CN103944645B - A kind of audio communication method and voice frequency terminal - Google Patents
A kind of audio communication method and voice frequency terminal Download PDFInfo
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- CN103944645B CN103944645B CN201310019937.9A CN201310019937A CN103944645B CN 103944645 B CN103944645 B CN 103944645B CN 201310019937 A CN201310019937 A CN 201310019937A CN 103944645 B CN103944645 B CN 103944645B
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Abstract
The invention provides a kind of audio communication method and voice frequency terminal.This audio communication method includes: local terminal obtains the status information of other voice frequency terminals；According to the status information obtained, send audio signal to other voice frequency terminals that currently can carry out voice communication.By the enforcement of the present invention, voice frequency terminal sends audio signal according to status information to other voice frequency terminals that currently can carry out voice communication so that voice frequency terminal can be that the target audio terminal that can communicate carries out specific aim broadcast for status information；Meanwhile, this playback possessing purposiveness may be used for realizing data interaction between multiple voice frequency terminal, and, it is not required to conventional audio terminal is carried out the improvement of hardware, adds the experience of user.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of audio communication method and voice frequency terminal.
Background technology
At present, terminal unit is by wireless offices such as such as WiFi based on IEEE802.11x agreement mostly
Territory net carries out data interaction, and these wireless communication technologys are while meeting user's request, also to communication equipment
Having certain requirement, if desired for special network hardware support etc., setting up WLAN needs special net
Network hardware device (such as the access point apparatus of connection management between the network equipment), in each WLAN
Terminal on also must have NIC, further need exist for each terminal support corresponding network communication protocol；
But the most many normal domestic use electronic equipments and personal electronic equipments often cannot meet these networking conditions,
WLAN just cannot be utilized between these equipment to communicate；And on these terminal units the most all with
Audio frequency sends and receiver module, as in the terminals such as TV, sound equipment, mobile phone, removable computer all with MIC and
Speaker, can be used to receive and send audio frequency sound signal, even without the extra situation increasing hardware
Under, only i.e. may utilize existing equipment by software approach and carry out voice communication, but, present video terminal to
During outer playback, being playing out of blindness, no matter it needs whether object of communication can receive.
Summary of the invention
The invention provides a kind of audio communication method and voice frequency terminal, solve present video terminal and outwards broadcast
The problem can not being transmitted for target audio terminal during sound.
The invention provides a kind of audio communication method, in one embodiment, the method includes: local terminal obtains
Take the status information of other voice frequency terminals；According to the status information obtained, to currently carrying out voice communication
Other voice frequency terminals send audio signal.
Further, the method for the status information that the local terminal in above-described embodiment obtains other voice frequency terminals is concrete
For: if local terminal receives the audio signal that other voice frequency terminals send, then get this audio signal sender
Status information for voice communication can be carried out.
Further, the audio signal that other voice frequency terminals in above-described embodiment send carries transmission
The identification information of side, sends the method tool of audio signal to other voice frequency terminals that currently can carry out voice communication
Body is: from the identification information of the audio signal extraction sender that other voice frequency terminals send, and preserve；Outwards
Send the audio signal of the identification information carrying target audio terminal.
Further, the local terminal in above-described embodiment sends out the identification information carrying target audio terminal
Audio signal after, also include: detecting whether to receive the response signal of target audio terminal feedback, if not
Receive, then update the status information of target audio terminal.
Further, the audio communication method in above-described embodiment also includes: local terminal is same by get
After the status information of voice frequency terminal is bound with identification information, it is stored in a state table.
Further, the audio communication method in above-described embodiment also includes: local terminal receives other audio frequency eventually
The state table that end sends, updates the state table of self according to the state table received.
Further, sending to other voice frequency terminals that currently can carry out voice communication in above-described embodiment
Before audio signal, also include: whether detection is outside exists audio signal, if existing, then time etc. scheduled
Between after section, whether detection is outside again exists audio signal, there is not audio frequency letter until testing result is outside
Number, then send audio signal to other voice frequency terminals that currently can carry out voice communication.
The invention provides a kind of voice frequency terminal, in one embodiment, this terminal includes acquisition module and sends out
Send module；Wherein, acquisition module is for obtaining the status information of other voice frequency terminals；Sending module is used for root
The status information obtained according to acquisition module, sends audio frequency to other voice frequency terminals that currently can carry out voice communication
Signal.
