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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 7203321 | Device for electroacoustic sound generation in a motor vehicle A device for electroacoustic sound generation in a motor vehicle with a sound pressure sensor, a signal processing unit, which is connected with the sound pressure sensor and receives and processes signals therefrom, and a loudspeaker unit with at least one loudspea... | 04/10/2007 |
| 7176374 | Music synthesizer and a method of generating a synthesizer output with a constant beat Prior art synthesizers often select a small interval d to detune. For example, if the nominal oscillator frequency was 1000 Hz, then applying a detune parameter of 10 cent would result in a detuned oscillator frequency of 1006 Hz. However, at the next octave, the no... | 02/13/2007 |
| 7085392 | Loudspeaker sound modulation appliance In combination with a loudspeaker assembly that includes a speaker diaphragm that is displaced to produce sound, the combination comprising a spinner element mounted to rotate in the path of sound waves produced by the speaker diaphragm; and a rotary drive for rotat... | 08/01/2006 |
| 7024007 | Electric signal processing of electroacoustic transducer It is usual to utilize electric current filters for electroacoustic transducers, the filters are in general frequency mixers. Audio electric signals have a pulse response quality and excellent frequency adjustment. As for electroacoustic transducers, the transformat... | 04/04/2006 |
| 6974902 | Music synthesizer and a method of generating a synthesizer output with a constant beat Prior art synthesizers often select a small interval d to detune. For example, if the nominal oscillator frequency was 1000 Hz, then applying a detune parameter of 10 cent would result in a detuned oscillator frequency of 1006 Hz. However, at the next octave, the no... | 12/13/2005 |
| 6916980 | Acoustic control system for electronic musical instrument An acoustic control system for an electronic musical instrument, which can obtain optimal acoustic characteristics irrespective of whether or not a low range speaker is attached to a body thereof. A piano body has high range and mid range speakers. A low range speak... | 07/12/2005 |
| 6873708 | Method and apparatus to simulate rotational sound Since the prior-art is based upon analog circuitry, it uses sinusoidal frequency and/or amplitude modulation to simulate a rotating speaker at a reasonable cost. This invention uses a process based upon theoretically derived frequency modulation (FM) and experimenta... | 03/29/2005 |
| 6369312 | Method for expressing vibratory music and apparatus therefor A method for expressing a vibratory music that may be felt as a piece of music for a human being in according with an acoustic vibration in an auditory region and/or a body sensible vibration or a body sensible acoustic vibration and an apparatus therefor... | 04/09/2002 |
| 5333203 | Reverb and selectable tremolo and vibrato electron tube preamplifier A preamplifier device employing electron tubes wherein the preamplifier has tremolo/vibrato circuits independent from reverb circuits allowing continuously variable control of either tremolo or vibrato effects simultaneous with continuously variable contr... | 07/26/1994 |
| 5060270 | Reverberation circuit A reverberation circuit comprises an amplifier, attenuation circuit, a feedback component, and a delay circuit. The amplifier, delay circuit, and feedback component form a feedback loop. The amplifier amplifies an input signal supplied to an input termina... | 10/22/1991 |
| 4658692 | Control circuit for shaded-pole motor A control circuit for shaded-pole motors used in an acoustic pulsato system for producing special musical effects. The system includes a horn-type loudspeaker connected to a shaded-pole motor and/or a drum-type loudspeaker connected to a shaded-pole motor... | 04/21/1987 |
| 4621557 | Electronic musical instrument An electronic musical instrument which is capable of attaining the tonal coloration and "feeling" of an acoustic instrument and wherein the pitch, timbre, and loudness of each sound which is produced can be controlled by the performer in real time in an a... | 11/11/1986 |
| 4463647 | Musical instrument Clavier multiplexing is used in the present keyboard musical instrument to reduce the number of sound generators needed by connecting them only to those notes that are depressed. The association of a tone generator with a control unit, which provides the ... | 08/07/1984 |
| 4428270 | Electronic vibrato or celeste Electronic circuits are provided for producing an electronic timbre modulation for effecting celeste or vibrato similar in sonic results to the well-known Leslie rotating speaker system. Electronic signals corresponding to audio tones are generated and ar... | 01/31/1984 |
| 4356751 | Electronic musical instrument An electronic musical instrument comprises a musical tone production circuit responsive to a depressed key among a plurality of keys, and a control circuit for controlling tone production manner which includes a plurality of manually operated members moun... | 11/02/1982 |
| 4354415 | Phase-modulating system for electronic musical instruments An electronic musical instrument comprises a sound generator connected to a loudspeaker by way of several parallel channels including respective delay lines constituted by charge-transfer devices of the bucket-brigade type stepped by different high-freque... | 10/19/1982 |
| 4350073 | Hybrid pipe organ with electronic tonal augmentation A hybrid organ is disclosed wherein many of the musical tones comprising the complete musical instrument are produced by wind blown pipes. Other tones are produced by an electronic tone generating system and produced by loudspeakers. The electronic tone g... | 09/21/1982 |
| 4329902 | Electronic method and apparatus for modifying musical sound A continuously varying electrical signal representing an original musical sound is divided at a selected mid-frequency of about 800 Hertz to provide upper and lower frequency signal bands which are then frequency-modulated with separate modulation signals... | 05/18/1982 |
| 4308428 | System for electronically simulating radiation effects produced by a rotary loudspeaker A device for electronically simulating vibrato and tremulant effects and the radiation effects produced by a rotary loudspeaker with the aid of two loudspeakers, in which a musical tone signal is applied to a variable delay device associated with one of t... | 12/29/1981 |
| 4306480 | Electronic musical instrument An electronic musical instrument having a fret board and a plurality of conductive frets may be coupled to a resistance ladder of discrete resistive elements. A conductive wire or a plurality of such wires selectively making contact with at least one of t... | 12/22/1981 |
