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Patent
Title
Verfahren zum Einbringen verborgener Information in einen Notensatz
Other Title
Digital watermark inclusion method in musical note score printing, involves altering geometric elements of note score only in digital form without reducing legibility of note score.
Abstract
Die vorliegende Erfindung betrifft ein Verfahren zum Einbringen verborgener Information in einen Notensatz. Bei dem Verfahren werden geometrische Elemente des Notensatzes nach einem vorgebbaren Schluessel in ihrer geometrischen Form und/oder ihrem gegenseitigen geometrischen Verhaeltnis gegenueber der Originalversion derart veraendert, dass die Veraenderungen die einzubringende Information in digitaler Form tragen und die Lesbarkeit des Notensatzes nicht vermindern. Das Verfahren ermoeglicht insbesondere die Einbringung einer Kennzeichnung in einen Notensatz, die durch Kopieren oder einfache Manipulationen des Notensatzes nicht verloren geht.
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NOVELTY - Some of the geometric elements or their reciprocal geometric ratio of the note score are altered according to a specified key, from the original representation. The alterations are made only in digital representation, without reducing the legibility of the note score. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (a) Device for including digital watermark; (b) Method of reading out note score with included watermark USE - For inclusion of digital watermark that bears owner's code, musical area code, service provider's code, composer's code, title, etc, to prevent unauthorized copy of music from note score or images in PDF or in GIF file formats and printed on paper i.e., for copyright protection. ADVANTAGE - Provides watermark which is invisible even to professional musicians. The watermark made is difficult to remove, thus maintains copyright even if music data is distributed through Internet, while the document is not impaired by watermark.
Inventor(s)
Patent Number
2000-10023759
Publication Date
2001
Language
German