System and method for generating and using table of content (TOC) prints
First Claim
1. A computer implemented method for identifying a first collection of recordings, each recording having a temporal position in the first collection, the method comprising:
- retrieving a temporal length for each of M recordings in the first collection, each temporal length being based on the temporal position of the corresponding one of the M recordings, wherein M is a positive integer value;
generating M track vectors for the M recordings, each of the M track vectors including N vector elements, each of the N vector elements being a function of the temporal length for the corresponding recording, wherein N is a positive integer value;
generating an M×
N matrix based on the track vectors generated for the plurality of recordings;
decomposing the matrix into a set of basis vectors; and
storing one or more of the basis vectors as an identifier for the first collection.
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Accused Products
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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Citations
20 Claims
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1. A computer implemented method for identifying a first collection of recordings, each recording having a temporal position in the first collection, the method comprising:
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retrieving a temporal length for each of M recordings in the first collection, each temporal length being based on the temporal position of the corresponding one of the M recordings, wherein M is a positive integer value; generating M track vectors for the M recordings, each of the M track vectors including N vector elements, each of the N vector elements being a function of the temporal length for the corresponding recording, wherein N is a positive integer value; generating an M×
N matrix based on the track vectors generated for the plurality of recordings;decomposing the matrix into a set of basis vectors; and storing one or more of the basis vectors as an identifier for the first collection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A server identifying a first collection of recordings, each recording having a temporal position in the first collection, the server comprising:
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a processor; and a memory operably coupled to the processor and having program instructions stored therein, the processor being operable to execute the program instructions, the program instructions including; retrieving a temporal length for each of M recordings in the first collection, each temporal length being based on the temporal position of the corresponding one of the M recordings, wherein M is a positive integer value; generating M track vectors for the M recordings, each of the M track vectors including N vector elements, each of the N vector elements being a function of the temporal length for the corresponding recording, wherein N is a positive integer value; generating an M×
N matrix based on the track vectors generated for the plurality of recordings;decomposing the matrix into a set of basis vectors; and storing one or more of the basis vectors as an identifier for the first collection. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification