Patents Assigned to Leitch Incorporated
  • Splicing compressed, local video segments into fixed time slots in a network feed
    Patent number: 7188354
    Abstract: A method for seamlessly splicing a local commercial segment into an existing network time slot, without decoder buffer overflow or underflow. The vbv_delay of the commercial segment is manipulated (e.g., for a minimum delay or a maximum delay). The pictures from the commercial segment are output for at least a portion of the associated network time slot duration. A determination is made regarding the number of pictures remaining in a stored portion of the incoming network feed or the commercial segment and the output rate is adjusted as required. The vbv_delay of the stored network feed or the vbv_delay of the local commercial segment is adjusted to match the vbv_delay of the incoming network feed.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: March 6, 2007
    Assignee: Leitch Incorporated
    Inventors: Paul W. Lyons, Alfonse A. Acampora, John P. Beltz
  • Single clock reference for compressed domain processing systems with interspersed transport packets
    Patent number: 6473007
    Abstract: A system and method for generating a transport packet stream having an output formatted as an ASI group having a plurality of short and long ASI packets in a fixed sequence. The short and long ASI packet each have an associated transport packet and a fixed number of special idle characters and the transport packets are dispersed among the special idle characters.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: October 29, 2002
    Assignee: Leitch Incorporated
    Inventors: Paul W. Lyons, Alfonse A. Acampora, John P. Beltz