DE68912380D1 - Vorrichtung zur Synthese von analogen Signalen in PCM. - Google Patents

Vorrichtung zur Synthese von analogen Signalen in PCM.

Info

Publication number
DE68912380D1
DE68912380D1 DE89106631T DE68912380T DE68912380D1 DE 68912380 D1 DE68912380 D1 DE 68912380D1 DE 89106631 T DE89106631 T DE 89106631T DE 68912380 T DE68912380 T DE 68912380T DE 68912380 D1 DE68912380 D1 DE 68912380D1
Authority
DE
Germany
Prior art keywords
pcm
synthesis
analog signals
analog
signals
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.)
Expired - Fee Related
Application number
DE89106631T
Other languages
English (en)
Other versions
DE68912380T2 (de
Inventor
Toru Ogawa
Seiichi Sato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Namco Ltd
Original Assignee
Namco Ltd
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=14002226&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68912380(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Namco Ltd filed Critical Namco Ltd
Publication of DE68912380D1 publication Critical patent/DE68912380D1/de
Application granted granted Critical
Publication of DE68912380T2 publication Critical patent/DE68912380T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H7/00—Instruments in which the tones are synthesised from a data store, e.g. computer organs
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/131—Mathematical functions for musical analysis, processing, synthesis or composition
    • G10H2250/165—Polynomials, i.e. musical processing based on the use of polynomials, e.g. distortion function for tube amplifier emulation, filter coefficient calculation, polynomial approximations of waveforms, physical modeling equation solutions
    • G10H2250/195—Lagrange polynomials, e.g. for polynomial interpolation or cryptography
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2250/00—Aspects of algorithms or signal processing methods without intrinsic musical character, yet specifically adapted for or used in electrophonic musical processing
    • G10H2250/541—Details of musical waveform synthesis, i.e. audio waveshape processing from individual wavetable samples, independently of their origin or of the sound they represent
    • G10H2250/545—Aliasing, i.e. preventing, eliminating or deliberately using aliasing noise, distortions or artifacts in sampled or synthesised waveforms, e.g. by band limiting, oversampling or undersampling, respectively
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/09—Filtering

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Analogue/Digital Conversion (AREA)
  • Noise Elimination (AREA)
DE68912380T 1988-04-13 1989-04-13 Vorrichtung zur Synthese von analogen Signalen in PCM. Expired - Fee Related DE68912380T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63090575A JP2970907B2 (ja) 1988-04-13 1988-04-13 Ｐｃｍにおけるアナログ信号合成装置

Publications (2)

Publication Number Publication Date
DE68912380D1 true DE68912380D1 (de) 1994-03-03
DE68912380T2 DE68912380T2 (de) 1994-08-11

Family

ID=14002226

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68912380T Expired - Fee Related DE68912380T2 (de) 1988-04-13 1989-04-13 Vorrichtung zur Synthese von analogen Signalen in PCM.

Country Status (7)

