(19)
(11) EP 4 817 283 A1

(12)

(43) Date of publication:
07.10.2026 Bulletin 2026/41

(21) Application number: 24898399.1

(22) Date of filing: 18.04.2024
(51) International Patent Classification (IPC): 
H04N 19/169(2014.01)
H04N 19/119(2014.01)
H04N 19/12(2014.01)
H04N 19/70(2014.01)
H04N 19/186(2014.01)
H04N 19/44(2014.01)
(52) Cooperative Patent Classification (CPC):
H04N 19/186; H04N 19/176; H04N 19/11; H04N 19/107; H04N 19/105; H04N 19/70; H04N 19/139; H04N 19/593; H04N 19/119; H04N 19/96; H04N 19/159
(86) International application number:
PCT/US2024/025263
(87) International publication number:
WO 2025/116955 (05.06.2025 Gazette 2025/23)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
GE KH MA MD TN

(30) Priority: 29.11.2023 US 202363604038 P
11.04.2024 US 202418633372

(71) Applicant: TENCENT AMERICA LLC
Palo Alto, CA 94306 (US)

(72) Inventors:
  • ZHAO, Liang
    Palo Alto, CA 94306 (US)
  • ZHAO, Xin
    Palo Alto, CA 94306 (US)
  • YE, Jing
    Palo Alto, CA 94306 (US)
  • GAO, Han
    Palo Alto, CA 94306 (US)
  • LIU, Shan
    Palo Alto, CA 94306 (US)

(74) Representative: Gunzelmann, Rainer 
Wuesthoff & Wuesthoff Patentanwälte und Rechtsanwalt PartG mbB Schweigerstraße 2
81541 München
81541 München (DE)

   


(54) SYSTEMS AND METHODS FOR CHROMA MODE CODING IN RECURSIVE INTRA/INTER REGION