Patents by Inventor Noriyuki Ozaki
Noriyuki Ozaki has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210239840Abstract: A LIDAR device for measuring a distance to an object in a scanning zone includes a light source, a light receiver, a rotatable mirror, a motor, an angle sensor, and a controller. The rotatable mirror is configured to reflect the light beam emitted from the light source toward the scanning zone. The motor is configured to rotate the mirror back and forth between a first position and a second position. The angle sensor is configured to detect a rotation angle of the mirror and to output a detection signal indicative of the rotation angle of the mirror at a plurality of predetermined angle intervals during each rotation cycle between the first position and the second position of the mirror. The controller is configured to output a control signal to the light source to emit a light beam upon receiving the detection signal from the angle sensor.Type: ApplicationFiled: January 31, 2020Publication date: August 5, 2021Inventors: Teiyuu KIMURA, Noriyuki OZAKI, Akifumi UENO
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Publication number: 20210181308Abstract: An optical distance measuring device includes: a light source unit that irradiates a measurement region with irradiation light; a light receiving unit that has a light receiving surface including a plurality of light receiving elements capable of receiving reflected light from a range including the measurement region corresponding to irradiation with the irradiation light and outputs a signal corresponding to a light receiving state of the reflected light for each of the light receiving elements; and a measurement unit that measures a distance to an object in the measurement region by using the signal outputted from the light receiving unit. The light receiving unit has a function of selecting a light receiving element that outputs the signal so that a light receiving position at which the reflected light is received is variable, and the light receiving unit changes the light receiving position to a plurality of positions with respect to a position of the reflected light.Type: ApplicationFiled: February 5, 2021Publication date: June 17, 2021Inventors: Noriyuki OZAKI, Mitsuhiro KIYONO, Teiyu KIMURA, Shinji KASHIWADA
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Publication number: 20210149026Abstract: An optical distance measuring device includes a light emitting element in which a plurality of light emitting units 16 that emit light are arranged so that a gap is present between adjacent ones of the light emitting units, a transmission unit through which the light is transmitted, a drive unit that changes a positional relationship between the light emitting element and the transmission unit, and a light receiving unit that receives reflected light of the light. The drive unit changes the positional relationship between the light emitting element and the transmission unit, thereby changing an irradiation path of the light along an arrangement direction.Type: ApplicationFiled: December 30, 2020Publication date: May 20, 2021Inventors: Hitoshi YAMADA, Yoshiaki HOASHI, Fumiaki MIZUNO, Noriyuki OZAKI, Akifumi UENO
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Publication number: 20210088658Abstract: A distance measuring apparatus is provided which includes an illuminator, a plurality of photodetectors which detect reflected light arising from reflection of light, as emitted from the illuminator, from an object using SPADs, a time measuring unit which measures time elapsed after the emission of light from the illuminator until a number of the photodetectors which is larger than a given value have detected light, a timing controller which instructs the illuminator to emit the light, activates the SPADs in a Geiger mode, and instructs the time measuring unit to execute the time measurement, and a timing instruction unit which determines a light emission timing and an activation start timing of each of the SPADs for the timing controller.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Inventors: Takehiro HATA, Noriyuki OZAKI, Teiyu KIMURA
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Publication number: 20200233069Abstract: A plurality of photodetectors form a light receiving group, and a plurality of the light receiving groups form one pixel. A light receiving array is provided with one or more of such pixels. The photodetectors each output a pulse signal in response to irradiation of a photon. A measuring unit is provided for each of the plurality of light receiving groups. The measuring unit generates time information representing an elapsed time from an irradiation timing input from outside and light quantity information acquired at each of one or more timings identified from the time information, in accordance with the pulse signal output from the light receiving group. The number of the photodetectors outputting the pulse signal among the plurality of photodetectors belonging to the light receiving group is used as the light quantity information.Type: ApplicationFiled: April 8, 2020Publication date: July 23, 2020Inventors: Noriyuki OZAKI, Teiyu KIMURA, Kenta AZUMA, Takehiro HATA
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Publication number: 20200044109Abstract: A photodetector includes: a photoreceptor provided with a SPAD that is configured to respond to incidence of a photon, and as the response of the SPAD, configured to output a pulse signal; and a pulse rate control circuit configured to control sensitivity of the photoreceptor to have a pulse rate as the number of pulse signals outputted per unit time from the photoreceptor to be a set value set in advance, (i) in a set range including the set value, (ii) in a set range of the set value or more, or (iii) in a set range of the set value or less.Type: ApplicationFiled: October 10, 2019Publication date: February 6, 2020Inventors: Kenta AZUMA, Noriyuki OZAKI, Shinji KASHIWADA, Teiyu KIMURA, Isamu TAKAI, Hiroyuki MATSUBARA, Mitsuhiko OHTA, Shigeyoshi HIRATSUKA
