Patent ID: 11907287
Assignee: THE NIELSEN COMPANY (US), LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. An apparatus to perform source classification, the apparatus comprising:
at least one memory;
instructions in the apparatus; and
processor circuitry to execute the instructions to:
intercept high definition multimedia interface (HDMI) data of a media stream output from a monitored HDMI port of a media device;
identify HDMI metadata;
parse the HDMI metadata;
determine that first media encoding parameters contained in the HDMI metadata correspond to a first unique encoding class (UEC) of a set of defined UECs, different ones of the set of defined UECs corresponding to different possible combinations of media encoding parameters capable of being included in the HDMI metadata; and
identify a media source corresponding to media that is output based on one or more possible media sources corresponding to the first UEC.