Country Link
US (1) US5050474A (de)
EP (1) EP0337458B1 (de)
JP (1) JP2970907B2 (de)
KR (1) KR970002239B1 (de)
CA (1) CA1309775C (de)
DE (1) DE68912380T2 (de)
ES (1) ES2050176T3 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5342990A (en) * 1990-01-05 1994-08-30 E-Mu Systems, Inc. Digital sampling instrument employing cache-memory
DE4190102B4 (de) * 1990-01-18 2005-04-14 E-MU Systems, Inc., Scotts Valley Datenverdichtung von Tondaten
JP2643553B2 (ja) * 1990-07-24 1997-08-20 ヤマハ株式会社 楽音信号処理装置
US6344791B1 (en) 1998-07-24 2002-02-05 Brad A. Armstrong Variable sensor with tactile feedback
US6347997B1 (en) 1997-10-01 2002-02-19 Brad A. Armstrong Analog controls housed with electronic displays
US6222525B1 (en) 1992-03-05 2001-04-24 Brad A. Armstrong Image controllers with sheet connected sensors
FR2704110B1 (fr) * 1993-04-16 1995-07-13 Balestro Freddy Dispositif de traitement de signaux utilisant plusieurs filtrages differents, notamment pour le codage audiofrequence de signaux vocaux.
WO1996002977A1 (en) * 1994-07-13 1996-02-01 Stanford Telecommunications, Inc. Method and apparatus for alias-driven frequency downconversion (mixing)
DE69623866T2 (de) * 1995-06-19 2003-05-28 Yamaha Corp Verfahren und Vorrichtung zur Bildung einer Tonwellenform durch kombinierte Verwendung von verschiedenen Auflösungen der Abtastwerte der Wellenformen
JP3658826B2 (ja) * 1995-12-21 2005-06-08 ヤマハ株式会社 楽音生成方法
US8674932B2 (en) 1996-07-05 2014-03-18 Anascape, Ltd. Image controller
US6351205B1 (en) 1996-07-05 2002-02-26 Brad A. Armstrong Variable-conductance sensor
SG67993A1 (en) 1996-08-30 1999-10-19 Yamaha Corp Sound source system based on computer software and method of generating acoustic waveform data
JP3220396B2 (ja) * 1996-11-05 2001-10-22 株式会社河合楽器製作所 楽音波形再生装置
KR100486208B1 (ko) * 1997-09-09 2005-06-16 삼성전자주식회사 돌비에이.시.-쓰리디코더의시간영역알리아싱제거장치및방법
US6532000B2 (en) 1997-10-01 2003-03-11 Brad A. Armstrong Analog controls housed with electronic displays for global positioning systems
US6415707B1 (en) 1997-10-01 2002-07-09 Brad A. Armstrong Analog controls housed with electronic displays for coffee makers
US6456778B2 (en) 1997-10-01 2002-09-24 Brad A. Armstrong Analog controls housed with electronic displays for video recorders and cameras
US6404584B2 (en) 1997-10-01 2002-06-11 Brad A. Armstrong Analog controls housed with electronic displays for voice recorders
US6069921A (en) * 1997-10-03 2000-05-30 At&T Corporation System and method for reducing quantization noise
FI20001913A (fi) * 2000-08-30 2002-03-01 Nokia Mobile Phones Ltd Menetelmä ja järjestely häiriön vähentämiseksi
TWI243357B (en) * 2003-07-01 2005-11-11 Mediatek Inc Data processing system and method suitable for audio synthesis

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030129A (en) * 1976-06-14 1977-06-14 Lase Industries Pulse code modulated digital audio system
JPS5951779B2 (ja) * 1978-06-01 1984-12-15 日本放送協会 デイジタル・アナログ変換方式
US4460890A (en) * 1982-01-21 1984-07-17 Sony Corporation Direct digital to digital sampling rate conversion, method and apparatus
JPS58165443A (ja) * 1982-03-26 1983-09-30 Victor Co Of Japan Ltd 信号の符号化記憶装置
GB2144285B (en) * 1983-07-29 1986-09-24 Raymond Allan Belcher Analague-to-digital and digital-to-analogue conversion
JPS60145745U (ja) * 1984-03-07 1985-09-27 パイオニア株式会社 Ｄ／ａ変換回路
US4660162A (en) * 1984-08-31 1987-04-21 Raytheon Company Interpolation pulse duration modulated multiplier
JPH0671193B2 (ja) * 1984-08-31 1994-09-07 株式会社日立製作所 非巡回型デイジタル・フイルタ
JPS6190514A (ja) * 1984-10-11 1986-05-08 Nippon Gakki Seizo Kk 楽音信号処理装置
US4602545A (en) * 1985-01-24 1986-07-29 Cbs Inc. Digital signal generator for musical notes
US4864625A (en) * 1985-09-13 1989-09-05 Casio Computer Co., Ltd. Effector for electronic musical instrument
JPH0631989B2 (ja) * 1985-11-14 1994-04-27 ロ−ランド株式会社 電子楽器の波形発生装置
JPS62120127A (ja) * 1985-11-20 1987-06-01 Matsushita Electric Ind Co Ltd デイジタルアナログ変換装置
US4841828A (en) * 1985-11-29 1989-06-27 Yamaha Corporation Electronic musical instrument with digital filter

Also Published As

Publication number Publication date
CA1309775C (en) 1992-11-03
JPH01261909A (ja) 1989-10-18
KR970002239B1 (en) 1997-02-26
DE68912380T2 (de) 1994-08-11
EP0337458A3 (en) 1990-11-28
EP0337458B1 (de) 1994-01-19
ES2050176T3 (es) 1994-05-16
US5050474A (en) 1991-09-24
EP0337458A2 (de) 1989-10-18
JP2970907B2 (ja) 1999-11-02
KR890016792A (ko) 1989-11-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee