CN209526823U - It is a kind of wirelessly to throw screen relay device and wirelessly throw screen system - Google Patents
It is a kind of wirelessly to throw screen relay device and wirelessly throw screen system Download PDFInfo
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- CN209526823U CN209526823U CN201920749064.XU CN201920749064U CN209526823U CN 209526823 U CN209526823 U CN 209526823U CN 201920749064 U CN201920749064 U CN 201920749064U CN 209526823 U CN209526823 U CN 209526823U
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- 238000012545 processing Methods 0.000 claims abstract description 104
- 238000004891 communication Methods 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/4363—Adapting the video stream to a specific local network, e.g. a Bluetooth® network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Projection Apparatus (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
Shield relay device the utility model discloses a kind of wireless throwing and wirelessly throws screen system, relay device includes audio input interface, video input interface, audio processing modules, video processing module and the first wireless processing module, the input terminal of audio input interface and video input interface be loaded with wait throw screen content carrier be electrically connected, the output end of audio input interface is connect with the input terminal for handling the audio processing modules wait throw screen audio-frequency information, the output end of video input interface is connect with the input terminal for handling the video processing module wait throw screen video information, the output end of audio processing modules and video processing module is connect with the input terminal for the processing result of audio processing modules and video processing module to be wirelessly sent to the first wireless processing module for throwing screen equipment.Computer screen can be wirelessly transmitted to throwing screen equipment by interfacing the relay device of connection by the utility model, without installing any software on computers.
Description
Technical field
The utility model relates to projection device field, in particular to a kind of wireless throwing screen relay device and wireless screen of throwing are
System.
Background technique
With popularizing for Intelligent office, business office increasingly pursues high efficiency simplification.In current business office, everybody
By computer contents projection to projector, need that computer is connected to projector using VGA or HDMI wire beam；Currently there is also one
A little wireless display equipment, but installation or runs software are required to carry out wireless audio-video transmission；Or utilize computer itself
Airplay, WIDI agreement projected, then there is a problem of inconvenient for operation；
Therefore, it is necessary to provide the new convenient throwing screen launching technique of one kind to solve the above problems.
Utility model content
In order to solve problems in the prior art, the utility model provides a kind of wirelessly throwing screen relay device and wireless throw is shielded
System makes computer or mobile phone without installation or runs any software, connects without harness is carried out with display equipment, Ji Kejian
Single convenient realization wireless audio and video transmitting, the technical solution is as follows:
On the one hand, the utility model provides a kind of wireless throwing screen relay device, including shell, the sound being arranged on shell
Frequency input interface and video input interface and setting are wireless in the intracorporal audio processing modules of shell, video processing module and first
The input terminal of processing module, the audio input interface and video input interface be loaded with wait throw screen content carrier be electrically connected
It connects,
The output end of the audio input interface with for handle wait throw screen content sound intermediate frequency information audio processing modules
Input terminal connection, the output end of the video input interface with for handle wait throw screen content in video information video handle
The input terminal of module connects,
The output end of the audio processing modules and video processing module is and for by the audio processing modules and view
The processing result of frequency processing module is wirelessly sent to the input terminal connection for the first wireless processing module for throwing screen equipment.
Further, the wireless throwing screen relay device further includes that the Reverse Turning Control interface being arranged on shell and setting exist
The intracorporal Reverse Turning Control module of shell, the Reverse Turning Control module passes through with Reverse Turning Control interface and the first wireless processing module to be had
The electronics signal wires of line are attached.
Optionally, the Reverse Turning Control interface is USB interface or Type-C interface.
Further, the wireless screen relay device of throwing further includes that the intracorporal power module for power supply of shell is arranged in,
The power module is connect by Reverse Turning Control interface with external power supply.
Optionally, the audio input interface and video input interface be HDMI interface or its be that Type-C connects
Mouthful；
The audio input interface and video input interface are mutually independent interface, alternatively, the audio input interface
An interface is integrated into video input interface.
Optionally, the audio input interface is line-in interface, and the video input interface is that USB interface or DP connect
Mouthful.
Further, the audio input interface is connect with audio processing modules by wired electronics signal wires, described
Video input interface is connect with video processing module by wired electronics signal wires, the audio processing modules, video processing
Module is connect by wired electronics signal wires with the first wireless processing module.
