CN201001132Y - VOIP network communication terminal - Google Patents

Abstract

The utility model discloses a VOIP network communication terminal, which belongs to the network voice communication equipment. The utility model comprises a central processor unit and a digital signal logic processing unit, a network interface unit, an exterior storage unit, a voice coder/decoder, a human-computer interface combination unit and an electro acoustic circuit unit which are connected with the central processor unit, wherein the digital signal logic processing unit is connected with the network interface unit and the voice coder/decoder, and the voice coder/decoder is connected with the electro acoustic circuit unit. The VOIP network communication terminal of the utility model has the advantages that the utility model has the appearance of a traditional PSTN telephone, the operation is convenient and simple, the functions are various, and the network voice talk is realized.

Description

A kind of VOIP network communication terminal

Technical field

The utility model relates to a kind of voice communication apparatus of internet protocol-based, is meant a kind of communication terminal of the VOIP of being applied to network especially.

Background technology

Since the voip network telephony was born, its cheap use cost was that enterprise's reduction communications cost brings glad tidings.Yet, because set VoIP is a basic platform with the metropolitan area network that telecom operators were had, thereby cause the terminal communication cost to be limited by the cost (comprising efficiency of operation, the efficiency of management, enterprise's integrated cost etc.) of distributors itself, and then the communications cost that causes communication service to enjoy enterprise is restricted.Therefore, how to utilize the computer internet resource to realize the communication of enterprise self-determining formula, the enterprise that enterprise group is positioned at different regions couples together, and realizes the intercommunication of cross-region, thereby effectively reduces the enterprise communication cost.

The at present common VoIP communication mode general using receiver and the sound card of pick-up and computer and work in the voice communication terminal of the common formation of application software of computer system resource platform based on the VoIP system.Obviously, this needs utilize computer directly to utilize conventional telecommunication telephone machine to compare as the VoIP communication terminal of network access gateway with people, not only loaded down with trivial details in application (for example start computer temporarily, start corresponding application software), cause the waste of computer resource, and to traffic operation person's basic quality have relatively high expectations (need have basic computation technical ability).

The patent documentation of China utility model patent ZL200420150245.4 discloses a kind of computer voip phone terminal that is applied to IP network, comprise microphone, terminal input equipment, data exchange interface, CODEC and data processing equipment, this microphone, CODEC and data processing equipment are to connect successively, the terminal input equipment is connected with data processing equipment, and this data processing equipment is connected with external communication equipment by data exchange interface.Described microphone and data processing equipment are respectively and carry out bidirectional data exchange between the CODEC.Described data processing equipment and data exchange interface are to exchanges data, described terminal input equipment is a telephone keypad, setting by CODEC and data processing equipment, the caller can directly be conversed by microphone, and this voice signal can be outputed on the other side's the telephone terminal by IP network, thereby can be can realize conversation by earphone, and do not need to realize on computers the operation of conversing yet, therefore make this telephone terminal more easy to use, but have the shortcoming of function singleness.

The patent documentation of China utility model patent ZL 200520064721.5 discloses a kind of telephone set with black phone and function of network phone, can not directly use for solving conventional telephone set as network telephone, and the existing network verbal system does not have the problem of black phone function, telephone set of the present utility model comprises the basic circuit that is used to realize the conventional telephone set function, also comprises with described basic circuit being connected, being used for to be connected to receive/to send out the usb communication module of voice signal and control signal and then realization Internet phone-calling function with outer computer; Wherein will select output to conversation module or usb communication module from the voice signal of microphone, and just propose in this scheme to connect with outer computer and realized the voip network telephone functionality by the usb communication module by handover module.

The utility model content

The problem that the utility model need solve provides the VOIP network communication terminal of a kind of outward appearance with traditional PSTN telephone set, easy to use, simple to operate, diverse in function, the conversation of realization voice-over-net.

Designed a kind of VOIP telephone terminal according to the above-mentioned problem that needs to solve, the digital signal Logical processing unit that comprises central processor unit and connect, network interface unit, external memory unit, voice coder/decoder, man-machine interface assembled unit and electroacoustic circuit unit with it, the digital signal Logical processing unit connects with network interface unit and voice coder/decoder, and the voice coder/decoder connects with the electroacoustic circuit unit.

Described central processor unit is by network interface being carried out the control and management circuit, digital signal logic processing unit being managed and the processing relevant information circuit, the voice coder/decoder controlled with management circuit, the state setting of complete machine is controlled with management circuit, detected channel information and carry out the control and management circuit, the operational motion of man-machine interface is carried out treatment circuit and communication process carried out the control and management circuit form.

Described digital signal Logical processing unit is come from the internet ip sound circuit, digital signalling is converted into the signaling circuit that meets the IP protocols and digitized speech information is converted into VoIP voice packet form circuit form by IP signaling circuit, the processing that processing comes from computer internet.

Described network interface unit comprises IP network interface circuit, network transformer T1 and net connection interface U12, U13, the IP network interface circuit connects with central processor unit, network transformer T1 connects with the IP network interface circuit, and connects with computer internet by net connection interface U12, U13.But the network interface unit role is the channel effect that forms communication between voip phone terminal and the LAN system platform device, and it is in the nature CU channel unit.The CU channel unit role is that the signaling-information that terminal is sent becomes with digitized electroacoustic signal modality conversion and can and follows corresponding signal transfer protocol rules in the signal aspect of network insertion Channel Transmission, or will be reduced to digital signalling and digital telephone electroacoustic signal form by radio equipment based on the IP signaling signal and the ip voice bag of computer internet.

External memory unit comprises and is used for CPU at the ephemeral data buffer of treatment progress with have the state parameter record storage that power down keeps function.

The voice coder/decoder is used for the analog voice signal from the pstn telephone terminal is converted to digital signal (digital signal Logical processing unit) and the process of the digital signal under the coded system is decoded and is reduced to coded system can be by the analog voice signal of pstn telephone terminal transmission and broadcast.

Described electroacoustic circuit unit comprises pick-up, pick-up amplifying circuit, receiver, feedback amplifier, loud speaker, hands-free amplifying circuit and hook switch device, pick-up connects with chip voice coder/decoder by the pick-up amplifying circuit, receiver connects with the voice coder/decoder by feedback amplifier, loud speaker connects with the voice coder/decoder by hands-free amplifying circuit, and hook switch device central processor unit and voice coder/decoder connect.

Described man-machine interface assembled unit comprises keyboard and drive circuit thereof, LCD and drive circuit thereof, power supply and SOT state of termination indicator light circuit.

The preferential scheme of the utility model is: central processor unit and each circuit of digital signal Logical processing unit are integrated in the chip U1, the model that adopts is CM5000, is finished each function of central processor unit and digital signal Logical processing unit by chip U1 and peripheral circuit thereof.

Use the utility model VOIP network communication terminal, do not need to utilize the gateway of computer as network insertion, minimizing has the outward appearance of traditional PSTN telephone set to the waste of computer resource, realizes the function of existing telephone machine, comprise caller identification, calling transfer, function such as hands-free, simple to operate, utilize the computer internet resource to realize the communication of enterprise self-determining formula, the enterprise that enterprise group is positioned at different regions links up, realize the intercommunication of cross-region, thereby effectively reduce the enterprise communication cost.

Description of drawings

Fig. 1 is the connection schematic diagram of the utility model VOIP network communication terminal in practicality; Accompanying drawing 2 is the utility model VOIP network communication terminal functional-block diagrams; Accompanying drawing 3 is CPU, the digital signal Logical processing unit circuit theory diagrams in the utility model VOIP network communication terminal; Accompanying drawing 4 is the external memory unit circuit theory diagrams in the utility model VOIP network communication terminal; Accompanying drawing 5 is the network interface unit circuit theory diagrams in the utility model VOIP network communication terminal; Accompanying drawing 6 is voice coder/decoder circuit and the electroacoustic circuit unit schematic diagrams in the utility model VOIP network communication terminal; Accompanying drawing 7 is keyboard and the display interface circuit schematic diagrams in the utility model VOIP network communication terminal; Accompanying drawing 8 is the keyboard drive circuit theory diagrams in the utility model VOIP network communication terminal; Accompanying drawing 9 is the circuit of display driving schematic diagrams in the utility model VOIP network communication terminal; Accompanying drawing 10 is the power unit circuit schematic diagrams in the utility model VOIP network communication terminal.