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Publication number: 20200041621Abstract: A plurality of photodetectors form a light receiving group, and a plurality of the light receiving groups form one pixel. A light receiving array is provided with one or more of such pixels. The photodetectors each output a pulse signal in response to irradiation of a photon. A measuring unit is provided for each of the plurality of light receiving groups. The measuring unit generates time information representing an elapsed time from an irradiation timing input from outside and light quantity information acquired at each of one or more timings identified from the time information, in accordance with the pulse signal output from the light receiving group. The number of the photodetectors outputting the pulse signal among the plurality of photodetectors belonging to the light receiving group is used as the light quantity information.Type: ApplicationFiled: October 9, 2019Publication date: February 6, 2020Inventors: Noriyuki OZAKI, Teiyu KIMURA, Kenta AZUMA, Takehiro HATA
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Publication number: 20200044098Abstract: A light detector is provided to include a detection module, and a monitoring SPAD. The detection module includes an SPAD that is an avalanche photodiode operable in Geiger mode; the detection module is configured to perform light detection by applying, to the SPAD, a reverse bias voltage in a reverse direction. The monitoring SPAD has characteristics identical to characteristics of the SPAD in the detection module. The reverse bias voltage is generated to be applied to the SPAD in the detection module based on (i) a reference breakdown voltage set from a breakdown voltage generated across the monitoring SPAD in Geiger mode and (ii) a predetermined excess voltage.Type: ApplicationFiled: September 26, 2019Publication date: February 6, 2020Inventors: Kenta AZUMA, Teiyu KIMURA, Noriyuki OZAKI, Shinji KASHIWADA, Takehiro HATA, Isamu TAKAI, Hiroyuki MATSUBARA
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Publication number: 20200018831Abstract: A light detector is provided to include a light receiving array having a plurality of light receivers respectively outputting pulse signals upon incidence of photons. A delay setting value is set which is used to adjust a time interval from when the pulse signals are output from the light receiving array to when a response number, which is a specified number of the light receivers outputting the pulse signals, is acquired.Type: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Inventors: Kenta AZUMA, Noriyuki OZAKI, Shinji KASHIWADA, Teiyu KIMURA, Isamu TAKAI, Hiroyuki MATSUBARA
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Publication number: 20200018832Abstract: A photodetector includes plural detectors. Each of the plural detectors has a single photon avalanche diode (hereinafter referred to as SPAD) which responds to incidence of a photon. The plural detectors include at least a first detector and a second detector. The SPAD has a recovery time period until the SPAD reaches a next photon-responsive state, in response to the SPAD responding to the incidence of the photon. The recovery time period of the SPAD in the first detector is different from the recovery time period of the SPAD in the second detector.Type: ApplicationFiled: September 26, 2019Publication date: January 16, 2020Inventors: Kenta Azuma, Noriyuki Ozaki, Shinji Kashiwada, Teiyu Kimura, Isamu Takai, Hiroyuki Matsubara, Mitsuhiko Ohta, Shigeyoshi Hiratsuka
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Publication number: 20200018853Abstract: A light reception array unit receives light irradiated from an irradiation unit and reflected from an object, and outputs in parallel a pulse signal respectively output from a plurality of light reception units. A timer unit measures an elapsed time since an input of an irradiation timing signal. A response acquisition unit acquires a number of responses, which is a number of the light reception units outputting the pulse signal, at each fixed cycle timing, and outputs an adjusted number of responses obtained by subtracting a bias value from the number of responses or dividing the number of responses by the bias value. An address of a memory is associated with a timer value measured by the timer unit. A histogram generation unit integrates and stores, in a memory address specified from a timer value, the adjusted number of responses as data at that address.Type: ApplicationFiled: September 26, 2019Publication date: January 16, 2020Inventors: Takehiro HATA, Noriyuki OZAKI, Teiyu KIMURA, Kenta AZUMA, Shinji KASHIWADA
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Publication number: 20150364966Abstract: A rotating electrical machine includes an annular stator, a motor case in which the stator is accommodated, and an annular inner frame with which one axial end of the stator is supported on the motor casing. The inner frame includes a bolt fastening portion, which couples the stator at a radially outer side, and a bolt fastening portion, which couples the motor case at a radially inner side. At a connecting portion between the first coupling portion and the second coupling portion, the radial rigidity is lower than the circumferential rigidity.Type: ApplicationFiled: January 30, 2014Publication date: December 17, 2015Inventors: Souichi MAIHARA, Tadashi YABE, Noriyuki OZAKI
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Patent number: 8491490Abstract: An analyzing apparatus comprises a first counter part and a second counter part. The first counter part determines a significant respiratory disorder pattern based on the average of multiple amplitudes included in a respiratory signal, and counts the number of respiratory disorders. The second counter part that determines, when the number of respiratory disorders per unit time counted by the first counter part is greater than a predetermined number, a significant respiratory disorder pattern by the values of individual amplitudes included in the respiratory signal, and again counts the number of respiratory disorders. A more accurate apnea hypopnea index is obtained for serious patients, and accuracy as PSG screening examination can be increased.Type: GrantFiled: January 3, 2007Date of Patent: July 23, 2013Assignee: DENSO CORPORATIONInventors: Noriyuki Ozaki, Seiichi Yamada
