CN102624963B - Mobile phone with full duplex wireless intercom function, and implementation method thereof - Google Patents
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Abstract
The invention discloses a mobile phone with a full duplex wireless intercom function, and an implementation method thereof. The mobile phone comprises a housing, a motherboard, a microprocessor controller (101), a display screen (102), a radio frequency module, a memory (103) and a power management unit, and further comprises a full duplex intercom module connected with the microprocessor controller (101). The implementation method comprises upstream steps and downstream steps. According to the invention, the problem of inconvenience in carrying an intercom and a mobile phone simultaneously in the prior art is solved, and an intercom function is provided for the mobile phone. In situations where calls are frequent and relatively fixed, with the invention, call charge can be reduced, call cost is reduced, more rich application functions are added into the mobile phone, and market scale can be expanded.
Description
Technical field
The present invention relates to telecommunications field, relate in particular to a kind of mobile phone and its implementation with full duplex radio intercommunication function.
Background technology
Intercom, English name is two way radio, is a kind of bidirectional mobile communication instrument, without any need for network support in the situation that, just can converse, and does not have telephone expenses to produce, and is suitable for relatively fixing and the frequent occasion use of talking with of needs.China Intellectual Property Office discloses a kind of intercom on March 18th, 2009, its publication number is CN 201403123, this intercom comprises key-press module, light emitting module, and the control module being connected with described key-press module, described light emitting module respectively, described control module receives the actuation of keys signal of described key-press module, and controlling described light emitting module, to carry out distress signal luminous.Though this intercom can directly be cried for help by this intercom, be convenient for people to operation, avoid, because the dangerous situation that emergency operation causes not in time worsens, further having ensured people's safety of life and property.
But along with the development of the universal and mechanics of communication of mobile phone, people carry and requisite equipment or mobile phone, and the call that is generally used for making a phone call of bluetooth equipment on mobile phone is used.Two mobile phones are designated as respectively to mobile phone 1 and mobile phone 2, and mobile phone 1, by the network of mobile communication, carries out voice communication with mobile phone 2, and mobile phone 1 can be connected to a bluetooth equipment.But between mobile phone 1 and bluetooth equipment, can not carry out voice call, as talked with mobile phone in occasion relatively fixing and frequently dialogue, telephone expenses cost is higher again.There is the function of intercom if any a kind of mobile phone, not only can realize frequent dialogue but also can save telephone expenses, and without carrying in addition other equipment, be satisfactory to both parties neat U.S..
Summary of the invention
The object of this invention is to provide a kind of mobile phone and its implementation with full duplex radio intercommunication function.
The mobile phone with full duplex radio intercommunication function provided by the present invention, comprises housing, mainboard, microprocessor controller (101), display screen (102), radio-frequency module, memory (103) and Power Management Unit; Also comprise the full duplex intercommunication module being connected with described microprocessor controller (101).
Described full duplex intercommunication module comprises the first audio frequency input module (104), the first audio frequency output module (106), bluetooth module, bluetooth earphone (200), and the first receiver (107) and the first microphone (105), described the first audio frequency input module (104), the first audio frequency output module (106), bluetooth module, the first receiver (107) and the first microphone (105) are all arranged on mainboard and are located at the inside of described housing; Described first audio frequency input module (104) one end is connected with described microprocessor controller (101) and the other end is connected with described the first receiver (107); Described first audio frequency output module (106) one end is connected with described microprocessor controller (101) and the other end is connected with described the first microphone (105); Described bluetooth module one end be connected with described microprocessor controller (101) circuit and the other end and described bluetooth earphone (200) by Bluetooth signal wireless connections.
Implementation method provided by the present invention comprises up step, and descending step.
