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Class Information
Number: 84/659
Name: Music > Instruments > Electrical musical tone generation > Digital combinational circuit > Tone synthesis or timbre control
Description: Subject matter wherein harmonic content of a note is controlled or modified.










Sub-classes under this class:

Class Number Class Name Patents
84/661 Filtering 164
84/660 Mixing 155


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
4733591 Electronic musical instrument Mar. 29, 1988
4716804 Interactive music performance system Jan. 5, 1988
4643066 Electronic musical instrument Feb. 17, 1987
4616546 Electronic musical instrument forming tones by wave computation Oct. 14, 1986
4584922 Electronic musical instrument Apr. 29, 1986
4475427 Frequency independent ramp generator Oct. 9, 1984
4475429 Electronic equipment with tone generating function Oct. 9, 1984
4463650 System for converting oral music to instrumental music Aug. 7, 1984
4450745 Electronic musical instrument with plural tone production channels May. 29, 1984
4438502 Output processing system for a digital electronic musical instrument Mar. 20, 1984
4435831 Method and apparatus for time domain compression and synthesis of unvoiced audible signals Mar. 6, 1984
4433434 Method and apparatus for time domain compression and synthesis of audible signals Feb. 21, 1984
4429605 Electronic musical instrument Feb. 7, 1984
4416178 Touch response providing apparatus Nov. 22, 1983
4406204 Electronic musical instrument of fixed formant synthesis type Sep. 27, 1983
4403536 Microcomputer interfaced electronic organ Sep. 13, 1983
4402246 Tone quality presetting apparatus in electronic musical instrument Sep. 6, 1983
4393740 Programmable tone generator Jul. 19, 1983
4384503 Mulitiple language electronic musical keyboard system May. 24, 1983
4375777 Electronic musical instrument Mar. 8, 1983
4352311 Synthesizer preset editing techniques Oct. 5, 1982
RE30982 Time shared tone keying system in electronic musical instrument Jun. 29, 1982
4310804 Input activated frequency synthesizer Jan. 12, 1982
4294153 Method of synthesizing musical tones Oct. 13, 1981
4283983 Electronic musical instrument Aug. 18, 1981
4271742 Sound generator for producing ANGKLONG like sound Jun. 9, 1981
4267761 Musical tone generator utilizing digital sliding formant filter May. 19, 1981
4245542 Method and apparatus for timbre control in an electronic musical instrument Jan. 20, 1981
4227433 Electronic musical instruments Oct. 14, 1980
4180707 Distortion sound effects circuit Dec. 25, 1979
4175463 Resonator for a musical tone synthesizer Nov. 27, 1979
4144789 Amplitude generator for an electronic organ Mar. 20, 1979
4127047 Method of and apparatus for composing digital tone signals Nov. 28, 1978
4114497 Electronic musical instrument having a coupler effect Sep. 19, 1978
4018125 Electronic musical instrument Apr. 19, 1977
4018121 Method of synthesizing a musical sound Apr. 19, 1977
4002095 Waveform converter for use with an electronic musical instrument and capable of controlling the duty factor of a rectangular wave tone signal Jan. 11, 1977
4003003 Multichannel digital synthesizer and modulator Jan. 11, 1977
3968717 Musical instrument with means for scanning keys Jul. 13, 1976
3943456 Signal generator for electronic musical instrument, employing variable rate integrator Mar. 9, 1976
3935781 Voice presetting system in electronic musical instruments Feb. 3, 1976

1 2 3 4 5 6










 
 
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