CN200973104Y

CN200973104Y - Digital conference system

Info

Publication number: CN200973104Y
Application number: CN 200620066771
Authority: CN
Inventors: 张佳尧
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-25
Filing date: 2006-10-25
Publication date: 2007-11-07
Anticipated expiration: 2016-10-25

Abstract

The utility model discloses a digital meeting system, which comprises a plurality of processing machines connected by the network, wherein the processing machine is composed of an audio signal processing module, a control signal processing module and a network processing module, wherein the input /output terminals of the audio signal processing module and the control signal processing module are connected with the input /output terminals corresponding to the network processing module; the network processing module is connected to the network; each module adopts the hardware frame with the high-velocity digital processor as the core; data transmission between the equipments adopts the coding technology that is capable of network transmission of high-quality digital audio signal, control signal and other data, thereby providing great convenience to the construction wiring and increasing the system reliability. Meanwhile, by using the digital signal for transmission, the signal ratio is improved and the high-quality audio sound is obtained. Meanwhile, the long-distance transmission can retain the hi-fi perfect sound all the same. The device is widely applicable to a plurality of occasions like the medium and small meeting room, the large-scale meeting room, the large-scale meeting hall, the stadium, etc.

Description

Digital conference system

Technical field

The utility model relates to a kind of conference system, especially a kind ofly connects that computer is operated or the digital control type conference system of separating computer independent operating.

Background technology

Present known conference system can be divided into two big classifications: a kind of simulation, another is digitized.The function singleness of simulation session system, but simple to operate.The digitalized conference systemic-function is powerful, but present existing digital systems architecture is simple, finite capacity, and along with the frequent expansion of modern convention, this digital system can't be satisfied the demand.

Summary of the invention

In order to overcome the not enough here of existing two kinds of conference systems, the utility model provides a kind of conference system, transmits high-quality digital audio and video signals, control signal and other data by the mode of network, and is powerful.

The utility model is to realize above-mentioned purpose like this:

Digital conference system, it is characterized in that being connected to form by network by a plurality of processors, described processor comprises audio-frequency signal processing module, control signal processing module and network process module, the input/output end port of audio-frequency signal processing module and control signal processing module links to each other with the corresponding input/output end port of network process module, and network process module links to each other with network.

The beneficial effects of the utility model are: it is the hardware structure of core that each module adopts with the high speed numerical processor, the transfer of data of equipment room has adopted coding techniques, can on 6 core 100Mbps high speed cables of a special use, transmit nearly 64 tunnel high-quality digital audio and video signals, control signal and other data, greatly facilitate the construction wiring, strengthened the reliability of system.And adopted coding techniques, utilize digital signal to transmit, solved the interference that the noise that ground wire brings in the audio engineering and other equipment cause, improved signal to noise ratio, obtain high-quality audio frequency tonequality, quality of signals and amplitude can not decay in transmission course simultaneously, and long Distance Transmission can provide high-fidelity perfect tonequality equally, can be widely used in multiple occasions such as middle-size and small-size meeting room, convention venue, stadiums.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified:

Fig. 1 is a theory diagram of the present utility model;

Fig. 2 is audio-frequency signal processing module circuit theory diagrams of the present utility model (comprising Fig. 2-1, Fig. 2-2);

Fig. 3 is control signal processing module circuit theory diagrams of the present utility model (comprising Fig. 3-1, Fig. 3-2);

Fig. 4 is network process module circuit theory diagrams of the present utility model.

Embodiment

With reference to Fig. 1, digital conference system, be connected to form by network by a plurality of processors, described processor comprises audio-frequency signal processing module U1, control signal processing module U2 and network process module U3, the input/output end port of audio-frequency signal processing module U1 and control signal processing module U2 links to each other with the corresponding input/output end port of network process module U3, and network process module U3 links to each other with network.

Describe the structure and the principle of each module below in detail.

1) audio-frequency signal processing module U1 is used to gather the analog signal of microphone and is converted into digital audio and video signals and is sent to network again, and the back of simultaneously digital audio and video signals of network being decoded obtains analog signal and drives loud speaker.It comprises audio coding/decoding integrated circuit (IC) 1 and audio digital signal processor IC2.Microphone input interface MIC In, circuit input interface LineIn link to each other with the corresponding simulation input and output port of audio coding/decoding integrated circuit (IC) 1 with circuit output interface Line Out, the digital input/output end port of audio coding/decoding integrated circuit (IC) 1 links to each other with the respective digital input/output end port of audio digital signal processor IC2, and audio digital signal processor IC2 also has digital input/output end port to link to each other with network process module U3.The analog signal of microphone at first enters audio coding/decoding integrated circuit (IC) 1, the acquisition digital audio and video signals of encoding, this signal is admitted to audio digital signal processor IC2 again and encodes, sending into network process module U3 then is connected with network and transmits, the opposite digital audio and video signals that transmits in network is admitted to audio digital signal processor IC2 and the audio coding/decoding integrated circuit (IC) 1 acquisition simulated audio signal of decoding, and this signal send power amplifier to amplify the driving loud speaker again.The coupling of level when realizing digital data transmission, the digital input/output end port of audio digital signal processor IC2 links to each other with network process module U3 through level translator IC3 again.

