Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7638704 | Low frequency oscillator providing phase-staggered multi-channel midi-output control-signals Synthesis of time-varying MIDI control signals useful in creating spatial perturbation, chase effects, new forms of rich musical timbre modulation, spatially-distributed timbre constructions, and other types of sonic animation. Phase staggered multi-channel MIDI-for... | 12/29/2009 |
| 7365263 | Intonation training device An intonation training device for training musicians in just intonation. As disclosed, the device is a pocket-sized portable device with an audio output and a user interface which includes an LCD display and a device such as a push button for selecting an item from ... | 04/29/2008 |
| 7116008 | Electrical communication system for a bicycle A bicycle signal processing device includes a first bicycle signal processing element that generates a first signal having a first impedance, an external output terminal having an exposed output contact surface, and an impedance converting circuit coupled between th... | 10/03/2006 |
| 7067731 | Sound source circuit and telephone terminal using same A sound source circuit is provided for a telephone terminal to reproduce chorus-effect imparted musical tones as incoming call sound or hold sound. Herein, original musical tone data ω c1 are slightly modified in pitches to produce musical tone data ω c2... | 06/27/2006 |
| 7049503 | Hybrid wind instrument selectively producing acoustic tones and electric tones and electronic system used therein A hybrid saxophone is a combination of an acoustic saxophone and an electronic system, and the electronic system includes key sensors for monitoring the keys and a tonguing sensor for detecting the position of the tongue together with a breath sensor and a lip senso... | 05/23/2006 |
| 6954113 | Programmable oscillator circuit A programmable crystal oscillator is provided having a memory for storing frequency-defining parameters. Typically, one of these parameters is used to program an adjustable capacitive load circuit coupled to a crystal to thereby adjust the crystal source frequency. ... | 10/11/2005 |
| 6946592 | Plectrum for a string instrument, a transmitter/receiver arrangement and a signal processing apparatus A plectrum for a stringed musical instrument having a plurality of conductive strings is provided with a non-conductive body and a conductive tip. The conductive tip is sized so as to fleetingly contact a string when the string is plucked with a plectrum. The tip is... | 09/20/2005 |
| 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 |
| 6137042 | Visual display for music generated via electric apparatus A visual display is provide for music associated with a theremin or, in general, any space-controlled electric instrument. The theremin is a space-controlled electric instrument that produces an output of sound corresponding to the motion of the user, wit... | 10/24/2000 |
| 5194684 | Method and apparatus for selective reduction of upper harmonic content in digital synthesizer excitation signals Variable frequency sawtooth waveforms are often utilized as an excitation signal in a digital musical synthesizer. A problem exists at lower sampling rates in such systems due to an aliasing problem which occurs at frequencies near the Nyquist rate. Low p... | 03/16/1993 |
| 4662260 | Sound producing ball A sound producing device producing different notes when rotated. Three orthagonally mounted gravity switches produce signals corresponding to their orientation to a reference. A multiplexer or programmable counter coupled to the switches selects one outpu... | 05/05/1987 |
| 4537108 | Electronic musical instrument having variable frequency dividers An electronic musical instrument comprising a code generator responsive to the operation of each of the keys for generating a first code indicating a tone pitch and a second code indicating an octave associated with the operated key. A first variable freq... | 08/27/1985 |
| 4408514 | Electronic musical instrument having portaments property In a electronic musical instrument wherein a portamento is played by supplying the pitch voltage corresponding to a subsequently depressed key to a capacitor holding the pitch voltage corresponding to a previously depressed key, the charge and discharge c... | 10/11/1983 |
| 4356753 | Musical electro magnetic analog synthesizer controlled rocket engine A musical instrument combination including a rocket engine type combustion chamber and a system for firing it either by single drum beat control or by variable frequency control pulses. The effect achieved by the rocket engine output sound is similar to t... | 11/02/1982 |
| 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 |
| 4343219 | Delay line oscillator A two-phase, period-proportional voltage-controlled oscillator circuit is provided for clocking an analog delay line which can be used, for example, in an electronic musical instrument. The voltage-controlled oscillator circuit provides two clock output s... | 08/10/1982 |
| 4342244 | Musical apparatus A musical apparatus including a novel combination by which a musician may control the output of a musical synthesizer, while playing his own musical instrument in a normal manner. The musical synthesizer may be pre-programmed for many unusual and exciting... | 08/03/1982 |
| 4316401 | Music synthesizer There is disclosed herein a music synthesizer which responds to a music note played by a music instrument. The synthesizer has an envelope generator which generates a control signal in relation to the input signal to control the loudness of the synthesize... | 02/23/1982 |
| 4308779 | Control waveform generators for electronic musical instruments In a control waveform generator for an electronic musical instrument of the type wherein the generator generates a control waveform adapted to control at least one of a tone pitch, a tone color and a tone volume, the control waveform generator is constitu... | 01/05/1982 |
