Patents by Inventor Michiru Senda
Michiru Senda 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: 8970463Abstract: A signal transmission apparatus including electrostatic discharge protection circuits arranged between a signal line and a wiring line of plural pixel wiring lines, each having a first transistor and a capacitor device; and a first control line connected to the electrostatic discharge protection circuits, wherein, in the electrostatic discharge protection circuit, a gate of the first transistor is connected to the first control line, one of a source and a drain in the first transistor is connected to one signal line and one terminal of the capacitor device as well as the other is connected to another wiring line, and the other terminal of the capacitor device is connected to the gate of the first transistor.Type: GrantFiled: May 10, 2012Date of Patent: March 3, 2015Assignee: Sony CorporationInventor: Michiru Senda
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Patent number: 8952336Abstract: An image pickup device includes: an image pickup section including a plurality of pixels; and a drive section reading a signal charge stored in each of the pixels. Each of the pixels includes: a circuit layer including a field-effect transistor, a signal line, and a holding capacitive element; a first electrode provided on the circuit layer and arranged for each of the pixels; a semiconductor layer provided on the first electrode across the pixels, and generating the signal charge based on incident radiation; a second electrode provided on the semiconductor layer; and a third electrode disposed in a region that is between the circuit layer and the semiconductor layer and that is not in opposition to the first electrode, and controlled in voltage by the drive section.Type: GrantFiled: February 26, 2013Date of Patent: February 10, 2015Assignee: Sony CorporationInventors: Michiru Senda, Tsutomu Tanaka
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Patent number: 8928773Abstract: An image pickup unit includes: an image pickup section including a plurality of pixels, the pixels each including a photoelectric transducer and a field-effect transistor; and a drive section switching the transistor between an on operation and an off operation to perform a read operation and a reset operation of a signal charge accumulated in each of the pixels. The transistor includes a first gate electrode and a second gate electrode with a semiconductor layer in between, the drive section applies a first voltage and a second voltage to the first gate electrode and the second gate electrode of the transistor, respectively, to switch the transistor between the on operation and the off operation, and the drive section adjusts timings of switching the first and second voltages between an on-voltage and an off-voltage, on-voltage values of the first and second voltages, or both thereof to be different from each other.Type: GrantFiled: October 12, 2012Date of Patent: January 6, 2015Assignee: Sony CorporationInventors: Yasuhiro Yamada, Tsutomu Tanaka, Michiru Senda
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Patent number: 8901504Abstract: An image pickup unit including: an image pickup section including pixels, each of the pixels including a photoelectric conversion device; and a drive section performing a line-sequential readout drive and a line-sequential reset drive. The drive section intermittently performs the line-sequential reset drive multiple times during one frame period, to allow a non-overlap period to be provided at least in part of reset operation periods in an overlap period. The overlap period is a period during which a drive period of one of the multiple line-sequential reset drives and a drive period of one of the remaining multiple line-sequential reset drives are overlapped. The non-overlap period is a period during which each of the reset operations by the one of the multiple line-sequential drives is not overlapped with any of the reset operations by the one of the remaining multiple line-sequential reset drives.Type: GrantFiled: August 10, 2012Date of Patent: December 2, 2014Assignee: Sony CorporationInventors: Michiru Senda, Shinji Fujimoto
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Publication number: 20140347536Abstract: Provided is an image pickup device that includes: pixels each including a photoelectric conversion element and one or more switching elements; control lines provided to perform open/close control of at least one first switching element; a buffer circuit provided for each control line, and configured to output a voltage to each control line; second switching elements each provided between corresponding one of the control lines and a power source of the corresponding buffer circuit; and a switch control circuit that is, upon image pickup driving, configured to control one of the second switching elements, provided between a defect holding line that includes an electrically short-circuited part in the plurality of control lines and the power source of the buffer circuit of the defect holding line, to be in an open state, and configured to control another one of the second switching elements to be in a closed state.Type: ApplicationFiled: May 15, 2014Publication date: November 27, 2014Applicant: Sony CorporationInventor: Michiru Senda
