JP2018533772A - 分散された適応雑音消去のためのシステム及び方法 - Google Patents
分散された適応雑音消去のためのシステム及び方法 Download PDFInfo
- Publication number
- JP2018533772A JP2018533772A JP2018534769A JP2018534769A JP2018533772A JP 2018533772 A JP2018533772 A JP 2018533772A JP 2018534769 A JP2018534769 A JP 2018534769A JP 2018534769 A JP2018534769 A JP 2018534769A JP 2018533772 A JP2018533772 A JP 2018533772A
- Authority
- JP
- Japan
- Prior art keywords
- response
- quality measurement
- link
- link quality
- signal
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1083—Reduction of ambient noise
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
- G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1783—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17853—Methods, e.g. algorithms; Devices of the filter
- G10K11/17854—Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17879—General system configurations using both a reference signal and an error signal
- G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1787—General system configurations
- G10K11/17885—General system configurations additionally using a desired external signal, e.g. pass-through audio such as music or speech
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6025—Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6058—Portable telephones adapted for handsfree use involving the use of a headset accessory device connected to the portable telephone
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
- G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3026—Feedback
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3027—Feedforward
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/30—Means
- G10K2210/301—Computational
- G10K2210/3028—Filtering, e.g. Kalman filters or special analogue or digital filters
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/01—Hearing devices using active noise cancellation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Circuit For Audible Band Transducer (AREA)
- Telephone Function (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562221968P | 2015-09-22 | 2015-09-22 | |
| US62/221,968 | 2015-09-22 | ||
| US15/053,792 US10152960B2 (en) | 2015-09-22 | 2016-02-25 | Systems and methods for distributed adaptive noise cancellation |
| US15/053,792 | 2016-02-25 | ||
| PCT/US2016/049900 WO2017053041A1 (en) | 2015-09-22 | 2016-09-01 | Systems and methods for distributed adaptive noise cancellation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018533772A true JP2018533772A (ja) | 2018-11-15 |
| JP2018533772A5 JP2018533772A5 (cg-RX-API-DMAC10.html) | 2020-04-30 |
Family
ID=58282932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2018534769A Pending JP2018533772A (ja) | 2015-09-22 | 2016-09-01 | 分散された適応雑音消去のためのシステム及び方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10152960B2 (cg-RX-API-DMAC10.html) |
| EP (1) | EP3353774A1 (cg-RX-API-DMAC10.html) |
| JP (1) | JP2018533772A (cg-RX-API-DMAC10.html) |
| KR (1) | KR102477724B1 (cg-RX-API-DMAC10.html) |
| CN (1) | CN108352158B (cg-RX-API-DMAC10.html) |
| WO (1) | WO2017053041A1 (cg-RX-API-DMAC10.html) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201804129D0 (en) * | 2017-12-15 | 2018-05-02 | Cirrus Logic Int Semiconductor Ltd | Proximity sensing |
| US10810990B2 (en) | 2018-02-01 | 2020-10-20 | Cirrus Logic, Inc. | Active noise cancellation (ANC) system with selectable sample rates |
| TWI699656B (zh) * | 2018-12-27 | 2020-07-21 | 新唐科技股份有限公司 | 可切換的i2s介面 |
| CN110896512B (zh) * | 2019-12-13 | 2022-06-10 | 恒玄科技(上海)股份有限公司 | 针对半入耳式耳机的降噪方法、系统和半入耳式耳机 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010111205A (ja) * | 2008-11-05 | 2010-05-20 | Honda Motor Co Ltd | 能動型騒音制御装置 |
| WO2014172006A1 (en) * | 2013-04-16 | 2014-10-23 | Cirrus Logic, Inc. | Systems and methods for hybrid adaptive noise cancellation |
| JP2015517683A (ja) * | 2012-05-10 | 2015-06-22 | シラス ロジック、インコーポレイテッド | 雑音消去パーソナルオーディオデバイスにおける二次経路モデルおよび漏出経路モデルのエラー信号コンテンツ制御適応 |
Family Cites Families (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5138664A (en) * | 1989-03-25 | 1992-08-11 | Sony Corporation | Noise reducing device |
| US6021207A (en) | 1997-04-03 | 2000-02-01 | Resound Corporation | Wireless open ear canal earpiece |
| JP3837685B2 (ja) * | 1998-10-07 | 2006-10-25 | 富士通株式会社 | 能動雑音制御方法及び受話装置 |
| GB9927131D0 (en) * | 1999-11-16 | 2000-01-12 | Royal College Of Art | Apparatus for acoustically improving an environment and related method |
| TW589802B (en) * | 2001-10-09 | 2004-06-01 | Toa Corp | Impulse noise suppression device |
| US8295475B2 (en) * | 2006-01-13 | 2012-10-23 | Microsoft Corporation | Selective glitch detection, clock drift compensation, and anti-clipping in audio echo cancellation |
| US8340318B2 (en) * | 2006-12-28 | 2012-12-25 | Caterpillar Inc. | Methods and systems for measuring performance of a noise cancellation system |
| US9247346B2 (en) | 2007-12-07 | 2016-01-26 | Northern Illinois Research Foundation | Apparatus, system and method for noise cancellation and communication for incubators and related devices |
| JP5311831B2 (ja) | 2008-01-11 | 2013-10-09 | 富士通株式会社 | 通信装置、ノイズキャンセラ、ノイズ除去方法およびノイズ除去プログラム |
| JP4941338B2 (ja) * | 2008-02-01 | 2012-05-30 | 富士通株式会社 | 通信装置、ノイズ除去方法及びコンピュータプログラム |
| US9202456B2 (en) * | 2009-04-23 | 2015-12-01 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for automatic control of active noise cancellation |
| US8345888B2 (en) * | 2009-04-28 | 2013-01-01 | Bose Corporation | Digital high frequency phase compensation |
| US8737636B2 (en) * | 2009-07-10 | 2014-05-27 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for adaptive active noise cancellation |
| US8842848B2 (en) * | 2009-09-18 | 2014-09-23 | Aliphcom | Multi-modal audio system with automatic usage mode detection and configuration capability |
| EP2647002B1 (en) | 2010-12-03 | 2024-01-31 | Cirrus Logic, Inc. | Oversight control of an adaptive noise canceler in a personal audio device |
| US8571226B2 (en) * | 2010-12-10 | 2013-10-29 | Sony Corporation | Automatic polarity adaptation for ambient noise cancellation |
| JP5817113B2 (ja) * | 2010-12-24 | 2015-11-18 | ソニー株式会社 | 音声信号出力装置、音声出力システム、音声信号出力方法 |
| US8909524B2 (en) * | 2011-06-07 | 2014-12-09 | Analog Devices, Inc. | Adaptive active noise canceling for handset |
| DE102011104268A1 (de) * | 2011-06-15 | 2012-12-20 | Austriamicrosystems Ag | Kopfhörer, Audiogerät, Audiosystem und Verfahren zur Signalübertragung |
| EP2551845B1 (en) * | 2011-07-26 | 2020-04-01 | Harman Becker Automotive Systems GmbH | Noise reducing sound reproduction |
| US9014387B2 (en) * | 2012-04-26 | 2015-04-21 | Cirrus Logic, Inc. | Coordinated control of adaptive noise cancellation (ANC) among earspeaker channels |
