CA3131695C - Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals - Google Patents
Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals Download PDFInfo
- Publication number
- CA3131695C CA3131695C CA3131695A CA3131695A CA3131695C CA 3131695 C CA3131695 C CA 3131695C CA 3131695 A CA3131695 A CA 3131695A CA 3131695 A CA3131695 A CA 3131695A CA 3131695 C CA3131695 C CA 3131695C
- Authority
- CA
- Canada
- Prior art keywords
- vector
- signals
- hoa
- domain signals
- coefficient domain
- 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
- 238000000034 method Methods 0.000 title claims description 10
- 239000013598 vector Substances 0.000 claims abstract description 161
- 239000011159 matrix material Substances 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 26
- 230000001131 transforming effect Effects 0.000 claims description 6
- 238000010606 normalization Methods 0.000 description 43
- 230000000875 corresponding effect Effects 0.000 description 31
- 238000012545 processing Methods 0.000 description 27
- 230000005540 biological transmission Effects 0.000 description 16
- 230000003044 adaptive effect Effects 0.000 description 12
- 230000008859 change Effects 0.000 description 7
- 238000001228 spectrum Methods 0.000 description 5
- 238000009499 grossing Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 235000009434 Actinidia chinensis Nutrition 0.000 description 1
- 244000298697 Actinidia deliciosa Species 0.000 description 1
- 235000009436 Actinidia deliciosa Nutrition 0.000 description 1
- 101100477838 Caenorhabditis elegans smu-2 gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001702 transmitter Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
- H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
- H04S2420/11—Application of ambisonics in stereophonic audio systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Computational Linguistics (AREA)
- Human Computer Interaction (AREA)
- Mathematical Physics (AREA)
- Health & Medical Sciences (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Stereophonic System (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Image Processing (AREA)
- Radio Relay Systems (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Error Detection And Correction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA3209871A CA3209871A1 (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20130305986 EP2824661A1 (en) | 2013-07-11 | 2013-07-11 | Method and Apparatus for generating from a coefficient domain representation of HOA signals a mixed spatial/coefficient domain representation of said HOA signals |
| EP13305986.5 | 2013-07-11 | ||
| CA2914904A CA2914904C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2914904A Division CA2914904C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3209871A Division CA3209871A1 (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA3131695A1 CA3131695A1 (en) | 2015-01-15 |
| CA3131695C true CA3131695C (en) | 2023-09-26 |
Family
ID=48915948
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3131695A Active CA3131695C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
| CA3131690A Active CA3131690C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
| CA3209871A Pending CA3209871A1 (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
| CA2914904A Active CA2914904C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA3131690A Active CA3131690C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
| CA3209871A Pending CA3209871A1 (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
| CA2914904A Active CA2914904C (en) | 2013-07-11 | 2014-06-24 | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals |
Country Status (14)
| Country | Link |
|---|---|
| US (9) | US9668079B2 (enExample) |
| EP (5) | EP2824661A1 (enExample) |
| JP (5) | JP6490068B2 (enExample) |
| KR (5) | KR102658702B1 (enExample) |
| CN (9) | CN110648675B (enExample) |
| AU (4) | AU2014289527B2 (enExample) |
| BR (3) | BR122017013717B1 (enExample) |
| CA (4) | CA3131695C (enExample) |
| MX (2) | MX354300B (enExample) |
| MY (3) | MY199036A (enExample) |
| RU (1) | RU2670797C9 (enExample) |
| TW (6) | TWI779381B (enExample) |
| WO (1) | WO2015003900A1 (enExample) |
