公开(公告)号：US20180259627A1

公开(公告)日：2018-09-13

申请号：US15691435

申请日：2017-08-30

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yasuhiro SHINOZUKA ,  Akihide SAI

IPC: G01S7/486 ,  G01S17/89 ,  G01S17/10

Abstract: According to an embodiment, a distance measuring apparatus includes an irradiator that emits an irradiation wave to a measuring target, a first detector that directly detects the irradiation wave, a second detector that detects a reflection wave, a simulation signal generator that generates a simulation signal, a first meter that measures a first time and an emission time of the irradiation wave, a second meter that measures a second time and an incidence time of the reflection wave, a first subtractor that subtracts the emission time from the incidence time to obtain a measurement time period, and that subtracts the first time from the second time to obtain an error time period and a second subtractor that subtracts the error time period from the measurement time period to obtain an offset measurement time period.

公开(公告)号：US20160173137A1

公开(公告)日：2016-06-16

申请号：US14971086

申请日：2015-12-16

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Masanori FURUTA

IPC: H04B1/00 ,  H04L25/08 ,  H04B1/16 ,  H03B9/14 ,  H03F3/19

CPC classification number: H04B1/0007 ,  H03B5/12 ,  H03B9/141 ,  H03B2201/0208 ,  H03B2201/0258 ,  H03F3/19 ,  H03F2200/294 ,  H03L7/0991 ,  H03L7/22 ,  H03L2207/06 ,  H04B1/16

Abstract: According to an embodiment, a receiver includes a voltage controlled oscillator, a frequency-to--digital converter and an input sensitivity controller. In the voltage controlled oscillator, input sensitivity relative to a baseband signal is controlled based on an input sensitivity control signal. The voltage controlled oscillator oscillates at a frequency controlled by a voltage of the baseband signal to generate an oscillation signal. . The frequency--to-digital converter performs frequency-to-digital conversion of the oscillation signal to generate a digital signal. The input sensitivity controller generates the input sensitivity control signal based on the digital signal.

Abstract translation: 根据实施例，接收机包括压控振荡器，频数转换器和输入灵敏度控制器。 在压控振荡器中，基于输入灵敏度控制信号来控制相对于基带信号的输入灵敏度。 压控振荡器以由基带信号的电压控制的频率振荡以产生振荡信号。 。 频数转换器执行振荡信号的频数转换以产生数字信号。 输入灵敏度控制器根据数字信号产生输入灵敏度控制信号。

公开(公告)号：US20150130649A1

公开(公告)日：2015-05-14

申请号：US14339266

申请日：2014-07-23

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tetsuro ITAKURA ,  Masanori FURUTA ,  Akihide SAI ,  Junya MATSUNO

IPC: H03M1/06 ,  H03M1/60

CPC classification number: H03M1/0626 ,  H03M1/0607 ,  H03M1/1295 ,  H03M1/60

Abstract: In one embodiment, an AD converter includes a first (second) oscillation circuit, a first (second) counter, a first (second) arithmetic circuit, a first (second) subtracting circuit, an adder circuit, and a feedback circuit. The first oscillation circuit generates a first pulse signal having a frequency corresponding to a level of a first analog signal. The first counter counts the first pulse signal. The first arithmetic circuit generates a first signal corresponding to a change amount of a count value. The first subtracting circuit outputs a digital signal corresponding to a difference between the signals generated by the first and second arithmetic circuits. The adder circuit generates a sum signal of the signals generated by the first and second arithmetic circuits. The second subtracting circuit generates a difference signal between the sum signal and a reference signal. The feedback circuit inputs the difference signal to the first oscillation circuit.

Abstract translation: 在一个实施例中，AD转换器包括第一（第二）振荡电路，第一（第二）计数器，第一（第二）运算电路，第一（第二）减法电路，加法器电路和反馈电路。 第一振荡电路产生具有对应于第一模拟信号电平的频率的第一脉冲信号。 第一个计数器对第一个脉冲信号进行计数。 第一算术电路产生对应于计数值的变化量的第一信号。 第一减法电路输出对应于由第一和第二运算电路产生的信号之间的差值的数字信号。 加法器电路产生由第一和第二运算电路产生的信号的和信号。 第二减法电路在和信号和参考信号之间产生差分信号。 反馈电路将差分信号输入到第一振荡电路。

公开(公告)号：US20250093478A1

公开(公告)日：2025-03-20

申请号：US18795441

申请日：2024-08-06

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihide SAI ,  Hisaaki KATAGIRI ,  Satoshi KONDO

IPC: G01S7/487 ,  G01S7/481 ,  G01S7/4865 ,  G01S17/894

Abstract: An information processing apparatus has processing circuitry configured to generate a histogram indicating a relationship between a light reception time and a light reception frequency based on a plurality of received signals including reflected light from an object, detect a peak of the light reception frequency of the histogram, and judge whether there is a light propagation interference factor including at least one of fog, mist, haze, rain, and snow based on the histogram and the light reception time of the peak, wherein it is judged whether there is the light propagation interference factor based on the light reception time of the peak and a degree of change in the light reception frequency of the histogram between before and after the light reception time of the peak.