Embodiment

Below with reference to accompanying drawing embodiment of the present utility model is elaborated:

As shown in Figure 1 and Figure 2, a kind of VOIP telephone terminal connects with computer internet, and by the access of computer internet realization to the remote service center platform.Digital signal Logical processing unit, network interface unit, external memory unit, voice coder/decoder, man-machine interface assembled unit and electroacoustic circuit unit that the utility model VOIP network communication terminal comprises central processor unit and connects with it, the digital signal Logical processing unit connects with network interface unit and voice coder/decoder, the voice coder/decoder connects with the electroacoustic circuit unit, and power subsystem provides operating voltage for above-mentioned each unit.

When the utility model is for the first time implemented to insert to the remote service center platform, at first will be by the authentication of central platform, that is: have only terminal by authorizing, could make a call to other terminal or as legal called by remote center's platform.Remote service center records the IP address of every the utility model terminal, is used for as the call targets address.During as caller, corresponding IP address is associated with setting in advance Subscriber Number in the utility model terminal, and as caller ID display on the caller identification interface of the network terminal that constitutes by the utility model equally.If terminal called is other type network terminal of non-the utility model, then according to the VoIP protocols, the calling number of demonstration directly is the IP address.

The terminal that the utility model is constructed both can be linked into the remote service center platform by local area network (LAN), also can be linked into long-range remote service center platform by metropolitan area network, and the IP address assignment mode of two class access waies is identical.

As shown in Figure 3, the utility model CPU, digital signal Logical processing unit circuit theory diagrams, in central processor unit, the digital signal Logical processing unit circuit integrated chip U1, the model that adopts is CM5000, the peripheral circuit that connects with chip U1 comprises clock generating circuit, input/output interface circuit etc., wherein input/output interface circuit had both comprised the data-signal input and output, comprised the input and output of control signal again.

As shown in Figure 4, the utility model external memory unit circuit theory diagrams, by the data buffer U2 of the interim stores processor that is used for data be used to support the state of long preservation or the storage of characteristic information parameter, the FLASH flash memories U3 that supports power down to preserve information to form, the model that data buffer U2 adopts is SDRAM4M * 16, the model that FLASH flash memories U3 adopts is EN29LV160AT, and data buffer U2 and FLASH flash memories U3 connect with chip U1.

As shown in Figure 5, the utility model network interface unit circuit theory diagrams, IP network interface circuit are by chip U4, U11, and the model of employing all is IP101; Network transformer T1 forms, and the model of employing is 20PT1024X, and the conversion of signals that is used for network interface chip output is to grow the modulation signal of Distance Transmission on network channel; Net connection interface U12 and U13, the model of employing is LANRJ45, is the RJ45 interface of standard.Net connection interface U12 is used for phone and network direct interface and the independent application mode that realizes communication terminal functions, and net connection interface U13 is used for the application mode of the utility model as the plug-in subsidiary communications device of computer.Chip U4, U11 connect with chip U1 and network transformer T1 respectively, and network transformer T1 connects with net connection interface U12 and U13.

As shown in Figure 6, the utility model voice coder/decoder circuit and electroacoustic circuit unit schematic diagram, the voice coder/decoder is made up of chip U5, the model that adopts is STAC9752A, be used for converting the electroacoustic signal of simulation to digitally encoded signal, and the voice signal that digitally encoded signal is reduced into simulation; Interface JP1 is the pick-up port, and interface JP1 connects with pick-up and pick-up amplifying circuit, and the pick-up amplifying circuit is made up of operational amplifier U6 and peripheral circuit thereof, and operational amplifier U6 connects with chip U5; Interface JP2 is the receiver port, interface JP2 connects with receiver and feedback amplifier, feedback amplifier is made up of operational amplifier U6B, operational amplifier U6B connects with chip U5, interface JP3 is a speaker port, and interface JP3 connects with loud speaker and hands-free amplifying circuit, and hands-free amplifying circuit is connected by integrated circuit U7, integrated circuit U7 connects with chip U5, J1 telephone hook switch (HOOK) device and connection logic thereof.