| 4304162 | Electronic musical instrument including improved vibrato In an electronic organ including at least two frequency controlled delay circuits controlled by varying frequency output signals from individual voltage controlled oscillators, an analog modulating and intermixing circuit provides an even vibrato effect b... | 12/08/1981 |
| 4257305 | Pressure sensitive controller for electronic musical instruments An electronic musical instrument incorporates one or more pressure sensitive push-button controllers actuable independent of the keys or other note selecting elements of the instrument to vary a corresponding number of musical parameters. The specific con... | 03/24/1981 |
| 4253368 | Universal pulsato unit An improved mounting for an acoustic pulsato rotor for suppression of spurious sounds utilizes a spring bias for axial thrust between the shaft ends and bearing cups. In one form, a plurality of thin spider legs extend from a rotor mounting panel in surro... | 03/03/1981 |
| 4236434 | Apparatus for producing a vocal sound signal in an electronic musical instrument An electronic musical instrument for producing a vocal sound signal comprising a musical tone signal generator connected to a passing circuit for passing a musical tone signal under the selection of a key. A formant filter is connected in the passing circ... | 12/02/1980 |
| 4213367 | Monophonic touch sensitive keyboard A keyboard for a monophonic musical instrument has a plurality of touch sensitive keys which function as variable capacitors, the capacitance depending on the force applied to the keys. The variable capacitance is detected and used to produce a variable c... | 07/22/1980 |
| 4198890 | Keyboard system for musical instruments Adjacent primary digitals of a musical keyboard are actuated in the same fingering sequence for all key signatures. Each primary digital forms part of a three section group having two secondary digitals for producing the sharps and flats. Through a separa... | 04/22/1980 |
| 4198892 | Tone generator for electronic musical instrument with digital glissando, portamento and vibrato A tone generator for use with an electronic musical instrument includes a binary counter operated by a binary comparator and a source of clock signals for incrementally advancing or decreasing the state of the counter from a first selected state to a seco... | 04/22/1980 |
| 4189972 | Electronic musical instrument of numerical value processing type In an electronic musical instrument of a numerical value processing type, an operation of a key causes the generation of a numerical value corresponding to the operated key and a tone having a frequency determined by the numerical value is produced. A vib... | 02/26/1980 |
| 4179971 | Pitch bend apparatus for electronic musical instrument A pitch bend apparatus for electronic musical instrument having a voltage-controlled oscillator that works as a tone generator is provided with a first variable resistor for operating the pitch bend as well as a second variable resistor for setting a vary... | 12/25/1979 |
| 4164884 | Device for producing a chorus effect A device for producing a chorus effect in an electronic musical instrument. An electronic delay circuit and a non-modulating amplifier means are coupled in parallel and the outputs are mixed in a mixing amplifier. A carrier oscillator is coupled to the de... | 08/21/1979 |
| 4162372 | Device for electronically generating the radiation effects produced by a rotary loudspeaker A device for electronically simulating vibrato, chorus, and pseudostereo effects and the radiation effects produced by a rotary loudspeaker with the aid of two loudspeakers or loudspeaker combinations, in which device a controllable amplifier is associate... | 07/24/1979 |
| 4142434 | Circuit arrangement for electronic musical instruments In an electronic musical instrument with two tone generators of which the frequency of the tones produced by them is substantially constant for the first generator a priori and for the second generator not until after a final value is reached which corres... | 03/06/1979 |
| 4122744 | Variable frequency generator for polyphonic electronic music system Simultaneously played notes on a keyboard are automatically provided with different voice timbres. The assignment of voices to notes is by relative frequency-scale position within the chord. If four or more notes are played, the notes are scanned along th... | 10/31/1978 |
| 4114499 | Method and apparatus for securing vibrato and tremolo effects Method and apparatus for securing vibrato and tremolo effects in musical instruments, such as electronic organs, wherein an incoming electrical signal is separated into high and low frequency components which are injected into opposite ends of a multiple-... | 09/19/1978 |
| 4108041 | Phase shifting sound effects circuit A sound effect circuit with a phase shifter producing a signal shifted in phase with respect to an input signal, a combining circuit for arithmetically combining the input and phase shifted signals to produce an output signal, an oscillator for periodical... | 08/22/1978 |
| 4086838 | Vibrato signal generating arrangement for an electronic musical instrument A delayed vibrato signal generating arrangement comprises an envelope signal generator having a capacitor, a switching device for discharging the capacitor at the instant of key depression, and two charging circuits providing different charging time const... | 05/02/1978 |
| 4083284 | Delayed vibrato arrangement for an electronic musical instrument A delayed vibrato signal generating arrangement in which an envelope signal which changes from a first potential level to a second potential level at the instant of key depression, and thereafter varies gradually from the second potential level to the fir... | 04/11/1978 |
| 4080861 | Chorus control for electronic musical instrument In an electronic musical instrument, in particular an electronic organ, comprising a circuit for electrically modifying a musical tone by frequency modulation to provide an ensemble effect. The circuit comprises three series connected shift registers whic... | 03/28/1978 |
| 4078466 | Pulsato generating system A pulsato generating system which is composed of a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on an input musical signal, a phase rotating signal generator for producing f... | 03/14/1978 |
| 4072079 | Apparatus and method for modifying a musical tone to produce celeste and other effects A signal animation system for an electric organ or other electrical musical instrument which utilizes frequency-proportional detuning wherein the percentage detuning is progressive and uniform, to provide celeste and other musical effects. Detuning is acc... | 02/07/1978 |