公开(公告)号：US20240192328A1

公开(公告)日：2024-06-13

申请号：US18465073

申请日：2023-09-11

Applicant: Kabushiki Kaisha Toshiba

Inventor： Toshiki SUGIMOTO ,  Tuan Thanh TA ,  Akihide SAI

IPC: G01S7/481 ,  G01R19/165 ,  G01S17/08

CPC classification number: G01S7/4816 ,  G01R19/16576 ,  G01S17/08

Abstract: A photodetection device has a photodetection element, a reset circuit that sets one end of the photodetection element to a predetermined initialization voltage, a firing detection circuit that detects firing of the photodetection element by comparing a voltage at the one end of the photodetection element or a current flowing through the one end with a threshold, a monitor circuit that monitors an output signal of the firing detection circuit, and a threshold control circuit that controls the threshold based on a monitor output of the monitor circuit.

公开(公告)号：US20230281771A1

公开(公告)日：2023-09-07

申请号：US17930599

申请日：2022-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Toshiki SUGIMOTO ,  Tuan Thanh TA ,  Akihide SAI ,  Hisaaki KATAGIRI ,  Yutaka OTA ,  Satoshi KONDO

IPC: G06T5/50 ,  G01S17/894 ,  G01S7/481 ,  G01S7/4865 ,  G06T5/00 ,  G06T7/246 ,  G06V10/40

CPC classification number: G06T5/50 ,  G01S17/894 ,  G01S7/4817 ,  G01S7/4865 ,  G06T5/003 ,  G06T7/248 ,  G06V10/40 ,  G06T2207/10028 ,  G06T2207/20212 ,  H04N5/2256

Abstract: An image processing apparatus has a light source that emits a light signal at a predetermined time interval, a scanner capable of changing at least one of a scanning range or a scanning timing of the light signal for each of frames, a light receiver that receives a reflected light signal reflected on an object by irradiating the object with the light signal, processing circuitry that generates a distance image for each of the frames based on the reflected light signal received by the light receiver, and synthesizes the distance images of a plurality of the frames to generate a high-resolution distance image.

公开(公告)号：US20230146289A1

公开(公告)日：2023-05-11

申请号：US17930556

申请日：2022-09-08

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Yosuke TOYAMA

IPC: G01S7/481 ,  G01S17/10 ,  G01S7/4861 ,  G01S17/931 ,  G01S7/497

CPC classification number: G01S7/4815 ,  G01S17/10 ,  G01S7/4861 ,  G01S7/4817 ,  G01S17/931 ,  G01S7/4972

Abstract: A light projecting apparatus has a plurality of light projectors, each being capable of switching an emission direction and an emission timing of an optical signal, and a plurality of first controllers, each controlling an emission direction and an emission timing of an optical signal emitted from a corresponding light projector among the plurality of light projectors.

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：US20200300988A1

公开(公告)日：2020-09-24

申请号：US16564840

申请日：2019-09-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Hidenori OKUNI ,  Tuan Thanh TA ,  Satoshi KONDO ,  Akihide SAI

IPC: G01S7/486 ,  G01S7/48 ,  G01S17/10

Abstract: An electronic apparatus capable of determining a distance to an object based on reflected light provided by a reflection of a pulsed light on the object, includes input terminal configured to receive a signal of intensity of reception light. Processing circuitry determines a measurement range capable of specifying a peak of the reception light based on the intensity of the reception light, detects the reflected light by specifying the peak of the reception light within the measurement range, determines, based on the measurement range, a duration from when the pulsed light is emitted until when the reflected light is received, and determines a distance from the electronic apparatus to the object according to the duration.

公开(公告)号：US20200300975A1

公开(公告)日：2020-09-24

申请号：US16564406

申请日：2019-09-09

Applicant: Kabushiki Kaisha Toshiba

Inventor： Hidenori OKUNI ,  Tuan Thanh TA ,  Satoshi KONDO ,  Akihide SAI

IPC: G01S7/48 ,  G01S7/486 ,  G01S17/10

Abstract: An electronic apparatus capable of determining a distance to an object based on reflected light provided by a reflection of pulsed light on the object has detectors configured to detect reception light to measure times from an emission of the pulsed light to detections of the reception light; and processing circuitry configured to determine a duration in which the reflected light is received based on the times, determine, based on one of the times in the duration, a reception timing of the reflected light included in the reception light, and determine the distance from the electronic apparatus to the object according to the reception timing of the reflected light.