Patent ID: 11936947
Assignee: ROVI GUIDES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. The method of claim 8, wherein the detecting the at least one change via the device comprises:
receiving video data capturing user activities at the device during presentation of an event in the media asset;
determining whether the user activities comprise at least one of a user movement and a user vocal reaction;
in response to determining the user activities include the user movement:
capturing imagery of the user movement;
generating, from the imagery, movement data representing a pattern of the user movement;
transmitting a query based on the movement data to a movement pattern database; and
in response to the query, obtaining a movement descriptor corresponding to the movement data; and
in response to determining the user activities include the user vocal reaction:
obtaining audio characteristics of the user vocal reaction;
determining a sentiment descriptor based on the audio characteristics of the user vocal reaction; and
performing speech recognition analysis to extract one or more keywords from the user vocal reaction; and
adding the movement descriptor, the sentiment descriptor, and the extracted one or more keywords to a parameter set related to the physiological state.