Patent ID: 6389218
Filing Date: 2002-05-14
Classification: H04N

Abstract:
Apparatus for producing a plurality of encoded video bitstreams from a video sequence comprising:a first encoder for producing a first bitstream that contains information that, when decoded, produces a standard forward play video frame sequence; a frame subsampler; a buffer that stores subsampled frames of the video sequence; a second encoder for producing a second bitstream that contains information that, when decoded, produces a first trick play frame sequence; a third encoder for producing a third bitstream that contains information that, when decoded, produces a second trick play video frame sequence; and a controller that selects subsampled frames from the buffer and couples the selected frames to the second and third encoders, wherein at least one of said second and third bitstreams comprises both intra-coded and inter-coded video frames, including inter-coded video frames having non-zero motion vectors.