Kabushiki Kaisha Toshiba

Toshiba Electronic Devices & Storage Corporation

Toshiba Lighting & Technology Corporation

Panasonic Corporation

Murata Manufacturing Co., Ltd.

Fuji Xerox Co., Ltd.

Panasonic Electric Works Co., Ltd.

Kabuseiiki Kaisha Toshiba

Hiroshi Kubota

Nobu Matsumoto

Naoko Iwai

Tomonori Fukushima

Saki Sato

Hiroyuki Suzuki

Shinya Hakuta

Masahiko Kamata

Hiroshi Terasaka

Mari Nakamura

Katsuyuki Kobayashi

Masanori Furuta

Kenji Kuroishi

Takeshi Saito

Toshiya Tanaka

Masahide Yatsu

Hitoshi Kawano

Masatoshi Hirono

Takeshi Hisayasu

Shinichiro Matsumoto

Takuro Hiramatsu

Toshiyuki Hiraoka

Kentaro Yoshioka

Hiroki Nakagawa

Masatoshi Kumagai

Katsunobu Hamamoto

Yutaka Ota

Hiroyuki Sako

Kunihiko Ikada

Shinji Nakata

Hajime Osaki

Tsutomu Araki

Mineharu Uchiyama

Katsusuke Uchino

Go Kato

Mitsuhiro Matsuda

Tomokazu Usami

Kazuhiko Morizawa

Yutaka Oota

Ryota Irie

Yoshikazu Ito

Yasuhiro Shida

Makiko Oikawa

Shinichi Ohtsuka

A distance measuring device according to one embodiment includes a light emitter, a light receiver, and a measurement section. The measurement section is configured to: generate a weighted value based on a degree of similarity of values of first and second portions, or a degree of similarity of values of first and second bottom portions; generate a third digital signal obtained by adding the second digital signal to the first digital signal based on the weighted value; and calculate a distance value from an object based on a position of a third portion.

Distance measuring device

According to one embodiment, a light detector includes pixels arranged in first and second directions in a pixel area, and a control section. The control section is configured to turn on a first subset of the pixels in a first partial area based on first coordinate information, and to turn on a second subset of the pixels in a second partial area based on second coordinate information different from the first coordinate information. A first tilt of the first partial pixel area differs from a second tilt of the second partial pixel area.

Light detector and distance measurement device

A distance measuring device is a distance measuring device that performs processing on a time-series luminance signal generated on the basis of a sensor output corresponding to reflected light of laser light. The distance measuring device includes a storage circuit and a determination circuit. The storage circuit stores a first time-series luminance signal based on reflected light from a first measurement target of laser light and a second time-series luminance signal based on reflected light from a second measurement target of laser light. The determination circuit determines, on the basis of correlation between the first time-series luminance signal and the second time-series luminance signal, whether the first measurement target and the second measurement target are the same measurement target.

Distance measuring device, distance measuring method, and speed measuring device

A distance measuring device according to this embodiment includes a plurality of sensors, a switching circuit, and a distance measurement circuit. The plurality of sensors that convert reflected light of laser light received via a light-receiving optical system into an electric signal. The plurality of sensors respectively have different light receiving positions with respect to the light-receiving optical system. The switching circuit switches and outputs an output signal output from a first sensor used for measurement and an output signal output from a second sensor used for measurement after the measurement by the first sensor among the plurality of sensors. The distance measurement circuit measures the distance to a measurement target object on the basis of a time difference between light emission timing of the laser light and timing of a peak position of a time-series luminance signal based on the output signal of the switching circuit.

Distance measuring device and distance measuring method

A sensor includes an avalanche photodiode (APD), a first resistor, a second resistor, and a rectification element. The first resistor is connected between a current output terminal of the APD and a first output terminal. The second resistor and the rectification element are connected in series between the current output terminal and a second output terminal. The rectification element is connected between the second resistor and the second output terminal.

Sensor and distance measuring device

According to one embodiment, a light detector includes: a first set of light detection elements and a second set of light detection elements each being disposed in a first region on a substrate; and a first selection and integration circuit and a second selection and integration circuit each being disposed in a second region outside of the first region on the substrate. The first selection and integration circuit is configured to select a first subset of light detection elements in the first set, and integrate outputs from the light detection elements in the first subset. The second selection and integration circuit is configured to select a second subset of light detection elements in the second set, and integrate outputs from the light detection elements in the second subset.

