CA3063559C - Intra filtering applied together with transform processing in video coding - Google Patents
Intra filtering applied together with transform processing in video coding Download PDFInfo
- Publication number
- CA3063559C CA3063559C CA3063559A CA3063559A CA3063559C CA 3063559 C CA3063559 C CA 3063559C CA 3063559 A CA3063559 A CA 3063559A CA 3063559 A CA3063559 A CA 3063559A CA 3063559 C CA3063559 C CA 3063559C
- Authority
- CA
- Canada
- Prior art keywords
- block
- video data
- mode
- transform
- video
- 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
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
- H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
-
- 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
- H04N19/117—Filters, e.g. for pre-processing or post-processing
-
- 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
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
-
- 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
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
-
- 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
- H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
- H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
- H04N19/169—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
- H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
-
- 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
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
-
- 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
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
-
- 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
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
-
- 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
- H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762520426P | 2017-06-15 | 2017-06-15 | |
| US62/520,426 | 2017-06-15 | ||
| US15/987,560 | 2018-05-23 | ||
| US15/987,560 US10805641B2 (en) | 2017-06-15 | 2018-05-23 | Intra filtering applied together with transform processing in video coding |
| PCT/US2018/034352 WO2018231488A1 (en) | 2017-06-15 | 2018-05-24 | Intra filtering applied together with transform processing in video coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3063559A1 CA3063559A1 (en) | 2018-12-20 |
| CA3063559C true CA3063559C (en) | 2023-03-28 |
Family
ID=64657715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3063559A Active CA3063559C (en) | 2017-06-15 | 2018-05-24 | Intra filtering applied together with transform processing in video coding |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US10805641B2 (OSRAM) |
| EP (2) | EP4236312A3 (OSRAM) |
| JP (1) | JP6950004B2 (OSRAM) |
| KR (1) | KR102278720B1 (OSRAM) |
| CN (1) | CN110720218B (OSRAM) |
| AU (1) | AU2018282523B2 (OSRAM) |
| BR (1) | BR112019025629A2 (OSRAM) |
| CA (1) | CA3063559C (OSRAM) |
| CL (1) | CL2019003620A1 (OSRAM) |
| CO (1) | CO2019013898A2 (OSRAM) |
| TW (1) | TWI745594B (OSRAM) |
| WO (1) | WO2018231488A1 (OSRAM) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11146795B2 (en) | 2017-03-10 | 2021-10-12 | Qualcomm Incorporated | Intra filtering flag in video coding |
| US10805641B2 (en) | 2017-06-15 | 2020-10-13 | Qualcomm Incorporated | Intra filtering applied together with transform processing in video coding |
| KR102540171B1 (ko) * | 2017-11-22 | 2023-06-05 | 인텔렉추얼디스커버리 주식회사 | 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 |
