Patent application number | Description | Published |
20090249942 | MUSIC PIECE REPRODUCING APPARATUS AND MUSIC PIECE REPRODUCING METHOD - A music piece reproducing apparatus has: a sound collecting unit collecting noise data of an ambient environment; an analyzing unit performing a frequency analysis to the noise data collected by the sound collecting unit and extracting a feature amount showing a feature of the noise data; a noise parameter database classifying the noise data every environment; and a reproducing unit reproducing music piece data which has been recorded in a recording medium and classified every category, wherein the analyzing unit classifies the noise data with reference to the noise parameter database on the basis of the extracted feature amount of the noise data, selects the previously-corresponded category of music pieces in accordance with a classification result of the noise data, and selects predetermined music piece data from music piece data classified into the selected category. | 10-08-2009 |
20090310793 | AUDIO SIGNAL PROCESSING DEVICE AND AUDIO SIGNAL PROCESSING METHOD - An audio signal processing device includes: a microphone configured to collect noise; an analyzing unit configured to analyze an audio signal collected by the microphone to detect the level and frequency property of the collected audio signal; and a signal processing unit configured to subject an audio signal to be reproduced to signal processing based on the analysis results of the analyzing unit. | 12-17-2009 |
20090310799 | INFORMATION PROCESSING APPARATUS AND METHOD, AND PROGRAM - An information processing apparatus includes a band spreading unit configured to perform a band spreading process for generating components in a specific frequency band and adding the components to audio data, and a control unit configured to control the band spreading unit to execute the band spreading process using a band spreading method determined among a plurality of different band spreading methods, the band spreading method being defined in advance for a musical class determined using a feature of the audio data. | 12-17-2009 |
20090323976 | NOISE REDUCTION AUDIO REPRODUCING DEVICE AND NOISE REDUCTION AUDIO REPRODUCING METHOD - A noise reduction audio reproducing method includes the steps of: generating, from an audio signal of collected and obtained noise, an audio signal for noise cancellation to cancel the noise by synthesizing the audio signal for noise cancellation and the noise in an acoustic manner, reproducing the audio signal for noise cancellation acoustically to synthesize this with the noise in an acoustic manner; emphasizing an audio component to be listened to, of collected audio; synthesizing an audio signal with the audio component to be listened to being emphasized, and the audio signal for noise cancellation to supply the synthesized signal thereof to an electro-acoustic converting unit; and controlling so as to supply an audio signal, with the audio component to be listened to having been emphasized, to a synthesizing unit, regarding only a section based on a control signal. | 12-31-2009 |
20100005953 | VOLUME ADJUSTING APPARATUS AND VOLUME ADJUSTING METHOD - A volume adjusting apparatus includes a sound collecting unit configured to collect noise data of a surrounding environment, an analyzing unit configured to extract a feature value indicating a feature of the noise data collected by the sound collecting unit and a feature value indicating a feature of supplied musical tune data, and a control unit configured to generate volume adjustment information for adjusting playback volume of the musical tune data based on the feature value of the noise data and the feature value of the musical tune data and adjusts the playback volume of the musical tune data based on the volume adjustment information. | 01-14-2010 |
20100011024 | PLAYBACK APPARATUS AND DISPLAY METHOD - A playback apparatus is able to present song categories to the user that are suited to the current environmental noise. An audio pickup picks up noise data of the surrounding environment. A noise analyzer analyzes the noise data, and then extracts characteristic quantities expressing the characteristics of the noise data. A noise categorizer categorizes the noise data on the basis of the extracted noise data characteristic quantities. A content category database stores content data recorded onto a recording medium in association with categories based on characteristic quantities of the content data. A content category selector cross-references the noise data categorization result with the content category database, and on the basis thereof, selects a plurality of content data categories from among the categorized content data recorded onto the recording medium. A display unit then displays the selected plurality of content data categories. | 01-14-2010 |
