公开(公告)号：US09876974B2

公开(公告)日：2018-01-23

申请号：US15371676

申请日：2016-12-07

Applicant: OLYMPUS CORPORATION

Inventor： Fumiyuki Okawa ,  Hidenori Hashimoto ,  Yasunori Matsui

IPC: H04N7/18 ,  H04N11/02 ,  H04N9/47 ,  H04N5/3745 ,  A61B1/04 ,  A61B1/00 ,  A61B1/05 ,  G02B23/24 ,  G06T5/20 ,  H04N5/225 ,  H04N5/268 ,  H04N7/10

CPC classification number: H04N5/37455 ,  A61B1/00009 ,  A61B1/00112 ,  A61B1/04 ,  A61B1/05 ,  G02B23/2484 ,  G06T5/20 ,  H04N5/2253 ,  H04N5/268 ,  H04N7/10 ,  H04N7/183 ,  H04N2005/2255

Abstract: An endoscope is an endoscope connectable to a processor provided with a high frequency component enhancement circuit configured to perform, for an image pickup signal having an attenuated high frequency component, enhancement correction of the high frequency component, the endoscope including: a CMOS image sensor provided with an image pickup portion configured to pick up an optical image of a subject and generate an analog image pickup signal and an A/D converting portion configured to convert the analog image pickup signal to a digital image pickup signal and output the digital image pickup signal; a cable for transmitting the digital image pickup signal; and a filter having frequency characteristics equalizing frequency characteristics of the high frequency component enhancement circuit.

公开(公告)号：US11877046B2

公开(公告)日：2024-01-16

申请号：US17136359

申请日：2020-12-29

Applicant: OLYMPUS CORPORATION

Inventor： Yasunori Matsui

IPC: H04N23/60 ,  A61B1/045 ,  H04N5/06 ,  A61B1/00 ,  G02B23/24 ,  H04N23/667 ,  H04N23/50

CPC classification number: H04N23/60 ,  A61B1/000095 ,  A61B1/045 ,  G02B23/24 ,  H04N5/06 ,  H04N23/667 ,  H04N23/555

Abstract: An endoscope includes: an imaging controller configured to drive in a first operation mode for operating an imager in accordance with an input first clock signal or in a second operation mode for operating the imager in accordance with an input second clock signal different from the first clock signal; a switch configured to output, to the imaging controller, a switching signal for switching the previously set second operation mode to be driven by the imaging controller to the first operation mode; and a first generator configured to generate a first enable signal causing the switch to output the switching signal based on the first clock signal when the first clock signal is input from an external processing device, and output the generated first enable signal to the switch.

公开(公告)号：US10653304B2

公开(公告)日：2020-05-19

申请号：US16161218

申请日：2018-10-16

Applicant: OLYMPUS CORPORATION

Inventor： Yasunori Matsui ,  Shinji Yamashita ,  Yuzuru Tanabe ,  Yuta Matsuno

IPC: A61B1/045 ,  A61B1/06 ,  A61B1/07 ,  G02B23/24 ,  G02B23/26 ,  A61B1/00

Abstract: An endoscope includes: an illuminator configured to guide illumination light from a light source capable of emitting the illumination light intermittently and apply the illumination light to an object; an imaging element including a light receiver where multiple pixels configured to receive light and perform photoelectric conversion to generate electric signals are arranged in a two-dimensional matrix, and a reader configured to sequentially read the electric signals per horizontal line from each of the multiple pixels; a generator configured to, based on a first vertical synchronization signal that is input from an external processor and reference timing of exposure of the imaging element with the illumination light, generate a second vertical synchronization signal for controlling timing at which the reader reads the electric signal; and an imaging controller configured to cause the reader to read the electric signals sequentially according to the second vertical synchronization signal.

