Abstract: This electronic device includes a sensor that acquires a pulse wave of a subject, and a controller that estimates the blood glucose level of the subject on the basis of an estimation expression that is created on the basis of a blood glucose level and a pulse wave corresponding to the blood glucose level, and the pulse wave of the subject acquired by the sensor.

Abstract: A mobile terminal apparatus capable of reducing inconvenience, a program, and a biological information measurement system are provided. A mobile terminal apparatus includes a gyro sensor configured to detect a motion factor and a controller configured to perform measurement operation of biological information of a user on the basis of the motion factor detected due to a movement of the user. The controller starts or stops the measurement processing on the basis of the motion factor.

Abstract: An electronic device includes a wearing portion to be worn by a subject and a sensor unit that includes a sensor configured to detect a pulse wave of the subject. The sensor unit includes a displacement portion configured to contact a measured part of the subject and to be displaced in accordance with the pulse wave of the subject when the wearing portion is worn by the subject.

Abstract: An electronic device includes a sensor that acquires a pulse wave and a controller that calculates an index based on the acquired pulse wave. The controller estimates the subject's state of glucose metabolism or lipid metabolism using the calculated index.

Abstract: A method, display apparatus, and display system for displaying an image of an abdominal cross-section includes storing plural abdominal CT sample images that have at least either of different visceral fat areas or different subcutaneous fat areas, estimating at least one of a visceral fat area and a subcutaneous fat area of an abdominal cross-section, and displaying an abdominal CT sample image corresponding to the estimated at least one of the visceral fat area and the subcutaneous fat area from among the plural abdominal CT sample images.

Abstract: A method, an apparatus, and a system for estimating body fat that are capable of measuring a portion of an abdominal outline by a simple method are provided. A method of estimating the body fat according to the present embodiments includes: a step of obtaining orientation information and motion information of the apparatus itself; a step of calculating a portion of an abdominal outline by a control unit based on the orientation information and the motion information; and a step of estimating, based on the portion of the abdominal outline, at least one of a visceral fat area and a subcutaneous fat area of the abdominal cross-section.

Abstract: An electronic device includes a sensor unit configured to acquire a pulse wave of a subject's carotid artery and a controller configured to estimate a condition of the subject's carotid artery based on the pulse wave acquired by the sensor unit.

Abstract: A system includes a measuring instrument including a first sensor that acquires orientation information of the measuring instrument and a device that obtains movement information of the measuring instrument, and a controller that estimates muscle area in a cross-section of a human body on the basis of shape characteristics calculated from an at least partial contour of the human body, the at least partial contour being calculated on the basis of the orientation information and the movement information.

Abstract: A method, an apparatus, and a system for estimating body fat that are capable of measuring a portion of an abdominal outline by a simple method are provided. A method of estimating the body fat according to the present embodiments includes: a step of obtaining orientation information and motion information of the apparatus itself; a step of calculating a portion of an abdominal outline by a control unit based on the orientation information and the motion information; and a step of estimating, based on the portion of the abdominal outline, at least one of a visceral fat area and a subcutaneous fat area of the abdominal cross-section.

Abstract: The switching frequency in an envelope amplifier is set below that of a transmission RF signal. A transmitter according to the present invention includes a transmission amplifier (3) that amplifies an input signal and generates an output signal, a voltage control amplifier (6) that controls a power supply voltage of the transmission amplifier (3), and an envelope calculation unit (4) that calculates an approximate envelope signal that is an envelope signal of the input signal and is sampled at a lower frequency than the input signal. The voltage control amplifier (6) controls the power supply voltage of the transmission amplifier (3) based on the approximate envelope signal.

Abstract: Provided is a device which can utilize a motion sensor installed in a mobile device. A smartphone includes a motion sensor and a controller. The motion sensor detects a motion factor. The controller processes the motion factor detected by the motion sensor as a self-control factor. The controller can process the motion factor detected by the motion sensor as a vital-sign factor of a user.

Abstract: In one aspect, when detecting an event such as receiving emails, missed calls, a schedule notification, or the like, a mobile electronic device executes a process for expanding a first operation part associated with the event on a display module and displaying a second operation part indicating a detail of the event within the expanded first operation part. For example, upon detecting an operation applied onto the first operation part via the touch screen, the mobile electronic device executes a process associated with the first operation part, and upon detecting an operation applied onto the second operation part, the mobile electronic device executes a process associated with the second operation part.

Abstract: A wireless communication device includes: a plurality of antennas receiving signals transmitted from one or more transmission antennas; a synthesis calculation unit performing a synthesis calculation of respective reception signals received by the plurality of antennas and reception weights corresponding to respective antenna ports; a channel estimation unit calculating respective estimated channel values from respective synthesized signals obtained by the synthesis calculation for the respective antenna ports, and a decoding unit performing decoding from the respective estimated channel values and the synthesized signals for the respective antenna ports.

