CN205566499U - Audio frequency and video binary channels input process circuit and video conferencing equipment thereof - Google Patents
Audio frequency and video binary channels input process circuit and video conferencing equipment thereof Download PDFInfo
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- CN205566499U CN205566499U CN201620211537.7U CN201620211537U CN205566499U CN 205566499 U CN205566499 U CN 205566499U CN 201620211537 U CN201620211537 U CN 201620211537U CN 205566499 U CN205566499 U CN 205566499U
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Abstract
The utility model relates to an electronic circuit technique field, concretely relates to audio frequency and video binary channels input process circuit and video conferencing equipment thereof, the utility model discloses a: audio and video signal input port, the first signal treater, central processing unit, signal conversion treater, the 2nd signal processor, the numeral treater of decoding, audio and video signal input port obtain outside audio and video signal and handle through the the first signal treater after import to the central processing unit in, local audio and video signal is gathered with the camera to this central processing unit control microphone, imports after the processing of the 2nd signal processor to the central processing unit in again, central processing unit need export and send after audio and video signal handles to the numeral treater of decoding, and separate the output of the laggard line display of code conversion. The utility model discloses except handling the broadcast to the audio and video signal that the scene obtained, can also handle the broadcast to the streaming media signal of outside, very big its function of having enriched makes its application scope more extensive.
Description
Technical field
This utility model relates to electronic circuit technology field, is specifically related to a kind of audio frequency and video dual pathways input processing circuit and the video conference device of this audio frequency and video dual pathways input processing circuit of a kind of application。
Background technology
Development along with society, the application of video conference device also becomes increasingly popular, in existing video conference device, it is all to need to first pass through photographic head to obtain on-the-spot audio-video signal to the display packing of audio frequency and video, shown by display screen again after more on-the-spot audio-video signal being processed, it can not play out display to the audio-video signal in outside Streaming Media, and its function is the most single。
Summary of the invention
For overcoming drawbacks described above, the purpose of this utility model is i.e. to provide a kind of audio frequency and video dual pathways input processing circuit and the video conference device of this audio frequency and video dual pathways input processing circuit of a kind of application.
The purpose of this utility model is achieved through the following technical solutions:
This utility model is a kind of audio frequency and video dual pathways input processing circuit, and it is arranged in video conference device, including:
Audio-video signal input port, described audio-video signal input port is attached with outside equipment, for obtaining the first audio-video signal in the streaming media signal that the equipment of outside is inputted, and this first audio-video signal is transmitted with the form of low-voltage differential signal；
First signal processor, described first signal processor connects with described audio-video signal input port, for the first audio-video signal is carried out pretreatment, changes its output format, the frame per second of signal, sample rate；
Central processing unit, described central processing unit connects with the mike in the first signal processor and described video conference device and photographic head respectively, for controlling mike and photographic head, the second on-the-spot audio-video signal is acquired, and the second audio-video signal collected is sent in signal switching processor；And receive through pretreated first, second audio-video signal, further according to the selection control command inputted from first, second audio-video signal, select one of them as output audio-video signal, send to digital decoding processor after output audio-video signal is processed；
Signal switching processor, described signal switching processor is connected with described central processing unit, for changing the second audio-video signal so that it is transmission data speed increases and it is carried out signal amplification；
Secondary signal processor, described secondary signal processor is connected with described signal switching processor and described central processing unit respectively, for the second audio-video signal after conversion is carried out pretreatment, changes its output format, the frame per second of signal, sample rate；
Digital decoding processor, described digital decoding processor is connected with described central processing unit, for output audio-video signal is carried out numeral
/
Analog codec is changed, and the output audio frequency and video after decoded conversion is sent to display.
Further, this utility model also includes:
Signal distributor, described signal distributor is connected between described central processing unit and described digital decoding processor, and described signal distributor synchronizes and consistent output audio-video signal for a road output audio-video signal is distributed into more than two-way；
Audio-video signal output port, described audio-video signal output port is connected with described signal distributor, for exporting output audio-video signal；
Output selection control, described output selection control is connected with described central processing unit, for selecting control command to central processing unit input.
Further, described audio-video signal input port and audio-video signal output port are
HDMI
Digital signal interface.
This utility model one video conference device, including: mike, photographic head, display and audio frequency and video dual pathways input processing circuit as above, described mike, photographic head all connect with the central processing unit in described audio frequency and video dual pathways input processing circuit, and described display connects with the digital decoding processor in described audio frequency and video dual pathways input processing circuit.
Further, this utility model also includes: master control panel, and described output selection control is arranged on described master control panel.
This utility model is in addition to carrying out processing to the audio-video signal that scene obtains and playing, moreover it is possible to carries out processing to outside streaming media signal and plays, enriches its function greatly so that it is the scope of application is more extensive.
Accompanying drawing explanation
For ease of explanation, this utility model is described in detail by following preferred embodiment and accompanying drawing.
