Patents by Inventor Seung-youl Jeong
Seung-youl Jeong 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: 11340972Abstract: Systems and methods are disclosed for categorizing error types encountered in data access operations based on bit information from a data segment. An example apparatus includes a circuit configured to perform error recovery for one or more data segments including determining an error recovery operation of a plurality of error recovery operations to perform based on bit information of the one or more data segments. The example circuit also performs the determined error recovery operation.Type: GrantFiled: February 14, 2020Date of Patent: May 24, 2022Assignee: Seagate Technology LLCInventors: Seokhun Jeon, MinGyeong Son, Seung Youl Jeong
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Patent number: 10585732Abstract: Systems and methods are disclosed for categorizing error types encountered in data access operations based on bit information from a data segment. An example apparatus includes a circuit configured to perform error recovery for one or more data segments including determining an error recovery operation of a plurality of error recovery operations to perform based on bit information of the one or more data segments. The example circuit also performs the determined error recovery operation.Type: GrantFiled: January 11, 2017Date of Patent: March 10, 2020Assignee: Seagate Technology LLCInventors: Seokhun Jeon, MinGyeong Son, Seung Youl Jeong
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Patent number: 10445171Abstract: Technologies are described herein for or enhancing error recovery procedures in a storage device by utilizing on-the-fly error type detection. After a read error has occurred, a number of read retries are performed through an adaptive read channel in the storage device. The current channel parameters of the adaptive read channel are then compared to a number of predetermined channel parameter sets, each associated with an error type, to determine the most probable type of error that occurred. Finally, an error recovery sequence is selected to recover from the read error based on the determined error type.Type: GrantFiled: February 29, 2016Date of Patent: October 15, 2019Assignee: Seagate Technology LLCInventors: Seung Youl Jeong, Min Gyeong Son, Eun Yeong Hong, Hyunjun Lee
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Publication number: 20170249206Abstract: Technologies are described herein for or enhancing error recovery procedures in a storage device by utilizing on-the-fly error type detection. After a read error has occurred, a number of read retries are performed through an adaptive read channel in the storage device. The current channel parameters of the adaptive read channel are then compared to a number of predetermined channel parameter sets, each associated with an error type, to determine the most probable type of error that occurred. Finally, an error recovery sequence is selected to recover from the read error based on the determined error type.Type: ApplicationFiled: February 29, 2016Publication date: August 31, 2017Inventors: Seung Youl Jeong, Min Gyeong Son, Eun Yeong Hong, Hyunjun Lee
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Publication number: 20140205093Abstract: For generating a seed, such as for a random number, a plurality of data storage location identifiers, such as sectors, can be combined. A random number can be calculated using the seed. The selection of the data storage location identifiers can be time varied based on commands received from a host. The seed that is generated can have enhanced unpredictability and complexity for secure data cryptography.Type: ApplicationFiled: February 4, 2014Publication date: July 24, 2014Applicant: Seagate Technology LLCInventors: Sung-Youn Cho, Seung-Youl Jeong, Jong-Lak Park, Hak-Yeoul Sohn
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Patent number: 8650234Abstract: For generating a random number in a disk drive, a seed is generated from a respective sector number for each of at least one sector of the disk drive. The random number is calculated using the seed. The seed that is generated with enhanced unpredictability and complexity is used to generate the random number for secure data cryptography within the disk drive.Type: GrantFiled: June 21, 2004Date of Patent: February 11, 2014Assignee: Seagate Technology LLCInventors: Sung-Youn Cho, Seung-Youl Jeong, Jong-Lak Park, Hak-Yeol Sohn
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Publication number: 20120154947Abstract: The method of controlling a defect of a hard disk drive that includes analyzing a defect type by using indexes of error corrected symbols after performing error correction with respect to each of a plurality of symbols and setting a sector as unusable when the sector includes a defect that is determined to be a defect having a defect type that is a hard defect.Type: ApplicationFiled: December 14, 2011Publication date: June 21, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Joo Won CHO, Seung Youl Jeong
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Patent number: 8023379Abstract: Provided are a disk defect inspection method and apparatus. The defect inspection method includes; determining an independent recording density value for disk defect detection in relation to disk drive component factors excepting a disk of the disk drive, and performing a disk defect inspection using the independent recording density value for disk defect detection.Type: GrantFiled: April 3, 2009Date of Patent: September 20, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-youl Jeong, Se-hyun Kim, Jae-deog Cho
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Publication number: 20110188147Abstract: A method of adjusting gain of a variable gain amplifier of a read/write channel circuit includes loading a first VGA gain value that is read channel optimized, in a first register, loading a second VGA gain value that is adapted, in a second register, calculating a third VGA gain value according to a result of operation of the first VGA gain value and the second VGA gain value, and overwriting the third VGA gain value to the first register.Type: ApplicationFiled: February 2, 2011Publication date: August 4, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joo Won CHO, Seung Youl JEONG
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Patent number: 7978428Abstract: A disk drive includes a disk having a track that includes a data sector divided by a servo sector so that a first data sector portion is on a first side of the servo sector, and a second data sector portion is on a second side of the servo sector. The disk drive reads data by: positioning the head at a first offset position with respect to the track and reading data from the data sector. When a read error occurs between the first and second data sector portions, the disk drive: stores the data from the first data sector portion in memory, moves the head to a second offset position with respect to the track, reads data from the second data sector portion with the head at the second offset position, and stores the data read from the second data sector portion in the memory.Type: GrantFiled: January 23, 2009Date of Patent: July 12, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Deog Cho, Seung Youl Jeong
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Publication number: 20110113284Abstract: A read retry method performed in a hard disk drive, the read retry method may include performing a read operation; and ignoring a read error flag generated when a read error is generated, and continuing to perform the read operation.Type: ApplicationFiled: November 4, 2010Publication date: May 12, 2011Applicant: Samsung Electronics Co., LtdInventors: Jong Oh PARK, Seung Youl Jeong
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Patent number: 7827322Abstract: For protecting data during transmission between a host device and a data storage device, the host device encrypts command-related information and sends the encrypted command-related information to the data storage device. The data storage device decrypts the encrypted command-related information, interprets the decrypted command-related information to generate interpreted commands, and executes the interpreted commands.Type: GrantFiled: November 12, 2008Date of Patent: November 2, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Youl Jeong, Jong-Lak Park, Hak-Yeol Sohn, Sung-Youn Cho
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Patent number: 7620813Abstract: A method and apparatus to authenticate a data processing apparatus having a recording device, according to which recording data to and restoring data from only an authenticated recording device can be performed. The authentication method to ensure legally recording of data to and/reproducing of data from a recording device in a data processing apparatus having a host to process data and the recording device to store and reproduce data processed or to be processed by the host, includes authenticating the recording device via the host; authenticating the host via the recording device; and performing recording of data to and/or reproducing of data from the recording device upon determining that the host and the recording device have authenticated each other.Type: GrantFiled: June 25, 2004Date of Patent: November 17, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-lak Park, Seung-youl Jeong, Hak-yeol Sohn, Sung-yon Cho
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Publication number: 20090252012Abstract: Provided are a disk defect inspection method and apparatus. The defect inspection method includes; determining an independent recording density value for disk defect detection in relation to disk drive component factors excepting a disk of the disk drive, and performing a disk defect inspection using the independent recording density value for disk defect detection.Type: ApplicationFiled: April 3, 2009Publication date: October 8, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Seung-youl JEONG, Se-hyun KIM, Jae-deog CHO
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Publication number: 20090190246Abstract: A disk drive includes a disk having a track that includes a data sector divided by a servo sector so that a first data sector portion is on a first side of the servo sector, and a second data sector portion is on a second side of the servo sector. The disk drive reads data by: positioning the head at a first offset position with respect to the track and reading data from the data sector. When a read error occurs between the first and second data sector portions, the disk drive: stores the data from the first data sector portion in memory, moves the head to a second offset position with respect to the track, reads data from the second data sector portion with the head at the second offset position, and stores the data read from the second data sector portion in the memory.Type: ApplicationFiled: January 23, 2009Publication date: July 30, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jae Deog CHO, Seung Youl JEONG
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Publication number: 20090077391Abstract: For protecting data during transmission between a host device and a data storage device, the host device encrypts command-related information and sends the encrypted command-related information to the data storage device. The data storage device decrypts the encrypted command-related information, interprets the decrypted command-related information to generate interpreted commands, and executes the interpreted commands.Type: ApplicationFiled: November 12, 2008Publication date: March 19, 2009Inventors: Seung-Youl Jeong, Jong-Lak Park, Hak-Yeol Sohn, Sung-Youn Cho
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Patent number: 7490357Abstract: For protecting data within a data storage system, such as a hard disk drive, security enable mode is entered. In that mode, initialization data is moved from a first area of a disk to a second area of the disk with a location of the second area being randomly generated. The initialization data is then erased from the first area. Also, a first cipher for firmware and a second cipher for a disk are both changed into a randomly generated value. Later, access to the initialization data from the second area is granted in the security enable mode if the first and second ciphers are the same.Type: GrantFiled: August 2, 2004Date of Patent: February 10, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-Youn Cho, Seung-Youl Jeong, Jong-Lak Park, Hak-Yeol Sohn
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Patent number: 7469303Abstract: For protecting data during transmission between a host device and a data storage device, the host device encrypts command-related information and sends the encrypted command-related information to the data storage device. The data storage device decrypts the encrypted command-related information, interprets the decrypted command-related information to generate interpreted commands, and executes the interpreted commands.Type: GrantFiled: June 14, 2004Date of Patent: December 23, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Youl Jeong, Jong-Lak Park, Hak-Yeol Sohn, Sung-Youn Cho
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Patent number: 7463441Abstract: A data storage device and method of controlling the same. An automatic data update method of a data storage system, includes: counting a number of times a write mode is executed in tracks adjacent to each track of a storage medium; reading data stored in one of the tracks of the storage medium when the number of times the write mode is executed in any tracks adjacent to the one of the tracks exceeds a specified threshold value; and re-writing the read data to the one of the tracks.Type: GrantFiled: January 18, 2005Date of Patent: December 9, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Sung-youn Cho, Ho-joong Choi, Seung-youl Jeong, Jong-lak Park
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Patent number: 7337263Abstract: A method of and apparatus for varying a recording density of a data storage system. The method includes setting a range of a region whose recording density is to be changed, judging whether a region in which data read and write commands are to be executed is within the set range, and performing data read and write operations by allocating only one data among a plurality of continuous tracks as a data track if the region in which the data read and write commands are to be executed is within the set range.Type: GrantFiled: November 9, 2005Date of Patent: February 26, 2008Assignee: Samsung Electrionics Co., Ltd.Inventors: Sung-youn Cho, Seung-youl Jeong, Jong-lak Park