Enhanced table of contents (TOC) identifiers
US7688686B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2005 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Jan 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/2545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for identifying the contents of a compact disc manipulating a received table of contents (TOC) identifier associated with the compact disc. The method parses portions of the TOC comprising a series of numbers corresponding to track offsets for each track of the compact disc. The method further determines the first number from the series of numbers, subtracts the first number from each number in the series of numbers to form an altered series of numbers, and concatenates the altered series of numbers to form an altered string that comprises the altered TOC identifier. The altered TOC identifier may then be compared to a plurality of canonical TOC identifiers to identify the contents of the compact disc. Another method generates a generic TOC identifier for a plurality of compact discs known to contain the same data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.