JP7261750B2 - 動き補償のための複数の予測子候補 - Google Patents
動き補償のための複数の予測子候補 Download PDFInfo
- Publication number
- JP7261750B2 JP7261750B2 JP2019569371A JP2019569371A JP7261750B2 JP 7261750 B2 JP7261750 B2 JP 7261750B2 JP 2019569371 A JP2019569371 A JP 2019569371A JP 2019569371 A JP2019569371 A JP 2019569371A JP 7261750 B2 JP7261750 B2 JP 7261750B2
- Authority
- JP
- Japan
- Prior art keywords
- motion
- block
- motion vectors
- control point
- predictor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/182—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a pixel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
- H04N19/521—Processing of motion vectors for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting motion vectors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/537—Motion estimation other than block-based
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/567—Motion estimation based on rate distortion criteria
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023063148A JP7506220B2 (ja) | 2017-06-26 | 2023-04-10 | 動き補償のための複数の予測子候補 |
| JP2024095548A JP7804005B2 (ja) | 2017-06-26 | 2024-06-13 | 動き補償のための複数の予測子候補 |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP17305797.7 | 2017-06-26 | ||
| EP17305797.7A EP3422720A1 (en) | 2017-06-26 | 2017-06-26 | Multiple predictor candidates for motion compensation |
| EP18305386.7 | 2018-03-30 | ||
| EP18305386 | 2018-03-30 | ||
| PCT/EP2018/066975 WO2019002215A1 (en) | 2017-06-26 | 2018-06-25 | MULTIPLE PREDICTION CANDIDATES FOR MOTION COMPENSATION |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023063148A Division JP7506220B2 (ja) | 2017-06-26 | 2023-04-10 | 動き補償のための複数の予測子候補 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020526066A JP2020526066A (ja) | 2020-08-27 |
| JP2020526066A5 JP2020526066A5 (https=) | 2021-07-29 |
| JP7261750B2 true JP7261750B2 (ja) | 2023-04-20 |
Family
ID=64741162
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019569371A Active JP7261750B2 (ja) | 2017-06-26 | 2018-06-25 | 動き補償のための複数の予測子候補 |
| JP2023063148A Active JP7506220B2 (ja) | 2017-06-26 | 2023-04-10 | 動き補償のための複数の予測子候補 |
| JP2024095548A Active JP7804005B2 (ja) | 2017-06-26 | 2024-06-13 | 動き補償のための複数の予測子候補 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023063148A Active JP7506220B2 (ja) | 2017-06-26 | 2023-04-10 | 動き補償のための複数の予測子候補 |
| JP2024095548A Active JP7804005B2 (ja) | 2017-06-26 | 2024-06-13 | 動き補償のための複数の予測子候補 |
Country Status (6)
| Country | Link |
|---|---|
| US (3) | US11245921B2 (https=) |
| EP (1) | EP3646598A1 (https=) |
| JP (3) | JP7261750B2 (https=) |
| CN (3) | CN118233624A (https=) |
| RU (1) | RU2770185C2 (https=) |
| WO (1) | WO2019002215A1 (https=) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3468195A1 (en) | 2017-10-05 | 2019-04-10 | Thomson Licensing | Improved predictor candidates for motion compensation |
| WO2019229683A1 (en) | 2018-05-31 | 2019-12-05 | Beijing Bytedance Network Technology Co., Ltd. | Concept of interweaved prediction |
| GB2588004B (en) | 2018-06-05 | 2023-03-01 | Beijing Bytedance Network Tech Co Ltd | Interaction between IBC and affine |
| TWI731345B (zh) * | 2018-06-19 | 2021-06-21 | 大陸商北京字節跳動網絡技術有限公司 | 模式相依運動向量差精確集 |
| WO2019244119A1 (en) | 2018-06-21 | 2019-12-26 | Beijing Bytedance Network Technology Co., Ltd. | Sub-block mv inheritance between color components |
| WO2019244117A1 (en) | 2018-06-21 | 2019-12-26 | Beijing Bytedance Network Technology Co., Ltd. | Unified constrains for the merge affine mode and the non-merge affine mode |
| CN111656786B (zh) * | 2018-08-28 | 2024-04-09 | 华为技术有限公司 | 候选运动信息列表的构建方法、帧间预测方法及装置 |
| WO2020049540A1 (en) * | 2018-09-08 | 2020-03-12 | Beijing Bytedance Network Technology Co., Ltd. | Affine mode in video coding and decoding |
| KR102635047B1 (ko) | 2018-09-19 | 2024-02-07 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 적응적 움직임 벡터 해상도를 가지는 어파인 모드에 대한 구문 재사용 |
| CN112703733B (zh) | 2018-09-21 | 2024-08-09 | 交互数字Vc控股公司 | 一统一列表中的平移和仿射候选 |
| CN110944207B (zh) * | 2018-09-23 | 2023-12-08 | 北京字节跳动网络技术有限公司 | 仿射模型的表示 |
| CN110944193B (zh) | 2018-09-24 | 2023-08-11 | 北京字节跳动网络技术有限公司 | 视频编码和解码中的加权双向预测 |
| WO2020084470A1 (en) | 2018-10-22 | 2020-04-30 | Beijing Bytedance Network Technology Co., Ltd. | Storage of motion parameters with clipping for affine mode |
| WO2020094151A1 (en) | 2018-11-10 | 2020-05-14 | Beijing Bytedance Network Technology Co., Ltd. | Rounding in pairwise average candidate calculations |
| CN113170187A (zh) * | 2018-12-13 | 2021-07-23 | 北京达佳互联信息技术有限公司 | 导出构造的仿射合并候选的方法 |
| CN113454999B (zh) * | 2019-01-02 | 2024-07-02 | 北京字节跳动网络技术有限公司 | 划分模式之间的运动矢量推导 |
| WO2020156516A1 (en) | 2019-01-31 | 2020-08-06 | Beijing Bytedance Network Technology Co., Ltd. | Context for coding affine mode adaptive motion vector resolution |
| WO2020156517A1 (en) | 2019-01-31 | 2020-08-06 | Beijing Bytedance Network Technology Co., Ltd. | Fast algorithms for symmetric motion vector difference coding mode |
| CN120583238A (zh) | 2019-02-27 | 2025-09-02 | 北京字节跳动网络技术有限公司 | 基于回退的运动矢量场的基于子块运动矢量推导 |
| US11394999B2 (en) * | 2019-03-11 | 2022-07-19 | Alibaba Group Holding Limited | Method, device, and system for determining prediction weight for merge mode |
| EP3923583A4 (en) * | 2019-03-12 | 2022-04-27 | LG Electronics Inc. | VIDEO OR IMAGE CODING TO GENERATE WEIGHT INDEX INFORMATION FOR BI PREDICTION |
| CN117478876A (zh) | 2019-03-17 | 2024-01-30 | 北京字节跳动网络技术有限公司 | 基于光流的预测细化的计算 |
| CN113826400A (zh) | 2019-03-26 | 2021-12-21 | Vid拓展公司 | 用于利用光流的解码器侧运动向量细化的预测细化的方法和装置 |
| EP3959873A4 (en) * | 2019-04-25 | 2022-08-10 | OP Solutions, LLC | EFFICIENT CODING OF GLOBAL MOTION VECTORS |
| CN119697388A (zh) * | 2019-06-14 | 2025-03-25 | Lg电子株式会社 | 解码和编码设备及发送用于图像的数据的设备 |
| WO2020263467A1 (en) * | 2019-06-24 | 2020-12-30 | Alibaba Group Holding Limited | Method and apparatus for motion field storage in video coding |
| US20250159198A1 (en) * | 2021-09-29 | 2025-05-15 | Lg Electronics Inc. | Image encoding/decoding method and apparatus, and recording medium storing bitstream |
| US12149732B2 (en) * | 2022-11-22 | 2024-11-19 | Tencent America LLC | Systems and methods for improving warp extend and warp delta signaling with backup candidates |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141609A1 (zh) | 2015-03-10 | 2016-09-15 | 华为技术有限公司 | 图像预测方法和相关设备 |
