Class 84/639 - Photoelectric

Subclass of Class 84 - Music
Definition: Subject matter including optical and electrical means for
No. of patents: 39
Last issue date: 03/04/2008

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Number	Title	Issue Date
7339105	Automatic musical performance device Provide an automatic musical performance device, which is capable of giving a concert magic function in an acoustic instrument with a feeling of normally playing the acoustic instrument. A time period Tv between two points, and a tempo Tmp found based on a ti...	03/04/2008
7132643	Optical transducer having optical modulator in the vicinity of rotational axis of moving object and musical instrument using the same An optical transducer includes a photo-electric converter supported by a shank flange rail and optical modulators respectively attached to hammers of an automatic player piano; since a neck portion makes a photo-modulating pattern closer to the rotational axis of ea...	11/07/2006
7093962	Light emitting device and method of using same An apparatus and method for strategically illuminating a darkened area. The present invention may be used by law enforcement to illuminate an area without law enforcement officials having to reveal their position, which is the case if flashlights or other lighting m...	08/22/2006
6713751	Easily assembled optical fiber sensor and musical instrument using the same An array of optical fiber sensors is installed in an automatic player piano for monitoring the hammers, and a data processing system produces music data codes through the analysis on the current hammer positions reported by the optical fiber sensors, wherein each op...	03/30/2004
6534700	Automated compilation of music During mixing of two musical tracks, the variations in combined output volume are reduced by analyzing either the intrinsic amplitude at which each track was mastered or the output amplitude (i.e. subsequent to amplification of the audio signal), and modi...	03/18/2003
6232539	Music organizer and entertainment center A music organizer and entertainment center provides a center having a microprocessor, sound card functions and high-volume data storage and retrieval units for playing back music according to a variety of predetermined categories. Music can be played back...	05/15/2001
6008446	Synthesizer system utilizing mass storage devices for real time, low latency access of musical instrument digital samples A synthesizer system includes a CPU and host memory operating a software routine. The software routine stores a first part of each waveform signal in a sample pool of host memory and provides remaining portions of selected musical sounds from the hard dri...	12/28/1999
5969283	Music organizer and entertainment center A music organizer and entertainment center provides a center having a microprocessor, sound card functions and high-volume data storage and retrieval units for playing back music according to a variety of predetermined categories. Music can be played back...	10/19/1999
5925843	Song identification and synchronization A computer program for an interactive computer music game is stored on a medium that can be read by a general purpose computer. When read and executed, the program causes the computer to perform functions, including associating a music track on a user com...	07/20/1999
5670729	Virtual music instrument with a novel input device A virtual musical instrument including a hand-held accessory of a type that is intended to be brought into contact with a musical instrument so as to play that instrument. The hand-held accessory includes a switch which, in response to the hand-held acces...	09/23/1997
5627900	Optical data cards for operating sound synthesizer system An optical data storage and retrieval system uses printed cards having a plurality of parallel tracks of contrasting fields representing digital 1's and 0's. A timing track is included as one of the parallel tracks. The card is manually read by a plural p...	05/06/1997
5574243	Melody controlling apparatus for music accompaniment playing system the music accompaniment playing system and melody controlling method for controlling and changing the tonality of the melody using the MIDI standard A melody controlling apparatus is provided with: a reproducing device for reproducing first digital sound source controlling information and melody controlling information related to the first digital sound source controlling information; a memory for sto...	11/12/1996
5574239	Video-song accompaniment apparatus and method for displaying reserved song A method of displaying a title and lyrics of the first measure of a reserved song before the end of a currently performed song includes steps for calculating remaining time by comparing total performance time with an elapsed time of a currently performed ...	11/12/1996
5446791	Sound synthesizer system operable by optical data cards An optical data storage and retrieval system uses printed cards having a plurality of parallel tracks of contrasting fields representing digital 1's and 0's. A timing track is included as one of the parallel tracks. The card is manually read by a plural p...	08/29/1995
5442168	Dynamically-activated optical instrument for producing control signals having a self-calibration means An optical controller is capable of surrounding a player with a radiation screen from a plurality of panels, and enables the player to produce control signals for interface with a controlled instrument such as a musical instrument, a video game processor,...	08/15/1995
5414256	Apparatus for and method of controlling a device by sensing radiation having an emission space and a sensing space An optical controller is capable of surrounding a player with a radiation screen from a plurality of panels, and enables the player to produce control signals for interface with a controlled instrument such as a musical instrument, a video game processor,...	05/09/1995
5294745	Information storage medium and apparatus for reproducing information therefrom An information storage medium has a storage area for storing audio information, the storage area being divided into a plurality of sections. At least either one of the sections stores musical accompaniment information and lead voice information in which w...	03/15/1994
5164532	Performance state detecting unit of player piano system The player piano provides a string-striking mechanism including a hammer driven by corresponding one of eighty-eight keys, and a photo sensor is provided in the vicinity of and also positioned to face with the predetermined member of this string-striking ...	11/17/1992
5081896	Musical tone generating apparatus The musical tone generating apparatus converts a movement of a man into a musical tone. Such movement of the man includes a walking or running movement, a jumping movement, a rubbing movement and a beating movement, a turning movement and the like. More s...	01/21/1992
4968877	VideoHarp The VideoHarp is an optical-scanning device for sensing and tracking the movement of multiple fingers which is then used to control the generation of light or sound or to control the motion of other physical objects. Preferably, the VideoHarp detects the ...	11/06/1990
4813330	Coded card for use in a melody playing apparatus A coded card for use in a melody playing apparatus. The coded card has four quadrants, each quadrant having a different melody therein. A synchronization code is encoded down the center of the card between alternates ones of the quadrants. By alternately ...	03/21/1989
4801141	Light and sound producing ball The present invention is a light producing ball which produces a light in one or more areas of the ball depending upon the orientation of the ball with respect to gravity. A tone generator and speaker are included with the ball to provide unique audio ton...	01/31/1989
4791848	System for facilitating instruction of musicians A system for facilitating instruction of musicians in playing of a stringed musical instrument of the type having a plurality of strings and a plurality of frets such as a guitar. The system includes means for producing signals representing musical notes ...	12/20/1988
4739400	Vision system Apparatus is disclosed for viewing a target volume by two spaced apart viewing devices which create respective two dimensional video picture frame signals. The picture frame signals are divided into discrete areas. If there is an image change in one of th...	04/19/1988
4702140	Solar-powered musical ornaments and novelties These small, inexpensive ornaments and novelties emit music and other sounds (such as simulated voice) when exposed to light, and can be placed out-of-doors in a garden. Being light-powered, they can operate for an essentially indefinite time, even though...	10/27/1987
4690025	Musical entertainment board game An apparatus for playing a portion of a melody so that users of the apparatus can competitively attempt to identify the melody includes a device for encoding the portion of the melody to be played and a device for reproducing the portion of the melody by ...	09/01/1987
4508001	Electronic musical instrument using large-capacity recording medium An electronic musical instrument includes a keyboard having keys, an optical disc memory which is low-speed in access and very large in capacity, a semiconductor memory which is high-speed in access and very small in capacity, and readout circuit. The sem...	04/02/1985
4463649	Waveform producing system employing scanning of a waveform pattern A waveform producing system in which a source of infrared radiation or magnetic flux in a pattern forming section applies energy to a mask constituting a pattern-forming device that passes and masks the radiation or flux for passing the radiation or flux ...	08/07/1984
4437378	Electronic musical instrument Bar code data are read out by a bar code reader from a medium on which predetermined tone data are printed in the form of bar codes and are successively stored in a RAM. When a mode selection switch is set to a position "NAVI", a LED provided in the vicin...	03/20/1984
4422361	Electronic musical instrument Bar codes representing sound information are printed on a marginal portion of a score. Prior to the performance, these bar codes are read out by a bar code reader, whereby chord data represented by these bar codes are successively stored in a memory provi...	12/27/1983
4388849	Signal processing system A signal processing system records and reproduces a music signal which varies repeatedly. The music signal is sampled at a given sampling period and pulse row obtained from the sampling is rearranged into a given pattern to achieve a new pulse row which i...	06/21/1983
4321463	Low frequency laser fiberoptic detector apparatus for musical instruments and intrusion detection An optical fiber is used as a transducer to convert a low frequency mechanical disturbance into low frequency amplitude modulated optical energy. According to the preferred embodiment of the invention transduction occurs by means of a multi-path interfere...	03/23/1982
4261241	Music teaching device and method A device for teaching music using coded indicia representing musical notes and being scannable, a scanning wand and circuits for decoding the signals from the scanning wand and producing audible tones of the proper pitch....	04/14/1981
4182209	Waveform generator A waveform generator used for electronic musical instruments comprising a resistance device having a plurality of power source electrodes and a plurality of potential detecting electrodes. Electric current is supplied to the power source electrodes and po...	01/08/1980
4157051	Indicating organ stop tablet A stop tablet control system for an organ in which the "on" condition of selected stops is indicated by an illuminated light-emitting diode (L.E.D.) mounted in each stop tablet. The stop tablets are pivotally supported on a tablet rail and spring-biased t...	06/05/1979
4145945	Electronic musical instrument employing holographic memory An electronic musical instrument of the waveshape memory type comprises a holographic memory; including a plurality of hologram pictures each carrying information of dots which represent in binary coded notation sample values constituting musical waveshap...	03/27/1979
4018448	Record for the artificial reproduction of sounds There is disclosed a rotatable record for use in the artificial reproduction of sounds, such as musical notes, tones, chords, words, voice phonemes or the like, in which there is at least one endless data track on at least part of which there is recorded ...	04/19/1977
4003284	Electronic musical instrument An electronic musical instrument is provided to produce audible tones by the use of at least a pair of electron beam guns having deflecting means, the output of the guns energizing luminous screens with masks in front of the screens of the tubes upon whic...	01/18/1977
3930430	Photo-electric organ with chiff An electrical organ in which each of the keys of the organ is mechanically coupled to one single pole single throw electrical switch, and a plurality of said switches are each connected to a plurality of photoelectric tone sources through pulse shaping ke...	01/06/1976

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Class 84/639 - Photoelectric