US 12,436,612 B2
Dynamic IR emission control for fast recognition of eye tracking system
Liang Yuan, Peachtree City, GA (US)
Assigned to Panasonic Automotive Systems America, LLC, Peachtree City, GA (US)
Filed by Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America, Peachtree City, GA (US)
Filed on Oct. 10, 2024, as Appl. No. 18/911,770.
Application 18/911,770 is a continuation of application No. 18/141,574, filed on May 1, 2023, granted, now 12,141,348.
Application 18/141,574 is a continuation of application No. 17/682,879, filed on Feb. 28, 2022, granted, now 11,675,433, issued on Jun. 13, 2023.
Claims priority of provisional application 63/158,308, filed on Mar. 8, 2021.
Prior Publication US 2025/0036198 A1, Jan. 30, 2025
Int. Cl. G09G 5/00 (2006.01); G02B 27/01 (2006.01); G06F 3/01 (2006.01); H04N 23/20 (2023.01); B60K 35/00 (2006.01); B60K 35/23 (2024.01); B60K 35/65 (2024.01)
CPC G06F 3/013 (2013.01) [G02B 27/0101 (2013.01); G02B 27/0179 (2013.01); H04N 23/20 (2023.01); B60K 35/00 (2013.01); B60K 35/23 (2024.01); B60K 35/654 (2024.01); B60K 2360/21 (2024.01); B60K 2360/23 (2024.01); G02B 2027/0138 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0187 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An eye tracking arrangement for a motor vehicle, the arrangement comprising:
at least one infrared emitter positioned to transmit infrared energy toward a human driver of the motor vehicle;
an infrared camera positioned to capture infrared images based on the transmitted infrared energy reflected off of the human driver and received by the infrared camera; and
an electronic processor communicatively coupled to the at least one infrared emitter and to the infrared camera, the electronic processor being configured to:
perform eye tracking based on the captured infrared images; and
cause the infrared energy to be transmitted at an initial power level during a beginning stage of the eye tracking and at a later power level immediately after the beginning stage of the eye tracking, the initial power level being greater than the later power level.