Data recording and/or reproducing system

Details Data recording and/or reproducing system Data recording and/or reproducing system

1997-04-09

1999-08-03

Nguyen, Huy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 95, 386105, H04N 576

Patent

active

059335700

ABSTRACT:
A method and apparatus for recording and/or reproducing data for recording and/or reproducing speech or audio data or video data to or from a random-accessible recording medium, in which speech data can be recorded and/or reproduced separately from video data in a virtual data file and in which the number of channels of speech data can be modified while speech data with different numbers of channels are allowed to co-exist in a virtual data file. A video data storage device and a speech data storage device, both being random-accessible, are separately provided for recording/reproducing video data and speech data. A data file for video and a data file for speech, each being divided in plural blocks and recorded by these data storage devices, are managed by a CPU using a file entry, a video data record entry and a speech data record entry stored in a RAM or a file management information storage unit. A control flag including the deletion possibility indicating flag is appended to the video data record entry and to the speech data record entry.

REFERENCES:
patent: 5388009 (1995-02-01), Nagai et al.
patent: 5392265 (1995-02-01), Takazawa
patent: 5568639 (1996-10-01), Wilcox et al.
patent: 5619338 (1997-04-01), Nakai et al.
patent: 5627656 (1997-05-01), Sonohara et al.

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