| ZA (7) | ZA201508710B (enExample) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2665208A1 (en) | 2012-05-14 | 2013-11-20 | Thomson Licensing | Method and apparatus for compressing and decompressing a Higher Order Ambisonics signal representation |
| EP2824661A1 (en) * | 2013-07-11 | 2015-01-14 | Thomson Licensing | Method and Apparatus for generating from a coefficient domain representation of HOA signals a mixed spatial/coefficient domain representation of said HOA signals |
| CN113808598B (zh) | 2014-06-27 | 2025-03-18 | 杜比国际公司 | 针对hoa数据帧表示的压缩确定表示非差分增益值所需的最小整数比特数的方法 |
| EP3860154B1 (en) | 2014-06-27 | 2024-02-21 | Dolby International AB | Method for decoding a compressed hoa dataframe representation of a sound field. |
| CN107077852B (zh) | 2014-06-27 | 2020-12-04 | 杜比国际公司 | 包括与hoa数据帧表示的特定数据帧的通道信号关联的非差分增益值的编码hoa数据帧表示 |
| EP2960903A1 (en) | 2014-06-27 | 2015-12-30 | Thomson Licensing | Method and apparatus for determining for the compression of an HOA data frame representation a lowest integer number of bits required for representing non-differential gain values |
| EP2963948A1 (en) | 2014-07-02 | 2016-01-06 | Thomson Licensing | Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a HOA signal representation |
| CN106463131B (zh) | 2014-07-02 | 2020-12-08 | 杜比国际公司 | 用于对hoa信号表示的子带内的主导方向信号的方向进行编码/解码的方法和装置 |
| EP3164867A1 (en) | 2014-07-02 | 2017-05-10 | Dolby International AB | Method and apparatus for encoding/decoding of directions of dominant directional signals within subbands of a hoa signal representation |
| WO2016001357A1 (en) | 2014-07-02 | 2016-01-07 | Thomson Licensing | Method and apparatus for decoding a compressed hoa representation, and method and apparatus for encoding a compressed hoa representation |
| EP2963949A1 (en) | 2014-07-02 | 2016-01-06 | Thomson Licensing | Method and apparatus for decoding a compressed HOA representation, and method and apparatus for encoding a compressed HOA representation |
| US9847088B2 (en) | 2014-08-29 | 2017-12-19 | Qualcomm Incorporated | Intermediate compression for higher order ambisonic audio data |
| US9875745B2 (en) * | 2014-10-07 | 2018-01-23 | Qualcomm Incorporated | Normalization of ambient higher order ambisonic audio data |
| US12087311B2 (en) | 2015-07-30 | 2024-09-10 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding an HOA representation |
| US10468037B2 (en) | 2015-07-30 | 2019-11-05 | Dolby Laboratories Licensing Corporation | Method and apparatus for generating from an HOA signal representation a mezzanine HOA signal representation |
| US12183352B2 (en) * | 2022-09-15 | 2024-12-31 | Sony Interactive Entertainment Inc. | Multi-order optimized Ambisonics decoding |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19526366A1 (de) * | 1995-07-20 | 1997-01-23 | Bosch Gmbh Robert | Verfahren zur Redundanzreduktion bei der Codierung von mehrkanaligen Signalen und Vorrichtung zur Dekodierung von redundanzreduzierten, mehrkanaligen Signalen |
| US5754733A (en) * | 1995-08-01 | 1998-05-19 | Qualcomm Incorporated | Method and apparatus for generating and encoding line spectral square roots |
| EP0904584A2 (en) * | 1997-02-10 | 1999-03-31 | Koninklijke Philips Electronics N.V. | Transmission system for transmitting speech signals |
| TW348684U (en) | 1997-10-20 | 1998-12-21 | Han An Shr | Folding connection for tilting connecting rods |
| US8605911B2 (en) * | 2001-07-10 | 2013-12-10 | Dolby International Ab | Efficient and scalable parametric stereo coding for low bitrate audio coding applications |
| FR2847376B1 (fr) * | 2002-11-19 | 2005-02-04 | France Telecom | Procede de traitement de donnees sonores et dispositif d'acquisition sonore mettant en oeuvre ce procede |
| TWI360361B (en) * | 2004-04-13 | 2012-03-11 | Qualcomm Inc | Multimedia communication using co-located care of |
| US7930176B2 (en) * | 2005-05-20 | 2011-04-19 | Broadcom Corporation | Packet loss concealment for block-independent speech codecs |
| KR20080015878A (ko) * | 2005-05-25 | 2008-02-20 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 복수 채널 신호의 예측 엔코딩 |
| US7831434B2 (en) * | 2006-01-20 | 2010-11-09 | Microsoft Corporation | Complex-transform channel coding with extended-band frequency coding |
