CN104811583B - A kind of device and method of audio-visual synchronization - Google Patents
A kind of device and method of audio-visual synchronization Download PDFInfo
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- CN104811583B CN104811583B CN201510227917.XA CN201510227917A CN104811583B CN 104811583 B CN104811583 B CN 104811583B CN 201510227917 A CN201510227917 A CN 201510227917A CN 104811583 B CN104811583 B CN 104811583B
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Abstract
The invention discloses a kind of device for realizing audio-visual synchronization, in the particular surroundings at least two communication scheduling terminals that IP network and fixed-line phone network interconnect, telephone exchange unit in above-mentioned communication scheduling terminal carries out loop trunkses and each corresponds to the access of phone with exchanging, after communication scheduling terminal establishes speech path, the speech at end where the shielding each of telephone exchange unit, video account application is initiated, gives speech and video communication state reporting to each self-corresponding communication schedule unit；The communications status information that communication schedule unit reports according to the respective telephone exchange unit, establishes video communication, while notifies each self-corresponding telephone exchange unit to open local terminal phone speech, completes the synchronization of audio frequency and video.Meanwhile present invention also offers a kind of method of audio-visual synchronization, by apparatus of the present invention and method, audio frequency and video are difficult to stationary problem and speech and the unified management problem of video account under the conditions of overcoming existing specific communication.
Description
Technical field
The present invention relates to audio/video communication technical field, more particularly to a kind of device and method of audio-visual synchronization.
Background technology
At present, the audio-visual synchronization communication technology based on I P is very ripe, is simultaneously by I P by speech and video
Transmission, and Speech Communication and video communication use same account, under such circumstances, it is ensured that speech and video are preferably
It is synchronous.
But in particular circumstances, for example, establishing the video of point-to-point on the basis of existing telephone network, user is carrying out video
Landline telephone call rather than video system voice conversation are used during communication, problems with this case be present：
First, speech and video account separate management, phone are managed by fixed-line phone network telephone number, and video account uses
URL formula management, two distinct types of network and account type, it is difficult to carry out unified management
Secondly, speech and vision signal are divided among different line transmissions, namely video is netted by I P and transmitted, and speech leads to
Traditional fixed-line phone network transmission is crossed, how both speech and video ensure synchronously to start to transmit, and prior art does not solve this and asked
Topic.
The content of the invention
It is an object of the invention to overcome existing specific communication constraint to establish i.e. on the basis of existing telephone network a little to arrive
The audio-visual synchronization problem of point, there is provided a kind of speech end to end based on loop trunkses and the audio video synchronization communication technology, with solution
Stationary problem in the case of certainly speech and the independent management of video account and two kinds of signals individually transmit.
In order to reach foregoing invention purpose, the invention provides a kind of device of audio-visual synchronization, described device includes logical
At least two communication scheduling terminals of IP network and fixed-line phone network interconnection are crossed, the communication scheduling terminal includes the communication being sequentially connected
Scheduling unit, telephone exchange unit and phone, the telephone exchange unit in each communication scheduling terminal pass through loop trunkses and numeral
Programme-controlled exchange is connected, wherein：
Telephone exchange unit, for loop trunkses and each the access of corresponding phone is with exchanging, communication scheduling terminal it
Between when establishing speech path, shield the speech of each corresponding phone, video account application initiated, by speech and video communication state
Report each self-corresponding communication schedule unit；
Communication schedule unit, for the communications status information reported according to the respective telephone exchange unit, establish video
Communication, while notify each self-corresponding telephone exchange unit to open local terminal phone speech, complete the synchronization of audio frequency and video.
