Patents by Inventor Hou Gang Li

Hou Gang Li 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: 10187085
    Abstract: The present discloses provides a decoding method, decoding apparatus and decoder for correcting burst errors. In particular, the decoding method for correcting burst errors comprises: computing an initial syndrome of a received data frame, wherein the data frame is encoded according to cyclic codes for correcting burst errors; determining error correctability of burst error contained in the data frame based on the computed initial syndrome; and processing the burst error in the data frame and outputting the processed data frame based on the determined error correctability. With the decoding method, decoding apparatus, and decoder of the present invention, error correctability of burst errors contained in a data frame can be determined before the data is send out, while having smaller decoding latency through determining the error correctability and error pattern of the burst errors contained in the data frame using initial syndrome of the data frame.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: January 22, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Cheng Wei Song, Hao Yang, Fan Zhou, Hou Gang Li, Yufei Li
  • Publication number: 20170134051
    Abstract: The present discloses provides a decoding method, decoding apparatus and decoder for correcting burst errors. In particular, the decoding method for correcting burst errors comprises: computing an initial syndrome of a received data frame, wherein the data frame is encoded according to cyclic codes for correcting burst errors; determining error correctability of burst error contained in the data frame based on the computed initial syndrome; and processing the burst error in the data frame and outputting the processed data frame based on the determined error correctability. With the decoding method, decoding apparatus, and decoder of the present invention, error correctability of burst errors contained in a data frame can be determined before the data is send out, while having smaller decoding latency through determining the error correctability and error pattern of the burst errors contained in the data frame using initial syndrome of the data frame.
    Type: Application
    Filed: January 23, 2017
    Publication date: May 11, 2017
    Inventors: CHENG WEI SONG, HAO YANG, FAN ZHOU, HOU GANG LI, YUFEI LI
  • Patent number: 9608669
    Abstract: The present discloses provides a decoding method, decoding apparatus and decoder for correcting burst errors. In particular, the decoding method for correcting burst errors comprises: computing an initial syndrome of a received data frame, wherein the data frame is encoded according to cyclic codes for correcting burst errors; determining error correctability of burst error contained in the data frame based on the computed initial syndrome; and processing the burst error in the data frame and outputting the processed data frame based on the determined error correctability. With the decoding method, decoding apparatus, and decoder of the present invention, error correctability of burst errors contained in a data frame can be determined before the data is send out, while having smaller decoding latency through determining the error correctability and error pattern of the burst errors contained in the data frame using initial syndrome of the data frame.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 28, 2017
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Cheng Wei Song, Hao Yang, Fan Zhou, Hou Gang Li, Yufei Li
  • Publication number: 20160241259
    Abstract: The present discloses provides a decoding method, decoding apparatus and decoder for correcting burst errors. In particular, the decoding method for correcting burst errors comprises: computing an initial syndrome of a received data frame, wherein the data frame is encoded according to cyclic codes for correcting burst errors; determining error correctability of burst error contained in the data frame based on the computed initial syndrome; and processing the burst error in the data frame and outputting the processed data frame based on the determined error correctability. With the decoding method, decoding apparatus, and decoder of the present invention, error correctability of burst errors contained in a data frame can be determined before the data is send out, while having smaller decoding latency through determining the error correctability and error pattern of the burst errors contained in the data frame using initial syndrome of the data frame.
    Type: Application
    Filed: February 28, 2014
    Publication date: August 18, 2016
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: CHENG WEI SONG, HAO YANG, FAN ZHOU, HOU GANG LI, YUFEI LI
  • Publication number: 20140245104
    Abstract: The present discloses provides a decoding method, decoding apparatus and decoder for correcting burst errors. In particular, the decoding method for correcting burst errors comprises: computing an initial syndrome of a received data frame, wherein the data frame is encoded according to cyclic codes for correcting burst errors; determining error correctability of burst error contained in the data frame based on the computed initial syndrome; and processing the burst error in the data frame and outputting the processed data frame based on the determined error correctability. With the decoding method, decoding apparatus, and decoder of the present invention, error correctability of burst errors contained in a data frame can be determined before the data is send out, while having smaller decoding latency through determining the error correctability and error pattern of the burst errors contained in the data frame using initial syndrome of the data frame.
    Type: Application
    Filed: February 28, 2014
    Publication date: August 28, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: CHENG WEI SONG, HAO YANG, FAN ZHOU, HOU GANG LI, YUFEI LI
  • Patent number: 8606991
    Abstract: A method and system for refreshing DRAM having a plurality of banks, each of the banks including a plurality of rows includes dividing all banks in DRAM into a plurality of groups of banks, each of the groups having n banks, wherein n is an integer greater than or equal to 1. A threshold of available retention time for each group of banks is determined. Each row of banks in each group of banks is refreshed. Refreshing one row of a bank in one group of banks includes determining whether a refresh operation for the row of the bank conflicts with an access operation for the bank where the row of the bank is located. If there is a conflict, then it is determined whether to perform the refresh operation or the access operation for the current row of the bank. If it is determined to perform the access operation, the access operation is continued. If it is determined to perform the recess operation, the current row of the bank is refreshed. DRAM access performance is improved.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: December 10, 2013
    Assignee: International Business Machines Corporation
    Inventors: Xu Guang Sun, Hong Wei Wang, Hou Gang Li, Kai Zhang
  • Publication number: 20110131371
    Abstract: A method and system for refreshing DRAM having a plurality of banks, each of the banks including a plurality of rows includes dividing all banks in DRAM into a plurality of groups of banks, each of the groups having n banks, wherein n is an integer greater than or equal to 1. A threshold of available retention time for each group of banks is determined. Each row of banks in each group of banks is refreshed. Refreshing one row of a bank in one group of banks includes determining whether a refresh operation for the row of the bank conflicts with an access operation for the bank where the row of the bank is located. If there is a conflict, then it is determined whether to perform the refresh operation or the access operation for the current row of the bank. If it is determined to perform the access operation, the access operation is continued. If it is determined to perform the recess operation, the current row of the bank is refreshed. DRAM access performance is improved.
    Type: Application
    Filed: November 29, 2010
    Publication date: June 2, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Xu Guang Sun, Hong Wei Wang, Hou Gang Li, Kai Zhang