| CN101136905B (zh) * | 2006-08-31 | 2010-09-08 | 华为技术有限公司 | 移动IPv6中的绑定更新方法及移动IPv6通讯系统 |
| RU2495503C2 (ru) * | 2008-07-29 | 2013-10-10 | Панасоник Корпорэйшн | Устройство кодирования звука, устройство декодирования звука, устройство кодирования и декодирования звука и система проведения телеконференций |
| EP2154910A1 (en) * | 2008-08-13 | 2010-02-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus for merging spatial audio streams |
| EP2205007B1 (en) * | 2008-12-30 | 2019-01-09 | Dolby International AB | Method and apparatus for three-dimensional acoustic field encoding and optimal reconstruction |
| WO2010086342A1 (en) | 2009-01-28 | 2010-08-05 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder, method for encoding an input audio information, method for decoding an input audio information and computer program using improved coding tables |
| CN102081926B (zh) * | 2009-11-27 | 2013-06-05 | 中兴通讯股份有限公司 | 格型矢量量化音频编解码方法和系统 |
| AU2011231565B2 (en) * | 2010-03-26 | 2014-08-28 | Dolby International Ab | Method and device for decoding an audio soundfield representation for audio playback |
| US8879771B2 (en) * | 2010-04-08 | 2014-11-04 | Nokia Corporation | Apparatus and method for sound reproduction |
| BR122019013299B1 (pt) * | 2010-04-09 | 2021-01-05 | Dolby International Ab | aparelho e método para emitir um sinal de áudio esterofônico possuindo um canal esquerdo e um canal direito e meio legível por computador não transitório |
| NZ587483A (en) * | 2010-08-20 | 2012-12-21 | Ind Res Ltd | Holophonic speaker system with filters that are pre-configured based on acoustic transfer functions |
| EP2450880A1 (en) * | 2010-11-05 | 2012-05-09 | Thomson Licensing | Data structure for Higher Order Ambisonics audio data |
| EP2469741A1 (en) * | 2010-12-21 | 2012-06-27 | Thomson Licensing | Method and apparatus for encoding and decoding successive frames of an ambisonics representation of a 2- or 3-dimensional sound field |
| US20120321816A1 (en) | 2011-06-14 | 2012-12-20 | Xerox Corporation | Systems and methods for leveling inks |
| EP2541547A1 (en) * | 2011-06-30 | 2013-01-02 | Thomson Licensing | Method and apparatus for changing the relative positions of sound objects contained within a higher-order ambisonics representation |
| JP2013050663A (ja) * | 2011-08-31 | 2013-03-14 | Nippon Hoso Kyokai <Nhk> | 多チャネル音響符号化装置およびそのプログラム |
| JP2013133366A (ja) | 2011-12-26 | 2013-07-08 | Sekisui Film Kk | 接着性フィルム、並びにこれを用いてなる太陽電池用封止フィルム、合わせガラス用中間フィルム、太陽電池及び合わせガラス |
| EP2743922A1 (en) | 2012-12-12 | 2014-06-18 | Thomson Licensing | Method and apparatus for compressing and decompressing a higher order ambisonics representation for a sound field |
| CN102982805B (zh) * | 2012-12-27 | 2014-11-19 | 北京理工大学 | 一种基于张量分解的多声道音频信号压缩方法 |
| EP2800401A1 (en) | 2013-04-29 | 2014-11-05 | Thomson Licensing | Method and Apparatus for compressing and decompressing a Higher Order Ambisonics representation |
| EP2824661A1 (en) * | 2013-07-11 | 2015-01-14 | Thomson Licensing | Method and Apparatus for generating from a coefficient domain representation of HOA signals a mixed spatial/coefficient domain representation of said HOA signals |
-
2013
- 2013-07-11 EP EP20130305986 patent/EP2824661A1/en not_active Withdrawn
-
2014
- 2014-06-24 US US14/904,406 patent/US9668079B2/en active Active
- 2014-06-24 KR KR1020237016461A patent/KR102658702B1/ko active Active
- 2014-06-24 MY MYPI2019002673A patent/MY199036A/en unknown
- 2014-06-24 CN CN201910919535.1A patent/CN110648675B/zh active Active
- 2014-06-24 MY MYPI2019002672A patent/MY192149A/en unknown
- 2014-06-24 CN CN201910918534.5A patent/CN110459231B/zh active Active
- 2014-06-24 RU RU2016104403A patent/RU2670797C9/ru active
- 2014-06-24 JP JP2016524725A patent/JP6490068B2/ja active Active
- 2014-06-24 CN CN201910918525.6A patent/CN110459230B/zh active Active
- 2014-06-24 CA CA3131695A patent/CA3131695C/en active Active
- 2014-06-24 CN CN202311075476.7A patent/CN116884421A/zh active Pending
- 2014-06-24 CN CN201910918531.1A patent/CN110491397B/zh active Active
- 2014-06-24 KR KR1020227011971A patent/KR102534163B1/ko active Active
- 2014-06-24 AU AU2014289527A patent/AU2014289527B2/en active Active
- 2014-06-24 KR KR1020217006813A patent/KR102386726B1/ko active Active
