KR960028515A - Display device for multi-party video conferencing system - Google Patents

Display device for multi-party video conferencing system Download PDF

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Publication number
KR960028515A
KR960028515A KR1019940038169A KR19940038169A KR960028515A KR 960028515 A KR960028515 A KR 960028515A KR 1019940038169 A KR1019940038169 A KR 1019940038169A KR 19940038169 A KR19940038169 A KR 19940038169A KR 960028515 A KR960028515 A KR 960028515A
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KR
South Korea
Prior art keywords
frame
buffers
inputting
common decoder
decoder
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Application number
KR1019940038169A
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Korean (ko)
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KR100258233B1 (en
Inventor
이승섭
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배순훈
대우전자 주식회사
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Priority to KR1019940038169A priority Critical patent/KR100258233B1/en
Publication of KR960028515A publication Critical patent/KR960028515A/en
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Publication of KR100258233B1 publication Critical patent/KR100258233B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/15—Conference systems
    • H04N7/152—Multipoint control units therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5601—Transfer mode dependent, e.g. ATM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus
    • H04N5/775—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television receiver

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

본 발명은 다자간영상회의 시스템용 디스플레이장치에 관한 것으로, 영상 데이타를 입력하는 복수개의 버퍼(41)와; 상기버퍼들의 출력들을 입력하여 디코딩하여 공용 디코더(45); 상기 공용 디코더의 출력을 프레임단위로 저장하는 복수개의프레임 메모리(10-1, 10-2, 10-3, 10-6); 상기 각 프레임 메모리에 한 프레임의 영상 데이타가 차면 인터럽트를 각각 발생하는 복수개의 프레임 인터럽트부(20-1, 20-2, 20-3, 20-6); 및 상기 공용디코더의 출력을 입력하여 상기 복수개의 버퍼 및 상기 프레임메모리를 제어하는 시스템제어부(30)를 구비하여 전송로를 통해 ATM망으로부터 수신한 영상데이타를 입력하여 워크스테이션의 엑스-윈도우(X-window)를 이용하여 다수의 회의 상대방을 하나의 모니터로 디스플레이해 준다.The present invention relates to a display device for a multi-party video conferencing system, comprising: a plurality of buffers (41) for inputting image data; A common decoder 45 for inputting and decoding the outputs of the buffers; A plurality of frame memories (10-1, 10-2, 10-3, 10-6) for storing the output of the common decoder in units of frames; A plurality of frame interrupt units 20-1, 20-2, 20-3, and 20-6 for generating an interrupt when the image data of one frame is filled in each frame memory; And a system controller 30 which controls the plurality of buffers and the frame memory by inputting the output of the common decoder, and inputs image data received from an ATM network through a transmission path to receive an X-window (X) of a workstation. display multiple meeting parties on a single monitor.

Description

다자간 영상회의 시스템용 디스플레이장치Display device for multi-party video conferencing system

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 본 발명에 따른 영상회의 시스템용 디스플레이장치를 도시한 블럭도, 제3도는 제2도에 도시된 프레임 인터럽트부의 회로도이다.FIG. 2 is a block diagram showing a display apparatus for a videoconferencing system according to the present invention, and FIG. 3 is a circuit diagram of the frame interrupter shown in FIG.

Claims (3)

전송로를 통해 ATM망으로부터 수신한 영상데이타를 입력하여 워크스테이션의 엑스-윈도우(X-window)를 이용하여 다수의 회의 상대방을 하나의 모니터로 디스플레이해 주는 장치에 있어서, 영상데이타를 입력하는 복수개의 버퍼(41)와, 상기 버퍼들의 출력을 입력하여 디코딩하는 공용 디코더(45), 상기 공용 디코더의 출력을 프레임단위로 저장하는복수개의 프레임메모리(10-1, 10-2, 10-3, 10-6), 상기 각 프레임메모리에 한 프레임의 영상데이타가 차면 인터럽트를 각각 발생하는 복수개의 프레임 인터럽트(20-1, 20-2, 20-3, 20-6), 및 상기 공용 디코더의 출력을 입력하여 상기 복수개의버퍼 및 상기 프레임메모리를 제어하는 시스템 제어부(30)를 구비한 것을 특징으로 하는 다자간 영상회의 시스템용 디스플레이장치.A device for inputting video data received from an ATM network through a transmission path to display a plurality of conference counterparts on one monitor using an X-window of a workstation. Buffers 41, a common decoder 45 for inputting and decoding the outputs of the buffers, and a plurality of frame memories 10-1, 10-2, 10-3, for storing the outputs of the common decoders in units of frames. 10-6), a plurality of frame interrupts 20-1, 20-2, 20-3, and 20-6 which generate an interrupt when the image data of one frame is filled in each frame memory, and the output of the common decoder And a system control unit (30) for controlling the plurality of buffers and the frame memory by inputting the. 제1항에 있어서, 상기 시스템 제어부(30)는 공용 디코더로부터 화면시작점신호를 입력하면 상기 버퍼들로부터 순차적으로 데이타를 상기 영상 디코더로 입력토록 제어하고, 상기 공용 디코더의 출력을 순차적으로 프레임메모리에 저장토록 제어하는 것을 특징으로 하는 다자간 영상회의 시스템용 디스플레이장치.2. The system of claim 1, wherein the system controller 30 controls input of the screen start point signal from the common decoder to sequentially input data from the buffers to the video decoder, and sequentially outputs the output of the common decoder to the frame memory. Display apparatus for a multi-party video conferencing system, characterized in that for controlling the storage. 제1항에 있어서, 상기 복수개의 버퍼, 상기 복수개의 프레임메모리, 상기 복수개의 프레임 인터럽트는 약1.5Mbps의 6개의 영상채널을 처리할 수 있도록 각각 6개씩으로 구현된 것을 특징으로 하는 다자간 영상회의 시스템용 디스플레이장치.The multi-party video conferencing system according to claim 1, wherein the plurality of buffers, the plurality of frame memories, and the plurality of frame interrupts are each implemented by six to handle six video channels of about 1.5 Mbps. Display device for.
KR1019940038169A 1994-12-28 1994-12-28 Display device for video conference system KR100258233B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940038169A KR100258233B1 (en) 1994-12-28 1994-12-28 Display device for video conference system

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Application Number Priority Date Filing Date Title
KR1019940038169A KR100258233B1 (en) 1994-12-28 1994-12-28 Display device for video conference system

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KR960028515A true KR960028515A (en) 1996-07-22
KR100258233B1 KR100258233B1 (en) 2000-06-01

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000060997A (en) * 1999-03-22 2000-10-16 구자홍 Method for assigning Frame Memory, then Frame Memory Structure
KR20010112896A (en) * 2001-10-31 2001-12-22 (주)인디키노 Data transmission method in video conferencing using multi buffering system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020089278A (en) * 2002-11-06 2002-11-29 한홍규 System for real time concurrent multi-connection electronic conference and method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000060997A (en) * 1999-03-22 2000-10-16 구자홍 Method for assigning Frame Memory, then Frame Memory Structure
KR20010112896A (en) * 2001-10-31 2001-12-22 (주)인디키노 Data transmission method in video conferencing using multi buffering system

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