CN207491104U - A kind of Digital Image Transmission device based on COFDM video speech call double copies - Google Patents
A kind of Digital Image Transmission device based on COFDM video speech call double copies Download PDFInfo
- Publication number
- CN207491104U CN207491104U CN201721704708.0U CN201721704708U CN207491104U CN 207491104 U CN207491104 U CN 207491104U CN 201721704708 U CN201721704708 U CN 201721704708U CN 207491104 U CN207491104 U CN 207491104U
- Authority
- CN
- China
- Prior art keywords
- audio
- module
- call
- video
- digital image
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The utility model is related to a kind of Digital Image Transmission devices based on COFDM video speech call double copies, including live audio drive module, call audio driver module, live audio drive module is connected with video and audio compress module, call audio driver module is connected with call audio compression module, live audio drive module is also connected with the call audio compression module, and call audio compression module is connected with the call voice transmission module for wireless transmission；Call audio driver module is also connected with video and audio compress module, and video and audio compress module is connected with COFDM modulation modules, and COFDM modulation modules are connected with the power amplifier module for wireless transmission.The Digital Image Transmission device can realize the mutual backup of video speech, dispatch call voice, rear end is in decoding process if it find that wherein audio goes wrong all the way, directly spare sound can be played back, thus can improve information transmission reliability during movie and video programs recording, live streaming.
Description
Technical field
It is especially a kind of based on COFDM video speech call double copies the utility model is related to Digital Image Transmission technology
Digital Image Transmission device.
Background technology
It is recorded, during live streaming in movie and video programs, is usually required for being carried out at the same time video wireless transmission and voice scheduling, depending on
Frequency wireless transmission is worked at the same time respectively with voice scheduling by two different wireless systems.Due to video information wireless transmission,
The transmission of voice scheduling information is all using communication, and it is interactional to will appear two wireless systems in practical applications
Problem can cause wireless transmission distance to shorten, and also result in video wireless transmission failure or voice scheduling wireless transmission failure, letter
Breath generate poor reliability, it is impossible to ensure movie and video programs record, live streaming be normally carried out.
Utility model content
The purpose of this utility model is to provide one kind to be based on COFDM（Coded Orthogonal Frequency
Division Multiplexing）The Digital Image Transmission device of video speech call double copies, for solving existing video display section
The problem of information transmission reliability is poor during catalogue system, live streaming.
To solve the above-mentioned problems, the utility model provides a kind of number based on COFDM video speech call double copies
Image transmission, including live audio drive module, call audio driver module, the live audio drive module is connected with
Video and audio compress module, the call audio driver module are connected with call audio compression module, and the live audio drives mould
Block is also connected with the call audio compression module, and the call audio compression module is connected with the call language for wireless transmission
Sound transmission module；The call audio driver module is also connected with the video and audio compress module, the video and audio compress module
COFDM modulation modules are connected with, the COFDM modulation modules are connected with the power amplifier module for wireless transmission.
Digital Image Transmission device provided by the utility model also has following technical characteristic：
Further, it is described call audio driver module include call audio collection module and with the call audio collection
The amplifying circuit that module is connected, the call audio collection module include voice AD sampling A/D chips, the voice AD sampling A/D chips
It is connected with phonetic entry terminal, leading-out terminal and and the video and audio compress module, the leading-out terminal and the amplifying circuit
It is connected, the output terminal of the amplifying circuit is connected with earphone interface module.
Further, the live audio drive module is included at the audio being connected with the audio interface of video capture device
Chip is managed, the audio processing chip is connected with the video and audio compress module, the call voice compression module.
The utility model has the advantages that：By by video follow audio by converse audio compression module into
Row backup, the analogue audio frequency of voice scheduling is backed up by video and audio compress module, and either video and audio compress module is also
It is call audio compression module all audio-frequency informations containing other side, the probability that wherein sound goes wrong all the way can be substantially reduced；It can
Realize the mutual backup of video speech, dispatch call voice, rear end is in decoding process if it find that wherein audio occurs all the way
Problem, can directly play back spare sound, and information transmission is reliable during thus can improving movie and video programs recording, live streaming
Property.
