Patents by Inventor Koji ITABA

Koji ITABA 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).

  • Patent number: 12559022
    Abstract: A gating camera divides a field of view in a depth direction into multiple slices, and generates multiple slice images that correspond to the multiple slices. An illumination apparatus emits illumination light. A camera controller controls a light emission timing of the illumination apparatus and an exposure timing of an image sensor so as to generate slice images from a near slice to a farther slice. An arithmetic processing device judges whether a road surface appears for each of the slice images generated in sequence. Processing for a row judged to include a road surface in a given slice is simplified at the time of sensing of a slice farther than the given slice.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: February 24, 2026
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Koji Itaba, Masayuki Takahashi, Daiki Kato, Shun Tanemoto, Masatoshi Suzuki, Keita Kondo
  • Patent number: 12379497
    Abstract: An object identification system includes a camera and a processing device. The processing device includes a classifier subjected to machine learning based on the output image of the camera so as to allow it to identify an object. A gating camera divides a field of view in the depth direction into multiple ranges, and captures an image while changing the time difference between light projection and exposure for each range. The classifier is subjected to machine learning using multiple images IMG1 through IMGN generated by the gating camera as the learning data.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 5, 2025
    Assignees: BRIGHTWAY VISION LTD., KOITO MANUFACTURING CO., LTD.
    Inventors: Kensuke Arai, Toru Nagashima, Koji Itaba, Jun Kano
  • Patent number: 12375819
    Abstract: An illumination device irradiates a field of view with pulsed illumination light. In a multi-tap type image sensor, one pixel has a plurality of FD (floating diffusion) regions. A camera controller controls a light emission timing of the illumination device and an exposure timing of the image sensor. A pulse exposure region, which is one of the plurality of FD regions, is allocated to generation of a slice image, and a continuous exposure region, which is another one of the plurality of FD regions, is allocated to generation of a normal image. The image sensor generates the slice image by performing multiple exposure of reflected light of the pulsed illumination light from the field of view using the pulse exposure region, and generates the normal image by performing exposure using the continuous exposure region in a section where the pulse exposure region is not used.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: July 29, 2025
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Kenichi Hoshi, Yasuo Nakamura, Koji Itaba
  • Publication number: 20250147157
    Abstract: A measuring device includes a sensor including a light-receiving element configured to generate charge according to an exposure amount and a plurality of accumulation portions configured to accumulate charge distributed according to an exposure period; a signal acquisition unit configured to acquire signal values corresponding to the charge of the plurality of accumulation portions, respectively; and a correction unit configured to identify a minimum signal value that indicates the smallest exposure amount from among the plurality of signal values and to correct the signal value based on the minimum signal value.
    Type: Application
    Filed: November 24, 2022
    Publication date: May 8, 2025
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Koji ITABA, Kenichi HOSHI
  • Publication number: 20250123374
    Abstract: In a measurement device of the present disclosure, a timing control unit sets, as an exposure period corresponding to a measurement target region and set by a timing control unit, a plurality of sub-exposure periods that are longer than a width of pulsed light emitted from a light emitting unit and have different start timings so as to have an overlap period corresponding to the width of the pulsed light, and causes a pixel of a imaging sensor to be exposed to reflected light in each of the sub-exposure periods, and a signal acquisition unit acquires a signal value corresponding to a sum of exposure amounts of the pixel in the plurality of sub-exposure periods.
    Type: Application
    Filed: November 24, 2022
    Publication date: April 17, 2025
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kenichi HOSHI, Koji ITABA
  • Patent number: 12262101
    Abstract: A gating camera divides a field of view in a depth direction into multiple ranges, and generates multiple slice images that correspond to the multiple ranges. An illumination apparatus emits probe light. A controller controls a timing of emission of the probe light L1 by the illumination apparatus and a timing of image capture by a first image sensor and a second image sensor. The controller controls the first image sensor and the second image sensor such that they receive reflected light from different respective ranges in response to one emission of the probe light from the illumination apparatus.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 25, 2025
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Koji Itaba, Jun Kano
  • Publication number: 20250085423
    Abstract: A measurement device includes: a light emitting unit configured to emit light to each of a plurality of measurement areas at different heights; an exposure unit having a plurality of exposure areas respectively corresponding to the measurement areas at different heights, and exposed to reflected light from the measurement areas by a plurality of light receiving elements respectively provided for the exposure areas; and a distance calculation unit configured to calculate a distance to a target in the measurement areas based on an exposure result of the exposure unit.
    Type: Application
    Filed: November 24, 2022
    Publication date: March 13, 2025
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masayuki TAKAHASHI, Kenichi HOSHI, Masatoshi SUZUKI, Koji ITABA
  • Patent number: 12250469
    Abstract: A gated camera divides a depth direction into a plurality of ranges and generates a plurality of slice images corresponding to the plurality of ranges. An illumination device radiates probe light. A controller controls a light emission timing of the illumination device and an exposure timing of an image sensor. An image processing device generates a slice image based on a sensor image transmitted from the image sensor. The image processing device selects M (M?2) pixel values in ascending order of pixel values for each line of the sensor image, calculates an average value of the M pixel values, and subtracts the average value from each pixel value of the corresponding line.
    Type: Grant
    Filed: April 2, 2021
    Date of Patent: March 11, 2025
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Daiki Kato, Masayuki Takahashi, Koji Itaba, Shun Tanemoto
  • Publication number: 20240430578
    Abstract: An illumination device irradiates a field of view with pulsed illumination light. In a multi-tap type image sensor, one pixel has a plurality of FD (floating diffusion) regions. A camera controller controls a light emission timing of the illumination device and an exposure timing of the image sensor. A pulse exposure region, which is one of the plurality of FD regions, is allocated to generation of a slice image, and a continuous exposure region, which is another one of the plurality of FD regions, is allocated to generation of a normal image. The image sensor generates the slice image by performing multiple exposure of reflected light of the pulsed illumination light from the field of view using the pulse exposure region, and generates the normal image by performing exposure using the continuous exposure region in a section where the pulse exposure region is not used.
    Type: Application
    Filed: August 5, 2022
    Publication date: December 26, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kenichi HOSHI, Yasuo NAKAMURA, Koji ITABA
  • Patent number: 12135394
    Abstract: An illumination apparatus illuminates probe light. A gating camera captures an image for each of image capture ranges divided in the depth direction. A camera controller controls a timing at which the illumination apparatus illuminates the probe light and a timing at which an image sensor is exposed such that each slice image output from the image sensor for each image capture range includes only an object included in the corresponding image capture range while changing the image capture range. An image processing unit generates a final image including the entire object of interest based on the multiple slice images that correspond to the multiple image capture ranges.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: November 5, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Daiki Kato, Masayuki Takahashi, Koji Itaba
  • Publication number: 20240210531
    Abstract: The gating camera 20 divides the field of view in the depth-direction into multiple ranges RNG1 through RNGN, and generates multiple slice images IMGs1 through IMGsN that correspond to the multiple ranges RNG1 through RNGN. The illumination apparatus 22 is capable of controlling the light emission timing, and emits probe light L1 in synchronization with the light emission timing signal S1. The image sensor 24 is capable of exposure in synchronization with the exposure timing signal S2. The camera controller 26 controls the light emission timing of the illumination apparatus 22 and the image capture timing of the image sensor 24 for each range, and controls the effective image capture range of the image sensor 24 according to the vehicle speed.
    Type: Application
    Filed: April 21, 2022
    Publication date: June 27, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Shun TANEMOTO, Masayuki TAKAHASHI, Koji ITABA, Daiki KATO, Masatoshi SUZUKI
  • Publication number: 20240083346
    Abstract: A gating camera divides a field of view in a depth direction into multiple slices, and generates multiple slice images that correspond to the multiple slices. An illumination apparatus emits illumination light. A camera controller controls a light emission timing of the illumination apparatus and an exposure timing of an image sensor so as to generate slice images from a near slice to a farther slice. An arithmetic processing device judges whether a road surface appears for each of the slice images generated in sequence. Processing for a row judged to include a road surface in a given slice is simplified at the time of sensing of a slice farther than the given slice.
    Type: Application
    Filed: January 26, 2022
    Publication date: March 14, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Koji ITABA, Masayuki TAKAHASHI, Daiki KATO, Shun TANEMOTO, Masatoshi SUZUKI, Keita KONDO
  • Publication number: 20240067094
    Abstract: A gating camera divides a field of view in a depth direction into multiple ranges, and generates multiple slice images that correspond to the multiple ranges. A controller is configured to generate an emission control signal and an exposure control signal. An illumination apparatus emits probe light according to the emission control signal during normal imaging. An image sensor performs exposure according to the exposure control signal. A calibration light source emits calibration light to the image sensor according to the emission control signal during calibration. The controller sweeps a time difference between the emission control signal and the exposure control signal, and monitors a change in a pixel value of the image sensor during the calibration.