Described up step comprises successively:
15) step of cellphone subscriber's input audio signal;
16) step that mobile phone is processed audio signal;
17) mobile phone sends to audio signal the step of bluetooth earphone;
18) bluetooth earphone processes and exports to bluetooth earphone user's step to audio signal;
Described descending step comprises successively:
21) step of bluetooth earphone user input audio signal;
22) step that bluetooth earphone is processed audio signal;
23) bluetooth earphone sends to audio signal the step of mobile phone;
24) cellphone subscriber's step processed and exports to by mobile phone to audio signal;
Mobile phone and its implementation with full duplex radio intercommunication function provided by the present invention, solve intercom and mobile phone in prior art and carried inconvenient problem simultaneously, allow mobile phone there is the function of intercommunication, conversing frequently and more fixing occasion, use the present invention can save telephone expenses, reduce call cost, for mobile phone has increased abundanter application function, can expand market scale.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram that the present invention has the mobile phone of full-duplex intercommunication function;
Fig. 2 is the Bluetooth earphone circuit structural representation described in Fig. 1.
Embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
As shown in Figure 1, a kind of mobile phone with full duplex radio intercommunication function, comprises housing, mainboard, microprocessor controller 101, display screen 102, radio-frequency module, memory 103 and Power Management Unit; It is characterized in that: also comprise the full duplex intercommunication module being connected with described microprocessor controller 101.
Described full duplex intercommunication module comprises that the first audio frequency input module 104, the first audio frequency output module 106, embedded with bluetooth module, bluetooth earphone 200, the first receivers 107 and the first microphone 105, described the first audio frequency input module 104, the first audio frequency output module 106, embedded with bluetooth module, the first receiver 107 and the first microphone 105 are all arranged on mainboard and are located at the inside of described housing; Described first audio frequency input module 104 one end are connected with described microprocessor controller 101 and the other end is connected with described the first receiver 107; Described first audio frequency output module 106 one end are connected with described microprocessor controller 101 and the other end is connected with described the first microphone 105; Described embedded with bluetooth module one end be connected with described microprocessor controller 101 circuit and the other end and described bluetooth earphone 200 by Bluetooth signal wireless connections.It will be understood by those skilled in the art that while use, user is enclosed within described bluetooth earphone 200 on ear, wireless receiving audio signal.
Described embedded with bluetooth module comprises Bluetooth control chip 108, the first radio-frequency power amplifier and the first antenna 111, described Bluetooth control chip 108 one end are connected with described microprocessor controller 101 circuit and the other end is connected with one end of described the first radio-frequency power amplifier, and the other end of described the first radio-frequency power amplifier is connected with described the first antenna 111.
Described full duplex intercommunication module also comprises a pulse code modulation interface pcm interface, and one end of described pulse code modulation interface pcm interface is connected with described microprocessor controller 101 and the other end is connected with described Bluetooth control chip 108.
Described the first radio-frequency power amplifier comprises the first transmit amplifier 110 and the first reception amplifier 109, and one end of one end of described the first transmit amplifier 110 and described the first reception amplifier 109 is connected with described Bluetooth control chip 108 respectively; The other end of the other end of described the first transmit amplifier 110 and described the first reception amplifier 109 is connected with described the first antenna 111 respectively.
As shown in Figure 2, described bluetooth earphone 200 comprises the second receiver 201, the second microphone 205, the second audio frequency input module 206, the second audio frequency output module 202, modulation circuit 207, demodulator circuit 203, the second radio-frequency power amplifier and the second antenna 209; Described the second receiver 201, described the second audio frequency output module 202, described demodulator circuit 203 successively circuit connect, described the second microphone 205, described the second audio frequency input module 206 and described modulation circuit 207 successively circuit connect, and one end of described the second radio-frequency power amplifier is with described modulation circuit 207 and described demodulator circuit 203 is connected respectively and the other end is connected with described the second antenna 209.
Described the second radio-frequency power amplifier comprises the second reception amplifier 204 and the second transmit amplifier 208, and one end of described the second reception amplifier 204 is connected with described demodulator circuit 203 and the other end is connected with described the second antenna 209; One end of described the second transmit amplifier 208 is connected with described modulation circuit 207 and the other end is connected with described the second antenna 209.