- 2014-06-24 BR BR122017013717-4A patent/BR122017013717B1/pt active IP Right Grant
- 2014-06-24 KR KR1020167000562A patent/KR102226620B1/ko active Active
- 2014-06-24 MY MYPI2015704551A patent/MY174125A/en unknown
- 2014-06-24 CA CA3131690A patent/CA3131690C/en active Active
- 2014-06-24 CA CA3209871A patent/CA3209871A1/en active Pending
- 2014-06-24 CN CN202310731179.7A patent/CN116564321A/zh active Pending
- 2014-06-24 EP EP24190333.5A patent/EP4456567A3/en active Pending
- 2014-06-24 CN CN201480038940.8A patent/CN105378833B/zh active Active
- 2014-06-24 EP EP21216783.7A patent/EP4012704B1/en active Active
- 2014-06-24 CN CN202311170904.4A patent/CN117275492A/zh active Pending
- 2014-06-24 BR BR122020017865-5A patent/BR122020017865B1/pt active IP Right Grant
- 2014-06-24 WO PCT/EP2014/063306 patent/WO2015003900A1/en not_active Ceased
- 2014-06-24 EP EP18205365.2A patent/EP3518235B1/en active Active
- 2014-06-24 EP EP14732876.9A patent/EP3020041B1/en active Active
- 2014-06-24 CN CN202311075024.9A patent/CN117116273A/zh active Pending
- 2014-06-24 CA CA2914904A patent/CA2914904C/en active Active
- 2014-06-24 BR BR112016000245-8A patent/BR112016000245B1/pt active IP Right Grant
- 2014-06-24 MX MX2016000003A patent/MX354300B/es active IP Right Grant
- 2014-06-24 MX MX2018002256A patent/MX378436B/es unknown
- 2014-06-24 KR KR1020247012405A patent/KR20240055139A/ko active Pending
- 2014-07-04 TW TW109137943A patent/TWI779381B/zh active
- 2014-07-04 TW TW108127251A patent/TWI712034B/zh active
- 2014-07-04 TW TW111133302A patent/TWI871529B/zh active
- 2014-07-04 TW TW107115309A patent/TWI669706B/zh active
- 2014-07-04 TW TW103123079A patent/TWI633539B/zh active
- 2014-07-04 TW TW113149457A patent/TW202516945A/zh unknown
-
2015
- 2015-11-26 ZA ZA2015/08710A patent/ZA201508710B/en unknown
-
2017
- 2017-05-05 US US15/588,320 patent/US9900721B2/en active Active
- 2017-10-23 US US15/790,375 patent/US10382876B2/en active Active
-
2018
- 2018-11-23 ZA ZA2018/07916A patent/ZA201807916B/en unknown
-
2019
- 2019-02-26 JP JP2019032748A patent/JP6792011B2/ja active Active
- 2019-05-28 ZA ZA2019/03363A patent/ZA201903363B/en unknown
- 2019-07-29 US US16/525,074 patent/US10841721B2/en active Active
-
2020
- 2020-05-28 ZA ZA2020/03171A patent/ZA202003171B/en unknown
- 2020-06-25 AU AU2020204222A patent/AU2020204222B2/en active Active
- 2020-11-05 JP JP2020184838A patent/JP7158452B2/ja active Active
- 2020-11-16 US US17/099,120 patent/US11297455B2/en active Active
-
2022
- 2022-03-10 ZA ZA2022/02891A patent/ZA202202891B/en unknown
- 2022-03-10 ZA ZA2022/02892A patent/ZA202202892B/en unknown
- 2022-04-01 US US17/711,029 patent/US11540076B2/en active Active
- 2022-06-20 AU AU2022204314A patent/AU2022204314B2/en active Active
- 2022-10-11 JP JP2022163123A patent/JP7504174B2/ja active Active
- 2022-12-15 US US18/081,956 patent/US11863958B2/en active Active
-
2023
- 2023-02-09 ZA ZA2023/01623A patent/ZA202301623B/en unknown
- 2023-11-22 US US18/517,301 patent/US12245013B2/en active Active
-
2024
- 2024-03-22 AU AU2024201885A patent/AU2024201885A1/en active Pending
- 2024-06-11 JP JP2024094070A patent/JP7772487B2/ja active Active
-
2025
- 2025-01-28 US US19/038,713 patent/US20250184680A1/en active Pending
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA3131695C (en) | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/coefficient domain representation of said hoa signals | |
| HK40066458B (en) | Method, apparatus, program a for decoding a mixed spatial/ coefficient domain representation of hoa signals | |
| HK40066458A (en) | Method, apparatus, program a for decoding a mixed spatial/ coefficient domain representation of hoa signals | |
| HK40112173A (en) | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/ coefficient domain representation of said hoa signals | |
| HK40004348B (en) | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/ coefficient domain representation of said hoa signals | |
| HK40004348A (en) | Method and apparatus for generating from a coefficient domain representation of hoa signals a mixed spatial/ coefficient domain representation of said hoa signals |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |
|
| EEER | Examination request |
Effective date: 20210923 |