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公开(公告)号：US20190038121A1
公开(公告)日：2019-02-07
申请号：US16154798
申请日：2018-10-09
Applicant: OLYMPUS CORPORATION
Inventor： Sho NAKAMURA
Abstract: An endoscope includes a sensor, and a temperature compensation circuit configured to perform temperature compensation of an output signal of the sensor, in a distal end portion. The temperature compensation circuit includes a differential amplifying section configured to amplify an output signal of the sensor, and a temperature sensing section in which a resistance is connected in series to a parallel connection portion of a temperature sensing element and a resistance.
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公开(公告)号：US20200268233A1
公开(公告)日：2020-08-27
申请号：US16780774
申请日：2020-02-03
Applicant: OLYMPUS CORPORATION
Inventor： Masanori SHIMOYAMA , Rintaro NISHIHARA , Sho NAKAMURA
IPC: A61B1/00
Abstract: An endoscope system includes an endoscope having a position/angle sensor and an amplifying circuit, a memory configured to store output error sensitivity data and a first wiring resistance value, and a processor including a signal processing circuit configured to process an output signal from the amplifying circuit. The signal processing circuit corrects an error of the output signal based on a value obtained by multiplying a difference between the first wiring resistance value and a processor wiring resistance value by the output error sensitivity data.
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公开(公告)号：US20210100427A1
公开(公告)日：2021-04-08
申请号：US17124773
申请日：2020-12-17
Applicant: OLYMPUS CORPORATION
Inventor： Sho NAKAMURA
IPC: A61B1/00
Abstract: An endoscope apparatus includes an endoscope having a lens, an actuator, and an endoscope memory, and a processor having a driving circuit and a processor memory and connected to the endoscope. The processor judges whether there is abnormality or not in at least one of the actuator or the driving circuit by using information on a signal transmitted from the driving circuit to the actuator, first judgement information read from the endoscope memory, and second judgement information read from the processor memory.
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公开(公告)号：US20200037849A1
公开(公告)日：2020-02-06
申请号：US16654090
申请日：2019-10-16
Applicant: OLYMPUS CORPORATION
Inventor： Tadashi ITO , Sho NAKAMURA
Abstract: The endoscope apparatus includes an endoscope and a video processor. The endoscope apparatus has a voice coil motor provided in a distal end portion of an insertion portion of the endoscope and having a coil with a resistance component, and a signal wire inserted into the insertion portion and connected to both ends of the coil, detects at least one value of a current supplied to the signal wire and a voltage applied to the signal wire, calculates power consumption of the coil from the at least one value detected and resistance value information of the resistance component, and executes a predetermined process based on the calculated power consumption of the coil and power consumption threshold information.
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公开(公告)号：US20180049621A1
公开(公告)日：2018-02-22
申请号：US15730926
申请日：2017-10-12
Applicant: OLYMPUS CORPORATION
Inventor： Takehiko IGUCHI , Takeshi SAITO , Sho NAKAMURA
CPC classification number: A61B1/0019 , A61B1/00009 , A61B1/00096 , G02B23/243 , H04N2005/2255
Abstract: An optical unit includes: a fixed portion configured to hold at least one of an object side fixed lens group and an image side fixed lens group; a movable portion configured to hold a movable lens group between the object side fixed lens group and the image side fixed lens group; and a voice coil motor configured to relatively move the movable portion with respect to the fixed portion in a direction of a central axis, the voice coil motor including a coil arranged on the fixed portion, and magnets magnetically polarized in directions orthogonal to the central axis and substantially symmetrical with respect to the central axis. At least two magnets adjacent to each other in a circumferential direction in a cross section orthogonal to the central axis are arranged so as to be shifted in opposite directions in a circumferential direction.
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Patent Agency Ranking
公开(公告)号：US20180031800A1
公开(公告)日：2018-02-01
申请号：US15730827
申请日：2017-10-12
Applicant: OLYMPUS CORPORATION
Inventor： Takehiko IGUCHI , Takeshi SAITO , Sho NAKAMURA
Abstract: An optical unit includes: a cylindrical fixing member configured to retain at least one of an object-side fixed lens group and an image-side fixed lens group; a cylindrical movable member configured to retain a movable lens group between the groups and arranged on a radial-direction inner side of the fixing member slidablly with respect to the fixing member, the cylindrical movable member having a same central axis as the cylindrical fixing member; a voice coil motor including: a coil arranged in the fixing member; and magnets arranged on the movable member and magnetically polarized in a direction intersecting with the central axis, the voice coil motor being capable of moving the movable member relative to the fixing member along a direction of the central axis; and a rotation restricting member configured to restrict rotation of the movable member about the central axis with respect to the fixing member.
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公开(公告)号：US20210212551A1
公开(公告)日：2021-07-15
申请号：US17218761
申请日：2021-03-31
Applicant: OLYMPUS CORPORATION
Inventor： Sho NAKAMURA
Abstract: A power supply apparatus for an endoscope includes a plurality of power supply circuits, a plurality of power changeover switches, and a power control circuit. The power control circuit performs an operation to determine, when one power changeover switch provided on one power supply line connecting one power supply circuit of the plurality of power supply circuits and one electronic part of the plurality of electronic parts in each order of the power-on sequence is set to off, whether an output voltage of the one power supply circuit is normal or not and an operation to start a supply of one drive voltage required to drive the one electronic part according to a judgement result that the output voltage of the one power supply circuit is normal.
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公开(公告)号：US20200174245A1
公开(公告)日：2020-06-04
申请号：US16693217
申请日：2019-11-22
Applicant: OLYMPUS CORPORATION
Inventor： Rintaro NISHIHARA , Sho NAKAMURA
IPC: G02B23/24 , H02K41/035 , A61B1/00 , A61B5/06
Abstract: An endoscope system includes an endoscope in which an actuator moves a movable lens and a position sensor outputs a position detection signal, and a processor including a driver circuit configured to drive the actuator and a driving control circuit configured to subject a deviation of the position detection signal to first correction based on individual processor correction data stored in a processor memory and controls the driver circuit based on a target position and the position detection signal subjected to the first correction.
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公开(公告)号：US20190133422A1
公开(公告)日：2019-05-09
申请号：US16241212
申请日：2019-01-07
Applicant: OLYMPUS CORPORATION
Inventor： Sho NAKAMURA
Abstract: An endoscope apparatus includes an endoscope including an observation optical system including a lens drive mechanism and a video processor connected to the endoscope, and the endoscope apparatus includes a voice coil motor provided in the endoscope and configured to drive a lens relating to the lens drive mechanism and a position detecting apparatus provided in the endoscope and configured to detect a position of the lens. The video processor is configured to determine whether or not the position detecting apparatus is in a heat generating state, and halt actuation of the position detecting apparatus if the video processor determines that the position detecting apparatus is in the heat generating state.
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公开(公告)号：US20190089920A1
公开(公告)日：2019-03-21
申请号：US16192944
申请日：2018-11-16
Applicant: OLYMPUS CORPORATION
Inventor： Sho NAKAMURA
Abstract: An endoscope apparatus includes an endoscope including a cable and a sensor and a processor. The endoscope includes a differential amplifying section configured to differentially amplify an output signal from the sensor. The processor includes a power supply circuit configured to generate a reference voltage supplied to the differential amplifying section. The reference voltage generated by the power supply circuit of the processor is supplied to the differential amplifying section of the endoscope via the cable. An output signal of the differential amplifying section is detected by the processor via the cable.
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