IP Library › Granted Patent US 12,301,902
Granted Patent B2
US 12,301,902 · App. 18/365,037 · Granted May 13, 2025

Signature matching with meter data aggregation for media identification

Inventors: Daniel Nelson (Tampa, FL); Raghuram Ranganathan (Tampa, FL)
Assignee: The Nielsen Company (US), LLC
H04N21/2407H04N21/23418H04N21/2353H04N21/835
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Quick Facts
Patent No.
US 12,301,902
App. No.
18/365,037
Granted
May 13, 2025
Kind
B2
Abstract

Example apparatus disclosed herein to implement signature matching with meter data aggregation for use in media identification applications include a match job aggregator to aggregate batches of meter data from a meter to form aggregated meter data associated with the meter, and a hash matcher to identify a valid hash key match between meter hash keys generated from meter signatures in the aggregated meter data and reference hash keys corresponding to a collection of media assets. Disclosed example apparatus also include a signature matcher to align, based on the valid hash key match, a sequence of reference signatures corresponding to a first media asset associated with the valid hash key match and a corresponding sequence of the meter signatures, and compare the sequence of reference signatures and the corresponding sequence of meter signatures to identify media represented by at least a portion of the sequence of the meter signatures.

Claims (60)

1. A media identification system comprising:

a processor; and

at least one memory storing instructions that, when executed by the processor, cause the media identification system to perform operations comprising:

aggregating batches of meter data from a meter to form aggregated meter data associated with the meter, the batches of meter data corresponding to respective reporting intervals having a first duration, the aggregated meter data corresponding to a monitoring interval having a second duration;

generating meter hash keys from meter signatures in the aggregated meter data;

identifying a valid hash key match between the meter hash keys and reference hash keys corresponding to a collection of media assets; and

aligning, based on the valid hash key match, (i) a sequence of reference signatures corresponding to a duration of a first media asset associated with the valid hash key match with (ii) a corresponding sequence of the meter signatures in the aggregated meter data.

2. The system of claim 1 , wherein the operations further comprise:

providing for output (i) an identifier of media represented by the at least a portion of the sequence of the meter signatures, and (ii) a third duration corresponding to a duration represented by the at least the portion of the sequence of the meter signatures, wherein the identifier and the third duration are provided for output to an application that is to perform an operation based on the identifier and the third duration.

3. The system of claim 1 , wherein the second duration corresponds to a twenty-four period, and the first duration corresponds to a fraction of the twenty-four period.

4. The system of claim 3 , wherein the sequence of reference signatures corresponds to an entirety of the first media asset.

5. The system of claim 1 , wherein the operations further comprise:

identifying, for a first one of the meter hash keys, a set of reference hash keys that match the first one of the meter hash keys;

storing ones of the set of reference hash keys in respective data structures corresponding to media assets represented by the ones of the set of reference hash keys, the media assets including the first media asset, a first one of the data structures corresponding to the first media asset, the first one of the data structures to include a sequence of reference hash keys that match a corresponding sequence of the meter hash keys; and

determining that the first one of the sequence of reference hash keys included in the first one of the data structures corresponds to the valid hash key match when the sequence of reference hash keys and the corresponding sequence of the meter hash keys satisfy one or more validation criteria.

6. The system of claim 5 , wherein aligning the sequence of reference signatures with the corresponding sequence of the meter signatures comprises:

identifying a first number of signatures from (i) an initial reference signature of the sequence of reference signatures corresponding to the duration of the first media asset to (ii) a reference signature in the sequence of reference signatures that corresponds to an initial reference hash key in the sequence of reference hash keys corresponding to the valid hash key match;

identifying an initial meter signature of the sequence of meter signatures to be a first meter signature in the aggregated meter data that precedes, by the first number of signatures, a second meter signature in the aggregated meter data that corresponds to an initial meter hash key in the sequence of the meter hash keys corresponding to the valid hash key match; and

determining the sequence of meter hash keys to begin with the initial meter signature and include a same second number of signatures as the sequence of reference signatures.

7. A non-transitory computer readable storage medium comprising instructions that, when executed, cause a processor to perform operations comprising:

aggregating batches of meter data from a meter to form aggregated meter data associated with the meter, the batches of meter data corresponding to respective reporting intervals having a first duration, the aggregated meter data corresponding to a monitoring interval having a second duration;

generating meter hash keys from meter signatures in the aggregated meter data;

identifying a valid hash key match between the meter hash keys and reference hash keys corresponding to a collection of media assets;

aligning, based on the valid hash key match, (i) a sequence of reference signatures corresponding to a duration of a first media asset associated with the valid hash key match with (ii) a corresponding sequence of the meter signatures in the aggregated meter data, and

generating an output that characterizes media represented by at least a portion of the sequence of the meter signatures.

8. The non-transitory computer readable storage medium of claim 7 , wherein the operations further comprise:

providing for output (i) an identifier of media represented by the at least the portion of the sequence of the meter signatures, and (ii) a third duration corresponding to a duration represented by the at least the portion of the sequence of the meter signatures, wherein the identifier and the third duration are provided for output to an application that is to perform an operation based on the identifier and the third duration.

9. The non-transitory computer readable storage medium of claim 7 , wherein the second duration corresponds to a twenty-four period, and the first duration corresponds to a fraction of the twenty-four period.

10. The non-transitory computer readable storage medium of claim 9 , wherein the sequence of reference signatures corresponds to an entirety of the first media asset.

11. The non-transitory computer readable storage medium of claim 7 , wherein the operations further comprise:

identifying, for a first one of the meter hash keys, a set of reference hash keys that match the first one of the meter hash keys;

storing ones of the set of reference hash keys in respective data structures corresponding to media assets represented by the ones of the set of reference hash keys, the media assets including the first media asset, a first one of the data structures corresponding to the first media asset, the first one of the data structures to include a sequence of reference hash keys that match a corresponding sequence of the meter hash keys; and

determining that the first one of the sequence of reference hash keys included in the first one of the data structures corresponds to the valid hash key match when the sequence of reference hash keys and the corresponding sequence of the meter hash keys satisfy one or more validation criteria.

12. The non-transitory computer readable storage medium of claim 11 , wherein aligning the sequence of reference signatures with the corresponding sequence of the meter signatures comprises:

identifying a first number of signatures from (i) an initial reference signature of the sequence of reference signatures corresponding to the duration of the first media asset to (ii) a reference signature in the sequence of reference signatures that corresponds to an initial reference hash key in the sequence of reference hash keys corresponding to the valid hash key match;

identifying an initial meter signature of the sequence of meter signatures to be a first meter signature in the aggregated meter data that precedes, by the first number of signatures, a second meter signature in the aggregated meter data that corresponds to an initial meter hash key in the sequence of the meter hash keys corresponding to the valid hash key match; and

determining the sequence of meter hash keys to begin with the initial meter signature and include a same second number of signatures as the sequence of reference signatures.

13. A media identification method comprising:

aggregating batches of meter data from a meter to form aggregated meter data associated with the meter, the batches of meter data corresponding to respective reporting intervals having a first duration, the aggregated meter data corresponding to a monitoring interval having a second duration;

generating meter hash keys from meter signatures in the aggregated meter data;

identifying, by executing an instruction with a processor, a valid hash key match between the meter hash keys and reference hash keys corresponding to a collection of media assets;

aligning, based on the valid hash key match, (i) a sequence of reference signatures corresponding to a duration of a first media asset associated with the valid hash key match with (ii) a corresponding sequence of the meter signatures in the aggregated meter data; and

generating an output that characterizes media represented by at least a portion of the sequence of the meter signatures.

14. The method of claim 13 , further including:

providing for output (i) an identifier of media represented by the at least the portion of the sequence of the meter signatures, and (ii) a third duration corresponding to a duration represented by the at least the portion of the sequence of the meter signatures, wherein the identifier and the third duration are provided for output to an application that is to perform an operation based on the identifier and the third duration.

15. The method of claim 13 , wherein the second duration corresponds to a twenty-four period, the first duration corresponds to a fraction of the twenty-four period, and the sequence of reference signatures corresponds to an entirety of the first media asset.

16. The method of claim 13 , further including:

identifying, for a first one of the meter hash keys, a set of reference hash keys that match the first one of the meter hash keys;

storing ones of the set of reference hash keys in respective data structures corresponding to media assets represented by the ones of the set of reference hash keys, the media assets including the first media asset, a first one of the data structures corresponding to the first media asset, the first one of the data structures to include a sequence of reference hash keys that match a corresponding sequence of the meter hash keys; and

determining that the first one of the sequence of reference hash keys included in the first one of the data structures corresponds to the valid hash key match when the sequence of reference hash keys and the corresponding sequence of the meter hash keys satisfy one or more validation criteria.

17. The method of claim 16 , wherein the aligning of the sequence of reference signatures with the corresponding sequence of the meter signatures includes:

identifying a first number of signatures from (i) an initial reference signature of the sequence of reference signatures corresponding to the duration of the first media asset to (ii) a reference signature in the sequence of reference signatures that corresponds to an initial reference hash key in the sequence of reference hash keys corresponding to the valid hash key match;

identifying an initial meter signature of the sequence of meter signatures to be a first meter signature in the aggregated meter data that precedes, by the first number of signatures, a second meter signature in the aggregated meter data that corresponds to an initial meter hash key in the sequence of the meter hash keys corresponding to the valid hash key match; and

determining the sequence of meter hash keys to begin with the initial meter signature and include a same second number of signatures as the sequence of reference signatures.

18. The method of claim 13 , further including:

based on a comparison of the sequence of reference signatures and the corresponding sequence of meter signatures, credit media represented by at least a portion of the sequence of the meter signatures.

19. The system of claim 1 , wherein the operations further comprise:

based on a comparison of the sequence of reference signatures and the corresponding sequence of meter signatures, credit media represented by at least a portion of the sequence of the meter signatures.

20. The non-transitory computer readable storage medium of claim 7 , wherein the operations further comprise:

based on a comparison of the sequence of reference signatures and the corresponding sequence of meter signatures, credit media represented by at least a portion of the sequence of the meter signatures.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 18, 2024
From: NELSON, DANIEL J.; RANGANATHAN, RAGHURAM
To: THE NIELSEN COMPANY (US), LLC
Reel/Frame 068627/0916 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 31, 2023
From: NELSON, DANIEL; RANGANATHAN, RAGHURAM
To: THE NIELSEN COMPANY (US), LLC
Reel/Frame 064792/0279 →
Continuity (3)
Continuation 17670222 · Feb 11, 2022
Continuation 16832681 · Mar 27, 2020
Related Publication 20240073464A1 · Feb 29, 2024
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