Abstract: A sound collection device performs Fourier transform on a first sound reception signal outputted from a first microphone and outputs a first signal, performs Fourier transform on a second sound reception signal outputted from a second microphone and outputs a second signal, estimates an arrival direction of the voice, calculates a phase of a cross-spectrum of the first signal and the second signal, determines a mask coefficient based on an arrival direction phase table indicating a relationship between the phase and the arrival direction regarding each frequency band, the calculated phase, and the estimated arrival direction, separates a signal from the first signal or the second signal by using the mask coefficient, and performs inverse Fourier transform on the separated signal and outputs a signal of a target voice.

Abstract: A electrified vehicle comprising: a motor for traveling; a fuel cell or a power storage device that supplies electric power to the motor; an external power feed device that is connected to the power source via the power line and supplies electric power of the power line to the external load; a cooling device that cools the power source; and a control device that controls at least the cooling device, wherein the control device controls the cooling device such that the temperature of the power source is adjusted based on a first related amount that is a power feed time that is a time required for external power feed or a power feed amount that is a power amount required for external power feed, and a second related amount that is a distance to a destination or power consumption toward a destination after external power feed.

Abstract: Electrified vehicle includes an in-vehicle charger for performing external power feeding, an operation unit operated by the user at the time of power feeding, a switching unit that connects the in-vehicle charger and the in-vehicle battery by the operation unit being in contact, and a regulating unit that restricts contact between the operation unit and the switching unit when the first relay mechanism used for the operation of the high-voltage system of electrified vehicle is connected.

Abstract: The disclosed electrified vehicle includes at least one replaceable battery, an electric motor that exchanges electric power with the battery, a battery case, and a locking device, wherein the battery case includes a case body having an opening through which the battery is inserted and removed, and a lid that opens and closes the opening of the case body, and wherein the locking device locks the lid of the battery case in a non-openable manner when at least an electrified vehicle start-up switch is turned on.

Abstract: The disclosed electrified vehicle includes at least one replaceable battery, an electric motor that exchanges electric power with the battery, a battery case, a lock device, and a notification device, wherein the battery case includes a case body having an opening into which the battery is inserted and removed, and a lid that opens and closes the opening of the case body, and the lock device locks the lid of the battery case in such a manner that the lid is not openable, and the notification device notifies that the lid is locked when the lid is locked by the lock device so as not to be openable in response to a request from electrified vehicle.

Abstract: A battery unit includes: a connecting portion electrically connectable to an electrical apparatus in which the battery unit is mounted; a cell that allows supply of electric power to the electrical apparatus; a relay that switches between a conductive state in which a power supply line between the connecting portion and the cell is electrically connected and an interrupt state in which the power supply line is electrically interrupted; a first notification device that operates, when being supplied with electric power, to allow an operating state to be recognized from outside; and a first supply source that supplies electric power to the first notification device when the first supply source is connected to the first notification device and the relay is in the conductive state.

Abstract: An information processing device includes a sound signal acquisition unit that acquires sound signals outputted from a mic array, an analysis unit that analyzes frequencies of the sound signals, an information acquisition unit that acquires predetermined information indicating a steering vector in a first direction as a direction from the mic array to a target sound source, and a calculation unit that calculates a filter for formation in a second direction as a direction different from the first direction based on the frequencies and the information indicating the steering vector in the first direction and calculates a steering vector in the second direction by using an expression indicating a relationship between the calculated filter and the steering vector in the second direction.

Abstract: An information processing device includes a first acquisition unit that acquires a sound signal outputted from a mic, an acoustic feature detection unit that detects an acoustic feature based on the sound signal, an identification unit that identifies first discomfort condition information corresponding to a first work type of work performed by a user, among one or more pieces of discomfort condition information specifying discomfort conditions using the acoustic feature and corresponding to one or more work types, based on work type information indicating the first work type, and an output judgment unit that judges whether first masking sound should be outputted or not based on the acoustic feature detected by the acoustic feature detection unit and the first discomfort condition information.

Abstract: A sound collection device performs Fourier transform on a first sound reception signal outputted from a first microphone and outputs a first signal, performs Fourier transform on a second sound reception signal outputted from a second microphone and outputs a second signal, estimates an arrival direction of the voice, calculates a phase of a cross-spectrum of the first signal and the second signal, determines a mask coefficient based on an arrival direction phase table indicating a relationship between the phase and the arrival direction regarding each frequency band, the calculated phase, and the estimated arrival direction, separates a signal from the first signal or the second signal by using the mask coefficient, and performs inverse Fourier transform on the separated signal and outputs a signal of a target voice.

Abstract: A frequency band expansion device includes processing circuitry to calculate a weighting coefficient based on a frequency gradient of the input signal; to generate a white noise signal; to generate a first white noise signal by performing filtering on the white noise signal; to generate a second white noise signal by regulating a phase characteristic of the white noise signal; to generate a third white noise signal by performing weighted addition on the first white noise signal and the second white noise signal by using the weighting coefficient; and to generate the output signal by adding together the input signal and a signal corresponding to the third white noise signal, wherein the processing circuitry is configured so that the phase characteristic of the second white noise signal becomes the same as the phase characteristic of the first white noise signal.

Abstract: An information processing device includes a first acquisition unit that acquires biological information on a user, a first judgment execution unit that executes a first judgment on whether a first discomfort condition is satisfied or not based on first discomfort condition information specifying the first discomfort condition and the biological information, a second acquisition unit that acquires a sound signal, an acoustic feature detection unit that detects an acoustic feature based on the sound signal, a second judgment execution unit that executes a second judgment on whether a second discomfort condition is satisfied or not based on second discomfort condition information specifying the second discomfort condition and the acoustic feature, and an output judgment unit that judges whether first masking sound should be outputted or not based on a result of the first judgment and a result of the second judgment.

Abstract: A vehicle control device mounted on a vehicle includes a power storage device, a drive device configured to be driven by electric power from the power storage device, a system main relay attached to a power line between the power storage device and the drive device, and a charge circuit connected to a side of the drive device through the system main relay of the power line, in which the vehicle control device is configured to turn off the system main relay and prohibit reactivation of the system in a power shortage of the power storage device. The vehicle control device is configured to permit the system main relay to be turned on in a case where charging of the power storage device using the charge circuit is requested.

Abstract: An information presentation control device includes: an analyzer to calculate a degree of risk based on information regarding an object located around a vehicle; an occupant monitor to determine whether a driver is aware of approach of the object, based on information obtained by imaging the driver with a camera; an image processor to cause at least one of the displays to perform alerting display, based on the degree of risk; and a sound processor to cause the sound output device to generate, as an alerting sound, a sound whose sound image is controlled so that a virtual sound source is localized at a position of at least one of the at least one display, based on the degree of risk. When the driver is aware of the object, the sound processor stops generation of the alerting sound or decreases a sound volume of the alerting sound.

Abstract: A vehicle control device includes a power storage device, a drive device, a system main relay attached to a power line, and a charge circuit connected to the power line on a side of the drive device from the system main relay. The vehicle control device turns off the system main relay in a power shortage of the power storage device, and store a power shortage state of the power storage device to prohibit reactivation of the system. The vehicle control device, when charging of the power storage device using the charge circuit is requested, determines whether the power shortage state of the power storage device is stored, and when the power shortage state of the power storage device is stored, releases prohibition of system reactivation when an output limit of the power storage device reaches predetermined electric power or more due to charging.

Abstract: An information processing device includes a sound signal acquisition unit that acquires sound signals outputted from a mic array, an analysis unit that analyzes frequencies of the sound signals, an information acquisition unit that acquires predetermined information indicating a steering vector in a first direction as a direction from the mic array to a target sound source, and a calculation unit that calculates a filter for formation in a second direction as a direction different from the first direction based on the frequencies and the information indicating the steering vector in the first direction and calculates a steering vector in the second direction by using an expression indicating a relationship between the calculated filter and the steering vector in the second direction.

Abstract: An information processing device includes a first acquisition unit that acquires biological inform information on a user, a first judgment execution unit that executes a first judgment on whether a first discomfort condition is satisfied or not based on first discomfort condition information specifying the first discomfort condition and the biological information, a second acquisition unit that acquires a sound signal, an acoustic feature detection unit that detects an acoustic feature based on the sound signal, a second judgment execution unit that executes a second judgment on whether a second discomfort condition is satisfied or not based on second discomfort condition information specifying the second discomfort condition and the acoustic feature, and an output judgment unit that judges whether first masking sound should be outputted or not based on a result of the first judgment and a result of the second judgment.

Abstract: An information processing device includes a first acquisition unit that acquires a sound signal outputted from a mic, an acoustic feature detection unit that detects an acoustic feature based on the sound signal, an identification unit that identifies first discomfort condition information corresponding to a first work type of work performed by a user, among one or more pieces of discomfort condition information specifying discomfort conditions using the acoustic feature and corresponding to one or more work types, based on work type information indicating the first work type, and an output judgment unit that judges whether first masking sound should be outputted or not based on the acoustic feature detected by the acoustic feature detection unit and the first discomfort condition information.

Abstract: A microphone array includes first and second microphones (Ma, Mb) placed on a first axis (f), a third microphone (Mc) placed on a plane (fg) formed by the first axis and a second axis (g) and at a position other than on the first axis, and a fourth microphone (Md) placed on a third axis (h), and at a position other than on the plane formed by the first and the second axes, and a processing circuit generates signals (Cx, Cy, Cz) having bidirectionality in first, second and third mutually perpendicular directions (x, y, z), and an omnidirectional signal (Cw), based on signals (Ba to Bd) obtained by sound collection by means of the first to fourth microphones. It is possible to generate signals having bidirectionality in mutually perpendicular directions, and an omnidirectional signal, without using special microphones, and without excessive restrictions with regard to the placement of the microphones.

Abstract: A frequency band expansion device includes processing circuitry to calculate a weighting coefficient based on a frequency gradient of the input signal; to generate a white noise signal; to generate a first white noise signal by performing filtering on the white noise signal; to generate a second white noise signal by regulating a phase characteristic of the white noise signal; to generate a third white noise signal by performing weighted addition on the first white noise signal and the second white noise signal by using the weighting coefficient; and to generate the output signal by adding together the input signal and a signal corresponding to the third white noise signal, wherein the processing circuitry is configured so that the phase characteristic of the second white noise signal becomes the same as the phase characteristic of the first white noise signal.

Abstract: An audio signal processing apparatus includes; a first correlation component separating unit configured to predict a first signal from a second signal in a predetermined period to generate a first correlation component signal and to separate the first non-correlation component signal from the first signal by using the first correlation component signal; a second correlation component separating unit configured to predict a second signal from the first signal in the predetermined period to generate a second correlation component signal and to separate the second non-correlation component signal from the second signal by using the second correlation component signal; a correlation component synthesizing unit configured to synthesize the first correlation component signal and the second correlation component signal to generate a synthesized correlation component signal; a first gain multiplying unit configured to multiply the synthesized correlation component signal by a gain to generate a correlation component