Abstract: In general, according to one embodiment, an electronic device includes circuitry. The circuitry is configured to acquire audio data obtained by collecting sounds around the electronic device, and to identify, based on the acquired audio data, the type of the surrounding environment using a density of people around the electronic device or information as to whether a surrounding natural environment is present.

Abstract: An optical unit includes a plurality of paraboloid mirrors configured to reflect light fluxes from a plurality of LDs and to guide them to a concave lens. The light fluxes from the paraboloid mirrors are a plurality of convergent light fluxes, and the paraboloid mirrors reflect the light fluxes from the LDs such that as the convergent light fluxes travel farther away from the paraboloid mirrors, distances therebetween become shorter.

Abstract: According to one embodiment, a wearable electronic apparatus detects movement of a human body wearing the apparatus. The apparatus causes a first number of light emitters to emit light when a magnitude of the detected movement is less than a first value. The first number of light emitters is among a plurality of light emitters which emit light having different wavelengths, in which the light are received by a light receiver to obtain physiological information. The apparatus causes a second number greater than the first number of light emitters among the plurality of light emitters to emit light when the magnitude of the detected movement is greater than or equal to the first value.

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: An echo cancellation device includes: a full-band echo canceller that generates a pseudo-echo signal; a downsample processor that downsamples a received signal and extracts a low-band component delayed by a delay amount D1; a delay controller that delays the low-band component by a delay amount D2; a delay controller that delays an output signal of the delay controller by a delay amount D3; a low-band echo canceller that generates a pseudo-echo signal delayed by a delay amount D1+D2; and an upsample processor that upsamples the low-band pseudo-echo signal to generate a full-band pseudo-echo signal delayed by the delay amount 2D1+D2. The delay controllers control the delay amounts D2 and D3 such that a tap length LA satisfies a condition of LA ?2D1+D2=D2+D3, the tap length LA indicating a response time of the adaptive filter in the full-band echo canceller.

Abstract: According to an embodiment, for example, an electronic device wearable on a body, the electronic device including: a first sensor to emit light to a body and to output a signal corresponding to a received amount of light that has passed through a body or has been reflected by a body; and a circuitry to determine whether the electronic device is on the body, by using amplitude and frequency information corresponding to a pulse in the signal output from the first sensor.

Abstract: According to an embodiment, an electronic device includes, for example, an indicator, a sensor, and circuitry. The indicator is configured to notifying a user by using at least one of a sound and vibration. The sensor is configured to detect first information regarding a body of a user, the first information possibly subject to disturbance during notifying by the indicator. The circuitry is configured to replace the first information during notifying by the indicator with second information different from the first information.

Abstract: An echo cancelling device splits a low-band signal through LPFs having characteristics which do not cause aliasing during downsampling of downsamplers, and splits a high-band signal through HPFs having characteristics which do not cause aliasing during downsampling of downsamplers. The echo canceling device generates a mid-band signal by subtracting the low-band signal and the high-band signal from a pre-split signal by adder-subtractors, and cancels an echo on a band-by-band basis.

Abstract: According to one embodiment, a wearable electronic device includes communication circuitry configured to communicate with an external device, and transmit access right information to the external device, the access right information for a write access right to first data stored in a server, the first data corresponding to a user of the electronic device.

Abstract: According to one embodiment, an electronic apparatus determines whether a vital sign sensor is in contact with a human body and determines whether a contact state between the vital sign sensor and the human body is stable. The apparatus obtains an effective time-series signal by removing, from an output time-series signal of the vital sign sensor, a first time-series signal and a second time-series signal, the first time-series signal corresponding to a time period of a non-contact state and a second time-series signal corresponding to a time period of an unstable state. The apparatus analyzes the effective time-series signal to measure a value associated with a vital sign signal of the human body.

Abstract: According to one embodiment, a first processing module adds, to a first queue, output sound data output from a first task, with a time stamp attached thereto. A second processing module adds, to a second queue, input sound data received from a microphone, with a time stamp attached thereto. A controller fetches first output sound data as reference data from the first queue, the first output sound data having a time stamp whose time difference from a time stamp of first input sound data in the second queue falls within a predetermined range. An echo canceller performs echo cancelling processing to cancel an echo component in the first input sound data based on the reference data.

Abstract: An illumination optical system illuminates an image display element and includes a first lens array configured to divide light emitted from a light source, a second lens array configured to receive light from the first lens array, and a condenser optical system configured to guide light from the second lens array to the image display element, and a conjugate point of the image display element is located between an incident surface of the first lens array and an incident surface of the second lens array.

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 electronic apparatus wearable by a user includes one or more sensors, a processor and a controller. The processor is configured to determine whether the user is in a waking state or a sleeping state by using a detected value of at least one sensor of the one or more sensors. The controller is configured to set an operation mode of the apparatus in a first apparatus mode if it is determined that the user is in a waking state, and to set the operation mode of the apparatus in a second apparatus mode if it is determined that the user is in a sleeping state.

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: According to one embodiment, an electronic apparatus includes a sensor, an acquisition module, an estimation module, and a transmission controller. The sensor is configured to detect biomedical data of a user. The acquisition module is configured to acquire first and second biomedical data detected by the sensor. The estimation module is configured to estimate the user's status based on the first biomedical data. The transmission controller is configured to transmit the second biomedical data to an external apparatus at a timing in accordance with the user's estimated status.

Abstract: According to one embodiment, an audio device includes a first driver, a first acoustic cylinder, a body temperature sensor, and a corrector. The first driver outputs a sound. The first acoustic cylinder includes a first pathway configured to be passed through by a sound. The first pathway includes an opening configured to face an eardrum of a wearer. The body temperature sensor is provided substantially in an center of the opening or outside of a plane of the opening. The corrector corrects first audio data to suppress resonance in the first pathway. The first driver outputs corrected first sound according to corrected first audio data.

Abstract: According to one embodiment, an electronic apparatus includes a receiver, a generator and a transmitter. The receiver receives operation data indicative of an operating period from each of one or more electronic apparatuses used by a first user, and receives viewing data from a first electronic apparatus of the one or more electronic apparatuses, the viewing data indicative of a program viewed by the first user. The generator generates living pattern data indicative of a living pattern of the first user using the operation data and the viewing data. The transmitter transmits the living pattern data to an electronic apparatus used by a second user.

Abstract: According to one embodiment, an electronic apparatus includes a processor and a display processor. The processor acquires a target value about health of a user and acquires behavioral information related to the target value from a recorder configured to record a behavior of the user and to acquire physiological information of the user. The display processor displays a first screen includes a performance value according to the behavioral information, the target value, and an advertisement selected according to the physiological information on a display.

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.