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Video teleconferencing system with digital transcoding

DC
  • US 5,600,646 A
  • Filed: 01/27/1995
  • Issued: 02/04/1997
  • Est. Priority Date: 01/27/1995
  • Status: Expired due to Term
First Claim
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1. A multipoint control unit for receiving compressed video signals from terminals in a conference and for transmitting selected compressed video signals to the terminals, the multipoint control unit comprising:

  • decoding means for decoding the compressed video signals from respective terminals to uncompressed video signals in a pixel domain;

    a time division multiplex bus receiving the uncompressed video signals at timeslots associated with respective terminals, the bus being a parallel pixel bus;

    selector means for selecting the uncompressed video signals from one or more timeslots of the time division multiplex bus; and

    encoding means for encoding the selected uncompressed video signals for transmission to respective terminals.

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