Patents by Inventor Yukifumi Kobayashi

Yukifumi Kobayashi 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).

  • Publication number: 20160100072
    Abstract: An image forming apparatus includes an information obtainer, a memory, a candidate determining unit, and an image forming device. The information obtainer obtains feature information from the target recording medium. The memory stores at least one set of recording medium information regarding the target recording medium associated with the feature information and at least one set of image forming condition information corresponding to the recording medium information. The recording medium information is identification information. The candidate determining unit determines a candidate recording medium information from the recording medium information stored in the memory based on the feature information of the target recording medium obtained by the information obtainer. The image forming device forms an image on the target recording medium based on the image forming condition information in the memory according to the candidate recording medium information determined by the candidate determining unit.
    Type: Application
    Filed: September 28, 2015
    Publication date: April 7, 2016
    Inventors: Yukifumi KOBAYASHI, Hideyo MAKINO, Tetsuya OFUCHI, Takayuki NISHIMURA, Yasuyuki SEKINO, Tohru MATSUMOTO, Noriaki TAKENAGA, Satoshi NAKAYAMA
  • Publication number: 20160090256
    Abstract: A sheet discriminator, which can be included in an image forming apparatus, includes a sheet loader on which a recording medium is loaded, an information detector including a light emitter to emit light to a surface of the recording medium loaded on the sheet loader and a light receiver to receive the light emitted by the light emitter and detecting information of the recording medium, a sheet distinguisher to distinguish a type of the recording medium based on the information detected by the information detector, and a detector body encasing at least the information detector therein and having an opening formed on an opposing face facing the sheet loader. The opposing face has an opening formed thereon. The opening has at least one arc-shaped side.
    Type: Application
    Filed: September 29, 2015
    Publication date: March 31, 2016
    Applicant: RICOH COMPANY, LTD.
    Inventors: Satoshi NAKAYAMA, Noriaki TAKENAGA, Hideyo MAKINO, Tetsuya OFUCHI, Takayuki NISHIMURA, Yasuyuki SEKINO, Tohru MATSUMOTO, Yukifumi KOBAYASHI
  • Publication number: 20150293487
    Abstract: A sheet discriminator, which can be included in an image forming apparatus, includes an optical information detector, a sheet distinguisher, and a sheet thickness detector. The optical information detector includes a light emitter to emit light to a recording medium and a light receiver to receive the light and detects information of the recording medium. The sheet distinguisher distinguishes a type of the recording medium based on the information detected by the optical information detector. The sheet thickness detector includes a displacement gauge to sandwich the recording medium with an opposing member disposed facing the displacement gauge and to move from an initial position thereof and a displacement detector to detect an amount of displacement of the displacement gauge. The sheet thickness detector detects a thickness of the recording medium based on detection results obtained by the displacement detector.
    Type: Application
    Filed: April 8, 2015
    Publication date: October 15, 2015
    Applicant: Ricoh Company, Ltd.
    Inventors: Noriaki TAKENAGA, Tohru MATSUMOTO, Tetsuya OFUCHI, Takayuki NISHIMURA, Yukifumi KOBAYASHI, Hideyo MAKINO, Satoshi NAKAYAMA
  • Publication number: 20150186762
    Abstract: A sheet discriminator includes a sheet loader on which a recording medium is loaded, an information detector to detect information of the recording medium loaded on the sheet loader, and a sheet distinguisher to distinguish a type of the recording medium based on the information detected by the information detector. The information detector detects the information of the recording medium with the recording medium being inserted between the sheet loader and the information detector. An image forming apparatus incorporates the sheet discriminator and an image forming part to form an image on the recording medium.
    Type: Application
    Filed: December 24, 2014
    Publication date: July 2, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Takayuki NISHIMURA, Tetsuya OFUCHI, Tohru MATSUMOTO, Yukifumi KOBAYASHI
  • Publication number: 20150151938
    Abstract: A sheet discriminator, which is incorporated in an image forming apparatus and an image forming system, includes a sheet loader on which a recording medium is loaded, an information detector including a light emitter to emit light to a surface of the recording medium loaded on the sheet loader and a light receiver to receive the light emitted by the light emitter and detecting information of the recording medium, a sheet distinguisher to distinguish a type of the recording medium based on the information detected by the information detector, and a light emission controller to control activation and stop of the light emitter and activate the light emitter before the information detector starts detection of the information of the recording medium.
