公开(公告)号：US20210270600A1

公开(公告)日：2021-09-02

申请号：US17014757

申请日：2020-09-08

Applicant: Kabushiki Kaisha Toshiba

Inventor： Kentaro YOSHIOKA ,  Hidenori Okuni ,  Akihide Sai

IPC: G01B11/14 ,  G01B11/25 ,  B25J9/16

Abstract: A system includes a distance measurement apparatus to emit a first light in a first direction toward an object or a second light in a second direction different from the first direction toward a reflection member, and to measure a distance to the object in accordance with a first reflected light provided by a reflection of the first light on the object or a second reflected light provided by reflections of the second light, a position detector configured to detect a position of the object based on the distance; and a light direction controller to determine whether an obstacle exists on an optical path of the first direction, to control the distance measurement apparatus to emit the first light in the first direction, when the obstacle does not exist, and to control the distance measurement apparatus to emit the second light in the second direction, when the obstacle exists.

公开(公告)号：US20210223022A1

公开(公告)日：2021-07-22

申请号：US17014188

申请日：2020-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidenori OKUNI ,  Kentaro YOSHIOKA ,  Tuan Thanh TA

IPC: G01B7/14 ,  G01B11/22 ,  G01B11/03

Abstract: A method using an electronic apparatus capable of measuring a distance from the electronic apparatus, acquires information on at least one of a position or shape of an object in accordance with a reflected light reflected by both the object and a reflector. The reflector is disposed substantially parallel to one of a first plane, a second plane, and a third plane that defines a coordinate system of the electronic apparatus to measure the distance.

公开(公告)号：US20210003676A1

公开(公告)日：2021-01-07

申请号：US16818427

申请日：2020-03-13

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kentaro YOSHIOKA ,  Hidenori OKUNI ,  Tuan Thanh TA ,  Akihide SAI

IPC: G01S7/4861 ,  G01S7/48 ,  G01S17/10

Abstract: A system has detection circuitry configured to detect position information on a first point and a second point of a reflective member based on a first primary reflected electromagnetic wave generated by a reflection of a first emitted pulse on the first point and a second primary reflected electromagnetic wave generated by a reflection of a second emitted pulse on the second point, and processing circuitry configured to estimate an angle of inclination of the reflective member relative to a reference surface of the detection circuitry based on the position information on the first point and the second point.

公开(公告)号：US20190273483A1

公开(公告)日：2019-09-05

申请号：US16126031

申请日：2018-09-10

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yosuke TOYAMA ,  Kentaro YOSHIOKA ,  Kohei ONIZUKA

IPC: H03K3/03 ,  H03K5/13

Abstract: According to one embodiment, an information processing device, includes: a digital-to-pulse converter configured to output a pulse signal including a pulse with a pulse length corresponding to a digital input signal; and a bidirectional selective oscillator including a first ring oscillator and a second ring oscillator, the first ring oscillator including a plurality of delay elements connected in a ring shape in a first direction, the second ring oscillator including a plurality of delay elements connected in a ring shape in a second direction reverse to the first direction. The bidirectional selective oscillator is configured to select one of the first ring oscillator and the second ring oscillator depending on a sign of the digital input signal, oscillate the selected ring oscillator during a period when the pulse is outputted, and keep a state of oscillation operation when the pulse stops being outputted.

公开(公告)号：US20190068216A1

公开(公告)日：2019-02-28

申请号：US15920611

申请日：2018-03-14

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihide SAI ,  Satoshi KONDO ,  Kentaro YOSHIOKA ,  Tetsuro ITAKURA

IPC: H03M3/00

CPC classification number: H03M3/458 ,  G04F10/00 ,  G04F10/005 ,  H03M1/60

Abstract: An analog-to-digital converter has a switched capacitor comprising a capacitor to perform charging and discharging by switching a switch, the switched capacitor varying a charge amount of the capacitor in accordance with a frequency of an oscillation signal in accordance with a differential signal between an input signal and a feedback signal, capacitance of the capacitor, and a predetermined bias voltage, a feedback signal generator to generate the feedback signal based on an output signal of the switched capacitor, and a digital converter to generate a digital signal by digital conversion of the input signal based on the oscillation signal.

