Video teleconferencing for networked workstations
First Claim
1. Video teleconferencing apparatus for a distributed data processing system having a plurality of computer workstations connected by a digital data network, the computer workstations comprising:
- a) source means for a local workstation to send audio and video data across the digital data network as digital data packets to a remote workstation; and
b) receiver means for the local workstation to receive audio and video data from across the digital data network as digital data packets sent from source means of the remote workstation.
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Accused Products
Abstract
A video teleconferencing method and apparatus for computer workstations connected by a digital data network includes a transmission source means for a local workstation to send audio and video teleconference data across the network to one or more remote workstations, and, a receiver for the local workstation to receive audio and video teleconference data back from the remote workstations. The local workstation sends teleconference data to each of the remote workstations over a variable bandwidth digital data connection, and each of the remote workstations returns teleconference data back to the local workstation over another variable bandwidth digital data connection. The transmission source means includes a master software process executing on the local workstation, and the receiver includes a slave software process executing the remote workstation. The master process of a local workstation causes execution of a slave process on a remote workstation for receiving video teleconference data from the local workstation. An audio data transmitter for sends an audio data stream to the remote workstation such that the audio data can be reconstructed into a continuous audio signal. A video transmitter sends video data so that each frame of video data to be sent is inserted into the audio data stream without affecting the continuity of the reconstructed audio signal at the remote workstation.
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Citations
20 Claims
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1. Video teleconferencing apparatus for a distributed data processing system having a plurality of computer workstations connected by a digital data network, the computer workstations comprising:
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a) source means for a local workstation to send audio and video data across the digital data network as digital data packets to a remote workstation; and b) receiver means for the local workstation to receive audio and video data from across the digital data network as digital data packets sent from source means of the remote workstation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. Video teleconferencing apparatus for a distributed data processing system having a plurality of computer workstations connected by a digital data network, the computer workstations comprising:
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a) source means for a local workstation to send audio and video data across the digital data network as digital data packets to a remote workstation, the source means comprising a master process executing on a processor of the local workstation; b) receiver means for the local workstation to receive audio and video data from across the digital data network as digital data packets sent from source means of the remote workstation, the receiver means comprising a slave process executing on a processor of the remote workstation; wherein the master process of a local workstation causes execution of a slave process on a remote workstation for receiving audio and video data sent by the master process of the local workstation over one digital data connection, the slave process on the remote workstation causes execution of a master process on the remote workstation for sending audio and video data to the local workstation, and the master process of the remote workstation causes execution of a slave process on the local workstation for receiving audio and video data sent by the master process of the remote workstation over another digital data connection. - View Dependent Claims (20)
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Specification