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：US20200158872A1

公开(公告)日：2020-05-21

申请号：US16562817

申请日：2019-09-06

Applicant: Kabushiki Kaisha Toshiba ,  Toshiba Electronic Devices & Storage Corporation

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

IPC: G01S17/10 ,  H03L7/16 ,  H03L7/081 ,  H03L7/099

Abstract: A semiconductor circuitry includes an oscillator configured to output an oscillation signal whose frequency depends on a first input signal, a counter configured to count a number of cycles of the oscillation signal, first circuitry configured to output a first digital signal based on a first number of cycles counted by the counter within one of a clock cycle of a clock signal, wherein the first input signal is digitally converted into the first digital signal, and a second circuitry configured to output a second digital signal based on a second number of cycles counted by the counter in a period from a reference timing of the clock signal to an input timing of a second input signal within the one of the clock cycle of the clock signal, wherein the period is digitally converted into the second digital signal.

公开(公告)号：US20200064450A1

公开(公告)日：2020-02-27

申请号：US16289490

申请日：2019-02-28

Applicant: KABUSHIKI KAISHA TOSHIBA

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

IPC: G01S7/486 ,  H01L31/107 ,  G01S17/10

Abstract: According to one embodiment, an electronic apparatus includes a light source, a detector, an equalizer and a processing circuitry. The light source is configured to emit a pulse having a first output value and a first frequency response. The detector is configured to detect a reflected wave of the pulse and convert the reflected wave to a first electric signal. The reflected wave of the pulse is received after the pulse is reflected by an object. The equalizer is configured to equalize the first electric signal using tap coefficients to generate a second electric signal. The tap coefficients are based on at least either one of the first output value and the first frequency response. The processing circuitry is configured to estimate a distance to the object based on the second electric signal.

公开(公告)号：US20170373709A1

公开(公告)日：2017-12-28

申请号：US15462232

申请日：2017-03-17

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Satoshi KONDO ,  Akihide SAI ,  Tuan Thanh TA ,  Hidenori OKUNI ,  Masanori FURUTA ,  Tetsuro ITAKURA

IPC: H04B1/16 ,  H03L7/099 ,  H03G3/30 ,  G04F10/00 ,  H03L7/089 ,  H03L7/091 ,  H03L7/095

CPC classification number: H04B1/16 ,  G04F10/005 ,  H03G3/3042 ,  H03G3/3052 ,  H03L7/085 ,  H03L7/0891 ,  H03L7/091 ,  H03L7/095 ,  H03L7/0991 ,  H03L2207/50

Abstract: A time to digital converter has a counter, a first phase difference detector, a first capacitor, a second capacitor having capacitance N times a capacitance of the first capacitor, a comparator to compare a charge voltage of the first capacitor with a charge voltage of the second capacitor, a first charge controller, a first phase difference arithmetic unit, a second phase difference detector, a second charge controller, a second phase difference arithmetic unit to operate the phase difference between the first signal and the second signal, and a third phase difference arithmetic unit to detect a fractional phase difference between the first signal and the second signal. The first phase difference arithmetic unit operates the phase difference between the first signal and the second signal, based on a reference phase, when the counter suspends a measurement operation.

公开(公告)号：US20240146228A1

公开(公告)日：2024-05-02

申请号：US18459540

申请日：2023-09-01

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Yosuke TOYAMA ,  Satoshi KONDO ,  Tuan Thanh TA

IPC: H02P27/06 ,  H02P21/14 ,  H02P21/22

CPC classification number: H02P27/06 ,  H02P21/14 ,  H02P21/22

Abstract: A motor control circuit has an n-phase inverter that controls a motor of n-phases (n is an integer of three or more), a current detection circuit that detects a motor current flowing through the motor of the n-phases, and a current control circuit that controls the inverter for each of a control cycle based on a command current and the motor current detected by the current detection circuit. The inverter includes transistor pairs of the n-phases provided for each phase of the motor, and the current control circuit stops, for each of the control cycle, a switching operation in at least one transistor pair of the transistor pairs of the n-phases.

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：US20180267481A1

公开(公告)日：2018-09-20

申请号：US15705699

申请日：2017-09-15

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Satoshi KONDO ,  Akihide SAI

IPC: G04F10/00 ,  G01S13/10 ,  H03L7/099 ,  H03L7/091

Abstract: Time measuring circuitry has a ring oscillator, a time-to-digital converter, a time measurer and a phase randomizer. The ring oscillator has a plurality of delay circuitries connected in a ring shape, the ring oscillator adjusting delay times of the plurality of delay circuitries based on an oscillation control signal to generate an oscillation signal. The time-to-digital converter quantizes a phase of the oscillation signal at a transition timing of a reference signal. The phase synchronizing circuitry to generate the oscillation control signal based on an output signal of the time-to-digital converter so that a phase of the oscillation signal coincides with a phase of the reference signal. The time measurer to measure a time interval based on the output signal of the time-to-digital converter. The phase randomizer to randomly shift the phase of the oscillation signal to be locked by the phase synchronizing circuitry.

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：US20180278407A1

公开(公告)日：2018-09-27

申请号：US15706963

申请日：2017-09-18

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Akihide SAI ,  Hidenori OKUNI ,  Masanori FURUTA ,  Satoshi KONDO

IPC: H04L7/00 ,  H04L7/033 ,  H04L7/04

CPC classification number: H04L7/0091 ,  G01N29/00 ,  G01N29/14 ,  G01N29/2481 ,  H03L7/099 ,  H03L7/16 ,  H03L2207/50 ,  H04L7/0087 ,  H04L7/0331 ,  H04L7/042 ,  H04L27/00

Abstract: A wireless communication apparatus has a transmitter, a signal processor, and ADPLL circuitry. The transmitter to modulate transmission data using a local oscillation signal to generate a wireless signal to be transmitted from an antenna. The signal processor to generate the transmission data and to supply the generated transmission data to the transmitter. The ADPLL (All Digital Phase-Locked Loop) circuitry to generate the local oscillation signal by ADPLL processing and to supply digital information correlated with an input sensing signal to the signal processor.

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.