|
| US3943811 | 12 Ago 1974 | 16 Mar 1976 | | Keyboard type musical instrument |
| US3943812 | 1 Nov 1974 | 16 Mar 1976 | Nippon Gakki Seizo Kabushiki Kaisha | Touch responsive sensor in electronic keyboard musical instrument |
| US3949638 | 18 Oct 1974 | 13 Abr 1976 | | Electronic musical instrument |
| US3951028 | 23 Oct 1974 | 20 Abr 1976 | Kimball International, Inc. | Electronic organ and method of operation |
| US3971282 | 27 Ene 1975 | 27 Jul 1976 | Kabushiki Kaisha Kawai Gakki Seisakusho | Electronic musical instrument capable of transposition |
| US3973460 | 18 Sep 1974 | 10 Ago 1976 | | Keyboard type musical instrument |
| US4015254 | 4 Dic 1975 | 29 Mar 1977 | General Motors Corporation | Keyboard encoding circuit utilizing an A/D converter |
| US4071691 | 24 Ago 1976 | 31 Ene 1978 | Peptek, Inc. | Human-machine interface apparatus |
| US4170916 | 23 Jun 1977 | 16 Oct 1979 | D. H. Baldwin Company | Touch operated capacitive switch for electronic musical instruments |
| US4176573 | 13 Oct 1978 | 4 Dic 1979 | Kawai Musical Instrument Mfg. Co. Ltd. | Intrakeyboard coupling and transposition control for a keyboard musical instrument |
| US4176575 | 21 Jun 1977 | 4 Dic 1979 | D. H. Baldwin & Company | Improved touch operated capacitance switch circuit for an electronic organ |
| US4177706 | 7 Jul 1978 | 11 Dic 1979 | | Digital real time music synthesizer |
| US4558623 | 7 Feb 1984 | 17 Dic 1985 | Kimball International, Inc. | Velocity and aftertouch sensitive keyboard |
| US4628785 | 18 Jun 1985 | 16 Dic 1986 | Kimball International, Inc. | Method and apparatus for calibrating a keyboard |
| US4628786 | 18 Jun 1985 | 16 Dic 1986 | Kimball International, Inc. | Velocity responsive musical instrument keyboard |
| US5025705 | 22 Nov 1989 | 25 Jun 1991 | | Method and apparatus for controlling a keyboard operated device |
| US5796389 | 2 May 1995 | 18 Ago 1998 | International Game Technology | Reduced noise touch screen apparatus and method |
| US6476798 | 22 Ago 1994 | 5 Nov 2002 | International Game Technology | Reduced noise touch screen apparatus and method |
| US6734843 | 24 Oct 2002 | 11 May 2004 | IGT | Reduced noise touch screen apparatus and method |
| US6943713 | 10 Mar 2000 | 13 Sep 2005 | Thomson-CSF Sextant | Process and device for the sequential addressing of the inputs of a multiplexer of a data acquisition circuit |