Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
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| Number | Title | Issue Date |
| 8063295 | Method and system for video and film recommendation An artificial intelligence video analysis recommendation system and method is provided that allows video viewers to discover new videos and video producers to evaluate the potential success of a new project as well as to understand the perceptual factors beneath aud... | 11/22/2011 |
| 8053659 | Music intelligence universe server An artificial intelligence song/music recommendation system and method is provided that allows music shoppers to discover new music. The system and method accomplish these tasks by analyzing a database of music in order to identify key similarities between different... | 11/08/2011 |
| 7982117 | Music intelligence universe server An artificial intelligence song/music recommendation system and method is provided that allows music shoppers to discover new music. The system and method accomplish these tasks by analyzing a database of music in order to identify key similarities between different... | 07/19/2011 |
| 7286980 | Speech processing apparatus and method for enhancing speech information and suppressing noise in spectral divisions of a speech signal A speech processing apparatus and method may identify divisions of a signal spectrum as having a speech component or having no speech component. A comb filter is generated, based on a high-accuracy speech pitch obtained in the identified speech component divisions, ... | 10/23/2007 |
| 7282632 | Apparatus and method for changing a segmentation of an audio piece For changing a segmentation of an audio piece after a segment class assignment, at first a short segment is selected, which has a length shorter than a predetermined minimum length. This short segment is preferably merged with the corresponding successor segment or ... | 10/16/2007 |
| 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 |
| 7091409 | Music feature extraction using wavelet coefficient histograms A music classification technique computes histograms of Daubechies wavelet coefficients at various frequency subbands with various resolutions. The coefficients are then used as an input to a machine learning technique to identify the genre and emotional content of ... | 08/15/2006 |
| 7081579 | Method and system for music recommendation An artificial intelligence song/music recommendation system and method is provided that allows music shoppers to discover new music. The system and method accomplish these tasks by analyzing a database of music in order to identify key similarities between different... | 07/25/2006 |
| 7053290 | Music reproducing apparatus and music reproducing method A candidate piece specifying unit 6 specifies, as a first candidate piece, a musical piece whose musical piece parameter includes a first factor that is larger than a first factor of a musical piece currently being played from among musical pieces, and specif... | 05/30/2006 |
| 7035742 | Apparatus and method for characterizing an information signal For characterizing an information signal having an amplitude-time waveform with local extreme values, at first the local extreme values of the information signal are determined, wherein a local extreme value is defined by a time instant and an amplitude. Furthermore... | 04/25/2006 |
| 6951977 | Method and device for smoothing a melody line segment A tone smoothing is performed such that to each time section of a melody line segment a number is associated such that for all groups of directly neighboring time sections, to which the same spectral component is associated by the melody line segment, the numbers as... | 10/04/2005 |
| 6938224 | Method for modeling noise emitted by digital circuits A method of predicting the electromagnetic noise emitted by a digital circuit on an integrated circuit is disclosed. In accordance with the illustrative embodiment, the output of each digital circuit element in the digital circuit is considered as a bit stream. All ... | 08/30/2005 |
| 6906695 | Touch control apparatus and touch control method that can be applied to electronic instrument A touch curve memory 110 stores therein a touch curve formed by velocity values corresponding to touch data generated by a keyboard device 20. A correction coefficient generator 10 generates a correction coefficient composed of a ratio of one of... | 06/14/2005 |
| 6798886 | Method of signal shredding Methods for identifying the harmonic content of a single signal contained within a more complex signal and subsequently processing or separating signals contained within a complex mixture of signals into their constituent parts. Also, a single signal may be selectiv... | 09/28/2004 |
| 6054646 | Sound-based event control using timbral analysis Arbitrary input sounds are analyzed and the coefficients of a low-dimensional representation, such as LPC or MFCC, are determined as a measure of the timbre of the sounds. The coefficients can be employed in different ways to control output events, such a... | 04/25/2000 |
| 6020550 | Method for building a timbre sample databank for a waveform table An improved method for forming a timbre sample (Q sample) is described. A first Q sample is extracted. A fixed length of the first Q sample is extracted to form a first QL. A portion of the first Q sample other than the first QL is treated as a first pre-... | 02/01/2000 |
| 5900568 | Method for automatic sound synthesis A method for automatically adjusting the parameters of a synthesizer includes generating a first synthesized signal based on an initial set of synthesizer parameters, comparing the first synthesized signal to an input sound signal, and generating a contro... | 05/04/1999 |
| 5834672 | Non-linear tone generator A method and apparatus for producing a tone (e.g. for music) without use of a waveform memory and using a feedback loop. The feedback loop includes a waveform generator which calculates, in real time, a parabolic approximation to a sine wave. The feedback... | 11/10/1998 |
| 5342990 | Digital sampling instrument employing cache-memory A digital sampling instrument for multi-channel interpolatative playback of digital audio data stored in a waveform memory provides improved interpolation of musical sounds by use of a cache memory. The present invention includes a plurality of interpolat... | 08/30/1994 |
| 5283387 | Musical sound generator with single signal processing means A single signal processor performs a pitch process which produces musical sound waveform data having a frequency corresponding to received pitch data, a filtering process for filtering the generated musical sound waveform data, and an amplitude process wh... | 02/01/1994 |
| 5196639 | Method and apparatus for producing an electronic representation of a musical sound using coerced harmonics A technique for digitally processing a counterpart of a musical sound first transforms a set of time-domain samples of the sound into frequency-domain counterparts and then gradually coerces the frequency-domain counterparts into integer multiples of a fu... | 03/23/1993 |
| 5111727 | Digital sampling instrument for digital audio data A digital sampling instrument for multi-channel interpolative playback of digital audio data stored in a waveform memory provides improved interpolation of musical sounds by using seven or eight surrounding points. The present invention may be efficiently... | 05/12/1992 |
| 5048390 | Tone visualizing apparatus A tone visualizing apparatus for visualizing an inputted audio signal to thereby display an image corresponding to this audio signal includes at least a detector, image display (such as a CRT display unit) and display controller. The detector detects char... | 09/17/1991 |
| 4991485 | Scaling of each harmonic coefficient for electronic musical instrument A method of scaling a harmonic coefficient is employed, and envelope smaller in number than the number of harmonic orders are produced. One of the envelope is selected for each harmonic order and output as a scaling value. This enables the production of a... | 02/12/1991 |
| 4922795 | Tone signal forming device A parameter generation circuit sequentially generates different tone forming parameters by timewise changing them in a predetermined sequence. A sequence control circuit performs a control so as to repeat the sequential generation of the different tone fo... | 05/08/1990 |
| 4805509 | Electronic musical instrument capable of storing and reproducing tone waveform data at different timings An electronic musical instrument has a memory capable of storing musical tone waveform data therein. A read circuit reads out the musical tone waveform data from the memory and supplies the readout data to a musical tone generator. The musical tone genera... | 02/21/1989 |
| 4800794 | Harmonic coefficient generator for an electronic musical instrument A keyboard operated electronic musical instrument is disclosed which has a number of tone generators each of which is assigned to an actuated keyswitch. Musical waveshapes are generated by a computation using a set of harmonic coefficients. Apparatus is d... | 01/31/1989 |
| 4735123 | Generation of time variant harmonies in an electronic musical instrument A keyboard operated musical instrument is disclosed in which musical tones having a variable spectral content are produced from waveshape data values that read out from a stored set of waveshape data points. A second set of data values is computed at the ... | 04/05/1988 |
| 4697490 | Musical tone generator using incremental harmonic variation A keyboard operated musical instrument is disclosed in which musical tones are created by computing waveshapes from a set of harmonic coefficients. Tones with time variant spectra are obtained by scaling each harmonic coefficient in response to a stored s... | 10/06/1987 |
| 4677889 | Harmonic interpolation for producing time variant tones in 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 from an interpolated sequence of harmonic coefficient... | 07/07/1987 |
| 4656912 | Tone synthesis using harmonic time series modulation 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 corresponding to a peri... | 04/14/1987 |
| 4649787 | Ensemble tone generation in a musical instrument In a musical instrument in which a plurality of data words corresponding to the amplitudes of a corresponding number of evenly spaced points defining a cycle of an audible musical waveform are transformed at an average rate corresponding to the fundamenta... | 03/17/1987 |
| 4646608 | Phased memory addressing for noise reduction in an electronic musical instrument In a musical instrument in which a plurality of data words corresponding to the amplitudes of a corresponding number of evenly spaced points defining a cycle of an audible musical waveform are transformed at an average rate corresponding to the fundamenta... | 03/03/1987 |
| 4646612 | Musical tone signal generating apparatus employing sampling of harmonic coefficients In a musical tone signal generating apparatus of a harmonic combination system, the coefficient values of a continuous harmonic to be formed are discretely sampled. Among the sampled values, the values between each two adjacent sampling points (i.e., each... | 03/03/1987 |
| 4638709 | Electronic musical instrument with temporal variation data generating circuit and interpolation circuit In an electronic musical instrument which generates a musical waveform by calculating the waveform amplitude value at each sample point through Fourier synthesis, temporal variations of the musical waveform and its timbre variations in accordance with a t... | 01/27/1987 |
| 4638707 | Data mask tone variation in 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. The generated musical tones are selectively varied in tone color by multiplying tone data values by a masking f... | 01/27/1987 |
| 4608903 | Single side-band harmonic extension in a polyphonic tone synthesizer A keyboard operated musical instrument is disclosed in which a musical tone having an extended range of harmonics is produced by combining two waveshapes at different fundamental frequencies. The first waveshape has a fundamental frequency corresponding t... | 09/02/1986 |
| 4601229 | Polyphonic tone synthesizer with harmonic range selection In a keyboard operated electronic musical instrument in which a plurality of data words corresponding to the amplitudes of a corresponding number of evenly spaced points defining a cycle of an audible musical waveform are transformed at an average rate co... | 07/22/1986 |
| 4579032 | Computation time reduction in a polyphonic tone synthesizer 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... | 04/01/1986 |
| 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 |