公开(公告)号：US09895047B2

公开(公告)日：2018-02-20

申请号：US15479838

申请日：2017-04-05

Applicant: OLYMPUS CORPORATION

Inventor： Yuzuru Tanabe ,  Shinji Yamashita ,  Yasunori Matsui ,  Yuta Matsuno

IPC: A62B1/04 ,  H04N9/47 ,  H04N7/18 ,  A61B1/00 ,  A61B1/04 ,  A61B1/06 ,  G02B23/24 ,  H04N5/232 ,  H04N5/243 ,  H04N5/374 ,  H04N5/367 ,  H04N5/225

CPC classification number: A61B1/00009 ,  A61B1/00006 ,  A61B1/0002 ,  A61B1/00045 ,  A61B1/00059 ,  A61B1/04 ,  A61B1/045 ,  A61B1/05 ,  A61B1/0676 ,  G02B23/24 ,  G02B23/2484 ,  H04N5/232 ,  H04N5/23245 ,  H04N5/243 ,  H04N5/357 ,  H04N5/367 ,  H04N5/374 ,  H04N7/18 ,  H04N2005/2255

Abstract: An image pickup apparatus includes a solid state image pickup device including a plurality of pixels with a photoelectric conversion element, a transfer section, an electric charge conversion section, a reset section, an operation mode control section configured to switch a first operation mode in which the reset section and the transfer section are turned off, and a second operation mode in which the reset section is turned off, and the transfer section is turned on, a black level correction section, and a memory, and transfers a synchronous signal for outputting an image signal from the solid state image pickup device, and a control signal for causing the solid state image pickup device to operate in the first operation mode and the second operation mode respectively by using a common signal line.

公开(公告)号：US20210113074A1

公开(公告)日：2021-04-22

申请号：US17136359

申请日：2020-12-29

Applicant: OLYMPUS CORPORATION

Inventor： Yasunori Matsui

IPC: A61B1/045 ,  H04N5/232

Abstract: An endoscope includes: an imaging controller configured to drive in a first operation mode for operating an imager in accordance with an input first clock signal or in a second operation mode for operating the imager in accordance with an input second clock signal different from the first clock signal; a switch configured to output, to the imaging controller, a switching signal for switching the previously set second operation mode to be driven by the imaging controller to the first operation mode; and a first generator configured to generate a first enable signal causing the switch to output the switching signal based on the first clock signal when the first clock signal is input from an external processing device, and output the generated first enable signal to the switch.

公开(公告)号：US10667676B2

公开(公告)日：2020-06-02

申请号：US16220739

申请日：2018-12-14

Applicant: OLYMPUS CORPORATION

Inventor： Yasunori Matsui ,  Shinji Yamashita ,  Yuzuru Tanabe ,  Yuta Matsuno

IPC: H04N5/20 ,  A61B1/05 ,  A61B1/045 ,  H04N7/18 ,  A61B1/00 ,  A61B90/30 ,  A61B1/06 ,  H04N5/225

Abstract: An electronic endoscope removably connected to a video processor in which a predetermined gamma characteristic is set includes: an image pickup device provided at a distal end of an insertion portion configured to be inserted into a subject, the image pickup device being configured to pick up an optical image of the subject to generate an image pickup signal; a gain circuit configured to amplify the image pickup signal using a predetermined gain parameter; a gamma characteristic recognition circuit configured to recognize the gamma characteristic of the video processor; and a gain adjustment circuit configured to set the gain parameter according to the gamma characteristic.

公开(公告)号：US10484626B2

公开(公告)日：2019-11-19

申请号：US15678259

申请日：2017-08-16

Applicant: OLYMPUS CORPORATION

Inventor： Yasunori Matsui ,  Shinji Yamashita ,  Yuzuru Tanabe ,  Yuta Matsuno

IPC: H04N5/365 ,  H04N5/378 ,  A61B1/04 ,  H04N5/351 ,  G02B23/24 ,  A61B1/00 ,  A61B1/045

Abstract: A gain adjustment unit calculates a total sum of analog gains on a way from photoelectric conversion output of an image pickup device to input of an analog/digital conversion circuit with use of picked-up images provided from the analog/digital conversion circuit, the analog/digital conversion circuit being configured to convert an output of an analog processing section into a digital signal, the analog processing section being configured to transmit and amplify an image pickup signal from the image pickup device, the image pickup device being provided at an insertion portion of an endoscope, and determines, as an adjustment gain, a difference between a target value of a total sum of gains and the total sum of the analog gains, and output information.

