Data recording/reproducing apparatus and method

Details Data recording/reproducing apparatus and method Data recording/reproducing apparatus and method

2005-09-02

2011-11-01

Atala, Jamie (Department: 2484)

Motion video signal processing for recording or reproducing

Video processing for recording

With compression

C386S345000, C386S347000

Reexamination Certificate

active

08050539

ABSTRACT:
Information that identifies key frames in video data within multimedia data is generated as reproduction controlling data and the reproduction controlling data is positioned at a predetermined position in the multimedia data. Upon special reproduction, the reproduction controlling data can be used to easily identify, read out, and reproduce key frames that should be used for random access and the like. By positioning the reproduction controlling data in an area within the multimedia data that is ignored by conventional apparatuses, file compatibility can be also maintained. This attains increased efficiency of special reproduction processing of multimedia that has ISO Base file format or a similar format.

REFERENCES:
patent: 6249640 (2001-06-01), Takiguchi et al.
patent: 6628890 (2003-09-01), Yamamoto et al.
patent: 7062758 (2006-06-01), Yokoyama
patent: 11-261964 (1999-09-01), None
patent: 2000-224543 (2000-08-01), None

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