Abstract: A power source device includes an assembled battery having a plurality of secondary battery cells connected in series, and a plurality of discharge circuits connected in parallel with the secondary battery cells, respectively. A charge control circuit performs constant current charging to the assembled battery, and when voltages of one or a plurality of the secondary battery cells out of the plurality of secondary battery cells have reached a prescribed first voltage, drives the discharge circuits connected to the secondary battery cells whose voltage have reached the first voltage to discharge, and performs constant voltage charging to the relevant assemble battery.

Abstract: According to one embodiment, information terminal includes: first audio input module; first audio output module; second audio input module; audio processor; and second audio output module. The first audio input module receives an external sound from an external information terminal connected to the information terminal via an external network. The first audio output module outputs the external sound. The second audio input module receives sounds transmitted from a sound input device of each information terminal within a group connected to the information terminal via the internal network. The audio processor synthesizes the in-group sounds to generate a single input sound, and removes an echo component from the input sound. Here, the echo component is caused due to the external sounds output from the sound output device. The second audio output module outputs the input sound from which the echo component is removed to the external information terminal.

Abstract: One embodiment provides a signal processing apparatus, including: a speaker; a vibration sensor; and a controller. The speaker is configured to output a sound. The vibration sensor is configured to detect a vibration that is caused by a solid propagation of the sound from the speaker, and to output a reference signal based on the detected variation. The controller is configured to perform a noise suppress control which suppresses a noise due to the vibration using the reference signal.

Abstract: One embodiment provides an electronic apparatus, including: a first detector configured to attempt to detect a telop and a warning sound from a received video content at a first image reading interval and a first sound reading interval, respectively; and a second detector configured to attempt, upon a detection of at least one of a telop and a warning sound by the first detector, to detect a telop and a warning sound from the video content at a second image reading interval and a second sound reading interval which are shorter than the first image reading interval and the first sound reading interval, respectively.

Abstract: According to one embodiment, the electronic device displays on the screen the locus of each of a plurality of strokes which are handwritten by a handwriting input operation which is executed on the touch-screen display. The electronic device stores, in the storage medium, first time-series information including a plurality of stroke data corresponding to the plurality of strokes and indicating an order in which the plurality of strokes were handwritten. The electronic device selects the process-target time-series information part from the first time-series information in accordance with the range designation operation which is executed on the touch-screen display.

Abstract: According to one embodiment, a data processing system includes a touchscreen display, a recorder, and a processor. The recorder is configured to record a plurality of stroke data indicating loci handwritten on the touchscreen display and times respectively. The processor is configured to execute data processing using a first time indicated by first stroke data associated with first data and a second time indicated by second stroke data associated with second data.

Abstract: According to one embodiment, a system includes a receiver, a storage, a retrieval module and a transmitter. The receiver receives handwritten document data, which includes stroke data corresponding to strokes, from a first electronic device. The storage stores a handwritten document data in addition to a plurality of document data. The retrieval module retrieves, in response to a request by a second electronic device, first handwritten document data corresponding to the request from the plurality of document data in the storage. The transmitter transmit the first handwritten document data to the second electronic device.

Abstract: A display control apparatus and display control method are provided. The display control apparatus includes an acquisition unit which is configured to acquire content data, a registration unit which is configured to register at least a part of the content data, a comparison unit which is configured to compare the content data acquired by the acquisition unit and the content data registered by the registration unit and to detect an updated portion of the content data, and a display unit which is configured to display the updated portion of the content data detected by the comparison unit on a display screen.

Abstract: In a rotor blade cylindrical portion or a stator portion in which thread grooves are formed, convex surfaces (thread groove peak surfaces) configuring the peak sections of the thread grooves are cut by a desired amount over the entire circumference (a circumferential direction of the thread grooves) of a certain range in an axial direction. As a result, the gap on the lower side of the thread groove portion can partially be expanded by cutting the thread groove peak surfaces by a desired amount.

Abstract: According to one embodiment, a signal correction apparatus includes a sound quality estimation module, a sound quality enhancement processing controller, and a sound quality enhancement processor. The sound quality estimation module is configured to generate channel importance information based on correlations of channels for signals input from one or more channels, and to generate frequency importance information based on noise levels. The sound quality enhancement processing controller is configured to decide valid channels and valid frequency components which are to undergo sound quality enhancement processing of the signals based on the channel importance information and the frequency importance information, and to generate valid channel information and valid processing frequency information.

Abstract: A correction spectrum calculation unit 6 obtains a correction spectrum by smoothing an estimated noise spectrum in accordance with the degree of its variations, and a suppression quantity limiting coefficient calculation unit 7 decides a suppression quantity limiting coefficient from the correction spectrum. A suppression quantity calculation unit 9 obtains a suppression coefficient based on the suppression quantity limiting coefficient, and the spectrum suppression unit 10 carries out amplitude suppression of spectral components of an input signal.

