Digital radio channel error detection
A method includes determining, at a device, that transmission data indicates that first data was transmitted via a digital radio channel. The method also includes determining, at the device, that reception data indicates that second data was received via the digital radio channel. The first data has a first size that is less than a second size of the second data. The method also includes determining, at the device, whether an error occurred in transmission of the first data based on determining whether each of a plurality of portions of the first data is included at least once in the second data. Other aspects are also disclosed.
1. A method comprising:
determining, at a device, that transmission data indicates that first data was transmitted via a digital radio channel, the first data transmitted concurrently with transmission of an analog signal;
determining, at the device, that reception data indicates that second data was received via the digital radio channel, wherein the first data has a first size that is less than a second size of the second data; and
determining, at the device, that an error occurred in transmission of the first data based on a comparison of adjacent portions of the first data to non-adjacent portions of the second data; and
in response to determining that the error occurred in transmission of the first data:
initiating display of a default image concurrently with output of an audio signal, the audio signal corresponding to the analog signal; and
initiating retransmission of the first data to cause second particular data to be output subsequent to the output of the default image, wherein the second particular data corresponds to the retransmitted first data.
2. The method of claim 1 , wherein the digital radio channel corresponds to a particular frequency modulation (FM) frequency or a particular amplitude modulation (AM) frequency.
3. The method of claim 1 , wherein the transmission data indicates that the first data was transmitted during a radio broadcast period, and wherein the reception data indicates that the second data was received during the radio broadcast period.
4. The method of claim 1 , wherein the first data is retransmitted during a second radio broadcast period, wherein the second particular data is received during the second radio broadcast period, and wherein the first data includes at least one of traffic data, weather data, image data, album art data, or station logo data.
5. The method of claim 1 , wherein the first data was transmitted via the digital radio channel using an in-band on-channel (IBOC) signal.
6. The method of claim 1 , wherein the first data was transmitted multiple times via the digital radio channel during a radio broadcast period.
7. The method of claim 1 , further comprising receiving, from a provider device, the first data and the transmission data, the transmission data indicating that the provider device initiated transmission of the first data via the digital radio channel during a radio broadcast period.
8. The method of claim 1 , further comprising receiving, from a receiver device, the second data and the reception data, the reception data indicating that the receiver device received the second data via the digital radio channel during a radio broadcast period.
9. The method of claim 1 , wherein the audio signal is output during a time period, wherein the default image is output during a first portion of the time period, and wherein retransmission of the first data causes the second particular data to be output during a second portion of the time period.
10. The method of claim 1 , further comprising:
comparing a first portion of the first data to a first particular portion of the second data;
in response to determining that the first portion of the first data matches the first particular portion of the second data, comparing a second portion of the first data to a second particular portion of the second data; and
in response to determining that the first portion of the first data does not match the first particular portion of the second data, comparing the first portion of the first data to the second particular portion of the second data.
11. The method of claim 10 , wherein the first portion of the first data is adjacent to the second portion of the first data, and wherein the first particular portion of the second data is adjacent to the second particular portion of the second data.
12. A system comprising:
a processor configured to:
determine that transmission data indicates that first data was transmitted via a digital radio channel, the first data transmitted concurrently with transmission of an analog signal;
determine that reception data indicates that second data was received via the digital radio channel;
determine that an error occurred in transmission of the first data based on a comparison of adjacent portions of the first data to non-adjacent portions of the second data; and
in response to determining that the error occurred in transmission of the first data, initiate retransmission of the first data to cause second particular data to be output concurrently with output of an audio signal, wherein the second particular data corresponds to the retransmitted first data, and wherein the audio signal corresponds to the analog signal.
13. The system of claim 12 , wherein the first data has a first size that is less than a second size of the second data.
14. The system of claim 12 , wherein the processor is further configured to generate an alert message in response to determining that the error occurred in transmission of the first data.
15. The system of claim 14 , wherein the processor is further configured to store the alert message in a memory, provide the alert message to a display, provide the alert message to another device, or a combination thereof.
16. The system of claim 12 , wherein the processor is further configured, in response to determining that the error occurred in transmission of the first data, to initiate display of a default image prior to output of the second particular data.
17. The system of claim 12 , further comprising a receiver configured to receive the first data and the transmission data from a provider device, the transmission data indicating that the provider device initiated transmission of the first data via the digital radio channel during a radio broadcast period.
18. The system of claim 12 , further comprising a receiver configured to receive the second data and the reception data from a receiver device, the reception data indicating that the receiver device received the second data via the digital radio channel during a radio broadcast period.
19. A computer-readable storage device storing instructions that, when executed by a processor, cause the processor to perform operations comprising:
determining that transmission data indicates that first data was transmitted via a digital radio channel, the first data transmitted concurrently with transmission of an analog signal;
determining that reception data indicates that second data was received via the digital radio channel, wherein the first data has a first size that is less than a second size of the second data;
determining that an error occurred in transmission of the first data based on determining whether each of a plurality of portions of the first data is included at least once in the second data; and
in response to determining that the error occurred in transmission of the first data, initiating retransmission of the first data to cause second particular data to be output concurrently with output of an audio signal, wherein the second particular data corresponds to the retransmitted first data, and wherein the audio signal corresponds to the analog signal.
20. The computer-readable storage device of claim 19 , wherein the digital radio channel corresponds to a particular frequency modulation (FM) frequency or a particular analog modulation (AM) frequency.