20100026539 | Signal Processing Device, Signal Processing Method, and Signal level Display Device - A signal processing device includes a bit-pattern output unit and a look-up table storage unit which are configured as follows: The bit-pattern output unit is provided for receiving input 1-bit digital signals generated by ΔΣ modification and aligning bits of the input 1-bit digital signals in a chronological order to output parallel bit pattern. The look-up table storage unit is provided for storing a look-up table that represents a relationship between the bit patterns output from the bit pattern output unit and resulting values of a filtering arithmetic operation on the basis of the bit patterns. In the signal processing device, the bit patterns output from the bit-pattern output unit are provided as indexes. The indexes are referenced to output the resulting values of the filtering arithmetic operation corresponding to the bit patterns listed in the look-up table stored in the look-up table storage unit. | 02-04-2010 |
20100246807 | Headphone Device - A headphone device includes: two output units for outputting playback audio which has been played back; a contact determination unit determining the occurrence of contact with respect to a telephone device; a first audio-collecting unit for collecting call voice generated from the telephone device; a second audio-collecting unit for collecting ambient external sound; and an output audio control unit performing control so that the call voice is outputted from one output unit of the two output units and the external sound is outputted from the other output unit when it is determined that contact has occurred by the contact determination unit. | 09-30-2010 |
20100295678 | MOBILE APPARATUS, METHOD OF CONTROLLING THE SAME, AND PROGRAM - Provided is a notice apparatus including: a plurality of notice signal generation units which generate notice signals; a reference signal output unit which outputs a reference signal used to determine an environmental situation; a reference signal detection unit which detects the reference signal output from the reference signal output unit and generates the detected reference signal as a detection signal; and a notice controller which controls one of the notice signal generation units to generate the notice signal based on the detection signal generated by the reference signal detection unit. | 11-25-2010 |
20110008072 | ROTOR ROTATING APPARATUS, DEVELOPING APPARATUS, AND IMAGE FORMING APPARATUS - A rotor rotating apparatus includes: a first rotor that rotates; a second rotor supported rotatably at the first rotor and so as to revolve around an axis of the first rotor with rotation of the first rotor; a drive unit for rotating the second rotor; a transmission member configured to move along a direction of a rotation axis of the second rotor between a transmission position at which the transmission member transmits the drive force from the drive unit to the second rotor and a non-transmission position at which the transmission member idles: and a guide member that moves the transmission member to the transmission position when the first rotor is in a first rotation position, and moves the transmission member to the non-transmission position by rotation of the first rotor from the first rotation position. | 01-13-2011 |
20110015933 | SIGNAL ENCODING APPARATUS, SIGNAL DECODING APPARATUS, SIGNAL PROCESSING SYSTEM, SIGNAL ENCODING PROCESS METHOD, SIGNAL DECODING PROCESS METHOD, AND PROGRAM - Provided is a signal encoding apparatus including: an encoding unit which encodes a quantization value of a frequency spectrum in an input signal through a plurality of encoding algorithms; an amplitude change amount calculation unit which calculates an amplitude change amount with respect to the frequency spectrum based on a spectrum envelope of the frequency spectrum; and an encoding selection unit which selects the encoding algorithm according to a degree of deflection of an occurrence probability distribution of the quantization value in the amplitude change amount among the plurality of the encoding algorithms. | 01-20-2011 |
20110084858 | ENCODING APPARATUS, DECODING APPARATUS, INFORMATION PROCESSING SYSTEM, ENCODING METHOD, AND PROGRAM - An encoding apparatus includes a unit that calculates a plurality of normalized values by dividing input values in an input signal by either a normalization coefficient that is closest to a maximum value of absolute values of the input values or a normalization coefficient that is closest to the maximum value from among normalization coefficients that are larger than the maximum value; a unit that generates a plurality of quantized values by quantizing the plurality of normalized values; a unit that stores a code table in which the smaller the probability of occurrence of the plurality of quantized values, the longer the code length of a variable-length code allocated to the plurality of quantized values; and a unit that outputs, when the plurality of quantized values are all zero, a variable-length code allocated to a combination of a plurality of quantized values in accordance with the code table. | 04-14-2011 |
20110236077 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device include: a toner carrier that is arranged oppositely to an image carrier; a toner-flying electrode member spaced apart from the toner carrier; and an oscillating electric field generating power source that connects the toner-flying electrode member and the toner carrier, and generates an oscillating electric field which causes the toner to fly from the toner carrier. The toner-flying electrode member includes a conductive member that extends at least along a rotational axis direction of the toner carrier; an insulating coating layer that applies insulating coating continuously to a conductive member surface located on a toner carrier side; and an exposed portion where the conductive member surface adjacent to the insulating coating layer and located on an image carrier side is exposed. | 09-29-2011 |