    Type: Application
    Filed: December 2, 2014
    Publication date: June 4, 2015
    Applicant: RICOH COMPANY, LTD.
    Inventors: Tohru MATSUMOTO, Tetsuya OFUCHI, Takayuki NISHIMURA, Yukifumi KOBAYASHI
  • Patent number: 9049442
    Abstract: A technique is provided that can record moving images while not resulting in calculation load increase and maintaining a certain degree of image quality even when encoding corresponding to a 4:4:4 format. Provisional encoding is performed, by obtaining motion vectors in accordance with a plurality of mutually different search ranges of image data of one color component, on a preset number of frame images at an initial stage at a time when an encoding start instruction is given. Moreover, the search range having the smallest error vector among each of the search ranges is determined as a search range for a motion vector, for each color component in main encoding processing carried out following provisional encoding.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: June 2, 2015
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Sakamoto, Yukifumi Kobayashi
  • Publication number: 20140270513
    Abstract: A technique is provided that can record moving images while not resulting in calculation load increase and maintaining a certain degree of image quality even when encoding corresponding to a 4:4:4 format. Provisional encoding is performed, by obtaining motion vectors in accordance with a plurality of mutually different search ranges of image data of one color component, on a preset number of frame images at an initial stage at a time when an encoding start instruction is given. Moreover, the search range having the smallest error vector among each of the search ranges is determined as a search range for a motion vector, for each color component in main encoding processing carried out following provisional encoding.
    Type: Application
    Filed: February 27, 2014
    Publication date: September 18, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Daisuke Sakamoto, Yukifumi Kobayashi
  • Patent number: 8588301
    Abstract: An image coding apparatus which divides an input picture into a plurality of macroblocks and performs a prediction encoding for each macroblock, comprising a unit for calculating flatness based on pixel values contained in a macroblock of interest and determining whether the macroblock of interest is a flat macroblock, a unit for storing determination results for each macroblock, a unit for determining, based on the determination results, whether the macroblock of interest determined to be a flat macroblock belongs to a flat area, a unit for selecting one of the inter-prediction mode and the intra-prediction mode as a prediction mode for an encoding process of the macroblock of interest based on determination results and on cost values of the inter-prediction mode and the intra-prediction mode, and a unit for performing predictive coding according to the selected prediction mode.
    Type: Grant
    Filed: June 18, 2010
    Date of Patent: November 19, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukifumi Kobayashi
  • Patent number: 8538092
    Abstract: An image processing apparatus determines a specific color region that includes a specific color, and a non-specific color region around which the specific color regions are present in three directions, i.e., an upper, left, and right directions, in a picture in the non-specific color regions that are not determined as including the specific color as specific regions to be subjected to predetermined image processing.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: September 17, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yukifumi Kobayashi
  • Publication number: 20120263233
    Abstract: The present invention provides a functional block that executes video coding and video decoding based on H. 264/AVC. The functional block includes two moving picture processing units, and a memory unit that stores therein data related to the results of processing of first plural macroblocks arranged within one row of one picture by the first moving picture processing unit. Data related to the results of processing of plural adjacent macroblocks, which are selected from the data stored in the memory unit, are transferred to the second moving picture processing unit. The second moving picture processing unit performs processing of one macroblock of second plural macroblocks arranged in the following row, using the transferred data.
    Type: Application
    Filed: June 26, 2012
    Publication date: October 18, 2012
    Inventors: Kenichi IWATA, Seiji Mochizuki, Tetsuya Shibayama, Fumitaka Izuhara, Hiroshi Ueda, Yukifumi Kobayashi, Hiroaki Nakata, Koji Hosogi, Masakazu Ehama, Takafumi Yuasa
  • Patent number: 8223838
    Abstract: The present invention provides a functional block that executes video coding and video decoding based on H.264/AVC. The functional block includes two moving picture processing units, and a memory unit that stores therein data related to the results of processing of first plural macroblocks arranged within one row of one picture by the first moving picture processing unit. Data related to the results of processing of plural adjacent macroblocks, which are selected from the data stored in the memory unit, are transferred to the second moving picture processing unit. The second moving picture processing unit performs processing of one macroblock of second plural macroblocks arranged in the following row, using the transferred data.
