CN107592317A - Multitone video call device shares the communication system and method for audio signal - Google Patents
Multitone video call device shares the communication system and method for audio signal Download PDFInfo
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- CN107592317A CN107592317A CN201710860872.9A CN201710860872A CN107592317A CN 107592317 A CN107592317 A CN 107592317A CN 201710860872 A CN201710860872 A CN 201710860872A CN 107592317 A CN107592317 A CN 107592317A
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Abstract
The present invention provides the communication system and method that a kind of multitone video call device shares audio signal, belongs to the communications field.The communication system of the present invention 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.Present invention also offers a kind of communication means based on the communication system.Beneficial effects of the present invention 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 present invention relates to the communications field, more particularly to a kind of multitone video call device to share the communication system of audio signal
And method.
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.
The content of the invention
To solve the problems of the prior art, the present invention provides a kind of multitone video call device and shares the logical of audio signal
Letter system, also provide a kind of communication means based on the communication system.
Communication system of the present invention includes N number of voice and video telephone equipment, has two or two in each voice and video telephone equipment
Identical audio signal interface, N number of voice and video telephone equipment are connected two-by-two by audio signal interface respectively above, are owned
Connected between voice and video telephone equipment using a kind of audio cable, all voice and video telephone equipment can be regarded by one of sound
The communication link of frequency verbal system and other communication apparatus communications.
The present invention is further improved, and the audio cable includes being used to connect the shared calling of N number of voice-frequency telephony equipment
Signaling interfacing transmission line, microphone reception signals interface circuit and power line, N number of voice and video telephone equipment can pass through calling signal
Interface circuit shares the calling signal of one of equipment；Energy after the microphone reception signals of N number of voice and video telephone equipment are added
Enough by microphone reception signals interface circuit, led to by the communication link of one of voice and video telephone equipment with other equipment
Letter；N number of voice and video telephone equipment can share a power supply by power line.
The present invention is further improved, and the voice and video telephone equipment includes calling signal processing circuit and microphone radio reception
Signal processing circuit, the calling signal of the voice and video telephone equipment of more than 1 are attempted by calling by calling signal processing circuit
On signaling interfacing transmission line；The microphone reception signals of the voice and video telephone equipment of more than 1 are handled by microphone reception signals
Circuit is attempted by microphone signal interface circuit.
The present invention is further improved, and the voice and video telephone equipment calling signal processing module includes first resistor and the
One amplifier, the calling signal of this voice and video telephone equipment and the calling signal of other voice and video telephone equipment, pass through the first electricity
Resistance is connected to calling signaling interfacing transmission line, after addition, passes through all voice and video telephones after the first amplifier carries out power amplification
The loudspeaker output of equipment.
The present invention is further improved, and the voice and video telephone equipment microphone reception signals processing module includes the second electricity
Resistance and the second amplifier, the microphone reception signals of this voice and video telephone equipment and the microphone of other voice and video telephone equipment are received
Sound signal, microphone reception signals interface circuit is connected to by second resistance, after addition, set through one of voice and video telephone
Standby communication link and other communication apparatus communications.
The present invention is further improved, and each voice-frequency telephony equipment is provided with two identical audio signal interfaces,
The signal of each audio signal interface transmission includes calling signal and microphone reception signals, and an audio signal of equipment 1 connects
Mouth is connected by audio cable with an audio signal interface of equipment 2, and another audio signal interface of equipment 2 passes through audio
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 two
Two are connected.
The present invention also provides a kind of communication means based on the communication system, 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 led to by the communication link of one of voice and video telephone equipment with other equipment
Letter, 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 voice and video telephone in step S212 by calling signaling interfacing transmission line and set
The calling signal of standby 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, pass on microphone reception signals interface circuit,
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 is by the microphone reception signals synthesis of n voice and video telephone equipment
After reason, exported by the communication link of oneself.
The present invention is further improved, in step S223, it is assumed that and equipment 1 is connected with other equipment by communication interface,
Microphone reception signals are obtained by other individual equipments outside equipment 1, then obtain the equipment of microphone reception signals by wheat
Gram wind reception signals pass to equipment 1 by microphone reception signals interface circuit, are then output to by the communication link of equipment 1
Other communication equipments, if microphone reception signals are obtained by multiple equipment respectively, then in multiple equipment, including equipment 1
Microphone reception signals are passed to equipment 1 by all devices inside by microphone reception signals interface circuit, and equipment 1 will be more again
After the microphone reception signals synthesis processing of individual equipment, then other communication equipments are output to by the communication link of equipment 1.
Compared with prior art, the beneficial effects of the invention are as follows：Effectively realize the signal interconnection between multiple 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.Multiple devices
Interconnection realizes distribution and adopts sound and playback, and when being advantageous to more people and participating in call jointly, different call participants can more lean on
Nearly 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 schematic structural view of the invention；
Fig. 2 is circuit block diagram of the present invention；
Fig. 3 is circuit theory diagrams of the present invention；
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 present invention is described in further details with reference to the accompanying drawings and examples.
