Patents by Inventor Takenori Sato

Takenori Sato 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: 20170300971
    Abstract: PROBLEM Provided are an information processing system, an information processing apparatus, and an information processing method those for generating statistical data of vehicles traveling at a predetermined location. MEANS FOR SOLVING THE PROBLEM An information processing system 100 according to one embodiment of the disclosure herein includes an imaging unit 131 for capturing an image of a vehicle which is traveling, and a controller 121 for identifying a model of the vehicle based on the image of the vehicle captured by the imaging unit 131 and generating statistical data based on the model thus identified.
    Type: Application
    Filed: August 23, 2016
    Publication date: October 19, 2017
    Inventors: Hiroshi OHTA, Takenori SATO
  • Patent number: 9478262
    Abstract: Disclosed here is an apparatus that comprises a data terminal, a data output circuit including a plurality of output buffers coupled in common to the data terminal, and an impedance control circuit coupled to the data output circuit, wherein the impedance control circuit is configured to generate first impedance code and second impedance code different from the first impedance code and to apply a selected one of the first impedance code and the second impedance code to at least one of the output buffers.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: October 25, 2016
    Assignee: Micron Technology, Inc.
    Inventors: Wataru Tsukada, Takenori Sato
  • Publication number: 20160049180
    Abstract: Disclosed here is an apparatus that comprises a data terminal, a data output circuit including a plurality of output buffers coupled in common to the data terminal, and an impedance control circuit coupled to the data output circuit, wherein the impedance control circuit is configured to generate first impedance code and second impedance code different from the first impedance code and to apply a selected one of the first impedance code and the second impedance code to at least one of the output buffers.
    Type: Application
    Filed: May 29, 2015
    Publication date: February 18, 2016
    Inventors: WATARU TSUKADA, TAKENORI SATO
  • Patent number: 9130556
    Abstract: Disclosed herein is a device that includes a first buffer circuit coupled between a first power supply line and a data terminal and a second buffer circuit coupled between a second power supply line and the data terminal. First and second internal data signals complementary to each other are supplied to a level shifter, thereby third and fourth internal data signals complementary to each other are generated by changing amplitude values of the first and second internal data signals. The first and the second buffer circuits are controlled based on the third and fourth internal data signals such that one of the first and second buffer circuits turns on and the other of the first and second buffer circuits turns off.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 8, 2015
    Assignee: PS4 Luxco S.a.r.l.
    Inventors: Chiaki Dono, Takenori Sato, Shinya Miyazaki
  • Publication number: 20150071013
    Abstract: A semiconductor device includes: two level shift circuits having substantially the same circuit configuration; an input circuit that supplies complementary input signals to the level shift circuits, respectively; and an output circuit that converts complementary output signals output from the level shift circuits into in-phase signals and then short-circuits the in-phase signals. According to the present invention, the two level shift circuits having substantially the same circuit configuration are used, and the complementary output signals output from the level shift circuits are converted into in-phase signals before short-circuited. This avoids almost any occurrence of a through current due to a difference in operating speed between the level shift circuits.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 12, 2015
    Applicant: PS4 LUXCO S.A.R.L.
    Inventors: Takenori Sato, Yoji Idei, Hiromasa Noda
  • Patent number: 8923077
    Abstract: The semiconductor device including an output terminal; and an output unit coupled to the output terminal. The output unit includes an output buffer coupled to the output terminal and operating on a first power supply voltage, a first control circuit operating on a second power supply voltage, receiving an impedance adjustment signal and a data signal and making the output buffer drive the output terminal to a first logic level designated by the data signal with impedance designated by the impedance adjustment signal, and a level shifter coupled between the output buffer and the first control circuit. The second power supply voltage is smaller in level than the first power supply voltage. The level shifter includes a first circuit portion operating on the second power supply voltage and a second circuit portion operating on the first power supply voltage.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 30, 2014
    Assignee: PS4 Luxco S.a.r.l.
    Inventor: Takenori Sato
  • Patent number: 8901781
    Abstract: A semiconductor device is disclosed. A first power supply wiring for connecting between a first output circuit consisting of a predetermined number of output circuits and a first power supply pad which corresponds to the first output circuit, is connected via a resistor with a second power supply wiring for connecting between a second output circuit consisting of a predetermined number of output circuit and a second power supply pad which corresponds to the second output circuit. Thus, power supply noise that is to be propagated to certain output circuits via in-chip output power supply wirings can be reduced.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: December 2, 2014
    Assignee: PS4 Luxco S.A.R.L.
