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US 9,286,912 B2Granted
Methods and apparatus for identifying media
AssigneeThe Nielsen Company (US), LLC
InventorsVenugopal Srinivasan, Alexander Topchy
Life of this patent
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Abstract
Methods and apparatus are disclosed for identifying media and, more particularly, to methods and apparatus for decoding identifiers after broadcast. An example method includes a portion of an identifying code from a media signal, determine a partition of the look-up table based on the portion of the identifying code wherein the partition of the look-up table includes reference signatures associated with the portion of the identifying code, and identify the media signal by comparing a signature extracted from the media signal to reference signatures in the partition of the look-up table.
Claims42
A method comprising:
- determining, by executing an instruction with a processor, an identifying timestamp that is unreadable or otherwise unavailable, the identifying timestamp associated with an identifying code obtained from a media signal;
- determining, by executing an instruction with the processor, an approximate time from the identifying timestamp;
- determining, by executing an instruction with the processor, a time range based on the approximate time;
- and
- identifying, by executing an instruction with the processor, entries of a look-up table for inclusion in a partition of the look-up table, the entries including timestamps in the time range;
- constructing, by executing an instruction with the processor, based on the entries, the partition of the look-up table including respective reference signatures;
- comparing, by executing an instruction with the processor, a signature extracted from the media signal to the reference signatures in the partition of the look-up table;
- and
- identifying, by executing an instruction with the processor, media associated with the media signal based on the comparing.
6 more elements
A method comprising:
- determining a portion of an identifying code from a media signal, the portion of the identifying code including an identifying timestamp that is unreadable or otherwise unavailable;
- determining an approximate timestamp from the identifying timestamp;
- determining a time range based on the approximate timestamp;
- identifying entries of a look-up table for inclusion in a partition of the look-up table, the entries including timestamps in the time range, the partition of the look-up table including reference signatures associated with the portion of the identifying code;
- and
- identifying the media signal by comparing a signature extracted from the media signal to reference signatures in the partition of the look-up table.
3 more elements
A system for identifying media, the system comprising:
- a code extractor to determine an identifying timestamp that is unreadable or otherwise unavailable, the identifying timestamp associated with an identifying code from a media signal;
- an interface to:
- determine an approximate time from the identifying timestamp;
- determine a time range based on the approximate time;
- and
- identify entries of a look-up table for inclusion in a partition of the look-up table, the entries including timestamps in the time range;
- construct based on the entries, the partition of the look-up table including respective reference signatures;
- and
- a media identifier to compare a signature extracted from the media signal to the reference signatures in the partition of the look-up table and identify media associated with the media signal based on the comparison.
6 more elements
A system for identifying media, the system comprising:
- a code extractor to determine a portion of an identifying code from a media signal, the portion of the identifying code containing an identifying timestamp, a portion of the identifying timestamp being unreadable or otherwise unavailable;
- an interface to:
- determine an approximate timestamp from the identifying timestamp,
- determine a time range based on the approximate timestamp, and
- identify entries of a look-up table for inclusion in a partition of the look-up table, the entries including timestamps in the time range, the partition of the look-up table including reference signatures associated with the portion of the identifying code;
- and
- a media identifier to identify the media signal by comparing a signature extracted from the media signal to reference signatures in the partition of the look-up table.
4 more elements
A non-transitory computer readable medium comprising machine readable instructions, which, when executed, cause a machine to at least:
- determine, by executing an instruction with a processor, an identifying timestamp that is unreadable or otherwise unavailable, the identifying timestamp associated with an identifying code obtained from a media signal;
- determine, by executing an instruction with the processor, an approximate time from the identifying timestamp;
- determine, by executing an instruction with the processor, a time range based on the approximate time;
- and
- identify, by executing an instruction with the processor, entries of a look-up table for inclusion in a partition of the look-up table, the entries including timestamps in the time range;
- construct, by executing an instruction with the processor, based on the entries, the partition of the look-up table including respective reference signatures;
- compare, with the processor, a signature extracted from the media signal to the reference signatures in the partition of the look-up table;
- and
- identify, by executing an instruction with the processor, media associated with the media signal based on the comparison.
6 more elements
A non-transitory computer readable medium comprising instructions, which, when executed cause a machine to at least:
- determine a portion of an identifying code from a media signal, the portion of the identifying code including an identifying timestamp that is unreadable or otherwise unavailable;
- determine an approximate timestamp from the identifying timestamp;
- determine a time range based on the approximate timestamp;
- and
- identify entries of a look-up table for inclusion in a partition of the look-up table, the entries including timestamps in the time range, the partition of the look-up table including reference signatures associated with the portion of the identifying code;
- and
- identify the media signal by comparing a signature extracted from the media signal to reference signatures in the partition of the look-up table.
4 more elements
Dependencies are inferred from the claim text.