2) control signal processing module U2, the control signal that is used to obtain inputs such as computer is controlled, is managed mode of operation of system etc.It comprises compunlcation module U21 and control figure signal processor IC7.Compunlcation module U21 links to each other with the communication port of computer Computer, and compunlcation module U21 output links to each other with the input port of control figure signal processor IC7, and the output port of control figure signal processor IC7 links to each other with network process module U3.Because USB can support plug and play technique in the existing compunlcation port, convenient, therefore compunlcation module U21 described in the utility model is made up of USB integrated circuit (IC) 10, and the USB port of computer Computer links to each other with USB integrated circuit (IC) 10 by USB interface CON2.The same coupling of level when realizing digital data transmission, the digital input/output end port of audio digital signal processor IC2 links to each other with network process module U3 through level translator IC3 again.

3) network process module U3, paired domination number word signal, audio digital signals handle to be packaged into and wrap up again that SCN Space Cable Network transmits.It comprises network communication device IC12 and isolating transformer T3, and network communication device IC12 is connected with network behind isolating transformer T3.Network communication device IC12 carries out ICP/IP protocol to be handled, and then by from transformer T3, delivers to each processor through communication line, finishes the transmission of control data signal.

It is the hardware structure of core that each module adopts with the high speed numerical processor, the transfer of data of equipment room has adopted coding techniques, can on 6 core 100Mbps high speed cables of a special use, transmit nearly 64 tunnel high-quality digital audio and video signals, control signal and other data, greatly facilitate the construction wiring, strengthened the reliability of system.And adopted coding techniques, utilize digital signal to transmit, solved the interference that the noise that ground wire brings in the audio engineering and other equipment cause, improved the signal ratio, obtain high-quality audio frequency tonequality, quality of signals and amplitude can not decay in transmission course simultaneously, and long Distance Transmission can provide high-fidelity perfect tonequality equally, is widely used in multiple occasions such as middle-size and small-size meeting room, convention venue, stadiums.

Claims

1. digital conference system, it is characterized in that being connected to form by network by a plurality of processors, described processor comprises audio-frequency signal processing module (U1), control signal processing module (U2) and network process module (U3), the input/output end port of audio-frequency signal processing module (U1) and control signal processing module (U2) links to each other with the corresponding input/output end port of network process module (U3), and network process module (U3) links to each other with network.

2. digital conference system according to claim 1, it is characterized in that described audio-frequency signal processing module (U1) comprises audio coding/decoding integrated circuit (IC1) and audio digital signal processor (IC2), microphone input interface (MIC In), circuit input interface (Line In) links to each other with the corresponding simulation input and output port of audio coding/decoding integrated circuit (IC1) with circuit output interface (Line Out), the digital input/output end port of audio coding/decoding integrated circuit (IC1) links to each other with the respective digital input/output end port of audio digital signal processor (IC2), and audio digital signal processor (IC2) also has digital input/output end port to link to each other with network process module (U3).

3. digital conference system according to claim 2 is characterized in that the digital input/output end port of audio digital signal processor (IC2) links to each other with network process module (U3) through level translator (IC3) again.

4. digital conference system according to claim 1, it is characterized in that described control signal processing module (U2) comprises compunlcation module (U21) and control figure signal processor (IC7), compunlcation module (U21) links to each other with the communication port of computer (Computer), compunlcation module (U21) output links to each other with the input port of control figure signal processor (IC7), and the output port of control figure signal processor (IC7) links to each other with network process module (U3).

5. digital conference system according to claim 4 is characterized in that compunlcation module (U21) is made up of USB integrated circuit (IC10), and the USB port of computer (Computer) links to each other with USB integrated circuit (IC10) by USB interface (CON2).

6. according to the described digital conference system of claim 4, it is characterized in that being connected with another level translator (IC11) between the output port of control figure signal processor (IC7) and the network process module.

7. according to the described digital conference system of claim 1, it is characterized in that described network process module (U3) comprises network communication device (IC12) and isolating transformer (T3), network communication device (IC12) is connected with network behind isolating transformer (T3).