Avid Technology Limited

Barry Horne

Jeffrey D Kurtze

Harry Der

Two channels of output of sequences of digital still images are input to a DVE system which has pipelined memory circuits rather than frame buffers. The DVE system includes a DVE unit which performs arbitrary three-dimensional, digital video effects on the two channels of input to provide a composite output sequence. The DVE system thus operates on sequences of digital still images rather than video signals. The DVE system is also adapted to prevent output upon receipt of a control signal, which may indicate that an output pipeline is full. The DVE system also provides a control signal to prevent input when it cannot receive input or it is not providing output.

Media pipeline with mechanism for real-time addition of digital video

Two channels of output of sequences of digital still images are input to a DYE system which has pipelined memory circuits rather than frame buffers. The DVE system includes a DVE unit which performs arbitrary three-dimensional, digital video effects on the two channels of input to provide a composite output sequence. The DVE system thus operates on sequences of digital still images rather than video signals. The DVE system is also adapted to prevent output upon receipt of a control signal, which may indicate that an output pipeline is full. The DVE system also provides a control signal to prevent input when it cannot receive input or it is not providing output.

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Acton, MA, United States of America

Barry Horne