公开(公告)号：US20170278534A1

公开(公告)日：2017-09-28

申请号：US15504051

申请日：2014-08-15

Applicant: THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA ,  HITACHI, LTD.

Inventor： Toshiki ISHII ,  Yuzuru TAKASHIMA

IPC: G11B7/0065 ,  G11B7/13 ,  G11B7/007

CPC classification number: G11B7/0065 ,  G03H1/0486 ,  G03H2001/0491 ,  G11B7/00772 ,  G11B7/08564 ,  G11B7/13

Abstract: An optical information recording apparatus and method thereof for recording information in a holographic medium. The apparatus includes a laser source which generates a reference beam and a signal beam to record the information in the holographic medium, a sensor which detects a vibrational amplitude over a time period applied to the optical information processing apparatus for recording the information, an operational circuit which calculates from the vibrational amplitude at least one statistical measure of the vibrational amplitude; and a processor programmed to control a recording mode such that the processor evaluates the calculated statistical measure to determine continuation of a recording operation to the holographic medium.

公开(公告)号：US20220019399A1

公开(公告)日：2022-01-20

申请号：US17490239

申请日：2021-09-30

Applicant: HITACHI, LTD.

Inventor： Chiyo OHNO ,  Naohito IKEDA ,  Toshiki ISHII ,  Satoshi OUCHI ,  Taku HOSHIZAWA

IPC: G06F3/14 ,  G06K9/00 ,  G06F3/01 ,  G06F3/0485

Abstract: Provided is a remote work-support system including a first display device to be worn on a first user working at a work site, a surrounding imaging device disposed on the work site, and an information processing device provided at a predetermined spot, configured to be communicable with the first display device and the surrounding imaging device, and operated by a second user. The first display device includes a first communication unit transmitting first image data to the information processing device. The surrounding imaging device includes a second communication unit transmitting second image data to the information processing device. The information processing device includes second display devices displaying the first and second image data, an operation unit through which data is input, and a third communication unit transmitting data input by the second user through the operation unit to the first display device.

公开(公告)号：US20210006771A1

公开(公告)日：2021-01-07

申请号：US16910992

申请日：2020-06-24

Applicant: HITACHI, LTD.

Inventor： Kazuyoshi YAMAZAKI ,  Toshiki ISHII

IPC: H04N13/207 ,  G02B17/06 ,  H04N5/225 ,  B60Q1/00

Abstract: A first mirror has a first reflecting surface convexed in a first direction, a first apex, and a first fan shape. A second mirror has a second reflecting surface convexed in a second direction, a second apex, and a second fan shape. An imaging optical system forms images from a first light emitted from an object, reflected by the first reflecting surface, and subsequently further reflected by the second reflecting surface, and a second light emitted from the object and reflected by the second reflecting surface. The first and second fan shapes have interior angles of 180° or more. A center position of the image sensor is displaced with respect to an optical axis of the imaging optical system. A short side of a photo-receiving surface of the image sensor and a center line of the image of the first or second fan shape are approximately parallel.

公开(公告)号：US20210004195A1

公开(公告)日：2021-01-07

申请号：US16910746

申请日：2020-06-24

Applicant: HITACHI, LTD.

Inventor： Chiyo OHNO ,  Naohito IKEDA ,  Toshiki ISHII ,  Satoshi OUCHI ,  Taku HOSHIZAWA

IPC: G06F3/14 ,  G06F3/0485 ,  G06F3/01 ,  G06K9/00

Abstract: Provided is a remote work-support system including a first display device to be worn on a first user working at a work site, a surrounding imaging device disposed on the work site, and an information processing device provided at a predetermined spot, configured to be communicable with the first display device and the surrounding imaging device, and operated by a second user. The first display device includes a first communication unit transmitting first image data to the information processing device. The surrounding imaging device includes a second communication unit transmitting second image data to the information processing device. The information processing device includes second display devices displaying the first and second image data, an operation unit through which data is input, and a third communication unit transmitting data input by the second user through the operation unit to the first display device.