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11.发明公开公开(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.
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12.发明申请公开(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.
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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
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.
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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
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.
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公开(公告)号：US20180269885A1
公开(公告)日：2018-09-20
申请号：US15705949
申请日：2017-09-15
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Satoshi KONDO , Akihide Sai , Masanori Furuta
CPC classification number: H03L7/0992 , H03K3/84 , H03K5/15066 , H03L7/091 , H03L2207/50 , H04B1/16
Abstract: An oscillator has an oscillator, an integer phase detector, a random number generator, an edge selector, a fractional phase detector, an offset correction arithmetic unit, and a phase error generator. The oscillator generates an oscillation signal having an oscillation frequency in accordance with a phase error signal. The integer phase detector detects an integer phase of the oscillation signal. The random number generator generates a random number. The edge selector outputs a phase difference signal indicating a phase difference between a phase of a reference signal and a phase of the oscillation signal, or indicating a phase difference acquired by offsetting the phase difference. The fractional phase detector detects a fractional phase of the oscillation signal based on the phase difference signal. The offset correction arithmetic unit computes an offset correction value in accordance with the random number. The phase error generator generates the phase error signal.
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Patent Agency Ranking
公开(公告)号：US20170214409A1
公开(公告)日：2017-07-27
申请号：US15408613
申请日：2017-01-18
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Satoshi KONDO , Akihide SAI , Masanori FURUTA
CPC classification number: H03L7/099 , H03B5/08 , H03B5/1212 , H03B5/1228 , H03B5/1265 , H03B2201/0208 , H03L7/087 , H03L7/093 , H03L2207/50 , H04B1/38
Abstract: An oscillator has an oscillator which comprises a first variable capacitor to adjust capacitance based on a first signal and a second variable capacitor to adjust capacitance, generates an oscillation signal having a frequency in accordance with the capacitance of the first variable capacitor and the second variable capacitor, an integer phase detector to detect an integer phase of the oscillation signal, a fractional phase detector to detect a fractional phase of the oscillation signal, a phase error generator to generate a fourth signal indicating a phase error of the oscillation signal, a first filter to extract the first signal in a predetermined frequency band, included in the fourth signal, and to output the first signal, and a second filter to extract the second signal in a predetermined frequency band, included in the fourth signal, and to output the second signal.
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17.发明申请公开(公告)号：US20170194972A1
公开(公告)日：2017-07-06
申请号：US15462288
申请日：2017-03-17
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Akihide SAI , Masanori FURUTA , Tetsuro ITAKURA , Satoshi KONDO , Hidenori OKUNI , Tuan thanh TA
CPC classification number: H03L7/099 , G04F10/005 , H03K5/24 , H03K5/26 , H03K21/02 , H03L7/06 , H03L7/085 , H03L7/093 , H03L7/0992 , H03L2207/50 , H04L7/033
Abstract: A time to digital converter has a counter to measure the number of cycles of a first signal, a first phase difference detector to generate a phase difference signal having a pulse width corresponding to a phase difference, a first capacitor to be charged with an electric charge, a second capacitor including capacitance N times the capacitance of the first capacitor, the N being a real number larger than 1, a comparator to compare a charge voltage of the first capacitor and a charge voltage of the second capacitor, a first charge controller to continue to charge the second capacitor until the comparator detects that the charge voltage of the second capacitor has reached the charge voltage of the first capacitor or more, and a first phase difference arithmetic unit to operate the phase difference between the first signal and the second signal.
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公开(公告)号：US20200064186A1
公开(公告)日：2020-02-27
申请号：US16292813
申请日：2019-03-05
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Tuan Thanh TA , Akihide SAI , Hidenori OKUNI , Satoshi KONDO
Abstract: According to one embodiment, an electronic apparatus includes a first avalanche photo diode, a second avalanche photo diode, a first pulse circuit, a second pulse circuit, a first waveform shaping circuit, a second waveform shaping circuit and an adder. The first pulse circuit is configured to shape a signal of the first avalanche photo diode to a first pulse. The second pulse circuit is configured to shape a signal of the second avalanche photo diode to a second pulse. The first waveform shaping circuit is configured to shape the first pulse to a third pulse having a narrower frequency bandwidth than that of the first pulse. The second waveform shaping circuit is configured to shape the second pulse to a fourth pulse having a narrower frequency bandwidth than that of the second pulse. The adder is configured to add the third pulse and the fourth pulse.
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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.
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公开(公告)号：US20180062826A1
公开(公告)日：2018-03-01
申请号：US15461809
申请日：2017-03-17
Applicant: KABUSHIKI KAISHA TOSHIBA
Inventor： Hidenori OKUNI , Akihide SAI , Masanori FURUTA , Satoshi KONDO , Tuan Thanh TA
CPC classification number: H04L7/0079 , H04B1/16 , H04L7/0331 , H04L7/0332
Abstract: A radio communication device has an analog control loop unit to generate an analog control signal, a digital control loop unit which has a frequency determined with the frequency of a reference signal and a predetermined frequency setting code signal, a voltage controlled oscillator to generate the voltage control oscillation signal, a data slicer to generate a digital signal obtained by digitally demodulating the reception signal, an automatic offset controller to generate a correction signal, a setting code adjuster to adjust the frequency setting code signal, based on the correction signal, and a direct-current level adjuster to adjust a direct-current level of the digital control signal, based on the correction signal. The data slicer compares the digital control signal adjusted by the direct-current level adjuster, with the threshold value.
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