Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
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 |
| 8017855 | Apparatus and method for converting an information signal to a spectral representation with variable resolution The apparatus for converting an information signal from a time to a variable spectral representation includes a means for windowing the information signal, a means for converting the windowed information signal to a spectral representation, and a means for weighting... | 09/13/2011 |
| 7847177 | Digital complex tone generator and corresponding methods Digital complex tone generators include a first tone generator configured to generate a first digital tone with selectable first characteristics including a first frequency, a first phase, and a first amplitude; a second tone generator configured to generate a secon... | 12/07/2010 |
| 7783594 | System and method for enabling individuals to select desired audio Audio item(s) that may be of interest to a user can be selected from a larger collection of audio items. The audio items of interest may be identified by concurrently generating audio from each item in the collection. The audio generated from individual items in the... | 08/24/2010 |
| 7373209 | Sound features extracting apparatus, sound data registering apparatus, sound data retrieving apparatus, and methods and programs for implementing the same The present invention implements a method and an apparatus for retrieving a sound data desired by the user on the basis of its subjective impression over the sound data. The subjective impression on the desired sound data is entered by the user and converted to a nu... | 05/13/2008 |
| 7330769 | Parameterized interactive control of multiple wave table sound generation for video games and other applications In the context of a video game, multimedia presentation or other application, multiple sound sample files are read out simultaneously and mixed together. The volumes and/or pitches of the wave tables are parameterized to allow a single parameter (e.g., power, intens... | 02/12/2008 |
| 7276655 | Music synthesis system The invention relates to a music synthesis system for synthesizing a corresponding digital music output according to commands from a music data file. The music data file comprises a plurality of music data units. Each music data unit records related information of t... | 10/02/2007 |
| 7251596 | Method and device for analyzing a wave signal and method and apparatus for pitch detection The present invention provides a unique wave-trigon transformation (WTT) method for performing transformation process over a wave signal. The present invention also provides a pitch detecting method and apparatus for detecting pitch based on the WTT process as well ... | 07/31/2007 |
| 7249022 | Singing voice-synthesizing method and apparatus and storage medium There are provided a singing voice-synthesizing method and apparatus capable of performing synthesis of natural singing voices close to human singing voices based on performance data being input in real time. Performance data is inputted for each phonetic unit const... | 07/24/2007 |
| 7217879 | Reverberation sound generating apparatus A reverberation apparatus is designed for generating a reverberation sound from an input sound with use of an impulse response based on an instruction. In the reverberation apparatus, a first storage section stores first impulse response data representative of a fir... | 05/15/2007 |
| 7211721 | System and methods for memory-constrained sound synthesis using harmonic coding Systems (100 or 300) and methods (400 or 500) are provided for selecting a post-compression waveform from a post-compression waveform table (106) and supplying it to a synthesis engine (108). The post-compression waveform is... | 05/01/2007 |
| 7149682 | Voice converter with extraction and modification of attribute data An apparatus is constructed for converting an input voice signal into an output voice signal according to a target voice signal. In the apparatus, an input device provides the input voice signal composed of original sinusoidal components and original residual compon... | 12/12/2006 |
| 7124084 | Singing voice-synthesizing method and apparatus and storage medium There are provided a singing voice-synthesizing method and apparatus capable of performing synthesis of natural singing voices close to human singing voices based on performance data being input in real time. Performance data is inputted for each phonetic unit const... | 10/17/2006 |
| 7117154 | Converting apparatus of voice signal by modulation of frequencies and amplitudes of sinusoidal wave components A voice converter synthesizes an output voice signal from an input voice signal and a reference voice signal. In the voice converter, an analyzer device analyzes a plurality of sinusoidal wave components contained in the input voice signal to derive a parameter set ... | 10/03/2006 |
| 7096186 | Device and method for analyzing and representing sound signals in the musical notation Sound signal is received which contains sound characteristics to be represented in musical notation. The characteristics, such as a volume level of the sound signal, are extracted out of the received sound signal, and various parameters for use in subsequent analysi... | 08/22/2006 |
| 7095860 | Audio dynamic control effects synthesizer with or without analyzer A method and apparatus for applying a gain characteristic to an audio signal are provided. Data storing a plurality of gain characteristics at a plurality of different levels is stored in a storage means. The amplitude of an input signal is repeatedly assessed and f... | 08/22/2006 |
| 6992245 | Singing voice synthesizing method A frequency spectrum is detected by analyzing a frequency of a voice waveform corresponding to a voice synthesis unit formed of a phoneme or a phonemic chain. Local peaks are detected on the frequency spectrum, and spectrum distribution regions including the local p... | 01/31/2006 |
| 6931124 | Soft mute circuit A soft mute circuit includes a programmable amplifier controlled by a register. Data is stored in the register from an adder that combines the current data in the register with a second number for increasing or decreasing the gain of the amplifier. A summation circu... | 08/16/2005 |
| 6873955 | Method and apparatus for recording/reproducing or producing a waveform using time position information Partial waveform data representative of a waveform shape variation are extracted from supplied waveform data, and the extracted partial waveform data are stored along with time position information indicative of their respective time positions. In reproduction, the ... | 03/29/2005 |
| 6667433 | Frequency and phase interpolation in sinusoidal model-based music and speech synthesis A quadratic phase interpolation method for synthesis of musical tones incorporates both phase and frequency measurements at the boundaries of a data frame using a weighted least square algorithm approach. The approach assumes that the true frequency and p... | 12/23/2003 |
| 6476308 | Method and apparatus for classifying a musical piece containing plural notes The present invention is directed to classifying a musical piece based on determined characteristics for each of plural notes contained within the piece. Exemplary embodiments accommodate the fact that in a continuous piece of music, the starting and endi... | 11/05/2002 |
| 6235980 | Apparatus and method for generating waveform data for musical tone signal generating apparatus A synthesized strong hit waveform data is generated by synthesizing a strong hit amplitude component separated from a strong hit waveform data generated based on tone of a strong play and a weak hit phase component separated from a weak hit waveform data ... | 05/22/2001 |
| 6160214 | Non-consonance generating device and non-consonance generating method Harmonic signals of frequencies have a relation fn=f1*n* Ýa;1+C*n2 /Ýa;1+C where C is a constant and n is a harmonic number relative to the fundamental frequency f1, are generated and synthesized to produce a modified sound that can be ... | 12/12/2000 |
| 6111183 | Audio signal synthesis system based on probabilistic estimation of time-varying spectra The present invention describes methods and means for estimating the time-varying spectrum of an audio signal based on a conditional probability density function (PDF) of spectral coding vectors conditioned on pitch and loudness values. Using this PDF a t... | 08/29/2000 |
| 6101469 | Formant shift-compensated sound synthesizer and method of operation thereof For use in a synthesizer having a wave source that produces a periodic wave, frequency shifting circuitry for frequency-shifting the periodic wave and waveshaping circuitry for transforming the periodic wave into a waveform containing a formant, the frequ... | 08/08/2000 |
| 6096960 | Period forcing filter for preprocessing sound samples for usage in a wavetable synthesizer A nonperiodic waveform is forced to a periodic character to facilitate looping of the waveform without introducing audible, and thus objectionable, sound artifacts. Nonperiodic waveforms are typically nonperiodic due to the presence of nonharmonic high fr... | 08/01/2000 |
| 5998725 | Musical sound synthesizer and storage medium therefor A musical sound synthesizer generates a predetermined singing sound based on performance data. A compression device determines whether each of a plurality of phonemes forming the predetermined singing sound is a first phoneme to be sounded in accordance w... | 12/07/1999 |
| 5969284 | Music apparatus using boolean and numerical parameters settable by manipulator A parameter setting apparatus is provided in an electronic music instrument for editing a configure of parameters in accordance with a manipulation amount to set a tone generator which creates a desired timbre of musical tones upon setting. In the apparat... | 10/19/1999 |
| 5936182 | Musical tone synthesizer for reproducing a plural series of overtones having different inharmonicities A musical sound synthesizing apparatus synthesizes plural-series overtones having different inharmonicity and amplitude level so as to generate a musical sound close to a natural sound. Inharmonicity coefficients K1 and K2 are read out for each overtone o... | 08/10/1999 |
| 5880392 | Control structure for sound synthesis An improved control structure for music synthesis is provided in which: 1) the sound representation provided to the adaptive function mapper allows for a greatly increased degree of control over the sound produced; and 2) training of the adaptive function... | 03/09/1999 |
| 5872727 | Pitch shift method with conserved timbre An improved method for shifting the pitches of a tone is disclosed. It comprises: (a) subjecting a digitized original waveform to a whitening process using an all-zero filter (AZF) to obtain a whitened waveform; (b) resampling the whitened waveform at a d... | 02/16/1999 |
| 5777249 | Electronic musical instrument with reduced storage of waveform information An electronic musical instrument comprises an analysis section, an excitation-waveform memory and a synthesis section. In the analysis section, difference data, which are calculated between target-sound data and output of an analysis loop, are subjected t... | 07/07/1998 |
| 5744742 | Parametric signal modeling musical synthesizer A parametric signal modeling musical tone synthesizer utilizes a multidimensional filter coefficient space consisting of many sets of filter coefficients to model an instrument. These sets are smoothly interpolated over pitch, intensity, and time. The fil... | 04/28/1998 |
| 5734118 | MIDI playback system A MIDI playback system is described in which a sequencer is characterized by: logic for generating a sequence of events, the sequence comprising groups of events, each group comprising events to be executed within a first time interval, the groups being s... | 03/31/1998 |
| 5684260 | Apparatus and method for generation and synthesis of audio The method of the present invention preferably receives a predetermined number of input values or data from which it may be determined which one of a predetermined number of modulator waveforms is selected and which one of a predetermined number of carrie... | 11/04/1997 |
| 5665931 | Apparatus for and method of generating musical tones According to the invention, formant waveform signals which are waveforms synthesized from frequency components corresponding to formants of musical tones, are stored and read out or generated. When such formant waveform signal is read out or generated, th... | 09/09/1997 |
| 5641929 | Apparatus for and method of generating musical tones Ratios of frequencies of frequency components of formant waveform signals are changed, and consonance of frequency components of a musical tone is controlled. Moreover, amplitudes, frequencies or numbers of formants are controlled depending upon the music... | 06/24/1997 |
| 5627334 | Apparatus for and method of generating musical tones The content of component waveforms of at least one signal is changed in a variety of ways among the formant center signals that are synthesized with the formant waveform signals, making it possible to arbitrarily change the waveform of a musical tone that... | 05/06/1997 |
| 5550320 | Electronic sound generating device for generating musical sound by adding volume fluctuation to predetermined harmonics An electronic sound generating device is proposed which can generate sound that is complex, profound and high in fidelity to acoustic sound. Sound of the acoustic instruments consists of a plurality of harmonics. Some of the harmonics have swings on their... | 08/27/1996 |
| 5536902 | Method of and apparatus for analyzing and synthesizing a sound by extracting and controlling a sound parameter Analysis data are provided which are indicative of plural components making up an original sound waveform. The analysis data are analyzed to obtain a characteristic concerning a predetermined element, and then data indicative of the obtained characteristi... | 07/16/1996 |
| 5218155 | Tone signal processing apparatus for PCM waveform interpolation and filtering A tone signal processing apparatus for time-divisionally reading out tone signal waveforms in units of different channels from a waveform memory for storing a plurality of kinds of tone signal waveforms each consisting of tone data at a plurality of sampl... | 06/08/1993 |