| 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 |
| 4291604 | Memory override system for programmed electronic synthesizer A programmable electronic musical synthesizer includes a memory controlling a plurality of parameter circuits according to a selected group of stored parameter signals for producing a desired timbre of sound. A memory override system is responsive to manu... | 09/29/1981 |
| 4245539 | Musical platform Apparatus for producing signals of varying volume and pitch which are functions of the magnitude and distribution respectively, of weight (or weights) placed upon a platform hinged at one corner and swingable in mutually orthogonal directions. Sensors con... | 01/20/1981 |
| 4244261 | Electronic keyboard musical instrument A manually operated pressure sensitive button assembly is arranged by the side of the keyboard on the top front panel of the instrument, each button being electrically and operationally coupled to an associated element in the main processing system of mus... | 01/13/1981 |
| 4235141 | Electronic apparatus An apertured insulating strip permits closing a circuit only at contact points defined by the apertures between a low resistance conductor and a high resistance conductor in an electronic circuit of the type which produces musical notes each having a freq... | 11/25/1980 |
| 4228713 | Programmable current source for filter or oscillator In order to tune the frequency characteristics of a filter or oscillator as an exponential function of the position of a note on a musical scale, a pulse stream with an exponentially scaled duty cycle is used to gate an on-off switch which controls an ele... | 10/21/1980 |
| 4207791 | Automatic tuning device An automatic tuning device for use in a synthesizer of an electronic musical instrument in which an error signal is produced corresponding to an output tone signal from each of a plurality of voltage controlled oscillators and added to the input thereto f... | 06/17/1980 |
| 4207793 | Variable rate portamento system A portamento system is disclosed for use with an electronic musical instrument, and particularly with a monotonic keyboard instrument which utilizes master oscillator/divider elements for tone generation. The portamento system utilizes a voltage controlle... | 06/17/1980 |
| 4206676 | Electronic musical instrument with sequencer for automatic arpeggio performance An electronic musical instrument is provided with a keyboard circuit, a voltage-controlled tone signal generating circuit arrangement and a sequencer for sequentially coupling memorized pitch voltage signals to the voltage-controlled tone signal generatin... | 06/10/1980 |
| 4203340 | Electronic musical instrument An electronic musical instrument includes a tone signal generator whose operation is controlled by active electronic signal processing. The instrument includes both tone effect control means to provide an alternating current control signal to the tone sig... | 05/20/1980 |
| 4203337 | Large scale integrated circuit chip for an electronic organ In a modular, expandable organ system comprising a plurality of large scale integrated circuit (LSI) chips an LSI chip is provided which produces frequencies corresponding to notes played on an organ keyboard. Outputs of different duty cycles of rectangul... | 05/20/1980 |
| 4179968 | Electronic musical instrument An electronic musical instrument comprises a circuits for generating two kinds of voltages of tone pitch voltages and control voltages both of which correspond to respective keys but are independent of each other. In the control voltage generating circuit... | 12/25/1979 |
| 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 |
| 4179969 | Tone generator for electrical music instrument In a tone generating apparatus for an electrical music instrument having an array of switches corresponding to respective keys of a keyboard and which are selectively actuable by manipulation of the respective keys, a timing signal generator, preferably i... | 12/25/1979 |
| 4178823 | Portable electronic musical instrument An electronic musical instrument has a keyboard including a plurality of scale keys and a plurality of chord keys. Musical sounds are generated by a programmable frequency divider network capable of producing different output frequencies, depending on whi... | 12/18/1979 |
| 4173164 | Electronic musical instrument with frequency modulation of a tone signal with an audible frequency signal An electronic musical instrument comprises first and second voltage-controlled frequency-variable oscillators responsive to application of a pitch determining voltage signal from a keyboard circuit to produce first and second audible frequency signals, re... | 11/06/1979 |
| 4170160 | Electronic musical instrument An electronic musical instrument includes a linear voltage divider network including a plurality of equal series resistance elements for generating a first output voltage as a function of the state of a plurality of tone select keys. This first voltage is... | 10/09/1979 |
| 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 |
| 4121489 | Electronic musical instrument having plural oscillators starting in phase An electronic musical instrument comprises a plurality of tone generators for independently producing tone signals having slightly different frequencies, though fundamentally corresponding to the note of a key depressed on a keyboard; and a mixing circuit... | 10/24/1978 |
| 4103581 | Constant speed portamento A keyboard operated tone synthesizer with portamento effect in which each key controls the pitch of the generated tone through a table of frequency numbers, each key selecting a corresponding frequency control number from the table and converting this num... | 08/01/1978 |
