[특허]Videoconferencing apparatus having integrated multi-point conference capabilities

[미국특허] Videoconferencing apparatus having integrated multi-point conference capabilities 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G06F-015/16 H04N-007/14
출원번호	US-0684145 (2000-10-05)
발명자 / 주소	Drell,David
출원인 / 주소	Polycom, Inc.
대리인 / 주소	Wong, Cabello, Lutsch, Rutherford &
인용정보	피인용 횟수 : 25 인용 특허 : 15

초록 ▼

A videoconferencing apparatus includes a multi-point (MP) conference application that enables the apparatus to combine and distribute audio and video signals received from a plurality of remote conference endpoints, thereby obviating the need to provide a separate multi-point control unit having hardware-based inverse multiplexers (IMUXs). The MP conference application is configured to generate, for each remote conference endpoint participating in a conference, discrete instances of a signal processing train by means of dynamically allocable IMUXs, each processing train including a communication process and audio/video/data codecs. The processed audio and video signals are subsequently conveyed to an audio mixer and video switching module for combination with locally-generated audio and video signals. The outputs of the audio mixer and video switching module are sent to each of the plurality of signal processing trains, which process the combined signals according to a transmit mode for distribution to the remote endpoints over the network.

대표청구항 ▼

What is claimed is: 1. A method for conducting a conference between a near conference endpoint and a plurality of remote conference endpoints connected for communication by a network, comprising the steps of: at the near conference endpoint: generating local audio and video signals; receiving audio and video signals from the plurality of remote conference endpoints; creating a plurality of processing trains for processing the received signals, each processing train uniquely corresponding to one of the plurality of remote conference endpoints; processing the received audio and video signals; combining the processed audio and video signals with the local audio and video signals; and transmitting the combined audio and video signals to each of the plurality of remote conference endpoints. 2. The method of claim 1, wherein the step of creating a plurality of processing trains includes creating a communication process and a set of codecs. 3. The method of claim 1, wherein the step of combining the processed audio and video signals is performed using an audio mixer and a video switching module. 4. The method of claim 1 further comprising providing a circuit switch for instantiating the plurality of processing trains, the circuit switch including dynamically allocable inverse multiplexers. 5. The method of claim 3, wherein the video switching module is selectively operable in a continuous presence mode, wherein images corresponding to each of the plurality of conference endpoints are displayed in separate areas of a composite image. 6. A multi-point capable video conferencing endpoint comprising: a network interface for receiving remote audio and video data from a plurality of remote endpoints through a network; an audio interface for receiving local audio data from a local source; a video interface for receiving local video data from a local source; and a CPU programmed to control receipt of the remote audio and video data, receipt of the local audio and video data; combination of the remote audio and video data with the local audio and video data; and transmission of the combined audio and video data to each of the plurality of remote endpoints through the network, wherein the CPU is further programmed to instantiate a plurality of processing trains corresponding to the plurality of remote endpoints, wherein each processing train receives the audio and video data from a single remote endpoint. 7. The multi-point capable video conferencing endpoint of claim 6, wherein each processing train comprises: a communication process for sending and receiving the audio and video data to and from a single remote endpoint; a video codec in communication with the communication process for encoding the sent video data and decoding the received video data; and an audio codec in communication with the communication process for encoding the sent audio data and decoding the received audio data. 8. The multi-point capable video conferencing endpoint of claim 7, further comprising: a video switching module in communication with each of the plurality of processing trains and the video interface for combining the local video data with the remote video data; and an audio mixing module in communication with each of the plurality of processing trains and the audio interface for combining the local audio data with the remote audio data. 9. The multi-point capable video conferencing endpoint of claim 6, wherein the network interface comprises a plurality of ISDN ports corresponding to the plurality of remote endpoints. 10. The multi-point capable video conferencing endpoint of claim 6, wherein the network interface comprises an Ethernet connection.