Further, the acquisition module in above-described embodiment is specially receiver module；Receiver module is for connecing
After receiving the audio signal that other voice frequency terminals send, the status information getting this audio signal sender is
Voice communication can be carried out.
Further, the audio signal that other voice frequency terminals in above-described embodiment send carries sender
Identification information；Sending module includes extraction module and sends submodule, and extraction module is for from other audio frequency
The audio signal that terminal sends is extracted the identification information of sender, and preserves；Send submodule for outwards
Send the audio signal of the identification information carrying target audio terminal.
Further, the voice frequency terminal in above-described embodiment also includes first detection module and status information more
New module, for sending out the audio signal of the identification information carrying target audio terminal at transmission submodule
Afterwards, detect whether to receive the response signal of target audio terminal feedback；State information updating module is for the
If the testing result of a detection module is not for receiving, update the status information of target audio terminal.
Further, the voice frequency terminal in above-described embodiment also includes logging modle and memory module；Record
Module, and will for recording status information that receiver module gets and the identification information that extraction module extracts
The status information of same voice frequency terminal is stored in a state table after binding with identification information；Memory module is used for
Preserve state table.
Further, the receiver module in above-described embodiment is additionally operable to receive the shape that other voice frequency terminals send
State table, and it is transferred to state information updating module；State information updating module is additionally operable to connect according to receiver module
The state table received updates the state table of self.
Further, the voice frequency terminal in above-described embodiment also includes the second detection module, the second detection mould
Block, before sending module sends audio signal to other voice frequency terminals that currently can carry out voice communication, is used for
Whether detection is outside exists audio signal, if existing, then after waiting predetermined amount of time, detection is outside again is
No there is audio signal, until testing result is outside when there is not audio signal, notice sending module is to working as
Before can carry out voice communication other voice frequency terminals send audio signal；Sending module is for detecting mould second
The testing result of block is outside when there is not audio signal, to currently carrying out other audio frequency of voice communication eventually
End sends audio signal.
In the present invention, voice frequency terminal is after the status information getting other voice frequency terminals, according to acquisition
To status information to currently can carry out voice communication other voice frequency terminals send audio signal so that audio frequency
Terminal can be that the target audio terminal that can communicate carries out specific aim broadcast for status information；Meanwhile, this
Possess purposiveness playback and can realize data interaction between multiple voice frequency terminal, and, conventional voice frequency terminal
The present invention requirement to terminal unit can be met, and without increasing new functional module, add user
Experience.
Accompanying drawing explanation
The schematic diagram of the audio communication system that Fig. 1 provides for one embodiment of the invention；
Fig. 2 is a kind of structural representation of local terminal in Fig. 1；
Fig. 3 is the another kind of structural representation of local terminal in Fig. 1；
Fig. 4 is the another kind of structural representation of local terminal in Fig. 1；
The schematic diagram of the audio communication method that Fig. 5 provides for one embodiment of the invention；
The schematic diagram of the audio communication method that Fig. 6 provides for another embodiment of the present invention.
Detailed description of the invention
Combine the mode of accompanying drawing below by detailed description of the invention the present invention is made further to annotate explanation.
Local terminal hereinafter refers to the voice frequency terminal that the present invention provides, and other voice frequency terminals refer to except local terminal
Outside the present invention provide voice frequency terminal.
The schematic diagram of the audio communication system that Fig. 1 provides for one embodiment of the invention；As shown in Figure 1, at this
In embodiment, the audio communication system 1 that the present invention provides includes at least two voice frequency terminal；For ease of hereafter
Illustrate, set: the local terminal 11 shown in Fig. 1 is the voice frequency terminal that the present invention provides, other voice frequency terminal,
Voice frequency terminal 121 as shown in Figure 1,122 ..., 12n, be the voice frequency terminal that provides of the present invention；Local terminal
11 obtain other voice frequency terminals, and (other voice frequency terminals refer to the voice frequency terminal in addition to local terminal, such as audio frequency
Terminal 121,122 ..., 12n) status information, this status information includes other voice frequency terminal (audio frequency
Terminal 121,122 ..., 12n) communicable state, voice communication and be not available for audio frequency can be carried out
Communication, status information, for can carry out voice communication, i.e. represents this voice frequency terminal, as permissible in voice frequency terminal 121
Receive the audio signal that local terminal 11 sends；Status information for being not available for voice communication, then represents this audio frequency
Terminal, as voice frequency terminal 122 cannot receive the audio signal that local terminal 11 sends；Local terminal 11 is according to obtaining
The status information taken, sends audio signal to other voice frequency terminals that currently can carry out voice communication, carries out sound
Frequency communication connection and/or data interaction.
Fig. 2 is a kind of structural representation of local terminal in Fig. 1；As shown in Figure 2, in this embodiment, this
The local terminal 11 of bright offer includes acquisition module 111 and sending module 112；Wherein,
Acquisition module 111 is for obtaining the status information of other voice frequency terminals；
Sending module 112 is for the status information obtained according to acquisition module 111, to currently carrying out audio frequency
Other voice frequency terminals of communication send audio signal, and this sending module 112 can be the speaker of voice frequency terminal
In playback module or circuit.
In other embodiments, the acquisition module 111 in embodiment illustrated in fig. 2 is specially receiver module, as
For receiving the mike of audio signal or possessing the circuit of reception audio signal function；Receiver module is used for
Receive other voice frequency terminals, as after the audio signal that voice frequency terminal 121 sends, it is believed that send this audio frequency letter
Number sender's voice frequency terminal 121 can communicate, i.e. get this audio signal sender's audio frequency
The status information of terminal 121 is for can carry out voice communication；If not receiving other voice frequency terminals, such as audio frequency eventually
After the audio signal of end 122 transmission, it is believed that the sender's voice frequency terminal 122 sending this audio signal is can not
With communicate, i.e. get the status information of this audio signal sender's voice frequency terminal 122 for entering
Row voice communication.
In other embodiments, the audio signal that other voice frequency terminals in embodiment illustrated in fig. 2 send is taken
With the identification information of sender, this identification information can be specifically the UID of voice frequency terminal, such as mobile terminal device
IMEI etc. can uniquely determine the information of voice frequency terminal identity；Sending module includes extraction module and sends son
Module, extraction module is used for extracting the identification information of sender from the audio signal that other voice frequency terminals send,
And preserve；Send submodule and be used for sending out the audio signal of the identification information carrying target audio terminal,
Audio signal now is the audio signal of the identification information specifically carrying target audio terminal；Other sounds
Frequency terminal, when receiving the audio signal of the identification information carrying target audio terminal, verifies this audio signal
In identification information whether mate with the identification information of self, in the case of the match is successful, only process this audio frequency
Signal, mating concrete can be to judge whether the id signal of self belongs in received audio signal
Entrained one in one or more identification informations.
Fig. 3 is the another kind of structural representation of local terminal in Fig. 1, from the figure 3, it may be seen that the present embodiment is in Fig. 2 institute
Improved on the local terminal 11 shown；As it is shown on figure 3, in the present embodiment, in embodiment illustrated in fig. 2
Local terminal 11 also includes first detection module 113 and state information updating module 114；Wherein,
First detection module 113 sends out for the transmission submodule in sending module and carries target audio
After the audio signal of the identification information of terminal, detect whether to receive the response signal of target audio terminal feedback,
Concrete, this first detection module 113 can be the module that the mike of voice frequency terminal etc. receives audio signal
Or circuit；
If state information updating module 114 is used for the testing result of first detection module 113 for not receiving,
Update the status information of target audio terminal；The response signal not receiving target audio terminal then represents this
Target audio terminal have left the voice communication scope of source voice frequency terminal or shutdown or rejection source voice frequency terminal
The audio signal sent, changes to be not available for voice communication by the status information of this target audio terminal.
In other embodiments, the voice frequency terminal in embodiment illustrated in fig. 3 also includes logging modle and storage mould
Block；Wherein, logging modle gets for recording receiver module status information and extraction module are got
Identification information, and be stored in a state table after the status information of same voice frequency terminal and identification information being bound
In；Memory module is used for preserving state table；The binding mode that logging modle is concrete can be to close one to one
System；The state table that memory module is preserved can be a list, it is also possible to be to adhere to multiple different time sections separately
List.
In other embodiments, the receiver module in embodiment illustrated in fig. 3 (acquisition module 111) is additionally operable to connect
Receive the state table that other voice frequency terminals send, and be transferred to state information updating module；State information updating mould
Block is additionally operable to update the state table of self according to the state table that receiver module receives；If concrete it may be that its
The state table that his voice frequency terminal sends is inconsistent with the state table that self stores, the most aobvious state table, if unanimously,
Do not process.
Fig. 4 is the another kind of structural representation of local terminal in Fig. 1, and as shown in Figure 4, the present embodiment is in Fig. 2 institute
Improved on the local terminal 11 shown；As shown in Figure 4, in the present embodiment, in embodiment illustrated in fig. 2
Local terminal 11 also includes the second detection module 115；Wherein,
Second detection module 115 at sending module 112 to other voice frequency terminals that currently can carry out voice communication
Send before audio signal, be used for detecting whether outside exists audio signal, if existing, then time etc. scheduled
Between after section, whether detection is outside again exists audio signal, there is not audio frequency letter until testing result is outside
Number time, notice sending module 112 to currently can carry out voice communication other voice frequency terminals send audio signal；
This second detection module 115 can be the apparatus for receiving audio such as the mike of voice frequency terminal, pre-timing herein
Between section can be mono-random time section T of set time section T+ ' composition, thus can avoid multiple
Voice frequency terminal checks when result is all to there is not audio signal simultaneously, notifies respective sending module 112 simultaneously
The signal disturbing that audio signal is caused is sent to other voice frequency terminals that currently can carry out voice communication；
Sending module 112 is that outside does not exist audio signal for the testing result at the second detection module 115
Time, send audio signal to other voice frequency terminals that currently can carry out voice communication；This mechanism avoids
When the audio communication network being made up of these voice frequency terminals exists multiple (two and more than) audio signal,
Interfering of audio signal.
Predictably, each functional module in above-mentioned all embodiments, can when function is not conflicted
To be mutually combined use, the various embodiments formed after the operation such as its each functional module combines, merges, deletion
It it is the most all the protection content of the present invention.
Meanwhile, present invention provides a kind of audio communication method；Fig. 5 provides for one embodiment of the invention
The schematic diagram of audio communication method, as shown in Figure 5, in this embodiment, the voice communication that the present invention provides
Method comprises the following steps:
S501: local terminal obtains the status information of other voice frequency terminals.
If local terminal obtains the method for the status information of other voice frequency terminals particularly as follows: local terminal receives other audio frequency
The audio signal that terminal sends, then the status information getting this audio signal sender is led to for carrying out audio frequency
Letter；If local terminal does not receives the audio signal that other voice frequency terminals send, then get this audio signal and send
The status information of side is for being not available for voice communication.
S502: according to the status information obtained, send to other voice frequency terminals that currently can carry out voice communication
Audio signal.
The audio signal that other voice frequency terminals send is carried the identification information of sender, to currently carrying out sound
Other voice frequency terminals of frequency communication send the method for audio signal particularly as follows: the sound that sends from other voice frequency terminals
Frequently the identification information of signal extraction sender, and preserve；Send out the mark letter carrying target audio terminal
The audio signal of breath.Further, the local terminal in above-described embodiment sends out and carries target audio terminal
After the audio signal of identification information, also include: detecting whether to receive the response letter of target audio terminal feedback
Number, if not receiving, then update the status information of target audio terminal.
Further, the audio communication method in above-described embodiment also includes: local terminal is same by get
After the status information of voice frequency terminal is bound with identification information, it is stored in a state table, as by voice frequency terminal 121
IMEI information and " voice communication can be carried out " binding get up to be saved in a state table, by voice frequency terminal
The IMEI information of 122 gets up to be saved in same/another state table with " being not available for voice communication " binding.
Further, the audio communication method in above-described embodiment also includes: local terminal receives other audio frequency eventually
The state table that end sends, updates the state table of self according to the state table received.
Further, sending to other voice frequency terminals that currently can carry out voice communication in above-described embodiment
Before audio signal, also include: whether detection is outside exists audio signal, if existing, then time etc. scheduled
Between after section, whether detection is outside again exists audio signal, there is not audio frequency letter until testing result is outside
Number, then send audio signal to other voice frequency terminals that currently can carry out voice communication.
In order to apply to, in real life, present invention provides one by the audio communication method that the present invention provides
Plant audio communication method, illustrate below in conjunction with Fig. 1 and Fig. 6；In this actual application, do as divided into
Fixed:
All voice frequency terminals one audio communication network of composition in audio communication system shown in Fig. 1, because
Each voice frequency terminal can leave at any time or add this audio communication network, so each voice frequency terminal is all tieed up
Protect a state table, when program initialization, the state table in each voice frequency terminal has only had the state of oneself
Information and binding self identification information, during carrying out voice communication, in the state table in each voice frequency terminal
Status information and the identification information of all known sound case frequency terminals in this audio communication network should be comprised；In conjunction with
Fig. 6 describes the concrete application example of the present invention in detail.
