Patent ID: 11929018
Assignee: GOOGLE LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A system comprising:
a frame generation subsystem configured to render a sequence of frames; and
a display control subsystem coupled to the frame generation subsystem and coupleable to a display panel, the display control subsystem configured to:
provide a brightness control signal configured to control a brightness of frames displayed at the display panel via pulse width modulation (PWM) of the brightness control signal;
measure a frame start delay associated with a deviation in a duty cycle of a first PWM period of the brightness control signal relative to a default duty cycle resulting from a delay in rendering of a frame, wherein the frame start delay comprises a duration by which the first PWM period is extended compared to a duration of a default PWM period having the default duty cycle; and
adjust a duty cycle of at least a second PWM period following the first PWM period to compensate for the measured frame start delay.