ATE185016T1 - Vorrichtung und verfahren zur datenkompression - Google Patents

Vorrichtung und verfahren zur datenkompression

Info

Publication number
ATE185016T1
ATE185016T1 AT93300609T AT93300609T ATE185016T1 AT E185016 T1 ATE185016 T1 AT E185016T1 AT 93300609 T AT93300609 T AT 93300609T AT 93300609 T AT93300609 T AT 93300609T AT E185016 T1 ATE185016 T1 AT E185016T1
Authority
AT
Austria
Prior art keywords
band
signal
bands
quantizing bits
dependent
Prior art date
Application number
AT93300609T
Other languages
English (en)
Inventor
Kyoya Tsutsui
Kenzo Akagiri
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Application granted granted Critical
Publication of ATE185016T1 publication Critical patent/ATE185016T1/de

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/50Conversion to or from non-linear codes, e.g. companding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/665Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00007Time or data compression or expansion
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10Digital recording or reproducing
    • G11B20/10527Audio or video recording; Data buffering arrangements
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/60General implementation details not specific to a particular type of compression
    • H03M7/6011Encoder aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
AT93300609T 1992-01-29 1993-01-28 Vorrichtung und verfahren zur datenkompression ATE185016T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04036952A JP3134455B2 (ja) 1992-01-29 1992-01-29 高能率符号化装置及び方法

Publications (1)

Publication Number Publication Date
ATE185016T1 true ATE185016T1 (de) 1999-10-15

Family

ID=12484087

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93300609T ATE185016T1 (de) 1992-01-29 1993-01-28 Vorrichtung und verfahren zur datenkompression

Country Status (12)

