New patents are issued by the USPTO on Tuesdays. Both of today's Spotlight Patents concern aspects of audio fingerprinting. Assigned to Facebook, the first patent addresses techniques for broadcast content view analysis based on ambient audio recording. Assigned to BARCO N.V. (BE), the second patent addresses techniques for ad hoc one-time pairing of remote devices using online audio fingerprinting.
10,075,767, "Broadcast content view analysis based on ambient audio recording," assigned to Facebook.
An online system analyzes broadcast content viewed by individuals in a household. Each individual in the household is associated with a client device on which a software application module is executed. When the software application module detects one or more broadcasting signals of a content item broadcasted to the household, the software application module records the ambient audio, including audio from the broadcasting device. The software application module sends an identifier of the individual associated with the client device, an ambient audio fingerprint derived from the recorded ambient audio, and time information for the recorded ambient audio to the online system. The online system, based on the ambient audio data, identifies the corresponding individual and content item and logs an impression for the content item upon determination that there was an impression of the identified content item by the identified individual.
10,074,374, "Ad hoc one-time pairing of remote devices using online audio fingerprinting," assigned to BARCO N.V. (BE).
Participants of a phone conference can share electronic data without a need to exchange passwords to link two devices nor to login to access data. The invention is resistant to eavesdropping, and provides methods, devices and systems to easily and automatically find, identify and authenticate participants on a computer network for electronic data exchange. Samples of the audio are used to create a stream of audio fingerprints which are sent to a matching service. This matching service finds the fingerprints that correspond to the same conversation, and exchanges identifiers. When instructed by the user, the device can setup a secure data connection.