Preferably, at least two communication schedulings terminal includes the first communication scheduling end of any pair of point-to-point communication
End and the second communication scheduling terminal, the telephone exchange unit include：
First telephone exchange unit, for when receive the second telephone exchange unit transmission video communication account application when,
Local terminal phone speech is shielded, local terminal video communication account is sent to the second telephone exchange unit；
Second telephone exchange unit, for being connected when the first telephone exchange unit, owner moves and the second telephone exchange list
When the connected phone of member establishes speech path, local terminal phone speech is shielded, video communication account is sent to the first telephone exchange unit
Number application；Receive the video communication account that the first telephone exchange unit is sent, while to its corresponding communication schedule unit
Initiate video communication request；
The first communication scheduling terminal includes the first telephone exchange unit, and the second communication scheduling terminal includes second
Telephone exchange unit, the first telephone exchange unit and the second telephone exchange unit by loop trunkses with it is digital program controlled
Interchanger is connected.
Specifically, the communication schedule unit includes：
First communication schedule unit, it is connected with the first telephone exchange unit, for being built in the second communication scheduling terminal
After the vertical video communication with the first communication scheduling terminal, the first telephone exchange unit is notified to open local terminal phone speech, to complete
Both sides' audio-visual synchronization；
Second communication schedule unit, it is connected with the second telephone exchange unit, for receiving the second telephone exchange unit
The video account information of carrying the first communication scheduling terminal of initiation video communication request, establish the second communication scheduling terminal with
The video communication of first communication scheduling terminal, and notify the second telephone exchange unit to open local terminal phone speech, to complete both sides
Audio-visual synchronization.
Preferably, the second telephone exchange unit, be additionally operable in the loop after it is upper using after Multiple Frequency Control to code to the
Two communication schedule units initiate video communication request, and receive the video communication account that the first telephone exchange unit is sent, directly
To before receiving to code, then neat number is received；
The first telephone exchange unit, it is additionally operable to hand over to code to the second phone using before Multiple Frequency Control after upper in the loop
Change unit and send video communication account, terminate until sending, to code before retransmiting.
Present invention also offers a kind of method that audio-visual synchronization is realized based on audio-visual synchronization device, methods described bag
Include：
Telephone exchange unit carries out loop trunkses and each the access of corresponding phone is with exchanging, between communication scheduling terminal
When establishing speech path, the speech of each corresponding phone is shielded, video account application is initiated, by speech and video communication state
Offer each self-corresponding communication schedule unit；
The communications status information that communication schedule unit reports according to respective telephone exchange unit, establishes video communication, simultaneously
Notify each self-corresponding telephone exchange unit to open local terminal phone speech, complete the synchronization of audio frequency and video.
Specifically, at least two communication schedulings terminal includes the first communication scheduling end of any pair of point-to-point communication
End and the second communication scheduling terminal, the telephone exchange unit include the first telephone exchange unit and the second telephone exchange unit,
The first telephone exchange unit is connected with the second telephone exchange unit by loop trunkses with digital SPC exchange, the electricity
Talk about crosspoint and carry out loop trunkses and the respective access for corresponding to phone with exchanging, establishing speech between communication scheduling terminal leads to
Lu Shi, the speech of each corresponding phone is shielded, initiates video account application, by speech and video communication state reporting to each right
The communication schedule unit answered includes：
The dynamic phone being connected with the second telephone exchange unit of owner is established speech and led to if first telephone exchange unit is connected
Road；
Second telephone exchange unit shields local terminal phone speech, and video communication account Shen is sent to the first telephone exchange unit
Please；
When receiving the video communication account application of the second telephone exchange unit transmission, the shielding of the first telephone exchange unit is originally
Phone speech is held, local terminal video communication account is sent to the second telephone exchange unit；
Second telephone exchange unit receives the video communication account that the first telephone exchange unit is sent, while to corresponding to it
Communication schedule unit initiates video communication request.
