are different from one another, which causes a certain trouble for the maintenance personnel to obtain the logs of the COM ports, and the maintenance personnel needs various types of conversion lines to correspond to different device interfaces, thereby causing inconvenience in carrying and purchasing.
Therefore, how to provide a solution to the above technical problems is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a multifunctional conversion interface device. The specific scheme is as follows:
a multifunctional conversion interface device comprises a conversion chip, a first interface with an internal pin connected with a first side signal pin of the conversion chip, a second interface with an internal pin connected with a second side signal pin of the conversion chip, and a third interface with an internal pin connected with a second side signal pin of the conversion chip, wherein:
the first interface is used for transmitting communication signals of a first communication protocol;
the second interface and the third interface are both used for transmitting communication signals of a second communication protocol;
the conversion chip is used for converting the communication signal of the first communication protocol into the communication signal of the second communication protocol and converting the communication signal of the second communication protocol into the communication signal of the first communication protocol.
Preferably, the first communication protocol is a USB communication protocol, and the first interface is a USB interface.
Preferably, the second communication protocol is specifically an RS-232 communication protocol.
Preferably, the conversion chip comprises a CH340 chip and a MAX213 chip.
Preferably, the second interface is specifically a male DB9 interface, a female DB9 interface, or an RJ45 interface;
the third interface is specifically a DB9 interface male head, a DB9 interface female head or an RJ45 interface.
Preferably, the multi-function conversion interface device further includes:
and the internal pin is connected with the second side signal pin of the conversion chip.
Preferably, the second interface is a DB9 interface male connector, the third interface is a DB9 interface female connector, and the fourth interface is an RJ45 interface.
Preferably, the multifunctional conversion interface device further comprises a pluggable structure for:
the internal pin of the second interface and the second side signal pin of the conversion chip are connected in a pluggable manner;
and/or the internal pin of the third interface and the second side signal pin of the conversion chip are connected in a pluggable manner.
Preferably, the multi-function conversion interface device includes a plurality of the second interfaces and/or a plurality of the third interfaces.
The application discloses multi-functional conversion interface arrangement, including conversion chip, inside pin with first interface, the inside pin that the first side signal pin of conversion chip is connected with second interface, the inside pin that the second side signal pin of conversion chip is connected with the third interface that the second side signal pin of conversion chip is connected, wherein: the first interface is used for transmitting communication signals of a first communication protocol; the second interface and the third interface are both used for transmitting communication signals of a second communication protocol; the conversion chip is used for converting the communication signal of the first communication protocol into the communication signal of the second communication protocol and converting the communication signal of the second communication protocol into the communication signal of the first communication protocol. The utility model provides a multi-functional conversion interface arrangement utilizes its inside mode of connection and conversion chip, can effectively realize two liang of communications between first interface, second interface, the third interface, solves the puzzlement that a conversion equipment can only one-to-one conversion, compares prior art, and this application has higher compatibility and more convenient result of use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a diagram illustrating a structure of a multifunctional adapter according to an embodiment of the present invention;
FIG. 2 is a block diagram of a multi-function switch interface device according to an embodiment of the present invention;
fig. 3 is a structural distribution diagram of an embodiment of a multifunctional conversion interface device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Because these equipment are designed by different manufacturers and different hardware designers, the interface forms of the COM port are different, which causes a certain trouble for the maintainers to obtain the logs of the COM port, and the maintainers need various different types of conversion lines to correspond to different equipment interfaces, thereby causing inconvenience in carrying and purchasing. The utility model provides a multi-functional conversion interface arrangement utilizes its inside mode of connection and conversion chip, can effectively realize two liang of communications between first interface, second interface, the third interface, solves the puzzlement that a conversion equipment can only one-to-one conversion, compares prior art, and this application has higher compatibility and more convenient result of use.
The embodiment of the invention discloses a multifunctional conversion interface device, which comprises a conversion chip 1, a first interface P1 with an internal pin connected with a first side signal pin of the conversion chip 1, a second interface P2 with an internal pin connected with a second side signal pin of the conversion chip 1, and a third interface P3 with an internal pin connected with a second side signal pin of the conversion chip 1, wherein as shown in figure 1:
the first interface P1 is used for transmitting communication signals of a first communication protocol;
the second interface P2 and the third interface P3 are both used for transmitting communication signals of a second communication protocol;
the conversion chip 1 is used for converting a communication signal of a first communication protocol into a communication signal of a second communication protocol, and is also used for converting a communication signal of the second communication protocol into a communication signal of the first communication protocol.
It can be understood that, since the internal pins of the second interface P2 and the third interface P3 are both correspondingly connected to the second side signal pins of the conversion chip 1, that is, the internal pins of the second interface P2 are correspondingly connected to the internal pins of the third interface P3, and both interfaces correspond to the second communication protocol, the second interface P2 and the third interface P3 can implement mutual transmission of communication signals of the second communication protocol.
Due to the existence of the conversion chip 1, the communication signal of the first interface P1 can be converted into the protocol and then transmitted to the second interface P2 or the third interface P3, and the communication signal of the second interface P2 or the third interface P3 can also be converted into the protocol and then transmitted to the first interface P1.
