KR102114648B1 - 오디오 프로세싱 시스템에서 신호 역상관 - Google Patents

오디오 프로세싱 시스템에서 신호 역상관 Download PDF

Info

Publication number
KR102114648B1
KR102114648B1 KR1020157021921A KR20157021921A KR102114648B1 KR 102114648 B1 KR102114648 B1 KR 102114648B1 KR 1020157021921 A KR1020157021921 A KR 1020157021921A KR 20157021921 A KR20157021921 A KR 20157021921A KR 102114648 B1 KR102114648 B1 KR 102114648B1
Authority
KR
South Korea
Prior art keywords
decorrelation
audio data
channel
audio
information
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
Application number
KR1020157021921A
Other languages
English (en)
Korean (ko)
Other versions
KR20150106949A (ko
Inventor
비네이 멜코테
쿠안-치에 옌
그랜트 에이. 데이비드슨
매튜 펠러
마크 에스. 빈톤
비벡 쿠마
Original Assignee
돌비 레버러토리즈 라이쎈싱 코오포레이션
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 돌비 레버러토리즈 라이쎈싱 코오포레이션 filed Critical 돌비 레버러토리즈 라이쎈싱 코오포레이션
Publication of KR20150106949A publication Critical patent/KR20150106949A/ko
Application granted granted Critical
Publication of KR102114648B1 publication Critical patent/KR102114648B1/ko
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • 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
    • G10L19/02—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 using spectral analysis, e.g. transform vocoders or subband vocoders
    • 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
    • G10L19/04—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 using predictive techniques
    • G10L19/06—Determination or coding of the spectral characteristics, e.g. of the short-term prediction coefficients
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/06—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being correlation coefficients
    • 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 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Telephonic Communication Services (AREA)
KR1020157021921A 2013-02-14 2014-01-22 오디오 프로세싱 시스템에서 신호 역상관 Active KR102114648B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361764837P 2013-02-14 2013-02-14
US61/764,837 2013-02-14
PCT/US2014/012453 WO2014126682A1 (en) 2013-02-14 2014-01-22 Signal decorrelation in an audio processing system

Publications (2)

Publication Number Publication Date
KR20150106949A KR20150106949A (ko) 2015-09-22
KR102114648B1 true KR102114648B1 (ko) 2020-05-26

Family

ID=50064800

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020157021921A Active KR102114648B1 (ko) 2013-02-14 2014-01-22 오디오 프로세싱 시스템에서 신호 역상관

Country Status (11)

Country Link
US (1) US9830916B2 (https=)
EP (1) EP2956933B1 (https=)
JP (1) JP6038355B2 (https=)
KR (1) KR102114648B1 (https=)
CN (1) CN104995676B (https=)
BR (1) BR112015018981B1 (https=)
ES (1) ES2613478T3 (https=)
IN (1) IN2015MN01954A (https=)
RU (1) RU2614381C2 (https=)
TW (1) TWI618050B (https=)
WO (1) WO2014126682A1 (https=)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI618050B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備
WO2014126688A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
EP2956935B1 (en) * 2013-02-14 2017-01-04 Dolby Laboratories Licensing Corporation Controlling the inter-channel coherence of upmixed audio signals
TWI640843B (zh) * 2014-04-02 2018-11-11 Kla-Tencor Corporation 用於產生遮罩之高密度對位映圖的方法、系統及電腦程式產品
EP3067886A1 (en) 2015-03-09 2016-09-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder for encoding a multichannel signal and audio decoder for decoding an encoded audio signal
EP3179744B1 (en) * 2015-12-08 2018-01-31 Axis AB Method, device and system for controlling a sound image in an audio zone
CN105702263B (zh) * 2016-01-06 2019-08-30 清华大学 语音重放检测方法和装置
CN105931648B (zh) * 2016-06-24 2019-05-03 百度在线网络技术（北京）有限公司 音频信号解混响方法和装置
CN107895580B (zh) * 2016-09-30 2021-06-01 华为技术有限公司 一种音频信号的重建方法和装置
CN110024421B (zh) * 2016-11-23 2020-12-25 瑞典爱立信有限公司 用于自适应控制去相关滤波器的方法和装置
US10979844B2 (en) * 2017-03-08 2021-04-13 Dts, Inc. Distributed audio virtualization systems
US10019981B1 (en) 2017-06-02 2018-07-10 Apple Inc. Active reverberation augmentation
EP3573058B1 (en) * 2018-05-23 2021-02-24 Harman Becker Automotive Systems GmbH Dry sound and ambient sound separation
CN111107024B (zh) * 2018-10-25 2022-01-28 航天科工惯性技术有限公司 时间与频率混合编码的防错解码方法
CN109557509B (zh) * 2018-11-23 2020-08-11 安徽四创电子股份有限公司 一种用于改善脉间干扰的双脉冲信号合成器
CN109672946B (zh) * 2019-02-15 2023-12-15 深圳市昊一源科技有限公司 一种无线通话系统、转发设备、终端设备及转发方法
US11195541B2 (en) * 2019-05-08 2021-12-07 Samsung Electronics Co., Ltd Transformer with gaussian weighted self-attention for speech enhancement
CN110267064B (zh) * 2019-06-12 2021-11-12 百度在线网络技术（北京）有限公司 音频播放状态处理方法、装置、设备及存储介质
CN110740404B (zh) * 2019-09-27 2020-12-25 广州励丰文化科技股份有限公司 一种音频相关性的处理方法及音频处理装置
CN110740416B (zh) * 2019-09-27 2021-04-06 广州励丰文化科技股份有限公司 一种音频信号处理方法及装置
WO2022074202A2 (en) 2020-10-09 2022-04-14 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method, or computer program for processing an encoded audio scene using a parameter smoothing
MX2023003962A (es) 2020-10-09 2023-05-25 Fraunhofer Ges Forschung Aparato, metodo, o programa de computadora para procesar una escena de audio codificada utilizando una conversion de parametros.
KR20230084244A (ko) 2020-10-09 2023-06-12 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 대역폭 확장을 사용하여, 인코딩된 오디오 장면을 프로세싱하기 위한 장치, 방법, 또는 컴퓨터 프로그램
EP4443911A4 (en) * 2021-12-03 2025-02-19 Beijing Xiaomi Mobile Software Co., Ltd. STEREO AUDIO SIGNAL PROCESSING METHOD, AND DEVICE/STORAGE MEDIUM/APPARATUS
GB2630112A (en) * 2023-05-17 2024-11-20 Sony Interactive Entertainment Europe Ltd A method for decorrelating a set of simulated audio signals
WO2025160833A1 (zh) * 2024-01-31 2025-08-07 北京小米移动软件有限公司 编解码方法、装置以及存储介质

Family Cites Families (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8308843D0 (en) 1983-03-30 1983-05-11 Clark A P Apparatus for adjusting receivers of data transmission channels
CA1321645C (en) 1988-09-28 1993-08-24 Akira Ichikawa Method and system for voice coding based on vector quantization
JP2001519995A (ja) 1998-02-13 2001-10-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ サラウンド音声再生システム、音声／視覚再生システム、サラウンド信号処理ユニット、および入力サラウンド信号を処理する方法
US6175631B1 (en) 1999-07-09 2001-01-16 Stephen A. Davis Method and apparatus for decorrelating audio signals
CA2992051C (en) 2004-03-01 2019-01-22 Dolby Laboratories Licensing Corporation Reconstructing audio signals with multiple decorrelation techniques and differentially coded parameters
US7218665B2 (en) 2003-04-25 2007-05-15 Bae Systems Information And Electronic Systems Integration Inc. Deferred decorrelating decision-feedback detector for supersaturated communications
SE0301273D0 (sv) 2003-04-30 2003-04-30 Coding Technologies Sweden Ab Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
US20090299756A1 (en) 2004-03-01 2009-12-03 Dolby Laboratories Licensing Corporation Ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners
KR101135726B1 (ko) * 2004-04-05 2012-04-16 코닌클리케 필립스 일렉트로닉스 엔.브이. 인코더, 디코더, 인코딩 방법, 디코딩 방법 및 기록 매체
SE0400998D0 (sv) 2004-04-16 2004-04-16 Cooding Technologies Sweden Ab Method for representing multi-channel audio signals
US8793125B2 (en) 2004-07-14 2014-07-29 Koninklijke Philips Electronics N.V. Method and device for decorrelation and upmixing of audio channels
TWI393121B (zh) * 2004-08-25 2013-04-11 杜比實驗室特許公司 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
CN101040322A (zh) 2004-10-15 2007-09-19 皇家飞利浦电子股份有限公司 处理音频数据以便生成交混回响的系统和方法
SE0402649D0 (sv) 2004-11-02 2004-11-02 Coding Tech Ab Advanced methods of creating orthogonal signals
US7787631B2 (en) 2004-11-30 2010-08-31 Agere Systems Inc. Parametric coding of spatial audio with cues based on transmitted channels
EP1691348A1 (en) * 2005-02-14 2006-08-16 Ecole Polytechnique Federale De Lausanne Parametric joint-coding of audio sources
US7961890B2 (en) 2005-04-15 2011-06-14 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung, E.V. Multi-channel hierarchical audio coding with compact side information
CA2610430C (en) 2005-06-03 2016-02-23 Dolby Laboratories Licensing Corporation Channel reconfiguration with side information
US7966191B2 (en) 2005-07-14 2011-06-21 Koninklijke Philips Electronics N.V. Method and apparatus for generating a number of output audio channels
EP1906706B1 (en) 2005-07-15 2009-11-25 Panasonic Corporation Audio decoder
RU2383942C2 (ru) 2005-08-30 2010-03-10 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ и устройство для декодирования аудиосигнала
US7761303B2 (en) 2005-08-30 2010-07-20 Lg Electronics Inc. Slot position coding of TTT syntax of spatial audio coding application
US7974713B2 (en) 2005-10-12 2011-07-05 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Temporal and spatial shaping of multi-channel audio signals
US7536299B2 (en) * 2005-12-19 2009-05-19 Dolby Laboratories Licensing Corporation Correlating and decorrelating transforms for multiple description coding systems
JP2007178684A (ja) * 2005-12-27 2007-07-12 Matsushita Electric Ind Co Ltd マルチチャンネルオーディオ復号装置
TWI469133B (zh) 2006-01-19 2015-01-11 Lg Electronics Inc 媒體訊號處理方法及裝置
TW200742275A (en) 2006-03-21 2007-11-01 Dolby Lab Licensing Corp Low bit rate audio encoding and decoding in which multiple channels are represented by fewer channels and auxiliary information
KR101001835B1 (ko) 2006-03-28 2010-12-15 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. 멀티 채널 오디오 재구성에서 신호 셰이핑을 위한 개선 방법
ATE448638T1 (de) 2006-04-13 2009-11-15 Fraunhofer Ges Forschung Audiosignaldekorrelator
US8379868B2 (en) 2006-05-17 2013-02-19 Creative Technology Ltd Spatial audio coding based on universal spatial cues
EP1883067A1 (en) 2006-07-24 2008-01-30 Deutsche Thomson-Brandt Gmbh Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream
EP2070392A2 (en) 2006-09-14 2009-06-17 Koninklijke Philips Electronics N.V. Sweet spot manipulation for a multi-channel signal
RU2406166C2 (ru) 2007-02-14 2010-12-10 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способы и устройства кодирования и декодирования основывающихся на объектах ориентированных аудиосигналов
DE102007018032B4 (de) 2007-04-17 2010-11-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Erzeugung dekorrelierter Signale
US8015368B2 (en) 2007-04-20 2011-09-06 Siport, Inc. Processor extensions for accelerating spectral band replication
CA2684975C (en) 2007-04-26 2016-08-02 Dolby Sweden Ab Apparatus and method for synthesizing an output signal
ES2358786T3 (es) 2007-06-08 2011-05-13 Dolby Laboratories Licensing Corporation Derivación híbrida de canales de audio de sonido envolvente combinando de manera controlable componentes de señal de sonido ambiente y con decodificación matricial.
US8046214B2 (en) 2007-06-22 2011-10-25 Microsoft Corporation Low complexity decoder for complex transform coding of multi-channel sound
US8064624B2 (en) 2007-07-19 2011-11-22 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Method and apparatus for generating a stereo signal with enhanced perceptual quality
US20100040243A1 (en) 2008-08-14 2010-02-18 Johnston James D Sound Field Widening and Phase Decorrelation System and Method
EP2209114B1 (en) 2007-10-31 2014-05-14 Panasonic Corporation Speech coding/decoding apparatus/method
US20090281803A1 (en) 2008-05-12 2009-11-12 Broadcom Corporation Dispersion filtering for speech intelligibility enhancement
EP2144229A1 (en) 2008-07-11 2010-01-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Efficient use of phase information in audio encoding and decoding
JP5326465B2 (ja) 2008-09-26 2013-10-30 富士通株式会社 オーディオ復号方法、装置、及びプログラム
TWI413109B (zh) 2008-10-01 2013-10-21 Dolby Lab Licensing Corp 用於上混系統之解相關器
EP2214162A1 (en) 2009-01-28 2010-08-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Upmixer, method and computer program for upmixing a downmix audio signal
EP2214165A3 (en) 2009-01-30 2010-09-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus, method and computer program for manipulating an audio signal comprising a transient event
ATE526662T1 (de) 2009-03-26 2011-10-15 Fraunhofer Ges Forschung Vorrichtung und verfahren zur änderung eines audiosignals
US8497467B2 (en) 2009-04-13 2013-07-30 Telcordia Technologies, Inc. Optical filter control
MX2011013829A (es) 2009-06-24 2012-03-07 Fraunhofer Ges Forschung Decodificador de señales de audio, metodo para decodificar una señal de audio y programa de computacion que utiliza etapas en cascada de procesamiento de objetos de audio.
GB2465047B (en) 2009-09-03 2010-09-22 Peter Graham Craven Prediction of signals
MX2012005723A (es) 2009-12-07 2012-06-13 Dolby Lab Licensing Corp Metodo y aparato para decodificar un cuadrado de una señal de audio digital codificada y medio de almacenamiento que graba un programa de instrucciones.
EP2360681A1 (en) 2010-01-15 2011-08-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for extracting a direct/ambience signal from a downmix signal and spatial parametric information
TWI444989B (zh) 2010-01-22 2014-07-11 Dolby Lab Licensing Corp 針對改良多通道上混使用多通道解相關之技術
JP5299327B2 (ja) 2010-03-17 2013-09-25 ソニー株式会社 音声処理装置、音声処理方法、およびプログラム
EP2375409A1 (en) * 2010-04-09 2011-10-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction
CA2992917C (en) * 2010-04-09 2020-05-26 Dolby International Ab Mdct-based complex prediction stereo coding
TWI516138B (zh) 2010-08-24 2016-01-01 杜比國際公司 從二聲道音頻訊號決定參數式立體聲參數之系統與方法及其電腦程式產品
CN104347079B (zh) 2010-08-24 2017-11-28 Lg电子株式会社 处理音频信号的方法和设备
SG2014006738A (en) 2010-08-25 2014-03-28 Fraunhofer Ges Forschung An apparatus for encoding an audio signal having a plurality of channels
US8908874B2 (en) 2010-09-08 2014-12-09 Dts, Inc. Spatial audio encoding and reproduction
EP2477188A1 (en) 2011-01-18 2012-07-18 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Encoding and decoding of slot positions of events in an audio signal frame
JP5805796B2 (ja) 2011-03-18 2015-11-10 フラウンホーファーゲゼルシャフトツール フォルデルング デル アンゲヴァンテン フォルシユング エー．フアー． 柔軟なコンフィギュレーション機能性を有するオーディオエンコーダおよびデコーダ
CN102903368B (zh) * 2011-07-29 2017-04-12 杜比实验室特许公司 用于卷积盲源分离的方法和设备
WO2013017435A1 (en) * 2011-08-04 2013-02-07 Dolby International Ab Improved fm stereo radio receiver by using parametric stereo
US8527264B2 (en) 2012-01-09 2013-09-03 Dolby Laboratories Licensing Corporation Method and system for encoding audio data with adaptive low frequency compensation
EP2704142B1 (en) 2012-08-27 2015-09-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Apparatus and method for reproducing an audio signal, apparatus and method for generating a coded audio signal, computer program and coded audio signal
TWI618050B (zh) 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ATSC Standard: Digital Audio Compression (AC-3, E-AC-3). Advanced Television Systems Committee. Doc.A/52:2012. 2012.12.17.*
Fielder, et al. Introduction to Dolby digital plus, an enhancement to the Dolby digital coding system. Audio Engineering Society Convention 117. 2004.10.28-31.*
Osamu Shimada, et al. A Low Power SBR Algorithm for the MPEG-4 Audio Standard and its DSP Implementation. AES 116th Convention. 2004.05.08.*

Also Published As

Publication number Publication date
US9830916B2 (en) 2017-11-28
HK1213686A1 (en) 2016-07-08
IN2015MN01954A (https=) 2015-08-28
JP6038355B2 (ja) 2016-12-07
US20150380000A1 (en) 2015-12-31
KR20150106949A (ko) 2015-09-22
TWI618050B (zh) 2018-03-11
WO2014126682A1 (en) 2014-08-21
CN104995676B (zh) 2018-03-30
EP2956933A1 (en) 2015-12-23
BR112015018981A2 (pt) 2017-07-18
RU2015133287A (ru) 2017-02-21
EP2956933B1 (en) 2016-11-16
ES2613478T3 (es) 2017-05-24
JP2016510433A (ja) 2016-04-07
RU2614381C2 (ru) 2017-03-24
CN104995676A (zh) 2015-10-21
BR112015018981B1 (pt) 2022-02-01
TW201443877A (zh) 2014-11-16

Similar Documents

Publication Publication Date Title
KR102114648B1 (ko) 오디오 프로세싱 시스템에서 신호 역상관
KR101729930B1 (ko) 업믹스된 오디오 신호들의 채널간 코히어런스를 제어하기 위한 방법
KR101724319B1 (ko) 추정된 공간 파라미터들을 사용한 오디오 신호 강화
US9830917B2 (en) Methods for audio signal transient detection and decorrelation control
HK1218674B (en) Audio signal enhancement using estimated spatial parameters
HK1213687B (en) Controlling the inter-channel coherence of upmixed audio signals
HK1213686B (en) Signal decorrelation in an audio processing system
WO2014126684A1 (en) Time-varying filters for generating decorrelation signals

Legal Events

Date Code Title Description
A201 Request for examination
AMND Amendment
PA0105 International application

Patent event date: 20150813

Patent event code: PA01051R01D

Comment text: International Patent Application

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20150813

Comment text: Request for Examination of Application

PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20160620

Patent event code: PE09021S01D

AMND Amendment
E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 20170118

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20160620

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

X091 Application refused [patent]
AMND Amendment
PX0901 Re-examination

Patent event code: PX09011S01I

Patent event date: 20170118

Comment text: Decision to Refuse Application

Patent event code: PX09012R01I

Patent event date: 20160822

Comment text: Amendment to Specification, etc.

Patent event code: PX09012R01I

Patent event date: 20150813

Comment text: Amendment to Specification, etc.