Preferably, communication schedule unit includes the first communication schedule unit being connected with the first telephone exchange unit,
And the second communication schedule unit being connected with the second telephone exchange unit, the communication schedule unit is according to respective phone
The communications status information that crosspoint reports, establishes video communication, while notifies each self-corresponding telephone exchange unit to open this
Phone speech is held, completing the synchronization of audio frequency and video includes：
Second communication schedule unit receives the video for carrying the first communication scheduling terminal that the second telephone exchange unit is initiated
The video communication request of account information, establishes the video communication of the second communication scheduling terminal and the first communication scheduling terminal, and lead to
Know that the second telephone exchange unit opens local terminal phone speech, to complete both sides' audio-visual synchronization；
After second communication scheduling terminal establishes video communication with the first communication scheduling terminal, the first communication schedule unit notice
First telephone exchange unit opens local terminal phone speech, to complete both sides' audio-visual synchronization.
Preferably, the second telephone exchange unit shielding local terminal phone speech, sends to the first telephone exchange unit and regards
Frequency communications account application；When receiving the video communication account application of the second telephone exchange unit transmission, the first telephone exchange list
Member shielding local terminal phone speech, local terminal video communication account is sent to the second telephone exchange unit；Second telephone exchange unit connects
The video communication account of the first telephone exchange unit transmission is received, while initiates video communication to its corresponding communication schedule unit and asks
Ask including：
The second telephone exchange unit shields local terminal phone speech, in the loop after it is upper using after Multiple Frequency Control to code to
Second communication schedule unit initiates video communication request；
When receiving the video communication account application of the second telephone exchange unit transmission, the shielding of the first telephone exchange unit is originally
Phone speech is held, sending video to the second telephone exchange unit by the way of Multiple Frequency Control encodes forward in the loop leads to
Believe account, terminate until sending, to code before retransmiting；
Second telephone exchange unit receives the video communication account that the first telephone exchange unit is sent, before receive to
Code, then neat number is received, while video communication request is initiated to its corresponding communication schedule unit.
The present invention provides a kind of device for realizing audio-visual synchronization, at least two communications that IP network and fixed-line phone network interconnect
In the particular surroundings of dispatch terminal, between the communication schedule unit, telephone exchange unit and phone in above-mentioned communication scheduling terminal
Carry out information exchange：Telephone exchange unit carries out loop trunkses and each the access of corresponding phone is with exchanging, at communication scheduling end
End is established after speech path, and the speech at end, initiates video account application where the shielding each of telephone exchange unit, by speech and
Video communication state reporting gives each self-corresponding communication schedule unit；Communication schedule unit is according to the respective telephone exchange unit
The communications status information reported, establishes video communication, while notifies each self-corresponding telephone exchange unit to open local terminal phone words
Sound, complete the synchronization of audio frequency and video.Meanwhile present invention also offers a kind of method of audio-visual synchronization, by apparatus of the present invention and
Method, audio frequency and video are difficult to stationary problem under the conditions of overcoming existing specific communication, and realize the unification of speech and video account
Management.
Brief description of the drawings
Fig. 1 is the schematic diagram of device first that the embodiment of the present invention realizes audio-visual synchronization；
Fig. 2 is the schematic diagram of device second that the embodiment of the present invention realizes audio-visual synchronization；
Fig. 3 is the method first pass figure that the embodiment of the present invention realizes audio-visual synchronization based on audio-visual synchronization device；
Fig. 4 is the method second flow chart that the embodiment of the present invention realizes audio-visual synchronization based on audio-visual synchronization device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other implementation that those skilled in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Audio-visual synchronization device specific embodiment：
Fig. 1 is referred to, the schematic diagram of device first of audio-visual synchronization is realized for the embodiment of the present invention, as illustrated, described
Device includes at least two communication scheduling terminals interconnected by IP network (151,152 ...) and fixed-line phone network, the communication tune
It can be two or more to spend terminal, in order to make it easy to understand, all showing two and multiple situations in Fig. 1.It is described logical
Fixed-line phone network interconnection is crossed mainly by digital SPC exchange (141,142 ...) interconnection, the communication scheduling terminal (11,
12nd ...) include the communication schedule unit (111,112 ...) being sequentially connected, telephone exchange unit (121,122 ...) and
Phone (131,132 ...), phone can be one or more.Telephone exchange unit 12 in each communication scheduling terminal passes through ring
Road relays to be connected with digital SPC exchange (141,142 ...), wherein：
Telephone exchange unit, for loop trunkses and each the access of corresponding phone is with exchanging, communication scheduling terminal it
Between when establishing speech path, shield the speech of each corresponding phone, video account application initiated, by speech and video communication state
Report each self-corresponding communication schedule unit；Wherein, the state that whether Speech Communication state is then connected for speech, video communication
State is then the status information in residing each stage during video account application.The description that the specific stage is seen in embodiment 2.
