KR20030034954A - Operating System for the terminals and Processing method for the same - Google Patents

Abstract

PURPOSE: A terminal operating system and a processing method thereof are provided to operate a plurality of terminals furnishing voice and video services by using one single protocol, through a USB(Universal Serial Bus) port. CONSTITUTION: A video(200) including a video terminal provides a video service. A computer(210) connected to a USB port of the video(200) transceives video data to perform digital signal processing. A plurality of voice terminals(220a-220n) provide voice services. A fax(230) provides a fax data or voice service. A packet device(240) connected to the voice terminals(220a-220n) or the fax(230) through a USB port receives analog signals from the voice terminals(220a-220n) or the fax(230), to perform digital signal processing. A hub(250) connected to the computer(210) or the packet device(240) through a USB port receives video, or voice and fax data to relay the received data to a gateway(260) of a desired destination. And the gateway(260) connected to the hub(250) through a USB port receives video or voice data through the hub(250) to perform signal processing in compliance with a preset communication protocol, and transmits the processed signals to the destination.

Description

Operating System for the terminals and Processing method for the same}

The present invention relates to a mobile communication system, and more particularly to a terminal operating system adapted to operate and manage a plurality of video and audio terminals.

In general, the next generation mobile communication system (IMT-2000) provides video and audio services together, and terminals and communication systems for efficiently providing such multi-services have been proposed.

Here, the video service may be provided to a user by a terminal using the H.323 protocol. Hereinafter, a terminal and a communication system using the conventional H.323 protocol will be described.

1 is a block diagram of a communication system using a conventional H.323 protocol.

Referring to FIG. 1, a video 110 including a computer 100 connected to an IP network, a video terminal connected to the computer 100 and transmitting image data to the IP network through the computer 100, and A gateway 120 connected to an IP network to convert voice data into an IP data format, a fax 130 connected to the gateway 120 to transmit / receive fax data, and a connection to the gateway 120 It is composed of a plurality of terminals (130a ~ 130n) for providing a voice service.

The conventional communication system configured as described above separately processes voice and video in operating several terminals 130a to 130n using the H.323 protocol.

That is, when transmitting / receiving video data through an IP network, a computer 100 or a video terminal using the H.323 protocol (typically, video 100) should be used for communication, and audio data may be transmitted through an IP network. When transmitting / receiving, the voice terminals 130a to 130n must be communicated via the VOIP gateway 120.

As described above, the conventional communication system is required to operate a separate protocol in the operation management of the terminal (130a ~ 130n) and the system by separating the audio and video processing, and accordingly difficult to configure and operate the system stably.

In addition, it is difficult to efficiently manage voice and video data, and it is difficult to provide a multi-service to a user because there is no administrator who can control a transmission band when transmitting voice and video data simultaneously.

In addition, since there is no common protocol when transmitting voice and video data over an IP network, the number of video terminals using H.323 increases, which causes a problem of increasing distortion of voice and video data.

Accordingly, the present invention has been made in view of the above-mentioned problems of the related art, and is to provide a terminal operating system and a processing method capable of efficiently operating and managing a plurality of terminals providing a voice and video service. .

In addition, another object of the present invention is to provide a terminal operating system and processing method capable of operating a plurality of terminals using a single protocol using a USB port.

According to an aspect of the present invention for achieving the above object, in a terminal operating system consisting of a plurality of video or voice or fax terminal, the voice or fax terminal is connected to the USB port and received from the voice or fax terminal A packet device for processing the analog signal into a digital signal; A hub connected to the packet device via a USB port to receive voice or fax data or to receive video data provided from the plurality of video terminals and to relay to a protocol conversion device of a desired destination; It is configured to include a gateway connected to the hub and a USB port, and processes the video, audio or fax data relayed through the hub in accordance with a predetermined communication protocol and transmits the signal to a destination.

1 is a block diagram showing a conventional terminal operating system.

Figure 2 is a block diagram showing a terminal operating system according to the present invention.

3 is a block diagram illustrating a packet device shown in FIG. 2;

4 is a block diagram illustrating a gateway shown in FIG. 2;

* Description of the symbols for the main parts of the drawings *

200: video (including video terminal)

210: PC

220: terminal

230: fax

240: packet device

250: Hub

260 gateway

Hereinafter, a configuration and an operation according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram illustrating a terminal operating system according to the present invention.

Referring to FIG. 2, the terminal operating system according to the present invention is connected to a video 200 providing a video service including a video terminal and a USB port of the video 200 including the video terminal, and transmits / receives image data. A computer 210 for digital signal processing, a plurality of voice terminals 220a to 220n for providing a voice service, a fax 230 for providing fax data or a voice service, and the voice terminals 220a to 220n or A packet device 240 connected to a fax 230 and a USB port and processing an analog signal received from the voice terminals 220a to 220n or the fax 203 as a digital signal, and the computer 210 through a USB port. Alternatively, the hub 250 is connected to the packet device 240 and relays the video, audio and fax data to a protocol conversion device (hereinafter, referred to as a gateway 260) to a desired destination, and the hub 250. And a gateway 260 connected to the USB port and receiving the video or audio data through the hub 250, processing the signal according to a preset communication protocol, and transmitting the signal to a destination.

The video 200 and the gateway 260 including the video terminal use the H.323 protocol.

The operation of the terminal operation system configured as described above is as follows.

First, voice data of the voice terminals 220a to 220n or fax data of the fax 230 is provided to the packet device 240 through a USB port in the form of an analog signal. The packet device 240 converts the received analog voice or fax data into digital data and transmits the digital data to the hub 250 through the USB port.

On the other hand, the image data of the video terminals including the video 200 is input to the PC 210 or the corresponding terminal through the USB port, the image data from the PC 210 or the terminal through the USB port is the hub Is sent to 250.

The hub 250 transmits the received voice, fax, and video data to the gateway 260 through the USB port. The gateway 260 uses the H.323 protocol and signals the transmitted voice, fax, and video data to the H.323 protocol stack to transmit it to the destination gateway.

FIG. 3 is a block diagram illustrating a packet device shown in FIG. 2.

Referring to FIG. 3, the packet device 240 is connected to the voice terminals 220a to 220n or the fax 230 to receive an analog signal, the FXO 310 and the FXS 320a to 320n, and the FXO ( 310 and a codec 330 for converting an analog signal received from the FXS 320a to 320n into a digital signal, a DSP 340 for compressing the converted digital signal, and transmitting the compressed data to the hub. USB port 350, a controller 360 for controlling each device, a memory 370 for storing data necessary for the control, and a signal input / output for transmitting a control signal of the controller to the codec and the DSP. It consists of a part (PLD) 380.

The operation of the packet device 240 configured as described above is as follows.

First, the FXO 310 receives analog fax data and voice data from the fax 230 and transmits the same to the codec 330, and the FXS 320a to 320n receive analog voice data from the voice terminals 220a to 220n. Transmit to codec 330.

Then, the codec 330 converts the transmitted analog voice or fax data into digital data, that is, PCM data, and transmits it to the DSP 340.

The DSP 340 compresses the transmitted PCM data, and the compressed data is transmitted to the hub 250 through the USB port 350.

In contrast, voice or fax data transmitted from the hub 250 is received by the DSP 340, and the DSP 340 decompresses the received voice or fax data and transmits the decoded voice or fax data to the codec 330. Converts to analog data.

FIG. 4 is a block diagram illustrating a gateway shown in FIG. 2.

Referring to FIG. 4, the gateway 260 may include a USB port 410 for transmitting / receiving video or audio data with the computer 210 or the packet device 240, and the received video, audio, or fax data. The controller 420 processes data according to a communication protocol to a desired destination, a memory 430 for storing data necessary for the operation of the controller 420, and the data processed by the controller 420 is transmitted to a destination. It is composed of a LAN unit 440.

