公开(公告)号：US20240186970A1

公开(公告)日：2024-06-06

申请号：US18460021

申请日：2023-09-01

Applicant: Kabushiki Kaisha Toshiba

Inventor： Tetsuro ITAKURA ,  Tuan Thanh TA ,  Toshiki SUGIMOTO

IPC: H03F3/45 ,  H03F1/08

CPC classification number: H03F3/45475 ,  H03F1/086 ,  H03F3/45273

Abstract: An amplifier circuit includes a plurality of gain stages that change a gain in each stage and include a first gain stage and a final gain stage, an output terminal that outputs a signal amplified by the plurality of gain stages, a negative input terminal connected to an input node of the first gain stage, a feedback circuit connected between an output node of the final gain stage and the negative input terminal, a first resistor connected between the output node of the final gain stage and the output terminal, an active load of the first gain stage including a first transistor, a second resistor connected to a gate or a base of the first transistor, and a capacitor connected between the gate or the base of the first transistor and the output node of the final gain stage.

公开(公告)号：US20230296773A1

公开(公告)日：2023-09-21

申请号：US17930727

申请日：2022-09-09

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: G01S17/42 ,  G01S7/51 ,  G01S17/894 ,  G01S7/486 ,  G01S7/4863

CPC classification number: G01S17/42 ,  G01S7/51 ,  G01S17/894 ,  G01S7/4868 ,  G01S7/4863

Abstract: A distance measuring device has a plurality of light receiving elements each of which receives a reflected optical signal reflected by an object, and an image processor that generates a distance image in accordance with distances to the object, based on signal intensities and light reception timings of the reflected optical signal received by the plurality of light receiving elements, wherein the image processor detects a direction of the object, based on at least either the signal intensities of the reflected optical signal received by the light receiving elements or the distances to the object measured based on the reflected optical signal, and divides at least one or some of pixels included in the distance image, based on the direction of the detected object.

公开(公告)号：US20230073292A1

公开(公告)日：2023-03-09

申请号：US17653537

申请日：2022-03-04

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Toshiki SUGIMOTO

IPC: G01S7/489 ,  H03K19/0185 ,  H03F3/45 ,  H04N5/378

Abstract: Provided is a photodetector including: a photodetection element; a reset circuit that sets one end of the photodetection element to an initialization voltage after the photodetection element detects light, and that includes a variable current source capable of varying a current to be supplied to the one end of the photodetection element; and a control circuit that stepwise or continuously increases a current to be supplied to the one end of the photodetection element by using the variable current source until the one end of the photodetection element is set to the initialization voltage after the photodetection element detects light.

公开(公告)号：US20240233409A1

公开(公告)日：2024-07-11

申请号：US18465100

申请日：2023-09-11

Applicant: Kabushiki Kaisha Toshiba

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

IPC: G06V20/64 ,  G06T5/00 ,  G06T5/20 ,  G06T7/215 ,  G06T7/521 ,  G06T11/00 ,  G06V10/762 ,  G06V10/764

CPC classification number: G06V20/64 ,  G06T5/002 ,  G06T5/008 ,  G06T5/20 ,  G06T7/215 ,  G06T7/521 ,  G06T11/00 ,  G06V10/762 ,  G06V10/764 ,  G01S17/894 ,  G06T2207/10028

Abstract: An image processing apparatus comprises processing circuitry, and the processing circuitry is configured to detect light intensity data including at least one of a reflected light intensity of light reflected on an object or an ambient light intensity based on a reception signal corresponding to a reflected light from the object, generate a two-dimensional image based on the light intensity data, recognize the object in the two-dimensional image, generate three-dimensional data by detecting a distance to the object based on the reception signal, and classify the three-dimensional data into one or more clusters based on the recognized object and the distance to the detected object.

公开(公告)号：US20220252700A1

公开(公告)日：2022-08-11

申请号：US17468473

申请日：2021-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Toshiki SUGIMOTO

IPC: G01S7/4863 ,  H01L27/144 ,  H03K17/687 ,  G01S17/10

Abstract: A light detection device includes a light receiving element that photoelectrically converts incident light, and a plurality of transistors that controls a bias voltage applied to the light receiving element and controlling reading of an output signal of the light receiving element, wherein the plurality of transistors comprise at least one or more transistors having a first withstand voltage and one or more transistors having a second withstand voltage higher than the first withstand voltage.

公开(公告)号：US20220057492A1

公开(公告)日：2022-02-24

申请号：US17187524

申请日：2021-02-26

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Toshiki SUGIMOTO

IPC: G01S7/4863 ,  G01S7/481 ,  G01S7/487

Abstract: A light-receiving apparatus has M (M is greater than 2) light-receiving elements corresponding to one pixel, and controller circuitry configured to control a bias voltage of the M light-receiving elements in accordance with a condition that the number of light-receiving elements of the M light-receiving elements simultaneously detecting light within a first period is less than N (N is an integer equal to or greater than 2 and less than M).

公开(公告)号：US20220190812A1

公开(公告)日：2022-06-16

申请号：US17468431

申请日：2021-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yosuke TOYAMA ,  Tuan Thanh TA ,  Satoshi KONDO ,  Akihide SAI ,  Toshiki SUGIMOTO ,  Kentaro YOSHIOKA

IPC: H03K3/03 ,  G04F10/00

Abstract: An oscillation circuit has a first oscillator having output nodes of n stages, where n is an integer of 3 or more, a second oscillator having output nodes of n stages, and a third oscillator having output nodes of n stages. An output node at an a-th stage of the first oscillator and an output node at an a-th stage of the second oscillator are connected with each other, where a is an integer of 1 or more and n or less and an output node at a b-th stage of the second oscillator and an output node at a b-th stage of the third oscillator are connected with each other, where b is an integer of 1 or more and n or less different from a.

公开(公告)号：US20220182067A1

公开(公告)日：2022-06-09

申请号：US17468493

申请日：2021-09-07

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Toshiki SUGIMOTO ,  Kentaro YOSHIOKA ,  Akihide SAI ,  Yosuke TOYAMA

IPC: H03M1/12

Abstract: An analog-to-digital converter has a first digital signal generator that generates a first digital signal based on whether or not a sampling signal of an input signal is equal to or lower than a signal corresponding to a second reference signal higher than a first reference signal, a first slope generator to generate a first slope signal that changes with time from the sampled and held signal equal to or lower than the first reference signal, a second slope generator to generate a second slope signal that changes with time from the sampled and held signal to a signal level equal to or lower than the second reference signal, and a second digital signal generator that generates a second digital signal based on a time at which the first slope signal matches the first reference signal or a time at which the second slope signal matches the second reference signal.

公开(公告)号：US20210072359A1

公开(公告)日：2021-03-11

申请号：US16812488

申请日：2020-03-09

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Tuan Thanh TA ,  Akihide SAI ,  Hidenori OKUNI ,  Toshiki SUGIMOTO

IPC: G01S7/4863 ,  G01S7/481 ,  G01S17/10

Abstract: A photo detection apparatus has an array of light detectors that can be switched to an ON state to enable output of a signal based on reception light or an OFF state to disable output of the signal based on reception light, and control circuitry configured to set one or more first light detectors inside a region specified according to overlapping of a region irradiated with light from a first direction and a region capable of detecting light to the ON state among the array of light detectors, when the light from the first direction is received by the array and set second light detectors outside of the specified region to the OFF state among the array of light detectors, when light from a first direction is received by the array.

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.