As shown in Figure 7, the utility model keyboard and display interface circuit schematic diagram, socket JP4 are keyboard interface; Socket JP5 is the LCD display interface, connects with keyboard, LCD and chip U1 respectively.

As shown in Figure 8, the utility model keyboard drive circuit theory diagrams, the right of figure is the keyboard logic connection diagram.The upper left corner of figure by variable connector U8, constitutes the on-off controller of keyboard signal lamp, and the model of employing is 74HC164.

As shown in Figure 9, the utility model circuit of display driving schematic diagram is the on-off controller that variable connector constitutes the monitor signal lamp by U9, and the model of employing is 74HC164.Chip U17 is the LCD display driver chip, and the model of employing is GD162.

As shown in figure 10, the utility model power unit circuit schematic diagram, form by socket J5, step-down chip U10 voltage stabilizing chip U14 and U16 and peripheral circuit thereof, outside direct current 9V socket J5 input, step-down is handled through chip U10, handle through chip U14 and U16 voltage stabilizing again, produce 1.8V and 3.3V voltage respectively.

Claims (9)

1, a kind of VOIP network communication terminal, it is characterized in that: the digital signal Logical processing unit that comprises central processor unit and connect, network interface unit, external memory unit, voice coder/decoder, man-machine interface assembled unit and electroacoustic circuit unit with it, the digital signal Logical processing unit connects with network interface unit and voice coder/decoder, and the voice coder/decoder connects with the electroacoustic circuit unit.

2, VOIP network communication terminal according to claim 1 is characterized in that: described central processor unit is by network interface being carried out the control and management circuit, digital signal logic processing unit being managed and the processing relevant information circuit, the voice coder/decoder controlled with management circuit, the state setting of complete machine is controlled with management circuit, detected channel information and carry out the control and management circuit, the operational motion of man-machine interface is carried out treatment circuit and communication process carried out the control and management circuit form.

3, VOIP network communication terminal according to claim 2 is characterized in that: described digital signal Logical processing unit is come from the internet ip sound circuit, digital signalling is converted into the signaling circuit that meets the IP protocols and digitized speech information is converted into VoIP voice packet form circuit form by IP signaling circuit, the processing that processing comes from computer internet.

4, according to claim 2 and 3 described VOIP network communication terminals, it is characterized in that: described central processor unit and each circuit of digital signal Logical processing unit are integrated in the chip U1, the model that adopts is CM5000, and chip U1 and peripheral circuit thereof are finished each functional circuit of central processor unit and digital signal Logical processing unit.

5, VOIP network communication terminal according to claim 4 is characterized in that: the described external memory unit that connects with chip U1 comprises the data buffer U2 of the interim stores processor that is used for numeral and is used to support the state of long preservation or storage, the support power down of characteristic information to preserve the FLASH flash memories U3 of information.

6, VOIP network communication terminal according to claim 4, it is characterized in that: the described network interface unit that connects with chip U1 comprises IP network interface circuit, network transformer T1 and net connection interface U12, U13, the IP network interface circuit connects with central processor unit, network transformer T1 connects with the IP network interface circuit, and connects with computer internet by net connection interface U12, U13.

7, VOIP network communication terminal according to claim 4 is characterized in that: the described voice coder/decoder that connects with chip U1 is made up of chip U5 and peripheral circuit thereof, and chip U5 also connects with the electroacoustic circuit unit, and the model of employing is STAC9752A.

8, VOIP network communication terminal according to claim 7, it is characterized in that: described electroacoustic circuit unit comprises pick-up, pick-up amplifying circuit, receiver, feedback amplifier, loud speaker, hands-free amplifying circuit and hook switch device, pick-up connects with chip U5 by the pick-up amplifying circuit, receiver connects with chip U5 by feedback amplifier, loud speaker connects with chip U5 by hands-free amplifying circuit, and the hook switch device connects with chip U1 and U5.

9, VOIP network communication terminal according to claim 4 is characterized in that: the described man-machine interface assembled unit that connects with chip U1 comprises keyboard and drive circuit thereof, LCD and drive circuit thereof, power supply and SOT state of termination indicator light circuit.

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