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Extract from the Register of European Patents

EP About this file: EP4189956

EP4189956 - METHOD AND APPARATUS FOR HADAMARD TRANSFORM DOMAIN FILTERING OF THE VIDEO SIGNAL WITH VARIOUS BIT DEPTH [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  28.11.2025
Database last updated on 14.03.2026
FormerRequest for examination was made
Status updated on  05.05.2023
FormerThe international publication has been made
Status updated on  25.02.2022
Formerunknown
Status updated on  22.09.2021
Most recent event   Tooltip29.11.2025New entry: Despatch of examination report + time limit 
Applicant(s)For all designated states
Huawei Technologies Co., Ltd.
Huawei Administration Building
Bantian
Longgang District
Shenzhen, Guangdong 518129 / CN
[2023/23]
Inventor(s)01 / DAVLETSHINA, Kamilla Railevna
Shenzhen, Guangdong 518129 / CN
02 / IKONIN, Sergey Yurievich
Shenzhen, Guangdong 518129 / CN
03 / ALSHINA, Elena Alexandrovna
Shenzhen, Guangdong 518129 / CN
04 / CHERNYAK, Roman Igorevich
Shenzhen, Guangdong 518129 / CN
 [2023/23]
Representative(s)Grünecker Patent- und Rechtsanwälte PartG mbB
Leopoldstraße 4
80802 München / DE
[2023/23]
Application number, filing date21769824.018.08.2021
[2023/23]
WO2021RU50266
Priority number, dateWO2020RU0043918.08.2020         Original published format: PCT/RU2020/000439
[2023/23]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022039635
Date:24.02.2022
Language:EN
[2022/08]
Type: A1 Application with search report 
No.:EP4189956
Date:07.06.2023
Language:EN
The application published by WIPO in one of the EPO official languages on 24.02.2022 takes the place of the publication of the European patent application.
[2023/23]
Search report(s)International search report - published on:EP24.02.2022
ClassificationIPC:H04N19/117, H04N19/80, H04N19/82
[2023/23]
CPC:
H04N19/117 (EP); H04N19/80 (EP,US); H04N19/176 (US);
H04N19/182 (US); H04N19/60 (US); H04N19/82 (EP)
Designated contracting statesAL,   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 [2023/23]
TitleGerman:VERFAHREN UND VORRICHTUNG ZUR HADAMARD-TRANSFORMATIONSDOMÄNENFILTERUNG EINES VIDEOSIGNALS MIT VERSCHIEDENER BITTIEFE[2023/23]
English:METHOD AND APPARATUS FOR HADAMARD TRANSFORM DOMAIN FILTERING OF THE VIDEO SIGNAL WITH VARIOUS BIT DEPTH[2023/23]
French:PROCÉDÉ ET APPAREIL DE FILTRAGE DE DOMAINE DE TRANSFORMÉE DE HADAMARD DU SIGNAL VIDÉO AVEC DIVERSES PROFONDEURS BINAIRES[2023/23]
Entry into regional phase01.03.2023National basic fee paid 
01.03.2023Designation fee(s) paid 
01.03.2023Examination fee paid 
Examination procedure01.03.2023Amendment by applicant (claims and/or description)
01.03.2023Examination requested  [2023/23]
01.03.2023Date on which the examining division has become responsible
28.11.2025Despatch of a communication from the examining division (Time limit: M04)
Fees paidRenewal fee
30.08.2023Renewal fee patent year 03
02.09.2024Renewal fee patent year 04
01.09.2025Renewal fee patent year 05
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Cited inInternational search[X] WO2020055288  (HUAWEI TECH CO LTD et al.) [X] 1,14,18-22 * paragraph [0068] - paragraph [0078] * * paragraph [0163] * * paragraph [0104] - paragraph [0106] * * paragraph [0158] - paragraph [0163] *
 [XI]   "Text of ISO/IEC FDIS 23094-1 Essential Video Coding", no. n19229, 30 April 2020 (2020-04-30), XP030285492, Retrieved from the Internet [retrieved on 20200430] [X] 1,2,4,6-8,10,11,14,18-22 * section [7.3.2.1 SPS RBSP syntax]; page 30 * * section [ 7.4.3.1 SPS RBSP semantics]; page 56 * * section [8.5.5.2.2 Luma sample bilinear interpolation process]; page 196 * * section [8.7.6 Post-reconstruction filter process]; page 217 - page 218 * * section [A.3.2 Baseline profile]; page 288 * * section [A.3.3 Main profile]; page 289 *[I] 3,5,9,12,13,15-17
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.