Patents by Inventor Kazutaka Miyano

Kazutaka Miyano 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: 11676650
    Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: June 13, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Kazutaka Miyano, Yasuo Satoh, Kenji Mae
  • Publication number: 20230076261
    Abstract: Methods, apparatuses, and systems related to coordinating a set of timing-critical operations across parallel processing pipelines are described. The coordination may include selectively using (1) circuitry associated with a corresponding pipeline to generate enable signals associated with the timing critical operations when a separation between the operations corresponds to a number of pipelines or (2) circuitry associated with a non-corresponding or another pipeline when the separation is not a factor of the number of pipelines.
    Type: Application
    Filed: September 3, 2021
    Publication date: March 9, 2023
    Inventors: Navya Sri Sreeram, Kallol Mazumder, Ryo Fujimaki, Kazutaka Miyano, Yutaka Uemura
  • Patent number: 11594265
    Abstract: Methods, apparatuses, and systems related to coordinating a set of timing-critical operations across parallel processing pipelines are described. The coordination may include selectively using (1) circuitry associated with a corresponding pipeline to generate enable signals associated with the timing critical operations when a separation between the operations corresponds to a number of pipelines or (2) circuitry associated with a non-corresponding or another pipeline when the separation is not a factor of the number of pipelines.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: February 28, 2023
    Assignee: Micron Technology, Inc.
    Inventors: Navya Sri Sreeram, Kallol Mazumder, Ryo Fujimaki, Kazutaka Miyano, Yutaka Uemura
  • Patent number: 11348633
    Abstract: An apparatus may include a delay line that receives a command signal and provides a delayed command signal. The apparatus may include an edge starter that provides a clock enable signal responsive, at least in part, to a change in level of the command signal. A gate circuit of the apparatus may provide a shift clock signal responsive, at least in part, to the clock enable signal. The apparatus may also include a shifter that captures and shifts the delay command signal responsive, at least in part, to the shift clock signal.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: May 31, 2022
    Assignee: Micron Technology, Inc.
    Inventor: Kazutaka Miyano
  • Publication number: 20210358541
    Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.
    Type: Application
    Filed: June 29, 2021
    Publication date: November 18, 2021
    Applicant: Micron Technology, Inc.
    Inventors: Kazutaka Miyano, Yasuo Satoh, Kenji Mae
  • Patent number: 11087806
    Abstract: Apparatuses and methods related to adjusting a delay of a command signal path are disclosed. An example apparatus includes: a timing circuit that includes a divider circuit that receives a first clock signal having a first frequency and provides a complementary pair of second and third clock signals having a second frequency that is half the first frequency; a first delay circuit that receives the second clock signal and provides a delayed second clock signal responsive to the second clock signal; and a second delay circuit that receives the third clock signal and provides a delayed third clock signal responsive to the third clock signal. The timing circuit receives a first signal, latches the first signal responsive to the delayed second clock signal to provide a second signal and latches the second signal responsive to either the second clock signal or the third clock signal responsive to latency information.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: August 10, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Kazutaka Miyano, Atsuko Momma
  • Patent number: 11049543
    Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 29, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Kazutaka Miyano, Yasuo Satoh, Kenji Mae
  • Publication number: 20210125658
    Abstract: An apparatus may include a delay line that receives a command signal and provides a delayed command signal. The apparatus may include an edge starter that provides a clock enable signal responsive, at least in part, to a change in level of the command signal. A gate circuit of the apparatus may provide a shift clock signal responsive, at least in part, to the clock enable signal. The apparatus may also include a shifter that captures and shifts the delay command signal responsive, at least in part, to the shift clock signal.
    Type: Application
    Filed: December 31, 2020
    Publication date: April 29, 2021
    Inventor: Kazutaka Miyano
  • Publication number: 20210065782
    Abstract: A semiconductor device may include a delay locked loop (DLL) control circuit coupled to an update trigger generator and a DLL update circuit. The DLL control circuit may receive an update trigger signal and an internal refresh signal and configured to activate the DLL update circuit responsive to an update trigger in the update trigger signal and deactivate the DLL update circuit responsive to an active internal refresh signal. The DLL update circuit may perform DLL update to one or more memory cell arrays when activated and not perform DLL update to the memory cell arrays when deactivated. The DLL control circuit may reactivate the DLL update circuit once the internal refresh signal becomes inactive. In other scenarios, once the DLL update circuit is deactivated, the DLL update circuit stays deactivated until the next update trigger in the update trigger signal.
    Type: Application
    Filed: September 3, 2019
    Publication date: March 4, 2021
    Applicant: Micron Technology, Inc.
    Inventors: Kazutaka Miyano, Yasuo Satoh, Kenji Mae
  • Patent number: 10931270
    Abstract: Apparatuses and methods for data transmission offset values in burst transmissions. An example apparatus may include offset logic configured to provide offset values associated with a receiver circuit of a memory device coupled to a signal line. The offset values are based on individual transition threshold voltages biases of sample circuits of the receiver circuit. The example apparatus may further include an input/output (I/O) circuit comprising a driver circuit. The driver circuit configured to receive a logic signal and the offset values and to provide an output signal to the signal line based on the logic signal and to adjust voltages of the output signal based on the offset values.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: February 23, 2021
    Assignee: Micron Technology, Inc.