20110301960 | CODING APPARATUS, CODING METHOD, DECODING APPARATUS, DECODING METHOD, AND PROGRAM - A coding apparatus includes a generation unit configured to generate first coding information used for first coding of a first audio signal and second coding information used for second coding of a second audio signal, and generate third coding information used for the first coding of the second audio signal and fourth coding information used for the second coding of a third audio signal; a first coding unit configured to generate first data and second data; a second coding unit configured to generate third data and fourth data by performing the second coding on the third audio signal; and a multiplexing unit configured to generate a stream of the first audio signal and a stream of the second audio signal. The third data is decoded in place of the second data in a case where a loss or an error has occurred in the stream of the second audio signal. | 12-08-2011 |
20120010737 | AUDIO ADJUSTING DEVICE - The audio adjusting device is preferable applied to an audio system, and includes an audio analyzing unit, a control unit and an adjusting unit. The audio analyzing unit analyzes audio based on the inputted audio signals on the real time basis. The control unit generates the control signal for adjusting the audio signals based on the analysis information of the audio analyzed by the analyzing unit and the volume level instructed by the user. The adjusting unit adjusts and outputs the audio signals based on the control signal in terms of at least one of spreading feeling, speech clearness and bass volume feeling. The control unit varies the adjusting amount by the adjusting unit based on the signal level of the audio signals and the volume level. | 01-12-2012 |
20120026861 | DECODING DEVICE, DECODING METHOD, AND PROGRAM - A decoding device includes an acquisition unit configured to acquire a first frequency signal including a narrowband signal and a wideband signal, a direct inverse orthogonal transform unit configured to perform a direct matrix operation with respect to the narrowband signal of the first frequency signal so as to perform inverse orthogonal transform, and a high-speed inverse orthogonal transform unit configured to perform inverse orthogonal transform employing a high-speed operation method with respect to the wideband signal of the first frequency signal. | 02-02-2012 |
20120057723 | Signal Processing Apparatus and Method - A signal processing apparatus includes a first audio output unit configured to output audio of a first audio signal input from a first signal input line, a first pickup unit connected to the first signal input line, a second audio output unit configured to output audio of a second audio signal input from a second signal input line, a second pickup unit connected to the second signal input line, a connecting line that connects the above units to ground, and a first reducing unit configured to at least reduce a first sound leakage signal, being the first audio signal leaking into the second signal input line from the first audio output unit, by using the first audio signal, or reducing a second sound leakage signal, being the second audio signal leaking into the second signal input line from the second audio output unit, by using the second audio signal. | 03-08-2012 |
20120076540 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS INCLUDING DEVELOPING DEVICE - A developing device includes: a developer holding body including: a hollow development rotary body which is opposed to an image holding body capable of holding a toner image and has a smooth surface whose surface roughness is lower than or equal to 5 μm in terms of maximum height; and a magnet member which is fixedly housed in the development rotary body and in which a plurality of magnetic poles are arranged alongside its periphery, the developer holding body operating in such a manner that developer containing toner and carrier is held on the development rotary body by magnetic force produced by the magnetic poles of the magnet member as the development rotary body is rotated; a layer regulating rotary body as defined herein; and a development driving device as defined herein. | 03-29-2012 |
20120114142 | ACOUSTIC SIGNAL PROCESSING APPARATUS, PROCESSING METHOD THEREFOR, AND PROGRAM - The present invention relates to an acoustic signal processing apparatus that suppresses auditory noise caused in a difference signal generated by acoustic signals of a plurality of channels, a processing method therefor, and a program. | 05-10-2012 |
20120116781 | ENCODING APPARATUS, ENCODING METHOD, AND PROGRAM - An encoding apparatus includes a noise detector configured to detect noise included in a certain band in accordance with an audio signal, a gain controller configured to perform gain control on the audio signal so that components in the certain band of the audio signal are attenuated when the noise is detected by the noise detector, a bit allocation calculation unit configured to calculate the numbers of bits to be allocated to frequency spectra of the audio signal which have been subjected to the gain control performed by the gain controller in accordance with the frequency spectra, and a quantization unit configured to quantize the frequency spectra of the audio signal which have been subjected to the gain control in accordance with the numbers of the bits. | 05-10-2012 |
20120137191 | DECODING DEVICE, DECODING METHOD, AND PROGRAM - A decoding device including a decoding unit which decodes encoded data, an inverse orthogonal transformation unit which performs inverse orthogonal transformation for the encoded data and obtains a time series waveform element in a unit of blocks, a correlation calculation unit which obtains a correlation between a time series waveform element of a block arranged immediately before an error block which is a block in which an error has occurred during decoding by the decoding unit and a time series waveform element of a block arranged a predetermined number of blocks before the block, a cycle calculation unit which obtains a basic cycle of a block unit of the error block based on the correlation obtained by the correlation calculation unit, and a generation unit which generates a substitute signal of the time series waveform element of the error block. | 05-31-2012 |
20120143614 | ENCODING APPARATUS, ENCODING METHOD, DECODING APPARATUS, DECODING METHOD, AND PROGRAM - An encoding apparatus includes a time-frequency transform unit that performs a time-frequency transform on an audio signal, a normalization unit that normalizes a frequency spectral coefficient obtained by the time-frequency transform in order to generate encoded data of the audio signal, a level calculation unit that calculates a level of the audio signal, a scale factor changing unit that changes a concealment scale factor included in encoded concealment data obtained by performing, on the basis of the level of the audio signal, a time-frequency transform and normalization on a minute noise signal, the concealment scale factor being a scale factor relating to a coefficient used for the normalization, and an output unit that outputs the encoded data of the audio signal generated by the normalization unit or outputs, as encoded data of the audio signal, the encoded concealment data whose concealment scale factor has been changed. | 06-07-2012 |
20120163613 | NOISE REDUCTION APPARATUS AND METHOD, AND PROGRAM - A noise reduction apparatus includes a microphone that picks up a noise from surroundings of a casing, a cancellation signal generating section that generates a cancellation signal for reducing the noise from surroundings, by applying filtering to a signal picked up by the microphone, a predicted signal computing section that computes a predicted signal by predicting a noise from surroundings leaking into the casing, on a basis of the signal picked up by the microphone, an additional-signal control section that generates an additional signal for improving a listening feel of an actual residual noise, on a basis of a predicted residual noise obtained by adding the cancellation signal and the predicted signal, and an addition/output section that adds and outputs the additional signal and the cancellation signal. | 06-28-2012 |
20130003980 | AUDIO ENCODER, AUDIO ENCODING METHOD AND PROGRAM - There is provided an audio encoder comprising a determination part determining, based on frequency spectra of audio signals of a plurality of channels, a mixing ratio as a ratio, relative to a frequency spectrum after mixing for each channel of the plurality of channels, of the frequency spectrum for another channel, a mixing part mixing the frequency spectra of the plurality of channels for each channel based on the mixing ratio determined by the determination part, and an encoding part encoding the frequency spectra of the plurality of channels after mixing by the mixing part. | 01-03-2013 |
20130006618 | SPEECH PROCESSING APPARATUS, SPEECH PROCESSING METHOD AND PROGRAM - The present invention relates to a speech processing apparatus, a speech processing method and a program which, when multichannel audio signals are downmixed and coded, prevent delay and an increase in the computation amount upon decoding of the audio signals. An inverse multiplexing unit ( | 01-03-2013 |
20130006647 | ENCODING DEVICE AND ENCODING METHOD, DECODING DEVICE AND DECODING METHOD, AND PROGRAM - The present invention relates to an encoding device and an encoding method, a decoding device and a decoding method, and a program that reduce deterioration of sound quality due to encoding of audio signals. | 01-03-2013 |
20130013325 | DECODING APPARATUS AND METHOD, ENCODING APPARATUS AND METHOD, AND PROGRAM - The present invention relates to a decoding apparatus, a decoding method, an encoding apparatus, an encoding method, and programs that can shorten the delay time caused by the band extension at the time of decoding, and restrain increases in resources on the decoding side. | 01-10-2013 |
