CN104539993B - A kind of broadcast high definition television access device and method based on USB transmission of video - Google Patents

A kind of broadcast high definition television access device and method based on USB transmission of video Download PDF

Info

Publication number
CN104539993B
CN104539993B CN201510029648.6A CN201510029648A CN104539993B CN 104539993 B CN104539993 B CN 104539993B CN 201510029648 A CN201510029648 A CN 201510029648A CN 104539993 B CN104539993 B CN 104539993B
Authority
CN
China
Prior art keywords
video
usb
dongle
adapters
connect
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510029648.6A
Other languages
Chinese (zh)
Other versions
CN104539993A (en
Inventor
李建华
潘在友
王斌
王建勋
李海波
黄维
黄武宏
汤敏健
何志贤
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.)
Guangdong Wisdom Radio and Television Internet of Things Technology Co.,Ltd.
Original Assignee
GUANGDONG RADIO AND TELEVISION NETWORK 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 GUANGDONG RADIO AND TELEVISION NETWORK CO Ltd filed Critical GUANGDONG RADIO AND TELEVISION NETWORK CO Ltd
Priority to CN201510029648.6A priority Critical patent/CN104539993B/en
Publication of CN104539993A publication Critical patent/CN104539993A/en
Application granted granted Critical
Publication of CN104539993B publication Critical patent/CN104539993B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41Structure of client; Structure of client peripherals
    • H04N21/426Internal components of the client ; Characteristics thereof
    • H04N21/42607Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61Network physical structure; Signal processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

The invention discloses a kind of broadcast high definition television access device and method based on USB transmission of video, during work, IP request datas are converted into usb data by TV Dongle adapters first, and home gateway is sent to through USB transmission interface;Then it is IP request datas by the usb data translation resolution after home gateway receives the usb data by USB transmission interface, and is interacted according to the IP request datas with the completion of radio and television front-end platform, obtains corresponding video data;Then after video data is carried out IP encapsulation by home gateway, USB video datas are reconverted into, and TV Dongle adapters are sent to through USB transmission interface;The USB video datas are converted to IP video datas by last TV Dongle adapters, are played out after parsing.One aspect of the present invention saves the cost of TV Dongle adapters configuration independent current source;On the other hand, signal transmission is more stablized compared to wireless mode, is not easily susceptible to the influence of indoor environment, can guarantee the smooth transmission of the HD video of radio and television grade.

Description

A kind of broadcast high definition television access device and method based on USB transmission of video
Technical field
The present invention relates to a kind of broadcast high definition television access devices and method based on USB transmission of video.
Background technology
At present, TV Dongle adapters in the market generally all realize power supply, and pass through by independent power supply adaptor It is not need to that WIFI module, which connect the advantages of realizing data transmission, video data transmission is carried out using WIFI module with home gateway, Additional wiring, but cost is higher, and occupies massive band width, and signal quality is easily affected by environment, leads to the video of transmission Jitter.
In addition, increasing with broadcasting and TV business, the business such as video on demand, high definition television, broadband access network are in rapid growth Situation, if any business all WIFI modules through home gateway are transferred to each terminal, the load of WIFI module certainly will increase, can Can be in the presence of being unable to stand, so as to influence the business experience of terminal.
And as smart home device is also more and more, such as set by central controller and each electricity consumption in family It is standby to be attached, instruction realization is sent to the control of each electrical equipment by central controller or utilizes existing family Gateway realizes the connection with each electrical equipment, and electrical equipment is sent a command to by home gateway.Under existing framework, family Front yard gateway carries out data interaction by wireless communication mode and electrical equipment, some require to set than relatively low electricity consumption to data volume It is standby, it can meet the requirements substantially through the above way.But when home gateway is toward smart television real-time transmission of video information, video The data volume of information is bigger, often occupies bigger bandwidth, causes home gateway cannot be effectively toward other electrical equipments Data interaction is carried out, the situation of remote control failure is caused to occur, operates understable property.In addition, home gateway and smart television Between wirelessly transmit signal, influenced by indoor environment, home gateway be also difficult to toward smart television transmit high quality Vision signal, the vision signal of high quality is often in wireless transmissions by the larger interference of indoor environment.
Invention content
It is high that the present invention provides a kind of a kind of reliable and stable, strong antijamming capability the broadcast based on USB transmission of video of transmission Clear TV access device and method.
Broadcast high definition television access device of the present invention based on USB transmission of video, including home gateway and TV Dongle adapters, home gateway and TV Dongle adapters are both provided with USB transmission interface, and TV Dongle adapters pass through The USB transmission interface is connect with home gateway.
Broadcast high definition television cut-in method of the present invention based on USB transmission of video, using above-mentioned access device, Include the following steps,
IP request datas are converted into usb data, and be sent to through USB transmission interface by step 1, TV Dongle adapters Home gateway;
After step 2, home gateway receive the usb data by USB transmission interface, it is by the usb data translation resolution IP request datas, and interacted according to the IP request datas with the completion of radio and television front-end platform, obtain corresponding video data;
After video data is carried out IP encapsulation by step 3, home gateway, USB video datas are reconverted into, and through USB transmission Interface is sent to TV Dongle adapters;
The USB video datas are converted to IP video datas by step 4, TV Dongle adapters, are played out after parsing.
The broadcast high definition television access device and method based on USB transmission of video of the present invention, including home gateway and TV Dongle adapters, home gateway and TV Dongle adapters are both provided with USB transmission interface, and when use only need to be by TV The USB transmission interface of Dongle adapters and the USB transmission interface connection of home gateway can realize the transmission of video.Work When, IP request datas are converted into usb data by TV Dongle adapters first, and home network is sent to through USB transmission interface It closes;Then it is IP number of requests by the usb data translation resolution after home gateway receives the usb data by USB transmission interface According to, and interacted according to the IP request datas with the completion of radio and television front-end platform, obtain corresponding video data;Home gateway will After video data carries out IP encapsulation, USB video datas are reconverted into, and TV Dongle adaptations are sent to through USB transmission interface Device;The USB video datas are converted to IP video datas by last TV Dongle adapters, are played out after parsing.The present invention's Intelligent home control device and method based on television network broadcast home gateway, TV Dongle adapters are connect by USB transmission On the one hand mouth and home gateway through the USB transmission interface by home gateway can be realized and powered that removing TV Dongle adapters from needs The trouble of independent current source module is equipped with, saves the cost of configuration independent current source;On the other hand, through the USB transmission interface with Home gateway transmitting video data, without occupying the bandwidth of home gateway, and signal is more stablized compared to wireless way for transmitting, no It is vulnerable to the influence of indoor environment, the HD video of radio and television grade can more effectively avoid letter through USB transmission interface transmission It number is interfered in transmission process, the distortion of signal is reduced, to ensure that user can watch good HD video.
In addition, the broadcast high definition television access device of the present invention based on USB transmission of video, include in home gateway Power module, control chip, CM modules, WIFI module, Zigbee wireless modules;Power module, input termination alternating current, Output terminal is connect respectively with control chip, CM modules, WIFI module, Zigbee wireless modules, in order to control chip, CM modules, WIFI module, Zigbee wireless modules provide operating voltage;CM modules, first line of a couplet radio and television bilateral network, output terminal and control Coremaking piece first input end connects, and to receive the interactive information that external CHINA RFTCOM Co Ltd end is sent, and the signal is transmitted To control chip;WIFI module, signal receiving end is with controlling the second input terminal of chip to connect, signal sending end and control core The second output terminal connection of piece, to receive and dispatch the signal of mobile terminal;Zigbee wireless modules, signal receiving end and control The third input terminal connection of chip, signal sending end is with controlling the third output terminal of chip to connect, to receive and dispatch electrical equipment Signal;The first output terminal of chip and the USB transmission interface of home gateway is controlled to connect.
The broadcast high definition television access device based on USB transmission of video of the present invention includes power supply mould in home gateway Block, control chip, CM modules, WIFI module, Zigbee wireless modules;The output terminal of CM modules is inputted with control chip first End connection, controls the first output terminal of chip to be connect with the input terminal of Zigbee wireless modules, is transmitted by USB transmission interface Audio-video signal to TV Dongle adapters, the signal receiving end of WIFI module connects with the second input terminal of chip is controlled to connect The control instruction being transmitted across by mobile terminal device is received, and is sent to home gateway module;The signal sending end of WIFI module with The second output terminal connection of chip is controlled, the control instruction that chip is sent will be controlled to be sent to mobile terminal, realizes and moves The information exchange of dynamic terminal;It is connect by Zigbee wireless modules with electrical equipment, realizes the instruction interaction with electrical equipment. The broadcast high definition television access device based on USB transmission of video of the present invention, is connect with mobile terminal by WIFI module, passed through Zigbee wireless modules are connect with electrical equipment, and audio-video signal is then transmitted to TV Dongle adaptations by USB transmission interface Device, control instruction and audio-video signal are transmitted respectively by a plurality of different communication link, will not generate punching between each other Prominent, audio-video signal will not occupy the bandwidth of home gateway wireless transmission, and often data volume is all smaller for control instruction, because Even if this is smaller in bandwidth, the broadcast high definition television access device of the invention based on USB transmission of video also can Ensure that control instruction effectively transmits, realize that the access device is realized reliable and stablely and electrical equipment is controlled.In addition, audio and video Signal is transmitted by USB transmission interface, can more effectively resist the influence of indoor environment, and antijamming capability is stronger, ensures video Signal can transmit in high quality.The broadcast high definition television access device based on USB transmission of video of the present invention, in processing broadcasting and TV Video on demand, high definition television, broadband access network when multiple business, the video datas such as high-definition television program can connect through USB transmission Oral instructions are handed to TV Dongle adapters, so as to play on TV, on the one hand can ensure that video data transmits in high quality, subtracts Few distortion;On the other hand it can mitigate the burden of WIFI module, so as to which the data for ensureing broadcasting and TV broadband services can be transmitted glibly To each terminal, to ensure that terminal possesses good business experience, each broadcasting and TV business is also transmitted from different communication channels, real Existing isolation of the different broadcasting and TV business in transmission process can also avoid generating interference between each other, and the data of broadcasting and TV business are passing It is also just more secure when passing, it is not easily susceptible to influence.
Description of the drawings
Fig. 1 is a kind of structure diagram one of the broadcast high definition television access device based on USB transmission of video.
Fig. 2 is a kind of flow diagram of the broadcast high definition television cut-in method based on USB transmission of video.
Fig. 3 is a kind of structure diagram two of the broadcast high definition television access device based on USB transmission of video.
Specific embodiment
A kind of broadcast high definition television access device based on USB transmission of video as shown in Figure 1, 2, including home gateway and TV Dongle(Smart television stick)Adapter, home gateway and TV Dongle adapters are both provided with USB transmission interface, TV Dongle adapters are connect by the USB transmission interface with home gateway.Include video in TV Dongle adapters and handle core Piece, the signal transmission end of video frequency processing chip are connect with the USB transmission interface of TV Dongle adapters.The control of home gateway The video frequency processing chip of chip and TV Dongle adapters is both provided with IP and usb data modular converter.During work, TV The video data that Dongle adapters are wanted to obtain program A plays out, first please by the IP of program A by TV Dongle adapters Seek data(abc)Usb data (ABC) is converted into, and home gateway is sent to through USB transmission interface;Then home gateway passes through It is IP request datas by usb data (ABC) translation resolution after USB transmission interface receives the usb data (ABC)(abc), And end equipment obtains the video data of corresponding program A forward according to the IP request datas;Then the general that home gateway receives After the video data of program A carries out IP encapsulation, USB video datas are reconverted into, and TV is sent to through USB transmission interface Dongle adapters;The USB video datas are converted to IP video datas by last TV Dongle adapters, are broadcast after parsing It puts.
As shown in figure 3, in addition in home gateway include power module, control chip, CM modules, WIFI module, Zigbee wireless modules;The output terminal of CM modules with control chip first input end connect, control chip the first output terminal and The input terminal connection of Zigbee wireless modules transmits audio-video signal to TV Dongle adapters by USB transmission interface, The signal receiving end of WIFI module receives the control being transmitted across by mobile terminal device with the second input terminal of chip is controlled to connect Instruction, and it is sent to home gateway module;The signal sending end of WIFI module will be controlled with the second output terminal of chip is controlled to connect The control instruction that coremaking piece is sent is sent to the mobile terminals such as mobile phone, IPAD, the mobile terminals such as realization and mobile phone, IPAD Information exchange;It is connect by the electrical equipments such as Zigbee wireless modules and air-conditioning, electric light, realization is set with electricity consumptions such as air-conditioning, electric lights Standby instruction interaction.The broadcast high definition television access device based on USB transmission of video of the present invention, passes through WIFI module and hand The mobile terminals such as machine, IPAD connect, and are connect by the electrical equipments such as Zigbee wireless modules and air-conditioning, electric light, audio-video signal TV Dongle adapters are then transmitted to by USB transmission interface, control instruction and audio-video signal are respectively by a plurality of different Communication link is transmitted, and will not generate conflict between each other, and audio-video signal will not occupy home gateway wireless transmission Bandwidth, and often data volume is all smaller for control instruction, therefore even if smaller in bandwidth, it is of the invention based on USB The broadcast high definition television access device of transmission of video can also ensure that control instruction effectively transmits, and realize that the access device is reliable It steadily realizes and electrical equipment is controlled.In addition, audio-video signal is transmitted by USB transmission interface, room can be more effectively resisted The influence of interior environment, antijamming capability is stronger, ensures that vision signal can be transmitted in high quality, realizes the high definition of radio and television grade Video service, so that user can watch good video frequency program.The access device is handling the video on demand of broadcasting and TV, high definition When multiple business, the video datas such as high-definition television program can be transferred to TV through USB transmission interface for TV, broadband access network Dongle adapters so as to play on TV, on the one hand can ensure that video data transmits in high quality, reduce distortion;It is another Aspect can mitigate the burden of WIFI module, so as to which the data for ensureing broadcasting and TV broadband services can be transferred to each terminal glibly, To ensure that each terminal possesses good business experience, each broadcasting and TV business is also transmitted from different communication channels, is realized different Isolation of the broadcasting and TV business in transmission process can also avoid generating interference between each other, and the data of broadcasting and TV business are when transmitting It is just more secure, it is not easily susceptible to influence, while also solve that family multiple terminals is broadcast live, program request audio and video are watched, data are wide The problem of band accesses and is shared improves the Experience Degree of user.