Abstract: A wireless communication device includes: a plurality of antennas receiving signals transmitted from one or more transmission antennas; a synthesis calculation unit performing a synthesis calculation of respective reception signals received by the plurality of antennas and reception weights corresponding to respective antenna ports; a channel estimation unit calculating respective estimated channel values from respective synthesized signals obtained by the synthesis calculation for the respective antenna ports, and a decoding unit performing decoding from the respective estimated channel values and the synthesized signals for the respective antenna ports.

Abstract: The switching frequency in an envelope amplifier is set below that of a transmission RF signal. A transmitter according to the present invention includes a transmission amplifier (3) that amplifies an input signal and generates an output signal, a voltage control amplifier (6) that controls a power supply voltage of the transmission amplifier (3), and an envelope calculation unit (4) that calculates an approximate envelope signal that is an envelope signal of the input signal and is sampled at a lower frequency than the input signal. The voltage control amplifier (6) controls the power supply voltage of the transmission amplifier (3) based on the approximate envelope signal.

Abstract: A light source apparatus of the present invention comprises a semiconductor light emitting device which emits light, a wavelength converting member which receives the light emitted by the semiconductor light emitting device and emits light of a wavelength longer than that of the original light, and a wavelength selecting member which is disposed between the semiconductor light emitting device and the wavelength converting member and reflects and transmits the incident light with different reflectivity and different transmittance depending on the wavelength of the incident light.

Abstract: To provide a low-cost FBG sensing device having a high reliability, suitable for high-speed measurement such as vibration measurement, able to perform a remote measurement, and simple data processing, the FBG sensing device comprising one or more light sources each outputting a light having fixed output wavelength, one or more fiber-Bragg gratings each having a reflection wavelength band having an attenuation band where the magnitude of reflection attenuates with distance from the center wavelength, the fiber-Bragg gratings reflecting the lights output from said light sources, light receiving units corresponding said fiber-Bragg gratings respectively and receiving the light reflected by the corresponding fiber-Bragg grating, wherein intensities of reflected lights each of which changes corresponding to the attenuation band that changes due to a distortion produced at each of the fiber-Bragg gratings are detected to detect the distortions.

Abstract: To provide a low-cost FBG sensing device having a high reliability, suitable for high-speed measurement such as vibration measurement, able to perform a remote measurement, and simple data processing, the FBG sensing device comprising one or more light sources each outputting a light having fixed output wavelength, one or more fiber-Bragg gratings each having a reflection wavelength band having an attenuation band where the magnitude of reflection attenuates with distance from the center wavelength, the fiber-Bragg gratings reflecting the lights output from said light sources, light receiving units corresponding said fiber-Bragg gratings respectively and receiving the light reflected by the corresponding fiber-Bragg grating, wherein intensities of reflected lights each of which changes corresponding to the attenuation band that changes due to a distortion produced at each of the fiber-Bragg gratings are detected to detect the distortions.

Abstract: Provided is a wideband ASE light source, which has a high output and a little ripples in a wide band and the output of which is stable. In a wideband ASE light source constructed of a pumping light source that generates a pumping light, an erbium-doped optical fiber that generates an ASE light by incident pumping light, a reflector that is arranged at one terminal portion of the erbium-doped optical fiber and reflects the ASE light radiated from the erbium-doped optical fiber, an optical multiplexer that is arranged between a terminal portion of the erbium-doped optical fiber and the pumping light and optically multiplexes and demultiplexes the pumping light with or from the ASE light and an optical isolator that is arranged between the third terminal portion of the optical multiplexer and an output terminal and removes a return light to the erbium-doped optical fiber, the optical multiplexer has a maximum value of isolation in a wavelength band of 1570 nm to 1600 nm.

Abstract: A broadband ASE light source is provided which comprises an amplifying optical fiber doped with rare earth; a pumping light source and an output port both which are connected to one end of the amplifying optical fiber via a multiplexer; and a reflecting or circulating member which is connected to the other end of the amplifying optical fiber, whereby the amplifying optical fiber emits ASE light containing a first and second wavelength bands through the port. Particularly, a second pumping light source may be connected to the other end of the amplifying optical fiber via another multiplexer to widen the wavelength band to longer wavelength side. Further, using the amplifying Er-doped optical fiber with the pumping light sources having wavelength of a 980 nm band, the ASE light source can emit a flattened broadband of 1530 to 1610 nm, combining the two wavelength bands of 1530 to 1570 mn and 1570 to 1610 nm.