    Type: Application
    Filed: December 17, 2021
    Publication date: February 29, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kenichi HOSHI, Koji ITABA, Daiki KATO
  • Publication number: 20230341749
    Abstract: A gating camera 20 divides a field of view into a plurality of ranges in a depth direction and generates a plurality of slice images corresponding to the plurality of ranges. An illumination device 22 radiates probe light L1. An image sensor 24 outputs a compressed image IMG_COMP obtained by compressing image information related to, among a plurality of lines constituting a raw image IMG_RAW obtained as a result of an exposure, an invalid line that does not contain a target. A camera controller 26 controls a light emission timing of the illumination device 22 and an exposure timing of the image sensor 24. An image processing device 28 receives the compressed image IMG_COMP from the image sensor 24, and decompresses a slice image IMG.
    Type: Application
    Filed: July 6, 2021
    Publication date: October 26, 2023
    Applicant: KOITO MANUFACTURING CO., LTD
    Inventors: Daiki KATO, Masayuki TAKAHASHI, Koji ITABA, Shun TANEMOTO
  • Publication number: 20230179841
    Abstract: A gating camera divides a field of view in a depth direction into multiple ranges, and generates multiple slice images that correspond to the multiple ranges. An illumination apparatus emits probe light. A controller controls a timing of emission of the probe light L1 by the illumination apparatus and a timing of image capture by a first image sensor and a second image sensor. The controller controls the first image sensor and the second image sensor such that they receive reflected light from different respective ranges in response to one emission of the probe light from the illumination apparatus.
    Type: Application
    Filed: March 6, 2020
    Publication date: June 8, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Koji ITABA, Jun KANO
  • Publication number: 20230156341
    Abstract: A gated camera divides a depth direction into a plurality of ranges and generates a plurality of slice images corresponding to the plurality of ranges. An illumination device radiates probe light. A controller controls a light emission timing of the illumination device and an exposure timing of an image sensor. An image processing device generates a slice image based on a sensor image transmitted from the image sensor. The image processing device selects M (M ? 2) pixel values in ascending order of pixel values for each line of the sensor image, calculates an average value of the M pixel values, and subtracts the average value from each pixel value of the corresponding line.
    Type: Application
    Filed: April 2, 2021
    Publication date: May 18, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Daiki KATO, Masayuki TAKAHASHI, Koji ITABA, Shun TANEMOTO
  • Publication number: 20220214434
    Abstract: An illumination apparatus illuminates probe light. A gating camera captures an image for each of image capture ranges divided in the depth direction. A camera controller controls a timing at which the illumination apparatus illuminates the probe light and a timing at which an image sensor is exposed such that each slice image output from the image sensor for each image capture range includes only an object included in the corresponding image capture range while changing the image capture range. An image processing unit generates a final image including the entire object of interest based on the multiple slice images that correspond to the multiple image capture ranges.
    Type: Application
    Filed: March 23, 2022
    Publication date: July 7, 2022
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Daiki KATO, Masayuki TAKAHASHI, Koji ITABA
  • Publication number: 20220035039
    Abstract: A light source illuminates the FOV with pulsed illumination light having an intensity that changes with time. An image sensor is exposed to reflected light from an object in two consecutive exposures. A calculation unit generates a distance image giving consideration to the waveform of the illumination light based on the output of the image sensor acquired in the two exposures.
    Type: Application
    Filed: October 20, 2021
    Publication date: February 3, 2022
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Koji ITABA
  • Publication number: 20210295065
    Abstract: An object identification system includes a camera and a processing device. The processing device includes a classifier subjected to machine learning based on the output image of the camera so as to allow it to identify an object. A gating camera divides a field of view in the depth direction into multiple ranges, and captures an image while changing the time difference between light projection and exposure for each range. The classifier is subjected to machine learning using multiple images IMG1 through IMGN generated by the gating camera as the learning data.
    Type: Application
    Filed: June 9, 2021
    Publication date: September 23, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kensuke ARAI, Toru NAGASHIMA, Koji ITABA, Jun KANO