PX0601 Decision of rejection after re-examination

Comment text: Decision to Refuse Application

Patent event code: PX06014S01D

Patent event date: 20170516

Comment text: Amendment to Specification, etc.

Patent event code: PX06012R01I

Patent event date: 20170419

Comment text: Decision to Refuse Application

Patent event code: PX06011S01I

Patent event date: 20170118

Comment text: Amendment to Specification, etc.

Patent event code: PX06012R01I

Patent event date: 20160822

Comment text: Notification of reason for refusal

Patent event code: PX06013S01I

Patent event date: 20160620

Comment text: Amendment to Specification, etc.

Patent event code: PX06012R01I

Patent event date: 20150813

J201 Request for trial against refusal decision
PJ0201 Trial against decision of rejection

Patent event date: 20170616

Comment text: Request for Trial against Decision on Refusal

Patent event code: PJ02012R01D

Patent event date: 20170516

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Patent event date: 20170118

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Appeal kind category: Appeal against decision to decline refusal

Appeal identifier: 2017101002929

Request date: 20170616

J301 Trial decision

Free format text: TRIAL NUMBER: 2017101002929; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20170616

Effective date: 20190325

PJ1301 Trial decision

Patent event code: PJ13011S01D

Patent event date: 20190325

Comment text: Trial Decision on Objection to Decision on Refusal

Appeal kind category: Appeal against decision to decline refusal

Request date: 20170616

Decision date: 20190325

Appeal identifier: 2017101002929

PS0901 Examination by remand of revocation
S901 Examination by remand of revocation
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20190412

Patent event code: PE09021S01D

PS0601 Decision to reject again after remand of revocation

Patent event date: 20190806

Comment text: Decision to Refuse Application

Patent event code: PS06013S01D

Patent event date: 20190412

Comment text: Notification of reason for refusal

Patent event code: PS06012S01I

Patent event date: 20190325

Comment text: Notice of Trial Decision (Remand of Revocation)

Patent event code: PS06011S01I

Patent event date: 20160620

Comment text: Notification of reason for refusal

Patent event code: PS06012S01I

S601 Decision to reject again after remand of revocation
J201 Request for trial against refusal decision
PJ0201 Trial against decision of rejection

Patent event date: 20190905

Comment text: Request for Trial against Decision on Refusal

Patent event code: PJ02012R01D

Patent event date: 20190806

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Patent event date: 20170516

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Patent event date: 20170118

Comment text: Decision to Refuse Application

Patent event code: PJ02011S01I

Appeal kind category: Appeal against decision to decline refusal

Appeal identifier: 2019101002981

Request date: 20190905

J301 Trial decision

Free format text: TRIAL NUMBER: 2019101002981; TRIAL DECISION FOR APPEAL AGAINST DECISION TO DECLINE REFUSAL REQUESTED 20190905

Effective date: 20200210

PJ1301 Trial decision

Patent event code: PJ13011S01D

Patent event date: 20200210

Comment text: Trial Decision on Objection to Decision on Refusal

Appeal kind category: Appeal against decision to decline refusal

Request date: 20190905

Decision date: 20200210

Appeal identifier: 2019101002981

PS0901 Examination by remand of revocation

Patent event code: PS09011S01I

Patent event date: 20190325

Comment text: Notice of Trial Decision (Remand of Revocation)

S901 Examination by remand of revocation
GRNO Decision to grant (after opposition)
PS0701 Decision of registration after remand of revocation

Patent event date: 20200218

Patent event code: PS07012S01D

Comment text: Decision to Grant Registration

Patent event date: 20200210

Patent event code: PS07011S01I

Comment text: Notice of Trial Decision (Remand of Revocation)

Patent event date: 20190325

Patent event code: PS07011S01I

Comment text: Notice of Trial Decision (Remand of Revocation)

GRNT Written decision to grant
PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 20200519

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 20200520

End annual number: 3

Start annual number: 1

PG1601 Publication of registration
PR1001 Payment of annual fee

Payment date: 20240424

Start annual number: 5

End annual number: 5