DVD-compatible optical recording disk conveying audio signals en

Details DVD-compatible optical recording disk conveying audio signals en DVD-compatible optical recording disk conveying audio signals en

1997-09-29

2000-12-12

Nguyen, Huy

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386126, H04N 5928

Patent

active

061609536

ABSTRACT:
An optical recording disk has audio signals recorded as data encoded in accordance with DVD specifications, both as PCM data and as single bit stream data that are generated by sigma-delta modulation, thereby providing both the improved audio reproduction capability of single bit stream data and also compatibility with existing types of DVD playback apparatus. Data are recorded using proposed new DVD stream modes, having 10 data channels, 48 kHz PCM sampling frequency and 16 or 20 bits/sample, with the ratio (2:8) of data channel capacities allocated to the PCM data and single bit stream data being made identical to the ratio of the respective bit rates at which the PCM data and single bit stream data are generated.

REFERENCES:
patent: 5404248 (1995-04-01), Shimoda et al.
patent: 5748835 (1998-05-01), Lee
patent: 5819004 (1998-10-01), Azadegan et al.
patent: 5872755 (1999-02-01), Inazawa et al.

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