Watermark detecting apparatus

Details Watermark detecting apparatus Watermark detecting apparatus

2006-08-01

2006-08-01

Tran, Thai (Department: 2621)

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

C386S349000, C386S349000, C386S349000, C386S349000, C386S349000, C386S349000, C360S060000, C380S201000, C380S202000, C380S203000

Reexamination Certificate

active

07085474

ABSTRACT:
An information detecting apparatus which can surely detect specific information such as a digital watermark in high-speed data stream and can be configured at low cost. The apparatus extracts data including specific information from a high-speed data stream, and detects the specific information in the extracted data at low speed.

REFERENCES:
patent: 5729516 (1998-03-01), Tozaki et al.
patent: 6108434 (2000-08-01), Cox et al.
patent: 6674874 (2004-01-01), Yoshida et al.
patent: 6700989 (2004-03-01), Itoh et al.
patent: 6738493 (2004-05-01), Cox et al.
patent: 2328579 (1999-02-01), None
patent: WO 00/04722 (2000-01-01), None
Ton Kalker et al.; Efficient Detection of a Spatial Spread-Spectrum Watermark in MPEG Video Streams; vol. 1.; Sep. 2000.

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