The schematic diagram of the audio communication method that Fig. 6 provides for another embodiment of the present invention；As shown in Figure 6, originally
The audio communication method that invention provides comprises the following steps:
S601: each voice frequency terminal program initialization, is sent out the state table of self storage.
Each voice frequency terminal sends state table by broadcast mode；Broadcast mode include periodic state table broadcast or with
Machine delay state table is broadcasted, and wherein, periodic state broadcast refers to, periodically sends one at interval of a period of time T
Individual status table broadcast, the broadcast of random delay state refers to, random delay one section when the state of detecting has renewal
Time (T+T ') send a status table broadcast；Wherein T is a set time section, T ' be one random time
Between section.
S602: each voice frequency terminal updates the state table of self storage.
After voice frequency terminal receives status table broadcast, according to recently received voice frequency terminal state table and self
The comparison situation of the voice frequency terminal state table safeguarded, the voice frequency terminal state table of real-time update self maintained；Sound
After frequency terminal updates the voice frequency terminal state table of self maintained, send the state table after updating.Further,
After voice frequency terminal updates the voice frequency terminal status information table of self maintained, first continue to determine whether again to receive
To new state broadcast, the most just decide whether to send the state table updated.
S603: detect whether that existence is the external audio signal of interference tones signal for local terminal.
Detection is in consolidated network, when there being more than one voice frequency terminal to be simultaneously in audio frequency transmission, and may
Audio signal conflict occurs.The present invention uses following collision detection and avoiding method: voice frequency terminal is sent out at audio frequency
Whether voice-grade channel in have data send, if it has, wait one the most at random if first intercepting before sending any data
Detect sound wave channel again after the individual time period (T '), constantly repeat " to wait the inspection of random time T ' sound wave channel
Survey " process, until finding not have on channel audio signal, enter next step S604.
S604: select target communications terminal to communicate according to state table.
Voice frequency terminal enter data interaction with maintain connection procedure, can respectively be positioned on oneself state table its
His voice frequency terminal is set up voice communication and is connected and maintain, and carries out data interaction.It is specifically as follows: audio frequency
Terminal enters voice data and alternately and maintains connection procedure, and voice frequency terminal is by other periodically and on state table
Voice frequency terminal swap status table is to maintain the renewal to state table.
S605: detect this voice communication the most successful.
Detection is in predetermined amount of time (that concrete can be 3T), if receive the response of target audio terminal
Signal, if it find that other certain voice frequency terminals on state table do not respond to (overtime) within the time of regulation,
Then think its already out audio network scope, then this voice communication failure, carries out state information updating immediately,
And the voice frequency terminal of time-out is deleted from the state table of self maintained；If receiving response signal, then recognize
Communicate successfully for this, return step S602.
By above-mentioned record, by the enforcement of the present invention, at least possess following beneficial effect:
1, voice frequency terminal is after the status information getting other voice frequency terminals, according to the state letter got
Cease other voice frequency terminals to voice communication currently can be carried out and send audio signal so that voice frequency terminal is outwards broadcast
Sound possesses purposiveness；Meanwhile, this possess purposiveness playback and can realize between multiple voice frequency terminal data and hand over
Mutually, as carried out the friendship of the small data information such as the control information of voice frequency terminal equipment, status information, configuration information
Mutually, and without by connect WIFI transmit；And the voice frequency terminal of routine can meet the present invention to end
The requirement of end equipment, and without increasing new functional module, add the experience of user；
2, by increasing the identification information of voice frequency terminal in audio signal, and it is sent out carrying mark letter
The audio signal of breath, voice frequency terminal does not process audio signal unmatched with self identification information, has speeded sound
Frequency terminal processes the ability of audio signal；
3, before being sent out audio signal, detection should be by whether there being other sounds in audio frequency apparatus network consisting
Frequently signal exists, and if other audio signals, then postpones to send audio signal, it is to avoid multiple
Interfering between audio signal, enhances effectiveness and the stability of voice communication.
Below it is only the detailed description of the invention of the present invention, not the present invention is done any pro forma restriction,
Any simple modification that embodiment of above is done by every technical spirit according to the present invention, equivalent variations or
Modify, all still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. an audio communication method, it is characterised in that including:
Local terminal obtains the status information of other voice frequency terminals, if particularly as follows: local terminal receives other voice frequency terminals sends out
The audio signal sent, then get the status information of this audio signal sender for can carry out voice communication, described
The audio signal that other voice frequency terminals send carries the identification information of sender；
According to the status information obtained, send audio frequency letter to other voice frequency terminals that currently can carry out voice communication
Number, particularly as follows: the identification information of the audio signal extraction sender sent from other voice frequency terminals described, and protect
Deposit；Send out the audio signal of the identification information carrying target audio terminal.
2. audio communication method as claimed in claim 1, it is characterised in that described local terminal sends out
After the audio signal of the identification information carrying target audio terminal, also include: detecting whether to receive target audio
The response signal of terminal feedback, if not receiving, then updates the status information of described target audio terminal.
3. audio communication method as claimed in claim 1, it is characterised in that also include: local terminal will obtain
After the status information of the same voice frequency terminal got is bound with identification information, it is stored in a state table.
4. audio communication method as claimed in claim 3, it is characterised in that also include: local terminal receives
The state table that other voice frequency terminals send, updates the state table of self according to the state table received.
5. the audio communication method as described in any one of Claims 1-4, it is characterised in that described to
Before currently can carrying out other voice frequency terminals transmission audio signal of voice communication, also include: whether detection outside
There is audio signal, if existing, then after waiting predetermined amount of time, whether detection is outside again exists audio signal,
Until testing result is that outside does not exist audio signal, then to other voice frequency terminals that currently can carry out voice communication
Send audio signal.
6. a voice frequency terminal, it is characterised in that include acquisition module and sending module:
Described acquisition module is for obtaining the status information of other voice frequency terminals；
Described sending module, for the status information obtained according to described acquisition module, leads to currently carrying out audio frequency
Other voice frequency terminals of letter send audio signal；
Described acquisition module is specially receiver module；Described receiver module is for sending out receiving other voice frequency terminals
After the audio signal sent, get the status information of this audio signal sender for voice communication can be carried out；Described
The audio signal that other voice frequency terminals send carries the identification information of sender；
Described sending module includes extraction module and sends submodule, and described extraction module is for from other sounds described
The audio signal that frequency terminal sends is extracted the identification information of sender, and preserves；Described transmission submodule is used for
Send out the audio signal of the identification information carrying target audio terminal.
7. voice frequency terminal as claimed in claim 6, it is characterised in that also include first detection module and
State information updating module, for sending out the mark carrying target audio terminal at described transmission submodule
After the audio signal of information, detect whether to receive the response signal of target audio terminal feedback；Described state is believed
If cease the more new module testing result for described first detection module for not receiving, update described target audio
The status information of terminal.
8. voice frequency terminal as claimed in claim 6, it is characterised in that described voice frequency terminal also includes note
Record module and memory module；Described logging modle is for recording status information and the institute that described receiver module gets
State the identification information that extraction module extracts, and by after the status information of same voice frequency terminal and identification information binding
It is stored in a state table；Described memory module is used for preserving described state table.
9. voice frequency terminal as claimed in claim 8, it is characterised in that described receiver module is additionally operable to connect
Receive the state table that other voice frequency terminals send, and be transferred to described state information updating module；Described status information
More new module is additionally operable to update the state table of self according to the state table that described receiver module receives.
10. the voice frequency terminal as described in any one of claim 6 to 9, it is characterised in that also include second
Detection module, described second detection module at described sending module to other audio frequency that currently can carry out voice communication
Terminal sends before audio signal, is used for detecting whether outside exists audio signal, if existing, then etc. scheduled
After time period, whether detection is outside again exists audio signal, there is not audio frequency letter until testing result is outside
Number time, notify described sending module to currently can carry out voice communication other voice frequency terminals send audio signal；
Described sending module for the testing result of described second detection module be outside there is not audio signal time, to
Other voice frequency terminals that currently can carry out voice communication send audio signal.
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| US10853516B2 (en) | 2015-12-09 | 2020-12-01 | Intel Corporation | Methods and apparatus using human electrocardiogram to protect electronic data |
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| CN103944645A (en) | 2014-07-23 |
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