Description of the drawings
Fig. 1 is the functional block diagram of the Digital Image Transmission device of the utility model embodiment；
Fig. 2 is the schematic diagram of the call audio driver module in the utility model embodiment；
Fig. 3 is the structure diagram of amplifying circuit after the call audio DA in the utility model embodiment；
Fig. 4 is the structure diagram of the call earphone interface module in the utility model embodiment；
Fig. 5 is the structure diagram of the live audio drive module in the utility model embodiment.
Specific embodiment
The utility model is described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that not rushing
In the case of prominent, the feature in embodiment and embodiment in the utility model can be combined with each other.
The Digital Image Transmission based on COFDM video speech call double copies of the utility model as shown in Figures 1 to 5
In one embodiment of device, which includes live audio drive module 10, call audio driver module
20, live audio drive module 10 is connected with video and audio compress module 30, and call audio driver module 20 is connected with call audio
Compression module 40, live audio drive module 10 are also connected with call audio compression module 40, and call audio compression module 40 connects
It is connected to the call voice transmission module 50 for wireless transmission；Converse audio driver module 20 also with 30 phase of video and audio compress module
Even, video and audio compress module 30 is connected with COFDM modulation modules 60, and COFDM modulation modules 60 are connected with for wireless transmission
Power amplifier module 70.Video is followed audio to pass through live audio drive module by the Digital Image Transmission device in the embodiment
10 carry out balanced drive output two-way digital audio, and audio output to video and audio compress module 30 carries out compression processing all the way, separately
Digital audio is exported all the way carries out compression processing to call audio compression module 40；The analogue audio frequency of voice scheduling passes through conversation voice
After frequency drive module 20 acquires, audio output carries out compression processing, another way audio output to video and audio compress module 30 all the way
Compression processing is carried out to call audio compression module 40, either video and audio compress module audio-frequency module of still conversing all contains in this way
There is the audio-frequency information of other side, the probability that wherein sound goes wrong all the way can be substantially reduced；Meanwhile video and audio compress module 30 will press
Video stream after contracting gives COFDM modulation modules to carry out Base-Band Processing, is then output to power amplifier module 70 and is amplified and passes through
Antenna is launched；At the same time, call audio compression module 40, which exports compressed data, gives call voice transmission module
50 and pass through antenna and launch, thus can realize the mutual backup of video speech, dispatch call voice, rear end is in decoding process
In if it find that wherein audio goes wrong all the way, directly spare sound can be played back, thus can improve movie and video programs
It records, information transmission reliability during live streaming.
In the above-described embodiments, should also be had based on the Digital Image Transmission device of COFDM video speech call double copies
Following technical characteristic：As shown in Figure 2, Figure 3, Figure 4, call audio driver module 20 includes call audio collection module 21 and with leading to
The connected amplifying circuit 22 of audio collection module 21 is talked about, call audio collection module 21 includes voice AD sampling A/D chips
TLV320AIC12KIDBT and its peripheral circuit, voice AD sampling A/D chips TLV320AIC12KIDBT are connected with phonetic entry terminal
MIC_IN and leading-out terminal 600R_OUT, leading-out terminal 600R_OUT are connected with amplifying circuit 22, the output terminal of amplifying circuit 22
It is connected with earphone interface module 23.
In the above embodiment, it is preferable that as shown in figure 5, live audio drive module 10 includes and video capture device
Audio interface the audio processing chip PCM1082 that is connected, audio processing chip PCM1082 and 30 phase of video and audio compress module
Even.Specifically, audio processing chip PCM1082 is also associated with relevant peripheral circuit.Live audio in examples detailed above is driven
Dynamic model block 10, call audio driver module 20, video and audio compress module 30, call audio compression module 40, call voice transmission
Module 50, COFDM modulation modules 60, power amplifier module 70 etc. are the ordinary skill in the art, conventional design, people in the art
Member can specifically be designed, be selected as needed, as shown in Figures 2 to 5 the circuit knot for the specific embodiment of the application
Structure schematic diagram；The improvement of the application is, will by audio being followed to be backed up by audio compression module of conversing video
The analogue audio frequency of voice scheduling is backed up by video and audio compress module, and either video and audio compress module is still conversed audio
Thus compression module all audio-frequency informations containing other side can substantially reduce the probability that wherein sound goes wrong all the way, realize video
The mutual backup of voice, dispatch call voice improves information transmission reliability during movie and video programs recording, live streaming.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that：
It still can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution
The spirit and scope of scheme.
