Patent ID: 11949981
Assignee: CANON KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 14:
15. A control method of a display device, comprising:
acquiring time series images;
processing an acquired image;
performing control so that a processed image is displayed on a display;
detecting a closed state of an eyelid of a user;
starting power saving processing to reduce power consumption of the processing or the display, in response to the detection of the closed state of the eyelid by detecting processing;
instructing restart of processing that was being performed before the power saving processing, in the processing or the display, at a timing when a specific predetermined time period has elapsed since the time of the detection of the closed state of the eyelid; and
measuring a blinking time duration of the user for each of a plurality of types of blinking;
determining a type of blinking from among the plurality of types of blinking, based on whether a sudden change in brightness or sound is detected in an immediately preceding or neighboring frame of a frame where the closed state of the eyelid is detected, and
using a blinking time duration of the user for calculating the specific predetermined time period, wherein the blinking time duration of the user is based on the blinking time duration corresponding to the determined type of the blinking.