公开(公告)号：US20170208275A1

公开(公告)日：2017-07-20

申请号：US15479338

申请日：2017-04-05

Applicant: OLYMPUS CORPORATION

Inventor： Ryohei KAGAWA ,  Hidetsugu TAKAHASHI ,  Manabu ISHIZEKI ,  Hidetaro KONO

IPC: H04N5/374 ,  H03K19/177 ,  H04N5/38 ,  A61B1/04 ,  G02B23/24

CPC classification number: H04N5/374 ,  A61B1/04 ,  G02B23/24 ,  G02B23/2484 ,  G06F3/00 ,  G06F13/38 ,  H03K19/17748 ,  H04L5/18 ,  H04L29/08 ,  H04N5/38

Abstract: A communication system includes: a first signal line; a second signal line; a first signal line selection portion and a second signal line selection portion for selecting either one of the first signal line and the second signal line so as to be effective as the serial data; and a signal control portion for outputting a signal direction switching signal for controlling a selecting operation. The first signal line selection portion includes a first OR circuit and a first three-state buffer circuit provided on the first signal line, and a first buffer provided on the second signal line, and the second signal line selection portion includes a second OR circuit and a second three-state buffer circuit provided on the second signal line, a second buffer provided on the first signal line, and an inverter circuit provided between a terminal of the signal control portion and the second OR circuit.

公开(公告)号：US20170238791A1

公开(公告)日：2017-08-24

申请号：US15590461

申请日：2017-05-09

Applicant: OLYMPUS CORPORATION

Inventor： Ryohei KAGAWA

IPC: A61B1/06 ,  A61B1/00

Abstract: An endoscope system includes: a light source device for sequentially emitting illumination light of three colors; an image sensor having pixels to perform photoelectric conversion on light from an object irradiated with the illumination light and output image signals; an illumination controller for causing the light source device to emit the illumination light of two colors during a one-line exposure period of the image sensor; and a calculation unit for calculating each color component signal for each horizontal line, based on a relational expression using an output value of a horizontal line, among output values of the image signals in a latest frame, a frame located one frame before the latest frame, and a frame located two frames before the latest frame, using each illumination period per one-line exposure period of each color in each frame, and using each exposure period of each color with respect to the horizontal line.

公开(公告)号：US20200345222A1

公开(公告)日：2020-11-05

申请号：US16932891

申请日：2020-07-20

Applicant: OLYMPUS CORPORATION

Inventor： Manabu ISHIZEKI ,  Ryohei KAGAWA

IPC: A61B1/05 ,  H04N5/235 ,  A61B1/00

Abstract: An imaging system includes: a light source configured to emit illumination light; an imager configured to store an electric charge corresponding to an amount of received light and read out the stored electric charge as a signal value by using a rolling shutter method; a frequency detector configured to detect a vibrational frequency of a predetermined site of a subject; and an illumination controller configured to control emission of the illumination light during a readout period of the signal value. The illumination controller is configured to set a phrase for an emission timing of the illumination light in an exposure period during which the imager stores the electric charge to be an identical phase at the frequency in each frame, and refer to respective phases set in exposure periods of chronologically adjacent frames to set an emission timing of the illumination light in the readout period.

公开(公告)号：US20170281045A1

公开(公告)日：2017-10-05

申请号：US15625265

申请日：2017-06-16

Applicant: OLYMPUS CORPORATION

Inventor： Ryohei KAGAWA

IPC: A61B5/06 ,  A61B1/05 ,  A61B1/045 ,  A61B1/06

CPC classification number: A61B5/061 ,  A61B1/045 ,  A61B1/05 ,  A61B1/06 ,  A61B1/0661 ,  A61B5/682 ,  A61B7/003 ,  A61B2562/0204

Abstract: An endoscope system includes: a light source for emitting pulsed light; an endoscope device having an image sensor for capturing images of an inside of a subject in accordance with timing for generating the pulsed light; a processing device for controlling the light source and the endoscope device; first and second microphones configured to collect sound and connected to the processing device; a holding member for holding the first and second microphones at a location separated from the subject; and an acquisition unit configured to acquire positional relationships between the first microphone, the second microphone, and the subject. The processing device is configured to: extract a vibrational frequency of first sound emitted by the subject from the sound collected by the first and second microphones, based on the positional relationships; and control the light source to generate the pulsed light in accordance with the vibrational frequency of the first sound.

公开(公告)号：US20170064178A1

公开(公告)日：2017-03-02

申请号：US15351527

申请日：2016-11-15

Applicant: OLYMPUS CORPORATION

Inventor： Ryohei KAGAWA ,  Kotaro OGASAWARA

IPC: H04N5/235 ,  A61B1/00 ,  G02B23/24 ,  H04N5/374 ,  H04N5/372 ,  A61B1/05 ,  H04N5/225

CPC classification number: H04N5/2353 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/00096 ,  A61B1/04 ,  A61B1/045 ,  A61B1/05 ,  A61B1/2673 ,  G02B23/2446 ,  G02B23/2469 ,  G02B23/2484 ,  G03B7/093 ,  H04N5/225 ,  H04N5/2256 ,  H04N5/2354 ,  H04N5/2357 ,  H04N5/243 ,  H04N5/3532 ,  H04N5/372 ,  H04N5/374 ,  H04N5/378 ,  H04N2005/2255

Abstract: A processing device includes a signal processing unit configured to: input first and second pixel signals from an image sensor having pixels for receiving light from a subject illuminated with pulsed light and generating a pixel signal, the first pixel signal being a one-frame signal read at read timing at least a part of which is included in an illumination period of the pulsed light, the second pixel signal being a one-frame signal read after the one frame of the first pixel signal; and generate a one-frame third pixel signal by synthesizing first and second overlap pixel signals, the first overlap pixel signal being defined as the first pixel signal corresponding to an overlap line of the pixels in which the illumination period of the pulsed light is overlapped with the read timing, the second overlap pixel signal being defined as the second pixel signal corresponding to the overlap line.

Abstract translation: 一种处理装置，包括：信号处理单元，被配置为：从具有用于接收来自被照明的对象的光的像素的图像传感器输入第一和第二像素信号并生成像素信号，所述第一像素信号是一帧信号读取 在读取时刻，其至少一部分被包括在脉冲光的照明周期中，第二像素信号是在第一像素信号的一帧之后读取的一帧信号; 并且通过合成第一和第二重叠像素信号来生成一帧第三像素信号，所述第一重叠像素信号被定义为与脉冲光的照明周期重叠的像素的重叠线对应的第一像素信号 读取定时，第二重叠像素信号被定义为对应于重叠线的第二像素信号。