| EP3496401A1 (en) * | 2017-12-05 | 2019-06-12 | Thomson Licensing | Method and apparatus for video encoding and decoding based on block shape |
| US11252420B2 (en) * | 2017-12-15 | 2022-02-15 | Lg Electronics Inc. | Image coding method on basis of secondary transform and device therefor |
| US10567752B2 (en) | 2018-07-02 | 2020-02-18 | Tencent America LLC | Method and apparatus for intra prediction for non-square blocks in video compression |
| US10911765B2 (en) * | 2018-08-01 | 2021-02-02 | Tencent America LLC | Method and apparatus for video coding |
| US10491893B1 (en) * | 2018-08-29 | 2019-11-26 | Tencent America LLC | Method and apparatus for multi-line intra prediction |
| US10834393B2 (en) * | 2018-09-10 | 2020-11-10 | Tencent America LLC | Intra interpolation filter for multi-line intra prediction |
| WO2020106186A1 (en) * | 2018-11-19 | 2020-05-28 | Huawei Technologies Co., Ltd. | Method and apparatus for hierarchical signaling of enabling and disabling prediction mechanisms for video coding |
| ES3047711T3 (en) | 2018-12-28 | 2025-12-04 | Ericsson Telefon Ab L M | Method and apparatus for selecting transform selection in an encoder and decoder |
| BR112021013709A2 (pt) * | 2019-01-14 | 2021-09-21 | Samsung Electronics Co., Ltd. | Método de decodificação de vídeo, aparelho de decodificação de vídeo, método de codificação de vídeo, e aparelho de codificação de vídeo |
| KR20210114386A (ko) | 2019-02-08 | 2021-09-23 | 주식회사 윌러스표준기술연구소 | 이차 변환을 이용하는 비디오 신호 처리 방법 및 장치 |
| CN113439441B (zh) * | 2019-02-15 | 2025-06-20 | 北京字节跳动网络技术有限公司 | 基于块分割的变换参数推导 |
| CN113491116B (zh) * | 2019-02-28 | 2024-07-26 | 数码士有限公司 | 基于帧内预测的视频信号处理方法和装置 |
| WO2020185943A1 (en) * | 2019-03-11 | 2020-09-17 | Tencent America LLC | Improvement for inter pdpc mode |
| EP3941044A4 (en) | 2019-03-11 | 2022-12-14 | Nippon Hoso Kyokai | PICTURE CODING DEVICE, PICTURE DECODING DEVICE, AND PROGRAM |
| EP4325863B1 (en) * | 2019-03-22 | 2024-12-11 | LG Electronics Inc. | Image decoding and encoding |
| US11616966B2 (en) * | 2019-04-03 | 2023-03-28 | Mediatek Inc. | Interaction between core transform and secondary transform |
| US11991393B2 (en) | 2019-04-16 | 2024-05-21 | Hfi Innovation Inc. | Methods and apparatuses for coding video data with secondary transform |
| WO2020211775A1 (en) * | 2019-04-16 | 2020-10-22 | Mediatek Inc. | Methods and apparatuses for coding video data with adaptive secondary transform signaling depending on tb level syntax |
| CN113728636B (zh) | 2019-04-23 | 2022-11-04 | 北京字节跳动网络技术有限公司 | 编解码视频中二次变换的选择性使用 |
| CN113841409B (zh) * | 2019-05-10 | 2023-12-19 | 北京字节跳动网络技术有限公司 | 用于视频处理的简化二次变换的有条件使用 |
| CN113812155B (zh) * | 2019-05-11 | 2023-10-27 | 北京字节跳动网络技术有限公司 | 多种帧间编解码方法之间的交互 |
| US11641471B2 (en) | 2019-05-27 | 2023-05-02 | Lg Electronics Inc. | Image coding method and device on basis of wide-angle intra prediction and transform |
| CN117354521A (zh) | 2019-06-07 | 2024-01-05 | 北京字节跳动网络技术有限公司 | 视频比特流中的简化二次变换的有条件信令 |
| EP3987801A1 (en) * | 2019-06-21 | 2022-04-27 | Telefonaktiebolaget LM Ericsson (PUBL) | Method and apparatus for non-separable transform selection in an encoder and decoder |
| US12010301B2 (en) * | 2019-06-24 | 2024-06-11 | Shar Kabushiki Kaisha | Systems and methods for performing intra prediction coding in video coding |
| CN120881296A (zh) * | 2019-06-25 | 2025-10-31 | Oppo广东移动通信有限公司 | 信息处理方法及装置、设备、存储介质 |
