Patents by Inventor Tomohiro Sabata

Tomohiro Sabata 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: 11439366
    Abstract: An image processing apparatus includes: a display controller configured to cause a display to display an image including a first pointer having a predetermined shape superimposed thereon and move a position of the first pointer within the image in accordance with an input position that is input from an input device; a region-of-interest setting circuit configured to set a region corresponding to the position of the first pointer within the image as a region of interest when a confirmation operation for confirming the input position is input to the input device; and a distance determining circuit configured to determine a distance between a first representative position of the first pointer and a second representative position of the region of interest within the image.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: September 13, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomohiro Sabata
  • Patent number: 11432807
    Abstract: Provided is an ultrasound imaging system configured to generate data of an ultrasound image based on an echo signal received by each of a plurality of elements included in an ultrasound transducer, the ultrasound imaging system includes: a determining circuit configured to determine, using a signal corresponding to the echo signal obtained by receiving from each of the plurality of elements, concerning the elements, whether a decrease in reception sensitivity occurs; and a control circuit configured to cause, based on a position of an element where the determining circuit determines that the decrease in the reception sensitivity occurs, a display to display at least one of display data indicating an image region where sensitivity decreases in the ultrasound image and information for informing that a sensitivity decreased element in which a decrease in reception sensitivity occurs is present.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: September 6, 2022
    Assignee: OLYMPUS CORPORATION
    Inventor: Tomohiro Sabata
  • Publication number: 20200305848
    Abstract: Provided is an ultrasound imaging system configured to generate data of an ultrasound image based on an echo signal received by each of a plurality of elements included in an ultrasound transducer, the ultrasound imaging system includes: a determining circuit configured to determine, using a signal corresponding to the echo signal obtained by receiving from each of the plurality of elements, concerning the elements, whether a decrease in reception sensitivity occurs; and a control circuit configured to cause, based on a position of an element where the determining circuit determines that the decrease in the reception sensitivity occurs, a display to display at least one of display data indicating an image region where sensitivity decreases in the ultrasound image and information for informing that a sensitivity decreased element in which a decrease in reception sensitivity occurs is present.
    Type: Application
    Filed: June 15, 2020
    Publication date: October 1, 2020
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomohiro SABATA
  • Publication number: 20190357887
    Abstract: An image processing apparatus includes: a display controller configured to cause a display to display an image including a first pointer having a predetermined shape superimposed thereon and move a position of the first pointer within the image in accordance with an input position that is input from an input device; a region-of-interest setting circuit configured to set a region corresponding to the position of the first pointer within the image as a region of interest when a confirmation operation for confirming the input position is input to the input device; and a distance determining circuit configured to determine a distance between a first representative position of the first pointer and a second representative position of the region of interest within the image.
    Type: Application
    Filed: June 14, 2019
    Publication date: November 28, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomohiro SABATA
  • Publication number: 20190254637
    Abstract: An ultrasonic observation device includes a processor including hardware. The processor is configured to: read a video made of ultrasonic images arranged in a chronological manner from a memory; perform time intensity curve (TIC) analysis on the video based on temporal changes in signal intensities of ultrasonic waves reflected by a contrast dye administered into a subject being examined; extract information about user operation stored in the memory along the ultrasonic images; and control a display to display fact that the information about user operation is extracted.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Applicant: OLYMPUS CORPORATION
    Inventor: Tomohiro SABATA
  • Patent number: 8641624
    Abstract: An ultrasound diagnostic apparatus includes a connection section to which an ultrasound probe having an ultrasound transducer mounted therein is detachably connected, a transmission section that drives the ultrasound transducer of the ultrasound probe connected to the connection section by a transmission signal of a transmission frequency thereof, an echo signal creation section that creates a digital echo signal from an echo signal received by the ultrasound transducer, a signal processing section that carries out signal processing to the digital echo signal, a processing-speed changing section that changes an operation frequency of the signal processing in the signal processing section, and a change control section that controls change of the operation frequency.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: February 4, 2014
    Assignee: Olympus Medical Systems Corp.