| TW201501542A (zh) * | 2013-06-28 | 2015-01-01 | Powertech Ind Co Ltd | 耳機傳輸線及其連接端子 |
| US10382864B2 (en) | 2013-12-10 | 2019-08-13 | Cirrus Logic, Inc. | Systems and methods for providing adaptive playback equalization in an audio device |
| KR102372188B1 (ko) * | 2015-05-28 | 2022-03-08 | 삼성전자주식회사 | 오디오 신호의 잡음을 제거하기 위한 방법 및 그 전자 장치 |
-
2016
- 2016-02-25 US US15/053,792 patent/US10152960B2/en active Active
- 2016-09-01 KR KR1020187011235A patent/KR102477724B1/ko active Active
- 2016-09-01 WO PCT/US2016/049900 patent/WO2017053041A1/en not_active Ceased
- 2016-09-01 JP JP2018534769A patent/JP2018533772A/ja active Pending
- 2016-09-01 EP EP16766175.0A patent/EP3353774A1/en not_active Withdrawn
- 2016-09-01 CN CN201680067077.8A patent/CN108352158B/zh active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010111205A (ja) * | 2008-11-05 | 2010-05-20 | Honda Motor Co Ltd | 能動型騒音制御装置 |
| JP2015517683A (ja) * | 2012-05-10 | 2015-06-22 | シラス ロジック、インコーポレイテッド | 雑音消去パーソナルオーディオデバイスにおける二次経路モデルおよび漏出経路モデルのエラー信号コンテンツ制御適応 |
| WO2014172006A1 (en) * | 2013-04-16 | 2014-10-23 | Cirrus Logic, Inc. | Systems and methods for hybrid adaptive noise cancellation |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180059481A (ko) | 2018-06-04 |
| WO2017053041A1 (en) | 2017-03-30 |
| US20170084263A1 (en) | 2017-03-23 |
| CN108352158A (zh) | 2018-07-31 |
| EP3353774A1 (en) | 2018-08-01 |
| KR102477724B1 (ko) | 2022-12-15 |
| CN108352158B (zh) | 2022-11-08 |
| US10152960B2 (en) | 2018-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6462095B2 (ja) | 適応雑音消去システムの係数の動的バイアスを含む適応雑音消去のためのシステム及び方法 | |
| CN105453170B (zh) | 用于音频头戴设备的多模自适应消噪的系统及方法 | |
| JP6680772B2 (ja) | 適応ノイズ消去システムの適応を選択的に有効及び無効にするためのシステム並びに方法 | |
| KR102391047B1 (ko) | 개인용 오디오 장치의 적어도 일부를 구현하기 위한 집적 회로 및 개인용 오디오 장치의 트랜스듀서 가까이에서 주변 오디오 사운드를 소거하기 위한 방법 | |
| JP6412557B2 (ja) | アンチノイズレベルをバイアスすることによる適応雑音消去のためのシステム及び方法 | |
| JP6538728B2 (ja) | オーディオ・トランスデューサの性能をトランスデューサの状態の検出に基づいて向上させるためのシステム及び方法 | |
| JP6404905B2 (ja) | ハイブリッド適応雑音消去のためのシステム及び方法 | |
| EP2847760B1 (en) | Error-signal content controlled adaptation of secondary and leakage path models in noise-canceling personal audio devices | |
| US10382864B2 (en) | Systems and methods for providing adaptive playback equalization in an audio device | |
| KR102452748B1 (ko) | 적응적 잡음 소거 시스템에서 피드백 하울링 관리 | |
| CN105981408A (zh) | 用于塑形在适应性噪音消除系统中的音频声道之间的次级路径信息的系统和方法 | |
| US9392364B1 (en) | Virtual microphone for adaptive noise cancellation in personal audio devices | |
| CN108352158B (zh) | 用于分布式自适应噪声消除的系统及方法 | |
| CN108781318A (zh) | 自适应噪声消除系统中的反馈啸声管理 | |
| GB2542648A (en) | Systems and methods for distributed adaptive noise cancellation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20190802 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200319 |
|
| A871 | Explanation of circumstances concerning accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A871 Effective date: 20200319 |
|
| A975 | Report on accelerated examination |
Free format text: JAPANESE INTERMEDIATE CODE: A971005 Effective date: 20200416 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200616 |
|
| A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20200916 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201113 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20210212 |