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).

  • Publication number: 20060077270
    Abstract: An image sensing apparatus is provided, which is 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: November 30, 2005
    Publication date: April 13, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Osamu Yuki, Noriyuki Kaifu, Kazuaki Tashiro, Tetsunobu Kochi
  • Publication number: 20060066741
    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: November 15, 2005
    Publication date: March 30, 2006
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Toru Koizumi, Shigetoshi Sugawa, Tetsunobu Kochi
  • Patent number: 7016089
    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: December 4, 2000
    Date of Patent: March 21, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Patent number: 7015964
    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: Grant
    Filed: October 29, 1999
    Date of Patent: March 21, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Toru Koizumi, Shigetoshi Sugawa, Tetsunobu Kochi
  • Patent number: 6995800
    Abstract: In order to prevent an image quality from being lowered by shading and or the like, an image pickup apparatus is provided which includes an image pickup area including a plurality of photoelectric conversion areas, a plurality of converging lenses for converging light on a plurality of photoelectric conversion areas, and a light shielding area having a plurality of opening areas through which light is incident upon the plurality of photoelectric conversion areas, wherein positions of the converging lens and opening area are shifted inward than a corresponding photoelectric conversion area.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: February 7, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hidekazu Takahashi, Tetsunobu Kochi
  • Patent number: 6992714
    Abstract: An image pickup apparatus comprises a plurality of pixels arranged in a matrix form, first color filters arranged in an oblique direction for the pixels, second and third color filters arranged so that a same color is arranged in a horizontal direction, a circuit for adding together signals of two or more pixels each having the first color filter, which are adjacent to each other in an oblique direction, and a circuit for adding together the signals of two or more pixels each having the second color filter, which are arranged in a horizontal direction, and for adding together the signals of two or more pixels each having the third color filter, which are arranged in the horizontal direction.
    Type: Grant
    Filed: May 31, 2000
    Date of Patent: January 31, 2006
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiji Hashimoto, Mahito Shinohara, Tetsunobu Kochi, Hidetoshi Hayashi
  • Publication number: 20050270395
    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: Application
    Filed: August 8, 2005
    Publication date: December 8, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shunsuke Inoue, Tetsunobu Kochi, Hidekazu Takahashi, Masanori Ogura
  • Publication number: 20050253943
    Abstract: In order to prevent an image quality from being lowered by shading and or the like, an image pickup apparatus is provided which includes an image pickup area including a plurality of photoelectric conversion areas, a plurality of converging lenses for converging light on a plurality of photoelectric conversion areas, and a light shielding area having a plurality of opening areas through which light is incident upon the plurality of photoelectric conversion areas, wherein positions of the converging lens and opening area are shifted inward than a corresponding photoelectric conversion area.
    Type: Application
    Filed: July 14, 2005
    Publication date: November 17, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Hidekazu Takahashi, Tetsunobu Kochi
  • Patent number: 6963372
    Abstract: In a solid-state image sensing apparatus, each pixel includes a photodiode, a MOS amplifier whose gate receives photo-charge generated by the photodiode, and a MOS switch for controlling connection between the photodiode and the gate of the MOS amplifier, and transference of the photo-charge from the photodiode to the gate of the MOS amplifier is performed under a condition that a channel is formed under the gate of the MOS amplifier.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: November 8, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroki Hiyama, Shigetoshi Sugawa, Isamu Ueno, Toru Koizumi, Tetsunobu Kochi, Katsuhito Sakurai
  • Patent number: 6952228
    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: October 10, 2001
    Date of Patent: October 4, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shunsuke Inoue, Tetsunobu Kochi, Hidekazu Takahashi, Masanori Ogura
  • Publication number: 20050206763
    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: March 11, 2005
    Publication date: September 22, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsunobu Kochi, Kazuo Yamazaki, Hiraku Kozuka
  • Patent number: 6946637
    Abstract: In a photoelectric conversion device having a plurality of pixel cells each of which includes a photoelectric conversion element, a field effect transistor having the gate area for storing signal charge generated by the photoelectric conversion element and the source-drain path for outputting a signal corresponding to the signal charge stored in the gate, a first power supply line for supplying electric power to the field effect transistor, and a first switch connected between the field effect transistor and the first power supply line, when a reset voltage for resetting the gate of the field effect transistor is Vsig0, a threshold voltage of the field effect transistor is Vth, current flowing through the field effect transistor is Ia, a voltage applied via the first power supply line is Vc1, and a series resistance of the first switch is Ron, each pixel cell is configured to satisfy a condition determined by Vc1?RonĂ—Ia>Vsig0?Vth.
    Type: Grant
    Filed: October 8, 2003
    Date of Patent: September 20, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsunobu Kochi, Shigetoshi Sugawa, Isamu Ueno, Katsuhisa Ogawa, Toru Koizumi, Katsuhito Sakurai, Hiroki Hiyama
  • Patent number: 6947088
    Abstract: To implement a solid-state image pickup element in which the peripheral circuit is downsized, there is provided a solid-state image pickup element including a plurality of pixel blocks each having a plurality of photoelectric conversion elements, a plurality of transfer switches each having one terminal connected to a corresponding photoelectric conversion element, a signal input portion commonly connected to the other terminal of each of the plurality of transfer switches, and an amplifier connected to the signal input portion, and a scanning circuit for outputting a scanning clock for each pixel block.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: September 20, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tetsunobu Kochi
  • Publication number: 20050185074
    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: April 13, 2005
    Publication date: August 25, 2005
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
  • Patent number: 6914227
    Abstract: An image sensing apparatus has a plurality of pixels, and can output an image by converting its resolution by adding and reading out pixels for respective pixel groups each including a predetermined number of pixels of the plurality of pixels. Each pixel has a photoelectric conversion unit, an amplifier for amplifying and outputting a signal from the photoelectric conversion unit, and a capacitor connected to the output of the amplifier. The apparatus has a plurality of switches for commonly connecting between the capacitors of two or more pixels of the plurality of pixels.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: July 5, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Noriyuki Kaifu, Shin Kikuchi, Kazuaki Tashiro, Tetsunobu Kochi, Osamu Yuki, Tomoyuki Noda
  • Patent number: 6898310
    Abstract: An image signal processing method and system, which can greatly reduce the data size upon transmitting an image signal or storing the signal in a storage medium, and can obtain a high-quality image by preventing image quality after color processing from deteriorating. According to the method for processing an image signal output from an image sensing element, a compression step of compressing the image signal and an expansion step of expanding the compressed image signal are executed without executing color processing for executing at least white balance correction or correction, and the color processing is executed after completion of the compression and expansion steps, thereby preventing occurrence of block noise and high-frequency noise associated with compressing/expanding image data after the color processing of the image signal.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: May 24, 2005
    Inventors: Tadahiro Ohmi, Shigetoshi Sugawa, Isamu Ueno, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Katsuhito Sakurai, Takahiro Nakayama, Tatsuo Morimoto
  • Publication number: 20050052554
    Abstract: This invention is to provide a solid-state image pickup apparatus including a photoelectric conversion unit (PD), transfer switch (MTX) for transferring signal charges from the photoelectric conversion unit, capacitance for holding the transferred signal charges, and amplification transistor (MSF) for outputting a signal corresponding to the signal charges held by the capacitance. The amplification transistor includes a capacitance unit (CFD) having the first capacitance value and an additive capacitance unit (Cox) for adding a capacitance to the capacitance unit to increase the first capacitance value and obtain the second capacitance value. A signal read-out from the amplification transistor has a first read-out mode in which a signal is read out while keeping the signal charges held by the capacitance unit and additive capacitance unit, and a second read-out mode in which a signal is read out while keeping the signal charges held by the capacitance unit.
    Type: Application
    Filed: October 19, 2004
    Publication date: March 10, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Katsuhito Sakurai, Shigetoshi Sugawa, Hideyuki Arai, Isamu Ueno, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
  • Publication number: 20050035271
    Abstract: A solid-state imaging device includes a plurality of pixels each including a photoelectric conversion element and a signal amplification element which receives a signal from the photoelectric conversion element to amplify and output the signal, a signal amplifier including a first input terminal which receives the signal from the signal amplification element and a second input terminal into which a reference voltage is input, and a reference electric power supply, which supplies the reference voltage to the second input terminal of the signal amplifier, the reference electric power supply including a circuit configuration equivalent to the signal amplification element.
    Type: Application
    Filed: July 12, 2004
    Publication date: February 17, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Tetsunobu Kochi, Koji Sawada
  • Publication number: 20050023438
    Abstract: An image pickup device has a plurality of photoelectric converter substrates carrying respective input/output terminals connected to the photoelectric converters. The device comprises leads connected to the input/output terminals and extending to the side opposite to the light receiving surfaces of the photoelectric converter substrates thorough the gaps separating the substrates.
    Type: Application
    Filed: August 24, 2004
    Publication date: February 3, 2005
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Osamu Hamamoto, Yoshinori Shimamura, Noriyuki Kaifu, Kazuaki Tashiro, Tetsunobu Kochi, Osamu Yuki, Kenji Kajiwara
  • Patent number: 6850278
    Abstract: This invention is to provide a solid-state image pickup apparatus including a photoelectric conversion unit (PD), transfer switch (MTX) for transferring signal charges from the photoelectric conversion unit, capacitance for holding the transferred signal charges, and amplification transistor (MSF) for outputting a signal corresponding to the signal charges held by the capacitance. The amplification transistor includes a capacitance unit (CFD) having the first capacitance value and an additive capacitance unit (Cox) for adding a capacitance to the capacitance unit to increase the first capacitance value and obtain the second capacitance value. A signal read-out from the amplification transistor has a first read-out mode in which a signal is read out while keeping the signal charges held by the capacitance unit and additive capacitance unit, and a second read-out mode in which a signal is read out while keeping the signal charges held by the capacitance unit.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: February 1, 2005
    Assignee: Canon Kabushiki Kaisha
    Inventors: Katsuhito Sakurai, Shigetoshi Sugawa, Hideyuki Arai, Isamu Ueno, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama