SE0301273D0 - Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods - Google Patents

Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Info

Publication number
SE0301273D0
SE0301273D0 SE0301273A SE0301273A SE0301273D0 SE 0301273 D0 SE0301273 D0 SE 0301273D0 SE 0301273 A SE0301273 A SE 0301273A SE 0301273 A SE0301273 A SE 0301273A SE 0301273 D0 SE0301273 D0 SE 0301273D0
Authority
SE
Sweden
Prior art keywords
signal
subband
processing based
filter bank
advanced processing
Prior art date
Application number
SE0301273A
Other languages
English (en)
Swedish (sv)
Inventor
Jonas Engdegaard
Lars Villemoes
Original Assignee
Coding Technologies Sweden Ab
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20291180&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE0301273(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Coding Technologies Sweden Ab filed Critical Coding Technologies Sweden Ab
Priority to SE0301273A priority Critical patent/SE0301273D0/xx
Publication of SE0301273D0 publication Critical patent/SE0301273D0/xx
Priority to KR1020057020368A priority patent/KR100717604B1/ko
Priority to EP20193070.8A priority patent/EP3823316B1/en
Priority to CN2004800114628A priority patent/CN1781338B/zh
Priority to EP17173334.8A priority patent/EP3244638B1/en
Priority to EP17173337.1A priority patent/EP3247135B1/en
Priority to EP17173336.3A priority patent/EP3244639B1/en
Priority to DK10180688.3T priority patent/DK2265041T3/da
Priority to ES10180679.2T priority patent/ES2685508T3/es
Priority to HK06101638.0A priority patent/HK1081715B/en
Priority to PL09009940T priority patent/PL2124485T3/pl
Priority to PL10180688T priority patent/PL2265041T3/pl
Priority to DK06026639.2T priority patent/DK1768454T3/da
Priority to ES17173336T priority patent/ES2790886T3/es
Priority to AT04730525T priority patent/ATE444655T1/de
Priority to DK17173338.9T priority patent/DK3244640T3/da
Priority to EP10183592.4A priority patent/EP2265042B1/en
Priority to DK10180679.2T priority patent/DK2265040T3/da
Priority to DE602004023381T priority patent/DE602004023381D1/de
Priority to PL17173338T priority patent/PL3244640T3/pl
Priority to PL17173336T priority patent/PL3244639T3/pl
Priority to EP17173338.9A priority patent/EP3244640B1/en
Priority to ES06026639T priority patent/ES2420764T3/es
Priority to EP06026639.2A priority patent/EP1768454B1/en
Priority to JP2006505342A priority patent/JP4527716B2/ja
Priority to DK17173336.3T priority patent/DK3244639T3/da
Priority to PCT/EP2004/004607 priority patent/WO2004097794A2/en
Priority to ES10180688.3T priority patent/ES2662671T3/es
Priority to DK17173337.1T priority patent/DK3247135T3/da
Priority to PL06026639T priority patent/PL1768454T3/pl
Priority to EP04730525A priority patent/EP1616461B1/en
Priority to ES09009940.9T priority patent/ES2686088T3/es
Priority to EP10180688.3A priority patent/EP2265041B1/en
Priority to CN2007100890978A priority patent/CN101071569B/zh
Priority to ES17173337T priority patent/ES2822163T3/es
Priority to PL10180679T priority patent/PL2265040T3/pl
Priority to PL17173333T priority patent/PL3244637T3/pl
Priority to DK17173333.0T priority patent/DK3244637T3/da
Priority to EP09009940.9A priority patent/EP2124485B1/en
Priority to PL17173337T priority patent/PL3247135T3/pl
Priority to ES17173334T priority patent/ES2749575T3/es
Priority to CN2010101238339A priority patent/CN101819777B/zh
Priority to PL17173334T priority patent/PL3244638T3/pl
Priority to DK09009940.9T priority patent/DK2124485T3/da
Priority to ES17173338T priority patent/ES2790860T3/es
Priority to ES17173333T priority patent/ES2789575T3/es
Priority to EP17173333.0A priority patent/EP3244637B1/en
Priority to DK17173334.8T priority patent/DK3244638T3/da
Priority to EP10180679.2A priority patent/EP2265040B1/en
Priority to US11/260,659 priority patent/US7487097B2/en
Priority to US11/698,611 priority patent/US7564978B2/en
Priority to JP2007092012A priority patent/JP4602375B2/ja
Priority to HK07107056.9A priority patent/HK1099882B/en
Priority to HK11101511.5A priority patent/HK1147591B/xx
Priority to HK18104577.3A priority patent/HK1245554B/en
Priority to HK18104574.6A priority patent/HK1245552B/en
Priority to HK18104575.5A priority patent/HK1245553B/en
Priority to HK18104648.8A priority patent/HK1245555B/en
Priority to HK18104649.7A priority patent/HK1245556B/en

