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).
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Patent number: 7724292Abstract: 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: GrantFiled: June 23, 2006Date of Patent: May 25, 2010Assignee: Canon Kabushiki KaishaInventors: Isamu Ueno, Shigetoshi Sugawa, Katsuhisa Ogawa, Toru Koizumi, Tetsunobu Kochi, Katsuhito Sakurai, Hiroki Hiyama
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Publication number: 20100079648Abstract: 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: ApplicationFiled: September 10, 2009Publication date: April 1, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Hirofumi Totsuka, Tomohisa Kinugasa, Tetsunobu Kochi
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Patent number: 7688371Abstract: 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: GrantFiled: August 15, 2001Date of Patent: March 30, 2010Assignee: Canon Kabushiki KaishaInventors: Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
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Publication number: 20100073537Abstract: 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: ApplicationFiled: September 17, 2009Publication date: March 25, 2010Applicant: CANON KABUSHIKI KAISHAInventors: Satoshi Kato, Tetsunobu Kochi
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Publication number: 20100006744Abstract: 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: ApplicationFiled: August 27, 2009Publication date: January 14, 2010Applicant: CANON KABUSHI KAISHAInventor: Tetsunobu Kochi
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Patent number: 7639295Abstract: 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: GrantFiled: November 30, 2005Date of Patent: December 29, 2009Assignee: Canon Kabushiki KaishaInventors: Osamu Yuki, Noriyuki Kaifu, Kazuaki Tashiro, Tetsunobu Kochi
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Patent number: 7639297Abstract: 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: GrantFiled: August 8, 2005Date of Patent: December 29, 2009Assignee: Canon Kabushiki KaishaInventors: Tomoya Yoneda, Shunsuke Inoue, Tetsunobu Kochi, Hidekazu Takahashi, Masanori Ogura
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Patent number: 7630010Abstract: 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: GrantFiled: November 30, 2005Date of Patent: December 8, 2009Assignee: Canon Kabushiki KaishaInventors: Osamu Yuki, Noriyuki Kaifu, Kazuaki Tashiro, Tetsunobu Kochi
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Publication number: 20090295974Abstract: 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: ApplicationFiled: August 12, 2009Publication date: December 3, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Toru Koizumi, Shigetoshi Sugawa, Tetsunobu Kochi
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Patent number: 7616355Abstract: 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: GrantFiled: April 13, 2005Date of Patent: November 10, 2009Assignee: Canon Kabushiki KaishaInventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
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Publication number: 20090230310Abstract: 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: ApplicationFiled: April 21, 2009Publication date: September 17, 2009Applicant: CANON KABUSHIKI KAISHAInventors: OSAMU YUKI, NORIYUKI KAIFU, KAZUAKI TASHIRO, TETSUNOBU KOCHI
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Patent number: 7566857Abstract: 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: GrantFiled: December 3, 2008Date of Patent: July 28, 2009Assignee: Canon Kabushiki KaishaInventor: Tetsunobu Kochi
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Publication number: 20090141157Abstract: 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: ApplicationFiled: November 10, 2008Publication date: June 4, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Hideo Kobayashi, Tetsunobu Kochi, Hirofumi Totsuka
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Publication number: 20090128659Abstract: 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: ApplicationFiled: January 6, 2009Publication date: May 21, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Toru Koizumi, Tetsunobu Kochi, Hiroki Hiyama
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Publication number: 20090101799Abstract: 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: ApplicationFiled: December 3, 2008Publication date: April 23, 2009Applicant: Canon Kabushiki KaishaInventor: Tetsunobu Kochi
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Publication number: 20090073291Abstract: 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: ApplicationFiled: November 5, 2008Publication date: March 19, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Tomoya Yoneda, Shigetoshi Sugawa, Toru Koizumi, Tetsunobu Kochi
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Publication number: 20090050993Abstract: 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: ApplicationFiled: August 4, 2008Publication date: February 26, 2009Applicant: CANON KABUSHIKI KAISHAInventors: Kazuo Yamazaki, Tetsunobu Kochi
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Patent number: 7473882Abstract: 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: GrantFiled: January 3, 2008Date of Patent: January 6, 2009Assignee: Canon Kabushiki KaishaInventor: Tetsunobu Kochi
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Patent number: 7456882Abstract: 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: GrantFiled: July 26, 2000Date of Patent: November 25, 2008Assignee: Canon Kabushiki KaishaInventors: Hiroki Hiyama, Shigetoshi Sugawa, Isamu Ueno, Toru Koizumi, Tetsunobu Kochi, Katsuhito Sakurai, Yuichiro Yamashita, Tomoya Yoneda
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Publication number: 20080278611Abstract: 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: ApplicationFiled: July 18, 2008Publication date: November 13, 2008Applicant: CANON KABUSHIKI KAISHAInventors: Tetsunobu Kochi, Kazuo Yamazaki, Hiraku Kozuka