As shown in figure 1, communication system of the present invention includes N number of voice and video telephone equipment（Abbreviation equipment）, each audio frequency and video lead to
Words equipment is provided with two identical audio signal interfaces, and the signal that can be transmitted in each audio signal interface, which includes, to be come
The signals such as words, 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 present invention can effectively realize that multiple devices carry out audio frequency and video with other communication equipments by a communication link and led to
Letter.The communication means 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 led to by the communication link of one of voice and video telephone equipment with other equipment
Letter, 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 voice and video telephone in step S212 by calling signaling interfacing transmission line and set
The calling signal of standby 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, pass on microphone reception signals interface circuit,
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 is by the microphone reception signals synthesis of n voice and video telephone equipment
After reason, exported by the communication link of oneself.
As one embodiment of the present of invention, in step S223, it is assumed that equipment 1 passes through communication interface phase with other equipment
Even, microphone reception signals are individually obtained by the other equipment outside the equipment such as equipment 2 or equipment 31, then the wheat of other equipment
Gram wind reception signals pass to equipment 1 by microphone reception signals interface circuit, are then output to by the communication link of equipment 1
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 of the invention signal interconnection effectively realized between multiple devices and shared, the loudspeaker and microphone of distinct device will not shapes
Into sound feedback loop, connection is simple, and connection quantity is unrestricted.Multiple devices interconnection realizes distribution and adopts sound and playback,
Be advantageous to more people participate in jointly call when, different call participants can be more clear so as to what is listened closer to loudspeaker and microphone
Chu, that says also becomes apparent from, and realizes good call experience.
Embodiment described above is the better embodiment of the present invention, not limits the specific of the present invention with this
Practical range, the scope of the present invention includes being not limited to present embodiment, all equal according to the equivalence changes of the invention made
Within the scope of the present invention.
Claims (8)
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.
7. a kind of communication means based on any one of the claim 2-6 communication systems, it is characterised in that comprise 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 led to by the communication link of one of voice and video telephone equipment with other equipment
Letter, 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 voice and video telephone in step S212 by calling signaling interfacing transmission line and set
The calling signal of standby 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, pass on microphone reception signals interface circuit,
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 is by the microphone reception signals synthesis of n voice and video telephone equipment
After reason, exported by the communication link of oneself.
8. communication means according to claim 7, it is characterised in that：In step S223, it is assumed that equipment 1 and other equipment
It is connected by communication interface, microphone reception signals are obtained by other individual equipments outside equipment 1, then obtain microphone and receive
Microphone reception signals are passed to equipment 1 by the equipment of sound signal by microphone reception signals interface circuit, then pass through equipment 1
Communication link be output to other communication equipments or communication network；If microphone reception signals are obtained by multiple equipment respectively
Take, then in multiple equipment, including microphone reception signals are passed through microphone reception signals interface line by all devices of equipment 1
Equipment 1 is passed on road, after equipment 1 is again handled the microphone reception signals synthesis of multiple equipment, then the communication link by equipment 1
It is output to other communication equipments or communication network.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860872.9A CN107592317A (en) | 2017-09-21 | 2017-09-21 | Multitone video call device shares the communication system and method for audio signal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710860872.9A CN107592317A (en) | 2017-09-21 | 2017-09-21 | Multitone video call device shares the communication system and method for audio signal |
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| CN107592317A true CN107592317A (en) | 2018-01-16 |
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| CN201710860872.9A Pending CN107592317A (en) | 2017-09-21 | 2017-09-21 | Multitone video call device shares the communication system and method for audio signal |
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| CN1359059A (en) * | 2000-12-18 | 2002-07-17 | 联想(北京)有限公司 | Multi-audio equipment connection terminal and combined connector |
| US20070042762A1 (en) * | 2005-08-19 | 2007-02-22 | Darren Guccione | Mobile conferencing and audio sharing technology |
| CN103391118A (en) * | 2013-07-23 | 2013-11-13 | 广东欧珀移动通信有限公司 | Bluetooth headset and audio sharing method by virtue of Bluetooth headsets |
| CN203734822U (en) * | 2013-12-24 | 2014-07-23 | Tcl通力电子（惠州）有限公司 | Automatic identification circuit for audio port connection modes and audio playback device |
| CN104837126A (en) * | 2015-04-01 | 2015-08-12 | 上海斐讯数据通信技术有限公司 | Method used for sharing conversation between mobile communication terminals and mobile communication terminals |
| CN207124649U (en) * | 2017-09-21 | 2018-03-20 | 深圳市好会通科技有限公司 | Multitone video call device shares the communication system of audio signal |
-
2017
- 2017-09-21 CN CN201710860872.9A patent/CN107592317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359059A (en) * | 2000-12-18 | 2002-07-17 | 联想(北京)有限公司 | Multi-audio equipment connection terminal and combined connector |
| US20070042762A1 (en) * | 2005-08-19 | 2007-02-22 | Darren Guccione | Mobile conferencing and audio sharing technology |
| CN103391118A (en) * | 2013-07-23 | 2013-11-13 | 广东欧珀移动通信有限公司 | Bluetooth headset and audio sharing method by virtue of Bluetooth headsets |
| CN203734822U (en) * | 2013-12-24 | 2014-07-23 | Tcl通力电子（惠州）有限公司 | Automatic identification circuit for audio port connection modes and audio playback device |
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