Patents by Inventor Hidetaka Nakamura

Hidetaka Nakamura 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: 11511803
    Abstract: The power control unit sets a drive interval for driving the sensor by providing power intermittently to the sensor to a first time interval when no change is detected in the sine-wave signal and the cosine-wave signal, sets to the second time interval that is shorter than the first time interval when a change in only one of the sine-wave signal and the cosine-wave signal is detected, and sets to the third time interval that is shorter than the second time interval when a change in one of the sine-wave signal and the cosine-wave signal is detected and then a change in the other is detected.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: November 29, 2022
    Assignee: NSK LTD.
    Inventors: Takayuki Kobayashi, Dai Suzuki, Shin Kumagai, Hidetaka Nakamura
  • Publication number: 20220338137
    Abstract: An acquisition unit (15a) acquires packets passing through an active system path and packets passing through a standby system path. An aggregation unit (15b) aggregates information on the packets using the acquired packets. A determination unit (15c) compares the aggregated information on the packets between the active system path and the standby system path to determine whether there is a difference in state information indicating an operational state in an NF. In a case where it is determined that there is the difference, an instruction unit (15d) instructs an NF of the active system path and an NF of the standby system path facing the NF of the active system path to synchronize the state information.
    Type: Application
    Filed: August 23, 2019
    Publication date: October 20, 2022
    Inventors: Takuya SATO, Tomohiro OKADA, Takayuki NAKAMURA, Shunsuke HOMMA, Hidetaka NISHIHARA
  • Patent number: 11453439
    Abstract: The power control unit sets a drive interval for driving the sensor by providing power intermittently to the sensor to a first time interval when no change is detected in the sine-wave signal and the cosine-wave signal, sets to the second time interval that is shorter than the first time interval when a change in only one of the sine-wave signal and the cosine-wave signal is detected, and sets to the third time interval that is shorter than the second time interval when a change in one of the sine-wave signal and the cosine-wave signal is detected and then a change in the other is detected.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: September 27, 2022
    Assignee: NSK LTD.
    Inventors: Takayuki Kobayashi, Dai Suzuki, Shin Kumagai, Hidetaka Nakamura
  • Publication number: 20220297757
    Abstract: A rotation angle detection device including: an angular position calculation unit configured to calculate angular position information representing an angular position of the motor rotation shaft based on a first sensor signal of the first sensor; an rotation number detection unit configured to detect a rotation number of the motor rotation shaft based on a second sensor signal of a second sensor and outputs rotation number information representing the rotation number; a rotation angle calculation unit configured to calculate rotation angle information indicating a rotation angle of the motor rotation shaft based on the angular position information and the rotation number information; and a power supply unit configured to stop supplying power to the first sensor, the angular position calculation unit and the rotation angle calculation unit and to supply power to the second sensor and the rotation number detection unit when the power switch is off.
    Type: Application
    Filed: April 7, 2021
    Publication date: September 22, 2022
    Applicant: NSK LTD.
    Inventors: Takayuki KOBAYASHI, Dai SUZUKI, Shin KUMAGAI, Hidetaka NAKAMURA
  • Publication number: 20220264441
    Abstract: A slice gateway connects one or more subslices in a network in which an E2E slice is made up of multiple subslices. The slice gateway receives an inspection packet, determines an output destination subslice of the inspection packet based on a distribution table, embeds an ID of the output destination subslice in a payload of the inspection packet, and outputs the packet that includes the embedded ID to the output destination subslice; and notifies a quality tabulation device of information regarding the inspection packet.
    Type: Application
    Filed: July 30, 2019
    Publication date: August 18, 2022
    Inventors: Takayuki NAKAMURA, Tomohiro OKADA, Shunsuke HOMMA, Takuya SATO, Hidetaka NISHIHARA
  • Publication number: 20220089216
    Abstract: The power control unit sets a drive interval for driving the sensor by providing power intermittently to the sensor to a first time interval when no change is detected in the sine-wave signal and the cosine-wave signal, sets to the second time interval that is shorter than the first time interval when a change in only one of the sine-wave signal and the cosine-wave signal is detected, and sets to the third time interval that is shorter than the second time interval when a change in one of the sine-wave signal and the cosine-wave signal is detected and then a change in the other is detected.
    Type: Application
    Filed: April 7, 2021
    Publication date: March 24, 2022
    Applicant: NSK LTD.
    Inventors: Takayuki KOBAYASHI, Dai SUZUKI, Shin KUMAGAI, Hidetaka NAKAMURA
  • Publication number: 20220041215
    Abstract: The power management unit supplies first power that is continuous power to the second sensor when the power switch is on, supplies second power that is intermittent power having a voltage lower than the first power to the second sensor when the power switch is off, and outputs rotation number information representing a rotation number of the motor rotation shaft based on the second sensor signal. The power management unit includes a comparator that operates using the second power as the power source when the power switch is off and compare the second sensor signal and the reference voltage, and a counter that detects the rotation number of the motor rotation shaft by counting the output of the comparators.
