Patents by Inventor Kazuhiko Takami

Kazuhiko Takami 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: 10297006
    Abstract: It is possible to stably reduce an amount of image data. An image processing system includes an image transmitting apparatus and an image receiving apparatus. The image transmitting apparatus includes an image reducing unit that reduces the size of an input image to generate a reduced image, a determining unit that determines, when the reduced image is enlarged to the size of the input image, an enlargement parameter where a difference from the input image becomes minimum and a transmitting unit that transmits the reduced image and the enlargement parameter. The image receiving apparatus includes a receiving unit that receives the reduced image and the enlargement parameter from the image transmitting apparatus and an image restoring unit that enlarges the reduced image using the enlargement parameter to generate a restored image.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: May 21, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Kentarou Niikura, Kazuhiko Takami, Kazuhiro Sugiyama
  • Publication number: 20170301061
    Abstract: It is possible to stably reduce an amount of image data. An image processing system includes an image transmitting apparatus and an image receiving apparatus. The image transmitting apparatus includes an image reducing unit that reduces the size of an input image to generate a reduced image, a determining unit that determines, when the reduced image is enlarged to the size of the input image, an enlargement parameter where a difference from the input image becomes minimum and a transmitting unit that transmits the reduced image and the enlargement parameter. The image receiving apparatus includes a receiving unit that receives the reduced image and the enlargement parameter from the image transmitting apparatus and an image restoring unit that enlarges the reduced image using the enlargement parameter to generate a restored image.
    Type: Application
    Filed: March 23, 2017
    Publication date: October 19, 2017
    Inventors: Kentarou NIIKURA, Kazuhiko Takami, Kazuhiro Sugiyama
  • Patent number: 9451174
    Abstract: A first control unit (172), which controls the timing at which a first image pickup unit (110) starts exposure, obtains a second difference (?t2) by subtracting a first difference (?t1) from an exposure-output time (AA) of the first image pickup unit (110), and outputs a first control signal (CTR1) for delaying the timing at which the first image pickup unit (110) starts an exposure, by the second difference (?t2). The exposure-output time is a time lag between when the image pickup unit starts an exposure and when output of an image signal obtained by the exposure is started. The first difference (?t1) is a difference between a timing at which the first image pickup unit (110) started outputting a predetermined image signal and a timing at which a second image pickup unit (150) started an exposure for obtaining an image signal that the second image pickup unit (150) outputted immediately after the first image pickup unit (110) started outputting the predetermined image signal.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: September 20, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Takeshi Hataguchi, Kazuhiko Takami
  • Publication number: 20150281541
    Abstract: A first control unit (172), which controls the timing at which a first image pickup unit (110) starts exposure, obtains a second difference (?t2) by subtracting a first difference (?t1) from an exposure-output time (AA) of the first image pickup unit (110), and outputs a first control signal (CTR1) for delaying the timing at which the first image pickup unit (110) starts an exposure, by the second difference (?t2). The exposure-output time is a time lag between when the image pickup unit starts an exposure and when output of an image signal obtained by the exposure is started. The first difference (?t1) is a difference between a timing at which the first image pickup unit (110) started outputting a predetermined image signal and a timing at which a second image pickup unit (150) started an exposure for obtaining an image signal that the second image pickup unit (150) outputted immediately after the first image pickup unit (110) started outputting the predetermined image signal.
    Type: Application
    Filed: June 12, 2015
    Publication date: October 1, 2015
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Takeshi HATAGUCHI, Kazuhiko TAKAMI
  • Patent number: 9088725
    Abstract: A first control unit, which controls the timing when a first image pickup unit starts exposure, obtains a second difference by subtracting a first difference from an exposure-output time of the first image pickup unit, and outputs a first control signal for delaying the timing when the first image pickup unit starts exposure, by the second difference. The exposure-output time is a time lag between when the image pickup unit starts exposure and when output of an image signal obtained by the exposure is started. The first difference is a difference between a timing at which the first image pickup unit started outputting a predetermined image signal and a timing at which a second image pickup unit started an exposure for obtaining an image signal that the second image pickup unit outputted immediately after the first image pickup unit started outputting the predetermined image signal.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: July 21, 2015
    Assignee: Renesas Electronics Corporation
    Inventors: Takeshi Hataguchi, Kazuhiko Takami
  • Publication number: 20130329127
    Abstract: A first control unit, which controls the timing when a first image pickup unit starts exposure, obtains a second difference by subtracting a first difference from an exposure-output time of the first image pickup unit, and outputs a first control signal for delaying the timing when the first image pickup unit starts exposure, by the second difference. The exposure-output time is a time lag between when the image pickup unit starts exposure and when output of an image signal obtained by the exposure is started. The first difference is a difference between a timing at which the first image pickup unit started outputting a predetermined image signal and a timing at which a second image pickup unit started an exposure for obtaining an image signal that the second image pickup unit outputted immediately after the first image pickup unit started outputting the predetermined image signal.
    Type: Application
    Filed: February 24, 2012
    Publication date: December 12, 2013
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Takeshi Hataguchi, Kazuhiko Takami
  • Patent number: 7773825
    Abstract: An image stabilization apparatus of the present invention includes a detection unit which detects an amount of an image blur between a plurality of image data, an evaluation unit which selects at least one image data to use in correcting image blur from the plurality of image data according to a result of the detection of the amount of image blur, and a correction unit which generates image data with its image blur corrected using the image data selected by the evaluation unit.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: August 10, 2010
    Assignee: NEC Electronics Corporation
    Inventors: Kentarou Niikura, Kazuhiko Takami, Takashi Nishida, Akitaka Oya
  • Publication number: 20070098291
    Abstract: An image stabilization apparatus of the present invention includes a detection unit which detects an amount of an image blur between a plurality of image data, an evaluation unit which selects at least one image data to use in correcting image blur from the plurality of image data according to a result of the detection of the amount of image blur, and a correction unit which generates image data with its image blur corrected using the image data selected by the evaluation unit.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 3, 2007
    Inventors: Kentarou Niikura, Kazuhiko Takami, Takashi Nishida, Akitaka Oya
  • Patent number: 7030852
    Abstract: A liquid crystal display (LCD) panel unit is provided with a plurality of source drivers which are functionally divided into first and second source driver groups respectively assigned to first and second halves of an LCD panel. In order to properly drive the LCD panel irrespective of incoming pixel data of different formats, a pixel data rearrangement circuit is provided for rearranging the incoming pixel data to a predetermined data format. The data rearrangement circuit precedes the first and second source driver groups, and functions such as to receive 2N-path (N is a natural number) pixel data and rearranges the orders of the 2N-path pixel data according to the predetermined data format, and applies the rearranged N-path pixel data to the first source driver group and applying the rearranged other N-path pixel data to the second source driver group.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: April 18, 2006
    Assignee: NEC LCD Technologies, Ltd.
    Inventors: Masahiro Ito, Kazuhiko Takami, Noboru Okuzono
  • Patent number: 6560148
    Abstract: Data of a plurality of memory cells are read on a plurality of first data lines and combined by a combination/rewrite circuit and transmitted on a second data line and the combined data is written back to the first data line. In combining data, the combination/rewrite circuit performs an addition. Mirrored data can be improved in reliability and a function of correcting an error of the mirror data can also be implemented.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: May 6, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiko Takami, Yoshito Nakaoka
  • Patent number: 6501310
    Abstract: The PLL (Phase Lock Loop) circuit generates a sampling clock for sampling an analog image signal and a second clock having a frequency equal to that of the sampling clock and a phase different from that of the sampling clock based on the horizontal synchronizing signal supplied together with the analog image signal. The measuring circuit counts the number of pulses of the sampling clock and the number of pulses of the second clock for a predetermined time period. The MPU (Micro Processing Unit) determines whether or not the numbers of pulses of the sampling clock and second clock have been counted correctly based on the number of pulses of the sampling clock and the number of pulses of the second clock. Then, the MPU adjusts the frequency and phase of the sampling clock, when it is determined that the numbers have been counted correctly.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: December 31, 2002
    Assignee: NEC Corporation
    Inventor: Kazuhiko Takami
  • Publication number: 20020149550
    Abstract: A liquid crystal display (LCD) panel unit is provided with a plurality of source drivers which are functionally divided into first and second source driver groups respectively assigned to first and second halves of an LCD panel. In order to properly drive the LCD panel irrespective of incoming pixel data of different formats, a pixel data rearrangement circuit is provided for rearranging the incoming pixel data to a predetermined data format. The data rearrangement circuit precedes the first and second source driver groups, and functions such as to receive 2N-path (N is a natural number) pixel data and rearranges the orders of the 2N-path pixel data according to the predetermined data format, and applies the rearranged N-path pixel data to the first source driver group and applying the rearranged other N-path pixel data to the second source driver group.
    Type: Application
    Filed: April 16, 2002
    Publication date: October 17, 2002
    Inventors: Masahiro Ito, Kazuhiko Takami, Noboru Okuzono
  • Publication number: 20020141252
    Abstract: Data of a plurality of memory cells are read on a plurality of first data lines and combined by a combination/rewrite circuit and transmitted on a second data line and the combined data is written back to the first data line. In combining data, the combination/rewrite circuit performs an addition. Mirrored data can be improved in reliability and a function of correcting an error of the mirror data can also be implemented.
    Type: Application
    Filed: October 17, 2001
    Publication date: October 3, 2002
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiko Takami, Yoshito Nakaoka
  • Publication number: 20010022523
    Abstract: The PLL (Phase Lock Loop) circuit generates a sampling clock for sampling an analog image signal and a second clock having a frequency equal to that of the sampling clock and a phase different from that of the sampling clock based on the horizontal synchronizing signal supplied together with the analog image signal. The measuring circuit counts the number of pulses of the sampling clock and the number of pulses of the second clock for a predetermined time period. The MPU (Micro Processing Unit) determines whether or not the numbers of pulses of the sampling clock and second clock have been counted correctly based on the number of pulses of the sampling clock and the number of pulses of the second clock. Then, the MPU adjusts the frequency and phase of the sampling clock, when it is determined that the numbers have been counted correctly.
    Type: Application
    Filed: March 15, 2001
    Publication date: September 20, 2001
    Inventor: Kazuhiko Takami
  • Patent number: 5970004
    Abstract: A semiconductor memory device according to the present invention includes a block determining portion determining a difference in arrangement between a normal cell and a spare cell which replaces it, a data scramble controlling circuit generating a scramble ON signal when a normal cell is replaced by a spare cell and the spare cell stores inverted data, a scramble circuit inverting data to be written in response to the scramble ON signal, and a scramble circuit inverting data to be read in response to the scramble ON signal.
    Type: Grant
    Filed: July 13, 1998
    Date of Patent: October 19, 1999
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Kazuhiko Takami, Kiyoomi Oshigoe, Mikio Asakura