Patents by Inventor Tetsunobu Kochi

Tetsunobu Kochi 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: 7724292
    Abstract: An image pickup apparatus having a plurality of pixels; and a color filter array of four colors disposed on the plurality of pixels, wherein the color filter away has a periodicity of two rows×two columns, and colors of four color filters in a periodical unit of two rows×two columns are all different.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: May 25, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isamu Ueno, Shigetoshi Sugawa, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Katsuhito Sakurai, Hiroki Hiyama
  • Publication number: 20100079648
    Abstract: A driving method of a solid-state imaging apparatus including multiple reference level supplying units each arranged correspondingly to a predetermined number of signal holding units, to supply a reference level to an output node of the signal holding unit through the selecting unit, wherein the method includes steps of: performing a clamping operation for sampling and holding the signal in the signal holding unit, by terminating turn ON pulses to be supplied to the selecting units successively in separate timings, one for each one of the selecting units, or one for each group of the selecting units while the reference level is supplied from the reference level supplying unit to the output node; and performing an operation of selecting the signal holding units through the selecting units, by supplying the turn ON pulses successively to the selecting units, to read out the signals successively from the signal holding units selected.
    Type: Application
    Filed: September 10, 2009
    Publication date: April 1, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hirofumi Totsuka, Tomohisa Kinugasa, Tetsunobu Kochi
  • Patent number: 7688371
    Abstract: This invention provides an image pickup device comprising a plurality of pixels each including a photoelectric conversion unit, a semiconductor area to which a signal from the photoelectric conversion unit is transferred, a transfer switch for transferring the signal from the photoelectric conversion unit to the semiconductor area, and a read unit for reading out the signal from the semiconductor area, and a drive circuit for outputting a first level at which the transfer switch is set in an OFF state, a second level at which the transfer switch is set in an ON state, and a third level between the first level and the second level, wherein the drive circuit controls to hold the third level for a predetermined time while the transfer switch is changing from the ON state to the OFF state.
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: March 30, 2010
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
  • Publication number: 20100073537
    Abstract: A solid-state imaging apparatus has a plurality of pixels arranged linearly along columns of N, a plurality of clamping capacitors each arranged corresponding to each column of the pixels, for accumulating the charge amplified by an amplifying unit in the pixel, a common node arranged corresponding to each set including the clamping capacitors of L (L is equal to or larger than 2, and a divisor of N), and connectable to each set including the clamping capacitors of L, a plurality of pixel selection switches each connected between the clamping capacitor and the common node, a clamping unit for clamping the common nodes to a reference potential, and a sampling and holding circuit connected to the common nodes through the clamping unit, and sampling and holding a charge corresponding to a charge of the common node.
    Type: Application
    Filed: September 17, 2009
    Publication date: March 25, 2010
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Satoshi Kato, Tetsunobu Kochi
  • Publication number: 20100006744
    Abstract: The invention provides a photoelectric conversion device, in which a decrease in sensitivity and a crosstalk between wirings are suppressed. Plural pixel columns are arranged in one direction, plural pixels are arranged in a different direction to the one direction in a column manner in the pixel column, and the pixel includes a photodiode PD, a reset transistor M4 for resetting the photodiode PD, and a source follower input transistor M3 for receiving a signal from the photodiode PD. An independent readout wiring 16 is individually provided for each pixel. The reset transistor M4 and the source follower input transistor M3 included in one pixel column or another pixel column are arranged between the photodiode column in one pixel column and the photodiode column in another pixel column arranged adjacent to the one pixel column.