Country Link
US (1) US5301205A (de)
EP (1) EP0554081B1 (de)
JP (1) JP3134455B2 (de)
KR (1) KR100288460B1 (de)
CN (1) CN1046608C (de)
AT (1) ATE185016T1 (de)
AU (1) AU656452B2 (de)
CA (1) CA2088202C (de)
DE (1) DE69326484T2 (de)
ES (1) ES2138992T3 (de)
MY (1) MY138517A (de)
TW (1) TW200586B (de)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5479562A (en) * 1989-01-27 1995-12-26 Dolby Laboratories Licensing Corporation Method and apparatus for encoding and decoding audio information
ATE195618T1 (de) * 1991-09-30 2000-09-15 Sony Corp Verfahren und einrichtung zur audiodatenkompression
JP3278900B2 (ja) * 1992-05-07 2002-04-30 ソニー株式会社 データ符号化装置及び方法
JP3153933B2 (ja) * 1992-06-16 2001-04-09 ソニー株式会社 データ符号化装置及び方法並びにデータ復号化装置及び方法
JP3189401B2 (ja) * 1992-07-29 2001-07-16 ソニー株式会社 音声データ符号化方法及び音声データ符号化装置
JP3127600B2 (ja) * 1992-09-11 2001-01-29 ソニー株式会社 ディジタル信号復号化装置及び方法
JP3343962B2 (ja) * 1992-11-11 2002-11-11 ソニー株式会社 高能率符号化方法及び装置
US5495529A (en) * 1992-11-26 1996-02-27 Nec Corporation Digital sound level control apparatus
JPH06180948A (ja) * 1992-12-11 1994-06-28 Sony Corp ディジタル信号処理装置又は方法、及び記録媒体
JP3186290B2 (ja) * 1993-01-20 2001-07-11 ソニー株式会社 符号化方法、符号化装置、復号化装置及び記録媒体
JP3123286B2 (ja) * 1993-02-18 2001-01-09 ソニー株式会社 ディジタル信号処理装置又は方法、及び記録媒体
JP3186292B2 (ja) * 1993-02-02 2001-07-11 ソニー株式会社 高能率符号化方法及び装置
JP3123290B2 (ja) * 1993-03-09 2001-01-09 ソニー株式会社 圧縮データ記録装置及び方法、圧縮データ再生方法、記録媒体
JP3173218B2 (ja) * 1993-05-10 2001-06-04 ソニー株式会社 圧縮データ記録方法及び装置、圧縮データ再生方法、並びに記録媒体
KR100458969B1 (ko) * 1993-05-31 2005-04-06 소니 가부시끼 가이샤 신호부호화또는복호화장치,및신호부호화또는복호화방법
PL173718B1 (pl) * 1993-06-30 1998-04-30 Sony Corp Sposób i urządzenie do kodowania sygnałów cyfrowych
US5363404A (en) * 1993-07-13 1994-11-08 Motorola Inc. Apparatus and method for conveying information in a communication network
TW272341B (de) * 1993-07-16 1996-03-11 Sony Co Ltd
TW327223B (en) * 1993-09-28 1998-02-21 Sony Co Ltd Methods and apparatus for encoding an input signal broken into frequency components, methods and apparatus for decoding such encoded signal
EP0674394B1 (de) * 1993-10-08 2001-05-16 Sony Corporation Digitaler signalprozessor, verfahren zum verarbeiten digitaler signale und medium zum aufnehmen von signalen
US5737720A (en) * 1993-10-26 1998-04-07 Sony Corporation Low bit rate multichannel audio coding methods and apparatus using non-linear adaptive bit allocation
KR100269213B1 (ko) * 1993-10-30 2000-10-16 윤종용 오디오신호의부호화방법
KR100330290B1 (ko) * 1993-11-04 2002-08-27 소니 가부시끼 가이샤 신호부호화장치,신호복호화장치,및신호부호화방법
EP0692881B1 (de) * 1993-11-09 2005-06-15 Sony Corporation Quantisierungsvorrichtung und -verfahren, kodierer und kodierverfahren mit hoher effizienz, dekodierer und aufzeichnungsträger
JP3125543B2 (ja) * 1993-11-29 2001-01-22 ソニー株式会社 信号符号化方法及び装置、信号復号化方法及び装置、並びに記録媒体
JP3175446B2 (ja) * 1993-11-29 2001-06-11 ソニー株式会社 情報圧縮方法及び装置、圧縮情報伸張方法及び装置、圧縮情報記録/伝送装置、圧縮情報再生装置、圧縮情報受信装置、並びに記録媒体
JP3404837B2 (ja) * 1993-12-07 2003-05-12 ソニー株式会社 多層符号化装置
WO1995016263A1 (fr) * 1993-12-07 1995-06-15 Sony Corporation Procede, dispositif et support concernant le traitement de l'information
US5608713A (en) * 1994-02-09 1997-03-04 Sony Corporation Bit allocation of digital audio signal blocks by non-linear processing
JP3277677B2 (ja) * 1994-04-01 2002-04-22 ソニー株式会社 信号符号化方法及び装置、信号記録媒体、信号伝送方法、並びに信号復号化方法及び装置
CA2163371C (en) * 1994-04-01 2005-09-20 Kyoya Tsutsui Information encoding method and apparatus, information decoding method and apparatus, information transmission method, and information recording medium
JP3186412B2 (ja) * 1994-04-01 2001-07-11 ソニー株式会社 情報符号化方法、情報復号化方法、及び情報伝送方法
JP3277682B2 (ja) * 1994-04-22 2002-04-22 ソニー株式会社 情報符号化方法及び装置、情報復号化方法及び装置、並びに情報記録媒体及び情報伝送方法
JP3250376B2 (ja) * 1994-06-13 2002-01-28 ソニー株式会社 情報符号化方法及び装置並びに情報復号化方法及び装置
JP3277705B2 (ja) 1994-07-27 2002-04-22 ソニー株式会社 情報符号化装置及び方法、並びに情報復号化装置及び方法
JP3237089B2 (ja) * 1994-07-28 2001-12-10 株式会社日立製作所 音響信号符号化復号方法
JP3341474B2 (ja) * 1994-07-28 2002-11-05 ソニー株式会社 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体
US6167093A (en) * 1994-08-16 2000-12-26 Sony Corporation Method and apparatus for encoding the information, method and apparatus for decoding the information and method for information transmission
US5654952A (en) * 1994-10-28 1997-08-05 Sony Corporation Digital signal encoding method and apparatus and recording medium
JP3557674B2 (ja) * 1994-12-15 2004-08-25 ソニー株式会社 高能率符号化方法及び装置
JP3371590B2 (ja) * 1994-12-28 2003-01-27 ソニー株式会社 高能率符号化方法及び高能率復号化方法
JPH08190764A (ja) * 1995-01-05 1996-07-23 Sony Corp ディジタル信号処理方法、ディジタル信号処理装置及び記録媒体
KR100211830B1 (ko) * 1995-03-16 1999-08-02 윤종용 미니디스크의 적응변환 오디오 코딩회로
JP3189660B2 (ja) 1996-01-30 2001-07-16 ソニー株式会社 信号符号化方法
US6101276A (en) 1996-06-21 2000-08-08 Compaq Computer Corporation Method and apparatus for performing two pass quality video compression through pipelining and buffer management
US6026217A (en) * 1996-06-21 2000-02-15 Digital Equipment Corporation Method and apparatus for eliminating the transpose buffer during a decomposed forward or inverse 2-dimensional discrete cosine transform through operand decomposition storage and retrieval
