HK1058450A1 - Video conferencing system and method of operation - Google Patents

Video conferencing system and method of operation

Info

Publication number
HK1058450A1
HK1058450A1 HK04100650A HK04100650A HK1058450A1 HK 1058450 A1 HK1058450 A1 HK 1058450A1 HK 04100650 A HK04100650 A HK 04100650A HK 04100650 A HK04100650 A HK 04100650A HK 1058450 A1 HK1058450 A1 HK 1058450A1
Authority
HK
Hong Kong
Prior art keywords
video conferencing
conferencing system
video
conferencing
Prior art date
Application number
HK04100650A
Inventor
Arthur Lallet
Original Assignee
Motorola Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of HK1058450A1 publication Critical patent/HK1058450A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
    • H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • H04N21/25808—Management of client data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • H04N21/26216—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints involving the channel capacity, e.g. network bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/266—Channel or content management, e.g. generation and management of keys and entitlement messages in a conditional access system, merging a VOD unicast channel into a multicast channel
    • H04N21/2662—Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H04N21/440227—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45—Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462—Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4621—Controlling the complexity of the content stream or additional data, e.g. lowering the resolution or bit-rate of the video stream for a mobile client with a small screen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Computer Graphics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Telephonic Communication Services (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
HK04100650A 2002-01-30 2004-01-30 Video conferencing system and method of operation HK1058450A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0202101A GB2384932B (en) 2002-01-30 2002-01-30 Video conferencing system and method of operation

Publications (1)

Publication Number Publication Date
HK1058450A1 true HK1058450A1 (en) 2004-05-14

Family

ID=9930013

Family Applications (1)

Application Number Title Priority Date Filing Date
HK04100650A HK1058450A1 (en) 2002-01-30 2004-01-30 Video conferencing system and method of operation

Country Status (7)