Communication schedule unit, for the communications status information reported according to the respective telephone exchange unit, establish video
Communication, while notify each self-corresponding telephone exchange unit to open local terminal phone speech, complete the synchronization of audio frequency and video.
Technical solution of the present invention supports the networking timesharing point-to-point communication of two and two or more communication scheduling terminal, but
The same time supports the point-to-point communication between two communication scheduling terminals.By the implementation of technical solution of the present invention, can solve
The problem of communication scheduling terminal audio-visual synchronization that certainly IP network and fixed-line phone network interconnect, in addition, when establishing speech path, talks with
The account of sound is that telephone number is managed, and on the basis of speech connection is established, obtains the account of video communication, solves
Speech and the unified management problem of video account.
Fig. 2 is referred to, the schematic diagram of device second of audio-visual synchronization is realized for the embodiment of the present invention, described at least two is logical
Believe that dispatch terminal includes the first communication scheduling terminal 21 and the second communication scheduling terminal 22 of any pair of point-to-point communication, it is illustrated that
By taking two communication scheduling terminals as an example, two communication scheduling terminals are connected by IP network 23 with digital SPC exchange 24, described
Telephone exchange unit includes：
First telephone exchange unit 212, for when the video communication account Shen for receiving the transmission of the second telephone exchange unit 222
Please when, shield local terminal phone speech, to the second telephone exchange unit 222 send local terminal video communication account；
Specifically, the first telephone exchange unit 212, be additionally operable in the loop after it is upper using before Multiple Frequency Control to code to
Second telephone exchange unit 222 sends video communication account, terminates until sending, to code before retransmiting, such as forward direction code 0xF.Depending on
Frequency communications account can represent for 0-9 numeral or other numeral, letter, words etc..
Second telephone exchange unit 222, for being connected when the first telephone exchange unit 212, owner moves and the second phone
When the connected phone of crosspoint 222 establishes speech path, local terminal phone speech is shielded, is sent out to the first telephone exchange unit 212
Send video communication account application；The video communication account that the first telephone exchange unit 212 is sent is received, at the same it is corresponding to it
Communication schedule unit 211 initiate video communication request；
Specifically, the second telephone exchange unit 222, be additionally operable in the loop after it is upper using after Multiple Frequency Control to code to
Second communication schedule unit 221 initiates video communication request, and receives the video communication that the first telephone exchange unit 212 is sent
Account, to code before receiving, such as forward direction code 0xF, then receive neat number；
When information transfer is carried out between above-mentioned first telephone exchange unit 212 and the second telephone exchange unit 222, employ
Multiple Frequency Control coding transfer method, make the data of transmission more accurate.
The first communication scheduling terminal 21 includes the first telephone exchange unit 212, the second communication scheduling terminal 22
Comprising the second telephone exchange unit 222, the first telephone exchange unit 212 passes through with the second telephone exchange unit 222
Loop trunkses are connected with digital SPC exchange 24.Also as shown in Fig. 2 communication schedule unit includes：
First communication schedule unit 211, it is connected with the first telephone exchange unit 212, in the second communication scheduling
After terminal 221 establishes the video communication with the first communication scheduling terminal 21, the first telephone exchange unit 212 is notified to open local terminal words
Machine speech, to complete both sides' audio-visual synchronization；
Second communication schedule unit 221, it is connected with the second telephone exchange unit 222, is handed over for receiving the second phone
The video communication request of the video account information of the first communication scheduling of carrying terminal 21 of the initiation of unit 222 is changed, it is logical to establish second
Believe the video communication of the communication scheduling terminal 21 of dispatch terminal 22 and first, and notify the second telephone exchange unit 222 to open local terminal
Phone speech, to complete both sides' audio-visual synchronization.