公开(公告)号：US10441135B2

公开(公告)日：2019-10-15

申请号：US15446559

申请日：2017-03-01

Applicant: OLYMPUS CORPORATION

Inventor： Yasunori Matsui ,  Shinji Yamashita ,  Yuzuru Tanabe ,  Yuta Matsuno

IPC: A61B1/00 ,  A61B1/04 ,  A61B1/06 ,  A61B1/018 ,  A61B1/045 ,  A61B18/20 ,  A61B18/00

Abstract: An endoscope system includes an endoscope, an illumination portion, a light adjustment portion, an insertion channel configured to allow insertion of a laser probe capable of radiating an aiming monochromatic laser beam, a gain control portion, a halation detection portion, and a control portion, and in a case that halation by the aiming monochromatic laser beam is detected in the halation detection portion, the control portion controls the light adjustment portion to adjust the illumination light and controls the gain control portion to control the gain.

公开(公告)号：US09888836B2

公开(公告)日：2018-02-13

申请号：US15214500

申请日：2016-07-20

Applicant: OLYMPUS CORPORATION

Inventor： Fumiyuki Okawa ,  Hidenori Hashimoto ,  Yasunori Matsui

IPC: A61B1/04 ,  A61B1/05 ,  H04N5/341 ,  H04N5/361 ,  H04N5/374 ,  H04N5/378 ,  A61B1/00 ,  G02B23/24 ,  H04N5/376 ,  H04N5/225

CPC classification number: A61B1/051 ,  A61B1/00009 ,  A61B1/04 ,  G02B23/2484 ,  H04N5/341 ,  H04N5/361 ,  H04N5/374 ,  H04N5/3765 ,  H04N5/378 ,  H04N2005/2255

Abstract: An endoscope includes: a CMOS image sensor including only a vertical OB pixel region as an optical black pixel region, and a horizontal OB pixel region generation processing section that reads a photoelectric conversion signal generated in an effective pixel region in the CMOS image sensor and an OB signal generated in the vertical OB pixel region, adds the OB signal generated in the vertical OB pixel region to the beginning or end of each row of the photoelectric conversion signal which has been generated in the effective pixel region and read out for each row, and outputs a signal to which the OB signal is added.

公开(公告)号：US09876997B2

公开(公告)日：2018-01-23

申请号：US15493774

申请日：2017-04-21

Applicant: OLYMPUS CORPORATION

Inventor： Takayuki Hanawa ,  Shinji Yamashita ,  Yasunori Matsui ,  Yuzuru Tanabe

IPC: A61B1/00 ,  H04N9/04 ,  A61B1/05 ,  H04N5/378 ,  H04N5/363 ,  H04N9/64

CPC classification number: H04N9/045 ,  A61B1/00009 ,  A61B1/00186 ,  A61B1/045 ,  A61B1/05 ,  G02B23/2484 ,  H04N5/363 ,  H04N5/3658 ,  H04N5/37457 ,  H04N5/378 ,  H04N9/07 ,  H04N9/64 ,  H04N2005/2255

Abstract: An endoscope includes: an image sensor including: pixels for receiving light to generate image signals, and reading circuits sharing predetermined number of pixels with one another; a format converter configured to convert the image signals output from the image sensor into a predetermined format corresponding to a processing device for performing image processing on the image signals; and a connector including the format converter and configured to be connected to the processing device. The image sensor includes a color filter of a Bayer array in which a red filter for passing a red component and a first green filter for passing a green component are alternately arranged in even lines of horizontal lines of the pixels, and a second green filter for passing a green component and a blue filter for passing a blue component are alternately arranged in odd lines of the horizontal lines.