Patents by Inventor Jin-Kyoung Du

Jin-Kyoung Du 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).

  • Method and apparatus for controlling power in low-power multi-core system
    Patent number: 9256508
    Abstract: A method and apparatus for controlling power in a low-power multi-core system, including receiving task information from an Operation System (OS) kernel upon start and end of a task, estimating a future CPU usage using a current CPU usage in the task information, monitoring memory-related information in the task information, comparing a change in the current CPU usage with the monitored memory-related information, establishing a policy for power control based on the estimated CPU usage and the monitored memory-related information, and controlling on/off of multiple cores according to the established policy. By doing so, it is possible to solve the problems caused by performing DPM using only the CPU usage.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: February 9, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Il-Hyun Cho, Sung-Joon Jang, Hyun-Moo Kim, Nam-Su Ha, Jin-Hyo Kim, Tae-Il Kim, Ji-Hwan Park, Hye-Sun Kim, Jin-Kyoung Du
  • Apparatus and method for power control of a central processing unit in a multi-core system
    Patent number: 8661276
    Abstract: A power control method of a Central Processing Unit (CPU) in a multi-core system. The power control method includes acquiring current usage information of the CPU and system information, estimating a CPU usage of a next time interval based on the acquired current usage information, calibrating the estimated CPU usage of the next time interval based on the acquired system information, and determining a power control mode based on at least one of the acquired system information and the calibrated CPU usage of the next time interval.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: February 25, 2014
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Ji-Hwan Park, Hyun-Moo Kim, Nam-Su Ha, Jung-Hwan Choi, Jin-Hyo Kim, Tae-Il Kim, Il-Hyun Cho, Sung-Joon Jang, Hye-Sun Kim, Jin-Kyoung Du
  • METHOD AND APPARATUS FOR CONTROLLING POWER IN LOW-POWER MULTI-CORE SYSTEM
    Publication number: 20120216054
    Abstract: A method and apparatus for controlling power in a low-power multi-core system, including receiving task information from an Operation System (OS) kernel upon start and end of a task, estimating a future CPU usage using a current CPU usage in the task information, monitoring memory-related information in the task information, comparing a change in the current CPU usage with the monitored memory-related information, establishing a policy for power control based on the estimated CPU usage and the monitored memory-related information, and controlling on/off of multiple cores according to the established policy. By doing so, it is possible to solve the problems caused by performing DPM using only the CPU usage.
    Type: Application
    Filed: November 4, 2010
    Publication date: August 23, 2012
    Applicant: SAMSUNG ELECTRONICS CO. LTD.
    Inventors: Il-Hyun Cho, Sung-Joon Jang, Hyun-Moo Kim, Nam-Su Ha, Jin-Hyo Kim, Tae-Il Kim, Ji-Hwan Park, Hye-Sun Kim, Jin-Kyoung Du
  • APPARATUS AND METHOD FOR POWER CONTROL OF A CENTRAL PROCESSING UNIT IN A MULTI-CORE SYSTEM
    Publication number: 20110093724
    Abstract: A power control method of a Central Processing Unit (CPU) in a multi-core system. The power control method includes acquiring current usage information of the CPU and system information, estimating a CPU usage of a next time interval based on the acquired current usage information, calibrating the estimated CPU usage of the next time interval based on the acquired system information, and determining a power control mode based on at least one of the acquired system information and the calibrated CPU usage of the next time interval.
    Type: Application
    Filed: October 21, 2010
    Publication date: April 21, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-Hwan PARK, Hyun-Moo Kim, Nam-Su Ha, Jung-Hwan Choi, Jin-Hyo Kim, Tae-Il Kim, Il-Hyun Cho, Sung-Joon Jang, Hye-Sun Kim, Jin-Kyoung Du