The present embodiment technical scheme, in the particular surroundings at least two communication scheduling terminals that IP network and fixed-line phone network interconnect
In, carry out information exchange between the communication schedule unit, telephone exchange unit and phone in above-mentioned communication scheduling terminal：Phone is handed over
Change unit and carry out loop trunkses and the respective access for corresponding to phone with exchanging, after communication scheduling terminal establishes speech path,
The speech at end, gives speech and video communication state reporting to each self-corresponding communication scheduling where the shielding each of telephone exchange unit
Unit；The communications status information that communication schedule unit reports according to the respective telephone exchange unit, establishes video communication, simultaneously
Notify each self-corresponding telephone exchange unit to open local terminal phone speech, complete the synchronization of audio frequency and video.In addition, lead to establishing speech
Lu Shi, the account to speech are that telephone number is managed, and on the basis of speech connection is established, obtain the account of video communication
Number, solve the problems, such as the unified management of speech and video account.
Realize the embodiment of the method for audio-visual synchronization
As shown in figure 3, realize that the method for audio-visual synchronization is first-class based on audio-visual synchronization device for the embodiment of the present invention
Cheng Tu, a kind of method that audio-visual synchronization is realized based on audio-visual synchronization device, methods described are included：
S301, telephone exchange unit carry out loop trunkses and each the access of corresponding phone is with exchanging, at communication scheduling end
When speech path is established between end, the speech of each corresponding phone is shielded, video account application is initiated, by speech and video communication
State reporting gives each self-corresponding communication schedule unit；Wherein, the state that whether Speech Communication state is then connected for speech, video
Communications status is then the status information in residing each stage during video account application.The specific stage sees retouching in embodiment 4
State.
The communications status information that S302, communication schedule unit report according to respective telephone exchange unit, establishes video communication,
Notify each self-corresponding telephone exchange unit to open local terminal phone speech simultaneously, complete the synchronization of audio frequency and video.
Technical solution of the present invention supports the networking timesharing point-to-point communication of two and two or more communication scheduling terminal, but
The same time supports the point-to-point communication between two communication scheduling terminals.By the implementation of technical solution of the present invention, can solve
The problem of communication scheduling terminal audio-visual synchronization that certainly IP network and fixed-line phone network interconnect.In addition, when establishing speech path, dialogue
The account of sound is that telephone number is managed, and on the basis of speech connection is established, obtains the account of video communication, solves
Speech and the unified management problem of video account.
As described in Figure 4, the method second of audio-visual synchronization is realized based on audio-visual synchronization device for the embodiment of the present invention
Cheng Tu, the first communication scheduling terminal and second that at least two communication schedulings terminal includes any pair of point-to-point communication are led to
Believe dispatch terminal, the telephone exchange unit includes the first telephone exchange unit and the second telephone exchange unit, first electricity
Words crosspoint is connected with the second telephone exchange unit by loop trunkses with digital SPC exchange, and method is as shown in the figure：
The dynamic phone being connected with the second telephone exchange unit of owner establishes words if S401, the first telephone exchange unit are connected
Sound path；In Fig. 4, the connected phone of the first telephone exchange unit that this step and following steps are related to is the first phone,
The connected phone of second telephone exchange unit is the second phone.