    Inventors: Takenori Sato, Hiroki Fujisawa
  • Patent number: 8891318
    Abstract: A semiconductor device includes: two level shift circuits having substantially the same circuit configuration; an input circuit that supplies complementary input signals to the level shift circuits, respectively; and an output circuit that converts complementary output signals output from the level shift circuits into in-phase signals and then short-circuits the in-phase signals. According to the present invention, the two level shift circuits having substantially the same circuit configuration are used, and the complementary output signals output from the level shift circuits are converted into in-phase signals before short-circuited. This avoids almost any occurrence of a through current due to a difference in operating speed between the level shift circuits.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: November 18, 2014
    Assignee: PS4 Luxco S.a.r.l.
    Inventors: Takenori Sato, Yoji Idei, Hiromasa Noda
  • Patent number: 8856577
    Abstract: A semiconductor device includes: a DLL circuit that generates an internal clock signal based on an external clock signal; a clock dividing circuit that generates two complementary internal clock signals having different phases based on the internal clock signal; and a multiplexer that outputs two internal data signals in synchronization with the two clock signals based on internal data signals, respectively. An internal power supply voltage supplied to the clock dividing circuit and an internal power supply voltage supplied to the multiplexer are generated by respective different power supply circuits and are separated from each other in the semiconductor device. This prevents interaction among noises.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: October 7, 2014
    Assignee: PS4 Luxco S.a.r.l.
    Inventor: Takenori Sato
  • Patent number: 8653874
    Abstract: A splitter circuit in a semiconductor device includes a first inverter that receives an input signal and outputs an inverted signal, a second inverter that receives the inverted signal and outputs a non-inverted signal (a first output signal), a third inverter that receives the input signal and outputs an inverted signal (a second output signal) and an auxiliary inverter that shares an output signal line with the third inverter. The third inverter and the auxiliary inverter use an inverted signal of the input signal as power supplies.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: February 18, 2014
    Assignee: Elpida Memory, Inc.
    Inventors: Takenori Sato, Shinya Miyazaki
  • Publication number: 20140003116
    Abstract: A semiconductor device includes first and second global bit lines; first, second, third and fourth sense node; a first sense switch coupled between the first sense node and the first global bit line; a second sense switch coupled between the second sense node and the second global bit line; a third sense switch coupled between the third sense node and the first global bit line; a fourth sense switch coupled between the fourth sense node and the second global bit line; a first sense amplifier including a first terminal coupled to the first sense node and a second terminal coupled to the second sense node; a second sense amplifier including a third terminal coupled to the third sense node and a fourth terminal coupled to the fourth sense node. The first, second, third and fourth terminals respectively have first, second, third and fourth parasitic capacitances substantially equal in capacitance value.
    Type: Application
    Filed: September 5, 2013
    Publication date: January 2, 2014
    Applicant: Elpida Memory, Inc.
    Inventors: Takenori SATO, Kazuhiko KAJIGAYA, Yoshimitsu YANAGAWA, Tomonori SEKIGUCHI, Akira KOTABE, Satoru AKIYAMA
  • Patent number: 8605476
    Abstract: A sense operation with respect to simultaneously-accessed two memory cells is performed by time division by using two sense amplifiers, and thereafter restore operations are performed simultaneously. With this arrangement, it is not necessary to provide switches in the middle of global bit lines, and no problem occurs when performing the restore operation by time division. Further, because a parasitic CR model of a first sense amplifier and that of a second sense amplifier become mutually the same, high sensitivity can be maintained.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: December 10, 2013
    Assignee: Elpida Memory, Inc.
    Inventors: Takenori Sato, Kazuhiko Kajigaya, Yoshimitsu Yanagawa, Tomonori Sekiguchi, Akira Kotabe, Satoru Akiyama
  • Publication number: 20130082758
    Abstract: Disclosed herein is a device that includes a first buffer circuit coupled between a first power supply line and a data terminal and a second buffer circuit coupled between a second power supply line and the data terminal. First and second internal data signals complementary to each other are supplied to a level shifter, thereby third and fourth internal data signals complementary to each other are generated by changing amplitude values of the first and second internal data signals. The first and the second buffer circuits are controlled based on the third and fourth internal data signals such that one of the first and second buffer circuits turns on and the other of the first and second buffer circuits turns off.
    Type: Application
    Filed: September 14, 2012
    Publication date: April 4, 2013
    Applicant: ELPIDA MEMORY, INC.