Specifically, the first interface P1, the second interface P2, and the third interface P3 may be externally connected to other devices, such as a computer, a server, a switch, a router, etc., as long as the interfaces have shapes corresponding to the first interface P1, the second interface P2, or the third interface P3. The multifunctional conversion interface device in the embodiment supports two-to-two communication among the first interface P1, the second interface P2 and the third interface P3, and only two interfaces perform external equipment at the same time to perform communication, which is the most reliable communication mode and cannot be interfered by other interfaces; if the three interfaces are externally connected with other equipment, the requirement on the sending time is high, only one interface can be used as a sending end at the same time, and the other two interfaces can be used as information receiving ends, so that the condition of multi-end sending information collision is avoided.
Further, considering whether the actual port shapes corresponding to different communication protocols are single and Universal, the first communication protocol may specifically be selected as a USB (Universal Serial Bus) communication protocol, the first interface P1 may specifically be a USB interface, while the second communication protocol may specifically be an RS-232(Recommended Standard 232, asynchronous transfer Standard interface, also called Serial port, COM port) communication protocol, the second interface P2 may specifically be a male DB9 interface, a female DB9 interface, or an RJ45(Registered Jack 45, also called internet port), and the similar third interface P3 may specifically be a male DB9 interface, a female DB9 interface, or an RJ45 interface. Further, for the conversion chip 1 to implement the conversion between the USB communication protocol and the RS-232 communication protocol, the conversion chip 1 may include a CH340 chip and a MAX213 chip.
The application discloses multi-functional conversion interface arrangement, including conversion chip, inside pin with first interface, the inside pin that the first side signal pin of conversion chip is connected with second interface, the inside pin that the second side signal pin of conversion chip is connected with the third interface that the second side signal pin of conversion chip is connected, wherein: the first interface is used for transmitting communication signals of a first communication protocol; the second interface and the third interface are both used for transmitting communication signals of a second communication protocol; the conversion chip is used for converting the communication signal of the first communication protocol into the communication signal of the second communication protocol and converting the communication signal of the second communication protocol into the communication signal of the first communication protocol. The utility model provides a multi-functional conversion interface arrangement utilizes its inside mode of connection and conversion chip, can effectively realize two liang of communications between first interface, second interface, the third interface, solves the puzzlement that a conversion equipment can only one-to-one conversion, compares prior art, and this application has higher compatibility and more convenient result of use.
The embodiment of the invention discloses a specific multifunctional conversion interface device, and compared with the previous embodiment, the technical scheme is further explained and optimized in the embodiment. Specifically, the method comprises the following steps:
the multifunctional conversion interface device further comprises:
and a fourth interface P4 with an internal pin connected to the second side signal pin of the conversion chip 1.
Further, the second interface P2, the third interface P3, and the fourth interface P4 connected to the second side signal pins of the conversion chip 1 are all correspondingly connected to the same signal pins, and can communicate with each other, and in order to improve the diversity, the three interfaces may be set to different interface shapes, for example, the second interface P2 is specifically a DB9 interface male, the third interface P3 is specifically a DB9 interface female, and the fourth interface P4 is specifically an RJ45 interface.
Referring to fig. 2, in fig. 2, the first communication protocol is a USB communication protocol, the first interface P1 is specifically a USB interface, the second communication protocol is specifically an RS-232 communication protocol, the second interface P2 is specifically a DB9 interface male plug, the third interface P3 is specifically a DB9 interface female plug, the fourth interface P4 is specifically an RJ45 interface, the conversion chip 1 is a CH340 chip and a MAX213 chip, and the connection manner of the pins is as shown in fig. 2.
The embodiment of the invention discloses a specific multifunctional conversion interface device, and compared with the previous embodiment, the technical scheme is further explained and optimized in the embodiment. Specifically, the method comprises the following steps:
referring to fig. 3, the multifunctional conversion interface device further includes a pluggable structure 2 for:
the internal pin of the second interface P2 and the second side signal pin of the conversion chip 1 are connected in a pluggable manner;
and/or the internal pin of the third interface P3 and the second side signal pin of the conversion chip 1 can be connected in a pluggable manner.
It can be understood that the pluggable structure 2 is similar to a circuit board connected to the second side signal pins, and the circuit board is provided with pin sockets corresponding to the second port P2 and/or the third port P3 for plugging the second port P2 and/or the third port P3, and the corresponding connection between the pin sockets and the second side signal pins is pre-completed inside the circuit board.
Further, the multi-functional conversion interface device includes a plurality of second interfaces P2 and/or a plurality of third interfaces P3. According to actual working requirements, the pluggable structure 2 may connect a plurality of second interfaces P2 and/or a plurality of third interfaces P3, where the second interface P2 and the third interface P3 are different port shapes. Meanwhile, the pluggable structure 2 may further be provided with a connection switch in a hardware form, so as to perform on-off control on whether the device of each interface is connected to the communication channel.
In addition to the above description, the pluggable structure 2 may perform other connection and control operations related to the conversion chip 1, the second interface P2, and the third interface P3, and the embodiment is not limited thereto.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The multifunctional conversion interface device provided by the invention is described in detail above, and a specific example is applied in the text to explain the principle and the implementation of the invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims (9)

