Data processing: speech signal processing – linguistics – language – Speech signal processing – Application
Reexamination Certificate
2006-03-21
2006-03-21
Dorvil, Richemond (Department: 2654)
Data processing: speech signal processing, linguistics, language
Speech signal processing
Application
C704S226000
Reexamination Certificate
active
07016846
ABSTRACT:
The invention relates to a method of checking the correct operation of a signal transformation wherein a input signal is transformed into an output signal. The method comprises: deriving a first robust feature from the input signal; deriving a second robust feature from the output signal; comparing said first and second robust features; in case of sufficient sumilarity, concluding a correct operation of said signal transformation, and in case of insufficient sumilarity, concluding a false operation of said signal transformation. In a special embodiment, the method is applied wherein the first robust feature is embedded in the input signal through watermark technology, the thus obtained signal being transmitted to a receiver so as to retrieve an output signal corresponding to said input signal.
REFERENCES:
patent: 6021491 (2000-02-01), Renaud
patent: WO9515522 (1995-08-01), None
Fridrich et al., “Robust Hash Fucntions for Digital Watermarking,” ITCC 2000, Las Vegas, Nevada, Mar. 27-29, 2000, pp. 173-178.
Lin, Ching-Yung, “Watermarking and Digital Signature Techniques for Multimedia Authentication and Copyright Protection,” PhD thesis in the graduate school of arts and sciences at Columbia University, Dec. 2000.
Lin et al: “Issues And Solutions For Authenticating MPEG Video” Proceedings Of The SPIE , SPIE Bellingham, VA, US, vol. 3657, Jan. 25, 1999, pp. 54-65.
Schneider et al: “A Robust Content Based digital Signature For Image Authentication” Proceedings Of The International Conference On Image Processing (ICIP) Lausanne, Sep. 16-19, 1996, New York, IEEE, US, vol. 3, Sep. 16, 1996, pp. 227-230.
Bruekers Alphons Antonius Maria Lambertus
Haitsma Jaap Andre
Kalker Antonius Adrianus Cornelis Maria
Van Der Veen Minne
Dorvil Richemond
Harper V. Paul
Koninklijke Philips Electronics , N.V.
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