Figure
1
Logical structure schematic diagram for one embodiment of this utility model；
Figure
2
Logical structure schematic diagram for another embodiment of this utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further described.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
Refer to figure
1
To figure
2
, this utility model is a kind of audio frequency and video dual pathways input processing circuit, and it is arranged in video conference device, including:
Audio-video signal input port
1
, described audio-video signal input port
1
It is attached with outside equipment, for obtaining the first audio-video signal in the streaming media signal that the equipment of outside is inputted, and this first audio-video signal is transmitted with the form of low-voltage differential signal；
First signal processor
2
, described first signal processor
2
With described audio-video signal input port
1
Connect, for the first audio-video signal is carried out pretreatment, change its output format, the frame per second of signal, sample rate；Video acquisition becomes
YUV422
Video frequency output, audio collection becomes
48Hz PCM
Audio frequency exports；
Central processing unit
3
, described central processing unit
3
Respectively with the first signal processor
2
With the mike in described video conference device
10
And photographic head
11
Connect, be used for controlling mike
10
And photographic head
11
The second on-the-spot audio-video signal is acquired, and the second audio-video signal collected is sent in signal switching processor；And receive through pretreated first, second audio-video signal, further according to the selection control command inputted from first, second audio-video signal, select one of them as output audio-video signal, send to digital decoding processor after output audio-video signal is processed；It will output audio-video signal conversion process video image
RGB
Trichroism brightness, contrast, audio capturing decompose each passage；
Signal switching processor
4
, described signal switching processor
4
With described central processing unit
3
Connect, for the second audio-video signal is changed so that it is transmission data speed increases and it is carried out signal amplification；Described signal switching processor
4
For having the definition of standard high definition
DisplayPort
The data converter of interface can be by computer or high definition playback equipment
DisplayPort
Interface signal is rapidly converted to
VGA
Or
DVI
Or
HDMI
Signal so that its transmission data speed increase；
Secondary signal processor
5
, described secondary signal processor
5
Respectively with described signal switching processor
4
With described central processing unit
3
Connect, for the second audio-video signal after conversion is carried out pretreatment, change its output format, the frame per second of signal, sample rate；Video acquisition becomes
YUV422
Video frequency output, audio collection becomes
48Hz PCM
Audio frequency exports；
Digital decoding processor
6
, described digital decoding processor
6
With described central processing unit
3
Connect, for output audio-video signal is carried out numeral
/
Analog codec is changed, and sends the output audio frequency and video after decoded conversion to display
12
In.Digital decoding processor
6
By numeral
/
Analog-converted, makes output audio-video signal become
R
、
G
、
B
Tricolor signal and row, field sync signal, these signals are transferred to governor circuit by analog signal line
MCU
Carry out differing from feeding and put process, be sent to display
12
Carry out image to show；
Further, this utility model also includes:
Signal distributor
7
, described signal distributor
7
It is connected to described central processing unit
3
With described digital decoding processor
6
Between, described signal distributor
7
Synchronize and consistent output audio-video signal for a road output audio-video signal is distributed into more than two-way；Described signal distributor
7
Can transmit to high-quality HD video and the multichannel audb data of uncompressed, simultaneously without transmitting advance line number at signal
/
Mould or mould
/
Number conversion, it is ensured that the video-audio signal transmission of first water.There is signal damping, amplifying power, support HD video, high-quality, clear, up to
1080p
's
HDTV
Resolution, easily obtains up to
1920x1200
Computer resolution；
Audio-video signal output port
8
, described audio-video signal output port
8
With described signal distributor
7
Connect, for output audio-video signal is exported；
Output selection control
9
, described output selection control
9
With described central processing unit
3
Connect, for central processing unit
3
Input selects control command.Can there is the audio-video signal that two-way source differs in teleconference equipment of the present utility model, a road is from audio-video signal input port
1
The audio-video signal of the outside obtained, another road is the mike from local teleconference equipment
10
And photographic head
11
Acquired audio-video signal, through output selection control between two paths of signals
9
, it is carried out display switching.
Further, described audio-video signal input port
1
With audio-video signal output port
8
It is
HDMI
Digital signal interface；Make the input and output of audio-video signal up to
1080p/60 Hz
,
300-350MB/s
Transmission bandwidth.
This utility model one video conference device, including: mike
10
, photographic head
11
, display
12
With audio frequency and video dual pathways input processing circuit as above, described mike
10
, photographic head
11
All with the central processing unit in described audio frequency and video dual pathways input processing circuit
3
Connect, described display
12
With the digital decoding processor in described audio frequency and video dual pathways input processing circuit
6
Connect.
