Patent ID: 11863820
Assignee: THE NIELSEN COMPANY (US), LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A device meter comprising:
a sensor to sense an output of a media device;
an interface to communicate with a data processor;
at least one processor;
memory having stored therein computer readable instructions that, upon execution by the at least one processor, cause the device meter to:
generate media signatures of a first type to monitor media presented by the media device, the media signature of the first type generated from a sensed signal obtained by the sensor;
report, to the data processor via the interface, the media signatures of the first type;
receive, from the data processor via the interface, an indication that the media presented by the media device has been identified based on the reported media signatures of the first type;
generate media signatures of a second type, different from the first type, from the sensed signal to continue monitoring the media presented by the media device after receipt of the indication;
detect a change in a source of the media presented by the media device; and
in response to detection of the change in the source of the media presented by the media device, revert to generation of the media signatures of the first type to monitor the media presented by the media device.