Patents by Inventor Hiroshi Yoshimoto

Hiroshi Yoshimoto 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: 8831835
    Abstract: A steering system includes: an operation mechanism that includes an operation member; and a steered mechanism that is not mechanically coupled to the operation mechanism and that steers a wheel on the basis of a steering operation of the operation member. The operation mechanism includes a steering angle sensor that detects a steering angle of the operation member and a steering direction detection unit that detects a steering direction of the operation member. The steering direction detection unit includes a threaded shaft that is rotatable in the steering direction of the operation member, a nut that is screwed to the threaded shaft, a nut guide that causes the nut to move in an axial direction of the threaded shaft in accordance with rotation of the threaded shaft, and a force detection sensor that detects a force that the nut guide receives from the nut.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 9, 2014
    Assignee: JTEKT Corporation
    Inventor: Hiroshi Yoshimoto
  • Publication number: 20130342588
    Abstract: A signal processing circuit supplies a gradation signal specifying a gradation to be displayed on pixels comprising; a conversion unit that extracts a extraction signal specifying a gradation to be displayed on a predetermined number of pixels including a certain pixel for each RGBW, from the video signal specifying a gradation to be displayed on a pixel for each RGBW, a storage unit that stores a predetermined number of coefficients for each RGBW, a first selection unit that selects a single color signal specifying a gradation to be displayed on a block with regard to a display color of a certain pixel, from the extraction signal, a second selection unit that acquires a predetermined number of coefficients corresponding to the display color of a certain pixel and a calculation unit that generates a gradation signal based on the outputs from the first selection unit and the second selection unit.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Inventor: Hiroshi YOSHIMOTO
  • Patent number: 8562148
    Abstract: A control device that controls a video signal to be input to a display device and controls the luminance of a light source that causes light to be incident on the display device includes: a light source luminance control section that controls the luminance of the light source by means of a light source luminance control signal; a storage section that stores relationships between light source luminance control signals and video correction amounts; a video correction signal generating section that generates, on the basis of the video correction amount that is stored in the storage section and corresponds to the generated light source luminance control signal, a video correction signal that is used to correct the video signal; and a video signal correcting section that corrects the video signal by means of the video correction signal.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: October 22, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Hirosada Horiguchi, Hiroshi Yoshimoto, Tadashi Yamada
  • Publication number: 20130077052
    Abstract: A projector includes a lamp that emits projection light to project 3D picture, in which a right eye image and a left eye image are represented in a time division manner, to an object, a synchronization signal transmission section which transmits shutter synchronization signal to glasses having a right eye shutter and a left eye shutter to control the opened state or the closed state of the right eye shutter and the left eye shutter, based on the signal indicating a displaying period of the right eye image and the left eye image of 3D picture, and a lamp drive section that supplies AC current having peak overlapping with a period when the right eye shutter of the glasses is in the opened state and peak overlapping with a period when the left eye shutter of the glasses is in the opened state to the lamp, based on the signal.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hirosada HORIGUCHI, Hiroshi YOSHIMOTO, Tadashi YAMADA, Keiji FUKUHARA
  • Publication number: 20130066521
    Abstract: In a control unit for a vehicle steering system, which controls an electric motor that is used to change a steering angle on the basis of a target route for a vehicle, a turning angle of a steered wheel with respect to a central axis of a shock absorber is set as a steered element angle, and the steered element angle is used in control over the electric motor.
    Type: Application
    Filed: September 4, 2012
    Publication date: March 14, 2013
    Applicant: JTEKT CORPORATION
    Inventors: Takeshi WATANABE, Atsushi ISHIHARA, Hiroshi YOSHIMOTO
  • Publication number: 20130044297
    Abstract: A projector which includes a light source, liquid crystal light valves, a dimming mechanism, an illumination optical system, a control circuit which determines an input light amount which is caused to be input to the liquid crystal light valve on the basis of an input image signal, outputs an output image signal which is decompressed according to the input light amount, and generates a first control signal which designates a first dimming rate of a high pressure mercury lamp and a second control signal which designates a second dimming rate of the dimming mechanism based on the input light amount, an illumination driving circuit which drives the light source on the basis of the first control signal, and a douser driving circuit which drives the douser on the basis of the second control signal.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 21, 2013
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hirosada HORIGUCHI, Hiroshi YOSHIMOTO, Tadashi YAMADA
  • Publication number: 20120194659
    Abstract: A display control circuit includes: a frame memory; a first correction image data generation unit that generates first correction image data that corrects a response characteristic of an electro-optical element; a second correction image data generation unit that generates second correction image data that corrects the intermixing of a right-eye image and a left-eye image; a selection unit that selects the first correction image data in a first field and the second correction image data in a second and subsequent fields; and a correction unit that generates output image data by correcting the first image data.
    Type: Application
    Filed: January 26, 2012
    Publication date: August 2, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroshi YOSHIMOTO
  • Publication number: 20110096233
    Abstract: A control device that controls a video signal to be input to a display device and controls the luminance of a light source that causes light to be incident on the display device includes: a light source luminance control section that controls the luminance of the light source by means of a light source luminance control signal; a storage section that stores relationships between light source luminance control signals and video correction amounts; a video correction signal generating section that generates, on the basis of the video correction amount that is stored in the storage section and corresponds to the generated light source luminance control signal, a video correction signal that is used to correct the video signal; and a video signal correcting section that corrects the video signal by means of the video correction signal.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 28, 2011
    Applicant: Seiko Epson Corporation
    Inventors: Hirosada HORIGUCHI, Hiroshi YOSHIMOTO, Tadashi YAMADA
  • Patent number: 7855704
    Abstract: A liquid-crystal-device control circuit includes pixels corresponding to intersections between scanning lines in rows and data lines in columns, a counter that counts the number of horizontal lines included in a video signal supplied correspondingly to a region broader than pixels corresponding to the scanning lines in the rows, a determination circuit that determines which is greater between the number of horizontal lines counted by the counter and a value stored in a predetermined register, an addition/subtraction circuit that, depending on a result of determination by the determination circuit, adds a predetermined number to or subtracts the predetermined number from the value stored in the register, and a scanning control circuit which stores the value obtained by the addition/subtraction circuit in the register, and which defines start timing of the second field on the basis of the value stored in the register.
    Type: Grant
    Filed: April 10, 2007
    Date of Patent: December 21, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Hiroshi Yoshimoto
  • Patent number: 7518590
    Abstract: A driving circuit for an electro-optical device drives an electro-optical device an image display region driven by a scanning line driving circuit that drives a plurality of scanning lines. The image display region is divided into a plurality of partial regions. The scanning line driving circuit supplies scanning signals alternately to the partial regions and sequentially to a plurality of scanning lines in the respective partial regions, and an image signal supply circuit supplies image signals to a plurality of data lines such that each of the plurality of partial regions is subjected to horizontal scanning in a 1/n horizontal scanning period. The scanning line driving circuit supplies the scanning signals such that a scanning line, which is disposed at an edge of one side in the image display region, is the last for each field period.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: April 14, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Hiroshi Yoshimoto
  • Publication number: 20080180374
    Abstract: A processing circuit includes an adder circuit that adds, when converting image data into one of a positive and negative data signals, a correction value stored in a storage unit to the image data, and, when converting the image data into the other of the positive and negative data signal, adds a sign-inverted value of the correction value stored in the storage unit to the image data.
    Type: Application
    Filed: November 30, 2007
    Publication date: July 31, 2008
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroshi YOSHIMOTO
  • Publication number: 20070247410
    Abstract: A liquid-crystal-device control circuit includes pixels corresponding to intersections between scanning lines in rows and data lines in columns, a counter that counts the number of horizontal lines included in a video signal supplied correspondingly to a region broader than pixels corresponding to the scanning lines in the rows, a determination circuit that determines which is greater between the number of horizontal lines counted by the counter and a value stored in a predetermined register, an addition/subtraction circuit that, depending on a result of determination by the determination circuit, adds a predetermined number to or subtracts the predetermined number from the value stored in the register, and a scanning control circuit which stores the value obtained by the addition/subtraction circuit in the register, and which defines start timing of the second field on the basis of the value stored in the register.
    Type: Application
    Filed: April 10, 2007
    Publication date: October 25, 2007
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroshi Yoshimoto
  • Patent number: 7146256
    Abstract: Each power source switching unit (8) of a electric power system (1) constituted of a power operating system having a power generator (3) driven by an external power source (40) and an engine (4) is constituted of a means for sensing information on a selected power source and supply power in time series, calculating a supply power quantity every power source on the basis of sense data, and storing these sensing and calculated data. This power source switching unit (8), disposed every power load group, comprises a means for communication with another power source switching unit (8). A power source management system, constituted of the power source switching unit (8), comprises a means for transmitting the sensed data or calculated data of each power source switching unit (8) to the control system of the power generating system, a means for receiving data transmitted from the power source management system, and an image display means for displaying the received data by graphing.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: December 5, 2006
    Assignee: Yanmar Co., Ltd.
    Inventors: Shinji Hibi, Masayoshi Tokiwa, Toshinobu Fujisawa, Tadatatsu Kanemoto, Yasunori Goda, Mamoru Fukae, Hiroshi Yoshimoto
  • Publication number: 20060159012
    Abstract: In a clustered message queuing system, when a fault occurs in an active system computer A, a standby system node refers to queue-node correspondence information stored in a disk device. By such processing, the standby system node recognizes the fact that queues having the same name as a queue used by the active system computer A are present in an active system computer B and an active system computer C. Then, the standby system node distributes messages remaining in the queue of the fault computer A to the active system computer B and the active system computer C. Processing of the messages distributed to these computers B and C is continued. Because the fault recovery processing permits one standby system node to perform fault recovery in a plurality of active system nodes, a computer system excellent in scalability can be provided.
    Type: Application
    Filed: December 27, 2005
    Publication date: July 20, 2006
    Inventors: Hiroshi Yoshimoto, Hiroya Tsuzuki
  • Publication number: 20060022931
    Abstract: A driving circuit for an electro-optical device drives an electro-optical device having, on an image display region on a substrate, a plurality of data lines and a plurality of scanning lines, and a plurality of pixel units electrically connected to the scanning lines and the data lines.
    Type: Application
    Filed: July 14, 2005
    Publication date: February 2, 2006
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Hiroshi Yoshimoto
  • Patent number: 6927499
    Abstract: A control unit (5) for controlling each device which constitutes a electric power generator set (1) is provided with an operation-and-display device (28) so constituted as to calculate each electric power value data and each electric energy data on external electric power, generated electric power, and load electric power on the basis of sensed data on each value of external electric power and generated electric power transmitted from inverters (6a, 6b) and as to store these calculated data and the sensed data, and connected to the electric power generator set (1) by wires or radio.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: August 9, 2005
    Assignee: Yanmar Co., Ltd.
    Inventors: Shinji Hibi, Masayoshi Tokiwa, Toshinobu Fujisawa, Tadatatsu Kanemoto, Hiroshi Yoshimoto, Kozo Yamamuro, Mamoru Fukae
  • Publication number: 20050128659
    Abstract: Each power source switching unit (8) of a electric power system (1) constituted of a power operating system having a power generator (3) driven by an external power source (40) and an engine (4) is constituted of a means for sensing information on a selected power source and supply power in time series, calculating a supply power quantity every power source on the basis of sense data, and storing these sensing and calculated data. This power source switching unit (8), disposed every power load group, comprises a means for communication with another power source switching unit (8). A power source management system, constituted of the power source switching unit (8), comprises a means for transmitting the sensed data or calculated data of each power source switching unit (8) to the control system of the power generating system, a means for receiving data transmitted from the power source management system, and an image display means for displaying the received data by graphing.
    Type: Application
    Filed: February 4, 2003
    Publication date: June 16, 2005
    Inventors: Shinji Hibi, Masayoshi Tokiwa, Toshinobu Fujisawa, Tadatatsu Kanemoto, Yasunori Goda, Mamoru Fukae, Hiroshi Yoshimoto
  • Publication number: 20050116475
    Abstract: A control unit (5) for controlling each device which constitutes a electric power generator set (1) is provided with an operation-and-display device (28) so constituted as to calculate each electric power value data and each electric energy data on external electric power, generated electric power, and load electric power on the basis of sensed data on each value of external electric power and generated electric power transmitted from inverters (6a, 6b) and as to store these calculated data and the sensed data, and connected to the electric power generator set (1) by wires or radio.
    Type: Application
    Filed: February 4, 2003
    Publication date: June 2, 2005
    Inventors: Shinji Hibi, Masayoshi Tokiwa, Toshinobu Fujisawa, Tadatatsu Kanemoto, Hiroshi Yoshimoto, Kozo Yamamuro, Mamoru Fukae
  • Patent number: 6539689
    Abstract: Means to sequentially transfer packaged bodies (30) carried by a conveyor (32) onto surface plates (40) rotated at equal intervals along a circular route (41) and vacuum-package the packaged bodies (30) in a vacuum chamber formed with cover materials covering the surface plates (40), wherein the feed pitch of each surface plate (40) is input into a controller (58) with pulses from an encoder (56), and a pitch between the front end sides of packaged matter (18) inside the packaged bodies is detected by an optical sensor (59) and input to the controller (58) so as to control the speed of an adjustment conveyor (35) according to a pitch displacement of the packaged matter (18) relative to the pitch between the surface plates (40).
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: April 1, 2003
    Assignee: Furukawa Mfg. Co., Ltd.
    Inventor: Hiroshi Yoshimoto
  • Patent number: 6458228
    Abstract: A hammer (14) coupled to an ultrasonic vibrator (15) is actuated to apply vibrations to a wrapping material (10) with irregularities in composition and thickness so that the wrapping material (10) can be fusion-bonded with uniform strength. The surface temperature of the wrapping material (10) measured by an infrared sensor (30) is sent to a control unit (22), and a controller (23) sends a control signal (24) to a variable-voltage source (25). The variable-voltage source (25) controls the amplitude of vibrations of the hammer (14) by temperature feedback to make uniform the generation of heat in the wrapping material (10).
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: October 1, 2002
    Assignee: Furukawa Mfg. Co., Ltd.
    Inventor: Hiroshi Yoshimoto