Further, this utility model also includes: master control panel, described output selection control
9
It is arranged on described master control panel.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model。
Claims (4)
1.A kind of audio frequency and video dual pathways input processing circuit, it is arranged in video conference device, it is characterised in that including:
Audio-video signal input port, described audio-video signal input port is attached with outside equipment, for obtaining the first audio-video signal in the streaming media signal that the equipment of outside is inputted, and this first audio-video signal is transmitted with the form of low-voltage differential signal；
First signal processor, described first signal processor connects with described audio-video signal input port, for the first audio-video signal is carried out pretreatment, changes its output format, the frame per second of signal, sample rate；
Central processing unit, described central processing unit connects with the mike in the first signal processor and described video conference device and photographic head respectively, for controlling mike and photographic head, the second on-the-spot audio-video signal is acquired, and the second audio-video signal collected is sent in signal switching processor；And receive through pretreated first, second audio-video signal, further according to the selection control command inputted from first, second audio-video signal, select one of them as output audio-video signal, send to digital decoding processor after output audio-video signal is processed；
Signal switching processor, described signal switching processor is connected with described central processing unit, for changing the second audio-video signal so that it is transmission data speed increases and it is carried out signal amplification；
Secondary signal processor, described secondary signal processor is connected with described signal switching processor and described central processing unit respectively, for the second audio-video signal after conversion is carried out pretreatment, changes its output format, the frame per second of signal, sample rate；
Digital decoding processor, described digital decoding processor is connected with described central processing unit, for output audio-video signal is carried out numeral
/
Analog codec is changed, and the output audio frequency and video after decoded conversion is sent to display.
2.According to claim 1 Described audio frequency and video dual pathways input processing circuit, it is characterised in that also include:
Signal distributor, described signal distributor is connected between described central processing unit and described digital decoding processor, and described signal distributor synchronizes and consistent output audio-video signal for a road output audio-video signal is distributed into more than two-way；
Audio-video signal output port, described audio-video signal output port is connected with described signal distributor, for exporting output audio-video signal；
Output selection control, described output selection control is connected with described central processing unit, for selecting control command to central processing unit input.
3.According to claim 2 Described audio frequency and video dual pathways input processing circuit, it is characterised in that described audio-video signal input port and audio-video signal output port are HDMI Digital signal interface.
4.A kind of video conference device, it is characterised in that including: mike, photographic head, display and such as claim 1 Extremely 3 Audio frequency and video dual pathways input processing circuit described in any one, described mike, photographic head all connect with the central processing unit in described audio frequency and video dual pathways input processing circuit, and described display connects with the digital decoding processor in described audio frequency and video dual pathways input processing circuit。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211537.7U CN205566499U (en) | 2016-03-18 | 2016-03-18 | Audio frequency and video binary channels input process circuit and video conferencing equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620211537.7U CN205566499U (en) | 2016-03-18 | 2016-03-18 | Audio frequency and video binary channels input process circuit and video conferencing equipment thereof |
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| Publication Number | Publication Date |
|---|---|
| CN205566499U true CN205566499U (en) | 2016-09-07 |
Family
ID=56814074
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|---|---|---|---|
| CN201620211537.7U Expired - Fee Related CN205566499U (en) | 2016-03-18 | 2016-03-18 | Audio frequency and video binary channels input process circuit and video conferencing equipment thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231542A (en) * | 2017-05-04 | 2017-10-03 | 安徽庆睿实业有限责任公司 | Video conferencing system |
| CN107231541A (en) * | 2017-05-04 | 2017-10-03 | 安徽庆睿实业有限责任公司 | Video conference device |
| CN112383574A (en) * | 2021-01-18 | 2021-02-19 | 北京翼辉信息技术有限公司 | Web-based interactive streaming media dual-channel transmission method, system and storage medium |
| CN112399246A (en) * | 2019-08-18 | 2021-02-23 | 海信视像科技股份有限公司 | Sound processing method of display equipment and display equipment |
| WO2023279326A1 (en) * | 2021-07-08 | 2023-01-12 | 深圳爱特天翔科技有限公司 | Audio and video transmission method and apparatus, device and storage medium |
-
2016
- 2016-03-18 CN CN201620211537.7U patent/CN205566499U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231542A (en) * | 2017-05-04 | 2017-10-03 | 安徽庆睿实业有限责任公司 | Video conferencing system |
| CN107231541A (en) * | 2017-05-04 | 2017-10-03 | 安徽庆睿实业有限责任公司 | Video conference device |
| CN112399246A (en) * | 2019-08-18 | 2021-02-23 | 海信视像科技股份有限公司 | Sound processing method of display equipment and display equipment |
| CN112383574A (en) * | 2021-01-18 | 2021-02-19 | 北京翼辉信息技术有限公司 | Web-based interactive streaming media dual-channel transmission method, system and storage medium |
| WO2023279326A1 (en) * | 2021-07-08 | 2023-01-12 | 深圳爱特天翔科技有限公司 | Audio and video transmission method and apparatus, device and storage medium |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160907 Termination date: 20180318 |