1. The multifunctional conversion interface device is characterized by comprising a conversion chip, a first interface with an internal pin connected with a first side signal pin of the conversion chip, a second interface with an internal pin connected with a second side signal pin of the conversion chip, and a third interface with an internal pin connected with a second side signal pin of the conversion chip, wherein:
the first interface is used for transmitting communication signals of a first communication protocol;
the second interface and the third interface are both used for transmitting communication signals of a second communication protocol;
the conversion chip is used for converting the communication signal of the first communication protocol into the communication signal of the second communication protocol and converting the communication signal of the second communication protocol into the communication signal of the first communication protocol.
2. The multi-function conversion interface device according to claim 1, wherein the first communication protocol is a USB communication protocol, and the first interface is a USB interface.
3. The multi-function conversion interface device of claim 2, wherein said second communication protocol is specifically an RS-232 communication protocol.
4. The multi-functional conversion interface device of claim 3, wherein said conversion chip comprises a CH340 chip and a MAX213 chip.
5. The multi-functional conversion interface device of claim 3,
the second interface is specifically a DB9 interface male head, a DB9 interface female head or an RJ45 interface;
the third interface is specifically a DB9 interface male head, a DB9 interface female head or an RJ45 interface.
6. The multi-functional conversion interface device of claim 1, further comprising:
and the internal pin is connected with the second side signal pin of the conversion chip.
7. The multi-function conversion interface device according to claim 6, wherein said second interface is a male DB9 interface, said third interface is a female DB9 interface, and said fourth interface is an RJ45 interface.
8. The multi-functional conversion interface device of any one of claims 1 to 7, further comprising a pluggable structure for:
the internal pin of the second interface and the second side signal pin of the conversion chip are connected in a pluggable manner;
and/or the internal pin of the third interface and the second side signal pin of the conversion chip are connected in a pluggable manner.
9. The multi-function switching interface device according to claim 8, wherein said multi-function switching interface device comprises a plurality of said second interfaces and/or a plurality of said third interfaces.
CN202110210523.9A 2021-02-25 2021-02-25 Multifunctional conversion interface device Pending CN112948301A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110210523.9A CN112948301A (en) 2021-02-25 2021-02-25 Multifunctional conversion interface device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110210523.9A CN112948301A (en) 2021-02-25 2021-02-25 Multifunctional conversion interface device

