Abstract: A voice analyzer includes a plate-shaped body, a plurality of first voice acquisition units that are placed on both surfaces of the plate-shaped body and that acquire a voice of a speaker, a sound pressure comparison unit that compares sound pressure of a voice acquired by the first voice acquisition unit placed on one surface of the plate-shaped body with sound pressure of a voice acquired by the first voice acquisition unit placed on the other surface and determines a larger sound pressure, and a voice signal selection unit that selects information regarding a voice signal which is associated with the larger sound pressure and is determined by the sound pressure comparison unit.

Abstract: A voice analyzer includes a first voice acquisition unit provided in a place where a distance of a sound wave propagation path from a mouth of a user is a first distance, plural second voice acquisition units provided in places where distances of sound wave propagation paths from the mouth of the user are smaller than the first distance, and an identification unit that identifies whether the voices acquired by the first and second voice acquisition units are voices of the user or voices of others excluding the user on the basis of a result of comparison between first sound pressure of a voice signal of the voice acquired by the first voice acquisition unit and second sound pressure calculated from sound pressure of a voice signal of the voice acquired by each of the plural second voice acquisition units.

Abstract: A motion analyzer may include a motion detection unit, a speaking detection unit, and a determination unit. The motion detection unit may detect motion of a part of a body of a subject. The speaking detection unit may detect speaking of the subject. The determination unit may determine that the subject has performed predetermined motion when motion of a part of the body is detected by the motion detection unit and speaking of the subject is detected by the speaking detection unit.

Abstract: A production method of an optical waveguide includes: preparing a laminated body that includes a first clad layer and at least a core layer laminated on the first clad layer; forming a light propagating optical waveguide core by cutting the core layer by use of a dicing saw from a side where the core layer is laminated while intruding an edge of a blade portion of the dicing saw into the first clad layer so as to partially cut the first clad layer; and embedding at least a cut portion of the laminated body with a second clad layer.

Abstract: A safety valve (40, 140, 240, 340) formed in a portion of a case of a sealed battery includes a fracture groove portion (50, 150, 250, 350) formed in a thin portion (42, 142, 242, 342). The thin portion (42, 142, 242, 342) is formed in a horizontally long shape or a vertically long shape that has a curved outer edge portion (45, 145, 245, 345) in which at least a portion of the outer edge portion (43) is curved. This thin portion (42, 142, 242, 342) has a center straight groove portion (60, 160, 260, 360) that extends in the longer direction of the thin portion in the center portion of the thin portion, and a pair of side groove portions (70, 170, 270, 370) that are formed in both side in the longer direction of the center straight groove portion (60, 160, 260, 360) and connected to longer direction end portions (60A, 60B, 160A, 160B, 260A, 260B) of the center straight groove portion.

Abstract: A positioning and ranging system includes a transmitter transmits a plurality of impulses; and a receiver receives the impulses; the receiver includes an initial detection unit records a sensing time of a first impulse among a plurality of impulses transmitted by the transmitter; a sensing margin detection unit for detecting a sensing margin being a difference between a field intensity of the first impulse and a reception limit field intensity of the receiver; a correction unit identifies a sensing error differential time based on a given relationship between the sensing margin and the sensing error differential time, and corrects the sensing time detected by the initial detection unit using the identified sensing error differential time; the system measures a distance between the transmitter and the receiver and a position of the transmitter based on a time the transmitter transmits the first impulse and a time the receiver receives the impulse.

Abstract: A voice analyzer includes an apparatus body, a strap that is connected to the apparatus body to make the apparatus body hung from a neck of a wearer, a first voice acquisition unit that acquires a voice of a speaker and is disposed in either a left or right strap when viewed from the wearer, a second voice acquisition unit that acquires the voice of the speaker and is disposed in the opposite strap in which the first voice acquisition unit is disposed, and an arrangement recognition unit that recognizes arrangements of the first and second voice acquisition units, when viewed from the wearer, by comparing a voice signal of the voice acquired by the first voice acquisition unit with sound pressure of a heart sound of the wearer acquired by the second voice acquisition unit.

Abstract: A sound analysis apparatus includes a sound information obtaining section chat obtains information relating to a sound acquired by a sound acquiring section that acquires the sound and distinguishes a spoken voice of a wearer from a spoken voice of another person, a phase difference deriving section that derives a relationship between a frequency and a phase difference with respect to the sound acquired by the plural sound acquiring sections, a dispersion deriving section that derives a dispersion that is the level of irregularity of the derived phase difference, and a distance deriving section that derives a distance between the wearer and the other person using a first dispersion derived in a case where the sound is distinguished as the spoken voice of the other person and a second dispersion derived in a case where the sound is distinguished as the spoken voice of the wearer.

Abstract: A voice analyzer includes a voice information acquiring unit that acquires information about voices acquired by a first voice acquiring unit which acquires the voice and is worn by a first wearer and a second voice acquiring unit which acquires the voice and is worn by a second wearer from each of the wearers, and a distance calculation unit that calculates a distance between the first wearer and the second wearer on the basis of (a) speaker identification information, which is information for determining whether the voice acquired by the first voice acquiring unit and the voice which is the same as that acquired by the first voice acquiring unit and is acquired by the second voice acquiring unit are spoken by the wearers or other persons, and (b) a phase difference between sound waves with plural frequencies included in the voices.

