EP0463409A3 - Musical tone waveform generation apparatus - Google Patents

Musical tone waveform generation apparatus Download PDF

Info

Publication number: EP0463409A3
Authority: EP; European Patent Office
Prior art keywords: generation apparatus; musical tone; waveform generation; tone waveform; musical
Prior art date: 1990-06-28
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.): Granted

Application number

EP19910109115

Other versions

EP0463409B1 (en

EP0463409A2 (en

Inventor

Ryuji Usami

Kosuke Shiba

Koichiro Daigo

Kazuo Ogura

Jun Hosoda

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.)

Casio Computer Co Ltd

Original Assignee

Casio Computer Co 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.)

1990-06-28

Filing date

1991-06-04

Publication date

1993-09-22

1990-06-28 Priority claimed from JP2171216A external-priority patent/JP3010693B2/en

1990-06-28 Priority claimed from JP2171217A external-priority patent/JP3035991B2/en

1991-06-04 Application filed by Casio Computer Co Ltd filed Critical Casio Computer Co Ltd

1992-01-02 Publication of EP0463409A2 publication Critical patent/EP0463409A2/en

1993-09-22 Publication of EP0463409A3 publication Critical patent/EP0463409A3/en

1998-12-30 Application granted granted Critical

1998-12-30 Publication of EP0463409B1 publication Critical patent/EP0463409B1/en

2011-06-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Classifications

- 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
- G10H5/00—Instruments in which the tones are generated by means of electronic generators
- 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
- G10H7/002—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof
- G10H7/004—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof with one or more auxiliary processor in addition to the main processing unit
- 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
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
- 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
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
- G10H1/053—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only
- G10H1/057—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits
- G10H1/0575—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation during execution only by envelope-forming circuits using a data store from which the envelope is synthesized
- 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
- G10H1/00—Details of electrophonic musical instruments
- G10H1/18—Selecting circuits
- G10H1/183—Channel-assigning means for polyphonic instruments
- G10H1/185—Channel-assigning means for polyphonic instruments associated with key multiplexing
- G10H1/186—Microprocessor-controlled keyboard and assigning means
- 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
- G10H7/002—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof
- G10H7/006—Instruments in which the tones are synthesised from a data store, e.g. computer organs using a common processing for different operations or calculations, and a set of microinstructions (programme) to control the sequence thereof using two or more algorithms of different types to generate tones, e.g. according to tone color or to processor workload
- 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
- G10H2250/571—Waveform compression, adapted for music synthesisers, sound banks or wavetables
- G10H2250/591—DPCM [delta pulse code modulation]
- 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
- G10H2250/621—Waveform interpolation

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Multimedia (AREA)
General Engineering & Computer Science (AREA)
Computer Hardware Design (AREA)
Microelectronics & Electronic Packaging (AREA)
Electrophonic Musical Instruments (AREA)

EP91109115A 1990-06-28 1991-06-04 Musical tone waveform generation apparatus Expired - Lifetime EP0463409B1 (en)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
JP2171216A JP3010693B2 (en)	1990-06-28	1990-06-28	Musical sound wave generator
JP171216/90		1990-06-28
JP2171217A JP3035991B2 (en)	1990-06-28	1990-06-28	Musical sound wave generator
JP171217/90		1990-06-28

Publications (3)

Publication Number	Publication Date
EP0463409A2 EP0463409A2 (en)	1992-01-02
EP0463409A3 true EP0463409A3 (en)	1993-09-22
EP0463409B1 EP0463409B1 (en)	1998-12-30

Family

ID=26494012

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91109115A Expired - Lifetime EP0463409B1 (en)	1990-06-28	1991-06-04	Musical tone waveform generation apparatus

Country Status (3)

Country	Link
EP (1)	EP0463409B1 (en)
KR (1)	KR950006029B1 (en)
DE (1)	DE69130688T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE69517896T2 (en) *	1994-09-13	2001-03-15	Yamaha Corp., Hamamatsu	Electronic musical instrument and device for adding sound effects to the sound signal
SG59968A1 (en) *	1995-03-03	1999-02-22	Yamaha Corp	Computerized music apparatus composed of compatible software modules
JP3267106B2 (en) *	1995-07-05	2002-03-18	ヤマハ株式会社	Musical tone waveform generation method
JP3975593B2 (en)	1999-01-21	2007-09-12	株式会社ソニー・コンピュータエンタテインメント	Method for generating playback sound, electronic device for generating playback sound, and entertainment system
CN106155940A (en) *	2015-04-17	2016-11-23	扬智科技股份有限公司	System chip capable of protecting code and code protection method of system chip

