CN106604099A - Cable television digital set-top box video signal and audio signal wireless transmission device - Google Patents
Cable television digital set-top box video signal and audio signal wireless transmission device Download PDFInfo
- Publication number
- CN106604099A CN106604099A CN201611271921.7A CN201611271921A CN106604099A CN 106604099 A CN106604099 A CN 106604099A CN 201611271921 A CN201611271921 A CN 201611271921A CN 106604099 A CN106604099 A CN 106604099A
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- Prior art keywords
- receiver module
- transmitter module
- module
- transmitter
- top box
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- 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.)
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- 230000005236 sound signal Effects 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 title claims abstract description 11
- 230000008054 signal transmission Effects 0.000 abstract description 8
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000003491 array Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000012360 testing method Methods 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
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- 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
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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)
Abstract
The invention is to provide a cable television digital set-top box video signal and audio signal wireless transmission device to solve the problem of attenuation loss since signal transmission between a cable television digital set-top box and a television display terminal is limited by HDMI cable or AV cable connection, solve the defect that distance between the cable television digital set-top box and the television display terminal cannot be too far and solve the problems that it is not convenient for a device to move daily due to cable connection and it is easy to cause connection fault. Through a millimeter-wave-band 60 GHz frequency-point wireless transmission mode, signal transmission quality is improved, and flexibility, reliability and stability are improved.
Description
Technical field
The present invention relates to cable television digital set-top box technical field, and in particular to a kind of cable television digital set-top box is regarded
The radio transmitting device of frequency signal and audio signal.
Background technology
Cable television digital set-top box is widely used in cable TV network, and it is received after digital television signal, Jing
Output video and audio signal is processed, video display terminal (VDT) is connected to by HDMI cable or AV cables and is realized going back for video/audio
Original is presented.The reasons such as the attenuation loss due to HDMI cable or AV cables, cable television digital set-top box and video display terminal (VDT)
The distance between must not be too far away typically can only within 5 meters, while using wireline cable connection make the daily mobile inconvenience of equipment and
Easily produce failure.
The content of the invention
It is an object of the invention to provide a kind of cable television digital set-top box vision signal and audio signal are wirelessly transferred
Device, to solve to be limited to HDMI cable or AV during signal transmission between cable television digital set-top box and video display terminal (VDT)
The attenuation loss problem of cable connection, solving the distance between cable television digital set-top box and video display terminal (VDT) can not be too
Remote shortcoming, to solve and make the daily mobile inconvenience of equipment using cable connection and easily produce the shortcoming of connecting fault, by milli
VHF band 60GHz Frequency point wireless transmission methods improve signal transmission quality, improve flexibility, reliability and stability.
To realize object above, the present invention is adopted the following technical scheme that：A kind of cable television digital set-top box vision signal
With the radio transmitting device of audio signal, including transmitter module and receiver module；The transmitter module is by transmitter module power supply
POWER, transmitter module input interface HDMI IN, transmitter module USB interface, transmitter module processor 632TX, transmitter module control
Device MCU processed, transmitter module buffer FLASH, transmitter module micro-strip antenna array composition；The receiver module is by receiver module electricity
Source POWER, receiver module output interface HDMI OUT, receiver module USB interface, receiver module processor 632RX, receiver module
Controller MCU, receiver module buffer FLASH, receiver module micro-strip antenna array composition.
In the present invention, the transmitter module input interface HDMI IN and cable television digital set-top box vision signal and sound
The signal source connection of frequency signal, described transmitter module processor 632TX is connected with transmitter module micro-strip antenna array, described
Transmitter module USB interface is connected with transmitter module controller MCU, described transmitter module buffer FLASH and transmitter module control
Device MCU connections processed, described transmitter module controller MCU is connected with transmitter module processor.The receiver module input interface
HDMI OUT are connected with video display terminal (VDT), and described receiver module processor 632RX connects with receiver module micro-strip antenna array
Connect, described receiver module USB interface is connected with receiver module controller MCU, described receiver module buffer FLASH with connect
Module controller MCU connections are received, described receiver module controller MCU is connected with receiver module processor.
