Motion video signal processing for recording or reproducing – Local trick play processing – With randomly accessible medium
Patent
1996-10-02
1999-04-27
Sniezek, Andrew L.
Motion video signal processing for recording or reproducing
Local trick play processing
With randomly accessible medium
386123, 386124, H04N 5917
Patent
active
058972196
ABSTRACT:
A recording and playback apparatus for a digital video cassette recorder is provided with a data conversion unit for recording a compressed video signal in a more compressed format on a digital recording medium and a data inverse recording unit for playing out the recorded video signal. The data conversion unit includes a controller, encoder and multiplexer. The controller has for its inputs ID information decoded from the compressed video data signal by a decoder and a recording signal instructing the recording of the compressed video signal on a recording medium. At the start of picture recording the controller provides a selection signal to a multiplexer and a decoding instruction to an encoder to enable the encoder to recode the entire picture region of the decoded video data in an intraframe manner with a header which contains the decoding instruction information. The data inverse conversion unit includes a header decoder, a buffer controller, and a buffer. The buffer controller has as inputs the decoded instruction information output from the header decoder and a playback signal instructing the playback of compressed video data from the digital recording medium. Thus, both intraframe and interframe coded pictures can be viewed without degradation, even when playout is begun from a stopped position in the middle of a program.
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Lee Choon
Yoo Byoung Koo
Goldstar Co. Ltd.
Sniezek Andrew L.
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