Abstract: A signal processing apparatus is configured to change volume level or frequency characteristics of an input signal with a limited bandwidth in a first frequency range. The apparatus includes: an information extracting unit configured to extract second frequency characteristic information from a collection signal with a limited bandwidth in a second frequency range different from the first frequency range; a frequency characteristic information extending unit configured to estimate first frequency characteristic information from the second frequency characteristic information extracted by the information extracting unit, the first frequency characteristic information including the first frequency range; and a signal correcting unit configured to change volume level or frequency characteristics of the input signal according to the first frequency characteristic information obtained by the frequency characteristic information extending unit.

Abstract: An illumination optical system includes first and second lamp units, a light combining portion that combines a light beam from the first lamp unit and a light beam from the second lamp unit, at least one light returning portion disposed between the first lamp unit and the light combining portion, or between the second lamp unit and the light combining portion, or both, the or each of the at least one light returning portion dividing a part of light emitted from the corresponding lamp unit into a light beam to be returned to the lamp and a light beam to be led to the light combining portion, and a condenser lens that condenses light from the light combining portion.

Abstract: According to at least one embodiment, a volume controller includes an audio processor configured to generate an output signal by variably controlling an amplitude of an input signal; and a volume controller configured to set a sound volume for the variable control based on the input signal.

Abstract: An illumination optical system and a projection display apparatus include a beam combining portion and a condensing lens condensing a beam from the beam combining portion. The beam combining portion combines beams from first and second lamp units each including a lamp and a concave mirror, the lamp having a cathode and an anode arranged along an optical axis of the concave mirror. The beam combining portion includes a first reflective section disposed on an optical axis of the first lamp unit and off the optical axis of the second lamp unit and a second reflective section disposed off the optical axis of the first lamp unit. The first and second reflective sections reflect a beam that is emitted from the second lamp unit and that is off an optical axis thereof to combine the beams from the first and second lamp units.

Abstract: A signal processing apparatus is configured to change volume level or frequency characteristics of an input signal with a limited bandwidth in a first frequency range. The apparatus includes: an information extracting unit configured to extract second frequency characteristic information from a collection signal with a limited bandwidth in a second frequency range different from the first frequency range; a frequency characteristic information extending unit configured to estimate first frequency characteristic information from the second frequency characteristic information extracted by the information extracting unit, the first frequency characteristic information including the first frequency range; and a signal correcting unit configured to change volume level or frequency characteristics of the input signal according to the first frequency characteristic information obtained by the frequency characteristic information extending unit.

Abstract: A signal processing apparatus is configured to change volume level or frequency characteristics of an input signal with a limited bandwidth in a first frequency range. The apparatus includes: an information extracting unit configured to extract second frequency characteristic information from a collection signal with a limited bandwidth in a second frequency range different from the first frequency range; a frequency characteristic information extending unit configured to estimate first frequency characteristic information from the second frequency characteristic information extracted by the information extracting unit, the first frequency characteristic information including the first frequency range; and a signal correcting unit configured to change volume level or frequency characteristics of the input signal according to the first frequency characteristic information obtained by the frequency characteristic information extending unit.

Abstract: According to one embodiment, An information processing apparatus includes a first signal input unit configure to receive a first signal, a second signal input unit configure to receive a signal, a first control unit configure to acquire system resources, a second control unit configure to select, in accordance with information of the system resources acquired by the first control unit, a processing method for suppressing at least one of echo and noise of the second signal input from the second signal input unit containing the echo due to the first signal input from the first signal input unit, a third control unit configure to generate an output signal by suppressing at least one of the echo and the noise from the second signal by the processing method selected by the second control unit, and a signal output unit configure to output the output signal generated by the third control unit.

Abstract: A communication apparatus capable of echo cancellation is provided. The apparatus is configured to be provided with an input signal receiving interference. The input signal has a frequency range. The interference includes an echo component and a noise component. The apparatus has a first interference eliminator configured to reduce an echo component included in the input signal so as to produce an intermediate signal. The apparatus has a selector configured to select one of the input signal and the intermediate signal. The apparatus has a second interference eliminator configured to reduce at least one of a noise component and an echo component included in one of the input signal and the intermediate signal selected by the selector.

Abstract: A color separation optical system is disclosed which is effective in improving black color and black unevenness. Linearly polarized light impinging on a dichroic surface at an incident angle smaller than 45 degrees and then impinging on a polarization beam splitting surface at an incident angle larger than 45 degrees is referred to as first incident-angle light. A wavelength which is longer than a wavelength at the maximum transmittance of the dichroic surface for the first incident-angle light and at which the transmittance of the dichroic surface for the first incident-angle light is 10% is referred to as Wa, and a wavelength range shorter than Wa is referred to as W. The polarization beam splitting surface has a characteristic in which its transmittance for the first incident-angle light in the wavelength range W is 5% or lower.