The gateway 260 configured as described above performs conversion to / from the RTP / RTCP and H.323 protocol stacks, and as an embodiment, operations to / from the H.323 protocol stack are performed by the following procedure. do.

First, the USB port 410 receives the video, audio or fax data from the hub 250 and transmits it to the controller 420.

The controller 420 processes a video, audio, or fax data transmitted from the USB port 410 according to the H.323 communication protocol. Thereafter, the controller 420 transmits the processed video, audio, or fax data to the gateway 260 of the destination through the LAN unit 440.

In summary, the present invention allows the hub to deliver only voice, video, or fax data to a gateway having a USB port, and externally interprets only the IP address of the gateway 260, thereby allowing a gate manager (not shown). ), Several H.323 terminals can exist under one gateway, and simply add hubs with USB ports so that several H.323 terminals can be added in hardware.

As described above, the present invention has an effect of easily combining voice and video data by applying a standard protocol called UBS between different H.323 terminals.

In addition, since the present invention uses a wide frequency band of about 480 Mbps, a large effect can be obtained in a video terminal, here an H.323 terminal.

In addition, the present invention can easily access a gateway using the H.323 protocol using a hub having a USB port.

In addition, in the related art, only an analog terminal is connected to a voice support gateway, and the voice support gateway performs all of the RTP / RTCP and H.323 protocol stacks in addition to the data format conversion function. Instead of the voice-enabled gateway, only the packet device (the device that digitizes the voice) comes, and the H.323 gateway performs other functions (RTP / RTCP and H.323 protocol stack) to load the packet device. The sharing of load can be made possible by dividing between H.323 gateway and H.323 gateway.

In addition, since several H.323 terminals exist under one gateway, there is an effect of using less IP.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the present invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments, but should be defined by the claims.

Claims (9)

In the terminal operating system consisting of a plurality of video or audio or fax terminal, A packet device connected to the voice or fax terminal through a USB port and processing an analog signal received from the voice or fax terminal into a digital signal; A hub connected to the packet device via a USB port to receive voice or fax data or to receive video data provided from the plurality of video terminals and to relay to a protocol conversion device of a desired destination; And a gateway connected to the hub through a USB port and configured to transmit a video, audio or fax data relayed through the hub to a destination after processing a signal according to a predetermined communication protocol. The apparatus of claim 1, wherein the packet device comprises: an interface unit connected to the voice or fax terminal to receive an analog signal; A codec for converting an analog signal received at the interface unit into a digital signal; A digital signal processing device for compressing the converted digital signal; And a USB port for transmitting the compressed data to the hub. The apparatus of claim 1, wherein the gateway comprises: a USB port configured to transmit / receive video, audio, or fax data with a packet device; A controller configured to process the received video, audio, or fax data according to the communication protocol; And a LAN unit transmitting the data processed by the controller to a destination. The terminal operating system of claim 1, wherein the communication protocol is an H.323 protocol. The terminal operating system of claim 1, wherein the plurality of video terminals use an H.323 protocol. The terminal operating system of claim 1, wherein the image data provided from the plurality of video terminals is signal-processed by an external digital signal processing apparatus and provided to the hub. In the terminal operating system consisting of a plurality of video or audio or fax terminal, Converting an analog signal received from the voice or fax terminal through a USB protocol into a digital signal; Receiving the converted digital signal and an external digital signal through a USB protocol and relaying the converted digital signal to a communication protocol conversion device to a desired destination; And receiving the relayed digital signal through a USB protocol, processing the signal according to a preset communication protocol, and transmitting the signal to the destination. 8. The method of claim 7, wherein the external digital signal is generated by signal processing image data provided from the plurality of video terminals. 8. The method of claim 7, further comprising: compressing the converted digital signal; And relaying the compressed signal to a communication protocol converting device to a desired destination through a USB protocol.