| KR102699362B1 (ko) | 2019-08-03 | 2024-08-28 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 코딩에서 축소된 2차 변환을 위한 행렬들의 선택 |
| WO2021032045A1 (en) | 2019-08-17 | 2021-02-25 | Beijing Bytedance Network Technology Co., Ltd. | Context modeling of side information for reduced secondary transforms in video |
| US11677984B2 (en) * | 2019-08-20 | 2023-06-13 | Qualcomm Incorporated | Low-frequency non-separable transform (LFNST) signaling |
| KR20220066045A (ko) | 2019-09-19 | 2022-05-23 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 코딩의 스케일링 윈도우 |
| MX2022002916A (es) | 2019-09-19 | 2022-04-06 | Beijing Bytedance Network Tech Co Ltd | Derivacion de posiciones de muestra de referencia en codificacion de video. |
| KR102895206B1 (ko) * | 2019-09-20 | 2025-12-03 | 노키아 테크놀로지스 오와이 | 비디오 코딩 및 디코딩 장치, 방법 및 컴퓨터 프로그램 |
| KR20220070437A (ko) | 2019-10-05 | 2022-05-31 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 코딩 툴의 레벨 기반 시그널링 |
| CN114556918B (zh) * | 2019-10-12 | 2025-08-12 | 北京字节跳动网络技术有限公司 | 细化视频编解码工具的使用和信令 |
| MX2022004200A (es) | 2019-10-13 | 2022-05-02 | Beijing Bytedance Network Tech Co Ltd | Interaccion entre remuestreo de imagen de referencia y herramientas de codificacion de video. |
| KR20220113379A (ko) | 2019-12-27 | 2022-08-12 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 비디오 픽처 헤더의 슬라이스 유형의 시그널링 |
| US11368715B2 (en) * | 2019-12-27 | 2022-06-21 | Qualcomm Incorporated | Block-based delta pulse code modulation for video coding |
| CN115606182A (zh) | 2020-03-25 | 2023-01-13 | 抖音视界有限公司(Cn) | 使用增强二次变换的编解码视频处理 |
| US12132932B2 (en) * | 2020-12-22 | 2024-10-29 | Qualcomm Incorporated | Intra prediction using enhanced interpolation filters |
| CN118923110A (zh) * | 2022-03-23 | 2024-11-08 | 北京达佳互联信息技术有限公司 | 用于视频编解码的跨分量预测的方法和装置 |
| US11695965B1 (en) | 2022-10-13 | 2023-07-04 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Video coding using a coded picture buffer |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6088802A (en) | 1997-06-04 | 2000-07-11 | Spyrus, Inc. | Peripheral device with integrated security functionality |
| US7783901B2 (en) | 2001-12-05 | 2010-08-24 | At&T Intellectual Property Ii, L.P. | Network security device and method |
| JP4617644B2 (ja) | 2003-07-18 | 2011-01-26 | ソニー株式会社 | 符号化装置及び方法 |
| EP2039171B1 (en) | 2006-07-07 | 2016-10-05 | Telefonaktiebolaget LM Ericsson (publ) | Weighted prediction for video coding |
| US8621601B2 (en) | 2008-05-21 | 2013-12-31 | Sandisk Technologies Inc. | Systems for authentication for access to software development kit for a peripheral device |
| WO2011127964A2 (en) | 2010-04-13 | 2011-10-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for intra predicting a block, apparatus for reconstructing a block of a picture, apparatus for reconstructing a block of a picture by intra prediction |
| CN102857752B (zh) | 2011-07-01 | 2016-03-30 | 华为技术有限公司 | 一种像素预测方法和装置 |
| US9237358B2 (en) | 2011-11-08 | 2016-01-12 | Qualcomm Incorporated | Context reduction for context adaptive binary arithmetic coding |
| US10681036B2 (en) | 2014-03-28 | 2020-06-09 | Ncr Corporation | Composite security interconnect device and methods |
| US10445710B2 (en) | 2014-08-26 | 2019-10-15 | Ncr Corporation | Security device key management |
| CN104301730A (zh) * | 2014-10-14 | 2015-01-21 | 河海大学常州校区 | 基于视频移动设备的双向视频编解码系统及其方法 |
| WO2016154963A1 (en) | 2015-04-01 | 2016-10-06 | Mediatek Inc. | Methods for chroma coding in video codec |
| US10425648B2 (en) | 2015-09-29 | 2019-09-24 | Qualcomm Incorporated | Video intra-prediction using position-dependent prediction combination for video coding |
| CN114339228B (zh) * | 2016-05-04 | 2024-04-12 | 夏普株式会社 | 用于对变换数据进行编码的系统和方法 |
| CN105872564B (zh) * | 2016-05-27 | 2019-02-19 | 武汉拓宝科技股份有限公司 | H.264/avc到h.265/hevc转码的帧内预测模式决定方法及系统 |
| US20180199062A1 (en) | 2017-01-11 | 2018-07-12 | Qualcomm Incorporated | Intra prediction techniques for video coding |
| US11146795B2 (en) | 2017-03-10 | 2021-10-12 | Qualcomm Incorporated | Intra filtering flag in video coding |
| US10805641B2 (en) | 2017-06-15 | 2020-10-13 | Qualcomm Incorporated | Intra filtering applied together with transform processing in video coding |
-
2018
- 2018-05-23 US US15/987,560 patent/US10805641B2/en active Active
- 2018-05-24 KR KR1020197036176A patent/KR102278720B1/ko active Active
- 2018-05-24 CA CA3063559A patent/CA3063559C/en active Active
- 2018-05-24 JP JP2019569475A patent/JP6950004B2/ja active Active
- 2018-05-24 EP EP23186324.2A patent/EP4236312A3/en active Pending
- 2018-05-24 BR BR112019025629-6A patent/BR112019025629A2/pt unknown
- 2018-05-24 EP EP18731286.3A patent/EP3639518B1/en active Active
- 2018-05-24 AU AU2018282523A patent/AU2018282523B2/en not_active Ceased
- 2018-05-24 WO PCT/US2018/034352 patent/WO2018231488A1/en not_active Ceased
- 2018-05-24 CN CN201880036843.3A patent/CN110720218B/zh active Active
- 2018-05-30 TW TW107118457A patent/TWI745594B/zh active
-
2019
- 2019-12-11 CO CONC2019/0013898A patent/CO2019013898A2/es unknown
- 2019-12-11 CL CL2019003620A patent/CL2019003620A1/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW201906406A (zh) | 2019-02-01 |
| KR102278720B1 (ko) | 2021-07-16 |
| CL2019003620A1 (es) | 2020-06-26 |
| CO2019013898A2 (es) | 2020-01-17 |
| CN110720218A (zh) | 2020-01-21 |
| EP3639518A1 (en) | 2020-04-22 |
| US10805641B2 (en) | 2020-10-13 |
| EP4236312A3 (en) | 2023-10-25 |
| JP2020523910A (ja) | 2020-08-06 |
| EP4236312A2 (en) | 2023-08-30 |
| EP3639518B1 (en) | 2023-08-23 |
| AU2018282523A1 (en) | 2019-12-05 |
| US20180367814A1 (en) | 2018-12-20 |
| KR20200019132A (ko) | 2020-02-21 |
| JP6950004B2 (ja) | 2021-10-13 |
| TWI745594B (zh) | 2021-11-11 |
| AU2018282523B2 (en) | 2022-06-02 |
| CN110720218B (zh) | 2022-08-16 |
| CA3063559A1 (en) | 2018-12-20 |
| BR112019025629A2 (pt) | 2020-06-16 |
| WO2018231488A1 (en) | 2018-12-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA3063559C (en) | Intra filtering applied together with transform processing in video coding | |
| US12206864B2 (en) | Intra filtering flag in video coding | |
| AU2023202344B2 (en) | Position dependent intra prediction combination extended with angular modes | |
| AU2017238084B2 (en) | Using luma information for chroma prediction with separate luma-chroma framework in video coding | |
| HK40015204A (en) | Intra filtering applied together with transform processing in video coding | |
| HK40015204B (en) | Intra filtering applied together with transform processing in video coding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20201209 |
|
| EEER | Examination request |
Effective date: 20201209 |
|
| EEER | Examination request |
Effective date: 20201209 |
|
| EEER | Examination request |
Effective date: 20201209 |
|
| EEER | Examination request |
Effective date: 20201209 |
|
| EEER | Examination request |
Effective date: 20201209 |