US 11,698,676 B2
Method and electronic device for eye-tracking
Gavril Nikolaevich Vostrikov, Moscow region (RU); Nikolay Victorovich Muravev, Moscow region (RU); Dmitriy Evgenyevich Piskunov, Moscow region (RU); and Mikhail Vyacheslavovich Popov, Moscow region (RU)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Aug. 18, 2020, as Appl. No. 16/996,203.
Claims priority of application No. RU2019126697 (RU), filed on Aug. 23, 2019; and application No. 10-2020-0060900 (KR), filed on May 21, 2020.
Prior Publication US 2021/0055792 A1, Feb. 25, 2021
Int. Cl. G06F 3/01 (2006.01); G01B 11/26 (2006.01); G06V 40/18 (2022.01)
CPC G06F 3/013 (2013.01) [G01B 11/26 (2013.01); G06F 3/011 (2013.01); G06V 40/18 (2022.01)] 15 Claims
OG exemplary drawing
 
1. An eye-tracking electronic device comprising:
a scanner;
at least two photodetectors configured to generate electric pulses when a scanning line reflected from a cornea is incident thereon; and
at least one processor configured to:
generate at least one scanning line through the scanner,
radiate the at least one scanning line to the cornea, and
determine a direction of a gaze based on time information when the at least two photodetectors generate the electrical pulses,
wherein the scanner comprises:
a light source configured to generate the at least one scanning line;
an optical element configured to convert the at least one scanning line to form a scanning area of a linear shape, having a length from an upper eyelid to a lower eyelid, perpendicular to a scanning direction; and
a single-axis scanner mirror configured to rotate relative to one axis to move the scanning area.