Patents by Inventor Nobuhiko Nakahara

Nobuhiko Nakahara 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: 20150262159
    Abstract: A merchandise sales data processing device includes a specification unit, a detection unit, a calculation unit, and a processing unit. The specification unit specifies merchandise. The detection unit detects information related to an ingredient which is contained in specified merchandise. The calculation unit calculates a tax amount which is imposed on merchandise based on the detected ingredient information. The processing unit processes sales data of merchandise using the calculated tax amount.
    Type: Application
    Filed: March 2, 2015
    Publication date: September 17, 2015
    Inventors: Tomonari Kakino, Koji Tanimoto, Nobuhiko Nakahara, Kenichi Komiya, Yasuo Matsumoto, Kazuhiro Hara, Eiji Gumbe, Takahisa Ikeda, Norimasa Ariga, Hirofumi Harada
  • Patent number: 8254002
    Abstract: Disclosed is a method of generating a screen for an image processing apparatus, which reproduces a multi-gradation image in one pixel using a PWM technique for controlling a pulse width and reference position data. The method includes inputting image data with a first resolution, virtually increasing the first resolution to a second resolution using the reference position data, and generating a screen with the second resolution with respect to the image data using two reference vectors based on the reference position data.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: August 28, 2012
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuhiko Nakahara
  • Patent number: 8014030
    Abstract: An image processing apparatus includes a contour pixel extraction unit configured to extract a contour pixel component from a bit plane. The bit plane is a set of bits, the number of which is equal to the number of pixels, and each of which is 1 bit of a plurality of bits representing an intensity of each of pixels. Also provided is a connectedness detection unit configured to detect equivalent bits adjacent to each other in a window including a bit corresponding to a target pixel on the bit plane. Also provided is a filter unit configured to reduce an intensity of the target pixel by a reduction amount determined in accordance with the contour pixel component extracted by the contour pixel extraction unit and the equivalent bits adjacent to each other detected by the connectedness detection unit.
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: September 6, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuhiko Nakahara
  • Patent number: 7995086
    Abstract: An image forming apparatus includes a laser array in which n light emitting sources are arrayed, an image-input converting unit configured to create, for each of channels of the laser array, a recording pattern for executing PWC from input image data and extract recording patterns of an nth channel and a first channel of the next scanning of the laser array, an overlapping control unit configured to calculate the width of laser pulses in the same position in a main scanning direction as overlapping width, a data correcting unit configured to reduce laser pulse width by a reduction amount corresponding to the calculated overlapping width and correct the laser pulse width, and a laser driver configured to control the intensity of laser beams in the respective channels of the laser array according to the recording patterns after the correction.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: August 9, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuhiko Nakahara
  • Patent number: 7973975
    Abstract: An image processing apparatus includes an image input device to convert image data into uncompressed data of CMYK, a gradation processing device to perform a gradation process on the uncompressed data to generate a halftone image, a rearrangement determination device to determine necessity of rearrangement of pixels of the halftone image, a selector to select an output destination based on a rearrangement necessity determination result, a rearrangement device to rearrange the pixels by using a threshold table used at a time of execution of the gradation process of the halftone image, and a coding device to output data obtained by coding data of the halftone image. According to the image processing device, coding efficiency can be improved more than in the related art while a harmful effect (reduction in code amount) due to the rearrangement process is suppressed.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: July 5, 2011
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Masaaki Yasunaga, Nobuhiko Nakahara
  • Publication number: 20110148956
    Abstract: An inkjet recording apparatus comprising; a recording portion for recording an image on a recording medium, said recording portion having an inkjet head unit including a plurality of connected line heads, an acquisition portion for acquisitioning pixel information indicated by a pixel of a document, a memory portion for storing position information of a joint portion of said head unit and head property information, a prediction portion for seeking output property by each printing directions based on said pixel information, said position information and said head property information, a direction conversion portion for converting a printing direction to reduce influence of the joint portion of said head unit on the document based on the output property acquired by said acquisition portion and said direct conversion output to said recording portion.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 23, 2011
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20100098444
    Abstract: An image forming apparatus includes a laser array in which n light emitting sources are arrayed, an image-input converting unit configured to create, for each of channels of the laser array, a recording pattern for executing PWC from input image data and extract recording patterns of an nth channel and a first channel of the next scanning of the laser array, an overlapping control unit configured to calculate the width of laser pulses in the same position in a main scanning direction as overlapping width, a data correcting unit configured to reduce laser pulse width by a reduction amount corresponding to the calculated overlapping width and correct the laser pulse width, and a laser driver configured to control the intensity of laser beams in the respective channels of the laser array according to the recording patterns after the correction.
