Embedding supplementary data in an information signal

Details Embedding supplementary data in an information signal Embedding supplementary data in an information signal

2002-10-28

2009-12-29

Tieu, Binh K (Department: 2614)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Quadrature carriers

C370S210000

Reexamination Certificate

active

07639599

ABSTRACT:
Disclosed is a method of adjusting a supplementary data signal (wm(n)) to be embedded in an information signal (x(n)), for example an audio signal. The method comprises the steps of determining (301) a position where a predetermined property of the information signal exceeds a predetermined threshold, e.g. an attack position, and suppressing (302) the supplementary data signal in a predetermined neighbourhood of the determined position.

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