| JP2019506089A (ja) | 2016-02-06 | 2019-02-28 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | 画像符号化方法及び装置、並びに画像復号方法及び装置 |
| JP2019519980A (ja) | 2016-05-16 | 2019-07-11 | クアルコム,インコーポレイテッド | ビデオコーディングのためのアフィンモーション予測 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2182972T3 (es) | 1996-04-19 | 2003-03-16 | Nokia Corp | Codificador y descodificador de video utilizando procedimientos de segmentacion y fusion de movimiento. |
| US20050013498A1 (en) * | 2003-07-18 | 2005-01-20 | Microsoft Corporation | Coding of motion vector information |
| US7567617B2 (en) * | 2003-09-07 | 2009-07-28 | Microsoft Corporation | Predicting motion vectors for fields of forward-predicted interlaced video frames |
| US8064520B2 (en) | 2003-09-07 | 2011-11-22 | Microsoft Corporation | Advanced bi-directional predictive coding of interlaced video |
| US9083983B2 (en) * | 2011-10-04 | 2015-07-14 | Qualcomm Incorporated | Motion vector predictor candidate clipping removal for video coding |
| CN104704837A (zh) * | 2012-10-03 | 2015-06-10 | 联发科技股份有限公司 | 三维视频编码中的元素间运动预测的方法及装置 |
| KR20150090206A (ko) * | 2013-01-30 | 2015-08-05 | 인텔 코포레이션 | 차세대 비디오를 위한 코딩을 위한 콘텐츠 적응적 파라메트릭 변환 |
| US9438910B1 (en) * | 2014-03-11 | 2016-09-06 | Google Inc. | Affine motion prediction in video coding |
| RU2577486C2 (ru) | 2014-07-10 | 2016-03-20 | Самсунг Электроникс Ко., Лтд. | Способ автоматического извлечения индексов ключевых кадров для расширения видеоданных |
| CN104661031B (zh) * | 2015-02-16 | 2017-12-22 | 华为技术有限公司 | 用于视频图像编码和解码的方法、编码设备和解码设备 |
| US10798403B2 (en) * | 2016-01-29 | 2020-10-06 | Sharp Kabushiki Kaisha | Prediction image generation device, video decoding device, and video coding device |
| PL3414900T3 (pl) * | 2016-03-15 | 2025-10-27 | Hfi Innovation Inc. | Sposób oraz urządzenie do kodowania wideo z afiniczną kompensacją ruchu |
| US10462462B2 (en) * | 2016-09-29 | 2019-10-29 | Qualcomm Incorporated | Motion vector difference coding technique for video coding |
| US10448010B2 (en) * | 2016-10-05 | 2019-10-15 | Qualcomm Incorporated | Motion vector prediction for affine motion models in video coding |
| US10681370B2 (en) * | 2016-12-29 | 2020-06-09 | Qualcomm Incorporated | Motion vector generation for affine motion model for video coding |
| US10873744B2 (en) * | 2017-01-03 | 2020-12-22 | Lg Electronics Inc. | Method and device for processing video signal by means of affine prediction |
| US10602180B2 (en) * | 2017-06-13 | 2020-03-24 | Qualcomm Incorporated | Motion vector prediction |
| US10798394B2 (en) * | 2018-06-27 | 2020-10-06 | Avago Technologies International Sales Pte. Limited | Low complexity affine merge mode for versatile video coding |
-
2018
- 2018-06-25 JP JP2019569371A patent/JP7261750B2/ja active Active
- 2018-06-25 US US16/622,895 patent/US11245921B2/en active Active
- 2018-06-25 WO PCT/EP2018/066975 patent/WO2019002215A1/en not_active Ceased
- 2018-06-25 RU RU2020102878A patent/RU2770185C2/ru active
- 2018-06-25 CN CN202410310266.XA patent/CN118233624A/zh active Pending
- 2018-06-25 CN CN201880043104.7A patent/CN110870314B/zh active Active
