Patent application number | Description | Published |
20110282666 | Utterance state detection device and utterance state detection method - An utterance state detection device includes an user voice stream data input unit that gets user voice stream data of an user, a frequency element extraction unit that extracts high frequency elements by frequency-analyzing the user voice stream data, a fluctuation degree calculation unit that calculates a fluctuation degree of the high frequency elements thus extracted every unit time, a statistic calculation unit that calculates a statistic every certain interval based on a plurality of the fluctuation degrees in a certain period of time, and an utterance state detection unit that detects an utterance state of a specified user based on the statistic obtained from user voice stream data of the specified user. | 11-17-2011 |
20120253807 | SPEAKER STATE DETECTING APPARATUS AND SPEAKER STATE DETECTING METHOD - A speaker state detecting apparatus comprises: an audio input unit for acquiring, at least, a first voice emanated by a first speaker and a second voice emanated by a second speaker; a speech interval detecting unit for detecting an overlap period between a first speech period of the first speaker included in the first voice and a second speech period of the second speaker included in the second voice, which starts before the first speech period, or an interval between the first speech period and the second speech period; a state information extracting unit for extracting state information representing a state of the first speaker from the first speech period; and a state detecting unit for detecting the state of the first speaker in the first speech period based on the overlap period or the interval and the first state information. | 10-04-2012 |
20140029752 | AUDIO DECODING DEVICE AND AUDIO DECODING METHOD - An audio decoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, decoding, using a first channel signal and a second channel signal included in a plurality of channels of an audio signal having a first frequency range and a second frequency range, a first prediction coefficient of the first frequency range and a second prediction coefficient of the second frequency range, both selected from a code book when prediction-encoding a third channel signal that is not subjected to prediction encoding and that is included in the plurality of channels; decoding a residual signal included in the first frequency range, the residual signal representing an error occurring in prediction encoding; and prediction-decoding the third channel signal subjected to prediction-encoding in the second frequency range from the first channel signal, the second channel signal. | 01-30-2014 |
20140050324 | DATA EMBEDDING DEVICE, DATA EMBEDDING METHOD, DATA EXTRACTOR DEVICE, AND DATA EXTRACTION METHOD - A data embedding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, extracting, from a code book storing a plurality of prediction coefficients, a plurality of candidates of prediction coefficients of a channel signal out of a plurality of channel signals, each candidate having a predictive error falling within a specific range of predictive error of predictive encoding of two other channel signals; and selecting from the extracted candidates a prediction coefficient as a result of the predictive encoding in accordance with a specific data embedding rule and embedding embed target data into the selected prediction coefficient. | 02-20-2014 |
20140114652 | AUDIO CODING DEVICE, AUDIO CODING METHOD, AND AUDIO CODING AND DECODING SYSTEM - An audio coding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, calculating a frequency spectrum characteristic of an input signal; defining a scale factor that is used to quantize a frequency spectrum converted from the input signal, based on the frequency spectrum characteristic, for each of a plurality of bands; and quantizing the frequency spectrum based on the scale factor. | 04-24-2014 |
20140236603 | AUDIO CODING DEVICE AND METHOD - An audio coding device that performs predictive coding on a third-channel signal included in a plurality of channels in an audio signal according to a first-channel signal and a second-channel signal, which are included in the plurality of channels, and to a plurality of channel prediction coefficients included in a coding book, the device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, selecting channel prediction coefficients corresponding to the first-channel signal and the second-channel signal so that an error, which is determined by a difference between the third-channel signal before predictive coding and the third-channel signal after predictive coding, is minimized; and controlling the first-channel signal or the second-channel signal so that the error is further reduced. | 08-21-2014 |
20140278446 | DEVICE AND METHOD FOR DATA EMBEDDING AND DEVICE AND METHOD FOR DATA EXTRACTION - A data embedding device includes a storage unit configured to store a code book that includes a plurality of prediction parameters; a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute, extracting a plurality of candidates, of which a prediction error in prediction coding, the prediction coding being based on signals of other two channels, of a signal of one channel among signals of a plurality of channels is within a predetermined range, of a prediction parameter from the code book and extracting the number of candidates of the prediction parameter, the candidates being extracted; converting at least part of data that is an embedding object into a number base based on the number of candidates; and selecting a prediction parameter, the prediction parameter being a result of the prediction coding, from the candidates. | 09-18-2014 |