Links

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
    • G10L19/02—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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • 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 
    • 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
    • G10L19/0204—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 using subband decomposition
    • 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
    • H04S2420/03—Application of parametric coding in stereophonic audio systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computer Hardware Design (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Stereophonic System (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Picture Signal Circuits (AREA)
  • Color Television Image Signal Generators (AREA)
  • Epoxy Resins (AREA)
  • Networks Using Active Elements (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Wind Motors (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
SE0301273A 2003-04-30 2003-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods SE0301273D0 (sv)

Priority Applications (59)

Application Number Priority Date Filing Date Title
SE0301273A SE0301273D0 (sv) 2003-04-30 2003-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
KR1020057020368A KR100717604B1 (ko) 2003-04-30 2004-04-30 복소 지수 방식으로 변조된 필터뱅크에 기초한 개선된프로세싱 및 적응형 시간신호 방법
EP20193070.8A EP3823316B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
CN2004800114628A CN1781338B (zh) 2003-04-30 2004-04-30 基于复指数调制的滤波器组的高级处理和自适应时间信号传送方法
EP17173334.8A EP3244638B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank
EP17173337.1A EP3247135B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank
EP17173336.3A EP3244639B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
DK10180688.3T DK2265041T3 (da) 2003-04-30 2004-04-30 Avanceret behandling baseret på en kompleks-eksponentiel-moduleret filterbank og adaptive tidssignaleringsfremgangsmåder
ES10180679.2T ES2685508T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros modulado exponencialmente complejo y procedimientos de señalización de tiempos adaptativos
HK06101638.0A HK1081715B (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential modulated filterbank and adaptive time signalling methods
PL09009940T PL2124485T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie oparte o zespolony-wykładniczo-modulowany bank filtrów i sposoby sygnalizowania adaptacyjnego w czasie
PL10180688T PL2265041T3 (pl) 2003-04-30 2004-04-30 Zaawansowane procesowanie oparte o zespolony-wykładniczo-modulowany zespół filtrów i sposoby sygnalizowania adaptacyjnego w czasie
DK06026639.2T DK1768454T3 (da) 2003-04-30 2004-04-30 Parametrisk kodning af et audiosignals stereobillede
ES17173336T ES2790886T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros con modulación exponencial compleja y métodos para señalizar el tiempo adaptativos
AT04730525T ATE444655T1 (de) 2003-04-30 2004-04-30 Erweiterte verarbeitung auf der basis einer mit komplexer exponentialfunktion modulierten filterbank und adaptive zeitsignalisierungsverfahren
DK17173338.9T DK3244640T3 (da) 2003-04-30 2004-04-30 Advanceret behandling baseret på en kompleks-eksponential-moduleret filterbank
EP10183592.4A EP2265042B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
DK10180679.2T DK2265040T3 (da) 2003-04-30 2004-04-30 Avanceret behandling baseret på en kompleks-eksponentiel-moduleret filterbank og adaptive tidssignaleringsfremgangsmåder
DE602004023381T DE602004023381D1 (de) 2003-04-30 2004-04-30 Mplexer exponentialfunktion modulierten filterbank und adaptive zeitsignalisierungsverfahren
PL17173338T PL3244640T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie w oparciu o bank filtrów modulowany zespoloną funkcją wykładniczą
PL17173336T PL3244639T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie na podstawie modulowanego zespoloną funkcją wykładniczą banku filtrów i adaptacyjne sposoby sygnalizowania czasu
EP17173338.9A EP3244640B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank
ES06026639T ES2420764T3 (es) 2003-04-30 2004-04-30 Codificación paramétrica de la imagen estéreo de una señal de audio
EP06026639.2A EP1768454B1 (en) 2003-04-30 2004-04-30 Parametric coding of the stereo image of an audio signal
