Claims
- 1. A method for creating a media identifier, comprising the steps of:
reading a media comprising tracks and a table of contents, the table of contents comprising a track length for each of the tracks; and calculating a string of symbols comprising one symbol representing the length of each track relative to an arithmetic or logical operation on one or more tracks contained within the media.
- 2. The method of claim 1 wherein the media is an audio CD or other recording comprising a sequence of tracks.
- 3. The method of claim 1 wherein a symbol in the string of symbols represents the relative length of a current track to the product of an operation on one or more tracks contained within the media.
- 4. A method for creating a media identifier, comprising the steps of:
reading the media comprising tracks and a table of contents, the table of contents comprising a beginning track offset for each of the tracks; and calculating an identifier by determining an arithmetic metric of the difference of lengths of the tracks recorded on the media.
- 5. The method of claim 4 wherein the arithmetic metric is one of: average absolute difference, standard deviation of track length, or average square of differences.
- 6. The method of claim 4 wherein the arithmetic metric further determines a total number of tracks with differing lengths.
- 7. The method of claim 4 wherein the arithmetic metric further determines minimum differences of lengths of the tracks recorded on the media.
- 8. The method of claim 7 wherein the arithmetic metric is the minimum absolute differences of lengths.
- 9. The method of claim 4 wherein the arithmetic metric further determines maximum differences of lengths of tracks recorded on the media.
- 10. The method of claim 9 wherein the arithmetic metric is the maximum absolute differences of lengths.
- 11. A method of using a media identifier to index a database of records containing information about recorded media products, the recorded media products comprising tracks and a table of contents, the method comprising the steps of:
using the media identifier to identify a subset of records in the database; and searching the identified records for a most likely match of media identifier to database record.
- 12. The method of claim 11 wherein the media identifier is calculated as a string of symbols comprising one symbol representing the length of each track relative to an arithmetic or logical operation on one or more tracks contained within the media.
- 13. The method of claim 11 wherein the media identifier is calculated by determining an arithmetic metric of the difference of lengths of the tracks recorded on the media.
RELATED APPLICATION(S)
[0001] This application claims the benefit of U.S. Provisional Application No. 60/309,123 filed on Jul. 31, 2001. The entire teachings of the above application are incorporated herein by reference.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60309123 |
Jul 2001 |
US |