20140294181 | ORTHOGONAL TRANSFORM APPARATUS, ORTHOGONAL TRANSFORM METHOD, ORTHOGONAL TRANSFORM COMPUTER PROGRAM, AND AUDIO DECODING APPARATUS - An orthogonal transform apparatus computes either one of the real and imaginary components of the quadrature mirror filter coefficient contained in a first subinterval of a plurality of subintervals among which a coefficient sequence containing a plurality of quadrature mirror filter coefficients is divided so that the values of basis functions are symmetrically placed, by computing a sum of products of the plurality of modified discrete cosine transform coefficients and the basis functions corresponding to the subinterval, computes the other one of the real and imaginary components of the quadrature mirror filter coefficient contained in the first subinterval and the real and imaginary components of the quadrature mirror filter coefficient contained in another subintervals by performing a butterfly operation using a computed value produced as a result of the sum of products and computes each quadrature mirror filter coefficient by combining the real component and imaginary component thereof. | 10-02-2014 |
20140297706 | ORTHOGONAL TRANSFORM APPARATUS, ORTHOGONAL TRANSFORM METHOD, ORTHOGONAL TRANSFORM COMPUTER PROGRAM, AND AUDIO DECODING APPARATUS - An orthogonal transform apparatus includes: an interchanging unit which interchanges MDCT coefficients contained in a first half of a prescribed interval with MDCT coefficients contained in a second half thereof; an inverting unit which inverts the sign of the MDCT coefficients contained in the second half of the prescribed interval after the interchange; an inverse cosine transform unit which computes the real components of QMF coefficients by applying an IMDCT using FFT to the MDCT coefficients contained in the first half and the sign-inverted MDCT coefficients contained in the second half; an inverse sine transform unit which computes the imaginary components of the QMF coefficients by applying an IMDST using FFT to the MDCT coefficients contained in the first half and the sign-inverted MDCT coefficients contained in the second half; and a coefficient adjusting unit which computes the QMF coefficients by combining the real components with the imaginary components. | 10-02-2014 |
20150149185 | AUDIO ENCODING DEVICE AND AUDIO CODING METHOD - An audio encoding device includes a processor; and a memory which stores a plurality of instructions, which when executed by the processor, cause the processor to execute: calculating a similarity in phase of a first channel signal and a second channel signal contained in a plurality of channels of an audio signal; and selecting, based on the similarity, a first output that outputs one of the first channel signal and the second channel signal, or a second output that outputs both of the first channel signal and the second channel signal. | 05-28-2015 |
20150371640 | AUDIO CODING DEVICE, AUDIO CODING METHOD, AND AUDIO CODEC DEVICE - An audio coding device includes a memory; and a processor configured to execute a plurality of instructions stored in the memory, the instructions comprising: selecting a main lobe among a plurality of lobes detected from a frequency signal configuring an audio signal on a basis of bandwidth and power of the lobes; and coding the audio signal in such a manner that a first amount of bits per a unit frequency domain allocated to coding of the frequency signal of the main lobe is larger than a second amount of bits per the unit frequency domain allocated to the coding of the frequency signal of a side lobe as a lobe other than the main lobe. | 12-24-2015 |
Patent application number | Description | Published |
20090203561 | LUBRICANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE - A lubricating oil composition for internal combustion engines, containing a base oil, (A) at least one compound selected from disulfide compounds represented by the following general formula (I): | 08-13-2009 |
20100009876 | LUBRICATING OIL COMPOSITION - Provided is a lubricating oil composition comprising a base oil for a lubricating oil, (A) a fatty acid partial ester compound, 0.5 to 1.5% by mass of (B) (b1) an aliphatic amine compound and/or (b2) an acid amide compound, 0.01 to 0.1% by mass of (C) a specific benzotriazole derivative and a specific amount of (D) a specific succinimide compound. It is a lubricating oil composition of an environmental regulation compliant type which is used for internal combustion engines such as gasoline engines, diesel engines, engines using dimethyl ether for fuel, gas engines and the like, which does not contain Mo base friction reducing agents and is reduced in ash, phosphorus and sulfur and in which a friction reducing effect, an oxidation stability and a corrosion inhibiting effect are enhanced. | 01-14-2010 |
20100029520 | LUBRICATING OIL COMPOSITION - Provided is a lubricating oil composition of an environmental regulation compliant type, comprising (A) a base oil for a lubricating oil, (B) sulfated oxymolybdenum dithiocarbamate, (C) an acid amide compound, (D) (d1) a fatty acid partial ester compound and/or (d2) an aliphatic amine compound and (E) a specific benzotriazole derivative, wherein a content of the component (B) is 0.02 to 0.1% by mass in terms of molybdenum; a content of the component (C) is 0.2 to 1.0 % by mass; a content of the component (D) is 0.2 to 1.0% by mass; and a content of the component (E) is 0.02 to 0.1% by mass each based on the whole amount of the composition, and it has an excellent friction reducing effect in combination with a high corrosion preventing effect to copper and lead. | 02-04-2010 |
