(19)

(11)

EP 4 244 648 A2

(12)

(88) Date of publication A3: 23.06.2022 (43) Date of publication: 20.09.2023 Bulletin 2023/38 (21) Application number: 21893031.1 (22) Date of filing: 16.11.2021

(51) International Patent Classification (IPC):  G01S 7/48(2006.01) G01S 13/931(2020.01) G01S 17/89(2020.01) G01S 17/931(2020.01) G01S 13/93(2020.01) G01S 17/88(2006.01) G01S 17/93(2020.01) (52) Cooperative Patent Classification (CPC): G01S 13/931; G01S 17/931; G01S 17/87; G01S 2013/93273; G01S 2013/93272; G01S 2013/9324; G01S 2013/93185; G01S 2013/9318; G01S 2013/93271; G01S 2013/9315; G01S 2013/9323; G01S 2013/93274; G01S 2013/9319; G01S 13/86; G01S 15/931 (86) International application number: PCT/US2021/059547 (87) International publication number: WO 2022/104276 (19.05.2022 Gazette 2022/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 16.11.2020 US 202063114237 P (71) Applicant: Isee, Inc. Cambridge, MA 02139 (US)	(72) Inventors: MOORE, Frederick, M. Cambridge, MA 02139 (US) ZHAO, Yibiao Cambridge, MA 02139 (US) ARORA, Ripudaman, Singh Cambridge, MA 02139 (US) HUANG, Hung-Jui Cambridge, MA 02139 (US) (74) Representative: CSY Herts  Helios Court 1 Bishop Square Hatfield, Hertfordshire AL10 9NE Hatfield, Hertfordshire AL10 9NE (GB)