On the other hand, the utility model additionally provide it is a kind of wireless throw screen system, including be loaded with carrier wait throw screen content,
It throws screen equipment and wireless throw as described above shields relay device.
Further, the audio output interface of the wireless audio input interface for throwing screen relay device and carrier passes through sound
The video output interface of the connection of frequency interface line, the wireless video input interface for throwing screen relay device and carrier is connect by video
Mouth line connection.
Further, the screen equipment of throwing includes display unit and the second wireless processing for transmitting display information to it
Module, second wireless processing module and the wireless first wireless processing module two-way communication for throwing screen relay device connect
It connects.
Technical solution bring provided by the utility model has the beneficial effect that:
A. the computer or mobile phone connecting with relay device are without installation or run any software, can be realized computer or
Content on mobile phone carries out throwing screen；
B. it is loaded with the computer for throwing screen content or mobile phone is not necessarily to and throws screen display device progress harness connection, that is, realize wireless throw
Screen；
C. it can be suitable for the computer or mobile phone of a variety of distinct interfaces on the market, versatility is high；
D. without installing or running any software on computer carrier, it will be able to which screen equipment, Reverse Turning Control electricity are thrown in operation
Brain.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the wireless module frame chart for throwing screen system provided by the embodiment of the utility model；
Fig. 2 is the wireless data flow diagram for throwing screen system provided by the embodiment of the utility model；
Fig. 3 is the wireless module frame for throwing screen relay device provided by the embodiment of the utility model with Reverse Turning Control module
Figure；
Fig. 4 is the data flow diagram during Reverse Turning Control provided by the embodiment of the utility model；
Fig. 5 is the module frame chart of the wireless throwing screen system of the first interface formats provided by the utility model；
Fig. 6 is the module frame chart of the wireless throwing screen system of second of interface formats provided by the utility model；
Fig. 7 is the module frame chart of the wireless throwing screen system of the third interface formats provided by the utility model.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.In addition, term " includes " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, device, product or equipment
Those of be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes,
The intrinsic other step or units of method, product or equipment.
In one embodiment of the utility model, a kind of wireless throwing screen relay device, referring to Fig. 1, the nothing are provided
Line throws screen relay device and includes shell, the audio input interface being arranged on shell and video input interface and be arranged in shell
Interior audio processing modules, video processing module and the first wireless processing module, the audio input interface and video input connect
Mouthful input terminal be loaded with wait throw screen content carrier (such as computer) be electrically connected, specifically, wait throw shield content include computer
The video frame images and corresponding current audio-frequency information that screen is currently shown.
The output end of the audio input interface with for handle wait throw screen content sound intermediate frequency information audio processing modules
Input terminal connection, the output end of the video input interface with for handle wait throw screen content in video information video handle
The input terminal of module connects, and specifically, the audio processing modules main function is come to from audio input interface acquisition
Audio data is pre-processed, and being encoded to can be by the audio format of wireless network transmissions, the video processing module master
Act on is that the video data to come to video input interface acquisition pre-processes, and is encoded to and can be passed by wireless network
Defeated video format.Audio processing and video processing are technology mature in computer field, such as the production of HiSilicon, Huawei
HI3516 chip, a chip for exactly integrating audio processing modules and video processing module.The present invention is unlimited
The chip of this fixed model, it is intended to prove audio processing modules and video processing module is the prior art.
To audio processing modules and video processing module are integrated on a single die, i.e., the two modules just have jointly
Interface, in one embodiment of the utility model, the audio input interface and video input interface can connect for HDMI
Mouthful or its be Type-C interface, this interface setting under, the audio input interface can collect with video input interface
As an interface, as shown in Figure 6.If not integrating on a single die, even if at the audio processing modules and video
The interface for managing module is HDMI interface, or mutually independent interface (not shown).
In addition to HDMI interface and Type-C interface, the audio input interface can also be line-in interface, the video
Input interface can also be USB interface or DP interface, referring to Fig. 5, in this case, then the audio input interface and video
Input interface cannot be integrated into an interface, but be mutually independent interface.
The output end of the audio processing modules and video processing module is and for by the audio processing modules and view
The processing result of frequency processing module is wirelessly sent to the input terminal connection for the first wireless processing module for throwing screen equipment.
First wireless processing module main function is to the data after audio processing modules and video processing module processing by first
Wireless module transfers out.First wireless module can use WIFI mode, be also possible to the side 60GHz WirelessHD
Formula is also possible to UWB, is also possible to satellite communication, is also possible to 4G, 5G mode in mobile communication or other high speeds
Wireless transmission method.Specifically, the second wireless processing module is equipped on throwing screen equipment, for from the first wireless processing module
Wireless data is received, is then converted into the data that can be played out on the display module for throwing screen equipment by processing.
In the utility model embodiment, the audio input interface and audio processing modules pass through wired electronic signal
Line connection, the video input interface are connect with video processing module by wired electronics signal wires, the audio processing mould
Block, video processing module are connect by wired electronics signal wires with the first wireless processing module.To sum up, screen process is wirelessly thrown
In data flow it is as shown in Figure 2: computer audio frequency data are sent to audio processing modules, audio processing mould by audio wireline interface
Block gives the first wireless signal processing module, computer by audio processing, such as denoising, analog-to-digital conversion, coding mode, wire transmission
Video data is sent to video processing module by video cable interface, and video processing module is handled by video, as modulus turns
The modes such as change, encode, the first wireless signal processing module is given in wire transmission, and obtained processing by the first wireless processing module
Audio processing result and video processing results, which are wirelessly transmitted to, to be thrown on screen equipment, and the first wireless signal processing module is by having
Line receives audio, video data, and audio, video data is packaged as can be by the packet format of wireless network transmissions, such as cutting network
The modes such as packet size, mark audio-visual synchronization data, audio-video packet is transferred out by wireless module, and finally throwing screen equipment will
The audio/video processing result of wireless receiving is shown on the display module.
In a preferred embodiment of the utility model, the wireless throwing screen relay device further includes being arranged on shell
Reverse Turning Control interface and setting in the intracorporal Reverse Turning Control module of shell, as shown in figure 3, the Reverse Turning Control module and reversed control
Interface processed and the first wireless processing module are attached by wired electronics signal wires.Optionally, the Reverse Turning Control connects
Mouth is USB interface or Type-C interface, and specifically, when video/audio wire uses Type-C interface, this Reverse Turning Control line can be with it
It shares；When video/audio wire is other types, this Reverse Turning Control line can be USB line beam.As shown in figure 3, in the wireless throwing screen
Turning equipment further includes that the intracorporal power module for power supply of shell is arranged in, and the power module is by Reverse Turning Control interface and outside
The connection of portion's power supply, the external power supply are chosen as the power supply or mobile charging power supply of carrier (computer).
In one embodiment of the utility model, when audio input interface, video input interface and Reverse Turning Control interface
When being Type-C interface, as shown in fig. 7, then list can be integrated between the wireless throwing screen relay device and carrier (computer)
The connection of Type-C interface.
In one embodiment of the utility model, a kind of wireless throwing screen system, referring to Fig. 1, the throwing screen are additionally provided
System includes being loaded with the wireless throwing screen transfer that carrier, throwing screen equipment and the embodiment as above wait throw screen content provide to set
It is standby.
Further, the audio output interface of the wireless audio input interface for throwing screen relay device and carrier passes through sound
The video output interface of the connection of frequency interface line, the wireless video input interface for throwing screen relay device and carrier is connect by video
Mouth line connection.
In one embodiment of the utility model, the throwing screen equipment includes display unit and shows for transmitting to it
Second wireless processing module of information, in the case where needing to realize the Reverse Turning Control of Reverse Turning Control module, wirelessly in addition to first
Processing module transmits wirelessly data to the second wireless processing module thrown on screen equipment, further includes that the second wireless processing module is wireless
The first wireless processing module is sent data to, as shown in figure 5, second wireless processing module is set with the wireless throwing screen transfer
The first standby wireless processing module two-way communication link.The process of Reverse Turning Control is referring to fig. 4: throwing screen equipment and passes through the second wireless place
Reason module will be wirelessly transferred control instruction and be sent to the first wireless processing module, and the first wireless processing module is controlled this by wired
System instruction be transmitted to Reverse Turning Control module, after Reverse Turning Control module receives control instruction, be converted to corresponding mouse, keyboard or
Touching instruction, and computer is transferred to by wired mode, computer then responds corresponding mouse, keyboard, touch signal, executes correspondence
Operation.