Claims (3)

1. a kind of broadcast high definition television access device based on USB transmission of video, it is characterised in that:Including home gateway and TV Dongle adapters, home gateway and TV Dongle adapters are both provided with USB transmission interface, and TV Dongle adapters pass through The USB transmission interface is connect with home gateway;The control chip of home gateway and the video frequency processing chip of TV Dongle adapters It is both provided with IP and usb data modular converter;
Include power module, control chip, CM modules, WIFI module, Zigbee wireless modules in the home gateway;Power supply Module, input termination alternating current, output terminal connect respectively with control chip, CM modules, WIFI module, Zigbee wireless modules It connects, chip, CM modules, WIFI module, Zigbee wireless modules provide operating voltage in order to control;CM modules, first line of a couplet broadcast electricity View network, output terminal are connect with control chip first input end, to receive the interaction letter that external CHINA RFTCOM Co Ltd end is sent Breath, and transmit the signal to control chip;WIFI module, signal receiving end are connect with the second input terminal of control chip, Signal sending end is with controlling the second output terminal of chip to connect, to receive and dispatch the signal of mobile terminal;Zigbee wireless modules, With the third input terminal of chip is controlled to connect, signal sending end is connect its signal receiving end with the third output terminal of control chip, To receive and dispatch the signal of electrical equipment;First output terminal of control chip is connect with the input terminal of Zigbee wireless modules, is passed through USB transmission interface transmits audio-video signal to TV Dongle adapters.
2. the broadcast high definition television access device according to claim 1 based on USB transmission of video, it is characterised in that:TV Include video frequency processing chip, the signal transmission end of video frequency processing chip and the USB of TV Dongle adapters in Dongle adapters Coffret connects.
3. a kind of broadcast high definition television cut-in method based on USB transmission of video, using access device described in claim 1, It is characterized in that:Include the following steps,
IP request datas are converted into usb data, and be sent to family through USB transmission interface by step 1, TV Dongle adapters Gateway;
It, please for IP by the usb data translation resolution after step 2, home gateway receive the usb data by USB transmission interface Data are sought, and are interacted according to the IP request datas with the completion of radio and television front-end platform, obtain corresponding video data;
After video data is carried out IP encapsulation by step 3, home gateway, USB video datas are reconverted into, and through USB transmission interface It is sent to TV Dongle adapters;
The USB video datas are converted to IP video datas by step 4, TV Dongle adapters, are played out after parsing;
Include power module, control chip, CM modules, WIFI module, Zigbee wireless modules in the home gateway;Power supply Module, input termination alternating current, output terminal connect respectively with control chip, CM modules, WIFI module, Zigbee wireless modules It connects, chip, CM modules, WIFI module, Zigbee wireless modules provide operating voltage in order to control;CM modules, first line of a couplet broadcast electricity View network, output terminal are connect with control chip first input end, to receive the interaction letter that external CHINA RFTCOM Co Ltd end is sent Breath, and transmit the signal to control chip;WIFI module, signal receiving end are connect with the second input terminal of control chip, Signal sending end is with controlling the second output terminal of chip to connect, to receive and dispatch the signal of mobile terminal;Zigbee wireless modules, With the third input terminal of chip is controlled to connect, signal sending end is connect its signal receiving end with the third output terminal of control chip, To receive and dispatch the signal of electrical equipment;First output terminal of control chip is connect with the input terminal of Zigbee wireless modules, is passed through USB transmission interface transmits audio-video signal to TV Dongle adapters.
CN201510029648.6A 2015-01-21 2015-01-21 A kind of broadcast high definition television access device and method based on USB transmission of video Active CN104539993B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510029648.6A CN104539993B (en) 2015-01-21 2015-01-21 A kind of broadcast high definition television access device and method based on USB transmission of video