    Type: Application
    Filed: April 7, 2021
    Publication date: February 10, 2022
    Applicant: NSK LTD.
    Inventors: Dai SUZUKI, Takayuki KOBAYASHI, Shin KUMAGAI, Hidetaka NAKAMURA
  • Patent number: 7728876
    Abstract: An imaging apparatus includes: a camera head that is provided with an image pickup device that outputs an image signal; a camera control unit that is connected to the camera head with a camera cable and outputs a video signal based on the image signal; a CDS circuit that performs co-related double sampling on the image signal; a pulse generator that outputs sample pulses to the CDS circuit; a phase adjusting unit that performs phase adjustment on a clock signal and outputs the adjusted clock signal to the pulse generator; a peak search unit that searches for a peak range in the image signal being performed with the co-related double sampling by the CDS circuit; and a phase control unit that controls the phase adjustment by the phase adjusting unit based on a result of the search by the peak search unit.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: June 1, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tetsuo Sakurai, Masatoshi Ookubo, Hidetaka Nakamura
  • Patent number: 7714894
    Abstract: According to one embodiment, a remote head camera includes a camera control unit, and a camera head configured to be connected to the camera control unit and including an imaging device, a drive signal generator, and a format identifying unit. The drive signal generator generates a drive signal for driving the imaging device. The format identifying unit identifies a format of the imaging device based on a clock count in a synchronization period from a first synchronization pulse to a second synchronization pulse output after the first synchronization pulse. The first synchronization pulse and the second synchronization pulse constitutes a synchronization signal.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: May 11, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidetaka Nakamura, Hiroshi Shinozaki, Tetsuo Sakurai
  • Publication number: 20090244295
    Abstract: An imaging apparatus includes: a camera head that is provided with an image pickup device that outputs an image signal; a camera control unit that is connected to the camera head with a camera cable and outputs a video signal based on the image signal; a CDS circuit that performs co-related double sampling on the image signal; a pulse generator that outputs sample pulses to the CDS circuit; a phase adjusting unit that performs phase adjustment on a clock signal and outputs the adjusted clock signal to the pulse generator; a peak search unit that searches for a peak range in the image signal being performed with the co-related double sampling by the CDS circuit; and a phase control unit that controls the phase adjustment by the phase adjusting unit based on a result of the search by the peak search unit.
    Type: Application
    Filed: December 12, 2008
    Publication date: October 1, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tetsuo Sakurai, Masatoshi Ookubo, Hidetaka Nakamura
  • Publication number: 20090185048
    Abstract: According to one embodiment, a remote head camera includes a camera control unit, and a camera head configured to be connected to the camera control unit and including an imaging device, a drive signal generator, and a format identifying unit. The drive signal generator generates a drive signal for driving the imaging device. The format identifying unit identifies a format of the imaging device based on a clock count in a synchronization period from a first synchronization pulse to a second synchronization pulse output after the first synchronization pulse. The first synchronization pulse and the second synchronization pulse constitutes a synchronization signal.
    Type: Application
    Filed: December 18, 2008
    Publication date: July 23, 2009
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidetaka Nakamura, Hiroshi Shinozaki, Tetsuo Sakurai
  • Publication number: 20070296827
    Abstract: According to one embodiment, a camera control unit constituting a head detachable camera includes plural drive signal generators generating a drive signal different by each format of an image pickup device, plural video signal generators generating a video signal different by each format of the image pickup device, and plural converters converting the video signal into an output format different by each format of the image pickup device. Besides, the camera control unit switches the drive signal generator, video signal generator, and converter to be activated in accordance with the format of the image pickup device from among the plural drive signal generators, video signal generators, and converters.
    Type: Application
    Filed: May 18, 2007
    Publication date: December 27, 2007
    Inventors: Akihiko Kubota, Hidetaka Nakamura, Hiroyuki Ishino
  • Publication number: 20070024641
    Abstract: According to one embodiment, there are provided a clipping unit configured to clip out predetermined numbers of pixels respectively in the horizontal direction and the vertical direction from first and second solid-state image sensors which are installed so as be shifted by half a pixel pitch respectively in the horizontal direction and the vertical direction, and a processing unit configured to apply pixel shift processings in the horizontal direction and the vertical direction which correspond to pixel shifts of the first and second solid-state image sensors, with respect to an output of pixels clipped out by the clipping unit.
    Type: Application
    Filed: July 14, 2006
    Publication date: February 1, 2007
    Inventors: Hidetaka Nakamura, Akihiko Kubota, Masayoshi Sato, Hiroyuki Ishino