Bizarre Patents
A beach chair which can be adapted for a woman who is pregnant and wishes to sunbathe in the prone position.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4674384 | Electronic musical instrument with automatic accompaniment unit Key operation speed of a performance key in the keyboard is detected at speed detector to produce a speed detection signal which is supplied to overspeed detector. When the speed detection signal represents that the key operation speed is higher than a re... | 06/23/1987 |
| 4674382 | Electronic musical instrument having a touch responsive control function A keyboard is capable of being used by splitting it in plural key areas at a predetermined split position or positions. A tone forming circuit generates a tone signal corresponding to a depressed key in each key area in a tone generation manner correspond... | 06/23/1987 |
| 4655114 | Tone generating apparatus A plurality of envelope generating circuits provide output envelope waveforms which are controlled according to the output from a plurality of timbre switches. The envelope waveform of at least one of the envelope generating circuits is modified according... | 04/07/1987 |
| 4653374 | Electronic musical instrument with a bender provided separately from performance keys A digital pitch bend signal is supplied from an A/D converter to a first coefficient multiplier for every predetermined sampling period. An output of the first coefficient multiplier is added with an output of a second coefficient multiplier at an adder a... | 03/31/1987 |
| 4644841 | Electronic musical instrument An electronic musical instrument which has a keyboard and creates a musical tone by striking keys of the keyboard, is provided with an operation control circuit and an adder both for effecting keyboard switch chattering prevent operation processing and to... | 02/24/1987 |
| 4633750 | Key-touch value control device of electronic key-type musical instrument A key-touch value control device for an electronically operated musical instrument including a series of keys, wherein the state of each of the keys is detected to produce a succession of key-state signals each indicative of one of the key-on state, key-o... | 01/06/1987 |
| 4628789 | Tone effect imparting device Tone signals from plural keyboard systems are supplied to an effect imparting circuit via a distribution circuit. The effect imparting circuit comprises plural effect imparting channels and the device can impart a tone effect independently to a tone signa... | 12/16/1986 |
| 4622878 | Stereophonic system for electronic organs A stereophonic electronic organ system having two electrical-acoustic channels each including a loudspeaker separated from the other, note generating means for producing for each note in a musical range two time-displaced electrical signals of substantial... | 11/18/1986 |
| 4580479 | Guitar controller A guitar controller for an electronic music synthesizer, especially a programmable music synthesizer of the VOYETRA (trademark) type, utilizes a Mylar pressure-resistive switch along the neck of the guitar for note selection and vibratile elements on the ... | 04/08/1986 |
| 4570523 | Reverberation tone generating apparatus The reverberation tone generating apparatus is constituted by a combination of apparatus which generates a reverberation tone having irregular delay time and level and apparatus provided with a feedback loop for an output delayed signal and produces a rev... | 02/18/1986 |
| 4569268 | Modulation effect device for use in electronic musical instrument A modulation effect device for use in an electronic musical instrument which utilizes, as a digital modulation circuit, a digital memory device for storing digitized musical tone signals. The digital memory device is accessed by modulation coefficient gen... | 02/11/1986 |
| 4558624 | Effect imparting device in an electronic musical instrument Analog output signals of a key touch sensor and tonal effect setting manual operators are respectively time division multiplexed and thereafter are converted to digital signals by using an analog to digital converter on a time shared basis. The key touch ... | 12/17/1985 |
| 4552051 | Electronic musical instrument with key touch detector and operator member In an electronic musical instrument comprising a keyboard including a plurality of keys, a tone signal generator for producing a musical tone signal corresponding to a depressed key, a key touch detector for generating a key touch signal concerning a key ... | 11/12/1985 |
| 4546245 | Electronic controller A two hand operated instrument, for controlling electronic music synthesizers, video games and computers, capable of producing two independent control voltages, in addition to the signals produced by keyboards held in each hand, such additional control vo... | 10/08/1985 |
| 4539884 | Electronic musical instrument of waveshape memory type with expression control In an electronic musical instrument of waveshape memory type, a waveshape memory stores waveshape data which covers from start to end of a musical tone and which varies litle by little in shape, amplitude and/or cyclic period as the waveshape extends to t... | 09/10/1985 |
| 4528885 | Touch-responsive apparatus in electronic musical instrument A touch responsive apparatus in an electronic musical instrument for controlling a musical tone of the instrument detects an after-touch of a key touch such as the depth or force of a key depression after the key has been depressed, and generates an after... | 07/16/1985 |
| 4512230 | Electronic musical instrument An electronic musical instrument has internal memories for storing various panel data and a detachable present circuit having external memories of high-speed operation for storing panel data equivalent to those of the internal memories, by which panel dat... | 04/23/1985 |
| 4510836 | Touch sensitivity in an electronic musical instrument having non-positive attack A touch sensitive system for an electronic musical instrument providing a multiple key switch contact system for effecting control over two or more tone generating systems. The first tone generating system operating rapidly in response to the actuation of... | 04/16/1985 |
| 4506581 | Touch response apparatus for electronic keyboard musical instrument The present invention provides a touch response apparatus for an electronic keyboard instrument wherein, in controlling a touch response state by detecting a key depression speed in the electronic keyboard instrument, the touch response states of keys are... | 03/26/1985 |
| 4497235 | Electronic musical instrument An electronic musical instrument in which a plurality of musical waveforms are obtained by a time-sharing style of multi-channels according to key data input from a keyboard. A wave-shape memory memorizes a plurality of wave-shape data representative of b... | 02/05/1985 |
| 4493237 | Electronic piano The invention relates to an electronic percussion-type musical instrument, such as an electronic piano, capable of producing electronically sounds simulating a piano, harpsichord or other keyboard percussion instrument. The keyboard is multiplexed to prod... | 01/15/1985 |
| 4483231 | Preset apparatus of electronic musical instrument Various types of information utilized for performance of an electronic musical instrument are stored in first and second memories. The information stored in the first memory represents parameters, as a preset data set, which determine a characteristic of ... | 11/20/1984 |
| 4453441 | Frequency modulator for an electronic musical instrument A keyboard operated electronic musical instrument is disclosed which has a number of tone generators that are assigned to actuated keyswitches. A tone generation computation means is implemented using a combination of an even symmetric function and an odd... | 06/12/1984 |
| 4449437 | Automatic piano The present invention is an electronic piano that includes various "easy play" features that enable a person with little musical training to play the piano producing music similar to that of a skilled musician. The "easy play" feature automatically create... | 05/22/1984 |
| 4444081 | Arpeggio generating system and method In an electronic musical instrument, an apparatus and method are described for automatically generating arpeggios from selected chords while requiring only a minimum amount of performance sophistication and dexterity. In the preferred embodiment, a plural... | 04/24/1984 |
| 4440056 | Envelope wave shape signal generator for an electronic musical instrument An envelope wave shape for each musical tone wave shape is generated per each key operation. The rate of change of the envelope wave shape to be generated are switched at timings corresponding to key operation speed of an operated key, thereby enabling an... | 04/03/1984 |
| 4422362 | Electronic musical instrument of a formant synthesis type A musical tone is synthesized by frequency modulation which realizes a desired fixed formant. A first accumulator repeatedly adds a constant corresponding to a center frequency of the fixed formant at a regular time interval to generate phase angle data o... | 12/27/1983 |
| 4417494 | Automatic performing apparatus of electronic musical instrument An automatic performing apparatus of an electronic musical instrument comprises a memory for storing musical note data representing progression of a music to be played and control data for controlling such a generation mode of music tones being generated ... | 11/29/1983 |
| 4411185 | Touch responsive keyboard electronic musical instrument A touch responsive keyboard musical instrument is provided with an array of keyboard switches arranged in octave groups and connected in parallel octaves. A motion transducer is attached to each keyswitch so that a transducer signal is generated correspon... | 10/25/1983 |
| 4388851 | Non-volatile memory system for an electronic musical instrument A non-volatile memory system for an electronic musical instrument having a plurality of player actuatable instrument controls, comprises a readable, writable memory. The memory includes addressing inputs and data input/outputs. The data input/outputs are ... | 06/21/1983 |
| 4362934 | Velocity sensing device using opto-electronic switches A musical synthesizer keyboard has a plurality of keys mounted so that each key may be displaced along and return along a locus of movement and where during travel in either direction along said locus a key causes a change of state in each of two correspo... | 12/07/1982 |
| 4351220 | Electronic musical instrument of digital processing type In an electronic musical instrument of a digital processing type, an operation of a key causes the generation of a digital value corresponding to the operated key and a tone having a frequency determined by that digital value is produced. The instrument c... | 09/28/1982 |
| 4351221 | Player piano recording system A player piano recording system has photosensor flags secured to the undersides of the piano keys, vertical movement of which is detected by horizontally adjustable photosensors to produce "key played" and key velocity signals which supplied to a micropro... | 09/28/1982 |
| 4347772 | Electronic musical instruments capable of varying tone pitch during one key depression For the purpose of sequentially varying a tone pitch of a generated musical tone, a variation information generator is provided which is operable by a performer to generate a variation information designating an arvitrary variation rate of the tone pitch.... | 09/07/1982 |
| 4301704 | Electronic musical instrument An electronic musical instrument generates musical tone signals by digitally executing the calculations of equations representing frequency modulation. The instrument comprises a keyboard information generating circuit for generating key information conce... | 11/24/1981 |
| 4263829 | Trill performance circuit in electronic musical instrument An electronic musical instrument is of a type in which a particular note tone and tones corresponding to the remaining notes among depressed keys are alternately and repeatedly produced in accordance with tone production timing signals having a predetermi... | 04/28/1981 |
| 4231276 | Electronic musical instrument of waveshape memory type In an electronic musical instrument of a keyboard type wherein waveshapes with different tone colors read out from waveshape memories are mixed together at a mixing ratio according to a control signal and the resultant signal is converted to a correspondi... | 11/04/1980 |
| 4195545 | Digital touch response circuit of electronic musical instrument In a digital touch response circuit or touch signal processing circuit for producing a control waveform signal to control a musical tone to be produced in response to a player's finger touch on a key, digital touch data representing a player's instantaneo... | 04/01/1980 |
| 4178825 | Musical tone synthesizer for generating a marimba effect A tone synthesizer generating a marimba effect in which two percussion notes are sounded alternately an ocatve interval apart, simultaneously with and in response to the playing of a sustained note by depressing a key. The marimba tones are synthesized by... | 12/18/1979 |
| 4176578 | System for encoding of bass and treble expression effects while recording from the keyboard of an electronic player piano There is disclosed a system for encoding of bass and treble expression effects while recording from the keyboard of an electronic player piano wherein the intensity of the music being recorded is reflected in variations in the power of the acoustic wavefo... | 12/04/1979 |