In the present invention, the transmitter module power supply POWER has a three-level electromagnetic filter, first order electromagnetic filter, second
Level electromagnetic filter and third level electromagnetic filter are connected in series, and input current medium-high frequency harmonic wave is filtered, and reduce power supply
Impact of the electromagnetic interference to circuit, and provide stable power-supplying to transmitter module；The transmitter module input interface HDMI IN, use
In the connection for including vision signal and audio signal with signal source, its one end connection cable television digital set-top box, the other end connects
Module handler 632TX is penetrated in sending and receiving；The transmitter module USB interface, for the transmitter module processor 632TX, transmitting
The parameter configuration of module controller MCU, transmitter module buffer FLASH；The transmitter module processor 632TX, for logical
The vision signal and audio signal for crossing transmitter module input interface HDMI IN inputs is compressed coding；The transmitter module control
Device MCU processed, the parameter for performing from the input of transmitter module USB interface is configured and controlled to transmitter module processor 632TX
System；The transmitter module buffer FLASH, for storing each of transmitter module processor 632TX and transmitter module controller MCU
Configuration parameter and it is responsible for caching coded data in compression encoding process transmitter module processor 632TX；It is described
Transmitter module micro-strip antenna array, for the signal after transmitter module processor 632TX compressed encodings to be used into millimeter wave
Section 60GHz frequencies carry out wireless transmission；The receiver module power supply POWER has three-level electromagnetic filter, first order em filtering
Device, second level electromagnetic filter and third level electromagnetic filter are connected in series, and input current medium-high frequency harmonic wave is filtered, and subtract
Impact of the small power supply electromagnetic interference to circuit, and provide stable power-supplying to receiver module；The receiver module output interface HDMI
OUT, for receiver module processor 632RX output signals to be connected to into video display terminal (VDT), at its one end connection receiver module
Reason device 632RX, the other end is connected to video display terminal (VDT)；The receiver module USB interface, for receiver module process
Device 632RX, receiver module controller MCU, the parameter configuration of receiver module buffer FLASH；The receiver module processor
632RX, the wireless signal of the millimere-wave band 60GHz frequency for receiving to receiver module micro-strip antenna array carries out decompression solution
Code；The receiver module controller MCU, for performing the parameter being input into from receiver module USB interface to receiving module handler
632RX is configured and controlled；The receiver module buffer FLASH, for storing receiver module processor 632RX and reception
Every configuration parameter of module controller MCU and be responsible for receive module handler 632RX during uncompressed encoding to decoding
Data afterwards are cached；The receiver module micro-strip antenna array, for the millimere-wave band from transmitter module will to be received
60GHz frequency signals, output carries out uncompressed encoding to receiver module processor 632RX.
A kind of beneficial effects of the present invention, there is provided the wireless biography of cable television digital set-top box vision signal and audio signal
Defeated device, to solve to be limited to during signal transmission between cable television digital set-top box and video display terminal (VDT) HDMI cable or
The attenuation loss problem of AV cables connection, solving the distance between cable television digital set-top box and video display terminal (VDT) can not
Too remote shortcoming, to solve and make the daily mobile inconvenience of equipment using cable connection and easily produce the shortcoming of connecting fault, uses
Millimere-wave band 60GHz Frequency point wireless transmission method improves signal transmission quality, improves flexibility, reliability and stablizes
Property, with good research and application development prospect.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is further detailed explanation.
The radio transmitting device structure chart of a kind of cable television digital set-top box vision signals of Fig. 1 and audio signal
The structure chart of Fig. 2 transmitter module power supply POWER and receiver module power supply POWER
Description of reference numerals
In Fig. 1：10. cable television digital set-top box, 11. transmitter module power supply POWER, 12. transmitter module input interfaces
HDMI IN, 13. transmitter module USB interfaces, 14. transmitter module processor 632TX, 15. transmitter module controller MCU, 16.
Penetrate module buffer FLASH, 17. transmitter module micro-strip antenna arrays, 19. transmitter modules, 20. video display terminal (VDT)s, 21. receptions
Modular power source POWER, 22. receiver module input interface HDMI IN, 23. receiver module USB interfaces, 24. receiver module processors
632RX, 25. receiver module controller MCU, 26. receiver module buffer FLASH, 27. receiver module micro-strip antenna arrays, 29.
Receiver module.
Specific embodiment
The specific embodiment of the present invention is given below and accompanying drawing is combined and is illustrated.
As shown in figure 1, the radio transmitting device of a kind of cable television digital set-top box vision signal and audio signal, the dress
Put including transmitter module 19 and receiver module 29；The transmitter module 19 is defeated by transmitter module power supply POWER 11, transmitter module
Incoming interface HDMI IN 12, transmitter module usb 13, transmitter module processor 632TX 14, transmitter module controller MCU
15th, transmitter module buffer FLASH 16, transmitter module micro-strip antenna array 17 are constituted；The receiver module 29 is by receiver module
Power supply POWER 21, receiver module output interface HDMI OUT, receiver module USB interface 23, receiver module processor 632RX
24th, receiver module controller MCU 25, receiver module buffer FLASH 26, receiver module micro-strip antenna array 27 are constituted.
In the present invention, the transmitter module input interface HDMI IN 12 and the vision signal of cable television digital set-top box 10
Connect with the signal source of audio signal, described transmitter module processor 632TX 14 connects with transmitter module micro-strip antenna array 17
Connect, described transmitter module usb 13 is connected with transmitter module controller MCU 15, described transmitter module buffer
FLASH 16 is connected with transmitter module controller MCU 15, described transmitter module controller MCU 15 and transmitter module processor
632TX 14 connects.The receiver module input interface HDMI OUT 22 are connected with video display terminal (VDT) 21, described reception mould
Block processor 632RX 24 is connected with receiver module micro-strip antenna array 27, described receiver module USB interface 23 with receive mould
Block controller MCU 25 connects, and described receiver module buffer FLASH 26 is connected with receiver module controller MCU 25, institute
The receiver module controller MCU 25 for stating is connected with receiver module processor 632RX 24.
In the present invention, the transmitter module power supply POWER 11 has a three-level electromagnetic filter, first order electromagnetic filter,
Two-stage electromagnetic wave filter and third level electromagnetic filter are connected in series, and input current medium-high frequency harmonic wave is filtered, and reduce electricity
Impact of the source electromagnetic interference to circuit, and provide stable power-supplying to transmitter module 19；The transmitter module input interface HDMI IN
12, for being connected with signal source, its one end connection cable television digital set-top box 10, other end connection transmitter module processor
632TX 14；The transmitter module usb 13, for controlling the transmitter module processor 632TX 14, transmitter module
The parameter configuration of device MCU 15, transmitter module buffer FLASH 16；The transmitter module processor 632TX 14, for logical
The vision signal and audio signal for crossing the inputs of transmitter module input interface HDMI IN 12 is compressed coding；The transmitter module
Controller MCU15, the parameter for performing from the input of transmitter module usb 13 is carried out to transmitter module processor 632TX 14
Configuration and control；The transmitter module buffer FLASH 16, for storing transmitter module processor 632TX 14 and transmitting mould
Every configuration parameter of block controller MCU 15 and be responsible for it is right in compression encoding process to transmitter module processor 632TX 14
Coded data is cached；The transmitter module micro-strip antenna array 17, for will be through transmitter module processor 632TX 14
Signal after compressed encoding carries out wireless transmission using millimere-wave band 60GHz frequency；The receiver module power supply POWER 21 has
Three-level electromagnetic filter, first order electromagnetic filter, second level electromagnetic filter and third level electromagnetic filter are connected in series, right
Input current medium-high frequency harmonic wave is filtered, and reduces impact of the powered electromagnetic interference to circuit, and is provided surely to receiver module 29
Fixed power supply；The receiver module output interface HDMI OUT 22, for the output signals of receiver module processor 632RX 24 to be connected
Video display terminal (VDT) 20 is connected to, its one end connects receiver module processor 632RX 24, and the other end is connected to video display terminal (VDT)
20；The receiver module USB interface 23, for the receiver module processor 632RX 24, receiver module controller MCU
25th, the parameter configuration of receiver module buffer FLASH 26；The receiver module processor 632RX 24, for receiver module
The wireless signal of the millimere-wave band 60GHz frequency that micro-strip antenna array 27 is received carries out uncompressed encoding；The receiver module control
Device MCU 25 processed, the parameter for performing from the input of receiver module USB interface 23 is carried out to receiving module handler 632RX 24
Configuration and control；The receiver module buffer FLASH 26, for storing receiver module processor 632RX 24 and receiving mould
Every configuration parameter of block controller MCU 25 and be responsible for receive module handler 632RX 24 it is right during uncompressed encoding
Decoding data is cached；The receiver module micro-strip antenna array 27, for the millimeter wave from transmitter module 19 will to be received
Section 60GHz frequency signals, output carries out uncompressed encoding to receiver module processor 632RX 24.
Specific embodiment
During work, the transmitter module power supply POWER 11 provides stable electricity to all electricity consumption devices of transmitter module 19
Source, transmitter module power supply POWER 11 has three-level electromagnetic filter, first order electromagnetic filter, second level electromagnetic filter and
Three-level electromagnetic filter is connected in series, and input current medium-high frequency harmonic wave is filtered, and reduces powered electromagnetic and disturbs to circuit
Affect, and stable power-supplying is provided to transmitter module 19；The cable television digital set-top box 10 and transmitter module input interface
HDMI IN 12 connect, and the signal of signal source is transferred to transmitter module processor by transmitter module input interface HDMI IN 12
632TX 14；The transmitter module processor 632TX 14, by regarding for being input into by transmitter module input interface HDMI IN 12
Frequency signal and audio signal are compressed coding；The transmitter module micro-strip antenna array 17, will be through transmitter module processor
Signal after the compressed encodings of 632TX 14 carries out wireless transmission using millimere-wave band 60GHz frequency；The transmitter module USB interface
13, to the transmitter module processor 632TX 14, transmitter module controller MCU 15, transmitter module buffer FLASH 16
Parameter configuration；The transmitter module controller MCU 15, perform from transmitter module usb 13 input parameter to transmitter module
Processor 632TX14 is configured and controlled；The transmitter module buffer FLASH 16, stores transmitter module processor
Every configuration parameter of 632TX 14 and transmitter module controller MCU 15 and be responsible for transmitter module processor 632TX 14 is existed
Coded data is cached in compression encoding process；The receiver module power supply POWER 21, provides surely to receiver module 29
Determine power supply, receiver module power supply POWER 21 has three-level electromagnetic filter, first order electromagnetic filter, second level electromagnetic filter
It is connected in series with third level electromagnetic filter, input current medium-high frequency harmonic wave is filtered, reduces powered electromagnetic and disturb to electricity
The impact on road；The receiver module micro-strip antenna array 27 receives the wireless communication of the millimere-wave band 60GHz frequency of transmitter module
Sending receiver module processor 632RX 24 after number to carries out uncompressed encoding；The receiver module output interface HDMI OUT 22,
Receiver module processor 632RX24 output signals are connected to into video display terminal (VDT) 20, its one end connection receiver module processor
632RX 24, the other end is connected to video display terminal (VDT) 20；The receiver module USB interface 23, to receiver module process
Device 632RX 24, receiver module controller MCU 25, the parameter configuration of receiver module buffer FLASH 26；The receiver module
Controller MCU 25, performs from the parameter of the input of receiver module USB interface 23 and matches somebody with somebody to receiving module handler 632RX 24
Put and control；The receiver module buffer FLASH 26, storage receiver module processor 632RX 24 and receiver module control
Every configuration parameter of device MCU 25 and be responsible for receive module handler 632RX 24 during uncompressed encoding to solve yardage
According to being cached.
Test shows：The present invention solves limited during signal transmission between cable television digital set-top box and video display terminal (VDT)
In the attenuation loss problem that HDMI cable or AV cables connect, solve cable television digital set-top box and video display terminal (VDT) it
Between the shortcoming that must not be too far away of distance, to solve and make the daily mobile inconvenience of equipment using cable connection and easily produce connecting fault
Shortcoming, improve signal transmission quality using millimere-wave band 60GHz Frequency point wireless transmission method, improve flexibility, can
By property and stability, with good research and application development prospect.
Claims (2)
1. the radio transmitting device of a kind of cable television digital set-top box vision signal and audio signal, it is characterised in that：It is described
Device includes transmitter module and receiver module；The transmitter module is by transmitter module power supply POWER, transmitter module input interface
HDMI IN, transmitter module USB interface, transmitter module processor 632TX, transmitter module controller MCU, transmitter module buffer
FLASH, transmitter module micro-strip antenna array composition；The receiver module is connect by receiver module power supply POWER, receiver module output
Mouth HDMI OUT, receiver module USB interface, receiver module processor 632RX, receiver module controller MCU, receiver module caching
Device FLASH, receiver module micro-strip antenna array composition；The transmitter module and receiver module adopt transmission of wireless signals mode,
Transmission of wireless signals frequency is the 60GHz frequencies of millimere-wave band.
2. a kind of cable television digital set-top box vision signal according to claim 1 and audio signal are wirelessly transferred dress
Put, it is characterised in that：The transmitter module input interface HDMI IN believe with cable television digital set-top box vision signal and audio frequency
Number delivery outlet connection；Described transmitter module processor 632TX is connected with transmitter module micro-strip antenna array；Described transmitting
Module USB interface is connected with transmitter module controller MCU；Described transmitter module buffer FLASH and transmitter module controller
MCU connects；Described transmitter module controller is connected with transmitter module controller MCU；The receiver module input interface HDMI
OUT is connected with video display terminal (VDT)；Described receiver module processor 632RX is connected with receiver module micro-strip antenna array；Institute
The receiver module USB interface stated is connected with receiver module controller MCU；Described receiver module buffer FLASH and reception mould
Block controller MCU connects；Described receiver module controller is connected with receiver module controller MCU；The transmitter module power supply
POWER has three-level electromagnetic filter, the series connection of first order electromagnetic filter, second level electromagnetic filter and third level electromagnetic filter
Connection；The receiver module power supply POWER has three-level electromagnetic filter, first order electromagnetic filter, second level electromagnetic filter
It is connected in series with third level electromagnetic filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271921.7A CN106604099A (en) | 2016-12-30 | 2016-12-30 | Cable television digital set-top box video signal and audio signal wireless transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611271921.7A CN106604099A (en) | 2016-12-30 | 2016-12-30 | Cable television digital set-top box video signal and audio signal wireless transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106604099A true CN106604099A (en) | 2017-04-26 |
Family
ID=58582375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611271921.7A Pending CN106604099A (en) | 2016-12-30 | 2016-12-30 | Cable television digital set-top box video signal and audio signal wireless transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106604099A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954236A (en) * | 2021-02-22 | 2021-06-11 | 深圳市普洛威电子有限公司 | Wireless docking station system and screen projection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1386479A1 (en) * | 2001-04-24 | 2004-02-04 | Koninklijke Philips Electronics N.V. | Wireless communication point of deployment module for use in digital cable compliant devices |
| CN101388780A (en) * | 2007-09-12 | 2009-03-18 | 英华达（南京）科技有限公司 | System and method for sharing cabled digital program by mobile communication devices |
| CN101489030A (en) * | 2009-02-04 | 2009-07-22 | 杜曦阳 | Portable wireless television playing method applied to wired digital set-top box |
| CN201805521U (en) * | 2010-10-09 | 2011-04-20 | 惠州市德赛视听科技有限公司 | Set top box capable of controlling and processing multi-type television signals |
| CN104244060A (en) * | 2014-09-30 | 2014-12-24 | 英华达（南京）科技有限公司 | Method and device for watching high-definition cable television programs |
| CN206452494U (en) * | 2016-12-30 | 2017-08-29 | 深圳大学 | The radio transmitting device of cable television digital set-top box vision signal and audio signal |
-
2016
- 2016-12-30 CN CN201611271921.7A patent/CN106604099A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1386479A1 (en) * | 2001-04-24 | 2004-02-04 | Koninklijke Philips Electronics N.V. | Wireless communication point of deployment module for use in digital cable compliant devices |
| CN101388780A (en) * | 2007-09-12 | 2009-03-18 | 英华达（南京）科技有限公司 | System and method for sharing cabled digital program by mobile communication devices |
| CN101489030A (en) * | 2009-02-04 | 2009-07-22 | 杜曦阳 | Portable wireless television playing method applied to wired digital set-top box |
| CN201805521U (en) * | 2010-10-09 | 2011-04-20 | 惠州市德赛视听科技有限公司 | Set top box capable of controlling and processing multi-type television signals |
| CN104244060A (en) * | 2014-09-30 | 2014-12-24 | 英华达（南京）科技有限公司 | Method and device for watching high-definition cable television programs |
| CN206452494U (en) * | 2016-12-30 | 2017-08-29 | 深圳大学 | The radio transmitting device of cable television digital set-top box vision signal and audio signal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954236A (en) * | 2021-02-22 | 2021-06-11 | 深圳市普洛威电子有限公司 | Wireless docking station system and screen projection method |
| CN112954236B (en) * | 2021-02-22 | 2021-11-30 | 深圳市普洛威电子有限公司 | Wireless docking station system and screen projection method |
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Application publication date: 20170426 |