JP3318825B2 (ja) * 1996-08-20 2002-08-26 ソニー株式会社 デジタル信号符号化処理方法、デジタル信号符号化処理装置、デジタル信号記録方法、デジタル信号記録装置、記録媒体、デジタル信号伝送方法及びデジタル信号伝送装置
JPH1083623A (ja) * 1996-09-10 1998-03-31 Sony Corp 信号記録方法、信号記録装置、記録媒体および信号処理方法
US5924064A (en) * 1996-10-07 1999-07-13 Picturetel Corporation Variable length coding using a plurality of region bit allocation patterns
JP3496411B2 (ja) * 1996-10-30 2004-02-09 ソニー株式会社 情報符号化方法及び復号化装置
US6782365B1 (en) 1996-12-20 2004-08-24 Qwest Communications International Inc. Graphic interface system and product for editing encoded audio data
US5864813A (en) * 1996-12-20 1999-01-26 U S West, Inc. Method, system and product for harmonic enhancement of encoded audio signals
US6516299B1 (en) 1996-12-20 2003-02-04 Qwest Communication International, Inc. Method, system and product for modifying the dynamic range of encoded audio signals
US5845251A (en) * 1996-12-20 1998-12-01 U S West, Inc. Method, system and product for modifying the bandwidth of subband encoded audio data
US6463405B1 (en) 1996-12-20 2002-10-08 Eliot M. Case Audiophile encoding of digital audio data using 2-bit polarity/magnitude indicator and 8-bit scale factor for each subband
US6477496B1 (en) 1996-12-20 2002-11-05 Eliot M. Case Signal synthesis by decoding subband scale factors from one audio signal and subband samples from different one
US5864820A (en) * 1996-12-20 1999-01-26 U S West, Inc. Method, system and product for mixing of encoded audio signals
US6014491A (en) * 1997-03-04 2000-01-11 Parsec Sight/Sound, Inc. Method and system for manipulation of audio or video signals
US6721491B1 (en) * 1999-12-22 2004-04-13 Sightsound Technologies, Inc. Method and system for manipulation of audio or video signals
TW384434B (en) 1997-03-31 2000-03-11 Sony Corp Encoding method, device therefor, decoding method, device therefor and recording medium
JP3282661B2 (ja) * 1997-05-16 2002-05-20 ソニー株式会社 信号処理装置および方法
US6091773A (en) * 1997-11-12 2000-07-18 Sydorenko; Mark R. Data compression method and apparatus
US6252905B1 (en) 1998-02-05 2001-06-26 International Business Machines Corporation Real-time evaluation of compressed picture quality within a digital video encoder
US7440498B2 (en) 2002-12-17 2008-10-21 Tellabs Operations, Inc. Time domain equalization for discrete multi-tone systems
ES2389626T3 (es) 1998-04-03 2012-10-29 Tellabs Operations, Inc. Filtro para acortamiento de respuesta al impulso, con restricciones espectrales adicionales, para transmisión de múltiples portadoras
US6795424B1 (en) 1998-06-30 2004-09-21 Tellabs Operations, Inc. Method and apparatus for interference suppression in orthogonal frequency division multiplexed (OFDM) wireless communication systems
US6529868B1 (en) * 2000-03-28 2003-03-04 Tellabs Operations, Inc. Communication system noise cancellation power signal calculation techniques
US7754025B1 (en) 2000-06-08 2010-07-13 Beverage Works, Inc. Dishwasher having a door supply housing which holds dish washing supply for multiple wash cycles
US7083071B1 (en) 2000-06-08 2006-08-01 Beverage Works, Inc. Drink supply canister for beverage dispensing apparatus
US6799085B1 (en) 2000-06-08 2004-09-28 Beverage Works, Inc. Appliance supply distribution, dispensing and use system method
US7889783B2 (en) * 2002-12-06 2011-02-15 Broadcom Corporation Multiple data rate communication system
WO2004057575A2 (en) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. Sinusoid selection in audio encoding
WO2004057576A1 (en) * 2002-12-19 2004-07-08 Koninklijke Philips Electronics N.V. Sinusoid selection in audio encoding
JP4380174B2 (ja) * 2003-02-27 2009-12-09 沖電気工業株式会社 帯域補正装置
US7283910B2 (en) * 2004-07-15 2007-10-16 Baker Hughes Incorporated Incremental depth measurement for real-time calculation of dip and azimuth
US7647182B2 (en) * 2004-07-15 2010-01-12 Baker Hughes Incorporated Apparent dip angle calculation and image compression based on region of interest
US7200492B2 (en) 2004-07-15 2007-04-03 Baker Hughes Incorporated Apparent dip angle calculation and image compression based on region of interest
US7295928B2 (en) * 2004-10-21 2007-11-13 Baker Hughes Incorporated Enhancing the quality and resolution of an image generated from single or multiple sources
EP1960995A4 (de) * 2005-11-04 2017-04-19 Tektronix, Inc. Dateikomprimierung zum erzeugen einer spektralspur
US7272504B2 (en) * 2005-11-15 2007-09-18 Baker Hughes Incorporated Real-time imaging while drilling
KR100943606B1 (ko) * 2006-03-30 2010-02-24 삼성전자주식회사 디지털 통신 시스템에서 양자화 장치 및 방법
JP4918841B2 (ja) * 2006-10-23 2012-04-18 富士通株式会社 符号化システム
CN101562015A (zh) * 2008-04-18 2009-10-21 华为技术有限公司 音频处理方法及装置
KR101135062B1 (ko) * 2010-09-10 2012-04-13 고려대학교 산학협력단 전력 분석 공격을 위한 신호 압축 장치 및 방법
JP5986565B2 (ja) * 2011-06-09 2016-09-06 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカPanasonic Intellectual Property Corporation of America 音声符号化装置、音声復号装置、音声符号化方法及び音声復号方法
WO2016013161A1 (ja) * 2014-07-24 2016-01-28 株式会社ソシオネクスト 信号処理装置及び信号処理方法
KR101946605B1 (ko) 2017-07-07 2019-02-11 강두석 곡물 건조 및 냉각장치
KR102255476B1 (ko) 2019-02-01 2021-05-21 강두석 볶음곡물 냉각장치

