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EP 4 268 452 A1

(12)

(43) Date of publication: 01.11.2023 Bulletin 2023/44 (21) Application number: 21844157.4 (22) Date of filing: 21.12.2021

(51) International Patent Classification (IPC):  H04N 19/105(2014.01) H04N 19/176(2014.01) H04N 19/577(2014.01) H04N 19/159(2014.01) H04N 19/513(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/105; H04N 19/159; H04N 19/176; H04N 19/513; H04N 19/577 (86) International application number: PCT/US2021/064600 (87) International publication number: WO 2022/140377 (30.06.2022 Gazette 2022/26)

(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: 22.12.2020 US 202063129190 P 20.12.2021 US 202117645233 (71) Applicant: QUALCOMM INCORPORATED San Diego, California 92121-1714 (US)

(72) Inventors: ZHANG, Zhi San Diego, California 92121-1714 (US) HUANG, Han San Diego, California 92121-1714 (US) CHEN, Chun-Chi San Diego, California 92121-1714 (US) ZHANG, Yan San Diego, California 92121-1714 (US) SEREGIN, Vadim San Diego, California 92121-1714 (US) KARCZEWICZ, Marta San Diego, California 92121-1714 (US) (74) Representative: Loveless, Ian Mark  Reddie & Grose LLP The White Chapel Building 10 Whitechapel High Street London E1 8QS London E1 8QS (GB)