    Type: Grant
    Filed: August 6, 2007
    Date of Patent: July 17, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Kenichi Iwata, Seiji Mochizuki, Tetsuya Shibayama, Fumitaka Izuhara, Hiroshi Ueda, Yukifumi Kobayashi, Hiroaki Nakata, Koji Hosogi, Masakazu Ehama, Takafumi Yuasa
  • Publication number: 20120140827
    Abstract: In an image coding apparatus to process a frame image generated by combining a plurality of different images in the side-by-side method as a coding target image, information which specifies an image block in contact with a boundary of the plurality of images is input to the image coding apparatus. A control unit sets a predetermined coding control parameter which reduces or inhibits filtering with a deblocking filter on the image block in contact with the boundary of the plurality of images specified based on the input information.
    Type: Application
    Filed: November 18, 2011
    Publication date: June 7, 2012
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yukifumi Kobayashi
  • Publication number: 20110002385
    Abstract: An image coding apparatus which divides an input picture into a plurality of macroblocks and performs a prediction encoding for each macroblock, comprising a unit for calculating flatness based on pixel values contained in a macroblock of interest and determining whether the macroblock of interest is a flat macroblock, a unit for storing determination results for each macroblock, a unit for determining, based on the determination results, whether the macroblock of interest determined to be a flat macroblock belongs to a flat area, a unit for selecting one of the inter-prediction mode and the intra-prediction mode as a prediction mode for an encoding process of the macroblock of interest based on determination results and on cost values of the inter-prediction mode and the intra-prediction mode, and a unit for performing predictive coding according to the selected prediction mode.
    Type: Application
    Filed: June 18, 2010
    Publication date: January 6, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yukifumi Kobayashi
  • Publication number: 20090074260
    Abstract: An image processing apparatus determines a specific color region that includes a specific color, and a non-specific color region around which the specific color regions are present in three directions, i.e., an upper, left, and right directions, in a picture in the non-specific color regions that are not determined as including the specific color as specific regions to be subjected to predetermined image processing.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Yukifumi Kobayashi
  • Publication number: 20080031329
    Abstract: The present invention provides a functional block that executes video coding and video decoding based on H.264/AVC. The functional block includes two moving picture processing units, and a memory unit that stores therein data related to the results of processing of first plural macroblocks arranged within one row of one picture by the first moving picture processing unit. Data related to the results of processing of plural adjacent macroblocks, which are selected from the data stored in the memory unit, are transferred to the second moving picture processing unit. The second moving picture processing unit performs processing of one macroblock of second plural macroblocks arranged in the following row, using the transferred data.
    Type: Application
    Filed: August 6, 2007
    Publication date: February 7, 2008
    Inventors: Kenichi IWATA, Seiji Mochizuki, Tetsuya Shibayama, Fumitaka Izuhara, Hiroshi Ueda, Yukifumi Kobayashi, Hiroaki Nakata, Koji Hosogi, Masakazu Ehama, Takafumi Yuasa
  • Publication number: 20070294514
    Abstract: To provide a technique to reduce power consumption when carrying out image processing by processors. For the purpose of this, for example, a means for specifying a two-dimensional source register and destination register is provided in an operand of an instruction, and the processor includes a means which executes calculation using a plurality of source registers in a plurality of cycles and obtains a plurality of destinations. Moreover, in an instruction to obtain a destination using a plurality of source registers and consuming a plurality of cycles, a data rounding processing part is connected to a final stage of a pipeline. With such configurations, the power consumed when reading an instruction memory is reduced by reducing the access frequency to the instruction memory, for example.
    Type: Application
    Filed: March 21, 2007
    Publication date: December 20, 2007
    Inventors: Koji Hosogi, Masakazu Ehama, Hiroaki Nakata, Kenichi Iwata, Seiji Mochizuki, Takafumi Yuasa, Yukifumi Kobayashi, Tetsuya Shibayama, Hiroshi Ueda, Masaki Nobori
  • Publication number: 20020184471
    Abstract: A semiconductor integrated circuit includes a single instruction multiple data (SIMD) unit conducting a concurrent operation for a plurality of data items, a data buffer connectable to the SIMD unit, and a data transfer control unit for controlling transfer of data for the data buffer thereby, the data transfer control unit controls the transfer of data for a subsequent operation to the buffer in concurrence with the operation of the SIMD unit for the plural data items read from the data buffer and in concurrent with the operation of the SIMD unit, data for a subsequent operation is transferred to the data buffer.
    Type: Application
    Filed: February 25, 2002
    Publication date: December 5, 2002
    Inventors: Hiroshi Hatae, Hiromi Watanabe, Yukifumi Kobayashi