JP2006505342A JP4527716B2 (ja) 2003-04-30 2004-04-30 複素指数変調フィルタバンクを基にした新型プロセッシングおよび適応型時間信号伝達方法
DK17173336.3T DK3244639T3 (da) 2003-04-30 2004-04-30 Advanceret behandling baseret på en kompleks-eksponential-moduleret filterbank og adaptive tidssignaleringsfremgangsmåder
PCT/EP2004/004607 WO2004097794A2 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
ES10180688.3T ES2662671T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros modulado exponencialmente complejo y procedimientos de señalización de tiempos adaptativos
DK17173337.1T DK3247135T3 (da) 2003-04-30 2004-04-30 Advanceret behandling baseret på en kompleks-eksponentiel-moduleret filterbank
PL06026639T PL1768454T3 (pl) 2003-04-30 2004-04-30 Kodowanie parametryczne obrazu stereo sygnału audio
EP04730525A EP1616461B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
ES09009940.9T ES2686088T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros con modulación exponencial compleja y procedimientos de señalización temporal adaptativos
EP10180688.3A EP2265041B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
CN2007100890978A CN101071569B (zh) 2003-04-30 2004-04-30 基于复指数调制的滤波器组的高级处理和自适应时间信号传送方法
ES17173337T ES2822163T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros con modulación exponencial compleja
PL10180679T PL2265040T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie oparte o zespolony-wykładniczo-modulowany bank filtrów i sposoby sygnalizowania adaptacyjnego w czasie
PL17173333T PL3244637T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie na podstawie modulowanego zespoloną funkcją wykładniczą banku filtrów
DK17173333.0T DK3244637T3 (da) 2003-04-30 2004-04-30 Advanceret behandling baseret på en kompleks-eksponential-moduleret filterbank
EP09009940.9A EP2124485B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
PL17173337T PL3247135T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie oparte na banku filtrów modulowanym zespoloną funkcją wykładniczą
ES17173334T ES2749575T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros complejo, exponencial y modulado
CN2010101238339A CN101819777B (zh) 2003-04-30 2004-04-30 基于复指数调制的滤波器组的高级处理和自适应时间信号传送方法
PL17173334T PL3244638T3 (pl) 2003-04-30 2004-04-30 Zaawansowane przetwarzanie oparte o zespolony- wykładniczo-modulowany bank filtrów
DK09009940.9T DK2124485T3 (da) 2003-04-30 2004-04-30 Avanceret behandling baseret på en kompleks-eksponentiel-moduleret filterbank og adaptive tidssignaleringsfremgangsmåder
ES17173338T ES2790860T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros con modulación exponencial compleja
ES17173333T ES2789575T3 (es) 2003-04-30 2004-04-30 Procesamiento avanzado basado en un banco de filtros con modulación exponencial compleja
EP17173333.0A EP3244637B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank
DK17173334.8T DK3244638T3 (da) 2003-04-30 2004-04-30 Advanceret behandling baseret på en moduleret filterbank med kompleks eksponentialfunktion
EP10180679.2A EP2265040B1 (en) 2003-04-30 2004-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
US11/260,659 US7487097B2 (en) 2003-04-30 2005-10-26 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
US11/698,611 US7564978B2 (en) 2003-04-30 2007-01-26 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
JP2007092012A JP4602375B2 (ja) 2003-04-30 2007-03-30 ステレオ信号を符号化する符号化装置、符号化方法、復号器、復号化方法および符号化方法又は復号化方法を実行させるためのコンピュータプログラム
HK07107056.9A HK1099882B (en) 2003-04-30 2007-07-03 Parametric coding of the stereo image of an audio signal
HK11101511.5A HK1147591B (en) 2003-04-30 2011-02-16 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
HK18104577.3A HK1245554B (en) 2003-04-30 2018-04-09 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
HK18104574.6A HK1245552B (en) 2003-04-30 2018-04-09 Advanced processing based on a complex-exponential-modulated filterbank
HK18104575.5A HK1245553B (en) 2003-04-30 2018-04-09 Advanced processing based on a complex-exponential-modulated filterbank
HK18104648.8A HK1245555B (en) 2003-04-30 2018-04-10 Advanced processing based on a complex-exponential-modulated filterbank
HK18104649.7A HK1245556B (en) 2003-04-30 2018-04-10 Advanced processing based on a complex-exponential-modulated filterbank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0301273A SE0301273D0 (sv) 2003-04-30 2003-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Publications (1)