It will be appreciated by those skilled in the art that, the present invention has the mobile phone of full duplex radio intercommunication function, the implementation procedure of its ascender is: user inputs simulated audio signal by the first microphone 105, this simulated audio signal sends to described microprocessor controller 101 by described the first audio frequency input module 104, described microprocessor controller 101 carries out pulse code modulation to it after receiving this simulated audio signal, form pcm digital audio signal, and send to described Bluetooth control chip 108 by described pulse code modulation interface pcm interface.Described Bluetooth control chip 108 is controlled described the first transmit amplifier 110 described digital audio and video signals is carried out to power amplification, send to described bluetooth earphone 200 by described the first antenna 111 again, described bluetooth earphone 200 sends to described the second reception amplifier 204 after receiving this audio signal by described the second antenna 209, described the second reception amplifier 204 sends to described demodulator circuit 203 after this audio signal is amplified, this audio signal is demodulated into analog signal by demodulator circuit 203, send to described the second receiver 201 by described the second audio frequency output module 202, thereby the user who makes bluetooth earphone 200 receives described cellphone subscriber's voice.
The implementation procedure of its descender is: user inputs simulated audio signal by the second microphone 205, after this simulated audio signal sends to described modulation circuit 207 to modulate by described the second audio frequency input module 206, send to described the second transmit amplifier 208, described the second transmit amplifier 208 carries out carrying out wireless transmission through described the second antenna 209 after power amplification to this audio signal, described mobile phone receives after this audio signal by described the first antenna 111, after this audio signal being amplified by described the first reception amplifier 109, send to described Bluetooth control chip 108, this audio signal is demodulated into pulse code digital signal PCM signal by described Bluetooth control chip 108, and pass to described microprocessor controller 101 by described pulse code modulation interface pcm interface, this digital audio and video signals is converted to simulated audio signal by described microprocessor controller 101, send to described the first receiver 107 to export by described the first audio frequency output module 106 again.Cellphone subscriber just receives bluetooth earphone 200 users' voice like this.
Communication frequency between described bluetooth earphone 200 and the first antenna 111 is 2.4GHz ISM.
Communication bandwidth between described bluetooth earphone 200 and described the first antenna 111 is 2Mbps.
The power output of described the first radio-frequency power amplifier device is 4dBm.
Between described the first reception amplifier 109 and described the first antenna 111, be also connected with the first filter circuit, it will be appreciated by those skilled in the art that, described the first antenna 111 is in receiving audio signal, can receive some noises, described the first filter circuit is used for filtering out described noise, prevents that described the first reception amplifier 109 from together amplifying described noise.
For preventing that described the first reception amplifier 109 from amplifying the noise of wireless transmission process.
Between described the second reception amplifier 204 and described the second antenna 209, be also connected with the second filter circuit, in like manner, described the second antenna 209 is in receiving audio signal, also can receive some noises, described the second filter circuit is used for filtering out described noise, prevents that described the second reception amplifier 204 from together amplifying described noise.
Embodiment bis-
The present embodiment two provides the implementation method of the mobile phone with full duplex radio intercommunication function described in above-described embodiment one, comprises up step, and described up step is followed successively by:
19) step of cellphone subscriber's input audio signal;
20) step that mobile phone is processed audio signal;
21) mobile phone sends to audio signal the step of bluetooth earphone;
22) bluetooth earphone processes and exports to bluetooth earphone user's step to audio signal;
Described implementation method also comprises descending step, and described descending step is followed successively by:
21) step of bluetooth earphone user input audio signal;
22) step that bluetooth earphone is processed audio signal;
23) bluetooth earphone sends to audio signal the step of mobile phone;
24) cellphone subscriber's step processed and exports to by mobile phone to audio signal;
Described step 11) step of cellphone subscriber's input audio signal comprises: user is facing to mobile phone microphone sounding, input simulated audio signal.
Described step 12) mobile phone step that audio signal is processed comprises successively:
Step 121) simulated audio signal sends to described microprocessor controller by described the first audio frequency input module;
Step 122) described microprocessor controller carries out pulse code modulation to simulated audio signal, and form pcm digital audio signal, and send to Bluetooth control chip by described pulse code modulation interface;
Step 123) Bluetooth control chip controls the first transmit amplifier carries out power amplification and sends to first day line digital audio and video signals.
Described step 13) mobile phone sends to the step of bluetooth earphone to comprise successively audio signal:
Step 131) digital audio and video signals of the first transmit amplifier output described in the first antenna reception;
Step 132) digital audio and video signals described in the first antenna wireless transmission.
