Patent application number | Description | Published |
20080306739 | SOUND SOURCE SEPARATION SYSTEM - A system capable of separating sound source signals with high precision while improving a convergence rate and convergence precision. A process of updating a current separation matrix W | 12-11-2008 |
20090063605 | SIGNAL PROCESSING DEVICE - A device capable of improving the convergence rate and estimation accuracy in estimating a correlation value. According to a signal processing device, since a window length is adjusted in such a manner to reduce an estimated error of a correlation matrix, the convergence rate and estimation accuracy in estimating the correlation matrix and the correlation value as its off-diagonal element can be improved. Then, in such a high-probability condition that the correlation of plural output signals according to a state is estimated with a high degree of precision, signal processing is performed on the plural signals, so that the state can be estimated with a high degree of precision. | 03-05-2009 |
20100054489 | DEREVERBERATION SYSTEM AND DEREVERBERATION METHOD - Provided is a dereverberation system or the like which copes with an arbitrary condition flexibly and is capable of recognizing a sound or a sound source signal. According to the dereverberation system, an inverse filter (h) is set by using a pseudo-inverse matrix (R | 03-04-2010 |
20100208904 | DEREVERBERATION APPARATUS AND DEREVERBERATION METHOD - A dereverberation apparatus includes a signal selecting unit which selects a sound signal to be used for dereverberation process from a plurality of sound signals, and a dereverberation processing unit which performs the dereverberation process for the selected sound signal. | 08-19-2010 |
20100329472 | REVERBERATION SUPPRESSING APPARATUS AND REVERBERATION SUPPRESSING METHOD - A reverberation suppressing apparatus separating sound source signals based on input signals output from microphones collecting the plurality of sound source signals, includes a sound signal output unit generating sound signals and outputting the generated sound signals, a sound acquiring unit acquiring the input signals from microphones, a first evaluation function calculation unit calculating a separation matrix, the input signals, and the sound source signals, and calculating a first evaluation function, a reverberation component suppressing unit calculating an optimal separation matrix, and suppressing a reverberation component by separating the sound source signals other than the generated sound signals, and a separation matrix updating unit dividing a step-size function, approximating each segment to a linear function, calculating step sizes based on the approximated linear functions, and repeatedly updating the separation matrix so that the degree of separation of the sound source signals exceeds the predetermined value. | 12-30-2010 |
20100329479 | SOUND SOURCE LOCALIZATION APPARATUS AND SOUND SOURCE LOCALIZATION METHOD - A sound source localization apparatus for localizing a sound source using an eigenvector, includes, a sound signal input unit inputting a sound signal, a correlation matrix calculation unit calculating a correlation matrix of the input sound signal, and an eigenvector calculation unit calculating an eigenvalue of the correlation matrix using the calculated correlation matrix, wherein the eigenvector calculation unit calculates the eigenvector using the correlation matrix of the input sound signal and one or more predetermined correlation matrices. | 12-30-2010 |
20120045066 | SOUND SOURCE SEPARATION APPARATUS AND SOUND SOURCE SEPARATION METHOD - A sound source separation apparatus includes a transfer function storage unit that stores a transfer function from a sound source, a sound change detection unit that generates change state information indicating a change of the sound source on the basis of an input signal input from a sound input unit, a parameter selection unit that calculates an initial separation matrix on the basis of the change state information generated by the sound change detection unit, and a sound source separation unit that separates the sound source from the input signal input from the sound input unit using the initial separation matrix calculated by the parameter selection unit. | 02-23-2012 |
Patent application number | Description | Published |
20090258920 | INJECTABLE FORMULATION OF ANTIBIOTIC AND SOLUTION FOR INTRAVENOUS ADMINISTRATION THEREOF - A pharmaceutical composition for injection comprising a depsipeptide antibiotic, WAP-8294A | 10-15-2009 |
20100090388 | POST-PROCESSING APPARATUS AND IMAGE FORMING SYSTEM - A post-processing apparatus including: a first conveyance section which superposes a plurality of paper sheets conveyed from an image forming apparatus, and conveys with superposed state; a second conveyance section which conveys the paper sheets, sheet by sheet; a switching section which switches to convey the paper sheets either to the first or to the second conveyance section; a punch processing section which temporally stops the paper sheets from the first or the second conveyance section, and forms punch holes on the paper sheets; and a control section, wherein if determined, based on the basis weight or thickness information of the paper sheet, that the punch processing is not executable on the paper sheets with the superposed state, the control section controls to convey the paper sheets into the second conveyance section, and to execute the punch processing sheet by sheet. | 04-15-2010 |
20100270725 | POST-PROCESSING APPARATUS, SHEET EJECTION METHOD THEREOF AND IMAGE FORMING SYSTEM - Provided is a sheet ejection tray to which sheets are ejected; a stacker in which, after a plurality of sheets have been stacked, these sheets are ejected to the sheet ejection tray; a sheet ejection control section capable of controlling in such a way that it is selectable whether the sheets are ejected to the sheet ejection tray after having been stacked in the stack section, or the sheets are ejected to the sheet ejection tray without using the stack section; and an input button employed by an user to perform input operations. The sheet ejection control section provides control in such a way that, when the input button has been operated to perform an input operation while the sheets are ejected to the sheet ejection tray without using the stacker, the sheets will be ejected to the sheet ejection tray after having been stacked temporarily in the stacker. | 10-28-2010 |
20120095753 | NOISE POWER ESTIMATION SYSTEM, NOISE POWER ESTIMATING METHOD, SPEECH RECOGNITION SYSTEM AND SPEECH RECOGNIZING METHOD - A noise power estimation system for estimating noise power of each frequency spectral component includes a cumulative histogram generating section for generating a cumulative histogram for each frequency spectral component of a time series signal, in which the horizontal axis indicates index of power level and the vertical axis indicates cumulative frequency and which is weighted by exponential moving average; and a noise power estimation section for determining an estimated value of noise power for each frequency spectral component of the time series signal based on the cumulative histogram. | 04-19-2012 |
20140308096 | POST-PROCEESING APPARATUS AND IMAGE FORMING SYSTEM - The image forming system contains an image forming apparatus and a post-processing apparatus. The post-processing apparatus includes a flattening unit that flattens a back portion of a booklet, an elevating mechanism that moves the flattening unit operating together with a conveyance of the booklet and a post-processing control portion that controls the flattening unit to perform flattening processing which flattens the back portion of the booklet during the conveyance of the booklet by the elevating mechanism. The elevating mechanism elevates a booklet-holding mechanism including the flattening unit operating together with a conveyance of the booklet. The booklet-holding mechanism and the flattening unit moves up and down between cut-off processing portion and discharging portion operating together with the conveyance of the booklet. A square back roller reciprocatively moves along the back portion of the booklet together with the movement of roller moving mechanism. | 10-16-2014 |
Patent application number | Description | Published |
20110292250 | IMAGE PROCESSING APPARATUS - An image processing apparatus controls such that a plurality of additional information of image data are classified into a plurality of objects in accordance with update periods thereof and data of the additional ingenerateation corresponding to each of the classified objects is generated and output in accordance with the corresponding update period of each object, thereby multiplexing the data of the additional information corresponding to each object which is generated and output in accordance with update period thereof, to the input image data. The image processing apparatus demultiplexes the multiplexed data into the image data and the additional information, generates updated image data of the object to be updated from the demultiplexed additional information, and superimposes it to the video image corresponding to the image data. | 12-01-2011 |
20130216199 | IMAGE PROCESSING APPARATUS, IMAGE CAPTURING APPARATUS, CONTROL METHOD, AND RECORDING MEDIUM - An image processing apparatus obtains an image signal, which is captured by an image capturing apparatus, and in which respective pixels correspond to light fluxes of different combinations of pupil regions, where the light fluxes have passed through in an imaging optical system of the image capturing apparatus, and incident directions. The image processing apparatus sets a focal length corresponding to an object to be focused, and generates a reconstructed image focused on the object of the set focal length from the image signal. The image processing apparatus generates a moving image by concatenating a plurality of reconstructed images generated in association with a plurality of different focal lengths, and outputs the moving image in association with the image signals. | 08-22-2013 |
20150070463 | IMAGE RECORDING APPARATUS AND IMAGING APPARATUS - There are provided an image recording apparatus and an imaging apparatus. In the image recording apparatus and the imaging apparatus, a control unit identifies whether an input image input by an image input unit is an omnidirectional image or an ordinary image. An image editing unit, based on an omnidirectional image, converts the omnidirectional image into a panoramic image by developing the omnidirectional image in a circumferential direction. Then, the image editing unit records the converted panoramic image on a recording medium. As for an ordinary image, the image editing unit records the input image input by the image input unit on the recording medium. | 03-12-2015 |