CN1225465A - Speech communication computer and use thereof - Google Patents
Speech communication computer and use thereof Download PDFInfo
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- CN1225465A CN1225465A CN 99116028 CN99116028A CN1225465A CN 1225465 A CN1225465 A CN 1225465A CN 99116028 CN99116028 CN 99116028 CN 99116028 A CN99116028 A CN 99116028A CN 1225465 A CN1225465 A CN 1225465A
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Abstract
The invention relates to a voice communication computer with PC computer, voice card, modulator-demodulator unit and its method. The structure characteristics are: telephone communication port and data exchange interface connected to the computer bus are set on the voice card, real-time control software is set inter the computer to convert analog signal into digital signal and compress it then to transmit it to Internet. The callee decompresses the received digital signal and restores it into voice analog signal which is sent into the telephone set of callee. The invention utilizes common city telephone or mobile telephone to realize real-time voice communication by Internet with any place in the world needn't permanent IP address. The communication expense is according to the collect fees standard of city telephone.
Description
The present invention relates to a kind of computer, particularly a kind of speech communication computer and uses thereof, belong to the Computer and Its Application technical field.
Along with developing rapidly of computing machine and interfacing thereof and popularizing deeply of Internel network communications technology, utilizing PC type computer to carry out long-distance cheap telephonic communication becomes a reality, the method of utilizing PC type computer to carry out long distance phone call at present mainly comprises following two kinds: a kind of is that computer is to computer, second kind is that computer is to phone, these two kinds of methods use microphone as voice-input device, loudspeaker on the computer or earphone are as output device, the former main representative products has Iphone, NetMeeting etc., is characterized in that cost of the phone call is low; The latter's main representative products has Net2phone, VocalTec etc., is characterized in that user one side must operate on computers, and by using third-party service, the other side uses plain old telephone can carry out both sides' conversation, and communication fee is low.But there is following shortcoming in described two kinds of methods: it is big to take the bandwidth width, the communication sound effect is poor, the speech quality instability, effect is poorer when network is busy, and a both call sides or a side must directly operate on computers, can not resemble making a phone call usually direct at the phone hands-operation, install and complicated operating process, the user must have certain computer professional knowledge.
Purpose of the present invention, be that prior art communication sound effect is poor in order to overcome, the shortcoming of speech quality instability, installation and complicated operation, provide that a kind of communication sound effect is good, speech quality stable, installation and speech communication computer easy to operate, with low cost, that on ordinary telephone set, realize speech communication.
Purpose of the present invention can reach by taking following measure: a kind of speech communication computer, comprise PC type computer, sound card, modulator-demodular unit, computer mainly comprises CPU, motherboard, hard disk, floppy drive, internal memory, display and built-in WINDOWS operating system etc., the serial communication interface of computer is connected with Internet by modulator-demodular unit, its design feature is: sound card is provided with the telephonic communication mouth, data exchange interface, data exchange interface connects the XT/AT bus of computer, the built-in real-time communication Control Software of computer, this real-time communication Control Software can be passed through computer, sound card is finished following work:
(1) drives sound card and connect calling party's the voice computer and the communication channel of telephone set, telephone signal is sent into Internet, seek and determine the dynamic IP addressing of the side talked about according to the telephone number of the side talked about, according to this dynamic IP addressing to being subjected to words side to send call request, after obtaining the positive reply signal, prepare to begin conversation;
(2) after the conversation beginning, calculation of talk time and cost of the phone call will be converted into digital signal from the voice analog signal of calling party's telephone system, and compress automatically;
(2) aforementioned compressed digital signal is sent to Internet by our computer, modulator-demodular unit;
(3) speech communication computer of the driving side talked about receives the calling party also is reduced into this digital signal decompression the calling party from the digital signal of Internet transmission voice analog signal;
(4) drive sound card the voice analog signal that is reduced is sent into the on-site telephone system in the side talked about until the telephone set of being talked about the telephone number place;
(5) control data bandwidth width is that 2.4～2.8k/s, communication delay time are 250～500ms.
Purposes of the present invention is: use common local call or mobile phone by realizing the real-time voice communication at Internet, and do not need fixed ip address, do not need the data dedicated line, can and in the world any old place realize communication between language in real time, communication fee is pressed the local call scale fee.