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510029648.6A CN104539993B (en) 2015-01-21 2015-01-21 A kind of broadcast high definition television access device and method based on USB transmission of video

Publications (2)

Publication Number Publication Date
CN104539993A CN104539993A (en) 2015-04-22
CN104539993B true CN104539993B (en) 2018-06-22

Family

ID=52855434

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510029648.6A Active CN104539993B (en) 2015-01-21 2015-01-21 A kind of broadcast high definition television access device and method based on USB transmission of video

Country Status (1)

Country Link
CN (1) CN104539993B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105187946A (en) * 2015-09-18 2015-12-23 深圳创维数字技术有限公司 Multi-mode TV signal receiving method and digital TV receiving terminal
CN105898492A (en) * 2015-11-27 2016-08-24 乐视致新电子科技(天津)有限公司 Intelligent television USB data receiving interface and method
CN105792019B (en) * 2016-03-14 2018-12-21 贵州省广播电视信息网络股份有限公司 A kind of intelligent radio wideband network terminal applied to Cable Digital TV Network
CN110913269B (en) * 2019-11-28 2021-08-24 山东云缦智能科技有限公司 Method for realizing wireless connection between dongle device of set top box and Linux terminal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103179029A (en) * 2013-03-26 2013-06-26 深圳市同洲电子股份有限公司 Wireless home multimedia gateway
CN203261431U (en) * 2013-03-26 2013-10-30 深圳市同洲电子股份有限公司 High-definition hub
CN204334852U (en) * 2015-01-21 2015-05-13 广东省广播电视网络股份有限公司 A kind of broadcast HDTV (High-Definition Television) access device based on USB transmission of video

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103179029A (en) * 2013-03-26 2013-06-26 深圳市同洲电子股份有限公司 Wireless home multimedia gateway
CN203261431U (en) * 2013-03-26 2013-10-30 深圳市同洲电子股份有限公司 High-definition hub
CN204334852U (en) * 2015-01-21 2015-05-13 广东省广播电视网络股份有限公司 A kind of broadcast HDTV (High-Definition Television) access device based on USB transmission of video

Also Published As

Publication number Publication date
CN104539993A (en) 2015-04-22

Similar Documents

Publication Publication Date Title
CN106328046B (en) LED display drive control method
CN205356613U (en) Sound video sending , receive and share equipment
CN104539993B (en) A kind of broadcast high definition television access device and method based on USB transmission of video
CN107950036B (en) Audio bar for controlling wireless speakers
CN102098558B (en) Three-network convergence digital television (TV) set top box and implementation method thereof
CN103442207A (en) Stage dispatching video monitoring system based on IP networking
CN104683863A (en) Method and equipment for multimedia data transmission
CN103986948A (en) Three-network integrated dual-mode intelligent set top box
CA2890918C (en) Methods and apparatus for dynamic volume punch-through
CN104185034A (en) Apparatus having functions of multi-screen interaction management, network communication, and video output
CN103024442A (en) Family stream media server based on digital television network
CN103916694A (en) Broadcast source processing method and device
CN101990123B (en) Set top box device and method for realizing triple play function
CN204334852U (en) A kind of broadcast HDTV (High-Definition Television) access device based on USB transmission of video
CN204539375U (en) A kind of intelligent home control device based on television network broadcast home gateway
CN204046750U (en) A kind of video playback box
US20150349974A1 (en) Smart home access device
CN102223488A (en) One-household multi-television viewing system of digital television STB (Set Top Box)
CN110234006B (en) Remote television selection feedback system
CN104053041A (en) Multi-television service system based on home network
CN103780953A (en) Multimedia signal transmission method and system
CN110248131A (en) A kind of throwing screen device and conference system being modeled to USB camera
CN109218784A (en) TV set-top box device with router feature
CN203859842U (en) Telecommunication network, internet, broadcast network integrated dual mode intelligent set top box
CN204795080U (en) Spectral analysis network "Residential gateway"

Legal Events

Date Code Title Description
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20240618

Address after: 511458 Room 3401, No. 17, the Pearl River West Road, Tianhe District, Guangzhou City, Guangdong Province (self prepared) (not for plant use) (only for office use)

Patentee after: Guangdong Wisdom Radio and Television Internet of Things Technology Co.,Ltd.

Country or region after: China

Address before: 35/F, Guangsheng International Building, No. 17, the Pearl River West Road, Tianhe District, Guangzhou, Guangdong 510000

Patentee before: GUANGDONG RADIO AND TELEVISION NETWORK Co.,Ltd.

Country or region before: China