Publication Number Publication Date
SE0301273D0 true SE0301273D0 (sv) 2003-04-30

Family

ID=20291180

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0301273A SE0301273D0 (sv) 2003-04-30 2003-04-30 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods

Country Status (12)

Country Link
US (2) US7487097B2 (da)
EP (12) EP3244640B1 (da)
JP (2) JP4527716B2 (da)
KR (1) KR100717604B1 (da)
CN (3) CN101071569B (da)
AT (1) ATE444655T1 (da)
DE (1) DE602004023381D1 (da)
DK (9) DK3244638T3 (da)
ES (9) ES2790886T3 (da)
PL (9) PL2265040T3 (da)
SE (1) SE0301273D0 (da)
WO (1) WO2004097794A2 (da)

Families Citing this family (62)

* Cited by examiner, † Cited by third party
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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
EP1672618B1 (en) * 2003-10-07 2010-12-15 Panasonic Corporation Method for deciding time boundary for encoding spectrum envelope and frequency resolution
KR20070065401A (ko) * 2004-09-23 2007-06-22 코닌클리케 필립스 일렉트로닉스 엔.브이. 오디오 데이터를 처리하는 시스템 및 방법, 프로그램구성요소, 및 컴퓨터-판독가능 매체
KR100880646B1 (ko) * 2005-08-30 2009-01-30 엘지전자 주식회사 오디오 신호의 인코딩 및 디코딩 장치, 및 방법
CA2620627C (en) 2005-08-30 2011-03-15 Lg Electronics Inc. Apparatus for encoding and decoding audio signal and method thereof
CN101253555B (zh) 2005-09-01 2011-08-24 松下电器产业株式会社 多声道音频信号处理装置及多声道音频信号处理方法
EP1927265A2 (en) 2005-09-13 2008-06-04 Koninklijke Philips Electronics N.V. A method of and a device for generating 3d sound
WO2007080211A1 (en) * 2006-01-09 2007-07-19 Nokia Corporation Decoding of binaural audio signals
KR100803212B1 (ko) 2006-01-11 2008-02-14 삼성전자주식회사 스케일러블 채널 복호화 방법 및 장치
US7711552B2 (en) * 2006-01-27 2010-05-04 Dolby International Ab Efficient filtering with a complex modulated filterbank
KR100773560B1 (ko) 2006-03-06 2007-11-05 삼성전자주식회사 스테레오 신호 생성 방법 및 장치
EP1994796A1 (en) * 2006-03-15 2008-11-26 Dolby Laboratories Licensing Corporation Binaural rendering using subband filters
EP1999997B1 (en) * 2006-03-28 2011-04-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Enhanced method for signal shaping in multi-channel audio reconstruction
ATE527833T1 (de) 2006-05-04 2011-10-15 Lg Electronics Inc Verbesserung von stereo-audiosignalen mittels neuabmischung
KR100763920B1 (ko) 2006-08-09 2007-10-05 삼성전자주식회사 멀티채널 신호를 모노 또는 스테레오 신호로 압축한 입력신호를 2채널의 바이노럴 신호로 복호화하는 방법 및 장치
JP5232791B2 (ja) 2006-10-12 2013-07-10 エルジー エレクトロニクス インコーポレイティド ミックス信号処理装置及びその方法
USRE50158E1 (en) 2006-10-25 2024-10-01 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
PL3848928T3 (pl) 2006-10-25 2023-07-17 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Urządzenie i sposób do generowania wartości podpasm audio o wartościach zespolonych
JP5103880B2 (ja) * 2006-11-24 2012-12-19 富士通株式会社 復号化装置および復号化方法
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