S402, the second telephone exchange unit shielding local terminal phone speech, video communication is sent to the first telephone exchange unit
Account application；
The step is specially：Second telephone exchange unit shields local terminal phone speech, in the loop after upper mutual using multifrequency
Control backward code and initiate video communication request to the second communication schedule unit；
S403, when receive the second telephone exchange unit transmission video communication account application when, the first telephone exchange unit
Local terminal phone speech is shielded, local terminal video communication account is sent to the second telephone exchange unit；
The step is specially：When receiving the video communication account application of the second telephone exchange unit transmission, the first phone
Crosspoint shields local terminal phone speech, is sent in the loop after upper using before Multiple Frequency Control to code to the second telephone exchange unit
Video communication account, terminate until sending, to code before retransmiting, such as forward direction code 0xF；
S404, the second telephone exchange unit receive the first telephone exchange unit send video communication account, while to its
Corresponding communication schedule unit initiates video communication request.
The step is specially：Second telephone exchange unit receives the video communication account that the first telephone exchange unit is sent,
To code 0xF before receiving, then neat number is received, while video communication request is initiated to its corresponding communication schedule unit.
Step S402, Multiple Frequency Control coding transfer method is employed in S403, S404, makes the data of transmission more accurate.
In following steps, what the communication schedule unit that is related to included being connected with the first telephone exchange unit first leads to
Believe scheduling unit, and the second communication schedule unit being connected with the second telephone exchange unit.
S405, the second communication schedule unit receive carrying the first communication scheduling terminal that the second telephone exchange unit is initiated
The video communication request of video account information, the video communication of the second communication scheduling terminal and the first communication scheduling terminal is established,
And notify the second telephone exchange unit to open local terminal phone speech, to complete both sides' audio-visual synchronization；
After S406, the second communication scheduling terminal establish video communication with the first communication scheduling terminal, the first communication scheduling list
Member notifies the first telephone exchange unit to open local terminal phone speech, to complete both sides' audio-visual synchronization.The present embodiment technical scheme,
It is logical in above-mentioned communication scheduling terminal in the particular surroundings at least two communication scheduling terminals that IP network and fixed-line phone network interconnect
Information exchange is carried out between letter scheduling unit, telephone exchange unit and phone：Telephone exchange unit carry out loop trunkses and each
The access of corresponding phone is with exchanging, after communication scheduling terminal establishes speech path, where the shielding each of telephone exchange unit
The speech at end, video account application is initiated, gives speech and video communication state reporting to each self-corresponding communication schedule unit；It is logical
The communications status information that letter scheduling unit reports according to the respective telephone exchange unit, video communication is established, while notified each
Self-corresponding telephone exchange unit opens local terminal phone speech, completes the synchronization of audio frequency and video.In addition, when establishing speech path,
Account to speech is that telephone number is managed, and on the basis of speech connection is established, obtains the account of video communication, solution
The unified management problem for speech and the video account of having determined.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limit, modification, modification, replacement, combination, the simplification made under other any Spirit Essences and principle without departing from the present invention,
Equivalent substitute mode is should be, should be all included within protection scope of the present invention.
Claims (8)
1. a kind of device for realizing audio-visual synchronization, it is characterised in that described device includes interconnecting by IP network and fixed-line phone network
At least two communication scheduling terminals, the communication scheduling terminal include be sequentially connected communication schedule unit, telephone exchange list
Member and phone, the telephone exchange unit in each communication scheduling terminal are connected by loop trunkses with digital SPC exchange, wherein：
Telephone exchange unit, the access for loop trunkses and respective corresponding phone are built with exchanging between communication scheduling terminal
During vertical speech path, the speech of each corresponding phone is shielded, video account application is initiated, by speech and video communication state reporting
To each self-corresponding communication schedule unit；
Communication schedule unit, for the communications status information reported according to the respective telephone exchange unit, video communication is established,
Notify each self-corresponding telephone exchange unit to open local terminal phone speech simultaneously, complete the synchronization of audio frequency and video.