20100113313 | LUBRICANT COMPOSITION - A lubricating oil composition used in an internal combustion engine is provided. The internal combusting engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat, and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition includes: base oil of lubricating oil; a component (A) containing a boron derivative of an alkyl or alkenyl-substituted succinimide compound having a number average molecular weight of 200 to 5000; and a component (B) containing an alkaline earth metal-based detergent. The component (A) is contained by 0.01 to 0.2 mass % in terms of boron of a total amount of the composition while the component (B) is contained by 0.35 mass % or less in terms of the alkaline earth metal of the total amount of the composition. | 05-06-2010 |
20100137172 | LUBRICANT COMPOSITION - A lubricating oil composition according to the present invention is used in an internal combustion engine. The internal combustion engine uses a fuel that contains at least one fat and oil selected from a group consisting of natural fat and oil, hydrotreated natural fat and oil, transesterified natural fat and oil and hydrotreated transesterified natural fat and oil. The lubricating oil composition contains a component (A) that is an alkaline earth metal-based detergent. The component (A) is contained by a content of more than 0.35 mass % and 2 mass % or less of the total amount of the composition in terms of alkaline earth metal. | 06-03-2010 |
20100234254 | LUBRICATING OIL ADDITIVE, LUBRICATING OIL COMPOSITION CONTAINING THE SAME, VARIOUS LOW-FRICTION SLIDING MEMBERS, ROLLING BEARING, AND SLIDING BEARING - Provided is an additive for lubricating oils which enhances frictional characteristics of slide parts in internal combustion engines and driving system transmission engines and which exhibit an excellent fuel consumption reducing effect. The above additive for lubricating oils comprises a heterocyclic compound having a heterocyclic skeleton originating in a compound selected from pyridines, pyrroles, pyrimidines, pyrazoles, pyridazines, indazoles, pyrazines, triazines, triazoles, tetrazoles, oxazoles, oxadiazoles, thiazoles, thiadiazoles, furans, dioxanes, pyrans and thiophenes. A lubricating oil composition containing the above additive for lubricating oils is effectively used for various low friction slide members, antifriction bearings and slide bearings. | 09-16-2010 |
20100249000 | LUBRICANT OIL COMPOSITION - Provided is a lubricating oil composition, which is used in an internal combustion engine employing a fuel containing at least one kind selected from a hydrogenated product of natural fats and oils, a transesterification product of natural fats and oils, and a hydrogenated product of a transesterification product of natural fats and oils, which includes an alkali metal borate or a hydrate thereof in an alkali metal-corresponding amount of 10 to 1,000 ppm by mass in terms of total amount of the lubricating oil composition, and which can satisfactorily exhibit cleanness even in the case where the above-mentioned fuel is mixed therein or the case where ash content thereof is low. | 09-30-2010 |
20110152145 | ANTI-WEAR AGENT, ADDITIVE COMPOSITION FOR LUBRICANT, AND LUBRICANT COMPOSITION - Provided are an anti-wear agent comprising a heterocylclic compound having a heterocyclic skeleton derived from a compound selected from pyridines, pyrroles, pyrimidines, pyrazoles, pyridazines, imidazoles, pyrazines, triazines, triazoles, tetrazoles, oxazoles, oxadiazoles, thiazoles, thiadiazoles, furans, dioxanes, pyrans, and thiophenes and/or comprising a reaction product of the heterocyclic compound and a compound selected from a boron compound, a molybdenum compound, and a silicon compound, which is an anti-wear agent for a lubricating oil excellent in wear resistance, friction-reducing property, and base number-retaining property, and a lubricating oil composition comprising the anti-wear agent. | 06-23-2011 |
20110239972 | LUBRICATING OIL COMPOSITIONS - The present invention provides a lubricating oil composition capable of achieving a lubricating property, a thermal stability, an oxidation stability, an anti-discoloring property and an anti-varnishing performance with a higher level by compounding a phosphorus compound having a specific structure in a base oil, as well as a lubricating oil composition for internal combustion engines which is excellent in wear resistance, high-temperature detergency and base number retention property although it has a low phosphorus content, a low sulfur content and a low sulfated ash content. | 10-06-2011 |
20120135904 | LUBRICANT COMPOSITION - A lubricant oil composition which is excellent in wear resistance, high temperature detergency and base number retaining property, despite its low phosphorus content, low sulfur content and low sulfuric acid ash content, is provided at a low cost by compounding a sulfonamide compound having a specific structure in a base oil. | 05-31-2012 |
20130005624 | LUBRICANT COMPOSITION - A lubricant oil composition which is excellent in deposition resistance, corrosion resistance and wear resistance, despite its low phosphorus content and low sulfuric acid ash content, is provided by using a succinimide compound in combination with at least one selected from specific sulfur-containing compounds, specific heterocyclic compounds and reaction products thereof. | 01-03-2013 |
20130130954 | LUBRICANT OIL COMPOSITION - Provided is a lubricating oil composition, which is used in an internal combustion engine employing a fuel containing at least one kind selected from a hydrogenated product of natural fats and oils, a transesterification product of natural fats and oils, and a hydrogenated product of a transesterification product of natural fats and oils, which includes an alkali metal borate or a hydrate thereof in an alkali metal-corresponding amount of 10 to 1,000 ppm by mass in terms of total amount of the lubricating oil composition, and which can satisfactorily exhibit cleanness even in the case where the above-mentioned fuel is mixed therein or the case where ash content thereof is low. | 05-23-2013 |