Patents by Inventor Woon-jae Chung

Woon-jae Chung 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: 9792072
    Abstract: An embedded multimedia card (eMMC) includes a flash memory and an eMMC controller that controls operation of the flash memory. The eMMC controller includes a command register that receives from a host a command set defining a next operation specifying second data simultaneously with a transfer of first data specified by a current operation, a first memory that stores the first data, and a second memory that stores the second data.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: October 17, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyung Phil Yoo, Sung Ho Seo, Myung Sub Shin, Woon Jae Chung
  • Patent number: 9619175
    Abstract: A method of operating an eMMC system includes receiving a first command defining a first operation from the host, and storing the first command in a first command register among N command registers, and receiving a second command defining a second operation from the host, and storing the second command in a second command register among the N command registers, wherein the second command is received while the first operation is being performed.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: April 11, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woon Jae Chung, Song Ho Yoon
  • Patent number: 9460796
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: October 4, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 9275742
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: March 1, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Publication number: 20150357041
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Application
    Filed: August 20, 2015
    Publication date: December 10, 2015
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 9030876
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 12, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Publication number: 20150006802
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Application
    Filed: September 19, 2014
    Publication date: January 1, 2015
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 8782353
    Abstract: An information processing device includes a memory array and a controller. The memory array includes a data field that stores file data and a management information field that stores information regarding the data field. The controller controls a writing operation to the memory array. The controller stores a portion of the file data, corresponding to a product of a positive-integer and a predetermined unit block size, in the data field by block units, with reference to the data field information of the management information field.
    Type: Grant
    Filed: October 10, 2008
    Date of Patent: July 15, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Young Cho, Woon-Jae Chung
  • Publication number: 20140112070
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Application
    Filed: December 23, 2013
    Publication date: April 24, 2014
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Publication number: 20140089568
    Abstract: A method of operating an eMMC system includes receiving a first command defining a first operation from the host, and storing the first command in a first command register among N command registers, and receiving a second command defining a second operation from the host, and storing the second command in a second command register among the N command registers, wherein the second command is received while the first operation is being performed.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: WOON JAE CHUNG, SONG HO YOON
  • Publication number: 20140082267
    Abstract: An embedded multimedia card (eMMC) includes a flash memory and an eMMC controller that controls operation of the flash memory. The eMMC controller includes a command register that receives from a host a command set defining a next operation specifying second data simultaneously with a transfer of first data specified by a current operation, a first memory that stores the first data, and a second memory that stores the second data.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 20, 2014
    Inventors: KYUNG PHIL YOO, SUNG HO SEO, MYUNG SUB SHIN, WOON JAE CHUNG
  • Publication number: 20140078344
    Abstract: An image processing system includes a host that generates continuous shooting image data (CSID), and a flash storage device including a memory cell array including a first memory region and a second memory region. A portion of the first memory region is a dedicated CSID buffer region that temporarily stores only CSID. The second memory region stores normal data provided to the flash storage device by the host during a normal program operation. The first memory region supports data access operations including the normal program operation performed at a first speed, and the second memory region supports data access operations performed at a second speed slower than the first speed.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Inventors: SONG HO YOON, JEONG UK KANG, WOON JAE CHUNG
  • Patent number: 8614914
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: December 24, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 8392662
    Abstract: A data management method includes assigning data buffered in a first memory device into at least two different groups for transfer to a second memory device. At least one of the different groups has at least two units of the data assigned thereto. The data is transferred from the first memory device to the second memory device in a sequence according to a respective priority associated with each of the different groups and in group-by-group manner such that units of the data assigned to a group having a higher priority are transferred to the second memory device prior to units of the data assigned to a group having a lower priority. Related systems and methods are also discussed.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: March 5, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, Jin-Hwa Lee, Woon-Jae Chung, Sang-Hoon Choi, Nam-Hoon Kim
  • Publication number: 20120284452
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 8, 2012
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 8223544
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: July 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 8214581
    Abstract: A system for cache synchronization includes a data managing unit and a storage medium. The data managing unit is configured to control storing of data of a buffer cache of the storage medium, in response to an event signal received from a host, by classifying the data of the buffer cache into random data and sequential data. The storage medium includes a first area and a second area, and is configured to store the random data and an address information map in the first area, and to store the sequential data in the second area.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-ho Jang, Woon-jae Chung, Joon-ho Lee
  • Publication number: 20110314207
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 8031522
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 4, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • Patent number: 7978681
    Abstract: An apparatus, system, and method for discovering a path MTU in a data communication network, wherein a path MTU option header is included in a signal message or first data packet and thus a MTU suitable for a routing path can be determined. A network apparatus for discovering a path MTU maximum transmission unit (MTU) in a data communication network, including a MTU-comparing unit MTU-comparer detecting a path MTU recorded on a predetermined packet transferred over a routing path between a source node and a destination node and comparing the detected path MTU with an internal MTU stored in the MTU-comparing unit MTU-comparer; and an event-processing unit event-processor updating the path MTU recorded on the predetermined packet to contain the internal MTU if the detected path MTU is larger than the internal MTU.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: July 12, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Woon-jae Chung, Byung-in Mun, Rajesh Patharkar