    Type: Application
    Filed: August 27, 2009
    Publication date: January 14, 2010
    Applicant: CANON KABUSHI KAISHA
    Inventor: Tetsunobu Kochi
  • Patent number: 7639295
    Abstract: An image sensing apparatus provided with a plurality of image sensing elements each including a plurality of photoelectric conversion sections and an adding circuit adapted to add signals from the plurality of photoelectric conversion sections to obtain a one-pixel signal, wherein the adding circuit adds the signals obtained by the addition are arranged at equal intervals in an area extending over the plurality of image sensing elements.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 29, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Osamu Yuki, Noriyuki Kaifu, Kazuaki Tashiro, Tetsunobu Kochi
  • Patent number: 7639297
    Abstract: An image pickup apparatus is provided, which comprises a plurality of image pickup areas formed on a same semiconductor chip and arranged in the horizontal and the vertical directions, each image pickup area having a plurality of pixels arranged in the horizontal and the vertical directions, a plurality of vertical scanning circuits which sequentially scan pixels in the vertical direction to scan a plurality of image pickup areas in the vertical direction independently from each other, a plurality of lenses, at least one of which is provided in each of the plurality of image pickup areas and which focuses light to form an image on the image pickup areas, and a driving circuit which drives the plurality of vertical scanning circuits so that at least a part of a scanning period of each of the plurality of vertical scanning circuits overlaps with each other.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: December 29, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shunsuke Inoue, Tetsunobu Kochi, Hidekazu Takahashi, Masanori Ogura
  • Patent number: 7630010
    Abstract: An image sensing apparatus provided with a plurality of image sensing elements each including a plurality of photoelectric conversion sections and an adding circuit adapted to add signals from the plurality of photoelectric conversion sections to obtain a one-pixel signal, wherein the adding circuit adds the signals such that the one-pixel signals obtained by the addition are arranged at equal intervals in an area extending over the plurality of image sensing elements.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 8, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Osamu Yuki, Noriyuki Kaifu, Kazuaki Tashiro, Tetsunobu Kochi
  • Publication number: 20090295974
    Abstract: A solid-state image pickup device comprises for each pixel a photoelectric converter PD, an input terminal FD of a signal amplifier and a transfer switch TX for transferring an optical signal from the photoelectric converter to the input terminal. The device additionally comprises means for resetting the photoelectric converter by opening the transfer switch TX under a condition of holding the voltage of the input terminal FD to a fixed high level before storing the optical signal in the photoelectric converter PD. With this arrangement, any residual electric charge in the photoelectric converter can be eliminated without paying the cost of reducing the manufacturing yield and degrading the chip performance.
    Type: Application
    Filed: August 12, 2009
    Publication date: December 3, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toru Koizumi, Shigetoshi Sugawa, Tetsunobu Kochi
  • Patent number: 7616355
    Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: November 10, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Publication number: 20090230310
    Abstract: An image sensing apparatus provided with a plurality of image sensing elements each including a plurality of photoelectric conversion sections and an adding circuit adapted to add signals from the plurality of photoelectric conversion sections to obtain a one-pixel signal, wherein the adding circuit adds the signals such that the one-pixel signals obtained by the addition are arranged at equal intervals in an area extending over the plurality of image sensing elements.
    Type: Application
    Filed: April 21, 2009
    Publication date: September 17, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: OSAMU YUKI, NORIYUKI KAIFU, KAZUAKI TASHIRO, TETSUNOBU KOCHI
  • Patent number: 7566857
    Abstract: The invention is to suppress a loss in image quality resulting from a sensitivity difference among different colors and to suppress an increase in a chip area. The invention provides for example an image sensor including three light detecting element rows respectively having R, G and B color filters on light detecting apertures, in which the light detecting element in the G light detecting element row has a light detecting area larger than that of the light detecting element in other B and R light detecting element rows and centers of gravity of light detecting parts of the light detecting elements in the respective light detecting element rows are arranged with a constant pitch (pitch Q) among the light detecting element rows and in which the G light detecting element row with a larger light detecting area in the light detecting element is not positioned as an end row among the R, G and B light detecting element rows but as a central light detecting element row.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: July 28, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsunobu Kochi
  • Publication number: 20090141157
    Abstract: An image sensing apparatus includes an output unit including a first output line which transmits a first signal of the first pixel, a second output line which transmits a second signal of the first pixel, a third output line which transmits a first signal of the second pixel, a fourth output line which transmits a second signal of the second pixel, a first difference circuit which operates the difference between the first signal and the second signal of the first pixel to generate a first image signal, and a second difference circuit which operates the difference between the first signal and the second signal of the second pixel to generate a second image signal, wherein the first output line is arranged between the third output line and the fourth output line, and the third output line is arranged between the first output line and the second output line.
    Type: Application
    Filed: November 10, 2008
    Publication date: June 4, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Hideo Kobayashi, Tetsunobu Kochi, Hirofumi Totsuka
  • Publication number: 20090128659
    Abstract: This invention provides an image pickup device comprising a plurality of pixels each including a photoelectric conversion unit, a semiconductor area to which a signal from the photoelectric conversion unit is transferred, a transfer switch for transferring the signal from the photoelectric conversion unit to the semiconductor area, and a read unit for reading out the signal from the semiconductor area, and a drive circuit for outputting a first level at which the transfer switch is set in an OFF state, a second level at which the transfer switch is set in an ON state, and a third level between the first level and the second level, wherein the drive circuit controls to hold the third level for a predetermined time while the transfer switch is changing from the ON state to the OFF state.
    Type: Application
    Filed: January 6, 2009
    Publication date: May 21, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
  • Publication number: 20090101799
    Abstract: The invention is to suppress a loss in image quality resulting from a sensitivity difference among different colors and to suppress an increase in a chip area. The invention provides for example an image sensor including three light detecting element rows respectively having R, G and B color filters on light detecting apertures, in which the light detecting element in the G light detecting element row has a light detecting area larger than that of the light detecting element in other B and R light detecting element rows and centers of gravity of light detecting parts of the light detecting elements in the respective light detecting element rows are arranged with a constant pitch (pitch Q) among the light detecting element rows and in which the G light detecting element row with a larger light detecting area in the light detecting element is not positioned as an end row among the R, G and B light detecting element rows but as a central light detecting element row.
    Type: Application
    Filed: December 3, 2008
    Publication date: April 23, 2009
    Applicant: Canon Kabushiki Kaisha
    Inventor: Tetsunobu Kochi
  • Publication number: 20090073291
    Abstract: To control the potential distribution generated in a well at the time of amplification and reduce a shading in a solid-state imaging device of amplification type, the amplification type solid-state imaging device of the present invention comprises a plurality of picture elements each including photoelectric conversion elements formed in a second conductivity type common well inside a first conductivity type substrate, wherein a plurality of well contacts are disposed inside a picture element array area.
    Type: Application
    Filed: November 5, 2008
    Publication date: March 19, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Publication number: 20090050993
    Abstract: A pixel space is narrowed without increasing PN junction capacitance. A photoelectric conversion device includes a plurality of pixels arranged therein, each including a first impurity region of a first conductivity type forming a photoelectric conversion region, a second impurity region of a second conductivity type forming a signal acquisition region arranged in the first impurity region, a third impurity region of the first conductivity type and a fourth impurity region of the first conductivity type are arranged in a periphery of each pixel for isolating the each pixel, the fourth impurity region is disposed between adjacent pixels, and an impurity concentration of the fourth impurity region is smaller than an impurity concentration of the third impurity region.
    Type: Application
    Filed: August 4, 2008
    Publication date: February 26, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kazuo Yamazaki, Tetsunobu Kochi
  • Patent number: 7473882
    Abstract: The invention is to suppress a loss in image quality resulting from a sensitivity difference among different colors and to suppress an increase in a chip area. The invention provides for example an image sensor including three light detecting element rows respectively having R, G and B color filters on light detecting apertures, in which the light detecting element in the G light detecting element row has a light detecting area larger than that of the light detecting element in other B and R light detecting element rows and centers of gravity of light detecting parts of the light detecting elements in the respective light detecting element rows are arranged with a constant pitch (pitch Q) among the light detecting element rows and in which the G light detecting element row with a larger light detecting area in the light detecting element is not positioned as an end row among the R, G and B light detecting element rows but as a central light detecting element row.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: January 6, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsunobu Kochi
  • Patent number: 7456882
    Abstract: An image pickup device includes pixels each including a photoelectric conversion unit and a transfer switch for transferring a photoelectric conversion signal generated by the photoelectric conversion unit, and a driver for applying a pulse to the transfer switch a plurality of times when the signal generated by the photoelectric conversion unit is transferred via the transfer switch.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: November 25, 2008
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Hiyama, Shigetoshi Sugawa, Isamu Ueno, Toru Koizumi, Tetsunobu Kochi, Katsuhito Sakurai, Yuichiro Yamashita, Tomoya Yoneda
  • Publication number: 20080278611
    Abstract: To prevent such a situation that a signal from a pixel in a dark state is output at a level shifted from an originally set level to deteriorate an image quality, and to improve the image quality.
    Type: Application
    Filed: July 18, 2008
    Publication date: November 13, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsunobu Kochi, Kazuo Yamazaki, Hiraku Kozuka