Electronic musical instrument in which musical tones are generated on the basis of pitches extracted from an input waveform signal

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(11)

EP 0 493 374 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	19.11.1992 Bulletin 1992/47

(43)	Date of publication A2:
	01.07.1992 Bulletin 1992/27

(21)	Application number: 92105224.7

(22)	Date of filing: 23.10.1987

(51)	International Patent Classification (IPC)⁵: G10H 3/00

(84)	Designated Contracting States:
	DE FR GB IT

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Priority:

24.10.1986 JP 253487/86
28.11.1986 JP 282142/86
28.11.1986 JP 283292/86
02.12.1986 JP 285985/86
03.12.1986 JP 286745/86
12.01.1987 JP 4714/87
06.03.1987 JP 50381/87

(62)	Application number of the earlier application in accordance with Art. 76 EPC:
	87115594.1 / 0264955

(71)	Applicant: CASIO COMPUTER COMPANY LIMITED
	Shinjuku-ku Tokyo 160 (JP)

(72)	Inventors:
	Uchiyama, Shigeru, Patent Dep. Dev. Div Hamura R&D Hamura-machi, Nishitamagun, Tokyo 190-11 (JP) Obata, Katsuhiko, Patent Dept. Dev. Div Hamura R&D Hamura-machi, Nishitamagun, Tokyo 190-11 (JP)

(74)	Representative: KUHNEN, WACKER & PARTNER
	Alois-Steinecker-Strasse 22 85354 Freising 85354 Freising (DE)

(56)

References cited: :


	Remarks:
	A request for replacement of present figures 17 to 28 by new figures 17 to 59a (according to reference numbers in the description) has been filed pursuant to Rule 88 EPC. A decision on the request will be taken during the proceedings before the Examining Division (Guidelines for Examination in the EPO, A-V, 2.2).


	Remarks:
	This application was filed on 26 - 03 - 1992 as a divisional application to the application mentioned under INID code 60.

(54)	Electronic musical instrument in which musical tones are generated on the basis of pitches extracted from an input waveform signal

(57) There is disclosed an apparatus for generating a musical tone signal in accordance with an input waveform signal, comprising a sounding commanding means for providing a command to generate a musical tone having a designated frequency, level judging means for judging whether an amplitude level of said input waveform signal is below a predetermined value, continue judging means for judging whether the input signal amplitude level below the predetermined level continues for a predetermined period of time and sounding stop commanding means for stopping sounding when said continue judging means judges that said input signal amplitude level state continues for the predetermined time.

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