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Patent number: 8106751Abstract: A visual ability improvement device installed in a vehicle includes a noise generator, a surrounding situation detector, a driver status detector, a vehicle status detector, an operation switch, and a noise output device. A controller of the noise generator determines an optimum strength based on the surrounding situation from the surrounding situation detector, the driver's status from the driver status detector, the vehicle's status from the vehicle status detector, and the correspondence of the optimum representative noise to the above situation and statuses from the correspondence memory. Then the controller generates a noise with the determined the optimum representative noise strength, and outputs to the noise output device such as passenger compartment light a control signal which depends on the generated noise.Type: GrantFiled: December 15, 2005Date of Patent: January 31, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hiroto Nakatani, Teiyuu Kimura, Noriyuki Ozaki, Kenichi Mori, Minoru Makiguchi
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Patent number: 8045766Abstract: A sleep prevention system captures a facial image of a driver, determines a sleepiness level from the facial image and operates warning devices including neck air conditioner, seatbelt vibrator, and brake controller if necessary based on the sleepiness determination. A sleepiness determination device determines sleepiness from facial expression information such as distances between corners of a mouth, distance between an eyebrow and eye, tilt angle of a head, and other facial feature distances. The facial distances are calculated from captured images and from reference information gather during wakefulness. The sleepiness degree is determined based on the determination results including combinations thereof.Type: GrantFiled: February 12, 2008Date of Patent: October 25, 2011Assignee: DENSO CORPORATIONInventors: Kenji Ishida, Kahori Uchiyama, Teiyuu Kimura, Noriyuki Ozaki
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Publication number: 20080312516Abstract: A living body information display apparatus, together with a sleeping posture and position detection apparatus, is used to correctly and suitably capture an abnormal condition in a living body while the living body is sleeping/lying on a bed or on the apparatus. Living body information and sleeping posture/position are captured by pressure sensors placed under a sleeper. The living body information includes, for example, respiratory information, body movement information, and sleeping posture. The information of the sleeper is represented in color-coded time chart, in writing and in a rough image based on the sensor signals. By using this apparatus, a user can readily understands the position, posture and respiratory information of the sleeper.Type: ApplicationFiled: June 5, 2008Publication date: December 18, 2008Applicant: DENSO CORPORATIONInventors: Noriyuki Ozaki, Hiroto Nakatani, Kenichi Yanai
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Publication number: 20080212828Abstract: A sleep prevention system captures a facial image of a driver, determines a sleepiness level from the facial image and operates warning devices including neck air conditioner, seatbelt vibrator, and brake controller if necessary based on the sleepiness determination. A sleepiness determination device determines sleepiness from facial expression information such as distances between corners of a mouth, distance between an eyebrow and eye, tilt angle of a head, and other facial feature distances. The facial distances are calculated from captured images and from reference information gather during wakefulness. The sleepiness degree is determined based on the determination results including combinations thereof.Type: ApplicationFiled: February 12, 2008Publication date: September 4, 2008Applicant: DENSO CORPORATIONInventors: Kenji Ishida, Kahori Uchiyama, Teiyuu Kimura, Noriyuki Ozaki
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Publication number: 20080136609Abstract: A visual ability improvement device installed in a vehicle includes a noise generator, a surrounding situation detector, a driver status detector, a vehicle status detector, an operation switch, and a noise output device. A controller of the noise generator determines an optimum strength based on the surrounding situation from the surrounding situation detector, the driver's status from the driver status detector, the vehicle's status from the vehicle status detector, and the correspondence of the optimum representative noise to the above situation and statuses from the correspondence memory. Then the controller generates a noise with the determined the optimum representative noise strength, and outputs to the noise output device such as passenger compartment light a control signal which depends on the generated noise.Type: ApplicationFiled: December 15, 2005Publication date: June 12, 2008Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroto Nakatani, Teiyuu Kimura, Noriyuki Ozaki, Kenichi Mori, Minoru Makiguchi
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Patent number: 7317380Abstract: A visual recognition support system includes a noise area determination function for determining a noise area where a visual noise is output to improve sensitivity of visual recognition of an object in need of attention of an operator of a vehicle. The intensity of the visual noise is determined based on a threshold of the visual perception.Type: GrantFiled: July 19, 2005Date of Patent: January 8, 2008Assignee: DENSO CORPORATIONInventors: Noriyuki Ozaki, Hiroto Nakatani, Teiyuu Kimura, Minoru Makiguchi
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Patent number: 7306564Abstract: A breath monitor includes: a plurality of sensors for detecting a load derived from a human lying on a bed and for outputting a sensor signal corresponding to the load; and breath signal computation means. The sensors are disposed under the human with a predetermined arrangement. The breath signal computation means converts each sensor signal to a frequency domain so that a spectrum of each sensor signal is obtained, selects the sensors on the basis of the converted sensor signals, and computes a breath signal on the basis of the sensor signals outputted from the selected sensors.Type: GrantFiled: September 28, 2004Date of Patent: December 11, 2007Assignee: DENSO CORPORATIONInventors: Hiroto Nakatani, Noriyuki Ozaki, Kenichi Yanai