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| Number | Title | Issue Date |
| 8008565 | Performance apparatus and tone generation method Plural key switches are arranged in two dimensions along X- and Y-coordinate axes, and an X-coordinate position of each of the key switches is associated with tone generation timing while a Y-coordinate position of each of the key switches is associated with a tone ... | 08/30/2011 |
| RE40364 | Tone signal processing apparatus with intermittent clock supply A music apparatus is constructed for processing a music tone signal in response to a clock signal at each sampling period. In the music apparatus, a clock generator generates the clock signal. A signal processor is operable in synchronization to the clock signal for... | 06/10/2008 |
| 7102068 | Waveform data analysis method and apparatus suitable for waveform expansion/compression control Filtering is performed on original waveform to remove components of a predetermined frequency band from the waveform, and dividing positions of the original waveform data are determined on the basis of envelope levels of the filtered waveform. The dividing positions... | 09/05/2006 |
| 7088835 | Wavetable audio synthesizer with left offset, right offset and effects volume control A digital wavetable audio synthesizer is described. A synthesizer volume generator, which has several modes of controlling the volume, adds envelope, right offset, left offset, and effects volume to the data. The data can be placed in one of sixteen fixed stereo pan... | 08/08/2006 |
| 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 |
| 6506968 | Sound source device The present invention relates to a sound source device, and more particularly, it aims at providing a sound source device, in which a sufficient sound emitting quantity can be attained, capable of obtaining a reproduced sound of musically rich expression.... | 01/14/2003 |
| 6441290 | Apparatus and method for reproducing or recording, via buffer memory, sample data supplied from storage device Sample data stored in a storage device, such as a hard disk, are sequentially read out and transferred to a buffer memory, and the sample data are read out from the buffer memory, one sample per sampling period. Sample data at addresses of the buffer memo... | 08/27/2002 |
| 6359206 | Tone signal processing apparatus with intermittent clock supply A music apparatus is constructed for processing a music tone signal in response to a clock signal at each sampling period. In the music apparatus, a clock generator generates the clock signal. A signal processor is operable in synchronization to the clock... | 03/19/2002 |
| 6195736 | Method for paging software wavetable synthesis samples Wavetables for a wavetable synthesizer are divided into nonpaged and paged segments. The nonpaged segments are page locked in system memory, so that the wavetable may beginning playing when referenced. The paged segments are paged into memory as needed, a... | 02/27/2001 |
| 5509079 | Back-masking effect generator The present invention is an audio special effect generator which simulates, almost in real time, the sound of an input audio signal being played in reverse. An input audio signal is digitized and read into memory locations in an SRAM which are sequentiall... | 04/16/1996 |
| 5418321 | Audio channel system for providing an analog signal corresponding to a sound waveform in a computer system An audio channel system provides an analog signal corresponding to a sound waveform in a computer system. The audio channel system includes a plurality of audio channels. Each audio channel contains a predetermined number of audio data samples for produci... | 05/23/1995 |
| 5371315 | Waveform signal generating apparatus and method for waveform editing system The position of a connecting portion between waveforms can be arbitrarily set when a plurality of waveform data is obtained by changing pitch widths of stored external sound waveform data, when a read rate of the waveform data is increased or decreased an... | 12/06/1994 |
| 4953437 | Method and apparatus for digitally generating musical notes An electronic musical instrument of the digital synthesis type that uses digital processing techniques to impart not only the desired harmonic structure and pitch, but also to impart the correct amplitude and envelope. Only after all of the harmonic struc... | 09/04/1990 |
| 4909121 | Tone signal generation device with reasonance tone effect A circuit for adding a resonance tone to a tone signal to be generated is provided. When a damper operator is not operated, the resonance tone is not added but an ordinary tone signal is generated. When the damper operator has been operated, the resonance... | 03/20/1990 |
| 4848938 | Ring-shaped machine part A ring-shaped machine part of relatively hard material with an essentially cylindrical seating surface which has at least one ring-shaped milled section on which a machine part of relatively soft material with a corresponding seating surface can be seated... | 07/18/1989 |
| 4843938 | Musical tone producing device of waveshape memory readout In a typical musical tone producing device of a full waveshape readout type, a full waveshape of a musical tone to be produced from the start to the end of sounding or a rise portion and a part of the waveshape following the rise portion of the musical to... | 07/04/1989 |
| 4836075 | Musical cube The present invention relates to an improved musical cube. The cube includes circuitry mounted within its cubical housing with the circuitry including three two-axis switches with each such switch having a central open position and two positions, one to e... | 06/06/1989 |
| 4785706 | Apparatus for generating a musical tone signal with tone color variations independent of tone pitch A musical tone signal generating apparatus generates a musical tone signal whose tone color can be changed independently of a pitch or a frequency of the musical tone signal. The musical tone signal generating apparatus comprises a shift register on which... | 11/22/1988 |
| 4781096 | Musical tone generating apparatus A musical tone generating apparatus for an electronic musical instrument utilizing a data compression system is disclosed. This musical tone generating apparatus is basically constructed by a memory storing difference data and a data reproduction circuit.... | 11/01/1988 |
| 4649783 | Wavetable-modification instrument and method for generating musical sound A musical instrument employing probabilistic wavetable-modification method of producing musical sound. A randomly initialized wavetable which is periodically accessed to provide an output signal which determines the musical sound. The output signal from t... | 03/17/1987 |
| 4549459 | Integral and a differential waveshape generator 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. Musical tones are produced by computing a master data set which defines the data points for a period of the mus... | 10/29/1985 |
| 4467688 | Polyphonic musical tone generator A keyboard operated electronic musical instrument is disclosed which has a number of tone generators that are assigned to actuated keyswitches. The tone generation is produced by sequentially and repetitively accessing a memory containing a set of data po... | 08/28/1984 |
| 4446770 | Digital tone generation system utilizing fixed duration time functions A tone generation system intended primarily for use in electronic musical instruments wherein a digital representation of a harmonically rich waveform is sampled, and a musical tone is produced therefrom. The stored waveform could be the four term Blackma... | 05/08/1984 |
| 4351218 | Recursive formant generator for an electronic musical instrument A sliding formant effect is produced in a tone generator of the type in which wave shape data points are sequentially and repetitively read out of a memory at a rate corresponding to the fundamental pitch of a musical tone. The formant effect is obtained ... | 09/28/1982 |
| 4351219 | Digital tone generation system utilizing fixed duration time functions A tone generation system intended primarily for use in electronic musical instruments wherein a digital representation of a harmonically rich waveform is sampled, and a musical tone is produced therefrom. The stored waveform could be the four term Blackma... | 09/28/1982 |
| 4258602 | Electronic keyboard musical instrument of wave memory reading type In an electronic keyboard musical instrument, the operation of a key causes a corresponding frequency information signal to be read out of a frequency information memory. The frequency information signal represents a counting number and is repeatedly accu... | 03/31/1981 |
| 4213366 | Electronic musical instrument of wave memory reading type An electronic musical instrument is provided with a plurality of wave shape memories storing different musical tone wave shapes of different memory sizes for different tone ranges. The memory for the treble tone is of a small size and that for the bass to... | 07/22/1980 |
| 4201105 | Real time digital sound synthesizer Linearly binary-coded digital control signals representing specific time segments of musical sounds are used in part to control stepped ramp signal generators in a digital synthesizer which runs continuously on a fixed program. The ramp signals are used t... | 05/06/1980 |
| 4184402 | Electronic musical instrument A digital electronic musical instrument which produces musical notes by approximately reproducing a waveshape based on information of points of extremal values on a musical waveshape, storing the approximate waveshape after sampling it with the number of ... | 01/22/1980 |
| 4183275 | Electronic musical instrument The musical instrument is of a waveform memory device read out type and comprises a frequency information generator for generating a plurality of sets of frequency informations each set consisting of a subplurality of frequency informations and correspond... | 01/15/1980 |
| 4176577 | Electronic musical instrument of waveshape memory reading type In an electronic musical instrument comprising a keyboard including a plurality of keys, a frequency information memory device for storing frequency informations corresponding to respective keys, a plurality of musical tone forming means including a waves... | 12/04/1979 |
| 4174649 | Electronic musical instrument An electronic musical instrument which has a key assignor or assignors of one or more channels for generating and temporarily storing key code corresponding to key depression and release, respectively, a memory for storing waveshape information such as in... | 11/20/1979 |
| 4119005 | System for generating tone source waveshapes The system comprises a frequency number memory device for storing information regarding the frequencies of respective tones, a keyboard switch for reading out frequency number information corresponding thereto from the memory device, an address generator ... | 10/10/1978 |