公开(公告)号：US20180083647A1

公开(公告)日：2018-03-22

申请号：US15714772

申请日：2017-09-25

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kentaro YOSHIOKA ,  Masanori FURUTA ,  Hiroshi KUBOTA

IPC: H03M1/46

CPC classification number: H03M1/462 ,  H03M1/0656 ,  H03M1/466 ,  H03M1/468 ,  H03M1/804

Abstract: A successive approximation register (SAR) analog-to-digital converter includes a first capacitance digital-to-analog converter (CDAC), a first comparator configured to compare a voltage of an output signal from the first CDAC with a reference voltage, a first SAR circuit configured to control the first CDAC based on an output of the first comparator, a second CDAC to which the output signal from the first CDAC is input, a second comparator configured to compare a voltage of an output signal from the second CDAC with a reference voltage, a second SAR circuit configured to control the second CDAC based on an output of the second comparator and generate a digital signal representing a residual voltage of the output signal of the first CDAC, and a feedback circuit configured to delay the digital signal, generate a residual signal from the delayed digital signal, and output the residual signal to the first CDAC.

公开(公告)号：US20170242451A1

公开(公告)日：2017-08-24

申请号：US15388090

申请日：2016-12-22

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kentaro YOSHIOKA

IPC: G05F3/26 ,  H03M1/12 ,  H03L7/08 ,  H03K5/151 ,  H03K3/011

CPC classification number: G05F3/262 ,  H03K3/011 ,  H03K5/151 ,  H03K2005/00019 ,  H03L7/08 ,  H03M1/12

Abstract: A reference current generating circuit has a variable current supply to output a reference current, delay circuitry to generate a reference clock by delaying a clock by a reference delay amount and a delay clock by delaying the clock depending on a current value of the reference current, a phase comparator to compare a phase of the reference clock with a phase of the delay clock to output a comparison result, and control circuitry to control the current value of the reference current based on the compared result.

公开(公告)号：US20170126188A1

公开(公告)日：2017-05-04

申请号：US15268076

申请日：2016-09-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kentaro YOSHIOKA ,  Tetsuro ITAKURA ,  Masanori FURUTA

IPC: H03F3/45 ,  H03M1/12 ,  H03M1/38 ,  H03K3/03

CPC classification number: H03F3/45475 ,  H03F2200/294 ,  H03F2200/78 ,  H03F2203/45512 ,  H03F2203/45551 ,  H03M1/66 ,  H04B1/40

Abstract: An amplifier circuit has a sample-and-hold circuit to sample and hold an input signal, an amplifier which comprises an input terminal inputted with the input signal held by the sample-and-hold circuit and an output terminal outputting an amplification signal obtained by amplifying the input signal inputted, a feedback capacitor to be connected between the input terminal and output terminal of the amplifier, a successive approximation circuit to perform successive approximation operation to correct the amplification signal based on a voltage of the input terminal of the amplifier, the successive approximation operation being performed a predetermined number of cycles, and a control circuit to control the successive approximation circuit based on an amplification error included in the amplification signal.

公开(公告)号：US20210003678A1

公开(公告)日：2021-01-07

申请号：US16811120

申请日：2020-03-06

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidenori OKUNI ,  Tuan Thanh TA ,  Satoshi KONDO ,  Toshiki SUGIMOTO ,  Kentaro YOSHIOKA ,  Akihide SAI

IPC: G01S7/4863 ,  G01S7/4865 ,  G01S17/10

Abstract: An electronic apparatus has a light detector configured to detect light by converting a reception photon into a signal and incapable of converting an additional photon into the signal during a recovery period after a reception of photons, a light projector configured to project light having a pulse width different from any of n times the recovery period (n is an integer of 1 or more), and a processor configured to measure a distance to a target object by using a time difference between a timing at which light is projected by the light projector and a timing at which light comprising a reflected wave is detected by the light detector, wherein the reflected wave is obtained by reflection of the light projected by the light projector onto the target object.

公开(公告)号：US20190089365A1

公开(公告)日：2019-03-21

申请号：US15919912

申请日：2018-03-13

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Kentaro YOSHIOKA ,  Tetsuro ITAKURA

IPC: H03M1/00 ,  H03F3/45 ,  H03F3/21 ,  H03F3/19 ,  H03F1/02 ,  H04W52/02

CPC classification number: H03M1/002 ,  H03F1/0205 ,  H03F1/0277 ,  H03F3/005 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/45179 ,  H03F3/45183 ,  H03F3/45475 ,  H03F3/45982 ,  H03F2200/375 ,  H03F2200/451 ,  H03F2203/45022 ,  H03F2203/45026 ,  H03F2203/45512 ,  H03F2203/45702 ,  H03M1/164 ,  H03M1/804 ,  H04W52/0209

Abstract: Amplifier circuitry has sampling circuitry which samples an input voltage, a quantizer which quantizes an output voltage of the sampling circuitry and outputs an output code, a differential amplifier which amplifies a differential voltage between the output voltage of the sampling circuitry and a reference voltage and performs offset adjustment according to the output code of the quantizer, and a first capacitor which is connected between an output node of the differential amplifier and an output node of the sampling circuitry.