    Type: Application
    Filed: October 15, 2009
    Publication date: April 22, 2010
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20090290883
    Abstract: An apparatus and method for controlling an amount of toner used to reproduce an image in an image forming apparatus includes receiving image data for an image to be reproduced and determining an image type for the received image data. A first toner saving function is if the determined image type is a first image type. A second toner saving function, different from the first toner saving function, is used if the determined image type is a second image type, different from the first image type.
    Type: Application
    Filed: May 23, 2008
    Publication date: November 26, 2009
    Inventor: Nobuhiko NAKAHARA
  • Publication number: 20090244553
    Abstract: An image processing system according to the invention is an image processing system including a printer driver-containing apparatus in which a printer driver is included, an image processing apparatus connected to the printer driver-containing apparatus, and a display apparatus connected to the printer driver-containing apparatus and having a display section. The image processing apparatus has a halftone processing unit configured to perform halftone processing of bitmap data, and a halftone setting unit configured to carry out setting of the halftone processing.
    Type: Application
    Filed: March 25, 2008
    Publication date: October 1, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20090244562
    Abstract: An image processing apparatus includes an image input device to convert image data into uncompressed data of CMYK, a gradation processing device to perform a gradation process on the uncompressed data to generate a halftone image, a rearrangement determination device to determine necessity of rearrangement of pixels of the halftone image, a selector to select an output destination based on a rearrangement necessity determination result, a rearrangement device to rearrange the pixels by using a threshold table used at a time of execution of the gradation process of the halftone image, and a coding device to output data obtained by coding data of the halftone image. According to the image processing device, coding efficiency can be improved more than in the related art while a harmful effect (reduction in code amount) due to the rearrangement process is suppressed.
    Type: Application
    Filed: April 1, 2008
    Publication date: October 1, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Masaaki Yasunaga, Nobuhiko Nakahara
  • Publication number: 20090213433
    Abstract: Disclosed is a method of generating a screen for an image processing apparatus, which reproduces a multi-gradation image in one pixel using a PWM technique for controlling a pulse width and reference position data. The method includes inputting image data with a first resolution, virtually increasing the first resolution to a second resolution using the reference position data, and generating a screen with the second resolution with respect to the image data using two reference vectors based on the reference position data.
    Type: Application
    Filed: February 3, 2009
    Publication date: August 27, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20090207196
    Abstract: An image forming apparatus according to the invention includes: a first image printing module that prints an image on a recording paper; and a second image printing module capable of printing by a paper feeding system that is serial to the first image printing module in the case of printing on a recording paper that is identical to the recording paper, and capable of printing simultaneously with and parallel to the first image printing module by a paper feeding system that is parallel to the first image printing module in the case of printing on a recording paper that is different from the recording paper. With the image forming apparatus according to the invention, highly flexible apparatus configurations and function configurations are realized and therefore the diversification in technology and diverse applications by users can be dealt with.
    Type: Application
    Filed: February 15, 2008
    Publication date: August 20, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20090135449
    Abstract: An image forming apparatus includes a pattern formation unit which forms a first gradation screen pattern on an image carrier unit at a non-image formation operation, a gradation characteristic determination unit which determines a gradation characteristic from the first gradation pattern formed by the pattern formation unit, a first gradation correction characteristic determination unit which determines a first gradation correction characteristic from the gradation characteristic determined by the gradation characteristic determination unit, a characteristic detection unit which detects a change characteristic in the image forming apparatus just before image formation, a pattern correlation characteristic correction unit which determines a pattern correlation characteristic corresponding to the change characteristic detected by the characteristic detection unit and a second gradation correction characteristic determination unit which determines a second gradation correction characteristic by performing an ar
    Type: Application
    Filed: November 25, 2008
    Publication date: May 28, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventors: Takeshi Watanabe, Nobuhiko Nakahara, Shigeru Fujiwara, Hiroyuki Okuyama
  • Publication number: 20090109453
    Abstract: An image forming apparatus includes an electrophotographic printer including a printer controller that performs an image processing on image data into which a page description language is developed and outputs the data to a printer engine, and the printer engine to perform printing of an image based on the image data transmitted from the printer controller, and an image quality maintaining control device to maintain image quality of the printer, and the image quality maintaining control device includes a halftone parameter control unit to change a halftone parameter when an image quality maintaining control processing of the printer is executed. According to the image forming apparatus, an image more stable than the related art can be maintained against an image quality variation caused by a mechanism or a process influenced by aging or environmental variation.
    Type: Application
    Filed: October 24, 2007
    Publication date: April 30, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20090074321
    Abstract: An image processing apparatus according to the invention includes a peculiarity detector which detects a peculiarity and forcedly changes a flag as a base of filter selection; and a line adjustment processing selection table 208 which outputs cnt_b corresponding to patterns of lcount0 to lcount3 in accordance with a table stored in advance. More precise line thinning is controlled by the output of cnt_b.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 19, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Publication number: 20090073468
    Abstract: An image processing apparatus includes a contour pixel extraction unit configured to extract a contour pixel component from a bit plane. The bit plane is a set of bits, the number of which is equal to the number of pixels, and each of which is 1 bit of a plurality of bits representing an intensity of each of pixels. Also provided is a connectedness detection unit configured to detect equivalent bits adjacent to each other in a window including a bit corresponding to a target pixel on the bit plane. Also provided is a filter unit configured to reduce an intensity of the target pixel by a reduction amount determined in accordance with the contour pixel component extracted by the contour pixel extraction unit and the equivalent bits adjacent to each other detected by the connectedness detection unit.
    Type: Application
    Filed: September 10, 2008
    Publication date: March 19, 2009
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Nobuhiko Nakahara
  • Patent number: 7505176
    Abstract: A halftoning process section in an image processing apparatus includes a process switching section that switches a process of a signal from a color conversion process section. The process switching section executes switching in accordance with input tag data. In the case of a text, a text halftoning process section executes a halftoning process. In the case of graphics, a bit number increasing section increases a bit number for graphics, and a graphics halftoning process section executes a halftoning process. In the case of a photo, a bit number increasing section increases a bit number for a photo, and a photo halftoning process section executes a halftoning process.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: March 17, 2009
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuhiko Nakahara
  • Patent number: 7483578
    Abstract: An image data decoding apparatus decoded synthesized-compressed data in which image data with a plurality of resolutions is compressed in block units by different compression systems, respectively, and each compressed data is synthesized to a single piece of compressed data. The image data decoding apparatus comprises a separating section 1005-1 for separating the synthesized-compressed data to compressed data with every resolution, decoding sections 1005-2, 1005-3 for decoding separated and compressed data with a first resolution to obtain first high-resolution data and also decoding compressed data with a second resolution obtained from the separating section to obtain first low-resolution data, a conversion section 1005-4 for converting the first low-resolution data into second high-resolution data, and an image synthesis section 1005-5 for synthesizing the first and the second high-resolution data to obtain a decoded image signal.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: January 27, 2009
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventors: Sunao Tabata, Nobuhiko Nakahara
  • Patent number: 7394572
    Abstract: In the present invention, in an image output apparatus having a specific resolution, a micro normal random number or a blue noise is synthesized in threshold matrix having a plurality of half-tone centers, having an equal interval between half-tone centers in most vicinity, and having lattice elements addressable at a rational tangent angle, wherein a growth order among half-tones is defined in a defined periodic order.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: July 1, 2008
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Tec Kabushiki Kaisha
    Inventor: Nobuhiko Nakahara
  • Publication number: 20070058875
    Abstract: An image data decoding apparatus decoded synthesized-compressed data in which image data with a plurality of resolutions is compressed in block units by different compression systems, respectively, and each compressed data is synthesized to a single piece of compressed data. The image data decoding apparatus comprises a separating section 1005-1 for separating the synthesized-compressed data to compressed data with every resolution, decoding sections 1005-2, 1005-3 for decoding separated and compressed data with a first resolution to obtain first high-resolution data and also decoding compressed data with a second resolution obtained from the separating section to obtain first low-resolution data, a conversion section 1005-4 for converting the first low-resolution data into second high-resolution data, and an image synthesis section 1005-5 for synthesizing the first and the second high-resolution data to obtain a decoded image signal.
    Type: Application
    Filed: September 15, 2005
    Publication date: March 15, 2007
    Inventors: Sunao Tabata, Nobuhiko Nakahara