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184049A (en) * 1978-08-25 1980-01-15 Bell Telephone Laboratories, Incorporated Transform speech signal coding with pitch controlled adaptive quantizing
US4455649A (en) * 1982-01-15 1984-06-19 International Business Machines Corporation Method and apparatus for efficient statistical multiplexing of voice and data signals
US4535472A (en) * 1982-11-05 1985-08-13 At&T Bell Laboratories Adaptive bit allocator
JPS59223032A (ja) * 1983-06-01 1984-12-14 Sony Corp ディジタル信号伝送装置
US4885790A (en) * 1985-03-18 1989-12-05 Massachusetts Institute Of Technology Processing of acoustic waveforms
AU6519986A (en) * 1985-11-18 1987-05-21 Anicon Inc. Quartz 'boat' for chemical vapor deposition of semiconductor wafers
JPH0734291B2 (ja) * 1986-07-28 1995-04-12 株式会社日立製作所 デイジタル信号記録再生システム
US4870685A (en) * 1986-10-26 1989-09-26 Ricoh Company, Ltd. Voice signal coding method
DE3639753A1 (de) * 1986-11-21 1988-06-01 Inst Rundfunktechnik Gmbh Verfahren zum uebertragen digitalisierter tonsignale
NL8700985A (nl) * 1987-04-27 1988-11-16 Philips Nv Systeem voor sub-band codering van een digitaal audiosignaal.
US5109417A (en) * 1989-01-27 1992-04-28 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US5142656A (en) * 1989-01-27 1992-08-25 Dolby Laboratories Licensing Corporation Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio
US4932062A (en) * 1989-05-15 1990-06-05 Dialogic Corporation Method and apparatus for frequency analysis of telephone signals
DE69031517T2 (de) * 1989-06-30 1998-02-26 Nippon Electric Co Variable Blocklängenkodierung für unterschiedliche Charakteristiken der Eingangsabtastwerte
JP2844695B2 (ja) * 1989-07-19 1999-01-06 ソニー株式会社 信号符号化装置
US5115240A (en) * 1989-09-26 1992-05-19 Sony Corporation Method and apparatus for encoding voice signals divided into a plurality of frequency bands
JPH03117919A (ja) * 1989-09-30 1991-05-20 Sony Corp ディジタル信号符号化装置
FR2653280B1 (fr) * 1989-10-13 1992-01-10 France Etat Dispositif d'allocation de bits pour signal audio-numerique transforme, a quantification adaptative sur critere psycho-auditif.
JPH03132228A (ja) * 1989-10-18 1991-06-05 Victor Co Of Japan Ltd 直交変換信号符号化復号化方式
JP2861238B2 (ja) * 1990-04-20 1999-02-24 ソニー株式会社 ディジタル信号符号化方法
US5049992A (en) * 1990-08-27 1991-09-17 Zenith Electronics Corporation HDTV system with receivers operable at different levels of resolution
US5134475A (en) * 1990-12-11 1992-07-28 At&T Bell Laboratories Adaptive leak hdtv encoder
CA2075156A1 (en) * 1991-08-02 1993-02-03 Kenzo Akagiri Digital encoder with dynamic quantization bit allocation
US5231484A (en) * 1991-11-08 1993-07-27 International Business Machines Corporation Motion video compression system with adaptive bit allocation and quantization