    Inventors: Chiaki DONO, Takenori SATO, Shinya MIYAZAKI
  • Publication number: 20130082743
    Abstract: A splitter circuit in a semiconductor device includes a first inverter that receives an input signal and outputs an inverted signal, a second inverter that receives the inverted signal and outputs a non-inverted signal (a first output signal), a third inverter that receives the input signal and outputs an inverted signal (a second output signal) and an auxiliary inverter that shares an output signal line with the third inverter. The third inverter and the auxiliary inverter use an inverted signal of the input signal as power supplies.
    Type: Application
    Filed: September 11, 2012
    Publication date: April 4, 2013
    Applicant: Elpida Memory, Inc.
    Inventors: Takenori SATO, Shinya Miyazaki
  • Publication number: 20130070537
    Abstract: The semiconductor device including an output terminal; and an output unit coupled to the output terminal. The output unit includes an output buffer coupled to the output terminal and operating on a first power supply voltage, a first control circuit operating on a second power supply voltage, receiving an impedance adjustment signal and a data signal and making the output buffer drive the output terminal to a first logic level designated by the data signal with impedance designated by the impedance adjustment signal, and a level shifter coupled between the output buffer and the first control circuit. The second power supply voltage is smaller in level than the first power supply voltage. The level shifter includes a first circuit portion operating on the second power supply voltage and a second circuit portion operating on the first power supply voltage.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 21, 2013
    Applicant: Elpida Memory, Inc.
    Inventor: Takenori Sato
  • Patent number: 8384433
    Abstract: To include a first inverter that receives an input signal to output an inverted signal, a second inverter that receives the inverted signal to output a first internal signal, and a third inverter that receives the input signal and outputs a second internal signal by using the inverted signal as a power supply. According to the present invention, because a signal on one signal path is used as a power supply of an inverter included in the other signal path, phases of a pair of output signals based on the input signal can be exactly matched without adding a capacitor or a resistor for adjustment.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: February 26, 2013
    Assignee: Elpida Memory, Inc.
    Inventors: Takenori Sato, Hideaki Kato
  • Patent number: 8363503
    Abstract: To include a power-down control circuit that suspends an operation of a predetermined internal circuit in response to a power-down command, and an external terminal to which a selection signal is input from outside simultaneously with issuance of a power-down command. The power-down control circuit suspends an operation of a DLL circuit when the selection signal is at a low level, and continues an operation of the DLL circuit when the selection signal is at a high level. According to the present invention, by using the selection signal input simultaneously with a power-down command, mode selection can be made on-the-fly.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: January 29, 2013
    Assignee: Elpida Memory, Inc.
    Inventors: Takenori Sato, Hiroki Fujisawa
  • Publication number: 20120146409
    Abstract: A semiconductor device includes: a plurality of power supply pads to which external voltages are supplied; a plurality of data output pads; power supply main lines that are connected to the respective corresponding power supply pads in common; a plurality of power supply branch lines that are branched from the power supply main lines, respectively; a plurality of output buffers that operate with power supply voltages supplied from the respective corresponding power supply branch lines, and drive respective corresponding data output pads; and low-pass filter circuits that are provided on the respective power supply branch lines.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 14, 2012
    Applicant: ELPIDA MEMORY, INC.
    Inventor: Takenori SATO
  • Publication number: 20120133402
    Abstract: A semiconductor device includes: a DLL circuit that generates an internal clock signal based on an external clock signal; a clock dividing circuit that generates two complementary internal clock signals having different phases based on the internal clock signal; and a multiplexer that outputs two internal data signals in synchronization with the two clock signals based on internal data signals, respectively. An internal power supply voltage supplied to the clock dividing circuit and an internal power supply voltage supplied to the multiplexer are generated by respective different power supply circuits and are separated from each other in the semiconductor device. This prevents interaction among noises.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 31, 2012
    Applicant: Elpida Memory, Inc.
    Inventor: Takenori Sato
  • Publication number: 20120134439
    Abstract: A semiconductor device includes: two level shift circuits having substantially the same circuit configuration; an input circuit that supplies complementary input signals to the level shift circuits, respectively; and an output circuit that converts complementary output signals output from the level shift circuits into in-phase signals and then short-circuits the in-phase signals. According to the present invention, the two level shift circuits having substantially the same circuit configuration are used, and the complementary output signals output from the level shift circuits are converted into in-phase signals before short-circuited. This avoids almost any occurrence of a through current due to a difference in operating speed between the level shift circuits.
    Type: Application
    Filed: November 1, 2011
    Publication date: May 31, 2012
    Applicant: Elpida Memory, lnc.
    Inventors: Takenori Sato, Yoji Idei, Hiromasa Noda