Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1995-06-06
1998-03-31
Chevalier, Robert
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386111, H04N 591, H04N 5917
Patent
active
057347840
ABSTRACT:
A video recording medium, video signal processor, and method are provided. The video signal processor includes a transcoder for receiving a video input signal comprising a plurality of input signal frames, each of the input signal frames including at least one of intraframe data and interframe data, and for constructing a corresponding plurality of system frames from the input signal frames, each of the system frames having a fixed length and including a first portion, having a first fixed length, including intraframe data and excluding interframe data, and a second portion, having a second fixed length, including interframe data and excluding intraframe data. By using a fixed system frame length, by using fixed lengths for the intraframe and interframe data segments, and by appropriately positioning these segments on respective recording tracks, the recording heads record only intraframe data from the sequential recording tracks as the heads diagonally traverse the tracks along their trick mode head trajectory during trick mode operation. The intraframe data thus read can be used directly to produce a display of a TV image which, although imperfect, is acceptable to the viewer.
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Niimura Kazuharu
Tsinberg Mikhail
Chevalier Robert
Kabushiki Kaisha Toshiba
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