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Patent number: 8859978Abstract: A radiation image pickup device includes: an image pickup section having a plurality of pixels and generating an electric signal according to incident radiation, the plurality of pixels each including a photoelectric conversion element and one or a plurality of transistors of a predetermined amplifier circuit; and a correction section subjecting signal data of the electric signal obtained in the image pickup section to predetermined correction process. The correction section makes a comparison between measurement data obtained by measuring an input-output characteristic of the amplifier circuit in each of the plurality of pixels and initial data on the input-output characteristic, and performs the correction process by the pixel individually, by using a result of the comparison.Type: GrantFiled: November 5, 2013Date of Patent: October 14, 2014Assignee: Sony CorporationInventors: Michiru Senda, Tsutomu Tanaka, Tsutomu Harada
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Patent number: 8823622Abstract: A liquid crystal display includes a plurality of gate lines having odd-numbered gate lines and even-numbered gate lines, a plurality of source lines, a first gate driver which drives the odd-numbered gate lines, a second gate driver which drives the even-numbered gate lines and a driving controller which outputs an overdriven image signal in at least one driving period of a plurality of driving periods and outputs a normal image signal in remaining driving periods of the plurality of driving periods. The overdriven image signal is obtained by adding an overdrive voltage to the normal image signal, and the overdrive voltage is set according to a level of the normal image signal.Type: GrantFiled: October 31, 2007Date of Patent: September 2, 2014Assignee: Samsung Display Co., Ltd.Inventors: Michiru Senda, Ryoichi Yokoyama
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Patent number: 8816733Abstract: A delay locked-loop circuit includes: a phase comparator detecting a phase difference between an external clock and an internal clock; an up/down counter controlling a delay time in accordance with an output signal from the phase comparator; and a delay line including plural unit delay circuits corresponding to plural bits of a signal output from the up/down counter in order to control the delay of the external clock to conform the external clock to the internal clock, and in which the unit delay circuits controlled by the output from a same bit in the output from the up/down counter are not connected adjacently to each other in the connection of the plural unit delay circuits in series.Type: GrantFiled: February 27, 2009Date of Patent: August 26, 2014Assignee: Japan Display West Inc.Inventors: Hiroshi Mizuhashi, Michiru Senda, Gen Koide
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Patent number: 8773368Abstract: An information input device includes an input panel including an illumination light source, a plurality of first light-receiving elements and one or more second light-receiving elements, the illumination light source emitting detection light for detecting an external proximity object, the plurality of first light-receiving elements receiving detection light emitted from the illumination light source and then reflected from the external proximity object, the second light-receiving elements for monitoring the intensity of the detection light; a correction section performing adaptive sensitivity correction on light-receiving signals obtained by the first light-receiving elements through use of an intensity monitor signal of detection light obtained by the second light-receiving element; and an image processing section obtaining object information about one or more of the position, shape and size of the external proximity object based on a picked-up image obtained from the light-receiving signals subjected to theType: GrantFiled: January 12, 2010Date of Patent: July 8, 2014Assignee: Japan Display West, Inc.Inventors: Michiru Senda, Yoshiharu Nakajima, Tsutomu Harada, Go Yamanaka, Daisuke Takama
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Patent number: 8773415Abstract: A display device with an image pickup function includes: a plurality of pixel signal lines each supplied with a pixel signal; a plurality of display pixels each performing a display operation based on the pixel signal; and a plurality of image pickup elements each including a photo-detector and a capacitor, the photo-detector generating a current of a magnitude corresponding to a photo-detection amount, the capacitor performing a discharging operation which follows a charging operation with the current from the photo-detector to output a charged voltage for a read operation. In the display device, a voltage level of the pixel signal line during the discharging operation is equal to a voltage level of the pixel signal line during the reading operation.Type: GrantFiled: November 2, 2010Date of Patent: July 8, 2014Assignee: Japan Display West Inc.Inventors: Hideyuki Omori, Go Yamanaka, Michiru Senda, Yoshiharu Nakajima
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Publication number: 20140061484Abstract: A radiation image pickup device includes: an image pickup section having a plurality of pixels and generating an electric signal according to incident radiation, the plurality of pixels each including a photoelectric conversion element and one or a plurality of transistors of a predetermined amplifier circuit; and a correction section subjecting signal data of the electric signal obtained in the image pickup section to predetermined correction process. The correction section makes a comparison between measurement data obtained by measuring an input-output characteristic of the amplifier circuit in each of the plurality of pixels and initial data on the input-output characteristic, and performs the correction process by the pixel individually, by using a result of the comparison.Type: ApplicationFiled: November 5, 2013Publication date: March 6, 2014Applicant: SONY CORPORATIONInventors: Michiru Senda, Tsutomu Tanaka, Tsutomu Harada
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Patent number: 8665243Abstract: A sensor device includes sensor elements arranged in a matrix form, and a sensor driving section driving the sensor elements. Each of the sensor elements includes a photoelectric conversion element generating electric charge, a storage node storing electric charge, to show a voltage which fluctuates according to the stored electric charge, a reset transistor resetting the voltage in the storage node and a readout section reading the voltage value resulted from the stored electric charge in the storage node, to output the resultant voltage value. The sensor driving section controls the reset transistor so that the storage nodes of the sensor elements over sensor element lines are reset into the predetermined reset voltage at a time, and then performs read control after a lapse of a predetermined exposure period to allow the sensor detection signals to be sequentially outputted from the respective sensor elements arranged in each sensor element lines.Type: GrantFiled: November 16, 2010Date of Patent: March 4, 2014Assignee: Japan Display West Inc.Inventors: Michiru Senda, Makoto Takatoku
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Publication number: 20140022426Abstract: An image pickup unit includes: a signal generating section generating a pulse signal that makes transitions between a first voltage and a low-noise second voltage; a voltage holding section holding a difference between a voltage of the pulse signal and a voltage of an output node; a voltage setting section that generates a pixel selection signal through setting the voltage of the output node to a third voltage in correspondence to a transition of the pulse signal from the second voltage to the first voltage, and outputs the pixel selection signal from the output node; and an image pickup section driven by the pixel selection signal.Type: ApplicationFiled: July 16, 2013Publication date: January 23, 2014Applicant: SONY CORPORATIONInventors: Yuichiro Minami, Michiru Senda, Tsutomu Harada, Masayuki Katakura
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Patent number: 8618492Abstract: A radiation image pickup device includes: an image pickup section having a plurality of pixels and generating an electric signal according to incident radiation, the plurality of pixels each including a photoelectric conversion element and one or a plurality of transistors of a predetermined amplifier circuit; and a correction section subjecting signal data of the electric signal obtained in the image pickup section to predetermined correction process. The correction section makes a comparison between measurement data obtained by measuring an input-output characteristic of the amplifier circuit in each of the plurality of pixels and initial data on the input-output characteristic, and performs the correction process by the pixel individually, by using a result of the comparison.Type: GrantFiled: July 28, 2011Date of Patent: December 31, 2013Assignee: Sony CorporationInventors: Michiru Senda, Tsutomu Tanaka, Tsutomu Harada
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Patent number: 8593442Abstract: Techniques are described for detecting and compensating for characteristic changes of a photoelectric conversion element, such as changes related to the temperature of the photoelectric conversion element. A display device that includes an I/O display panel and a light-receiving drive circuit is disclosed. The I/O display panel includes a plurality of display pixels; and a plurality of photoelectric conversion elements including a first photoelectric conversion element that substantially is shielded from light and a second photoelectric conversion element that is exposed to light. The light-receiving drive circuit receives a first detection signal from the first photoelectric conversion element and resets the second photoelectric conversion element based on the first detection signal.Type: GrantFiled: November 8, 2010Date of Patent: November 26, 2013Assignee: Japan Display West Inc.Inventors: Michiru Senda, Makoto Takatoku, Tsutomu Harada
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Publication number: 20130300963Abstract: A liquid crystal display includes a plurality of pixels, each of which includes a thin film transistor (TFT), a gate line supplying a driving signal to a gate of the TFT of each pixel, a liquid crystal capacitor included in each pixel and connected to one terminal of the TFT in a corresponding pixel, a sub-capacitor line aligned in parallel to the gate line, a sub-capacitor included in each pixel and connected between one terminal of the TFT in a corresponding pixel and the sub-capacitor line, and a driving circuit having at least four voltages, selecting one of the voltages and supplying the selected voltage to the sub-capacitor line to drive the liquid crystal display in a state in which the liquid crystal capacitor is capacitively coupled to the sub-capacitor.Type: ApplicationFiled: July 18, 2013Publication date: November 14, 2013Applicant: Samsung Display Co., Ltd.Inventors: RYOICHI YOKOYAMA, MICHIRU SENDA
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Patent number: 8558854Abstract: An image recognition method includes: a first step of acquiring n-th received light data at light receiving elements arranged in a matrix form on a light receiving surface; a second step of acquiring (n+1)-th received light data at the light receiving elements; a third step of calculating differential data resulting from subtraction of the n-th received light data acquired from the (n+1)-th received light data acquired; and a fourth step of carrying out image recognition based on the differential data.Type: GrantFiled: August 4, 2009Date of Patent: October 15, 2013Assignee: Japan Display West, Inc.Inventors: Kazunori Yamaguchi, Michiru Senda, Mitsuru Tateuchi, Tsutomu Harada, Ryoichi Tsuzaki
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Publication number: 20130256544Abstract: An image pickup device includes: an image pickup section including a plurality of pixels; and a drive section reading a signal charge stored in each of the pixels. Each of the pixels includes: a circuit layer including a field-effect transistor, a signal line, and a holding capacitive element; a first electrode provided on the circuit layer and arranged for each of the pixels; a semiconductor layer provided on the first electrode across the pixels, and generating the signal charge based on incident radiation; a second electrode provided on the semiconductor layer; and a third electrode disposed in a region that is between the circuit layer and the semiconductor layer and that is not in opposition to the first electrode, and controlled in voltage by the drive section.Type: ApplicationFiled: February 26, 2013Publication date: October 3, 2013Applicant: Sony CorporationInventors: Michiru Senda, Tsutomu Tanaka
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Patent number: 8542169Abstract: A DC/DC converter of a liquid crystal display includes a charge pump having a thin film transistor, a capacitor and a diode. The thin film transistor is formed on an insulating substrate. A first main electrode of the thin film transistor is connected to an output terminal and a control electrode of the thin film transistor receives a control signal. The thin film transistor includes a non-monocrystal semiconductor. The capacitor has a first electrode connected to a second main electrode of the thin film transistor and a second electrode receiving a variable voltage. The diode is electrically connected between the second main electrode of the thin film transistor, the first electrode of the capacitor, and a power terminal in series. The diode includes a mono-crystal semiconductor.Type: GrantFiled: October 30, 2007Date of Patent: September 24, 2013Assignee: Samsung Display Co., Ltd.Inventor: Michiru Senda
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Publication number: 20130234219Abstract: Disclosed herein is a transistor including: a semiconductor layer; a first gate insulation film and a first interlayer insulation film which are provided on a specific surface side of the semiconductor layer; a first gate electrode provided at a location between the first gate insulation film and the first interlayer insulation film; an insulation film provided on the other surface side of the semiconductor layer; source and drain electrodes provided by being electrically connected to the semiconductor layer; and a shield electrode layer provided in such a way that at least portions of the shield electrode layer face edges of the first gate electrode, wherein at least one of the first gate insulation film, the first interlayer insulation film and the insulation film include a silicon-oxide film.Type: ApplicationFiled: May 3, 2013Publication date: September 12, 2013Applicant: Sony CorporationInventors: Yasuhiro Yamada, Ryoichi Ito, Tsutomu Tanaka, Makoto Takatoku, Michiru Senda