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Method and apparatus for centralized multipoint conferencing in a packet network 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G04L-012/18
출원번호 US-0373873 (1999-08-12)
발명자 / 주소
  • John E. O'Neil
  • George W. Kajos
출원인 / 주소
  • Ezenia! Inc.
대리인 / 주소
    Hamilton Brook Smith & Reynolds, P.c.
인용정보 피인용 횟수 : 50  인용 특허 : 6

초록 ▼

A centralized multipoint conferencing arrangement uses a combination of multicast and unicast transmissions that is bandwidth efficient. A method of conferencing includes transmitting multimedia streams from endpoint terminals to a central resource such as a multipoint control unit (MCU) using unica

대표청구항 ▼

1. A method of conferencing in a packet network, the method comprising:transmitting first multimedia streams from endpoint terminals to a central resource; processing the first multimedia streams in the central resource to generate second and third multimedia streams; and transmitting the second mul

이 특허에 인용된 특허 (6)

  1. Doeringer Willibald (Langnau am Albis CHX) Dykeman Douglas (Rueschlikon NC CHX) Edwards Allan K. (Raleigh NC) Pozefsky Diane P. (Chapel Hill NC) Sarkar Soumitra (Cary NC) Turner Roger D. (Cary NC), Inter-domain multicast routing.
    상세보기
  2. Hoang Hieu M. ; Johnson Brian W., Multicast data communications switching system and associated method.
    상세보기
  3. Monteiro Antonio M. ; Butterworth James F., Multicasting method and apparatus.
    상세보기
  4. Virgile Kenneth (Lexington MA), Network bridge with multicast forwarding table.
    상세보기
  5. Ng Dennis (Northboro MA) Yang Jian (Norwood MA) Eyuboglu M. Vedat (Concord MA), System, method and multipoint control unit for multipoint multimedia conferencing.
    상세보기
  6. Polomski Mark D. (Hollis NH), Video teleconferencing system with digital transcoding.
    상세보기

이 특허를 인용한 특허 (50)

