Small changes in a broadcast version of a base media item can be identified by performing a multi-level comparison of digital fingerprints. A fingerprint of a base media item is compared to a fingerprint of a media broadcast to determine whether a media item embedded in a broadcast is likely, to a first level of certainty, to be the base media item. A second, more stringent, match between the fingerprint of the base media item and loosely matched items can be used to identify potentially-altered versions of the base media item. Potentially-altered versions can be compared against each other, and resulting matches are flagged as altered base media items, which can be fingerprinted and tested against broadcast fingerprints in the same manner as the base media item. Comparisons are made in parallel between two fingerprints to distinguish between a known base media item and unknown altered versions of the known base media item without prior storage of the unknown altered versions of the known base media item.

In one aspect, an example method includes (i) while a media playback device of a vehicle is playing back content received on a first channel, generating, by the media playback device, a query fingerprint using second content received on a second channel; (ii) sending, by the media playback device, the query fingerprint to a server that maintains a reference database containing a plurality of reference fingerprints; (iii) receiving, by the media playback device from the server, identifying information corresponding to a reference fingerprint of the plurality of reference fingerprints that matches the query fingerprint; and (iv) while the media playback device is playing back the first content received on the first channel, providing, by the media playback device for display, at least a portion of the identifying information.

An automotive radio receiver includes an over-the-air radio tuner and a network interface. When a broadcast received at the radio receiver, it includes embedded information that can be used to identify the radio station providing the broadcast. The radio receiver uses the embedded information to identify a streaming station that corresponds to the broadcast station. The radio receiver transmits information associated with the streaming station to a web service, which returns an address at which the radio receiver can access the streaming station. The address of the streaming station is stored in a memory accessible to the radio receiver for later use. The next time the radio receiver is tuned to the same broadcast station, the radio receiver instead connects to the streaming station at the stored address.

An apparatus for transmitting broadcasting signal using transmitter identification scaled by 4-bit injection level code and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter, the transmitter identification signal scaled by an injection level code; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.

An apparatus for transmitting broadcasting signal using transmitter identification scaled by 4-bit injection level code and method using the same are disclosed. An apparatus for transmitting broadcasting signal according to an embodiment of the present invention includes a waveform generator configured to generate a host broadcasting signal; a transmitter identification signal generator configured to generate a transmitter identification signal for identifying a transmitter, the transmitter identification signal scaled by an injection level code; and a combiner configured to inject the transmitter identification signal into the host broadcasting signal in a time domain so that the transmitter identification signal is transmitted synchronously with the host broadcasting signal.

A hearing instrument includes: a radio for reception of a broadcasted message; an authenticator configured for authentication of a transmitter of the broadcasted message; and a receiver configured for converting the broadcasted message into an acoustic signal for transmission towards an eardrum of a user of the hearing instrument upon successful authentication of the transmitter of the broadcasted message.

A hearing instrument includes: a radio for reception of a broadcasted message; an authenticator configured for authentication of a transmitter of the broadcasted message; and a receiver configured for converting the broadcasted message into an acoustic signal for transmission towards an eardrum of a user of the hearing instrument upon successful authentication of the transmitter of the broadcasted message.

An electronic apparatus according to an embodiment includes a communicator, and a processor configured to, based on multimedia data being received from an external device through the communicator, obtain word-related information during a time period from audio data included in the multimedia data, control the communicator to transmit identification information including the word-related information and time information corresponding to the time period to a server, and receive broadcast provider information corresponding to the transmitted identification information from the server through the communicator.

The present technology relates to a receiving apparatus, a receiving method, a transmission apparatus, and a transmission method that enable a service to be reliably identified. Provided is a receiving apparatus including a receiving unit configured to receive a broadcast wave of digital broadcasting employing an IP transmission scheme, and a control unit configured to identify a specific service provision source according to a combination of an original network ID allocated as a value unique to each broadcasting operator and having a same value succeeded in retransmission of a specific service, a stream ID allocated as a value unique to each stream, and a service ID allocated as a value unique to each service that is included in a control signal transmitted via the broadcast wave, and to control a function of each unit for performing predetermined processing related to the specific service. The present technology can be applied to, for example, a television receiver.

The present technology relates to a receiving apparatus, a receiving method, a transmission apparatus, and a transmission method that enable a service to be reliably identified. Provided is a receiving apparatus including a receiving unit configured to receive a broadcast wave of digital broadcasting employing an IP transmission scheme, and a control unit configured to identify a specific service provision source according to a combination of an original network ID allocated as a value unique to each broadcasting operator and having a same value succeeded in retransmission of a specific service, a stream ID allocated as a value unique to each stream, and a service ID allocated as a value unique to each service that is included in a control signal transmitted via the broadcast wave, and to control a function of each unit for performing predetermined processing related to the specific service. The present technology can be applied to, for example, a television receiver.