    Inventor: Tomohiro Sabata
  • Patent number: 8088069
    Abstract: An ultrasonic Doppler diagnosis device having a velocity data interpolating section for generating interpolated velocity data for interpolating velocity data between two sound lines and two scanning lines, using the velocity data at the intersections. The velocity data interpolating section converts two scalar arrays of unsigned numeric data corresponding to a first and second numeric values to signed arrays of numeric data using a data converting section and generates the interpolated velocity data based on the converted signed array of numeric data, when a result of identification obtained from an identifying section indicates that one of the first and second numeric values has a positive velocity smaller than a first threshold value corresponding to a positive velocity, and the other of the first and second numeric values has a negative velocity greater than a second threshold value corresponding to a negative velocity.
    Type: Grant
    Filed: December 18, 2007
    Date of Patent: January 3, 2012
    Assignee: Olympus Medical Systems Corp.
    Inventor: Tomohiro Sabata
  • Publication number: 20110015523
    Abstract: An ultrasound observation apparatus has an ultrasound probe or an ultrasound endoscope manually moved relative to a subject, and displays a plurality of ultrasound tomographic images in time sequence with the movement. The ultrasound observation apparatus has a control section which, when a first display range is selected, performs control so that images are displayed in a first number of displayed frames per stroke time, which, when a second display range is selected, performs control so that the number of displayed frames per stroke time is smaller than the first number of displayed frames, and which, when a manual scanning mode is selected, performs control so that a predetermined number of frames per stroke time are displayed regardless of whether the display range is the first display range or the second display range.
    Type: Application
    Filed: June 29, 2010
    Publication date: January 20, 2011
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Tomohiro SABATA
  • Publication number: 20090240151
    Abstract: An ultrasound diagnostic apparatus includes a connection section to which an ultrasound probe having an ultrasound transducer mounted therein is detachably connected, a transmission section that drives the ultrasound transducer of the ultrasound probe connected to the connection section by a transmission signal of a transmission frequency thereof, an echo signal creation section that creates a digital echo signal from an echo signal received by the ultrasound transducer, a signal processing section that carries out signal processing to the digital echo signal, a processing-speed changing section that changes an operation frequency of the signal processing in the signal processing section, and a change control section that controls change of the operation frequency.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 24, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Tomohiro SABATA
  • Publication number: 20080208058
    Abstract: The ultrasound diagnostic apparatus of the present invention includes: an ultrasound transmitting/receiving unit for receiving an echo signal; dynamic blood flow detection unit for calculating a predetermined detection value based on dynamic blood flow in a test subject based on the echo signal; a luminance value conversion unit for converting the predetermined detection value into a luminance value; a luminance value replacement unit retaining luminance value conversion information; and a comparison unit for comparing a first luminance value in one frame with a second luminance value in the frame immediately preceding the one frame, out of the luminance values outputted from the luminance value conversion unit, wherein the comparison unit is adapted to output either the first luminance value or a third luminance value which is not larger than the absolute value of the second luminance value, based on the comparison result and the luminance value replacement information.
    Type: Application
    Filed: March 25, 2008
    Publication date: August 28, 2008
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Tomohiro SABATA, Kenichi OBA, Tadaaki KANBARA
  • Publication number: 20080154134
    Abstract: First to third interpolation processing circuits are configured by a data identifying unit, a data converting unit, a data interpolating unit, a data reconverting unit and four switches SW1 to SW4. After the data identifying unit determines a value of velocity data, the data converting unit, the data interpolating unit and the data reconverting unit switch between vector operation on a complex space based on a scalar array and vector operation on a complex space based on a color palette array and execute interpolation processing.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 26, 2008
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventor: Tomohiro SABATA
  • Publication number: 20040249287
    Abstract: An ultrasonic diagnosis apparatus for obtaining ultrasonic echo signals of a part to be examined from a probe in a body cavity includes an ultrasonic probe, a detector and a voxel data creating circuit. The ultrasonic probe has at predetermined positions of an inserting axis a plurality of ultrasonic transducers on the circumference about the inserting axis for performing ultrasonic scanning by using the plurality of ultrasonic transducers on a plane perpendicular to the inserting axis by sending and receiving ultrasound to and from the plurality of ultrasonic transducers. The detector determines the position or orientation of the scanned plane by the ultrasonic scanning by the ultrasonic probe. The voxel data creating circuit creates voxel data based on ultrasonic tomographic image data from echo signals obtained by the ultrasonic probe and based on the position or orientation data determined by the detector.
    Type: Application
    Filed: June 4, 2003
    Publication date: December 9, 2004
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventors: Tomonao Kawashima, Tomohiro Sabata