Patents by Inventor Ryu NAGASAWA

Ryu NAGASAWA 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: 10539986
    Abstract: An operating condition is controlled from viewpoints both processing capacity and power consumption. A CPU 11 includes, for example, a plurality of CPU cores 11a to 11d, and configured to such that an operating condition can be varied. A performance table 26 is a table representing a relationship between the operating condition of the CPU 11 and the processing capacity of the CPU 11. A power consumption table 27 is a table representing a relationship between the operating condition of the CPU 11 and power consumption. An operation control unit 22 controls the operating condition of the CPU 11 referring to the performance table 26 and the power consumption table 27.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: January 21, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Takahiko Gomi, Ryu Nagasawa, Gaku Inami
  • Publication number: 20190391846
    Abstract: The semiconductor integrated circuit includes a plurality of CPUs (big CPU and LITTLE CPU). Each of CPUs has a different performance respectively. The semiconductor integrated circuit determines an effective CPU allocated to a task realized by at least one of the plurality of functional blocks according to the device table defining a relationship between the plurality of functional blocks and any one of the plurality of CPUs.
    Type: Application
    Filed: May 14, 2019
    Publication date: December 26, 2019
    Inventors: Keita KOBAYASHI, Takahiko GOMI, Ryu NAGASAWA
  • Publication number: 20190195924
    Abstract: A semiconductor device is provided which can suppress heating while assigning performances to a plurality of modules whose heat generations are controlled while considering usage conditions of the plurality of modules. The semiconductor device includes a load detection unit that detects operation rates of the plurality of modules, a weighting calculation unit that calculates coefficients of the plurality of modules based on the operation rates of the plurality of modules, and a heat generation control unit that controls power consumptions of the plurality of modules based on the coefficients of the plurality of modules.
    Type: Application
    Filed: November 6, 2018
    Publication date: June 27, 2019
    Inventors: Takahiko GOMI, Ryu NAGASAWA
  • Publication number: 20190004593
    Abstract: The semiconductor device includes a plurality of cores, a sensor for detecting a temperature, and a control circuit configured to obtain each power consumption of the respective cores so as to select the core as a control object in accordance with the obtained power consumption.
    Type: Application
    Filed: June 11, 2018
    Publication date: January 3, 2019
    Inventors: Takahiko GOMI, Ryu Nagasawa
  • Publication number: 20180181170
    Abstract: An operating condition is controlled from viewpoints both processing capacity and power consumption. A CPU 11 includes, for example, a plurality of CPU cores 11a to 11d, and configured to such that an operating condition can be varied. A performance table 26 is a table representing a relationship between the operating condition of the CPU 11 and the processing capacity of the CPU 11. A power consumption table 27 is a table representing a relationship between the operating condition of the CPU 11 and power consumption. An operation control unit 22 controls the operating condition of the CPU 11 referring to the performance table 26 and the power consumption table 27.
    Type: Application
    Filed: November 30, 2017
    Publication date: June 28, 2018
    Applicant: Renesas Electronics Corporation
    Inventors: Takahiko GOMI, Ryu NAGASAWA, Gaku INAMI