CN207124649U - Multitone video call device shares the communication system of audio signal - Google Patents
Multitone video call device shares the communication system of audio signal Download PDFInfo
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- CN207124649U CN207124649U CN201721216509.5U CN201721216509U CN207124649U CN 207124649 U CN207124649 U CN 207124649U CN 201721216509 U CN201721216509 U CN 201721216509U CN 207124649 U CN207124649 U CN 207124649U
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- telephone equipment
- reception signals
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Abstract
The utility model provides the communication system that a kind of multitone video call device shares audio signal, belongs to the communications field.Communication system of the present utility model may include N number of voice and video telephone equipment, there are two or more identical audio signal interfaces in each voice and video telephone equipment, N number of voice and video telephone equipment is connected two-by-two by audio signal interface respectively, connected between all voice and video telephone equipment with a kind of audio cable, all voice and video telephone equipment can pass through the communication link and other communication apparatus communications of one of voice and video telephone equipment.The beneficial effects of the utility model are：Effectively realize the signal interconnection between more audio-visual conference devices and share, the loudspeaker and microphone of distinct device will not form sound feedback loop, and connection is simple, and connection quantity is unrestricted.
Description
Technical field
The communications field is the utility model is related to, more particularly to a kind of multitone video call device shares the communication of audio signal
System.
Background technology
Currently used communication terminal device product such as telephone set, mobile phone, and connection computer, smart machine etc. enter
The audio ＆ video equipment of row audio/video communication product such as omnidirectional microphone, USB conference telephones, all it is unit work.
Every equipment uses an independent communication line, possesses a set of independent microphone and loudspeaker, between distinct device
It is connected with each other and designs without calling outgoing audio, though or there are interconnection or shared design, connection method to be different from this method, have
Connection scheme only connects a kind of signal in microphone or loudspeaker.
Original equipment two or multiple devices can not use same line traffic simultaneously, or be connected in parallel on the same line
When hand-free call is used on road, the loudspeaker and microphone of distinct device can form sound loop, trigger self-excitation to utter long and high-pitched sounds, thus can not
It is normally carried out voice communication.
Conference applications occasion and some other special task occasion, same place need more people and use same order wire
Converse on road.Although with Digital Signal Processing（DSP）Hands-free talking device can accomplish it is relatively good hands-free logical
Talk about effect, can meet the needs of more people call, but the people to attend a meeting from microphone and loudspeaker farther out when, still can listen not
Clear speaker sound, microphone radio reception effect there is also it is undesirable the problem of.
Although some products provide multimachine cooperation method, but a kind of some only letters in shared microphone or loudspeaker
Number, or not as this method connect it is easy to use, its connect quantity it is also restrained.
Utility model content
To solve the problems of the prior art, the utility model provides a kind of multitone video call device and shares audio signal
Communication system.
The utility model communication system includes N number of voice and video telephone equipment, have in each voice and video telephone equipment two or
The identical audio signal interface of two or more, N number of voice and video telephone equipment are connected two-by-two by audio signal interface respectively,
Connected between all voice and video telephone equipment using a kind of audio cable, all voice and video telephone equipment can be by one of them
The communication link of voice and video telephone equipment and other communication apparatus communications.
The utility model is further improved, and the audio cable includes being used to connect what N number of voice-frequency telephony equipment shared
Calling signaling interfacing transmission line, microphone reception signals interface circuit and power line, N number of voice and video telephone equipment can pass through calling
Signaling interfacing transmission line shares the calling signal of one of equipment；The microphone reception signals of N number of voice and video telephone equipment are added
After can be by microphone reception signals interface circuit, by the communication link and other equipment of one of voice and video telephone equipment
Communication；N number of voice and video telephone equipment can share a power supply by power line.