    Inventors: Yasuo Satoh, Kazutaka Miyano
  • Patent number: 10924097
    Abstract: Examples described herein include command latency shifters which may include a plurality of registers arranged in a folded topology.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: February 16, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Kazutaka Miyano
  • Patent number: 10892002
    Abstract: An apparatus may include a delay line that receives a command signal and provides a delayed command signal. The apparatus may include an edge starter that provides a clock enable signal responsive, at least in part, to a change in level of the command signal. A gate circuit of the apparatus may provide a shift clock signal responsive, at least in part, to the clock enable signal. The apparatus may also include a shifter that captures and shifts the delay command signal responsive, at least in part, to the shift clock signal.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: January 12, 2021
    Assignee: Micron Technology, Inc.
    Inventor: Kazutaka Miyano
  • Patent number: 10755758
    Abstract: Apparatuses for controlling latencies on input signal paths in semiconductor devices are disclosed. An example apparatus includes: a clock input buffer that provides a reference clock signal and a system clock signal based on an external clock signal; a command decoder that latches command signals with the system clock signal and further provides a signal based on the command signals; and a command delay adjustment circuit including: a clock synchronizing circuit that receives the signal, latches the signal with the system clock signal and provides a clock-synchronized read signal responsive to a shift cycle parameter.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 25, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Shuichi Ishibashi, Kazutaka Miyano, Hiroki Fujisawa
  • Publication number: 20200228107
    Abstract: Examples described herein include command latency shifters which may include a plurality of registers arranged in a folded topology.
    Type: Application
    Filed: March 30, 2020
    Publication date: July 16, 2020
    Applicant: MICRON TECHNOLOGY, INC.
    Inventor: KAZUTAKA MIYANO
  • Publication number: 20200136600
    Abstract: Apparatuses and methods for data transmission offset values in burst transmissions. An example apparatus may include offset logic configured to provide offset values associated with a receiver circuit of a memory device coupled to a signal line. The offset values are based on individual transition threshold voltages biases of sample circuits of the receiver circuit. The example apparatus may further include an input/output (I/O) circuit comprising a driver circuit. The driver circuit configured to receive a logic signal and the offset values and to provide an output signal to the signal line based on the logic signal and to adjust voltages of the output signal based on the offset values.
    Type: Application
    Filed: December 23, 2019
    Publication date: April 30, 2020
    Applicant: Micron Technology, Inc.
    Inventors: Yasuo Satoh, Kazutaka Miyano
  • Publication number: 20200135257
    Abstract: An apparatus may include a delay line that receives a command signal and provides a delayed command signal. The apparatus may include an edge starter that provides a clock enable signal responsive, at least in part, to a change in level of the command signal. A gate circuit of the apparatus may provide a shift clock signal responsive, at least in part, to the clock enable signal. The apparatus may also include a shifter that captures and shifts the delay command signal responsive, at least in part, to the shift clock signal.
    Type: Application
    Filed: October 24, 2018
    Publication date: April 30, 2020
    Inventor: Kazutaka Miyano
  • Patent number: 10636463
    Abstract: An apparatus, such as a memory device, that includes circuits and techniques to synchronize various internal signals with an internal clock signal to ensure proper functionality of the memory device through various modes of operation. A clock enable control circuit is provided to control the input of a delay locked loop circuit to provide a locked condition based on a particular type of command input and the state of various control signals to allow for multiple locking conditions and adjustments based on a length of a clock cycle of the internal clock signal.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: April 28, 2020
    Assignee: Micron Technology, Inc.
    Inventors: Yoshiya Komatsu, Kazutaka Miyano, Atsuko Momma
  • Patent number: 10608620
    Abstract: Examples described herein include command latency shifters which may include a plurality of registers arranged in a folded topology.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: March 31, 2020
    Assignee: Micron Technology, Inc.
    Inventor: Kazutaka Miyano
  • Patent number: 10516391
    Abstract: Apparatuses and methods for data transmission offset values in burst transmissions. An example apparatus may include offset logic configured to provide offset values associated with a receiver circuit of a memory device coupled to a signal line. The offset values are based on individual transition threshold voltages biases of sample circuits of the receiver circuit. The example apparatus may further include an input/output (I/O) circuit comprising a driver circuit. The driver circuit configured to receive a logic signal and the offset values and to provide an output signal to the signal line based on the logic signal and to adjust voltages of the output signal based on the offset values.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: December 24, 2019
    Assignee: Micron Technology, Inc.
    Inventors: Yasuo Satoh, Kazutaka Miyano
  • Publication number: 20190386648
    Abstract: Examples described herein include command latency shifters which may include a plurality of registers arranged in a folded topology.
    Type: Application
    Filed: June 19, 2018
    Publication date: December 19, 2019
    Applicant: Micron Technology, Inc.
    Inventor: Kazutaka Miyano