2. device according to claim 1, it is characterised in that at least two communication schedulings terminal includes any pair
The the first communication scheduling terminal and the second communication scheduling terminal of point-to-point communication, the telephone exchange unit include：
First telephone exchange unit, for when receiving the video communication account application of the second telephone exchange unit transmission, shielding
Local terminal phone speech, local terminal video communication account is sent to the second telephone exchange unit；
Second telephone exchange unit, for being connected when the first telephone exchange unit, owner moves and the second telephone exchange unit phase
When phone even establishes speech path, local terminal phone speech is shielded, video communication account Shen is sent to the first telephone exchange unit
Please；The video communication account that the first telephone exchange unit is sent is received, while is initiated to its corresponding communication schedule unit
Video communication is asked；
The first communication scheduling terminal includes the first telephone exchange unit, and the second communication scheduling terminal includes the second phone
Crosspoint, the first telephone exchange unit pass through loop trunkses and digital SPC with the second telephone exchange unit
Machine is connected.
3. device according to claim 2, it is characterised in that the communication schedule unit includes：
First communication schedule unit, be connected with the first telephone exchange unit, for the second communication scheduling terminal establish with
After the video communication of first communication scheduling terminal, the first telephone exchange unit is notified to open local terminal phone speech, to complete both sides
Audio-visual synchronization；
Second communication schedule unit, it is connected with the second telephone exchange unit, is initiated for receiving the second telephone exchange unit
Carrying the first communication scheduling terminal video account information video communication request, establish the second communication scheduling terminal and first
The video communication of communication scheduling terminal, and notify the second telephone exchange unit to open local terminal phone speech, regarded with completing both sides' sound
Frequency is synchronous.
4. device according to claim 3, it is characterised in that
The second telephone exchange unit, be additionally operable in the loop after it is upper using after Multiple Frequency Control to code to the second communication scheduling list
Member initiates video communication request, and receives the video communication account that the first telephone exchange unit is sent, to code before receive,
Then receive neat number；
The first telephone exchange unit, be additionally operable in the loop after it is upper using before Multiple Frequency Control to code to the second telephone exchange list
Member sends video communication account, terminates until sending, to code before retransmiting.
A kind of 5. method that audio-visual synchronization is realized based on claim 1 described device, it is characterised in that methods described includes：
Telephone exchange unit carries out the access of loop trunkses and respective corresponding phone with exchanging, and is established between communication scheduling terminal
During speech path, the speech of each corresponding phone is shielded, video account application is initiated, speech and video communication state reporting is given
Each self-corresponding communication schedule unit；
The communications status information that communication schedule unit reports according to respective telephone exchange unit, establishes video communication, notifies simultaneously
Each self-corresponding telephone exchange unit opens local terminal phone speech, completes the synchronization of audio frequency and video.
6. according to the method for claim 5, it is characterised in that at least two communication schedulings terminal includes any pair
The the first communication scheduling terminal and the second communication scheduling terminal of point-to-point communication, the telephone exchange unit are handed over including the first phone
Change unit and the second telephone exchange unit, the first telephone exchange unit and the second telephone exchange unit by loop trunkses with
Digital SPC exchange is connected, and the telephone exchange unit carries out the access of loop trunkses and respective corresponding phone with exchanging,
When establishing speech path between communication scheduling terminal, the speech of each corresponding phone is shielded, video account application is initiated, by speech
Include with video communication state reporting to each self-corresponding communication schedule unit：
The dynamic phone being connected with the second telephone exchange unit of owner establishes speech path if first telephone exchange unit is connected；
Second telephone exchange unit shields local terminal phone speech, and video communication account application is sent to the first telephone exchange unit；
When receiving the video communication account application of the second telephone exchange unit transmission, the first telephone exchange unit shielding local terminal words
Machine speech, local terminal video communication account is sent to the second telephone exchange unit；
Second telephone exchange unit receives the video communication account that the first telephone exchange unit is sent, while is communicated to corresponding to it
Scheduling unit initiates video communication request.
7. according to the method for claim 6, it is characterised in that communication schedule unit includes and the first telephone exchange list
The first connected communication schedule unit of member, and the second communication schedule unit being connected with the second telephone exchange unit, institute
The communications status information that communication schedule unit reports according to respective telephone exchange unit is stated, establishes video communication, while is notified each
Self-corresponding telephone exchange unit opens local terminal phone speech, and completing the synchronization of audio frequency and video includes：
Second communication schedule unit receives the video account for carrying the first communication scheduling terminal that the second telephone exchange unit is initiated
The video communication request of information, establishes the video communication of the second communication scheduling terminal and the first communication scheduling terminal, notifies simultaneously
Second telephone exchange unit opens local terminal phone speech, to complete both sides' audio-visual synchronization；
After second communication scheduling terminal establishes video communication with the first communication scheduling terminal, the first communication schedule unit notifies first
Telephone exchange unit opens local terminal phone speech, to complete both sides' audio-visual synchronization.
8. according to the method for claim 6, it is characterised in that the second telephone exchange unit shielding local terminal phone words
Sound, video communication account application is sent to the first telephone exchange unit；When the video for receiving the transmission of the second telephone exchange unit leads to
When believing account application, the first telephone exchange unit shielding local terminal phone speech, local terminal video is sent to the second telephone exchange unit
Communications account；Second telephone exchange unit receives the video communication account that the first telephone exchange unit is sent, while corresponding to it
Communication schedule unit initiate video communication request include：
The second telephone exchange unit shields local terminal phone speech, in the loop after it is upper using after Multiple Frequency Control to code to second
Communication schedule unit initiates video communication request；
When receiving the video communication account application of the second telephone exchange unit transmission, the first telephone exchange unit shielding local terminal words
Machine speech, video communication account is sent to code to the second telephone exchange unit using before Multiple Frequency Control after upper in the loop, until
Transmission terminates, to code before retransmiting；
Second telephone exchange unit receives the video communication account that the first telephone exchange unit is sent, to code before receive, then
Neat number is received, while video communication request is initiated to its corresponding communication schedule unit.
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| CN201510227917.XA CN104811583B (en) | 2015-05-06 | 2015-05-06 | A kind of device and method of audio-visual synchronization |
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| CN1874480A (en) * | 2006-04-13 | 2006-12-06 | 钟志华 | Visual communication platform system, and call control method |
| KR20080112589A (en) * | 2007-06-21 | 2008-12-26 | 엘지노텔 주식회사 | Apparatus and method for synchronizing picture and voice in video phone |
| CN101500129A (en) * | 2008-02-01 | 2009-08-05 | 周晓辉 | Method for implementing visible phone call combining PSTN network and IP network |
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| CN102368761A (en) * | 2011-03-15 | 2012-03-07 | 陈建国 | Time division-synchronous code division multiple access (TD-SCDMA)/ IP double network cooperation multimedia telephone, system and communication method thereof |
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| US6907034B1 (en) * | 1999-04-08 | 2005-06-14 | Intel Corporation | Out-of-band signaling for network based computer session synchronization |
| US20080043964A1 (en) * | 2006-07-14 | 2008-02-21 | Majors Kenneth D | Audio conferencing bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1874480A (en) * | 2006-04-13 | 2006-12-06 | 钟志华 | Visual communication platform system, and call control method |
| KR20080112589A (en) * | 2007-06-21 | 2008-12-26 | 엘지노텔 주식회사 | Apparatus and method for synchronizing picture and voice in video phone |
| CN101500129A (en) * | 2008-02-01 | 2009-08-05 | 周晓辉 | Method for implementing visible phone call combining PSTN network and IP network |
| CN201491170U (en) * | 2009-09-07 | 2010-05-26 | 陈建国 | PSTN and Internet-based multimedia communication system |
| CN102368761A (en) * | 2011-03-15 | 2012-03-07 | 陈建国 | Time division-synchronous code division multiple access (TD-SCDMA)/ IP double network cooperation multimedia telephone, system and communication method thereof |
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