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4184400A (en) *	1976-12-17	1980-01-22	Nippon Gakki Seizo Kabushiki Kaisha	Electronic musical instrument utilizing data processing system
US4554857A (en) *	1982-06-04	1985-11-26	Nippon Gakki Seizo Kabushiki Kaisha	Electronic musical instrument capable of varying a tone synthesis operation algorithm
JPH01101593A (en) *	1987-10-14	1989-04-19	Casio Comput Co Ltd	musical tone generator
EP0376342A2 (en) *	1988-12-29	1990-07-04	Casio Computer Company Limited	Data processing apparatus for electronic musical instruments

1991
- 1991-06-04 EP EP91109115A patent/EP0463409B1/en not_active Expired - Lifetime
- 1991-06-04 KR KR1019910009251A patent/KR950006029B1/en not_active Expired - Fee Related
- 1991-06-04 DE DE69130688T patent/DE69130688T2/en not_active Expired - Fee Related

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4184400A (en) *	1976-12-17	1980-01-22	Nippon Gakki Seizo Kabushiki Kaisha	Electronic musical instrument utilizing data processing system
US4554857A (en) *	1982-06-04	1985-11-26	Nippon Gakki Seizo Kabushiki Kaisha	Electronic musical instrument capable of varying a tone synthesis operation algorithm
JPH01101593A (en) *	1987-10-14	1989-04-19	Casio Comput Co Ltd	musical tone generator
EP0376342A2 (en) *	1988-12-29	1990-07-04	Casio Computer Company Limited	Data processing apparatus for electronic musical instruments

Also Published As

Publication number	Publication date
EP0463409B1 (en)	1998-12-30
DE69130688T2 (en)	1999-09-09
KR920001423A (en)	1992-01-30
DE69130688D1 (en)	1999-02-11
KR950006029B1 (en)	1995-06-07
EP0463409A2 (en)	1992-01-02

Publication	Publication Date	Title
HK1002146A1 (en)	1998-07-31	Musical tone generating apparatus
EP0488732A3 (en)	1993-04-28	Musical accompaniment playing apparatus
HK117595A (en)	1995-07-28	Musical tone waveform signal generating apparatus
EP0509812A3 (en)	1993-08-25	Musical accompaniment playing apparatus
EP0463411A3 (en)	1993-09-22	Musical tone waveform generation apparatus
EP0420391A3 (en)	1993-03-17	Tone generator
EP0474177A3 (en)	1993-10-06	Tone signal generating device
SG48333A1 (en)	1998-04-17	Electronic musical instrument having plural different tone generators
HK1013348A1 (en)	1999-08-20	Tone waveform generation apparatus
EP0459393A3 (en)	1992-01-22	Musical tone synthezising apparatus
EP0393701A3 (en)	1990-11-28	Musical tone synthesizing apparatus
HK134595A (en)	1995-09-01	Musical tone generating apparatus
HK4696A (en)	1996-01-19	Musical tone signal generating apparatus
EP0434086A3 (en)	1992-03-18	Musical tone control apparatus
HK187996A (en)	1996-10-18	Apparatus for synthesizing musical tones
HK188496A (en)	1996-10-18	Musical tone synthesizing apparatus
HK1001933A1 (en)	1998-07-17	Wind instrument tone synthesizer
HK188996A (en)	1996-10-18	Musical tone synthesizing apparatus
EP0463409A3 (en)	1993-09-22	Musical tone waveform generation apparatus
HK150695A (en)	1995-09-29	Musical tone synthesizing apparatus
EP0480561A3 (en)	1992-09-30	Reverberation sound generating apparatus
EP0322871A3 (en)	1990-12-05	Effect tone generating apparatus
SG48245A1 (en)	1998-04-17	Musical tone generating apparatus
GB2243014B (en)	1994-09-21	Musical instrument
SG50722A1 (en)	1998-07-20	Musical tone generating apparatus

Legal Events

Date	Code	Title	Description
1991-11-15	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1992-01-02	17P	Request for examination filed	Effective date: 19910702
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1996-12-04	17Q	First examination report despatched	Effective date: 19961022
1998-03-13	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-06-23	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
1998-06-23	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
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