CN101860620A - Mobile terminal and communication method thereof - Google Patents
Mobile terminal and communication method thereof Download PDFInfo
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- CN101860620A CN101860620A CN201010170797A CN201010170797A CN101860620A CN 101860620 A CN101860620 A CN 101860620A CN 201010170797 A CN201010170797 A CN 201010170797A CN 201010170797 A CN201010170797 A CN 201010170797A CN 101860620 A CN101860620 A CN 101860620A
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- portable terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
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- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Telephone Function (AREA)
Abstract
The invention discloses a mobile terminal and a communication method thereof. The mobile terminal comprises a main processor, and a wireless communication module and a visual intercom module which are connected with the main processor respectively, wherein the wireless communication module is used for performing wireless communication with a target mobile terminal through an external wireless network; the visual intercom module comprises a modulating and transmitting module and a frequency modulation receiving module; the modulating and transmitting module is used for receiving voice and video information of a user, performing frequency modulation on the voice and video information and transmitting the modulated information; and the frequency modulation receiving module is used for receiving the voice and video information which is modulated by the target mobile terminal and transmitted by the transmitting module, demodulating the voice and video information and playing the demodulated information. The mobile terminal can realize the switching of visual intercom on the basis of wireless communication so as to relieve the dependence on the wireless network and improve user experience.
Description
Technical field
The present invention relates generally to field of mobile communication, is meant the means of communication of a kind of portable terminal and portable terminal especially.
Background technology
Along with the develop rapidly of mobile communication technology and the raising of people's living standard, mobile terminal devices such as mobile phone are popularized into the indispensable equipment in routine work or the life.Simultaneously, people are also more and more higher to the requirement of portable terminal, both thought portablely, want again to incorporate rich functions in a portable terminal, adapt to changeable external environment condition.
Existing mobile phone, MID (Mobile Internet Devices, mobile internet device) portable terminal such as, usually all be to insert mobile communication network by mobile interface, receive mobile network's signal, carry out communication by this passage of mobile network, therefore communication each other will inevitably directly be subjected to the restriction of network condition.For example in public, wireless network generally can only be supported very limited user access network simultaneously in a certain coverage cell, if the caller is many simultaneously, will cause the normally situation generation of access network of certain customers.There are not place that wireless network signal covers or wireless network to occur when unusual at the urban network blind area of coverage or in the mountain area etc., just more the wireless telecommunications of wireless network can't have been depended on, all these has a greatly reduced quality user experience, bring very big inconvenience for the contact between the user, even cause very big loss to the user.
The inventor finds that there is following defective at least in prior art in realizing process of the present invention: portable terminals such as present mobile phone or MID, communication each other is undue depends on wireless network, has inconvenience and defective in actual use.
Summary of the invention
The present invention proposes the means of communication of a kind of portable terminal and portable terminal, can realize the switching of video intercom on the basis of wireless telecommunications, thereby has alleviated the dependence to wireless network, has improved user experience.
Technical scheme of the present invention is achieved in that
A kind of portable terminal comprises primary processor, wireless communication module and video intercom module, and described wireless communication module is connected with described primary processor respectively with described video intercom module;
Described wireless communication module is used for carrying out wireless telecommunications by external wireless network and destination mobile terminal;
Described video intercom module comprises:
Modulation and transmitter module are used to receive the user's voice video information, and described voice and video information is carried out frequency modulation modulation back emission;
The FM reception module is used for the modulation of receiving target portable terminal and the voice and video information that transmitter module is launched, and described voice and video information is carried out playing after the demodulation.
Preferably, also comprise:
Handover module, described handover module is connected with described wireless communication module with described video intercom module, be used for switching described video intercom module of selection or described wireless communication module, described portable terminal is switched between wireless communication mode and video intercom pattern according to switching signal.
Preferably, also comprise:
The network state detection module is used to detect external wireless network of network state;
First generation module is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to detected network state.
Preferably, described first generation module comprises:
First produces submodule, is used for detecting when being lower than threshold value less than external wireless network or the state parameter that detects network state when described network state detection module, and generation switches to the switching signal of described video intercom pattern;
Second produces submodule, is used for when state parameter that described network state detection module detects network state is not less than described threshold value, and generation switches to the switching signal of described wireless communication mode.
Preferably, also comprise:
Input unit is used to receive the selection signal to described wireless communication mode or described video intercom pattern that the user imports;
The 3rd produces module, is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to described selection signal.
Preferably, also comprise microphone, loud speaker, camera and display screen, described modulation and transmitter module receive the user's voice video information by described microphone and described camera, and the voice and video information after the demodulation is play by described loud speaker and described display screen.
Preferably, also comprise the modulation antenna, the voice and video information after described modulation and transmitter module are modulated by described modulation antenna emission;
Described FM reception module is by the voice and video information of described modulation antenna receiving target portable terminal.
A kind of means of communication of portable terminal are applied to comprise in the portable terminal of wireless communication module and video intercom module, comprising:
Under first mode of operation, described portable terminal carries out wireless telecommunications by external wireless network and destination mobile terminal;
Under second mode of operation, described portable terminal receives the user's voice video information, and described voice and video information carried out frequency modulation modulation back emission, and the voice and video information of receiving target portable terminal emission, and described voice and video information carried out playing after the demodulation.
Preferably, also comprise:
Detect external wireless network of network state;
Make described portable terminal switch to the switching signal of wireless communication mode or video intercom pattern according to detected network state generation;
Switch described wireless communication module of selection or described video intercom module according to described switching signal.
Preferably, the described switching signal that makes described portable terminal switch to wireless communication mode or video intercom pattern according to detected network state generation specifically comprises:
Make described portable terminal switch to the switching signal of video intercom pattern when detecting when being lower than threshold value, producing less than external wireless network or the state parameter that detects network state;
When the state parameter that detects network state was not less than described threshold value, generation made described portable terminal switch to the switching signal of wireless communication mode.
By portable terminal of the present invention, on the one hand, between the mobile phone users, can when not having wireless network covering, coverage hole or wireless network unsettled situation to occur, carry out the Voice ﹠ Video transmission of certain distance, carry out video intercom; On the other hand, even in the good place of the network coverage, by portable terminal of the present invention, owing to have the video intercom function, do not need the support of wireless network, also can carry out the free communication in the certain distance, thereby can save user's telephone expenses spending, also can alleviate the blockage pressure of wireless network communication.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the composition structure chart of a kind of portable terminal preferred embodiment of the present invention;
The schematic diagram that Fig. 2 switches under various patterns for portable terminal of the present invention;
Fig. 3 is the schematic flow sheet of the communication switching method preferred embodiment of a kind of portable terminal of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
With reference to Fig. 1, show the composition structure chart of a kind of portable terminal preferred embodiment of the present invention.Described portable terminal 100 comprises primary processor 110, wireless communication module 120 and video intercom module 130, and described wireless communication module 120 is connected with described primary processor 110 respectively with described video intercom module 130.Described portable terminal 100 can also comprise parts such as microphone 160, loud speaker 170, camera 180 and display screen 150, wireless communication antenna, memory except comprising described primary processor 110, wireless communication module 120 and video intercom module 130.
Described primary processor 110 is preferably the embedded type CPU (Central processing unit, central processing unit) on the mainboard.
Described wireless communication module 120 is used for carrying out wireless telecommunications by external wireless network and destination mobile terminal.
Described wireless communication module 120 is bridges that portable terminal 100 connects the external wireless network, the standard of described wireless communication module 120 and type can be various, as WCDMA (Wideband CodeDivision Multiple Access, Wideband Code Division Multiple Access (WCDMA)), CDMA2000 (Code Division MultipleAccess 2000, CDMA 2000), TD-SCDMA (Time Division-Synchronous CodeDivision Multiple Access, TD SDMA), WiMAX (WorldwideInteroperability for Microwave Access, worldwide interoperability for microwave inserts) and LTE ((Long TermEvolution, Long Term Evolution)) etc.In addition, described wireless communication module 120 can also be wireless modem (modulator-demodulator), wireless data card or other wireless communication module.
The operation principle of described wireless communication module 120 following (is example with the mobile phone): the cellphone subscriber is sent to described primary processor 110 by microphone 160 with business datum (mainly being speech data) and carries out protocol processes and encoding process, is sent to cordless communication network by wireless communication antenna (antenna for mobile phone) then; Or the cellphone subscriber is sent to loud speaker 170 after the protocol processes of process primary processor 110 and the decoding processing then and plays by the business datum of wireless communication antenna (antenna for mobile phone) reception cordless communication network.
Described video intercom module 130 comprises:
Modulation and transmitter module are used to receive the user's voice video information, and described voice and video information is carried out frequency modulation modulation back emission.
The FM reception module is used for the modulation of receiving target portable terminal and the voice and video information that transmitter module is launched, and described voice and video information is carried out playing after the demodulation.
Described modulation among the present invention and transmitter module are preferably FM (Frequency Modulation, frequency modulation) modulation and transmitter module.Because the frequency range of FM broadcasting can be public, user both sides can take the situation of frequency range according to local radio station, come selected idle frequency respectively as voice and video information emission frequency and receive frequency, realize free thus or low-cost visual intercommunication conversation.Particularly, after modulation receives the user's voice video information with transmitter module, in public FM frequency range, select an idle frequency so that described voice and video information is carried out the FM modulate emission.Described modulation and transmitter module receive the user's voice video information by described microphone 160 and described camera 180, then voice and video information is carried out the FM modulation, launch the voice and video information of process FM modulation by wireless communication antenna (antenna for mobile phone) or modulation antenna (intercom antenna) at last.
Described FM reception module is by the voice and video information of the modulation and the transmitter module emission of selection one idle frequency receiving target portable terminal in public FM frequency range, and carry out the FM demodulation, the voice and video information after the demodulation is play by described loud speaker 170 and described display screen 150.
Further, portable terminal 100 of the present invention also comprises:
The network state detection module is used to detect external wireless network of network state.
First generation module is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to detected network state.
Wherein, described first generation module comprises:
First produces submodule, is used for detecting when being lower than threshold value less than external wireless network or the state parameter that detects network state when described network state detection module, and generation switches to the switching signal of described video intercom pattern.The state parameter of described network state is used to represent the quality of network state, described state parameter can be the parameter that signal to noise ratio, the error rate etc. can be represented the network state quality, described threshold value can be set according to the actual requirements, and the present invention does not carry out any qualification to this.
Second produces submodule, is used for when state parameter that described network state detection module detects network state is not less than described threshold value, and generation switches to the switching signal of described wireless communication mode.
In the ordinary course of things, described portable terminal 100 is under wireless communication mode, described handover module 140 switches selects described wireless communication module 120, if when not having the state parameter of wireless network covering or wireless network state to be lower than threshold value, produce one and switch signal, described handover module 140 switches according to described switching signal selects described video intercom module 130, makes described portable terminal 100 under the video intercom pattern, thereby can carry out video intercom communication.If when detecting the state parameter of wireless network state and being not less than described threshold value, produce one again and switch signal, described handover module 140 switches according to described switching signal selects described wireless communication module 120, close video intercom module 130, make described portable terminal 100 under wireless communication mode.Certainly, described portable terminal 100 also can be under two patterns of wireless communication mode and video intercom pattern simultaneously, and described handover module 140 is selected wireless communication module and video intercom module 130 simultaneously, and the present invention's this moment is referred to as mixed mode.
In the present invention, the function of described network state detection module also can be responsible for by described wireless communication module 120, and at this moment, described wireless communication module 120 can not be closed.
In another embodiment of the present invention, described portable terminal 100 also comprises:
Input unit is used to receive the selection wireless communication mode of user's input or the selection signal of video intercom pattern.
The 3rd produces module, is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to described selection signal.
At this moment, can carry out the switching of wireless communication mode and video intercom pattern according to user's selection.
In one embodiment of the invention, described video intercom module 130 can also be provided with modulation antenna (intercom antenna) separately, the voice and video information after described modulation and transmitter module are modulated by described modulation antenna emission; Described FM reception module is by the voice and video information of described modulation antenna receiving target portable terminal.
With reference to Fig. 2, the schematic diagram that under various patterns, switches for portable terminal of the present invention.Among described Fig. 2, not only comprise wireless communication mode, video intercom pattern, mixed mode (being in wireless communication mode and video intercom pattern simultaneously), also comprise off-mode, need to prove, described Fig. 2 is a preferred embodiment of the present invention, be used for technical scheme of the present invention has been carried out an explanation for example, can not therefore carry out any qualification the present invention.
Under the default situation, it is wireless communication mode that portable terminal starts the back, after the startup, can carry out four kinds of automatic switchovers between the pattern according to network condition and user's operation.
Step 1: when not starting shooting, portable terminal is in shutdown mode.
Step 2: start, system power-up starts, the default wireless communication mode that enters.
Step 3: if network signal is normal under wireless communication mode, the user can carry out miscellaneous service and the local service based on wireless network, if carry out power-off operation, enters step 8.
Step 4: under wireless communication mode, if (concrete time length can be provided with in a period of time, as 5 minutes) to detect network signal very weak or do not have a signal, system automatically switches to mixed mode, enter step 5, if it is normal to detect mobile network signals, then system held jumps to step 3 under wireless communication mode.
Step 5: under mixed mode, on the one hand, detect the user and whether initiate or reply video intercom; On the other hand, detect wireless network signal, also will detect the user and whether carry out power-off operation.
Step 6: begin the video intercom calling or replied a video intercom incoming call if detect the user, for fear of the phase mutual interference between wireless communication module and the video intercom module, improve speech quality, system automatically switches to the video intercom pattern, and enters step 7, recovers if detect network signal, then switch to wireless communication mode, and enter step 3, if carry out power-off operation, then enter step 8.
Step 7: after video intercom finished, in order to detect mobile network's situation, system switched to mixed mode again, and jumps into into step 5.
Step 8: system switches to shutdown mode, the portable terminal shutdown.
More than be the automatic switchover of portable terminal between various patterns, the user also can manually realize the switching of described portable terminal between various patterns.
Portable terminal of the present invention can be mobile phone, MID or other portable terminal.
By portable terminal of the present invention, on the one hand, between the mobile phone users, can be when not having wireless network covering, coverage hole or wireless network unsettled situation to occur, carry out the Voice ﹠ Video transmission of certain distance (spacious zone generally can reach the 8-10 kilometer), carry out video intercom; On the other hand, even in the good place of the network coverage, by portable terminal of the present invention, owing to have the video intercom function, do not need the support of wireless network, also can carry out the free communication in the certain distance, thereby can save user's telephone expenses spending, also can alleviate the blockage pressure of wireless network communication.
The invention also discloses a kind of means of communication of portable terminal, described method is applied in the portable terminal of the described embodiment of Fig. 1.
The means of communication of described portable terminal comprise:
Under first mode of operation, described portable terminal carries out wireless telecommunications by external wireless network and destination mobile terminal.
Under second mode of operation, described portable terminal receives the user's voice video information, and described voice and video information carried out frequency modulation modulation back emission, and the voice and video information of receiving target portable terminal emission, and described voice and video information carried out playing after the demodulation.
Described first mode of operation is a wireless communication mode, and described second mode of operation is the video intercom pattern.
With reference to Fig. 3, show the schematic flow sheet of the communication switching method preferred embodiment of a kind of portable terminal of the present invention, described communication switching method is applied to comprise in the portable terminal of wireless communication module and video intercom module.Described method comprises:
Step S310, detection external wireless network of network state.
Step S320, produce according to detected network state and to make described portable terminal switch to the switching signal of wireless communication mode or video intercom pattern.
Step S330, switch according to described switching signal and to select described wireless communication module or described video intercom module.
Wherein, described step S320 specifically comprises:
Make described portable terminal switch to the switching signal of video intercom pattern when detecting when being lower than threshold value, producing less than external wireless network or the state parameter that detects network state.