Country Link
JP (1) JP2005516557A (en)
KR (1) KR20040079973A (en)
CN (1) CN1618233A (en)
FI (1) FI20041039A (en)
GB (1) GB2384932B (en)
HK (1) HK1058450A1 (en)
WO (1) WO2003065720A1 (en)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8659636B2 (en) 2003-10-08 2014-02-25 Cisco Technology, Inc. System and method for performing distributed video conferencing
CA2537944C (en) * 2003-10-08 2010-11-30 Cisco Technology, Inc. System and method for performing distributed video conferencing
JP2006067124A (en) 2004-08-25 2006-03-09 Nec Corp Method and device for switching image encoded data, system, and program
CN100417220C (en) * 2004-09-28 2008-09-03 中兴通讯股份有限公司 Method for holding multi-point video conference by terminal dialing
FR2875665A1 (en) * 2005-01-04 2006-03-24 France Telecom Video bit stream highlighting method for transmitting stream to videoconference participants, involves adjusting value of encoding quality parameter of video bit stream based on measured value of predefined parameter of audio bit stream
US7535484B2 (en) 2005-03-14 2009-05-19 Sony Ericsson Mobile Communications Ab Communication terminals that vary a video stream based on how it is displayed
CN100401765C (en) * 2005-03-24 2008-07-09 华为技术有限公司 Video conference controlling method
US20060244813A1 (en) * 2005-04-29 2006-11-02 Relan Sandeep K System and method for video teleconferencing via a video bridge
WO2007075196A1 (en) 2005-09-07 2007-07-05 Vidyo, Inc. System and method for a high reliability base layer trunk
EP1966917B1 (en) * 2005-09-07 2016-05-04 Vidyo, Inc. System and method for a conference server architecture for low delay and distributed conferencing applications
KR100695206B1 (en) 2005-09-12 2007-03-14 엘지전자 주식회사 Mobile communication terminal for sharing device buffer and sharing buffer method using the same
JP2007158410A (en) 2005-11-30 2007-06-21 Sony Computer Entertainment Inc Image encoder, image decoder, and image processing system
US8436889B2 (en) 2005-12-22 2013-05-07 Vidyo, Inc. System and method for videoconferencing using scalable video coding and compositing scalable video conferencing servers
KR100666995B1 (en) * 2006-01-16 2007-01-10 삼성전자주식회사 Method and system for providing the differential media data of meltimedia conference
US7822811B2 (en) * 2006-06-16 2010-10-26 Microsoft Corporation Performance enhancements for video conferencing
US8773494B2 (en) * 2006-08-29 2014-07-08 Microsoft Corporation Techniques for managing visual compositions for a multimedia conference call
CA2662812C (en) 2006-09-29 2014-02-11 Vidyo, Inc. System and method for multipoint conferencing with scalable video coding servers and multicast
US8334891B2 (en) 2007-03-05 2012-12-18 Cisco Technology, Inc. Multipoint conference video switching
US8264521B2 (en) 2007-04-30 2012-09-11 Cisco Technology, Inc. Media detection and packet distribution in a multipoint conference
KR100874024B1 (en) * 2007-09-18 2008-12-17 주식회사 온게임네트워크 Station and method for internet broadcasting interaction type-content and record media recoded program realizing the same
EP2046041A1 (en) * 2007-10-02 2009-04-08 Alcatel Lucent Multicast router, distribution system,network and method of a content distribution
US7869705B2 (en) 2008-01-21 2011-01-11 Microsoft Corporation Lighting array control
CA2727569C (en) 2008-06-09 2017-09-26 Vidyo, Inc. Improved view layout management in scalable video and audio communication systems
US8319820B2 (en) * 2008-06-23 2012-11-27 Radvision, Ltd. Systems, methods, and media for providing cascaded multi-point video conferencing units
US8130257B2 (en) 2008-06-27 2012-03-06 Microsoft Corporation Speaker and person backlighting for improved AEC and AGC
KR101234495B1 (en) * 2009-10-19 2013-02-18 한국전자통신연구원 Terminal, node device and method for processing stream in video conference system
US8780978B2 (en) * 2009-11-04 2014-07-15 Qualcomm Incorporated Controlling video encoding using audio information
KR101636716B1 (en) 2009-12-24 2016-07-06 삼성전자주식회사 Apparatus of video conference for distinguish speaker from participants and method of the same
JP5999873B2 (en) * 2010-02-24 2016-09-28 株式会社リコー Transmission system, transmission method, and program
US20110276894A1 (en) * 2010-05-07 2011-11-10 Audrey Younkin System, method, and computer program product for multi-user feedback to influence audiovisual quality
US8553068B2 (en) * 2010-07-15 2013-10-08 Cisco Technology, Inc. Switched multipoint conference using layered codecs
GB201017382D0 (en) 2010-10-14 2010-11-24 Skype Ltd Auto focus
WO2012072276A1 (en) * 2010-11-30 2012-06-07 Telefonaktiebolaget L M Ericsson (Publ) Transport bit-rate adaptation in a multi-user multi-media conference system
WO2012100410A1 (en) * 2011-01-26 2012-08-02 青岛海信信芯科技有限公司 Method, video terminal and system for enabling multi-party video calling
US8848025B2 (en) 2011-04-21 2014-09-30 Shah Talukder Flow-control based switched group video chat and real-time interactive broadcast
GB2491852A (en) * 2011-06-13 2012-12-19 Thales Holdings Uk Plc Rendering Active Speaker Image at Higher Resolution than Non-active Speakers at a Video Conference Terminal
KR101183864B1 (en) 2012-01-04 2012-09-19 휴롭 주식회사 Hub system for supporting voice/data share among wireless communication stations and method thereof
CN103533294B (en) * 2012-07-03 2017-06-20 中国移动通信集团公司 The sending method of video data stream, terminal and system
JP6174501B2 (en) * 2014-02-17 2017-08-02 日本電信電話株式会社 Video conference server, video conference system, and video conference method
CN108134915B (en) * 2014-03-31 2020-07-28 宝利通公司 Method and system for a hybrid topology media conferencing system
CN105450976B (en) * 2014-08-28 2018-08-07 南宁富桂精密工业有限公司 video conference processing method and system
JP6762541B2 (en) 2016-02-29 2020-09-30 株式会社オーディオテクニカ Conference system
EP3270371B1 (en) * 2016-07-12 2022-09-07 NXP USA, Inc. Method and apparatus for managing graphics layers within a graphics display component
US10708728B2 (en) * 2016-09-23 2020-07-07 Qualcomm Incorporated Adaptive modulation order for multi-user superposition transmissions with non-aligned resources
CN107968768A (en) * 2016-10-19 2018-04-27 中兴通讯股份有限公司 Sending, receiving method and device, system, the video relaying of Media Stream
CN106572320A (en) * 2016-11-11 2017-04-19 上海斐讯数据通信技术有限公司 Multiparty video conversation method and system
JP6535431B2 (en) 2017-07-21 2019-06-26 レノボ・シンガポール・プライベート・リミテッド Conference system, display method for shared display device, and switching device
CN111314738A (en) * 2018-12-12 2020-06-19 阿里巴巴集团控股有限公司 Data transmission method and device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0654322A (en) * 1992-07-28 1994-02-25 Fujitsu Ltd System for controlling picture data adaption in tv conference using multi-spot controller
US5629736A (en) * 1994-11-01 1997-05-13 Lucent Technologies Inc. Coded domain picture composition for multimedia communications systems
DE69515838T2 (en) * 1995-01-30 2000-10-12 International Business Machines Corp., Armonk Priority-controlled transmission of multimedia data streams via a telecommunication line
ES2193412T3 (en) * 1996-12-09 2003-11-01 Siemens Ag TELECOMMUNICATIONS PROCEDURE AND SYSTEM FOR THE SUPPORT OF MULTIMEDIA SERVICES THROUGH AN INTERFACE AS WELL AS A CORRUPTED CONFIGURED PAYMENT TERMINAL.
CN100525443C (en) * 1997-03-17 2009-08-05 松下电器产业株式会社 Method and apparatus for processing, transmitting and receiving dynamic image data
US6798838B1 (en) * 2000-03-02 2004-09-28 Koninklijke Philips Electronics N.V. System and method for improving video transmission over a wireless network
US20020093531A1 (en) * 2001-01-17 2002-07-18 John Barile Adaptive display for video conferences