Also Published As

Publication number Publication date
EP0554081A1 (de) 1993-08-04
KR100288460B1 (ko) 2001-05-02
AU656452B2 (en) 1995-02-02
CN1078832A (zh) 1993-11-24
EP0554081B1 (de) 1999-09-22
ES2138992T3 (es) 2000-02-01
DE69326484T2 (de) 2000-04-27
KR930017315A (ko) 1993-08-30
JP3134455B2 (ja) 2001-02-13
CA2088202A1 (en) 1993-07-30
DE69326484D1 (de) 1999-10-28
AU3195393A (en) 1993-08-05
CN1046608C (zh) 1999-11-17
US5301205A (en) 1994-04-05
CA2088202C (en) 2004-12-28
MY138517A (en) 2009-06-30
TW200586B (en) 1993-02-21
JPH05206866A (ja) 1993-08-13

Similar Documents

Publication Publication Date Title
ATE185016T1 (de) Vorrichtung und verfahren zur datenkompression
ATE195618T1 (de) Verfahren und einrichtung zur audiodatenkompression
DE69422343D1 (de) Gerät, verfahren und system zur komprimierung eines digitalen eingangssignals in mehr als einem kompressionsmodus
EP0575110A3 (de) Kompression und Dehnung von digitalen Signalen
AU2071692A (en) Digital encoder with dynamic quantization bit allocation
DE69122306D1 (de) Digitales Teilbandsignalkodiergerät
ATE196957T1 (de) Verfahren und vorrichtung mit bitzuordnung zur quantisierung und dequantizierung von transformierten sprachsignalen.
EP0801377A3 (de) Verfahren und Vorrichtung zur Signalkodierung
DE3471563D1 (en) Sub-band coding method
EP1005020A3 (de) Teilband Audiokodierer und diesen benutzendes drahtloses Mikrofon
KR0152016B1 (ko) 가변 비트할당을 이용한 부호화 및 복호화시스템
EP0784312B1 (de) System zur Kodierung und Dekodierung von Audiosignalen
JP3011447B2 (ja) 帯域分割符号化装置
JP2811810B2 (ja) 信号符号化装置
KR960003453B1 (ko) 채널 및 각 프레임에 적응적으로 비트 할당하여 부호화하는 스테레오 디지탈 오디오 부호화장치
KR0144841B1 (ko) 음향신호의 적응적 부호화 및 복호화장치
WO1999013646A3 (en) Image signal processing method and apparatus
KR0138325B1 (ko) 오디오 신호 부호화 방법
KR0181054B1 (ko) 다수개의 채널들로부터의 입력 디지탈 오디오 신호들을 적응적으로 부호화하는 장치
KR100246376B1 (ko) 서브밴드 부호화기의 적응비트 할당장치
JPH07154268A (ja) 帯域分割符号化装置
KR960027361A (ko) 디지탈 오디오 데이타 부호화장치
KR940010542A (ko) 가변비트할당 방식의 부호화시스템
JP2000091920A (ja) 画像音声圧縮装置
KR930015378A (ko) 낮은 전송률에서 음성신호 부호화 방법

Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification