Patents by Inventor Kenji SAITSU

Kenji SAITSU 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: 11516393
    Abstract: An interchangeable lens apparatus attachable to an imaging apparatus configured to move an image sensor in an image stabilization includes an imaging optical system, a storage unit configured to store image circle information including a relationship between an imaging condition and position information of an image circle of the imaging optical system, and a transmission unit configured to transmit at least part of the image circle information to the imaging apparatus.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: November 29, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shigenobu Sugita, Kenji Saitsu, Masakazu Kodaira
  • Patent number: 11490012
    Abstract: A control apparatus includes a first acquirer configured to acquire first blur information based on a motion vector calculated using an imaging signal from an image sensor, a second acquirer configured to acquire second blur information based on a blur signal from a blur detector, and a controller configured to control driving of an image stabilizing element in accordance with third blur information obtained by using the first blur information and the second blur information. A weight for the first blur information in acquiring the third blur information is determined based on a comparison between the first blur information and the second blur information.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: November 1, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kenji Saitsu
  • Patent number: 11336827
    Abstract: An interchangeable lens apparatus attachable to an imaging apparatus configured to move an image sensor in an image stabilization includes an imaging optical system, a storage unit configured to store image circle information including a relationship between an imaging condition and position information of an image circle of the imaging optical system, and a transmission unit configured to transmit at least part of the image circle information to the imaging apparatus.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: May 17, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shigenobu Sugita, Kenji Saitsu, Masakazu Kodaira
  • Patent number: 11108958
    Abstract: An interchangeable lens apparatus attachable to an imaging apparatus configured to move an image sensor in an image stabilization includes an imaging optical system, a storage unit configured to store image circle information including a relationship between an imaging condition and position information of an image circle of the imaging optical system, and a transmission unit configured to transmit at least part of the image circle information to the imaging apparatus.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: August 31, 2021
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Shigenobu Sugita, Kenji Saitsu, Masakazu Kodaira
  • Publication number: 20210243372
    Abstract: An interchangeable lens apparatus attachable to an imaging apparatus configured to move an image sensor in an image stabilization includes an imaging optical system, a storage unit configured to store image circle information including a relationship between an imaging condition and position information of an image circle of the imaging optical system, and a transmission unit configured to transmit at least part of the image circle information to the imaging apparatus.
    Type: Application
    Filed: April 21, 2021
    Publication date: August 5, 2021
    Inventors: Shigenobu Sugita, Kenji Saitsu, Masakazu Kodaira
  • Publication number: 20200366846
    Abstract: A control apparatus includes a first acquirer configured to acquire first blur information based on a motion vector calculated using an imaging signal from an image sensor, a second acquirer configured to acquire second blur information based on a blur signal from a blur detector, and a controller configured to control driving of an image stabilizing element in accordance with third blur information obtained by using the first blur information and the second blur information. A weight for the first blur information in acquiring the third blur information is determined based on a comparison between the first blur information and the second blur information.
    Type: Application
    Filed: May 4, 2020
    Publication date: November 19, 2020
    Inventor: Kenji Saitsu
  • Publication number: 20190141246
    Abstract: An interchangeable lens apparatus attachable to an imaging apparatus configured to move an image sensor in an image stabilization includes an imaging optical system, a storage unit configured to store image circle information including a relationship between an imaging condition and position information of an image circle of the imaging optical system, and a transmission unit configured to transmit at least part of the image circle information to the imaging apparatus.
    Type: Application
    Filed: November 5, 2018
    Publication date: May 9, 2019
    Inventors: Shigenobu Sugita, Kenji Saitsu, Masakazu Kodaira
  • Patent number: 9503646
    Abstract: An image blur correction apparatus includes an shooting state detecting portion that determines a shooting state of a first shooting state or a second shooting state based on an angular velocity signal, and a controller that performs an image blur correction using characteristics depending on a determination result of the shooting state determining portion, and the shooting state determining portion determines that the first shooting state has started when the angular velocity signal exceeds a first threshold value and exceeds a second threshold value having an opposite sign of the first threshold value within a predetermined time after exceeding the first threshold value, and determines that the first shooting state is continuously maintained when the angular velocity signal exceeds a third threshold value and exceeds a fourth threshold value that has an opposite sign of the third threshold value within the predetermined time after exceeding the third threshold value.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: November 22, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kenji Saitsu
  • Patent number: 9392172
    Abstract: An image blur correction apparatus includes an shooting state detecting portion that determines a shooting state of a first shooting state or a second shooting state based on an angular velocity signal, and a controller that performs an image blur correction using characteristics depending on a determination result of the shooting state determining portion, and the shooting state determining portion determines that the first shooting state has started when the angular velocity signal exceeds a first threshold value and exceeds a second threshold value having an opposite sign of the first threshold value within a predetermined time after exceeding the first threshold value, and determines that the first shooting state is continuously maintained when the angular velocity signal exceeds a third threshold value and exceeds a fourth threshold value that has an opposite sign of the third threshold value within the predetermined time after exceeding the third threshold value.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 12, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Kenji Saitsu
  • Publication number: 20150215539
    Abstract: An image blur correction apparatus includes an shooting state detecting portion that determines a shooting state of a first shooting state or a second shooting state based on an angular velocity signal, and a controller that performs an image blur correction using characteristics depending on a determination result of the shooting state determining portion, and the shooting state determining portion determines that the first shooting state has started when the angular velocity signal exceeds a first threshold value and exceeds a second threshold value having an opposite sign of the first threshold value within a predetermined time after exceeding the first threshold value, and determines that the first shooting state is continuously maintained when the angular velocity signal exceeds a third threshold value and exceeds a fourth threshold value that has an opposite sign of the third threshold value within the predetermined time after exceeding the third threshold value.
    Type: Application
    Filed: April 2, 2015
    Publication date: July 30, 2015
    Inventor: Kenji SAITSU
  • Publication number: 20130093905
    Abstract: An image blur correction apparatus includes an shooting state detecting portion that determines a shooting state of a first shooting state or a second shooting state based on an angular velocity signal, and a controller that performs an image blur correction using characteristics depending on a determination result of the shooting state determining portion, and the shooting state determining portion determines that the first shooting state has started when the angular velocity signal exceeds a first threshold value and exceeds a second threshold value having an opposite sign of the first threshold value within a predetermined time after exceeding the first threshold value, and determines that the first shooting state is continuously maintained when the angular velocity signal exceeds a third threshold value and exceeds a fourth threshold value that has an opposite sign of the third threshold value within the predetermined time after exceeding the third threshold value.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 18, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Kenji SAITSU