Abstract: A wrist-worn input device measuring a biopotential for use in gesture inputting, includes a band that forms at least part of a tubular structure having a first opening and a second opening at the two ends thereof in an axial direction thereof, an electrode open to an internal surface of the band, a position determination unit disposed close to the first opening and having a shape to be engaged with at least part of a periphery of the styloid process of ulna of a user, a biopotential measurement unit that measures the biopotential of the user using the electrode, and a measured potential transmitter that outputs the biopotential of the user.

Abstract: A training apparatus includes a display that displays a video image including an image of a moving object, a rotation speed acquirer that acquires a rotation speed of a pedal driven by a user, and a control circuit that changes a moving speed of the object in the video image. The control circuit controls the moving speed as follows. The moving speed of the object in the video image is increased at an acceleration ?1 (>0). If an increase in the pedal rotation speed occurs after the moving speed of the object is increased, the moving speed of the object is increased at an acceleration ?2 (<?1). In a case where an increase in the rotation speed of the pedal occurs after the moving speed of the object is increased at the acceleration ?2, the moving speed of the object is further continuously increased at the acceleration ?2.

Abstract: A freshness estimation method includes obtaining an absorbance spectrum that is obtained by irradiating an eye of a fish with light having all or part of a wavelength band from 315 nm to 450 nm; and estimating freshness of the fish by using a shape of the obtained absorbance spectrum.

Abstract: An image display device includes: an eyeball angular velocity calculation unit that calculates an eyeball angular velocity of a viewer viewing an object by an equation: eyeball angular velocity=(2 arctan(s/2d))/t, using a movement distance moved by the object included in a moving image between two sequential frames on a screen, a time interval between the two sequential frames, and a viewing distance, a distance between the viewer and the screen; a determination unit that determines whether the calculated eyeball angular velocity is not less than a lower limit of an eyeball angular velocity in a saccadic eye movement; an image processor that (a) stops the moving image or replaces the moving image with a single color image when it is determined that the calculated eyeball angular velocity is not less than the lower limit, (b) does not stop the moving image and does not replace the moving image with the single color image when it is determined that the eyeball angular velocity is less than the lower limit.

Abstract: A hearing aid gain determination system includes: a biological signal measurement section for measuring an electroencephalogram signal; a sound group determination section for determining a frequency of a sound group including first, second and third sounds; a sound pressure determination section for determining sound pressures of the first to third sounds so that the respective sound pressures are less than a threshold and that the first to third sounds consecutively decrease; an output section for presenting the first to third sounds at the determined frequency and sound pressures; a characteristic amount extraction section for extracting a characteristic amount concerning time-frequency information of an event-related potential in a time range after presenting the first to third sounds; a gain determination section for determining a hearing aid gain for the frequency of the sound stimulation group against a predetermined criterion based on the characteristic amounts.

Abstract: A risk-of-falling determination apparatus includes a walk information obtainer that obtains walk information of a user, a myoelectric sensor that measures a first myoelectric potential difference on an anterior surface of a thigh of the user and a second myoelectric potential difference on a posterior surface of the thigh, a control circuit that identifies an interval of a stance phase by using the walk information, calculates a degree of co-contraction at a corresponding leg of the user on the basis of the first and second myoelectric potential differences for the stance phase, and determines whether the degree of co-contraction is greater than or equal to a first threshold, and an outputter that outputs a signal indicating that the user has a high risk of falling if the degree of co-contraction is greater than or equal to the first threshold.

Abstract: In an imaging device, a difference calculation unit calculates a differential signal between charge signals that have been accumulated and are held by first and charge holding units with different timings. A multiple sampling unit performs multiple sampling processing on the differential signal, and an analog digital conversion unit converts a signal that has undergone multiple sampling processing to a digital signal. That is, multiple sampling processing is performed on a differential signal with a higher sparisty than that of an image signal.

Abstract: A viewer includes a multifocal lens capable of setting one of a plurality of focal lengths. When a measuring section detects a change in gazing point distance, a selection section selects a focal length to be set among the plurality of focal lengths, and a determiner determines a time duration before a focal length of the multifocal lens is changed. A controller changes the focal length of the multifocal lens when a detector detects a blink or saccadic eye movement of the user before the determined time duration elapses.

Abstract: An elapsed-time determination apparatus includes: a storage unit that stores correlation information indicating a correlation between a state of a melanophore of a fish and an amount of time elapsed since the death of the fish; an acquisition unit that acquires an image of a fish; an analysis unit that detects a state of a melanophore of a fish by analyzing an image acquired by the acquisition unit; and a determination unit that determines the amount of time elapsed since the death of the fish in accordance with the state of the melanophore of the fish detected by the analysis unit, based on the correlation information, and outputs determination results.

Abstract: A biological information monitoring system includes: a measuring circuitry configured acquire information on a potential difference between two first electrodes that is placed on a first thorax of a user, wherein the first thorax is in a symmetric position to a second thorax that is positioned at the same side as a heart of the user; a detection circuitry configured to detect a plurality of S wave peaks based on the information on the potential difference to generate time-series information on the plurality of S wave peaks; and a processing circuitry configured to determine respiratory information on the user based on the time-series information on the plurality of S wave peaks, and to output the respiratory information as biological information.