The throwing screen system of the utility model only needs wired connection relay device on computers, without pacifying on computers
Fill any software, can by interface line will wait throw screen data transmission to relay device, by relay device to data at
After reason, it is wirelessly transmitted to throwing screen equipment, carries out throwing screen broadcasting.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of wireless throw shields relay device, which is characterized in that including shell, the audio input interface being arranged on shell and view
Frequency input interface and setting are described in the intracorporal audio processing modules of shell, video processing module and the first wireless processing module
The input terminal of audio input interface and video input interface be loaded with wait throw screen content carrier be electrically connected,
The output end of the audio input interface with for handle wait throw screen content sound intermediate frequency information audio processing modules it is defeated
Enter end connection, the output end of the video input interface with for handle wait throw screen content in video information video processing module
Input terminal connection,
The output end of the audio processing modules and video processing module is and for will be at the audio processing modules and video
The processing result of reason module is wirelessly sent to the input terminal connection for the first wireless processing module for throwing screen equipment.
2. relay device is shielded in wireless throwing according to claim 1, which is characterized in that further include be arranged in it is reversed on shell
Control interface and setting are wireless in the intracorporal Reverse Turning Control module of shell, the Reverse Turning Control module and Reverse Turning Control interface and first
Processing module is attached by wired electronics signal wires.
3. relay device is shielded in wireless throwing according to claim 2, which is characterized in that the Reverse Turning Control interface connects for USB
Mouth or Type-C interface.
4. relay device is shielded in wireless throwing according to claim 2, which is characterized in that further including setting is used for shell is intracorporal
The power module of power supply, the power module are connect by Reverse Turning Control interface with external power supply.
5. relay device is shielded in wireless throwing according to claim 1, which is characterized in that the audio input interface and video are defeated
Incoming interface be HDMI interface or its be Type-C interface；
The audio input interface and video input interface are mutually independent interface, alternatively, the audio input interface and view
Frequency input interface is integrated into an interface.
6. relay device is shielded in wireless throwing according to claim 1, which is characterized in that the audio input interface is line-
In interface, the video input interface are USB interface or DP interface.
7. relay device is shielded in wireless throwing according to claim 1, which is characterized in that at the audio input interface and audio
It manages module to connect by wired electronics signal wires, the video input interface and video processing module pass through wired e-mail
The connection of number line, the audio processing modules, video processing module pass through wired electronics signal wires and the first wireless processing mould
Block connection.
8. a kind of wireless throwing screen system, which is characterized in that including being loaded with wait throw the carrier for shielding content, throwing screen equipment and as right is wanted
It asks wireless described in any one of 1-7 and throws screen relay device.
9. wireless throwing screen system according to claim 8, which is characterized in that the wireless audio for throwing screen relay device is defeated
The audio output interface of incoming interface and carrier is connected by audio interface line, and the wireless video input for throwing screen relay device connects
Mouth is connect with the video output interface of carrier by video interface line.
10. wireless throwing screen system according to claim 8, which is characterized in that the throwing screen equipment include display unit and
For transmitting the second wireless processing module of display information to it, transfer is shielded in second wireless processing module and the wireless throwing
First wireless processing module two-way communication link of equipment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749064.XU CN209526823U (en) | 2019-05-23 | 2019-05-23 | It is a kind of wirelessly to throw screen relay device and wirelessly throw screen system |
| PCT/CN2020/091992 WO2020233722A1 (en) | 2019-05-23 | 2020-05-25 | Wireless screen projection transfer device and wireless screen projection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920749064.XU CN209526823U (en) | 2019-05-23 | 2019-05-23 | It is a kind of wirelessly to throw screen relay device and wirelessly throw screen system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209526823U true CN209526823U (en) | 2019-10-22 |
Family
ID=68232808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920749064.XU Active CN209526823U (en) | 2019-05-23 | 2019-05-23 | It is a kind of wirelessly to throw screen relay device and wirelessly throw screen system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209526823U (en) |
| WO (1) | WO2020233722A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110798644A (en) * | 2019-10-30 | 2020-02-14 | 深圳市亿联智能有限公司 | Wireless screen-casting conference system based on HDMI signal conversion |
| CN111031368A (en) * | 2019-11-25 | 2020-04-17 | 腾讯科技（深圳）有限公司 | Multimedia playing method, device, equipment and storage medium |
| WO2020233722A1 (en) * | 2019-05-23 | 2020-11-26 | 苏州必捷网络有限公司 | Wireless screen projection transfer device and wireless screen projection system |
| CN112995575A (en) * | 2021-05-13 | 2021-06-18 | 广州朗国电子科技有限公司 | Wireless screen projection transfer device, transfer control method and wireless screen projection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112422586A (en) * | 2020-12-10 | 2021-02-26 | 努比亚技术有限公司 | Computer screen and mobile terminal screen expansion method and expansion system |
| CN113746911A (en) * | 2021-08-26 | 2021-12-03 | 科大讯飞股份有限公司 | Audio processing method and related device, electronic equipment and storage medium |
| CN113934390A (en) * | 2021-09-22 | 2022-01-14 | 青岛海尔科技有限公司 | Reverse control method and device for screen projection |
| CN114501121B (en) * | 2022-01-30 | 2024-05-31 | 深圳创维－Rgb电子有限公司 | Screen projector, screen power supply method and device, screen projector and storage medium |
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| US8608318B2 (en) * | 2009-11-13 | 2013-12-17 | Panasonic Corporation | Wireless projector apparatus and wireless LAN adapter |
| KR20150025584A (en) * | 2013-08-29 | 2015-03-11 | 삼성전자주식회사 | Method for screen sharing and an electronic device |
| CN103595944A (en) * | 2013-11-22 | 2014-02-19 | 惠州华阳通用电子有限公司 | Wi-Fi display switching device and method among terminals |
| US9641467B2 (en) * | 2014-12-01 | 2017-05-02 | Htc Corporation | Intelligent notification filtering method and handheld communication device |
| CN205584412U (en) * | 2016-04-27 | 2016-09-14 | 深圳市金锐显数码科技有限公司 | TV set and pass screen controlling means thereof |
| CN206894811U (en) * | 2017-06-30 | 2018-01-16 | 西安万像电子科技有限公司 | Multimedia overhead projector equipment and multi-media transmission system |
| CN108595137B (en) * | 2018-04-25 | 2021-05-04 | 广州视源电子科技股份有限公司 | Wireless screen projection method and device and screen projector |
| CN108769795B (en) * | 2018-05-31 | 2020-12-25 | 福建星网智慧科技股份有限公司 | Video signal realizing system and method |
| CN109379549A (en) * | 2018-09-18 | 2019-02-22 | 湖州佳格电子科技股份有限公司 | A kind of wireless screen transmission method, equipment and system |
| CN209526823U (en) * | 2019-05-23 | 2019-10-22 | 苏州必捷网络有限公司 | It is a kind of wirelessly to throw screen relay device and wirelessly throw screen system |
-
2019
- 2019-05-23 CN CN201920749064.XU patent/CN209526823U/en active Active
-
2020
- 2020-05-25 WO PCT/CN2020/091992 patent/WO2020233722A1/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020233722A1 (en) * | 2019-05-23 | 2020-11-26 | 苏州必捷网络有限公司 | Wireless screen projection transfer device and wireless screen projection system |
| CN110798644A (en) * | 2019-10-30 | 2020-02-14 | 深圳市亿联智能有限公司 | Wireless screen-casting conference system based on HDMI signal conversion |
| CN111031368A (en) * | 2019-11-25 | 2020-04-17 | 腾讯科技（深圳）有限公司 | Multimedia playing method, device, equipment and storage medium |
| CN112995575A (en) * | 2021-05-13 | 2021-06-18 | 广州朗国电子科技有限公司 | Wireless screen projection transfer device, transfer control method and wireless screen projection system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020233722A1 (en) | 2020-11-26 |
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Denomination of utility model: A wireless screen projection transfer device and wireless screen projection system Effective date of registration: 20230927 Granted publication date: 20191022 Pledgee: Bank of Suzhou Co.,Ltd. Suzhou Xiangcheng sub branch Pledgor: SUZHOU BIJIE NETWORK Co.,Ltd. Registration number: Y2023980058913 |