Purpose of the present invention also can reach by taking following measure:
Sound card is by bus controller, processor controls, shared drive, code/Data Dynamic internal memory, digital signal processor, the line interface of digital signal processing internal memory and the identification of reel number sign indicating number is formed by connecting, wherein: the data line of bus controller connects the data line of computer respectively, the data line of shared drive, the data line of code/Data Dynamic internal memory, the data line of digital signal processor, the data line of the line interface of reel number sign indicating number identification, the data line of shared drive connects the data line of computer, the middle broken ends of fractured bone of processor controls connects the middle broken ends of fractured bone of computer, the control end of control end connecting bus controller, the data line of digital signal processor connects the data line of digital signal processing internal memory respectively, the data line of the line interface of reel number sign indicating number identification, the I/O mouth of the data line of the line interface of reel number sign indicating number identification connects the telephone system wiring.
Compared with prior art the present invention has following outstanding effect:
1. the equipment purchasing expense is low, only needs several ten thousand yuan just can equip in traditional prior art the telephone communication equipment that need at least just can be purchased with hundreds of thousands unit.
2. communication voice quality height: the ratio of compression of the IP phone of prior art is 8～12k/s, and ratio of compression of the present invention is 2.4～2.8k/s, the bandwidth that data compression ratio height, contrast prior art take is narrow, voice of the present invention are delayed little (being controlled in the 100ms) simultaneously, therefore the present invention can realize clear, smooth speech communication on Internet, subjective sensation meets or exceeds common mobile voice quality, and non-peak period reaches the voice quality of common wire telephony.
3. must use fixed IP addresses just can carry out the real-time voice communication in the prior art, and use fixed IP addresses just must use such as dedicated lines such as DDN Leased lines, the usage charges of this class dedicated line are generally all very high, at least wanted several thousand yuan even several ten thousand yuan in every month, the present invention changes the practice that must use private ip address in the prior art, use dynamic IP addressing revolutionaryly, only need to use city ordinary telephone wiring or mobile phone just can carry out the real-time voice communication, and can make a telephone call to has any old place of internet in the world, and every month telephone charge only needs about 300 yuan.
4. multiple functional, the real-time voice communication can not only be provided, and common computers such as telephonic communication accounting system, fax can be provided as required.
5. mounting, commissioning and maintenance is convenient, and the user only needs power lead and telephone wire are connected, and start back input number of the account and password are just finished installment work, and the user need not possess computer knowledge.Need not operate yet, only need to use any telephone set or mobile phone just can play the world/National calls to being subjected to the on-site any telephone set in words side in the face of computer.
Be the function comparison sheet of the present invention and prior art below:
| Ipgone Israel | The Nel2Phone U.S. | Aplio Singapore | The present invention's (enterprise is an example) China | |
| The user provides computer for oneself | Be | Be | Not | Not |
| Verbal system | Sound card and microphone | Sound card and microphone | The IDD telephone set | The local call machine |
| Computer knowledge | Need | Need | Do not need | Do not need |
| Other purposes | The general computer function of tool | The general computer function of tool | The general computer function of tool not | The general computer function of tool |
| Talking position | In the computer front | In the computer front | In Aplio box front | Any position that plain old telephone or mobile phone are arranged |
| Talking mode | Computer is to computer | Computer is to phone | Landline telephone is to landline telephone | Phone is to phone (landline telephone or mobile phone all can) |
| Speech quality | Still can, depend on mutually | Still can, depend on mutually | Generally, depend on the internet | Clear, smooth, reach or |
| The speed of networking | The speed of networking | Speed | Surpass domestic mobile phone quality | |
| Voice latency | More than 1000 milliseconds | More than 1000 milliseconds | More than 1000 milliseconds | 250～500 milliseconds |
| Coverage | Between 2 | Most of countries and regions, the whole world | Between 2 | Any phone of nearly all countries and regions |
| Applicability | Both call sides will have computer and corresponding software simultaneously | The side of getting needs computer, and the take over party only needs plain old telephone | Both sides must have box and phone simultaneously, can only converse one to one | Both sides only need telephone set, and the take over party can not have speech communication computer, but multi-way call |
| Install | Complicated, need certain computer knowledge | Complicated, need certain computer knowledge | Generally, need certain computer knowledge | Extremely simple, do not need computer knowledge |
| Use habit | Similar plain old telephone | Similar plain old telephone | Near plain old telephone | Similar plain old telephone |
| Closing speed | Generally | Generally | Slowly | Hurry up |
| Stability | Generally | Generally | Good | Good |
| Upgrading and expansion | Convenient | Convenient | Difficult | Extremely convenient, undertaken by the network management center Remote |
| Technical support | Have | Have | Have | Fine, phone or network remote control all can |
| Cost of the phone call (except that expenses of surfing Internet) | Freely | 0.1 more than dollar/minute | Need one minute IDD international long-distance telephone expense of consumer | Free or local call takes |
Describe the present invention below in conjunction with accompanying drawing:
Fig. 1 is a structured flowchart of the present invention.
Fig. 2 is the electrical schematic diagram of sound card of the present invention.
Fig. 3 is a workflow diagram of the present invention.
Fig. 4 is a real-time voice Communication Control software flow pattern of the present invention.
Fig. 5 is the synoptic diagram of application examples 1 of the present invention.
Fig. 6 is the synoptic diagram of application examples 2 of the present invention.
As can be seen from Figure 1, the present invention includes PC type computer 1, sound card 2, modem (MODEM) 3, computer 1 mainly comprises CPU, motherboard, hard disk, floppy drive, internal memory, display and built-in WINDOWS operating system etc., sound card 2 is connected with the ISA/PCI/EISA groove of computer 1, the serial communication interface of computer 1 is connected with Internet by modem (MODEM) 3, as can be seen from Figure 2, sound card 2 is by bus control unit 6, control processor 7, shared drive 8, code/Data Dynamic internal memory 9, digital signal processor 10, the line interface 12 of Digital Signal Processing internal memory 11 and column with number identification is formed by connecting, wherein: the data wire of bus control unit 6 connects respectively the data wire of computer 1, the data wire of shared drive 8, the data wire of code/Data Dynamic internal memory 9, the data wire of digital signal processor 10, the data wire of the line interface 12 of column with number identification, the data wire of shared drive 8 connects the data wire of computer 1, the middle broken ends of fractured bone of control processor 7 connects the middle broken ends of fractured bone of computer 1, control end connects the control end of bus control unit, the data wire of digital signal processor 10 connects respectively the data wire of Digital Signal Processing internal memory 11, the data wire of the line interface 12 of column with number identification, the I/O mouth of the line interface 12 of column with number identification connects the telephone system terminals.
As can be seen from Figure 3, this speech communication computer of real-time communication control software control is worked in the following order:
(1) calling party connects sound card 2 by telephone set, and sound card 2 is connected calling party's computer 1;
(2) calling party's computer 1 sends ' please input the other side's telephone number ' prompt tone to the calling party;
(3) calling party's computer 1 waits for that the calling party inputs the other side's telephone number, and after the telephone number input was complete, computer 1 was sent this telephone number and calling party's speech into Internet by modem (MODEM) 3;
(4) calling party passes through sound card (VCOM) 2 routing managements and host IP address management system, the dynamic IP addressing of judgement and definite destination speech communication computer;
(5) calling party's speech communication computer sends communication request according to the dynamic IP addressing of destination speech communication computer to this computer, wait destination computer is beamed back the affirmation signal that allows communication, after obtaining confirmation signal, automatically put through the recipient speech communication computer, begin conversation;
(6) calling party's sound becomes voice signal by telephone microphone, and this voice signal is sent to the sound card 2 of calling party's speech communication computer by telephone wire on the market or PBX, and enters the internal memory of computer 1 by sound card 2;
(7) VCOM, SPEECH, the CODEC compression driver in the real-time communication control software is transformed into data signal to the voice analog signal in the internal memory, and with its compression;
(8) according to the Internet ICP/IP protocol, after compression the data signal modem (MODEM) 3 by the calling party is entered Internet (INTERNET net), and enter the recipient speech communication computer;
(9) the recipient speech communication computer carries out decompression with the data signal that receives, and data signal is reduced into voice analog signal;
(10) voice signal that is reduced is delivered to the on-site telephone set of callee by the sound card 2 of recipient speech communication computer.
As can be seen from Figure 4, the on-off between real-time voice the communication control software control telephone system of the present invention and the speech communication computer 1 mainly comprises following action:
(1) seeks and determine the dynamic IP addressing of recipient voice computer according to the telephone number of recipient, send call request to the recipient voice computer;
(2) after the conversation beginning, calculation of talk time and cost of the phone call will be converted into data signal from the voice analog signal of telephone system, and compress automatically;
(3) compressed data signal is sent into Internet;
(4) speech communication computer of recipient receives aforementioned data signal from Internet, then this signal is advanced to decompress, and is reduced into voice analog signal;
(5) voice analog signal that is reduced is sent into the on-site telephone system of recipient until talked about the telephone set at telephone number place through sound card.
(6) control data communication frequency bandwidth is that 2.4～2.8k/s, communication delay time are 250～500ms.
Fig. 5, Fig. 6 are the structural representations of two application examples of the present invention.
As can be seen from Figure 5, should be with in the example 1, communication two party is all used speech communication computer, communication two party only needs modulator-demodular unit (MODEM) 3 is connected with international networking, I/O interface on the sound card 2 is connected with telephone set, just can on telephone set, carry out the real-time voice communication, and phone can be got in the world that any one has the place of Internet; I/O interface in the time of perhaps will speaking on the card connects local mobile communcations system, just can utilize the communication of mobile phone implementation real-time voice, and phone can be got in the world that any one has the place of Internet.
As can be seen from Figure 6, should have a side to have speech communication computer in the communication two party with in the example 2, not have a side of speech communication computer only to need to provide the voice forwarding service by the third party who has speech communication computer of the present invention among the figure, all the other be with embodiment 1.
Claims (3)
1. speech communication computer, comprise PC type computer (1), sound card (2), modulator-demodular unit (3), computer (1) mainly comprises CPU, motherboard, hard disk, floppy drive, internal memory, display and built-in WINDOWS operating system etc., the serial communication interface of computer (1) is connected with Internet by modulator-demodular unit (3), it is characterized in that: sound card (2) is provided with telephonic communication mouth (4), data exchange interface (5), data exchange interface (5) connects the XT/AT bus of computer (1), the built-in real-time communication Control Software of computer (1), this real-time communication Control Software can be passed through computer (1), sound card (2) is finished following work:
(1) drives sound card and connect calling party's the voice computer and the communication channel of telephone set, telephone signal is sent into Internet, seek and determine the dynamic IP addressing of the side talked about according to the telephone number of the side talked about, according to this dynamic IP addressing to being subjected to words side to send call request, after obtaining the positive reply signal, prepare to begin conversation;
(2) after the conversation beginning, calculation of talk time and cost of the phone call will be converted into digital signal from the voice analog signal of calling party's telephone system, and compress automatically;
(2) aforementioned compressed digital signal is sent to Internet by our computer (1), modulator-demodular unit (3);
(3) speech communication computer of the driving side talked about receives the calling party also is reduced into this digital signal decompression the calling party from the digital signal of Internet transmission voice analog signal;
(4) drive sound card the voice analog signal that is reduced is sent into the on-site telephone system in the side talked about until the telephone set of being talked about the telephone number place;
(5) control data bandwidth width is that 2.4～2.8k/s, communication delay time are 250～500ms.
2. the purposes of a kind of speech communication computer according to claim 1, it is characterized in that: use common local call or mobile phone by realizing the real-time voice communication at Internet, and do not need fixed ip address, do not need the data dedicated line, can and in the world any old place realize communication between language in real time, communication fee is pressed the local call scale fee.
3. a kind of speech communication computer according to claim 1, it is characterized in that: sound card (2) is by bus controller (6), processor controls (7), shared drive (8), code/Data Dynamic internal memory (8), digital signal processor (9), the line interface (11) of digital signal processing internal memory (10) and the identification of reel number sign indicating number is formed by connecting, wherein: the data line of bus controller (6) connects the data line of computer (1) respectively, the data line of shared drive (8), the data line of code/Data Dynamic internal memory (8), the data line of digital signal processor (9), the data line of the line interface (11) of reel number sign indicating number identification, the data line of shared drive (8) connects the data line of computer (1), the middle broken ends of fractured bone of processor controls (7) connects the middle broken ends of fractured bone of computer (1), the control end of control end connecting bus controller (6), the data line of digital signal processor (9) connects the data line of digital signal processing internal memory (10) respectively, the data line of the line interface (11) of reel number sign indicating number identification, the I/O mouth of the line interface (11) of reel number sign indicating number identification connects the telephone system wiring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116028 CN1225465A (en) | 1999-01-25 | 1999-01-25 | Speech communication computer and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99116028 CN1225465A (en) | 1999-01-25 | 1999-01-25 | Speech communication computer and use thereof |
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|---|---|
| CN1225465A true CN1225465A (en) | 1999-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99116028 Pending CN1225465A (en) | 1999-01-25 | 1999-01-25 | Speech communication computer and use thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306389C (en) * | 2003-12-29 | 2007-03-21 | 中国电子科技集团公司第三十研究所 | Sound card based modulation-demodulation method and system |
| CN100370451C (en) * | 2004-02-02 | 2008-02-20 | 英华达(上海)电子有限公司 | Method for implementing mobile phone function on PC |
| CN101835198B (en) * | 2001-03-28 | 2012-02-29 | 高通股份有限公司 | Method and apparatus for frame transport in wireless communication system |
-
1999
- 1999-01-25 CN CN 99116028 patent/CN1225465A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101835198B (en) * | 2001-03-28 | 2012-02-29 | 高通股份有限公司 | Method and apparatus for frame transport in wireless communication system |
| CN1306389C (en) * | 2003-12-29 | 2007-03-21 | 中国电子科技集团公司第三十研究所 | Sound card based modulation-demodulation method and system |
| CN100370451C (en) * | 2004-02-02 | 2008-02-20 | 英华达(上海)电子有限公司 | Method for implementing mobile phone function on PC |
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