이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

Hardy Ron, Automatic switching of videoconference focus.
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Vanderwilt, Patrick; Kenoyer, Michael, Conferencing system having an embedded web server, and method of use thereof.
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Hales Jon Benedict ; Mills Michael David ; Miracle Nancy Elizabeth Hendrick, Distributed video communications system.
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Bryan Martin ; Oran Davis, Multi-point communication arrangement and method.
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Shafiee Mohammad Reza, Multi-user video switchable translator.
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Fukuoka Hideyuki,JPX ; Mizuno Hiromi,JPX, Multipoint video conference controlling method and system capable of synchronizing video and audio packets.
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Bruno Richard Frank ; Markowitz Robert Edward, On-demand video conference method and apparatus.
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Arshi Taymoor (Portland OR) Tung Peter (Beaverton OR) Vrvilo Ben (Portland OR) Skarbo Rune (Hillsboro OR) Gutmann Mike (Portland OR) Mirashrafi Mojtaba (Portland OR), PC-based conferencing system.
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Clapp Doug ; Mulder David, Peripheral video conferencing system with control unit that controls presentation of remote video signal through the output connector.
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Thompson Phillip F. (Sheffield Lake OH) Finck Howard D. (Farmington Hills MI) Sheppard Donald K. (Canton MI) DeHetre Gregory G. (Livonia MI), Schedulable automatically configured video conferencing system.
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Prasad Rama R. ; Chu Sheng-Hui ; Xu Yueheng, Synchronization of related audio and video streams.
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Kim Hyung-Gi,KRX ; Kim Young-Keun,KRX ; Wan-Kim Do,KRX ; Jeong Chang-Jin,KRX, Video conference control system using an integrated services digital network.
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Ippolito Peter M. ; Cook Caroline M., Video conferencing apparatus for group video conferencing.
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Lester F. Ludwig ; J. Chris Lauwers, Video conferencing on existing UTP infrastructure.
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William Joseph Beyda ; Shmuel Shaffer ; Vinesh R. Mehta, Video conferencing with adaptive client-controlled resource utilization.
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이 특허를 인용한 특허 (25) 인용/피인용 타임라인 분석

Niu, Ling; Moore, Timothy M.; Wang, Shiwei, Aggregation of video receiving capabilities.
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Niu, Ling; Moore, Timothy M.; Wang, Shiwei, Aggregation of video receiving capabilities.
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Malhotra, Tanu; Kumar, Krishna Anoop, Apparatus and method for providing communication services using multiple signaling protocols.
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Moore, Timothy; Kukoleca, Dalibor; Zheng, Jiannan, Combining direct and routed communication in a video conference.
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Lee, Ming-Chieh; Qian, Tin; Moore, Timothy, Combining multiple bit rate and scalable video coding.
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Khot, Gautam; Ranganath, Prithvi; Belur, Raghuram; Lakshmipathy, Sandeep, Determining a videoconference layout based on numbers of participants.
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Girard,Gregory D., Distributed edge switching system for voice-over-packet multiservice network.
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Wang, Fu; Chen, Jun; Huang, Zhihong; Tong, Xin; Zhang, Liangping; Liu, Junli, Method and meeting terminal for adjusting meeting place cameras in a remote presentation meeting system.
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Shaffer, Shmuel; Khouri, Joseph F.; Chahrouri, Gebran G.; Patel, Labhesh, Method and system for automatic call distribution.
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Holk, Eric T.; Mahajan, Rajneesh; Yerrace, Frank D., Redirection of multiple remote devices.
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Mock, Wayne E.; Kenoyer, Michael L., Status and control icons on a continuous presence display in a videoconferencing system.
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Chu, Peter L., Stereo to mono conversion for voice conferencing.
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Weiser, Reginald; McGravie, Richard; Diouskine, Roman; Teboul, Jeremy, Systems and methods for providing video conferencing services via an ethernet adapter.
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Goyal, Ashish; Kulkarni, Hrishikesh Gopal; Rao, Shantha Kumari Harohalli Sathyanarayana, Systems and methods for selecting videoconferencing endpoints for display in a composite video image.
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Lee, Ming Chieh; Han, Mu; Moore, Tim, Video conference rate matching.
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King, Keith C.; Mock, Wayne E., Video conferencing device which performs multi-way conferencing.
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Kenoyer, Michael L.; Jenkins, Michael V., Video conferencing system transcoder.
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King, Keith C.; Mock, Wayne E., Video conferencing system which allows endpoints to perform continuous presence layout selection.
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King, Keith C.; Mock, Wayne E., Video conferencing system which allows endpoints to perform continuous presence layout selection.
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Puri, Rohit; Chou, Jim, Video conferencing with multipoint conferencing units and multimedia transformation units.
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Puri, Rohit; Chou, Jim, Video conferencing with multipoint conferencing units and multimedia transformation units.
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King, Keith C.; Mock, Wayne E., Video decoder which processes multiple video streams.
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King, Keith C.; Brandt, Matthew K.; Mock, Wayne E., Videoconferencing endpoint extension.
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King, Keith C.; Goyal, Ashish; Kulkarni, Hrishikesh Gopal, Virtual distributed multipoint control unit.
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King, Keith C.; Mock, Wayne E., Virtual multiway scaler compensation.
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[미국특허] Videoconferencing apparatus having integrated multi-point conference capabilities 원문보기

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[미국특허] Videoconferencing apparatus having integrated multi-point conference capabilities 원문보기

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이 특허에 인용된 특허 (15) 인용/피인용 타임라인 분석

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