Methods and apparatus to measure exposure to broadcast signals having embedded data
Example methods and apparatus to measure exposure to broadcast signals having embedded data are disclosed. An example broadcast signal exposure meter includes a first decoder to obtain an identifier of a broadcast station from an audio signal output by an end user broadcast receiver, a radio to tune to a broadcast signal from the broadcast station associated with the identifier of the broadcast station, a second decoder to obtain embedded data from the broadcast signal, the embedded data representing media contained in the broadcast signal, and an interface to provide the embedded data to a server, the server to determine audience measurement information for the media based on the provided embedded data.
1. A meter comprising:
memory; and
at least one processor to execute computer readable instructions to:
decode a watermark from an audio signal to obtain an identifier of a broadcast station;
query a data structure based on (i) the identifier of the broadcast station obtained from the watermark and (ii) a location, the query to obtain a transmission frequency of a broadcast signal corresponding to the audio signal;
tune a radio to the transmission frequency of the broadcast signal;
decode data from the broadcast signal tuned by the radio; and
report the decoded data to at least one of a remote server or an external device.
2. The meter of claim 1 , wherein the data structure is a lookup table.
3. The meter of claim 1 , wherein the at least one processor is to obtain the location from the watermark.
4. The meter of claim 1 , further including a location detector, wherein the at least one processor is to obtain the location from the location detector.
5. The meter of claim 1 , wherein the decoded data includes media identification information that was embedded in the broadcast signal based on a protocol.
6. The meter of claim 1 , further including a user interface to accept a user input representative of a user preference, and the at least one processor is to associate the user preference with the decoded data.
7. The meter of claim 6 , wherein the at least one processor is to report the user preference with the decoded data to the at least one of a remote server or an external device.
8. At least one non-transitory computer-readable medium comprising computer readable instructions that, when executed, cause at least one processor to at least:
decode a watermark from an audio signal to obtain an identifier of a broadcast station;
query a data structure based on (i) the identifier of the broadcast station obtained from the watermark and (ii) a location, the query to obtain a transmission frequency of a broadcast signal corresponding to the audio signal;
tune a radio to the transmission frequency of the broadcast signal;
decode data from the broadcast signal tuned by the radio; and
report the decoded data to at least one of a remote server or an external device.
9. The at least one non-transitory computer-readable medium of claim 8 , wherein the data structure is a lookup table.
10. The at least one non-transitory computer-readable medium of claim 8 , wherein the instructions cause the at least one processor to obtain the location from the watermark.
11. The at least one non-transitory computer-readable medium of claim 8 , wherein the instructions cause the at least one processor to obtain the location from a location detector.
12. The at least one non-transitory computer-readable medium of claim 8 , wherein the decoded data includes media identification information that was embedded in the broadcast signal based on a protocol.
13. The at least one non-transitory computer-readable medium of claim 8 , wherein the instructions cause the at least one processor to:
implement a user interface to accept a user input representative of a user preference; and
associate the user preference with the decoded data.
14. The at least one non-transitory computer-readable medium of claim 13 , wherein the instructions cause the at least one processor to report the user preference with the decoded data to the at least one of a remote server or an external device.
15. A method comprising:
decoding a watermark from an audio signal to obtain an identifier of a broadcast station;
querying, by executing an instruction with at least one processor, a data structure based on (i) the identifier of the broadcast station obtained from the watermark and (ii) a location, the query to obtain a transmission frequency of a broadcast signal corresponding to the audio signal;
tuning a radio to the transmission frequency of the broadcast signal;
decoding, by executing an instruction with the at least one processor, data from the broadcast signal tuned by the radio; and
reporting, by executing an instruction with the at least one processor, the decoded data to at least one of a remote server or an external device.
16. The method of claim 15 , wherein the data structure is a lookup table.
17. The method of claim 15 , further including obtaining the location from the watermark.
18. The method of claim 15 , further including obtaining the location from a location detector.
19. The method of claim 15 , further including:
obtaining, via a user interface, a user input representative of a user preference; and
associating the user preference with the decoded data.
20. The method of claim 19 , wherein the reporting includes reporting the decoded data to at least one of a remote server or an external device.