Olympus Corporation

Harada Industry Co., Ltd.

Mitsubishi Electric Corporation

University of California

Olympus Medical Systems Corporation

Massachusetts Institute of Technology

Kenji Taira

Hiroyoshi Yajima

Hideaki Maehara

Tetsuo Nonami

Makoto Igarashi

Masato Fujiwara

Shinichi Takimoto

Sumio Kato

Momoyo Hino

Bahram Jalali

Akira Sato

Masahiro Kaneko

Tsutomu Yamamoto

Hidetoshi Mishima

Hiroya Fukuyama

Ryosuke Ito

Hideyuki Takaoka

Hirokazu Kubo

Hiroyuki Nishida

Keisuke Goda

Ken Fujinuma

Tetsuro Wada

Junichi Kawahata

Eiji Ueda

Mengxiong Wang

Akitomo Takahashi

Robert Huber

Kenta Noguchi

Momoyo Nagase

Keiichi Gakuhari

Ayaka Suzuki

Toshiharu Narita

Akiyoshi Kodaka

Ryoga Suzuki

A low-profile antenna device includes a base plate, a top load element, and an antenna cover. The top load element has a ridge line part, a side surface part, and a slit. The ridge line part extends in the longitudinal direction of the top load element so as to be inclined with respect to the base plate. The slit extends from one side surface part to the middle of the other side surface part so as to pass through the ridge line part to divide the ridge line part into a front side part and a rear side part. The top load element is folded such that the ridge line part is changed in height at the slit so as to bring the ridge line part close to the topmost position inside the antenna cover.

Low-profile antenna device

An object of the present invention is to provide a water level measurement device and a shoreline extraction method each of which is capable of stably measuring the water level. A pixel selection unit () selects a pixel of interest () from a designated area () designated from a captured image (), and an identification image extraction unit () extracts identification images (), () each coming in contact with the pixel of interest (). The identification unit () calculates an identification strength indicating a degree to which an area corresponding to each of the identification images (), () is a water area, on a basis of the result of machine learning related to identification between the water area and a non-water area. The shoreline extraction unit () extracts a shoreline in the captured image from the identification strength of the area corresponding to each of the identification images (), (), on a basis of the result of machine learning related to the identification between the water area and the non-water area by the learning unit ().

Water level measurement device and shoreline extraction method

An attitude estimation apparatus () includes: a data acquiring unit () for acquiring observation data; a range-measurement point coordinate calculator (A) for calculating geodetic coordinates of a range-measurement point in a geodetic coordinate system using positioning data, ranging data, actual attitude data, and an estimated value of an unknown parameter representing an attitude of a flying object; an image coordinate calculator (B) for calculating coordinates of a projected point by performing projection transformation from the geodetic coordinate system to an image coordinate system on the geodetic coordinates; an image matching processor () for detecting image coordinates of the range-measurement point appearing in a first captured image by executing image matching between the first captured image and a second captured image selected from captured images; and an attitude estimator () for correcting the estimated value such that a magnitude of a difference between the coordinates of the projected point and the image coordinates decreases.

Attitude estimation apparatus, attitude estimation method, and observation system

To provide a cable connection structure used in a vehicle antenna device, capable of being reduced in size, easy to assemble, and having required tensile strength. The cable connection structure includes a connection terminal, a circuit board, a base plate, a positioning abutting part, and a cable clamp. The connection terminalis attached to a braided wireof a coaxial cable. The circuit boardhas a signal line connection holeand a ground line connection hole. The base platehas a cable insertion hole. The positioning abutting partis used for determining the position of the circuit boardon the base plate. The cable clampgrasps a protective outer coverof the coaxial cable, holds a core wiresuch that the core wireis exposed at a predetermined height position, and holds a connection terminalsuch that the connection terminalis exposed at a predetermined height position.

Cable connection structure used in vehicle antenna device

An antenna device includes an antenna base including a plurality of first fitting parts, the plurality of first fitting parts being arranged with mutual spaces therebetween in a periphery edge part of the antenna base, an antenna case fixed to the antenna base, an antenna part arranged in a space enclosed by the antenna base and the antenna case, and a cover member including a plurality of a second fitting parts, each of the plurality of the second fitting parts fitting with each of the plurality of the first fitting parts.

Antenna device

An antenna device includes an antenna base, an antenna case, an antenna element and an elastic member. The antenna base includes an opening and a plurality of first fitting portions located at an interval from each other at a side wall of the opening; an antenna case secured to a first surface side of the antenna base. The antenna element is located in a space enclosed by the antenna base and the antenna case. The elastic member includes a plurality of second fitting portions fittable with the plurality of first fitting portions and a rib provided on a second surface side opposite to the first surface side and protruding in a direction away from the antenna base.

Image matching on a pair of image data about images which are shot at different shooting positions is performed, and a point corresponding to the coordinates of a distance measurement point on the image shown by one image data of the pair is searched through the image shown by the other image data of the pair. The value of a parameter showing the attitude of an airplane () is corrected in such a way that the difference between the coordinates of the distance measurement point on the image shown by the other image data of the pair and the coordinates of the corresponding point which is searched for via the image matching becomes small, to estimate the attitude of the airplane ().

Navigation system and survey system

A roof-mount antenna mounting structure, that can be reliably electrically connected and fixed to a vehicle roof and easily removed, includes an antenna base, first and second threaded portions, a leg washer, a leg-receiving portion, and a protruding portion. The leg washer has a washer ring having a hole through which the first threaded portion penetrates and a plurality of leg portions extending from the washer ring and each having a claw that can abut against the roof. The leg-receiving portion is detachably provided around the first threaded portion and has an abutment edge portion. The protruding portion has, at the inside of the leg portions, an inclined surface obliquely abutting against the abutment edge portion when the first and second threaded portions are fastened with each other to apply a pressing force to spread the leg portions outward with respect to the axis of the first threaded portion.

Roof-mount antenna mounting structure

Provided is an optical imaging system which visualizes a deep portion of a scattering body. The optical imaging system generates an image of an object to be inspected by removing a signal resulting from light reflected and scattered once by a surface of the object to be inspected from the signal obtained by means of an optical system analogous to Optical Coherence Tomography, thereby extracting a signal resulting from multiply scattered light.

Optical imaging system

An endoscope apparatus includes: a light source device radiating at least one or more illumination lights having a predetermined wavelength band to a subject; a CCD picking up an image of a return light from the subject based on radiation of the illumination light from the light source device; an image processing section outputting a first image signal of a first wavelength band having a peak wavelength of spectral characteristic, between a wavelength band including a maximum value and a wavelength band at a minimum value with regard to an absorption characteristic of living tissue, after image pickup by the CCD; and an observation monitor performing image display on the basis of the first image signal.

Endoscope apparatus for outputting signals corresponding to first and second narrowband wavelength bands

A perpendicular substrate antennais fixed vertically on an upper surface of a baseplate. An antenna patternis formed on the surface of the perpendicular substrate antennaand a coil ismounted. A plate shaped antennais attached to an upper edge of the perpendicular substrate antenna. The plate shaped antennaincludes a structure in which a pair of flat partsare connected via clip partsand contact armswhich contact the surface of the perpendicular substrate antennaand latching armswhich pass through perpendicular substrate antennaand contact the opposite side surface each protrude from a lower edge of each flat part

Vehicle antenna unit

There is provided an inside observation apparatus of an endoscope and the like which can perform an inside observation for irradiating an illumination light to a minute area of a surface of an object (for example, a living tissue) having a light scattering property and detecting a back-scattered light of the illumination light, can increase a detected light amount by a simply and low cost configuration by making an area of a detection region larger than an illumination region, and can reduce a time necessary to detect an body (for example, a blood vessel) to be observed and detect a region deeper than a conventional region.

Internal observation device for object having light scattering properties, internal body observation device, endoscope for internal observation and internal observation method

Provided is a nonlinear optical device capable of alleviating, without the need for a complicated compensation mechanism, temporal broadening and the waveform distortion resulting from a group-velocity dispersion slope, to thereby irradiate an object with short optical pulses having high peak power. The nonlinear optical device includes a short optical pulse source () for generating short optical pulses and a short optical pulse delivery system () for delivering the short optical pulses generated from the short optical pulse source to an object, in which there is generated substantially no nonlinear optical effect and there is substantially no amount of group-velocity dispersion, the short optical pulse source generates short optical pulses, and the short optical pulses have a spectral width (full width at half maximum) &#x3bb;satisfying &#x3bb;&#x3c;&#x3bb;&#x3c;&#x3bb;.

Nonlinear optical device, multiphoton microscope, and endoscope

A multiphoton-excited measuring device measuring a sample with the use of a multiphoton absorption phenomenon by optical pulses having high intensity, comprising a short pulse light sourceemitting optical pulses; an irradiation optical systemirradiating a samplewith optical pulses emitted from the short pulse light source; a detectordetecting signal light generated, in association with multiphoton excitation, from the sampleby the irradiation with optical pulses; and an optical pulse compression meanscompressing a pulse width, with the use of intensity-dependent nonlinear effects of the optical fiber, so that a pulse width of optical pulses with which the sampleis to be irradiated is shorten to equal to or narrower than that of optical pulses emitted from the short pulse light sourceand so that a spectral width of optical pulses with which the sampleis to be irradiated is wider than that of optical pulses emitted from the short pulse light source, which makes it possible to stably irradiate, with the use of easy-to-use short pulse light source, a sample with optical pulses having higher peak intensity and a shorter temporal width and measure the sample easily with high accuracy without requiring sophisticated laser techniques and skills.

Growing community of inventors

Tokyo, Japan

Kenji Taira