Abstract: A muscle activity amount determining device includes a shape obtainer that obtains a shape of a muscle of a user when the user is doing certain exercise; a position identifying unit that identifies a position of the muscle of the user when the user is doing the exercise; a determination circuit that refers to a determination reference that indicates a corresponding relationship between the position and shape of the muscle and an activity amount of the muscle, and determines the activity amount of the muscle using the position of the muscle identified by the position identifying unit and the shape of the muscle obtained by the shape obtainer; and an outputter that outputs the activity amount, determined by the determination circuit.

Abstract: In an imaging device, a difference calculation unit calculates a differential signal between charge signals that have been accumulated and are held by first and charge holding units with different timings. A multiple sampling unit performs multiple sampling processing on the differential signal, and an analog digital conversion unit converts a signal that has undergone multiple sampling processing to a digital signal. That is, multiple sampling processing is performed on a differential signal with a higher sparsity than that of an image signal.

Abstract: A master apparatus for a master slave apparatus, the master apparatus controlling a slave apparatus, the master apparatus including a hand operation mechanism configured to be operated by a person for opening and closing a hand mechanism including a pair of opening and closing members, the hand mechanism being connected to a slave mechanism, the slave apparatus including the slave mechanism and the hand mechanism. The hand operation mechanism includes a fixed unit, an opening and closing operation unit, and a slide unit. The opening and closing operation unit is connected to the slide unit, is capable of reciprocating with respect to the fixed unit, and is openable and closable with respect to the fixed unit. The master hand controlling device controls opening and closing of the pair of opening and closing members on the basis of an opening and closing amount of the opening and closing operation unit.

Abstract: A watching apparatus includes a housing, a display provided on the housing, a camera provided on the housing, a determiner that determines a watching target in a camera image captured by the camera, a position detector that detects a position of the watching target in the camera image, and a display controller that displays an application image that does not include the camera image on the display on the basis of the detected position of the watching target.

Abstract: An electrical stimulation apparatus includes a sleep depth determiner that determines a sleep depth by using biological information of a user who is sleeping; an electrical muscular stimulation intensity determiner that determines an electrical muscular stimulation intensity on basis of the sleep depth; and an output that output electrical muscular stimulation by using electrodes arranged on a skin of the user at the electrical muscular stimulation intensity determined by the electrical muscular stimulation intensity determiner.

Abstract: A freshness estimation method includes obtaining an absorbance spectrum that is obtained by irradiating an eye of a fish with light having all or part of a wavelength band from 315 nm to 450 nm; and estimating freshness of the fish by using a shape of the obtained absorbance spectrum.

Abstract: In an imaging device, a multiple sampling unit performs multiple sampling processing on a charge signal of a captured image, and an analog digital conversion unit converts a signal which has undergone multiple sampling processing to a digital signal. In a reconstruction device, an image reconstruction unit performs reconstruction processing on the digital signal transmitted from the imaging device using information regarding multiple sampling processing transmitted from the imaging device, and obtains an image signal.

Abstract: An exemplary electronic device is in a housing to be gripped by a right hand and a left hand of a user, and has a plurality of manipulable portions. The electronic device includes: electrodes placed at positions which come in contact with the right hand and left hand of the user gripping the housing; an extractor for extracting an electrocardiographic component of the user from a potential difference between the electrodes; a determination section for determining whether the extracted electrocardiographic component is in a positive direction or a negative direction by referring to a prestored criterion; and a change section for, in accordance with a result of determination by the determination section, changing assignment between each of the plurality of manipulable portions and a manipulation signal generated in response to a manipulation.

Abstract: An image capturing system includes a photoelectric conversion unit, a charge holding unit, a multiple sampling information setting unit, a multiple sampling unit, a conversion unit, and an image reconstruction unit. The photoelectric conversion unit converts optical signals received by a plurality of pixels to electric signals. The charge holding unit stores the electric signals and holds the electric signals as charge signals. The multiple sampling information setting unit sets multiple sampling information used for a multiple sampling process. The multiple sampling information includes first multiple sampling information and second multiple sampling information. The multiple sampling unit performs the multiple sampling process using the multiple sampling information and the charge signals so as to output signals. The conversion unit converts the output signals to digital signals.

Abstract: An alert information presenting apparatus includes an undressing condition determiner that determines, by using a movement speed of the user, a second time period indicating a time period before undressing, and a third time period indicating a time period after undressing, a heartbeat acquirer that acquires a heartbeat timing in the second time period and a heartbeat timing in the third time period, a pulse wave acquirer that acquires a pulse wave timing in the second time period and a pulse wave timing in the third time period, a blood pressure calculator that calculates a pre-undressing blood pressure by using a pre-undressing heartbeat timing and a pre-undressing pulse wave timing, and calculates a post-undressing blood pressure by using a post-undressing heartbeat timing and a post-undressing pulse wave timing, and an information presenter that presents the user with alert information based on a difference between the pre-undressing and post-undressing blood pressures.