Also Published As

Publication number Publication date
CN1618233A (en) 2005-05-18
GB0202101D0 (en) 2002-03-13
GB2384932B (en) 2004-02-25
JP2005516557A (en) 2005-06-02
GB2384932A (en) 2003-08-06
KR20040079973A (en) 2004-09-16
WO2003065720A1 (en) 2003-08-07
FI20041039A (en) 2004-09-29

Similar Documents

Publication Publication Date Title
GB2384932B (en) Video conferencing system and method of operation
EP1678951A4 (en) System and method for performing distributed video conferencing
EP1545109A4 (en) Video telephone interpretation system and video telephone interpretation method
AU2003290536A8 (en) Method and system for supercompression of compressed digital video
PT3200462T (en) Video decoding apparatus and video decoding method
AU2003303536A8 (en) Video deblocking method and apparatus
EP1557972A4 (en) Streaming system and streaming method
GB0313286D0 (en) Internet video surveillance camera system and method
GB0321083D0 (en) Video communications method and system
HK1086636A1 (en) Motion picture subtitle system and method
HK1164594A1 (en) Method of processing video picture
AU2003254247A8 (en) Method and apparatus for a continuous video conference
HK1087569A1 (en) Image stabilisation system and method
AU2003245253A8 (en) System and method of application processing
HUE054106T2 (en) Picture decoding method and apparatus
AU2003256009A1 (en) Video coding method and device
IL154516A0 (en) Video picture processing method
EP1494129A4 (en) Conversation control system and conversation control method
AU2002256477A1 (en) Color video codec method and system
AU2003233695A1 (en) Method and apparatus for video georegistration
EP1468559A4 (en) Method and system for controlling multimedia video communication
AU2003280197A1 (en) Video coding method and device
EP1603334A4 (en) Video check system and method
EP1449357A4 (en) Method and system for combining video with spatio-temporal alignment
AU2003247039A1 (en) Video coding method and device

Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20080130