The utility model is further improved, and the voice and video telephone equipment includes calling signal processing circuit and microphone
Reception signals process circuit, the calling signal of the voice and video telephone equipment of more than 1 are attempted by by calling signal processing circuit
On calling signaling interfacing transmission line；The microphone reception signals of the voice and video telephone equipment of more than 1 pass through microphone reception signals
Process circuit is attempted by microphone signal interface circuit.
The utility model is further improved, and the voice and video telephone equipment calling signal processing module includes first resistor
With the first amplifier, the calling signal of this voice and video telephone equipment and the calling signal of other voice and video telephone equipment, by the
One resistance is connected to calling signaling interfacing transmission line, after addition, passes through all audio frequency and video after the first amplifier carries out power amplification
The loudspeaker output of verbal system.
The utility model is further improved, and the voice and video telephone equipment microphone reception signals processing module includes the
Two resistance and the second amplifier, the microphone reception signals of this voice and video telephone equipment and the Mike of other voice and video telephone equipment
Wind reception signals, microphone reception signals interface circuit is connected to by second resistance, after addition, led to through one of audio frequency and video
Talk about the communication link and other communication apparatus communications of equipment.
The utility model is further improved, and each voice-frequency telephony equipment connects provided with two identical audio signals
Mouthful, the signal of each audio signal interface transmission includes calling signal and microphone reception signals, an audio signal of equipment 1
Interface is connected by audio cable with an audio signal interface of equipment 2, and another audio signal interface of equipment 2 passes through sound
Frequency cable is connected with an audio signal interface of equipment 3, the like, until N number of voice-frequency telephony equipment passes through audio cable
It is connected two-by-two.
Compared with prior art, the beneficial effects of the utility model are：Effectively realize signal interconnection between multiple devices and
Shared, the loudspeaker and microphone of distinct device will not form sound feedback loop, and connection is simple, and connection quantity is unrestricted.It is more
Platform apparatus interconnection realizes distribution and adopts sound and playback, be advantageous to more people participate in jointly call when, different call participants can
So that closer to loudspeaker and microphone, so as to which that listens becomes apparent from, that says also becomes apparent from, and realizes good call experience.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model circuit block diagram；
Fig. 3 is the utility model circuit theory diagrams；
Fig. 4 is microphone reception signals equivalent circuit schematic in Fig. 3；
Fig. 5 is calling signal equivalent circuit schematic in Fig. 3.
Embodiment
The utility model is described in further details with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model communication system includes N number of voice and video telephone equipment（Abbreviation equipment）, each sound regards
Frequency verbal system is provided with two identical audio signal interfaces, the signal bag that can be transmitted in each audio signal interface
Containing signals such as calling, outgoing, power supply and ground.
N number of voice and video telephone equipment is connected two-by-two by audio signal interface respectively, and all voice and video telephone equipment pass through
Audio signal interface shares an audio cable.Specifically, the second audio signal interface of equipment 1 passes through data wire and equipment 2
The first audio signal interface be connected, the second audio signal interface of equipment 2 passes through data wire and the first audio signal of equipment 3
Interface is connected, the like, until N number of voice-frequency telephony equipment is connected two-by-two by audio cable.In addition, equipment 1 to equipment N all
Including the communication interface to be communicated with other equipment, when one of equipment is by communication interface and other communication apparatus communications,
Other all equipment can pass through the equipment common user communication link and other communication apparatus communications.
Certainly, the audio signal interface of each voice and video telephone equipment of this example is it can also be provided that more than 2, Duo Geyin
Video call device integrally forms chrysanthemum formula communication link.But above-mentioned connection on condition that, each two equipment room only has a sound
Frequency cable connects.In every audio cable, most basic situation only needs calling, outgoing and three kinds of ground signal wire, if necessary may be used
Add power line and other signal wires.
As shown in Fig. 2 the audio cable includes calling signaling interfacing transmission line, the wheat that N number of voice and video telephone equipment shares
Gram wind reception signals interface circuit and power signal line, N number of voice and video telephone equipment can be total to by calling signaling interfacing transmission line
With the calling signal of one of equipment；The microphone reception signals of N number of voice and video telephone equipment can pass through Mike after being added
Wind reception signals interface circuit, by communication link and other communication apparatus communications of one of voice and video telephone equipment；N number of sound
Video call device can share a power supply by power line.