Publications (1)

Publication Number Publication Date
CN112948301A true CN112948301A (en) 2021-06-11

Family

ID=76246135

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110210523.9A Pending CN112948301A (en) 2021-02-25 2021-02-25 Multifunctional conversion interface device

Country Status (1)

Country Link
CN (1) CN112948301A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114564430A (en) * 2022-02-24 2022-05-31 杭州华澜微电子股份有限公司 Conversion device, conversion equipment and conversion method

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050154799A1 (en) * 2004-01-08 2005-07-14 Uis Abler Electronics Co., Ltd. Switching device for RS-232 serial port and USB serial port
CN1671145A (en) * 2004-03-16 2005-09-21 华为技术有限公司 Line conjunction method for communication interface and line partition apparatus
CN202405587U (en) * 2012-01-13 2012-08-29 汉柏科技有限公司 Device for converting universal serial bus (USB) interface into RJ-45 interface with serial port function
US20130242497A1 (en) * 2012-03-13 2013-09-19 Sunix Co., Ltd. Multi-serial port connection device and connection card thereof
CN203277916U (en) * 2013-05-06 2013-11-06 航天科工深圳(集团)有限公司 A junction box
CN204578559U (en) * 2015-05-12 2015-08-19 云南电网公司玉溪供电局 A kind of four road RS232 serial ports routers
CN205334462U (en) * 2015-12-17 2016-06-22 广州帝特电子科技有限公司 USB changes interface converting device of two serial portss
CN106168935A (en) * 2016-06-30 2016-11-30 百度在线网络技术(北京)有限公司 A kind of serial ports conversion equipment and the method obtaining equipment bi-directional data
CN106506304A (en) * 2016-10-17 2017-03-15 浙江中控技术股份有限公司 Extendible communication system and method
CN206135161U (en) * 2016-10-21 2017-04-26 无锡安诺信通信技术有限公司 General line preface auto -change over device
CN207217948U (en) * 2017-06-14 2018-04-10 深圳市中航比特通讯技术有限公司 A kind of cable of integrated serial ports and network interface
CN207623969U (en) * 2017-12-26 2018-07-17 广东星创众谱仪器有限公司 A kind of usb hub for supporting a variety of data-interface compatibilities
CN109144921A (en) * 2017-06-27 2019-01-04 中兴通讯股份有限公司 AccessPort equipment
CN110221997A (en) * 2019-05-20 2019-09-10 湖北三江航天万峰科技发展有限公司 A kind of USB interface-based versatile interface interconnecting device
CN209388294U (en) * 2018-12-04 2019-09-13 广州中国科学院先进技术研究所 A kind of embedded serial port HUB
CN210092525U (en) * 2019-08-07 2020-02-18 山东梅格彤天电气有限公司 Distribution automation terminal equipment multi-joint serial port debugging line

