System and method for generating and using table of content (TOC) prints
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United States of America Patent
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Sep 15, 2009
Grant Date -
N/A
app pub date -
Aug 29, 2006
filing date -
Aug 29, 2006
priority date (Note) -
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Abstract
Table of contents (TOC) information contained in an audio CD is used to generate a TOC print which may be used for identifying the CD. The TOC print is generated based on the lengths of the tracks contained in the CD. A track vector is generated based on each track length and a matrix is created using the generated track vectors. A singular value decomposition (SVD) computation is performed on the matrix for decomposing the matrix into a set of linearly independent basis vectors. One or more of the basis vectors are selected and set as the TOC print for the CD. Once the TOC print has been generated, the TOC print may be compared against the TOC prints of known CDs in a central database to retrieve from the database metadata information stored in association with the known CDs.
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