Light detector and distance measuring device comprising plural sets of light detection elements with plural selection circuits

A laminate structure includes a substrate; a first layer provided on a first surface of the substrate; and a second layer provided on a second surface of the substrate. The first layer includes a first end portion and a second end portion along a width direction of the substrate, the second layer includes a third end portion and a fourth end portion along the width direction of the substrate, the first end portion is opposite to the third end portion, the second end portion is opposite to the fourth end portion. An end surface of the third end portion includes an inclined surface or a stair shape or a combined shape of the inclined surface and the stair shape.

Laminate structure, production method thereof, and roll press device

According to an embodiment, a distance measuring device is a signal processing device that performs processing on time-series luminance signals of each of frames acquired on the basis of reflected lights of laser lights irradiated in order in a plurality of predetermined directions for each of the frames. The distance measuring device includes a storage circuit and a selection circuit. The storage circuit stores information concerning a distance value obtained on the basis of a time-series luminance signal of a preceding frame. The selection circuit selects a peak based on the distance value as a candidate of the distance value out of peaks in the time-series luminance signal in a present frame.

Distance measuring device, distance measuring method, and signal processing method

A light receiving device includes a light receiver including pixels and a light receiving area. The pixels are arranged in an array in a first direction and in a second direction intersecting with the first direction and each of the pixels has one light receiving element or more. The light receiving area has continuous pixels out of the pixels, outputs signals based on intensities of light received in the continuous pixels, and is changed in position in the light receiver according to a signal indicating a position in the first direction and a position in the second direction.

Light receiving device and range finding device including a switch circuit which re-arranges the order of signals output from a light receiver

A distance measurement processing device according to an embodiment includes an information acquisition circuit and a reliability-degree generation circuit. The information acquisition circuit acquires a two-dimensional distance image having a measured distance as a pixel value and signal information concerning a signal value corresponding to the measured distance image. The reliability-degree generation circuit sets, for each of the pixels of the two-dimensional distance image, each of the pixels as a center pixel and generates a reliability degree based on information concerning the pixels having distance values equal to or smaller than a predetermined value from a distance value of the center pixel among the pixels contiguous within a predetermined range from the center pixel and a signal value corresponding to the center pixel.

Distance measurement processing device, image processing method, and distance measuring system comprising a reliability-degree generation circuit

A distance measuring device according to an embodiment includes a time acquisition circuit and a distance measurement circuit. The time acquisition circuit acquires a rising time in which a measurement signal obtained by converting reflected light of a laser beam from an object into a signal reaches a first threshold and a falling time in which the measurement signal reaches a second threshold after reaching the first threshold. The distance measurement circuit measures the distance to a target object on the basis of a time difference between timing based on the rising time and the falling time and irradiation timing of the laser beam.

Light detector and distance measuring device comprising plural seets of light detection elements with plural selection circuits

According to one embodiment, a sensor includes a first avalanche photodiode, a first quenching element, a second avalanche photodiode, and a second quenching element. The first quenching element is connected to a current output terminal of the first avalanche photodiode at one end and is connected to an output terminal at another end. The second avalanche photodiode is arranged adjacent to the first avalanche photodiode. The second quenching element is connected to a current output terminal of the second avalanche photodiode at one end and is connected to a specific electric potential at another end.

Sensor and distance measuring device comprising first and second quenching devices respectively connected to current output terminals of fist and second avalanche photodiodes

According to one embodiment, a distance measurement apparatus includes a light emitter that intermittently emits a light beam, and a meter that measures a distance to an object from a length of time from an emission of the light beam from the light emitter to a return of reflected light by the object. The light emitter emits the light beam in a certain cycle with delay corresponding to randomly set offset time. The meter generates an integrated detection signal by shifting a plurality of detection signals of the light beam emitted in the certain cycle by the respective offset times and time-divisionally integrating the detection signals, and determines based on the integrated detection signal whether or not the light indicated by the detection signals is reflected light by the object, emitted from the light emitter.

Distance measurement apparatus

A distance measuring device according to an embodiment includes a light source, an irradiation optical system, a light-receiving optical system, a sensor, an extractor, an adjuster, a signal generator, and a distance measurer. The light source intermittently emits laser light. The irradiation optical system reflects the laser light. The light-receiving optical system receives reflected light of the laser light via the mirror. The sensor includes a plurality of light receiving elements. The extractor extracts light receiving elements used for measurement of a distance to the measurement target object. The adjuster adjusts, according to an amplification factor corresponding to the light receiving elements extracted by the extractor, signal values of the electric signals of the light receiving elements. The signal generator generates time-series signals for measurement on the basis of the electric signals adjusted by the adjuster. The distance measurer measures the distance to the measurement target object.

Growing community of inventors

Yokosuka, Japan

Hiroshi Kubota