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050154799A1 (en) * 2004-01-08 2005-07-14 Uis Abler Electronics Co., Ltd. Switching device for RS-232 serial port and USB serial port
CN1671145A (en) * 2004-03-16 2005-09-21 华为技术有限公司 Line conjunction method for communication interface and line partition apparatus
CN202405587U (en) * 2012-01-13 2012-08-29 汉柏科技有限公司 Device for converting universal serial bus (USB) interface into RJ-45 interface with serial port function
US20130242497A1 (en) * 2012-03-13 2013-09-19 Sunix Co., Ltd. Multi-serial port connection device and connection card thereof
CN203277916U (en) * 2013-05-06 2013-11-06 航天科工深圳(集团)有限公司 A junction box
CN204578559U (en) * 2015-05-12 2015-08-19 云南电网公司玉溪供电局 A kind of four road RS232 serial ports routers
CN205334462U (en) * 2015-12-17 2016-06-22 广州帝特电子科技有限公司 USB changes interface converting device of two serial portss
CN106168935A (en) * 2016-06-30 2016-11-30 百度在线网络技术(北京)有限公司 A kind of serial ports conversion equipment and the method obtaining equipment bi-directional data
CN106506304A (en) * 2016-10-17 2017-03-15 浙江中控技术股份有限公司 Extendible communication system and method
CN206135161U (en) * 2016-10-21 2017-04-26 无锡安诺信通信技术有限公司 General line preface auto -change over device
CN207217948U (en) * 2017-06-14 2018-04-10 深圳市中航比特通讯技术有限公司 A kind of cable of integrated serial ports and network interface
CN109144921A (en) * 2017-06-27 2019-01-04 中兴通讯股份有限公司 AccessPort equipment
CN207623969U (en) * 2017-12-26 2018-07-17 广东星创众谱仪器有限公司 A kind of usb hub for supporting a variety of data-interface compatibilities
CN209388294U (en) * 2018-12-04 2019-09-13 广州中国科学院先进技术研究所 A kind of embedded serial port HUB
CN110221997A (en) * 2019-05-20 2019-09-10 湖北三江航天万峰科技发展有限公司 A kind of USB interface-based versatile interface interconnecting device
CN210092525U (en) * 2019-08-07 2020-02-18 山东梅格彤天电气有限公司 Distribution automation terminal equipment multi-joint serial port debugging line

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114564430A (en) * 2022-02-24 2022-05-31 杭州华澜微电子股份有限公司 Conversion device, conversion equipment and conversion method

Similar Documents

Publication Publication Date Title
US6584519B1 (en) Extender for universal serial bus
EP2088514A1 (en) Fiber-optic to USB ethernet converter
US8696218B2 (en) Optoelectronic signal conversion module
TW200941837A (en) UART/USB converting apparatus
CN102208721A (en) Universal serial bus connector and converter for universal serial bus connector
CN112948301A (en) Multifunctional conversion interface device
CN110460381A (en) A kind of optical module
CN111858425A (en) USB-optical fiber conversion device and USB communication equipment
CN217562026U (en) Serial port adapter plate and system of hardware simulation accelerator
US20060270284A1 (en) AC power network LAN interface module
CN112882969A (en) Data connection interface and data transmission device, system and method
CN209765328U (en) industrial-grade remote IO module based on EtherCAT
CN111108654B (en) Data line
CN202886974U (en) Server computer remote control system based on controller area network (CAN) bus
CN111638863A (en) KVM USB link switching system
US20070116042A1 (en) Power extension apparatus having local area network switching function
CN219831747U (en) Multi-node management circuit and server
EP2741428A1 (en) Network access device with power line communication capability
CN216772411U (en) 4-channel RS485 expansion board based on anti-surge technology
CN212751312U (en) USB bridge for device interconnection
CN217305843U (en) Network port expansion card, mainboard and computer
US20230081278A1 (en) Connector subassembly and electronic device using the same
CN202177731U (en) Universal modular connector
CN216252761U (en) Electric port module
CN219917848U (en) Docking station capable of being inserted by USB (universal serial bus) double

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210611