The voice and video telephone equipment includes calling signal processing circuit and microphone reception signals process circuit, wherein, 1
The calling signal of voice and video telephone equipment more than individual is attempted by calling signaling interfacing transmission line by calling signal processing circuit；
The microphone reception signals of the voice and video telephone equipment of more than 1 are attempted by microphone by microphone reception signals process circuit
On signaling interfacing transmission line.
Specifically, the voice and video telephone equipment calling signal processing module includes first resistor and the first amplifier, this
The calling signal of voice and video telephone equipment and the calling signal of other voice and video telephone equipment, calling is connected to by first resistor
Signaling interfacing transmission line, it is defeated by the loudspeaker of all voice and video telephone equipment after the first amplifier carries out power amplification after addition
Go out.
The voice and video telephone equipment microphone reception signals processing module includes second resistance and the second amplifier, this sound
The microphone reception signals of video call device and the microphone reception signals of other voice and video telephone equipment, pass through second resistance
Be connected to microphone reception signals interface circuit, after addition, communication link through one of voice and video telephone equipment and other
Communication apparatus communication, specific circuit diagram is as shown in Figure 3 and Figure 4.
The utility model can effectively realize that multiple devices carry out sound with other communication equipments by a communication link and regarded
Frequency communicates.The communication means of the communication system of this example, comprises the following steps：
S1：N number of voice and video telephone equipment is connected two-by-two by audio signal interface；
S2：N number of voice and video telephone equipment is entered by the communication link of one of voice and video telephone equipment with other equipment
Row communication, wherein,
The calling signal processing comprises the following steps：
S211：The communication interface of one of voice and video telephone equipment receives calling signal；
S212：The voice and video telephone equipment will be passed in shared audio cable after calling signal transacting；
S213：Other voice and video telephone equipment receive the audio frequency and video in step S212 by calling signaling interfacing transmission line and led to
Talk about the calling signal of equipment output；
S214：All voice and video telephone equipment all play calling signal by loudspeaker.
The microphone reception signals processing method is：
S221：After n voice and video telephone equipment receives microphone reception signals, microphone reception signals interface circuit is passed to
On, wherein, 1<= n <= N；
S222：All voice and video telephone equipment receive microphone reception signals by microphone reception signals interface circuit；
S223：One voice and video telephone equipment of any of which closes the microphone reception signals of n voice and video telephone equipment
Into after processing, exported by the communication link of oneself.
As one embodiment of the present utility model, in step S223, it is assumed that equipment 1 is connect with other equipment by communicating
Mouth is connected, and microphone reception signals are individually obtained by the other equipment outside the equipment such as equipment 2 or equipment 31, then other equipment
Microphone reception signals equipment 1 is passed to by microphone reception signals interface circuit, then the communication link by equipment 1 is defeated
Go out to other communication equipments.
If microphone reception signals are obtained by multiple equipment respectively, for example are obtained by equipment 1 and equipment 2, then
The microphone reception signals of equipment 2 pass to equipment 1 by microphone reception signals interface circuit, and equipment 1 is by equipment 1 and equipment 2
Microphone reception signals synthesis processing after, then other communication equipments are output to by the communication link of equipment 1.
The utility model effectively realizes signal interconnection between multiple devices and shared, and the loudspeaker and microphone of distinct device are not
Sound feedback loop can be formed, connection is simple, and connection quantity is unrestricted.Multiple devices interconnection realizes distribution and adopts sound and put
Sound, be advantageous to more people participate in jointly call when, different call participants can be closer to loudspeaker and microphone, so as to listen more
Clear, that says also becomes apparent from, and realizes good call experience.
Embodiment described above is better embodiment of the present utility model, and it is new not to limit this practicality with this
The specific implementation scope of type, the scope of the utility model includes being not limited to present embodiment, all according to the utility model
The equivalence changes made are in the scope of protection of the utility model.
Claims (6)
1. multitone video call device shares the communication system of audio signal, it is characterised in that：Set including N number of voice and video telephone
It is standby, there are two or more identical audio signal interfaces in each voice and video telephone equipment, N number of voice and video telephone is set
Back-up is not connected two-by-two by audio signal interface, is connected between all voice and video telephone equipment with a kind of audio cable, is owned
Voice and video telephone equipment can be communicated by the communication link of one of voice and video telephone equipment with other equipment.
2. communication system according to claim 1, it is characterised in that：The audio cable is used for connecting N number of voice-frequency telephony
Equipment shared calling signaling interfacing transmission line, microphone reception signals interface circuit and power line, N number of voice and video telephone equipment energy
The calling signal of one of equipment is enough shared by calling signaling interfacing transmission line；The microphone of N number of voice and video telephone equipment is received
Sound signal can be by microphone reception signals interface circuit, by the communication link of one of voice and video telephone equipment after being added
With other communication apparatus communications；N number of voice and video telephone equipment can share a power supply by power line.
3. communication system according to claim 2, it is characterised in that：The voice and video telephone equipment is included at calling signal
Reason circuit and microphone reception signals process circuit, the calling signal of the voice and video telephone equipment of more than 1 pass through calling signal
Process circuit is attempted by calling signaling interfacing transmission line；The microphone reception signals of the voice and video telephone equipment of more than 1 pass through
Microphone reception signals process circuit is attempted by microphone signal interface circuit.
4. communication system according to claim 3, it is characterised in that：The voice and video telephone equipment calling signal transacting mould
Block includes first resistor and the first amplifier, the calling signal of this voice and video telephone equipment and coming for other voice and video telephone equipment
Signal is talked about, calling signaling interfacing transmission line is connected to by first resistor, after addition, is led to after the first amplifier carries out power amplification
Cross the loudspeaker output of all voice and video telephone equipment.
5. communication system according to claim 3, it is characterised in that：The voice and video telephone equipment microphone reception signals
Processing module includes second resistance and the second amplifier, the microphone reception signals and other audio frequency and video of this voice and video telephone equipment
The microphone reception signals of verbal system, microphone reception signals interface circuit is connected to by second resistance, after addition, through it
In a voice and video telephone equipment communication link and other communication apparatus communications.
6. according to the communication system described in claim any one of 1-5, it is characterised in that：Each voice-frequency telephony equipment is provided with two
Individual identical audio signal interface, the signal of each audio signal interface transmission includes calling signal and microphone radio reception is believed
Number, an audio signal interface of equipment 1 is connected by audio cable with an audio signal interface of equipment 2, equipment 2 it is another
One audio signal interface is connected by audio cable with an audio signal interface of equipment 3, the like, until N number of sound
Frequency verbal system is connected two-by-two by audio cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721216509.5U CN207124649U (en) | 2017-09-21 | 2017-09-21 | Multitone video call device shares the communication system of audio signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721216509.5U CN207124649U (en) | 2017-09-21 | 2017-09-21 | Multitone video call device shares the communication system of audio signal |
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| CN207124649U true CN207124649U (en) | 2018-03-20 |
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| CN201721216509.5U Active CN207124649U (en) | 2017-09-21 | 2017-09-21 | Multitone video call device shares the communication system of audio signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107592317A (en) * | 2017-09-21 | 2018-01-16 | 深圳市好会通科技有限公司 | Multitone video call device shares the communication system and method for audio signal |
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2017
- 2017-09-21 CN CN201721216509.5U patent/CN207124649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107592317A (en) * | 2017-09-21 | 2018-01-16 | 深圳市好会通科技有限公司 | Multitone video call device shares the communication system and method for audio signal |
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