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).
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Patent number: 10187085Abstract: 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: GrantFiled: January 23, 2017Date of Patent: January 22, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Cheng Wei Song, Hao Yang, Fan Zhou, Hou Gang Li, Yufei Li
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Publication number: 20170134051Abstract: 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: ApplicationFiled: January 23, 2017Publication date: May 11, 2017Inventors: CHENG WEI SONG, HAO YANG, FAN ZHOU, HOU GANG LI, YUFEI LI
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Patent number: 9608669Abstract: 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: GrantFiled: February 28, 2014Date of Patent: March 28, 2017Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Cheng Wei Song, Hao Yang, Fan Zhou, Hou Gang Li, Yufei Li
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Publication number: 20160241259Abstract: 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: ApplicationFiled: February 28, 2014Publication date: August 18, 2016Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: CHENG WEI SONG, HAO YANG, FAN ZHOU, HOU GANG LI, YUFEI LI
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Publication number: 20140245104Abstract: 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: ApplicationFiled: February 28, 2014Publication date: August 28, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: CHENG WEI SONG, HAO YANG, FAN ZHOU, HOU GANG LI, YUFEI LI
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Patent number: 8606991Abstract: 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: GrantFiled: November 29, 2010Date of Patent: December 10, 2013Assignee: International Business Machines CorporationInventors: Xu Guang Sun, Hong Wei Wang, Hou Gang Li, Kai Zhang
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Publication number: 20110131371Abstract: 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: ApplicationFiled: November 29, 2010Publication date: June 2, 2011Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Xu Guang Sun, Hong Wei Wang, Hou Gang Li, Kai Zhang