Patents by Inventor David Dobbelstein

David Dobbelstein 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: 11864841
    Abstract: A method of operating a surgical microscope includes receiving an instruction to move the camera relative to the object, operating a zoom lens to zoom out and displaying images obtained by processing images recorded by the camera such that centers of the displayed images correspond to a target position within the recorded images and such that the magnification of the object displayed in the images is the initial magnification, wherein the target position is displaced within the recorded images relative to the first position, and operating actuators to move the camera.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: January 9, 2024
    Assignee: Carl Zeiss Meditec AG
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Publication number: 20230310089
    Abstract: A method and associated system for operating a robotic visualization system comprising an imaging optical unit and a robotic arm for positioning the imaging optical unit within a surround. The method includes ascertaining a target field of view to be visualized by means of the imaging optical unit. Ascertaining a target pose of the robotic visualization system for capturing an image of the target field of view with a first imaging configuration of the imaging optical unit. Ascertaining a collision probability along a movement path of the robotic visualization system from a current pose to the ascertained target pose using a 3-D model of the surround. Ascertaining an adapted target pose for capturing an image corresponding to the target field of view with a second imaging configuration of the imaging optical unit using the 3-D model of the surround, should the ascertained collision probability exceed a predetermined threshold value.
    Type: Application
    Filed: March 14, 2023
    Publication date: October 5, 2023
    Inventors: Fang YOU, David DOBBELSTEIN, Joachim STEFFEN
  • Patent number: 11607287
    Abstract: A method of operating a surgical microscope includes detecting a position of a user, and setting a rotation angle of a camera about its main axis such that it is between a first angle and a second angle. The first angle is the rotation angle required to display a first straight object as a vertical line, and the second angle is the rotation angle required to display a second straight object as a horizontal line. The first object extends along a first line arranged in a vertical plane containing a line connecting the position of the user with the field of view. The first line is horizontal and traverses the field of view. The second object extends along a second line traversing the field of view. The second line is horizontal and perpendicular to the first line.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 21, 2023
    Assignee: Carl Zeiss Meditec AG
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Patent number: 11460684
    Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: October 4, 2022
    Assignee: Carl Zeiss Meditec AG
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Patent number: 11409091
    Abstract: A method of operating a surgical microscope includes detecting a direction of gaze of a user and detecting an amount of a movement of a head of the user. The movement of the head of the user is of a translatory movement type and a rotatory movement type. Amounts of movements or rotations of the camera or changes in the magnification are performed based on the detected amount of a movement of the head of the user.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: August 9, 2022
    Assignee: Carl Zeiss Meditec AG
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Publication number: 20210271065
    Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.
    Type: Application
    Filed: May 17, 2021
    Publication date: September 2, 2021
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Publication number: 20210196422
    Abstract: A method of operating a surgical microscope includes detecting a position of a user, and setting a rotation angle of a camera about its main axis such that it is between a first angle and a second angle. The first angle is the rotation angle required to display a first straight object as a vertical line, and the second angle is the rotation angle required to display a second straight object as a horizontal line. The first object extends along a first line arranged in a vertical plane containing a line connecting the position of the user with the field of view. The first line is horizontal and traverses the field of view. The second object extends along a second line traversing the field of view. The second line is horizontal and perpendicular to the first line.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Publication number: 20210199945
    Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Publication number: 20210199940
    Abstract: A method of operating a surgical microscope includes detecting a direction of gaze of a user and detecting an amount of a movement of a head of the user. The movement of the head of the user is of a translatory movement type and a rotatory movement type. Amounts of movements or rotations of the camera or changes in the magnification are performed based on the detected amount of a movement of the head of the user.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Publication number: 20210196396
    Abstract: A method of operating a surgical microscope includes receiving an instruction to move the camera relative to the object, operating a zoom lens to zoom out and displaying images obtained by processing images recorded by the camera such that centers of the displayed images correspond to a target position within the recorded images and such that the magnification of the object displayed in the images is the initial magnification, wherein the target position is displaced within the recorded images relative to the first position, and operating actuators to move the camera.
    Type: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Inventors: Fang You, David Dobbelstein, Stefan Saur
  • Patent number: 11048072
    Abstract: A method of operating a surgical microscope includes detecting an amount of movement of a body portion of a user, and performing movements of a camera and changes in a magnification based on the detected movements of the body portion. The amounts of these movements and changes decrease with increasing magnification provided by the surgical microscope, they decrease with decreasing distance of the body portion of the user from the display, and they decrease with decreasing distance of the cameras from the field of view of the cameras.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 29, 2021
    Assignee: Carl Zeiss Meditec AG
    Inventors: Fang You, David Dobbelstein, Stefan Saur