"Fooling around with alternating current is just a waste of time. Nobody will use it, ever."
Thomas Edison ; 1889
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| Number | Title | Issue Date |
| 4183277 | Rhythm accent circuit In an electronic musical instrument of the type in which pitch selection is achieved by pulse position modulation, and a rhythm accompaniment is played automatically under the direction of a read-only memory, a shift register is used to create pulse posit... | 01/15/1980 |
| 4181059 | Circuit for simulating sound of wire brush rotated around head of snare drum An electronic musical circuit simulates the sound of a wire brush rotated around the head of a snare drum by differently amplitude modulating and bandpass filtering in separate channels a noise signal derived from a suitable source and summing the modulat... | 01/01/1980 |
| 4149441 | Electrical musical instrument A manually played electrical musical instrument of the electronic type in which simultaneously with selection and playing of a melody tone (note) a predetermined pattern of harmonies are also selected in such manner that at least five of the harmonies sel... | 04/17/1979 |
| 4135423 | Automatic rhythm generator An automatic rhythm generator of an electrical musical instrument including a rhythm pattern generator for rhythmically selecting for actuation different ones of a plurality of instrumentation circuits to be sounded and a strobe pulse generating circuit f... | 01/23/1979 |
| 4126071 | Apparatus for an automatic musical performance An arrangement for providing an automatic musical performance in which a digital signal indicating a root tone is obtained by depression of a key, and is added in sequential order with digital signals obtained from a memory circuit. The latter is driven b... | 11/21/1978 |
| 4064777 | Circuit for preferentially selecting highest and lowest tones A circuit in an electronic keyboard musical instrument for preferentially selecting the highest and lowest tones from among the tones in chords produced by keys on the keyboard which have been struck. The circuit has a set of series connected resistors ha... | 12/27/1977 |
| 4058043 | Programmable rhythm apparatus A programmable rhythm apparatus for use with an electronic musical instrument comprising a sequential pulse generator, a plurality of individually programmable rhythm channels or tracks each producing an output pulse pattern in response to the sequential ... | 11/15/1977 |
| 4020728 | Electronic organ with automatic keying of pedal notes An electronic organ having an automatic pedal keying circuit in which a selected pattern of pedal voice notes is played in response to depression of only a single key, which may be a pedal key. When the automatic circuit is effective, normal pedal voice k... | 05/03/1977 |
| 4018123 | Automatic rhythm performing apparatus capable of expressing stressed and relaxed beats of rhythm An automatic rhythm performing apparatus comprises a rhythm pattern generator for generating stressed beat pattern pulses representative of stressed beats of a rhythm to be generated and relaxed beat pattern pulses representative of relaxed beats of the r... | 04/19/1977 |
| 4016791 | Automatic rhythm playing apparatus An automatic rhythm producing apparatus is capable of emphasizing a rhythm pattern of a desired percussion instrument among a plurality of rhythm patterns which constitute a rhythm. The rhythm producing apparatus has a pulse level control circuit for cont... | 04/12/1977 |
| 3986424 | Automatic rhythm-accompaniment apparatus for electronic musical instrument An automatic rhythm accompaniment apparatus for an electronic musical instrument is characterized in that the same comprises a plurality of chord-memory circuits which detect and memorize respective first tones in respective bars of a melody played by the... | 10/19/1976 |
| 3974729 | Automatic rhythm playing apparatus The automatic rhythm producing apparatus according to the invention is capable of providing a clock pulse used for obtaining a basic tempo of a rhythm sound with an irregular pulse period as desired. The apparatus comprises an oscillator for producing a s... | 08/17/1976 |
| 3972258 | Automatic rhythm performance system An automatic rhythm performance system is provided with a rhythm pattern changing circuit comprising a white noise source and a sample hold circuit which samples the output of the white noise source in response to a pulse signal occurring at the beginning... | 08/03/1976 |
| 3951029 | Automatic accompaniment system for use with an electronic musical instrument An automatic accompaniment system for use with an electronic musical instrument of a type having keyboard arrangements, which is capable of automatically sounding chords and basses in accordance with a predetermined rhythm of a selected music, the basses ... | 04/20/1976 |