20130084108 | DEVELOPMENT DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A development device includes a developer carrier; a layer-regulating rotating member that faces the developer carrier with a gap therebetween and rotates in a direction following the rotation of the developer carrier while regulating the thickness of a layer of developer on the developer carrier; a development controller that controls, during development, the developer carrier and the layer-regulating rotating member to rotate at respective predetermined speeds and develops an electrostatic latent image on an image carrier with the developer; and a discharge controller that controls, while development is stopped, the developer carrier to rotate at a predetermined speed while controlling the layer-regulating rotating member to rotate at a speed that changes intermittently such that the amount of developer passing the layer-regulating rotating member changes and any foreign matter and aggregates in the developer are discharged together with the layer of the developer whose thickness is changed on the developer carrier. | 04-04-2013 |
20130096927 | AUDIO CODING DEVICE AND AUDIO CODING METHOD, AUDIO DECODING DEVICE AND AUDIO DECODING METHOD, AND PROGRAM - There is provided an audio coding device including a first windowing part that multiplies an audio signal by a first window function, a second windowing part that multiplies the audio signal by a second window function having a characteristic different from a characteristic of the first window function, a window selecting part that selects the first window function or the second window function as an optimum window function based on the audio signal multiplied by the first windowing part and the audio signal multiplied by the second windowing part, a coding part that codes a frequency spectrum of the audio signal multiplied by the optimum window function, and a transmitting part that transmits the frequency spectrum coded by the coding part and window function information representing the optimum window function. | 04-18-2013 |
20130315611 | DEVELOPING DEVICE AND IMAGE FORMING APPARATUS - A developing device includes a developer holding member that holds a developer on a surface thereof to transport the developer to a developing region in which a latent image is developed as a visible image, an accommodating section that accommodates the developer supplied to the developer holding member, a supply section that is connected to the accommodating section and disposed above the developer holding member in the direction of gravity to supply the developer to the developer holding member from above, and a first transport member that is disposed in the supply section to transport the developer, and transports a predetermined or greater amount of a developer in the developer accommodated in the supply section to the outside of a region corresponding to the developer holding member. | 11-28-2013 |
20140095154 | VOICE TRANSMITTING DEVICE, VOICE TRANSMITTING METHOD, VOICE RECEIVING DEVICE, AND VOICE RECEIVING METHOD - There is provided a voice transmitting device, including a band limiting unit that performs band limitation on an input time-series signal, a coding unit that encodes a time-series signal output from the band limiting unit, a transmitting unit that transmits a code string output from the coding unit, and a control unit that controls a band limitation operation in the band limiting unit. | 04-03-2014 |
20140284866 | IMAGE FORMING SYSTEM AND RELAY APPARATUS - An image forming system includes a sheet feed apparatus that feeds a sheet; an image forming apparatus that is provided independently of the sheet feed apparatus and that includes an image-formation transport path used for transporting the sheet fed from the sheet feed apparatus and an image forming section that forms an image onto the sheet transported along the image-formation transport path; and a relay apparatus that is independently provided between the sheet feed apparatus and the image forming apparatus. The relay apparatus relays the sheet fed from the sheet feed apparatus toward the image forming apparatus and ensures a distance along which the sheet is transported from the sheet feed apparatus to the image forming apparatus. | 09-25-2014 |
20140334540 | ENCODER AND ENCODING METHOD, DECODER AND DECODING METHOD, AND PROGRAM - The present technology relates to an encoder and an encoding method, a decoder and a decoding method, and a program by which encoding efficiency is able to be improved by constraining an appearance probability of a predetermined quantization value of an encoding target to 0 when encoding with a combination of Huffman encoding and multidimensional encoding is performed. | 11-13-2014 |
20140369712 | IMAGE FORMING APPARATUS - An image forming apparatus includes a cooling device and a drawer. The cooling device includes two medium cooling members facing each other with a medium transport path therebetween, and a movable body moving the cooling members between a first position where they face each other and a second position where they are disposed away from each other. The drawer supports the transport path and the cooling device and is movable between a cooling-device accommodated position inside the apparatus and a cooling-device ejected position outside the apparatus. A transport-path length from an upstream end of the cooling device to a downstream end of the transport path in the movable body is longer than a length of a maximum-size medium. When the drawer and the movable body move to the accommodated position and the second position, respectively, the movable body is accommodated within a space within the apparatus. | 12-18-2014 |