  1. Brown, Scott K.; Gorman, Bradley Paul; Patterson, Brooke Lamont; Filteau, Mark Lionel; Mason, Kevin Eugene; Manchester, Eric Adam, Adding advertising content to media content.
    상세보기
  2. Hamilton, Chris, Control of internet based video conferencing.
    상세보기
  3. Koide, Masami; Suzuki, Akira, Data communication method, system and program using unicast and multicast communications.
    상세보기
  4. LeBlanc, Wilf, Distributed multi-party conferencing system.
    상세보기
  5. Brown, Scott K., Duplicating digital streams for digital conferencing using switching technologies.
    상세보기
  6. Brown, Scott K., Duplicating digital streams for digital conferencing using switching technologies.
    상세보기
  7. Brown, Scott K., Duplicating digital streams for digital conferencing using switching technologies.
    상세보기
  8. Brown,Scott K., Duplicating digital streams for digital conferencing using switching technologies.
    상세보기
  9. Weigand, Gilbert G.; Raduchel, William J., Duplicating switch for streaming data units to a terminal using different communication protocols.
    상세보기
  10. Weigand, Gilbert G.; Raduchel, William J., Duplicating switch for streaming data units to a terminal using different communication protocols.
    상세보기
  11. Schirdewahn, Jochen Christof, Dynamic picture layout for video conferencing based on properties derived from received conferencing signals.
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  12. Tidwell, Paul D.; Moore, Timothy M.; Xiang, Dong, Establishing a multiparty session by sending invitations in parallel.
    상세보기
  13. Bill, David S.; Brown, Scott K.; Raduchel, William J.; Weigand, Gilbert G.; Amen-Kroeger, Christopher L., Generating multiple data streams from a single data source.
    상세보기
  14. Bill,David S.; Weigand,Gilbert G.; Brown,Scott K.; Raduchel,William J.; Amen Kroeger,Christopher L., Generating multiple data streams from a single data source.
    상세보기
  15. Sekaran, Dhigha; Rao, Deepak P.; Narayanan, Sankaran, High availability conferencing.
    상세보기
  16. Sekaran, Dhigha; Rao, Deepak P.; Narayanan, Sankaran, High availability conferencing.
    상세보기
  17. Brown, Scott K.; Gorman, Bradley Paul; Patterson, Brooke Lamont; Filteau, Mark Lionel; Mason, Kevin Eugene; Manchester, Eric Adam, Inserting advertising content.
    상세보기
  18. Brown, Scott K.; Gorman, Bradley Paul; Patterson, Brooke Lamont; Filteau, Mark Lionel; Mason, Kevin Eugene; Manchester, Eric Adam, Inserting advertising content.
    상세보기
  19. Baxley, Warren E.; Clemson, Gregory A.; Ernstrom, William P.; Nylander, Eric J.; Stark, Thomas W.; Yackey, Jr., Thomas E., Large-scale, fault-tolerant audio conferencing in a purely packet-switched network.
    상세보기
  20. de Oliveira, Marcelo Gomes, Method and apparatus for selecting a media processor to host a conference.
    상세보기
  21. Barave, Amit P.; Al-Muhtasib, Leila A.; Shaffer, Shmuel; Eckel, Charles U., Method and apparatus for unicast and multicast media processing.
    상세보기
  22. Lia,Tom Erik; Aalerud,Bjorn; Nilsen,Geir Scott, Method and apparatus for video conferencing having dynamic picture layout.
    상세보기
  23. Laursen,Arthur I.; Israel,David, Method and system for direct access to web content via a telephone.
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  24. Laursen, Arthur I.; Israel, David; Stanwyck, Donald A., Method and system for distributed conference bridge processing.
    상세보기
  25. Ho, Chi Fai; Chiu, Shin Cheung Simon, Method and system for multiple party telephone call.
    상세보기
  26. LoGalbo, Robert D.; Hiben, Bradley M., Method and system for peer to peer wide area network communication.
    상세보기
  27. Laursen, Arthur I.; Israel, David; McKnight, Thomas, Method and system for providing media services.
    상세보기
  28. Israel,David; Laursen,Arthur Irvin; Dost,Serkan Recep, Method and system for switching among independent packetized audio streams.
    상세보기
  29. Halavy, Avishay; Yassur, Amir, Method and system for synchronizing audio and video streams in media relay conferencing.
    상세보기
  30. Smyth,Joseph; McCormack,Tony, Methods of controlling video signals in a video conference.
    상세보기
  31. Brown, Scott K., Modifying payloads of digital streams for digital conferencing.
    상세보기
  32. Wu, Jianming; Tanaka, Yoshinori; Obuchi, Kazuhisa; Azuma, Mitsuhiro; Taniguchi, Tomohiko, Network coding method and network coding apparatus.
    상세보기
  33. Firestone, Scott, Non-causal speaker selection for conference multicast.
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  34. Brown, Scott K., Prioritizing digital streams during digital conferencing.
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  35. Goyal, Ashish; Kulkarni, Hrishikesh G.; Chouhan, Hitesh; Srinivas, Sampath Kumar; Wamorkar, Vivek; Belur, Raghuram, Selective audio combination for a conference.
    상세보기
  36. Tidwell, Paul D.; Moore, Timothy M., Supporting a serial and a parallel invitation protocol.
    상세보기
  37. Tighe,James R.; Higgins,Ronald D.; Platt,Richard B.; Bell,Robert T., System and method for a virtual telephony intermediary.
    상세보기
  38. Pearce,Christopher E.; Whetten,Delon R.; Michalewicz,Larry G., System and method for enabling multicast telecommunications.
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  39. Pearce, Christopher E.; Whetten, Delon R.; Higgins, Ronald D.; Henning, Scott, System and method for maintaining a communication link.
    상세보기
  40. Tighe, James R.; Higgins, Ronald D.; Platt, Richard B.; Bell, Robert T., System and method for providing security in a telecommunication network.
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  41. Tighe,James R.; Higgins,Ronald D.; Platt,Richard B.; Bell,Robert T., System and method for providing security in a telecommunication network.
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  42. Firestone,Scott S.; Friedrich,Walter R.; Ismail,Nermin M.; Lantz,Keith A.; Sarkar,Shantanu; Surazski,Luke K.; Wu,Duanpei, System and method for providing video conferencing synchronization.
    상세보기
  43. Weigand, Gilbert G.; Raduchel, William J., Time-shifting streaming data.
    상세보기
  44. Satterlee, Michael; Cheikhali, Jamil; Gibbons, John F.; Shackleton, Neal A., Video conference system.
    상세보기
  45. Satterlee, Michael; Cheikhali, Jamil; Gibbons, John F.; Gosine, Jai Narayn, Video conference system and method.
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  46. Satterlee, Michael; Cheikhali, Jamil; Gibbons, John F.; Shackleton, Neal A., Video conference system and method using multicast and unicast transmissions.
    상세보기
  47. Hamilton, Chris, Video conferencing system.
    상세보기
  48. Hori, Masato; Kobayashi, Yoshikazu, VoIP system, VoIP server and client, and multicast packet communication method.
    상세보기
  49. Burg, Frederick Murray, Voice-over-IP enabled chat.
    상세보기
  50. Burg,Frederick Murray, Voice-over-IP enabled chat.
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