Reproduction of information using a ring buffer with read and wr

Details Reproduction of information using a ring buffer with read and wr Reproduction of information using a ring buffer with read and wr

1997-10-21

1999-12-28

Nguyen, Huy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386111, H04N 5783

Patent

active

060092319

ABSTRACT:
A data reproducing method and apparatus for providing special reproductions such as a reverse reproduction quickly when it is specified. In the data reproducing apparatus comprising a demodulator for demodulating data read out of a digital video disk by a pickup, a buffer for temporarily storing the demodulated data and a decoder for decoding the data read out of the buffer into original video signals, further included is a control circuit for controlling the buffer so that an unread data area and an already-read data area in the buffer take about half of the total memory capacity, respectively. As a result, the data necessary for reverse reproduction or the like is present in the buffer, allowing the special reproduction to run quickly.

REFERENCES:
patent: 4698698 (1987-10-01), Collins
patent: 5305113 (1994-04-01), Iwamura et al.
patent: 5442390 (1995-08-01), Hooper et al.
patent: 5471450 (1995-11-01), Yonemitsu et al.
patent: 5557419 (1996-09-01), Muto
patent: 5771331 (1998-06-01), Aoki et al.

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