Claims (3)
1. it is a kind of based on COFDM video speech call double copies Digital Image Transmission device, including live audio drive module,
Call audio driver module, the live audio drive module are connected with video and audio compress module, the call audio driven mould
Block is connected with call audio compression module, which is characterized in that the live audio drive module also with the call audio compression
Module is connected, and the call audio compression module is connected with the call voice transmission module for wireless transmission；The conversation voice
Frequency drive module is also connected with the video and audio compress module, and the video and audio compress module is connected with COFDM modulation modules, institute
It states COFDM modulation modules and is connected with power amplifier module for wireless transmission.
2. Digital Image Transmission device according to claim 1, it is characterised in that：The call audio driver module includes
Call audio collection module and the amplifying circuit being connected with the call audio collection module, the call audio collection module packet
Voice AD sampling A/D chips are included, the voice AD sampling A/D chips are connected with phonetic entry terminal, leading-out terminal and the video and audio pressure
Contracting module, the leading-out terminal are connected with the amplifying circuit, and the output terminal of the amplifying circuit is connected with earphone interface module.
3. Digital Image Transmission device according to claim 2, it is characterised in that：The live audio drive module includes
The audio processing chip being connected with the audio interface of video capture device, the audio processing chip and the video and audio compress mould
Block, the call voice compression module are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704708.0U CN207491104U (en) | 2017-12-11 | 2017-12-11 | A kind of Digital Image Transmission device based on COFDM video speech call double copies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721704708.0U CN207491104U (en) | 2017-12-11 | 2017-12-11 | A kind of Digital Image Transmission device based on COFDM video speech call double copies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207491104U true CN207491104U (en) | 2018-06-12 |
Family
ID=62458054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721704708.0U Expired - Fee Related CN207491104U (en) | 2017-12-11 | 2017-12-11 | A kind of Digital Image Transmission device based on COFDM video speech call double copies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207491104U (en) |
-
2017
- 2017-12-11 CN CN201721704708.0U patent/CN207491104U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101197585B (en) | Wireless ultra-broadband digital multi-microphone system and its audio signal transmission method | |
| CN109785841A (en) | A kind of blue-tooth intelligence equipment voice interactive system and method | |
| CN204669355U (en) | A kind of intercom of tool sound-recording function | |
| CN103905928A (en) | Network voice intercom method, device and system | |
| CN107509092A (en) | Set top box plays method, set top box, terminal and the storage medium of audio in real time | |
| US7603079B2 (en) | Mobile terminal for digital broadcasting reception and method for storing digital broadcasting data | |
| CN105187976B (en) | Mobile terminal and method for amplifying sound based on Bluetooth sound | |
| CN101277338A (en) | Method for recording downstream voice signal of communication terminal as well as the communication terminal | |
| CN204993749U (en) | USB earphone and high -fidelity audio playback system | |
| CN101931816A (en) | Method and system for transferring video from 3G mobile phone to TV | |
| CN103077733A (en) | Audio frequency information recording method and recording device | |
| CN101257603B (en) | Portable terminal apparatus | |
| CN112202956A (en) | Terminal equipment and audio acquisition method thereof | |
| CN105632541A (en) | Method and system for recording audio output by mobile phone, and mobile phone | |
| CN203193859U (en) | Bluetooth audio system with telephone recording function | |
| CN101763874A (en) | Method and system for synchronously playing acoustic images by mobile communication equipment and external equipment | |
| CN207491104U (en) | A kind of Digital Image Transmission device based on COFDM video speech call double copies | |
| CN101990074A (en) | Television with audio playing function | |
| CN101621482A (en) | Audio and video mail box device and realization method | |
| CN1140985C (en) | Circuit and method for recording and reproducing speech and other sounds in digital mobile devices | |
| CN201467263U (en) | Television interactive with mobile phone | |
| CN203193844U (en) | Bluetooth headset with record storage function and vehicle provided with Bluetooth headset with record storage function | |
| CN102332949B (en) | Compass external talker, compass voice communication system and method | |
| CN105120049B (en) | A kind of home gateway and its method for realizing telephonograph | |
| CN209861093U (en) | Active sound box and passive sound box with wired and wireless inner recording and live broadcasting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20211211 |