When the state parameter that detects network state was not less than described threshold value, generation made described portable terminal switch to the switching signal of wireless communication mode.
The detailed process of described each step partly is described in detail at the described device embodiment of Fig. 1, does not repeat them here, and gets final product with reference to the description of the described embodiment relevant portion of Fig. 1.
One of ordinary skill in the art will appreciate that; in each method embodiment of the present invention; the sequence number of described each step can not be used to limit the sequencing of each step; for those of ordinary skills; under the prerequisite of not paying creative work, the priority of each step is changed also within protection scope of the present invention.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a portable terminal is characterized in that, comprises primary processor, wireless communication module and video intercom module, and described wireless communication module is connected with described primary processor respectively with described video intercom module;
Described wireless communication module is used for carrying out wireless telecommunications by external wireless network and destination mobile terminal;
Described video intercom module comprises:
Modulation and transmitter module are used to receive the user's voice video information, and described voice and video information is carried out frequency modulation modulation back emission;
The FM reception module is used for the modulation of receiving target portable terminal and the voice and video information that transmitter module is launched, and described voice and video information is carried out playing after the demodulation.
2. portable terminal according to claim 1 is characterized in that, also comprises:
Handover module, described handover module is connected with described wireless communication module with described video intercom module, be used for switching described video intercom module of selection or described wireless communication module, described portable terminal is switched between wireless communication mode and video intercom pattern according to switching signal.
3. portable terminal according to claim 2 is characterized in that, also comprises:
The network state detection module is used to detect external wireless network of network state;
First generation module is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to detected network state.
4. portable terminal according to claim 3 is characterized in that, described first generation module comprises:
First produces submodule, is used for detecting when being lower than threshold value less than external wireless network or the state parameter that detects network state when described network state detection module, and generation switches to the switching signal of described video intercom pattern;
Second produces submodule, is used for when state parameter that described network state detection module detects network state is not less than described threshold value, and generation switches to the switching signal of described wireless communication mode.
5. portable terminal according to claim 2 is characterized in that, also comprises:
Input unit is used to receive the selection signal to described wireless communication mode or described video intercom pattern that the user imports;
The 3rd produces module, is used for being created in the switching signal of switching between described wireless communication mode and the described video intercom pattern according to described selection signal.
6. according to each described portable terminal of claim 1 to 5, it is characterized in that, also comprise microphone, loud speaker, camera and display screen, described modulation and transmitter module receive the user's voice video information by described microphone and described camera, and the voice and video information after the demodulation is play by described loud speaker and described display screen.
7. portable terminal according to claim 6 is characterized in that, also comprises the modulation antenna, the voice and video information after described modulation and transmitter module are modulated by described modulation antenna emission;
Described FM reception module is by the voice and video information of described modulation antenna receiving target portable terminal.
8. the means of communication of a portable terminal are applied to comprise in the portable terminal of wireless communication module and video intercom module, it is characterized in that, comprising:
Under first mode of operation, described portable terminal carries out wireless telecommunications by external wireless network and destination mobile terminal;
Under second mode of operation, described portable terminal receives the user's voice video information, and described voice and video information carried out frequency modulation modulation back emission, and the voice and video information of receiving target portable terminal emission, and described voice and video information carried out playing after the demodulation.
9. the means of communication according to claim 8 is characterized in that, also comprise:
Detect external wireless network of network state;
Make described portable terminal switch to the switching signal of wireless communication mode or video intercom pattern according to detected network state generation;
Switch described wireless communication module of selection or described video intercom module according to described switching signal.
10. the means of communication according to claim 9 is characterized in that, the described switching signal that makes described portable terminal switch to wireless communication mode or video intercom pattern according to detected network state generation specifically comprises:
Make described portable terminal switch to the switching signal of video intercom pattern when detecting when being lower than threshold value, producing less than external wireless network or the state parameter that detects network state;
When the state parameter that detects network state was not less than described threshold value, generation made described portable terminal switch to the switching signal of wireless communication mode.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010170797A CN101860620A (en) | 2010-05-06 | 2010-05-06 | Mobile terminal and communication method thereof |
| PCT/CN2010/076852 WO2011137615A1 (en) | 2010-05-06 | 2010-09-13 | Mobile terminal and communication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010170797A CN101860620A (en) | 2010-05-06 | 2010-05-06 | Mobile terminal and communication method thereof |
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| CN101860620A true CN101860620A (en) | 2010-10-13 |
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| CN201010170797A Pending CN101860620A (en) | 2010-05-06 | 2010-05-06 | Mobile terminal and communication method thereof |
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| WO (1) | WO2011137615A1 (en) |
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| CN102176745A (en) * | 2011-02-10 | 2011-09-07 | 梁清亮 | Wireless visual inter-conversation doorbell system |
| CN102143273A (en) * | 2011-04-29 | 2011-08-03 | 惠州Tcl移动通信有限公司 | Mobile phone and method for realizing frequency modulation (FM) broadcast communication of mobile phone |
| CN102346645A (en) * | 2011-09-19 | 2012-02-08 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and slide demonstration system and method |
| CN102346645B (en) * | 2011-09-19 | 2014-08-27 | 惠州Tcl移动通信有限公司 | Mobile communication terminal and slide demonstration system and method |
| CN104113633B (en) * | 2013-04-22 | 2016-05-11 | 联想移动通信科技有限公司 | Utilize FM to realize method and the mobile terminal of communication between mobile terminal |
| CN104113633A (en) * | 2013-04-22 | 2014-10-22 | 联想移动通信科技有限公司 | Method for realizing communication between mobile terminals by use of FM and mobile terminal |
| CN104837111A (en) * | 2015-03-30 | 2015-08-12 | 深圳市万维智联科技有限公司 | Method and system for switching communication system dynamically via intelligent terminal |
| CN107786688B (en) * | 2016-08-26 | 2020-12-18 | 展讯通信（上海）有限公司 | Mobile terminal with interphone function |
| CN107786688A (en) * | 2016-08-26 | 2018-03-09 | 展讯通信（上海）有限公司 | Mobile terminal with intercom function |
| CN108134730A (en) * | 2016-12-01 | 2018-06-08 | 阿里巴巴集团控股有限公司 | The means of communication and device |
| CN107147421A (en) * | 2017-06-19 | 2017-09-08 | 泉州欧讯电子有限公司 | A kind of double mode intercom |
| CN107147421B (en) * | 2017-06-19 | 2024-03-19 | 泉州欧讯电子有限公司 | Dual-mode interphone |
| CN107395462A (en) * | 2017-08-30 | 2017-11-24 | 深圳市瑞研通讯设备有限公司 | A kind of IPTV testers |
| CN107395462B (en) * | 2017-08-30 | 2021-08-10 | 深圳市瑞研通讯设备有限公司 | IPTV tester |
| CN107911645A (en) * | 2017-12-29 | 2018-04-13 | 北京九方广维科技有限公司 | Double-purpose video intercom system and its intercommunication method based on WiFi |
| CN108600678A (en) * | 2017-12-29 | 2018-09-28 | 北京九方广维科技有限公司 | Vehicular video intercom and data processing method based on FM short-distance transmissions |
| CN108566530A (en) * | 2017-12-29 | 2018-09-21 | 北京九方广维科技有限公司 | Double-purpose video intercom system based on bluetooth and its intercommunication method |
| CN108989525A (en) * | 2018-07-27 | 2018-12-11 | 合肥阅辞科技有限公司 | A kind of cell phone and communication means with wireless communication function |
| WO2020251486A1 (en) * | 2019-06-14 | 2020-12-17 | Uestuen Murat Buelent | A mobile demonstration system and method |
| CN112448779A (en) * | 2019-08-29 | 2021-03-05 | 青岛海信移动通信技术股份有限公司 | Intelligent terminal equipment and method for carrying out talkback communication |
| CN112448779B (en) * | 2019-08-29 | 2023-01-03 | 青岛海信移动通信技术股份有限公司 | Intelligent terminal equipment and method for carrying out talkback communication |
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| WO2011137615A1 (en) | 2011-11-10 |
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