Described step 14) the bluetooth earphone step of audio signal being processed and exported to bluetooth earphone user comprises successively:
Step 141) described bluetooth earphone is by digital audio and video signals described in described the second antenna reception, and send to described the second reception amplifier;
Step 142) described the second reception amplifier carries out power amplification and sends to described demodulator circuit described digital audio and video signals;
Step 143) described demodulator circuit is demodulated into simulated audio signal by described digital audio and video signals, and sends to the second receiver by the second audio frequency output module;
Step 144) the second receiver exports described simulated audio signal.
Described step 21) step of bluetooth earphone user input audio signal comprises: user is facing to the second microphone sounding of bluetooth earphone, input simulated audio signal.
Described step 22) bluetooth earphone step that audio signal is processed comprises successively:
Step 221) simulated audio signal sends to described modulation circuit by described the second audio frequency input module;
Step 222) described modulation circuit is modulated into digital audio and video signals by this simulated audio signal, and sends to the second transmit amplifier;
Step 223) the second transmit amplifier carries out sending to described the second antenna after power amplification to described digital audio and video signals;
Described step 23) bluetooth earphone sends to the step of mobile phone to comprise successively audio signal:
Step 231) digital audio and video signals of the second transmit amplifier output described in described the second antenna reception;
Step 232) described the second antenna wireless sends described digital audio and video signals.
Described step 24) the mobile phone step of audio signal being processed and exported to cellphone subscriber comprises successively:
Step 241) described mobile phone receives described digital audio and video signals and sent to described the first reception amplifier by the first antenna;
Step 242) the first reception amplifier carries out power amplification and sends to described Bluetooth control chip described digital audio and video signals;
Step 243) described Bluetooth control chip by described digital audio and video signals be demodulated into pulse code digital signal (PCM signal) and send to microprocessor controller by pulse code modulation interface (pcm interface));
Step 244) described pulse code digital signal is converted to analog signal by microprocessor controller, sends to the first receiver by described the first audio frequency output module;
Step 245) receiver exports described analog signal.
Described step 24) mobile phone processes and exports to cellphone subscriber's step to audio signal, before the first reception amplifier carries out power amplification to described digital audio and video signals, also comprise the step that signal that the first filter circuit receives the first antenna carries out filtering.
Described step 14) bluetooth earphone processes and exports to bluetooth earphone user's step to audio signal, before the second reception amplifier carries out power amplification to described digital audio and video signals, also comprise the second filter circuit to the second antenna reception to the signal step of carrying out filtering.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (17)
1. there is a mobile phone for full duplex radio intercommunication function, comprise housing, mainboard, microprocessor controller (101), display screen (102), radio-frequency module, memory (103), Power Management Unit and full duplex intercommunication module; It is characterized in that: described full duplex intercommunication module comprises the first audio frequency input module (104), the first audio frequency output module (106), bluetooth module, bluetooth earphone (200), the first receiver (107) and the first microphone (105), described the first audio frequency input module (104), the first audio frequency output module (106), bluetooth module, the first receiver (107) and the first microphone (105) are all arranged on mainboard and are located at the inside of described housing; Described first audio frequency input module (104) one end is connected with described microprocessor controller (101) and the other end is connected with described the first receiver (107); Described first audio frequency output module (106) one end is connected with described microprocessor controller (101) and the other end is connected with described the first microphone (105); Described bluetooth module one end be connected with described microprocessor controller (101) circuit and the other end and described bluetooth earphone (200) by Bluetooth signal wireless connections; Described bluetooth module comprises Bluetooth control chip (108), the first radio-frequency power amplifier and the first antenna (111), described Bluetooth control chip (108) one end is connected with described microprocessor controller (101) circuit and the other end is connected with one end of described the first radio-frequency power amplifier, and the other end of described the first radio-frequency power amplifier is connected with described the first antenna (111).
2. the mobile phone with full duplex radio intercommunication function as claimed in claim 1, it is characterized in that: described full duplex intercommunication module also comprises a pulse code modulation interface, one end of described pulse code modulation interface is connected with described microprocessor controller (101) and the other end is connected with described Bluetooth control chip (108).
3. the mobile phone with full duplex radio intercommunication function as claimed in claim 2, it is characterized in that: described the first radio-frequency power amplifier comprises the first transmit amplifier (110) and the first reception amplifier (109), one end of one end of described the first transmit amplifier (110) and described the first reception amplifier (109) is connected with described Bluetooth control chip (108) respectively; The other end of the other end of described the first transmit amplifier (110) and described the first reception amplifier (109) is connected with described the first antenna (111) respectively.
4. the mobile phone with full duplex radio intercommunication function as claimed in claim 3, is characterized in that: described bluetooth earphone (200) comprises the second receiver (201), the second microphone (205), the second audio frequency input module (206), the second audio frequency output module (202), modulation circuit (207), demodulator circuit (203), the second radio-frequency power amplifier and the second antenna (209); Described the second receiver (201), described the second audio frequency output module (202), described demodulator circuit (203) successively circuit connect, described the second microphone (205), described the second audio frequency input module (206) and described modulation circuit (207) successively circuit connect, and one end of described the second radio-frequency power amplifier is connected respectively with described modulation circuit (207) and described demodulator circuit (203) and the other end is connected with described the second antenna (209).
5. the mobile phone with full duplex radio intercommunication function as claimed in claim 4, it is characterized in that: described the second radio-frequency power amplifier comprises the second reception amplifier (204) and the second transmit amplifier (208), one end of described the second reception amplifier (204) is connected with described demodulator circuit (203) and the other end is connected with described the second antenna (209); One end of described the second transmit amplifier (208) is connected with described modulation circuit (207) and the other end is connected with described the second antenna (209).
6. the mobile phone with full duplex radio intercommunication function as claimed in claim 5, is characterized in that: the communication frequency between described bluetooth earphone (200) and the first antenna (111) is 2.4GHz ISM; Communication bandwidth between described bluetooth earphone (200) and described the first antenna (111) is 2Mbps; The power output of described the first radio-frequency power amplifier is 4dBm.
7. the mobile phone with full duplex radio intercommunication function as claimed in claim 6, is characterized in that: between described the first reception amplifier (109) and described the first antenna (111), be also connected with the first filter circuit.
8. the mobile phone with full duplex radio intercommunication function as claimed in claim 7, is characterized in that: between described the second reception amplifier (204) and described the second antenna (209), be also connected with the second filter circuit.
9. an implementation method for the mobile phone with full duplex radio intercommunication function as claimed in claim 8, comprises up step, and descending step, and described up step comprises successively:
11) step of cellphone subscriber's input audio signal;
12) step that mobile phone is processed audio signal;
13) mobile phone sends to audio signal the step of bluetooth earphone;
14) bluetooth earphone processes and exports to bluetooth earphone user's step to audio signal;
Described descending step comprises successively:
21) step of bluetooth earphone user input audio signal;
22) step that bluetooth earphone is processed audio signal;
23) bluetooth earphone sends to audio signal the step of mobile phone;
24) cellphone subscriber's step processed and exports to by mobile phone to audio signal.
Described step 12) comprises successively:
Step 121) simulated audio signal sends to described microprocessor controller by described the first audio frequency input module;
Step 122) described microprocessor controller carries out pulse code modulation to simulated audio signal, and form pcm digital audio signal, and send to Bluetooth control chip by described pulse code modulation interface;
Step 123) Bluetooth control chip controls the first transmit amplifier carries out power amplification and sends to first day line digital audio and video signals.
10. implementation method as claimed in claim 9, is characterized in that, described step 13) comprises successively:
Step 131) digital audio and video signals of the first transmit amplifier output described in the first antenna reception;
Step 132) digital audio and video signals described in the first antenna wireless transmission.
11. implementation methods as claimed in claim 9, is characterized in that, described step 14) comprises successively:
Step 141) described bluetooth earphone is by digital audio and video signals described in described the second antenna reception, and send to described the second reception amplifier;
Step 142) described the second reception amplifier carries out power amplification and sends to described demodulator circuit described digital audio and video signals;
Step 143) described demodulator circuit is demodulated into simulated audio signal by described digital audio and video signals, and sends to the second receiver by the second audio frequency output module;
Step 144) the second receiver exports described simulated audio signal.
12. implementation methods as claimed in claim 9, is characterized in that, described step 21) comprising: user, facing to the second microphone sounding of bluetooth earphone, inputs simulated audio signal.
13. implementation methods as claimed in claim 9, is characterized in that, described step 22) comprise successively:
Step 221) simulated audio signal sends to described modulation circuit by described the second audio frequency input module;
Step 222) described modulation circuit is modulated into digital audio and video signals by this simulated audio signal, and sends to the second transmit amplifier;
Step 223) the second transmit amplifier carries out sending to described the second antenna after power amplification to described digital audio and video signals.
14. implementation methods as claimed in claim 9, is characterized in that, described step 23) comprise successively:
Step 231) digital audio and video signals of the second transmit amplifier output described in described the second antenna reception;
Step 232) described the second antenna wireless sends described digital audio and video signals.
15. implementation methods as claimed in claim 9, is characterized in that, described step 24) comprise successively:
Step 241) described mobile phone receives described digital audio and video signals and sent to described the first reception amplifier by the first antenna (111);
Step 242) the first reception amplifier carries out power amplification and sends to described Bluetooth control chip described digital audio and video signals;
Step 243) described Bluetooth control chip is demodulated into described digital audio and video signals pulse code digital signal and sends to microprocessor controller by pulse code modulation interface;
Step 244) described pulse code digital signal is converted to analog signal by microprocessor controller, sends to the first receiver by described the first audio frequency output module;
Step 245) receiver exports described analog signal.
16. implementation methods as claimed in claim 10, is characterized in that, also comprise: before the second reception amplifier carries out power amplification to described digital audio and video signals, also comprise the second filter circuit to the second antenna reception to the signal step of carrying out filtering.
17. implementation methods as claimed in claim 14, is characterized in that, also comprise: before the first reception amplifier carries out power amplification to described digital audio and video signals, also comprise the step that signal that the first filter circuit receives the first antenna carries out filtering.
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| CN103533716A (en) * | 2013-10-25 | 2014-01-22 | 深圳市镭润科技有限公司 | Control method, controlled equipment and control equipment based on Bluetooth communication technology |
| CN107911808B (en) * | 2017-11-15 | 2020-08-25 | 深圳市鑫王牌科技发展有限公司 | Communication system and communication method for realizing analog talkback based on mobile phone terminal |
| CN109874116A (en) * | 2017-12-05 | 2019-06-11 | 北京小米移动软件有限公司 | Information transferring method and device, mobile network's communication apparatus |
| CN108718332A (en) * | 2018-05-09 | 2018-10-30 | 杭州能尔科技有限公司 | A kind of data transmission interactive communication system |
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| CN1997039A (en) * | 2006-01-06 | 2007-07-11 | 乐金电子(中国)研究开发中心有限公司 | Bluetooth handset as the wireless audio output earphone |
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Address after: 201203 Shanghai City, Pudong New Area Zhangjiang hi tech Park Keyuan Road No. 399 Building No. 1 Patentee after: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. Address before: 201203 Shanghai City, Pudong New Area Zhangjiang hi tech Park Keyuan Road No. 399 Building No. 1 Patentee before: SHANGHAI HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |
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Address after: 201203 Shanghai City, Pudong New Area Zhangjiang hi tech Park Keyuan Road No. 399 Building No. 1 Patentee after: Huaqin Technology Co.,Ltd. Address before: 201203 Shanghai City, Pudong New Area Zhangjiang hi tech Park Keyuan Road No. 399 Building No. 1 Patentee before: Huaqin Technology Co.,Ltd. Address after: 201203 Shanghai City, Pudong New Area Zhangjiang hi tech Park Keyuan Road No. 399 Building No. 1 Patentee after: Huaqin Technology Co.,Ltd. Address before: 201203 Shanghai City, Pudong New Area Zhangjiang hi tech Park Keyuan Road No. 399 Building No. 1 Patentee before: HUAQIN TELECOM TECHNOLOGY Co.,Ltd. |