Videoconference recording
First Claim
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1. A videoconference system, comprising:
- a plurality of videoconference stations communicating with each other over a packet data network, each of said videoconference stations capable of generating an original videoconference signal for transmission in real-time to other of said conference stations and for recording for future use;
each videoconference station comprising a first encoder for encoding said original videoconference signal into a first format having a first quality that is suitable for real-time streaming transmission to said other of said videoconference stations;
at least one of said videoconference stations further comprising;
a second encoder for encoding said original videoconference signal into a second format having a second quality that is suitable for recording; and
a storage device for saving said videoconference signal in said second format.
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Abstract
A videoconference system in which a first encoder is provided for encoding the original video signal into a first format suitable for streaming transmission, and a second encoder is provided for encoding the original video signal into a second format having a higher quality or less storage as compared to the first format. The first and second encoder works independently to each other and therefore the parameters may be optimized independently.
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Citations
22 Claims
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1. A videoconference system, comprising:
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a plurality of videoconference stations communicating with each other over a packet data network, each of said videoconference stations capable of generating an original videoconference signal for transmission in real-time to other of said conference stations and for recording for future use;
each videoconference station comprising a first encoder for encoding said original videoconference signal into a first format having a first quality that is suitable for real-time streaming transmission to said other of said videoconference stations;
at least one of said videoconference stations further comprising;
a second encoder for encoding said original videoconference signal into a second format having a second quality that is suitable for recording; and
a storage device for saving said videoconference signal in said second format. - View Dependent Claims (2, 3)
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4. A videoconference station for generating an original videoconference signal to be transmitted to other videoconference stations over a packet data network, comprising:
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a first encoder for encoding said original videoconference signal into a first format having a quality suitable for real-time transmission to a conference bridge;
a second encoder for encoding said original videoconference signal into a second format having a quality suitable for recording; and
a recorder for recording said videoconference signal in said second format. - View Dependent Claims (5, 6, 7)
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8. A method of processing an original videoconference signal generated from a videoconference station in a videoconference system during a videoconference, comprising the steps of:
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encoding said original videoconference signal into a first format suitable for streaming transmission over a packet data network to other videoconference stations in said videoconference system;
encoding said original videoconference signal into a second format having a higher quality than said first format;
streaming in real time said videoconference signal in said first format to said other conference stations through a conference bridge over said packet data network; and
saving said videoconference signal in said second format in a non-volatile storage for future retrieving. - View Dependent Claims (9, 10, 11, 14, 15)
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12. Apparatus for transmitting and recording a signal generated at a videoconference, said apparatus comprising:
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a plurality of videoconferencing terminals for communicating voice and video signals with each other;
a first encoder for encoding an original video image from one of said terminals using a first encoding algorithm to produce a first quality encoded image;
a second encoder for encoding said original video image from said one of said terminals using a second encoding algorithm to produce a second quality encoded image;
a storage system for storing said second quality encoded image;
a transmission system for transmitting said first quality encoded image to other conferees during said videoconference; and
retransmission means for transmitting said second quality encoded image from said storage system to at least one remote recipient after termination of said conference. - View Dependent Claims (13, 16)
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- 17. A method of encoding a video image for use in a videoconferencing system comprising the steps of outputting an original digital video image and encoding the same original digital video image using at least two different encoders, transmitting the image encoded using a first encoder to conferees in real-time and later transmitting the image encoded using a second encoder to at least one party wherein the second encoded image is delayed by a relatively long latency.
Specification