- 2018-06-25 CN CN202410310105.0A patent/CN118200520A/zh active Pending
- 2018-06-25 EP EP18734527.7A patent/EP3646598A1/en active Pending
-
2021
- 2021-12-21 US US17/557,179 patent/US11785250B2/en active Active
-
2023
- 2023-04-10 JP JP2023063148A patent/JP7506220B2/ja active Active
- 2023-08-28 US US18/238,683 patent/US20230421801A1/en active Pending
-
2024
- 2024-06-13 JP JP2024095548A patent/JP7804005B2/ja active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016141609A1 (zh) | 2015-03-10 | 2016-09-15 | 华为技术有限公司 | 图像预测方法和相关设备 |
| JP2019506089A (ja) | 2016-02-06 | 2019-02-28 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | 画像符号化方法及び装置、並びに画像復号方法及び装置 |
| JP2019519980A (ja) | 2016-05-16 | 2019-07-11 | クアルコム,インコーポレイテッド | ビデオコーディングのためのアフィンモーション予測 |
Non-Patent Citations (2)
| Title |
|---|
| CHEN, Jianle et al.,Algorithm Description of Joint Exploration Test Model 6 (JEM 6),Joint Video Exploration Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 6th Meeting: Hobart, AU, 31 March - 7 April 2017, [JVET-F1001-v2],JVET-F1001 (version 2),ITU-T,2017年05月31日,<URL:http://phenix.it-sudparis.eu/jvet/doc_end_user/documents/6_Hobart/wg11/JVET-F1001-v2.zip>: JVET-F1001-v2.docx: pp.19-21 |
| HUANG, Han et al.,Affine SKIP and DIRECT modes for efficient video coding,2012 Visual Communications and Image Processing,IEEE,2013年01月17日,pp.1-6,<URL:https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6410841>,<DOI: 10.1109/VCIP.2012.6410841> |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3646598A1 (en) | 2020-05-06 |
| CN118200520A (zh) | 2024-06-14 |
| JP2023098974A (ja) | 2023-07-11 |
| US20230421801A1 (en) | 2023-12-28 |
| JP7804005B2 (ja) | 2026-01-21 |
| RU2770185C2 (ru) | 2022-04-14 |
| CN118233624A (zh) | 2024-06-21 |
| JP2020526066A (ja) | 2020-08-27 |
| RU2020102878A (ru) | 2021-07-27 |
| US20220116654A1 (en) | 2022-04-14 |
| US20200221120A1 (en) | 2020-07-09 |
| US11245921B2 (en) | 2022-02-08 |
| WO2019002215A1 (en) | 2019-01-03 |
| JP2024125322A (ja) | 2024-09-18 |
| JP7506220B2 (ja) | 2024-06-25 |
| CN110870314A (zh) | 2020-03-06 |
| US11785250B2 (en) | 2023-10-10 |
| CN110870314B (zh) | 2024-04-02 |
| RU2020102878A3 (https=) | 2021-10-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7804005B2 (ja) | 動き補償のための複数の予測子候補 | |
| JP7640779B2 (ja) | 動き補償用の改善されたプレディクタ候補 | |
| US12464160B2 (en) | Methods and apparatuses for video encoding and video decoding | |
| JP7507279B2 (ja) | ビデオ符号化および復号における適応的照度補償のための方法および装置 | |
| EP3422720A1 (en) | Multiple predictor candidates for motion compensation | |
| JP2026071237A (ja) | 動き補償のための複数の予測子候補 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210621 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20210621 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20220808 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220812 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20221110 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230310 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230410 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7261750 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |