Patents by Inventor Yoshihiko Hotta

Yoshihiko Hotta 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: 11294835
    Abstract: A semiconductor device includes a first master and a second master configured to issue requests for accessing to a memory, a first request issuing controller coupled to the first master, and configured to hold the request issued from the first master, a second request issuing controller coupled to the second master, and configured to hold the request issued from the second master, a bus arbiter coupled to the first request issuing controller and the second request issuing controller, a memory controller coupled to the bus arbiter, and including a buffer configured to store the requests issued from the first master and the second master, and a central bus controller configured to grant access rights to the first request issuing controller and the second request issuing controller based on space information of the buffer.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: April 5, 2022
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Sho Yamanaka, Toshiyuki Hiraki, Yoshihiko Hotta, Takahiro Irita
  • Publication number: 20210141749
    Abstract: Access control is achieved in consideration of write training. Masters issue access requests including a read request and a write request. A memory controller accesses memory in response to the access requests issued by the maters. A central bus-control system controls the output of the access requests issued by the masters to the memory controller. A training circuit conducts training on the memory while the access to the memory is stopped. The central bus-control system further controls the execution of the training on the memory. During the training, the central bus-control system suppresses the output of the read request to the memory controller from among the access requests issued by the masters.
    Type: Application
    Filed: January 15, 2021
    Publication date: May 13, 2021
    Inventors: Katsuya MIZUMOTO, Toshiyuki HIRAKI, Nobuhiko HONDA, Sho YAMANAKA, Takahiro IRITA, Yoshihiko HOTTA
  • Patent number: 10960682
    Abstract: An image recording apparatus includes: a laser emitting device configured to emit laser beams emitted from a plurality of laser light-emitting elements; an optical fiber array including a plurality of optical fibers provided corresponding to the laser light-emitting elements and configured to guide the laser beams emitted from the laser light-emitting elements to a recording object that relatively moves with respect to the laser emitting device, laser emitting portions of the respective optical fibers being arrayed in an array form in a predetermined direction; and an image recording unit configured to control the laser emitting device so as to irradiate the recording object which relatively moves with respect to the laser emitting device in a direction different from the predetermined direction, with laser beams via the optical fiber array, to heat the recording object and record an image.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: March 30, 2021
    Assignee: RICOH COMPANY, LTD.
    Inventors: Kazuyuki Uetake, Yoshihiko Hotta, Ichiro Sawamura, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 10929317
    Abstract: Access control is achieved in consideration of write training. Masters issue access requests including a read request and a write request. A memory controller accesses memory in response to the access requests issued by the maters. A central bus-control system controls the output of the access requests issued by the masters to the memory controller. A training circuit conducts training on the memory while the access to the memory is stopped. The central bus-control system further controls the execution of the training on the memory. During the training, the central bus-control system suppresses the output of the read request to the memory controller from among the access requests issued by the masters.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: February 23, 2021
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Katsuya Mizumoto, Toshiyuki Hiraki, Nobuhiko Honda, Sho Yamanaka, Takahiro Irita, Yoshihiko Hotta
  • Publication number: 20210026788
    Abstract: A semiconductor device includes a first master and a second master configured to issue requests for accessing to a memory, a first request issuing controller coupled to the first master, and configured to hold the request issued from the first master, a second request issuing controller coupled to the second master, and configured to hold the request issued from the second master, a bus arbiter coupled to the first request issuing controller and the second request issuing controller, a memory controller coupled to the bus arbiter, and including a buffer configured to store the requests issued from the first master and the second master, and a central bus controller configured to grant access rights to the first request issuing controller and the second request issuing controller based on space information of the buffer.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Inventors: Sho YAMANAKA, Toshiyuki HIRAKI, Yoshihiko HOTTA, Takahiro IRITA
  • Patent number: 10831683
    Abstract: A semiconductor device according to the present invention includes a plurality of masters (100), a memory controller (400a), a bus that connects the plurality of masters (100) and the memory controller (400a), a QoS information register (610) that stores QoS information of the plurality of masters (100), a right grant number controller (602) that calculates the number of grantable access rights based on space information of a buffer (401) of the memory controller (400a), a right grant selection controller (603a) that selects the master (100) which will be granted the access right based on the QoS information of the QoS information register (610) and the number of grantable rights from the right grant number controller (602), and a request issuing controller (201a) that does not pass a request of the master (100) which has not been granted the access right from the right grant selection controller (603a).
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 10, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Sho Yamanaka, Toshiyuki Hiraki, Yoshihiko Hotta, Takahiro Irita
  • Patent number: 10792932
    Abstract: An image recording apparatus that irradiates a recording target with laser light and records an image thereon, that includes: a laser irradiation device that has plural laser emitting elements, and irradiates the recording target with laser light emitted from the plural laser emitting elements; an irradiation condition adjusting unit that causes the laser irradiation device to emit laser light such that a part of an image dot recorded on the recording target moving relatively to the laser irradiation device overlaps an image dot adjacent thereto, and makes a laser irradiation condition for when image dots forming a boundary between a colored portion and a non-colored portion are recorded, different from a laser irradiation condition for when the other image dots are recorded; and an output control unit that controls the irradiation with the laser light, based on the laser irradiation condition adjusted by the irradiation condition adjusting unit.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: October 6, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ichiro Sawamura, Yoshihiko Hotta, Kazuyuki Uetake, Takahiro Furukawa, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 10780710
    Abstract: Recording method including emitting laser light from optical fiber array to record image formed of writing units with moving recording target and the optical fiber array relatively using recording device including laser light-emitting elements and emitting unit including the optical fiber array where optical fibers configured to guide laser light emitted from the laser light-emitting elements are aligned, wherein the image includes convex-concave shapes formed by aligning convex portions relative to, as standard, vertical line to the writing units where the vertical line includes the nearest contact points at endmost side of the image in sub-scanning direction where the image is formed by overlapping or adjoining at least part of the writing units in main-scanning direction and satisfies formula below: T?0.4X where T is average height of the convex portions and X is minimum distance between centers of the adjacent writing units in the image.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: September 22, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyuki Uetake, Yoshihiko Hotta, Ichiro Sawamura, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 10589543
    Abstract: An image recording apparatus includes a plurality of laser emission parts disposed side by side in a predetermined direction for emitting laser light; an optical system configured to collect a plurality of beams of laser light emitted by the laser emission parts onto the recording target moving relative to the laser emission parts in a direction crossing the predetermined direction; and an output control unit configured to perform control such that energy of laser light emitted from an outermost end laser emission part of the laser emission parts is greater than energy of laser light emitted from a center laser emission part, the outermost end laser emission part emitting laser light to be transmitted through vicinity of an end portion of the optical system, the center laser emission part emitting laser light to be transmitted through a portion other than vicinity of the end portion of the optical system.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: March 17, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ichiro Sawamura, Yoshihiko Hotta, Kazuyuki Uetake, Takahiro Furukawa, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 10556446
    Abstract: An image recording device includes a laser irradiation device that emits laser lights output from a plurality of laser light emitting elements to different positions in a predetermined direction; and an image recording unit that controls the laser irradiation device to irradiate a recording object moving relative to the laser irradiation device in a direction different from the predetermined direction with laser so as to heat the object, form image dots, and record an image. The image recording unit controls the laser irradiation device, conducts recording such that at least one of the image dots, recorded alongside at different positions in a direction perpendicular to a relative moving direction of the object, is shifted relative to other ones of the image dots in the relative moving direction, and records a solid image on the object such that the image dot is partially overlapped with all adjacent image dots.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: February 11, 2020
    Assignee: RICOH COMPANY, LTD.
    Inventors: Ichiro Sawamura, Yoshihiko Hotta, Kazuyuki Uetake, Tomomi Ishimi, Yasuroh Yokota
  • Patent number: 10449782
    Abstract: Recording method including emitting laser light from optical fiber array to record image formed of writing units with moving recording target and the optical fiber array relatively using recording device including laser light-emitting elements and emitting unit including the optical fiber array where optical fibers for guiding laser light from the laser light-emitting elements are aligned wherein (A?D/A?C) that is ratio of length of diagonal line A?D to length of diagonal line A?C in the image formed in a manner that at least part of the writing units are overlapped one another in the main-scanning direction is 1.05 or greater.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 22, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kazuyuki Uetake, Yoshihiko Hotta, Ichiro Sawamura, Tomomi Ishimi, Yasuroh Yokota
  • Publication number: 20190057052
    Abstract: A semiconductor device according to the present invention includes a plurality of masters (100), a memory controller (400a), a bus that connects the plurality of masters (100) and the memory controller (400a), a QoS information register (610) that stores QoS information of the plurality of masters (100), a right grant number controller (602) that calculates the number of grantable access rights based on space information of a buffer (401) of the memory controller (400a), a right grant selection controller (603a) that selects the master (100) which will be granted the access right based on the QoS information of the QoS information register (610) and the number of grantable rights from the right grant number controller (602), and a request issuing controller (201a) that does not pass a request of the master (100) which has not been granted the access right from the right grant selection controller (603a).
    Type: Application
    Filed: October 19, 2018
    Publication date: February 21, 2019
    Inventors: Sho YAMANAKA, Toshiyuki Hiraki, Yoshihiko Hotta, Takahiro Irita
  • Publication number: 20190004983
    Abstract: Access control is achieved in consideration of write training. Masters issue access requests including a read request and a write request. A memory controller accesses memory in response to the access requests issued by the maters. A central bus-control system controls the output of the access requests issued by the masters to the memory controller. A training circuit conducts training on the memory while the access to the memory is stopped. The central bus-control system further controls the execution of the training on the memory. During the training, the central bus-control system suppresses the output of the read request to the memory controller from among the access requests issued by the masters.
    Type: Application
    Filed: June 5, 2018
    Publication date: January 3, 2019
    Inventors: Katsuya Mizumoto, Toshiyuki Hiraki, Nobuhiko Honda, Sho Yamanaka, Takahiro Irita, Yoshihiko Hotta
  • Publication number: 20180339524
    Abstract: An image recording apparatus that irradiates a recording target with laser light and records an image thereon, that includes: a laser irradiation device that has plural laser emitting elements, and irradiates the recording target with laser light emitted from the plural laser emitting elements; an irradiation condition adjusting unit that causes the laser irradiation device to emit laser light such that a part of an image dot recorded on the recording target moving relatively to the laser irradiation device overlaps an image dot adjacent thereto, and makes a laser irradiation condition for when image dots forming a boundary between a colored portion and a non-colored portion are recorded, different from a laser irradiation condition for when the other image dots are recorded; and an output control unit that controls the irradiation with the laser light, based on the laser irradiation condition adjusted by the irradiation condition adjusting unit.
    Type: Application
    Filed: August 1, 2018
    Publication date: November 29, 2018
    Inventors: Ichiro SAWAMURA, Yoshihiko Hotta, Kazuyuki Uetake, Takahiro Furukawa, Tomomi Ishimi, Yasuroh Yokota
  • Publication number: 20180333967
    Abstract: Recording method including emitting laser light from optical fiber array to record image formed of writing units with moving recording target and the optical fiber array relatively using recording device including laser light-emitting elements and emitting unit including the optical fiber array where optical fibers configured to guide laser light emitted from the laser light-emitting elements are aligned, wherein the image includes convex-concave shapes formed by aligning convex portions relative to, as standard, vertical line to the writing units where the vertical line includes the nearest contact points at endmost side of the image in sub-scanning direction where the image is formed by overlapping or adjoining at least part of the writing units in main-scanning direction and satisfies formula below: T?0.4X where T is average height of the convex portions and X is minimum distance between centers of the adjacent writing units in the image.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: Kazuyuki UETAKE, Yoshihiko HOTTA, lchiro SAWAMURA, Tomomi ISHIMI, Yasuroh YOKOTA
  • Publication number: 20180333966
    Abstract: Recording method including emitting laser light from optical fiber array to record image formed of writing units with moving recording target and the optical fiber array relatively using recording device including laser light-emitting elements and emitting unit including the optical fiber array where optical fibers for guiding laser light from the laser light-emitting elements are aligned wherein (A?D/A?C) that is ratio of length of diagonal line A?D to length of diagonal line A?C in the image formed in a manner that at least part of the writing units are overlapped one another in the main-scanning direction is 1.05 or greater.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: Kazuyuki UETAKE, Yoshihiko Hotta, Ichiro Sawamura, Tomomi Ishimi, Yasuroh Yokota
  • Publication number: 20180333964
    Abstract: An image recording apparatus includes a plurality of laser emission parts disposed side by side in a predetermined direction for emitting laser light; an optical system configured to collect a plurality of beams of laser light emitted by the laser emission parts onto the recording target moving relative to the laser emission parts in a direction crossing the predetermined direction; and an output control unit configured to perform control such that energy of laser light emitted from an outermost end laser emission part of the laser emission parts is greater than energy of laser light emitted from a center laser emission part, the outermost end laser emission part emitting laser light to be transmitted through vicinity of an end portion of the optical system, the center laser emission part emitting laser light to be transmitted through a portion other than vicinity of the end portion of the optical system.
    Type: Application
    Filed: July 31, 2018
    Publication date: November 22, 2018
    Inventors: Ichiro SAWAMURA, Yoshihiko HOTTA, Kazuyuki UETAKE, Takahiro FURUKAWA, Tomomi ISHIMI, Yasuroh YOKOTA
  • Publication number: 20180326745
    Abstract: An image recording apparatus includes: a laser emitting device configured to emit laser beams emitted from a plurality of laser light-emitting elements; an optical fiber array including a plurality of optical fibers provided corresponding to the laser light-emitting elements and configured to guide the laser beams emitted from the laser light-emitting elements to a recording object that relatively moves with respect to the laser emitting device, laser emitting portions of the respective optical fibers being arrayed in an array form in a predetermined direction; and an image recording unit configured to control the laser emitting device so as to irradiate the recording object which relatively moves with respect to the laser emitting device in a direction different from the predetermined direction, with laser beams via the optical fiber array, to heat the recording object and record an image.
    Type: Application
    Filed: July 25, 2018
    Publication date: November 15, 2018
    Inventors: Kazuyuki UETAKE, Yoshihiko HOTTA, Ichiro SAWAMURA, Tomomi ISHIMI, Yasuroh YOKOTA
  • Publication number: 20180326744
    Abstract: An image recording device includes a laser irradiation device that emits laser lights output from a plurality of laser light emitting elements to different positions in a predetermined direction; and an image recording unit that controls the laser irradiation device to irradiate a recording object moving relative to the laser irradiation device in a direction different from the predetermined direction with laser so as to heat the object, form image dots, and record an image. The image recording unit controls the laser irradiation device, conducts recording such that at least one of the image dots, recorded alongside at different positions in a direction perpendicular to a relative moving direction of the object, is shifted relative to other ones of the image dots in the relative moving direction, and records a solid image on the object such that the image dot is partially overlapped with all adjacent image dots.
    Type: Application
    Filed: July 25, 2018
    Publication date: November 15, 2018
    Inventors: Ichiro SAWAMURA, Yoshihiko HOTTA, Kazuyuki UETAKE, Tomomi ISHIMI, Yasuroh YOKOTA
  • Patent number: 10108562
    Abstract: A semiconductor device according to the present invention includes a plurality of masters (100), a memory controller (400a), a bus that connects the plurality of masters (100) and the memory controller (400a), a QoS information register (610) that stores QoS information of the plurality of masters (100), a right grant number controller (602) that calculates the number of grantable access rights based on space information of a buffer (401) of the memory controller (400a), a right grant selection controller (603a) that selects the master (100) which will be granted the access right based on the QoS information of the QoS information register (610) and the number of grantable rights from the right grant number controller (602), and a request issuing controller (201a) that does not pass a request of the master (100) which has not been granted the access right from the right grant selection controller (603a).
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: October 23, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Sho Yamanaka, Toshiyuki Hiraki, Yoshihiko Hotta, Takahiro Irita