Abstract: A voice analyzer includes a plate-shaped body, a plurality of first voice acquisition units that are placed on both surfaces of the plate-shaped body and that acquire a voice of a speaker, a sound pressure comparison unit that compares sound pressure of a voice acquired by the first voice acquisition unit placed on one surface of the plate-shaped body with sound pressure of a voice acquired by the first voice acquisition unit placed on the other surface and determines a larger sound pressure, and a voice signal selection unit that selects information regarding a voice signal which is associated with the larger sound pressure and is determined by the sound pressure comparison unit.

Abstract: A motion analyzer includes a motion detection unit that detects motion of a part of a body of a subject, a speaking detection unit that detects speaking of the subject, and a determination unit that determines that the subject has performed predetermined motion when motion of a part of the body is detected by the motion detection unit and speaking of the subject is detected by the speaking detection unit.

Abstract: A voice analyzer includes a first voice acquisition unit provided in a place where a distance of a sound wave propagation path from a mouth of a user is a first distance, plural second voice acquisition units provided in places where distances of sound wave propagation paths from the mouth of the user are smaller than the first distance, and an identification unit that identifies whether the voices acquired by the first and second voice acquisition units are voices of the user or voices of others excluding the user on the basis of a result of comparison between first sound pressure of a voice signal of the voice acquired by the first voice acquisition unit and second sound pressure calculated from sound pressure of a voice signal of the voice acquired by each of the plural second voice acquisition units.

Abstract: A voice analyzer includes an apparatus body, a strap that is connected to the apparatus body to make the apparatus body hung from a neck of a wearer, a first voice acquisition unit that acquires a voice of a speaker and is disposed in either a left or right strap when viewed from the wearer, a second voice acquisition unit that acquires the voice of the speaker and is disposed in the opposite strap in which the first voice acquisition unit is disposed, and an arrangement recognition unit that recognizes arrangements of the first and second voice acquisition units, when viewed from the wearer, by comparing a voice signal of the voice acquired by the first voice acquisition unit with sound pressure of a heart sound of the wearer acquired by the second voice acquisition unit.

Abstract: A voice analyzer includes an apparatus body, a strap that is connected to the apparatus body and is used to hang the apparatus body from a neck of a user, a first voice acquisition unit provided in the strap or the apparatus body, a second voice acquisition unit provided at a position where a distance of a sound wave propagation path from a mouth of the user is smaller than a distance of a sound wave propagation path from the mouth of the user to the first voice acquisition unit, and an identification unit that identifies a sound, in which first sound pressure acquired by the first voice acquisition unit is larger by a predetermined value or more than second sound pressure acquired by the second voice acquisition unit, on the basis of a result of comparison between the first sound pressure and the second sound pressure.

Abstract: A polymer optical waveguide includes: at least one core through which light propagates; a cladding which surrounds the core and has a refractive index less than that of the core; at least one conductive wire being provided on at least one side of the cladding, the polymer optical waveguide having a sheet shape, the conductive wire including a conductive layer which is provided on the at least one side of the cladding and being partitioned by a first groove, and the core being formed between second grooves each of which is formed in at least a part of the first groove.

Abstract: According to an aspect of the invention, an optical functional element includes a substrate, a semiconductor element portion, and a light emitting element portion. The semiconductor element portion includes a first part of a semiconductor multi layer structure formed on the substrate. The light emitting element portion includes a second part of the semiconductor multi layer structure and light emitting element structure formed on the second part of the semiconductor multi layer structure.

Abstract: A method of manufacturing an optical waveguide includes forming a core layer on a first clad layer, forming a second clad layer on the core layer, forming a first groove including at least one inclined surface in the second clad layer and the core layer to be in substantially parallel to and near one end of the second clad layer and one end of the core layer, the at least one inclined surface of the first groove having such an angle that the core layer is exposed when viewed above the second clad layer, forming a second groove including at least one inclined surface in the second clad layer on a inner side of the first groove, forming a separation groove in the clad layers and the core layer in a direction intersecting the first groove, and forming a plurality of cores intersecting the first groove.

Abstract: A polymer optical waveguide includes: a core; and a cladding enclosing the core and extending along a direction of light propagation, the polymer optical waveguide having a substantially rectangular parallelepiped shape, and the polymer optical waveguide having, at least at a position near one end thereof in a longitudinal direction, a groove that has a surface inclined at an angle of 45° with respect to the light propagation direction which reflects light propagating through the core so as to change the light propagation direction by 90°.

Abstract: A stacked piezoelectric device 1 including a ceramic laminate formed by laminating piezoelectric ceramic layers and inner electrode layers alternately and a pair of side electrodes. The inner electrode layers 13 and 14 have inner electrode portions 131 and 141 and the recessed portions 132 and 142. The ceramic laminate 15 has the stress absorbing portions 11 and 12. A recessed distance of one of two of the recessed portions 132 and 142 which interleave the stress absorbing portions 11 and 12 therebetween which is located on the same side surface as the stress absorbing portion 11 or 12 is greater than the depth of the stress absorbing portion 11 and 12.

Abstract: A sealed battery is provided in which a case is partially provided with a safety valve that is provided with a thin portion, which is formed thinner than the peripheral portion of the safety valve. A portion of the safety valve surrounding the thin portion is provided with a slit for preventing heat conduction from the other portions of the case to the thin portion, said slit being formed so as to surround the thin portion.