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| Number | Title | Issue Date |
| 7388144 | Method and device for storing main information with associated additional information incorporated therein To store main information with associated additional information incorporated therein, data constituting the additional information is divided into a plurality of small-size data pieces of, e.g., one bit. Then, the respective values of particular ones of predetermin... | 06/17/2008 |
| 7119587 | High frequency divider state correction circuit The present invention provides for state correction. A first value in a state circuit is received from a flip flop. The received value is transmitted to a second flip flop. The received value within the second flip flop is altered if an error condition arises. The r... | 10/10/2006 |
| 7061284 | High frequency divider state correction circuit with data path correction The present invention provides for state correction. A first flip flop coupled to a second flip flop. A state correction circuit coupled to the output of the second flip flop. A third flip flop is coupled to the output of the state correction circuit. A fourth flip ... | 06/13/2006 |
| 6140569 | Memory reduction method and apparatus for variable frequency dividers Method and apparatus reduce the memory capacity needed to store control codes used to obtain specified frequency values that represent musical tones with a predetermined relationship. The predetermined relationship of the musical tones allows a dual-tone ... | 10/31/2000 |
| 5614687 | Apparatus for detecting the number of beats An apparatus for detecting the number of beats in that second time measuring means starts to measure time from a time point when the level of a predetermined frequency component of an input audio signal is once higher than a predetermined level and, after... | 03/25/1997 |
| 4763553 | Electronic musical instrument In an electronic musical instrument of the waveshape memory type including at least one waveshape memory for storing and reproducing sample values of a musical sound wave to be generated, the waveshape memory stores the sample values of the complete waves... | 08/16/1988 |
| 4701956 | Tone signal processing device A digital filter is provided between a tone signal generation circuit which supplies a digital tone signal in accordance with a first sampling frequency and a sampling circuit which resamples this digital tone signal in accordance with a second sampling f... | 10/20/1987 |
| 4699518 | Musical scale generating circuit A musical scale generating circuit comprises an oscillator, a programmable frequency divider for frequency-dividing an output signal from the oscillator, a tone generating circuit for generating a tone, and a frequency dividing ratio data output circuit f... | 10/13/1987 |
| 4619174 | Electronic musical instrument An electronic musical instrument are provided a plurality of tone production channels to produce musical tones polyphonically. Each of the tone production channel includes a first counter which divides clock pulses by either one of N and N+1 to deliver an... | 10/28/1986 |
| 4566362 | Synchronizing signal generator A synchronizing signal generator generates synchronizing signals in synchronism with the performance of a musical piece even from an intermediate point of the musical piece. More specifically, upon actuation of a manual switch (102) in accordance with a m... | 01/28/1986 |
| 4561337 | Digital electronic musical instrument of pitch synchronous sampling type A digital electronic musical instrument is constituted by detector, a phase angle, information generator and a musical tone generator. The detector detects an end portion of a period of a musical tone to be produced. The phase angle information generator ... | 12/31/1985 |
| 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 |
| 4532848 | Generation of mutation pitches in an electronic musical instrument A musical waveshape generator is disclosed in which musical tones at mutation pitches corresponding to an actuated keyswitch are generated by selected attenuation of overtones of a square wave signal. A harmonic suppression means is described which is a c... | 08/06/1985 |
| 4522099 | Tone generator A tone generator as disclosed that produces a specified waveform by reading out values contained in one of a number of arrays stored in an EPROM. Variations of the desired waveform are stored in a number of these arrays. A microprocessor is used to select... | 06/11/1985 |
| 4519044 | Small-sized electronic calculator capable of functioning as a musical instrument When a mode changeover switch is shifted to musical instrument mode position and a key scale assigning key is operated, symbol ".music-sharp." or "b" is displayed on a display means according to the selected key scale. Numeral keys and a decimal point key... | 05/21/1985 |
| 4508000 | Frequency-selectable signal generator Disclosed is a frequency-selectable signal generator in which a numeric datum is parallel-transferred to a full adder circuit repeatedly under the control of clock pulse signals, thereby outputting an overflow signal, which is a precise division of accumu... | 04/02/1985 |
| 4442748 | Frequency divider for electronic musical instrument A frequency divider which divides clock pulses to obtain the clock frequency of a desired dividing ratio comprises a binary counter, cycle data forming circuit and inhibit circuit to which the dividing ratio is fed in the form of the dividing ratio data. ... | 04/17/1984 |
| 4442746 | Electronic organ having an improved tone generator system A tone generator system for an electronic organ, which incorporates N programmable generators (where N is less than 12, and typically 7) which forms a system having the ability to sound notes of N different nomenclature tones at one time. A microprocessor... | 04/17/1984 |
| 4434696 | Instrument for comparing equal temperament and just intonation Equal-ratio scales offer a choice of semitone accuracies ranging from a thousandth cent to a millionth of a cent, any note of which may be selected as a reference for a fully chromatic just-intonation scale whose ratios are absolute and may be modulated i... | 03/06/1984 |
| 4428267 | Digital semiconductor circuit for an electronic organ A digital semiconductor circuit for an electronic organ has a plurality of control inputs addressed via a keyboard and corresponding in number to the number of keys of the organ keyboard, and a plurality of audiofrequency signal inputs addressed with peri... | 01/31/1984 |
| 4386546 | Phase locking system for an electronic organ An electronic keyboard musical instrument comprising a multiplexed keyboard and a programmable microcomputer interfaced between the keyboard and a system of capture tone generators, and including means for causing phase locking between the tone generators... | 06/07/1983 |
| 4380184 | Electronic musical instrument An electronic musical instrument has a generator assigner for supplying note data and octave data by key stroke entry, a top octave synthesizer for generating 12 of the highest pitch signals for each note, a circuit for selecting one highest pitch signal ... | 04/19/1983 |
| 4357850 | Tone generator system for electronic musical instruments A tone generator system for electronic musical instruments includes a voltage-regulated, high-frequency oscillator. The output of the oscillator is connected with the inputs of first and second 12-tone divider circuits having outputs for transmission of f... | 11/09/1982 |
| 4351213 | Player for digitally recorded music An apparatus (10) for transforming digital data stored in a memory (18) into sounds is disclosed. The apparatus includes an oscillator (12) which drives an address selector (14). The address selector drives the memory. A note generator (20) generates an a... | 09/28/1982 |
| 4348928 | Electronic musical instrument An electronic musical instrument of digital processing in which required musical waveshape data are calculated by a tone control device to obtain a complex musical waveshape and the complex musical waveshape is read out at a read frequency produced by a k... | 09/14/1982 |
| 4338844 | Tone source circuit for electronic musical instruments A tone source circuit for electronic musical instruments, in which a unit phase coefficient corresponding to a note code required by a key depression is read out from a phase coefficient memory of a tone generating part for each time division channel; the... | 07/13/1982 |
| 4333374 | Submultiple-related-frequency wave generator A digital oscillator generates a basic pulse having a period which is a predetermined large number of times of a clock pulse period. During the basic pulse period are allotted a predetermined small number of time slots defining submultiple frequency chann... | 06/08/1982 |
| 4332181 | Electronic musical instrument with means for selecting tone clock numbers A circuit for obtaining a musical-scale frequency in an electronic musical instrument comprises a multi-stage binary counter for counting reference clock signals to obtain a respective musical-scale frequency based on the tempered scale, circuit means for... | 06/01/1982 |
| 4332182 | Apparatus for transposing passages in electronic musical instruments An electronic organ, piano or accordion has a transposing apparatus wherein a voltage-regulated high-frequency oscillator transmits high frequency signals to the input of a 12-tone divider circuit whose outputs transmit tone frequency signals to the tone ... | 06/01/1982 |
| 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 |
| 4297935 | Divider keyer circuit for synthesis organ A divider keyer circuit arrangement for a synthesis organ utilizing four integrated circuit chips to generate the notes for a 61 key manual with 9 harmonic drawbacks or tabs. On-chip cross wiring and the use of clock lines for synchronization pulses and o... | 11/03/1981 |
| 4291603 | Electronic organ An electronic organ has a tone generating system for producing tones corresponding to notes of a musical scale. The tones and combinations thereof are selectable to provide different characteristics or "voices" which duplicate the various voices which are... | 09/29/1981 |
| 4279185 | Electronic music sampling techniques The disclosure describes improved apparatus for sampling a digitally-stored waveshape only at a rate 2N times the fundamental frequency of a note synthesized, where N is an integer. The apparatus includes a digital memory for storing a digital ... | 07/21/1981 |
| 4256002 | Large scale integrated circuit generator chip for electronic organ In an electronic organ or the like constructed of a plurality of large scale integrated circuit (LSI) chips, the present disclosure relates to a generator chip. The chip is operative over one octave of notes, and a string of chips is cascaded to provide a... | 03/17/1981 |
| 4253366 | 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 chord and bass frequency generation and identification. It automatically coordinates with another chip in rhy... | 03/03/1981 |
| 4245336 | Electronic tone generator A digitized multifrequency tone generator comprising a memory having N readable word locations with each location containing an amplitude representing binary word, and with the total N binary words sequentially and collectively representing a period T | 01/13/1981 |
| 4242936 | Automatic rhythm generator An automatic rhythm generator for use in an electronic organ is made more efficient, from the standpoint of rhythm pattern storage, by use of a zero suppression technique. Null instructions, the sole function of which is to allow a clock interval to pass ... | 01/06/1981 |
| 4242935 | Musical tone generator system using multiple frequency synthesizers For generating tones in an electronic musical instrument, there are provided multiple master frequency sources, a different source for each octave, differing in frequency from each other by a factor which differs from two by at least one semitone, each of... | 01/06/1981 |
| 4240318 | Portamento and glide tone generator having multimode clock circuit A musical instrument tone generator comprises a clock circuit including means for developing an interval code representing the number of musical intervals to be swept by a tone signal. An output clock signal is produced in response to the interval code fo... | 12/23/1980 |
| 4230012 | Musical instrument and method for use therein Methods and apparatus are disclosed which are utilized in providing a musical instrument useful for composing, teaching, learning and performing music. The instrument includes a pitch detector which responds to an applied input signal to produce and octav... | 10/28/1980 |
