Patents by Inventor Chang-Duck Lee

Chang-Duck Lee 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: 9684361
    Abstract: In a method of operating a device, signals associated with wakeup of the device are detected using a first physical layer among a plurality of physical layers, and a detection signal is generated based on the detected signals. The detection signal is transmitted directly to a power management circuit. The first physical layer is included in logical lane #0 or physical lane #0.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: June 20, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun Tae Park, Je Hyuck Song, Jong Kyun Min, Chang Duck Lee, Hyun Kyu Jang
  • Publication number: 20150205339
    Abstract: In a method of operating a device, signals associated with wakeup of the device are detected using a first physical layer among a plurality of physical layers, and a detection signal is generated based on the detected signals. The detection signal is transmitted directly to a power management circuit. The first physical layer is included in logical lane #0 or physical lane #0.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventors: Hyun Tae PARK, Je Hyuck SONG, Jong Kyun MIN, Chang Duck LEE, Hyun Kyu JANG
  • Patent number: 8788905
    Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Duck Lee, Seok-won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Patent number: 8112692
    Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: February 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Duck Lee, Seok-won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Patent number: 8054689
    Abstract: A memory card including a memory controller, a memory system and a method to control a memory are provided. The memory card includes a flash memory, a memory interface outputting a writing data signal to be written into the flash memory, and a multi-level converter transforming the writing data signal into a writing voltage signal to be provided to the flash memory. The writing voltage signal has one of different voltage levels in accordance with plural bits of the writing data signal.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: November 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seok-Won Heo, Min-Soo Kang, Chang-Duck Lee, Soong-Man Shin
  • Publication number: 20110119560
    Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Inventors: Chang-Duck Lee, Seok-won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Publication number: 20110119561
    Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Inventors: Chang-Duck Lee, Seok-won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Patent number: 7904790
    Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.
    Type: Grant
    Filed: March 29, 2007
    Date of Patent: March 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Duck Lee, Seok-won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Patent number: 7698524
    Abstract: An apparatus for controlling data exchange with a memory device includes an interface configured to receive an arbitration signal indicating when the apparatus has use of a shared bus and an interface to the memory device configured to provide a clock signal to the memory device that synchronizes data exchange between the apparatus and the memory device. A selection circuit selectively supplies the clock signal to the memory device responsive to the arbitration signal.
    Type: Grant
    Filed: May 5, 2006
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Duck Lee, Sam-Yong Bahng, Sin-Ho Yang, Kui-Yon Mun
  • Publication number: 20090316485
    Abstract: A memory card including a memory controller, a memory system and a method to control a memory are provided. The memory card includes a flash memory, a memory interface outputting a writing data signal to be written into the flash memory, and a multi-level converter transforming the writing data signal into a writing voltage signal to be provided to the flash memory. The writing voltage signal has one of different voltage levels in accordance with plural bits of the writing data signal.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seok-Won Heo, Min-Soo Kang, Chang-Duck Lee, Soong-Man Shin
  • Publication number: 20080222491
    Abstract: A method of transmitting data from a flash memory device to a host includes: detecting whether the data includes an error or not; performing an error correction operation for correcting the data having the error when the error exists in the data; and sequentially storing the data having the error and a plurality of subsequent read data without outputting. The storing of the data is performed during the performing of the error correction operation.
    Type: Application
    Filed: March 30, 2007
    Publication date: September 11, 2008
    Inventors: Chang-Duck Lee, Seok-Won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Publication number: 20080175089
    Abstract: A flash memory card including a main memory core, a removable supplementary memory core, and a controller operating to control the main and supplementary memory cores. The supplementary memory core includes a plurality of memory cores and is replaceable.
    Type: Application
    Filed: April 2, 2007
    Publication date: July 24, 2008
    Inventors: Seok-Won Heo, Chang-Duck Lee, Jae-Sung Yu, Dong-Ryoul Lee
  • Publication number: 20080168319
    Abstract: An ECC controller for a flash memory device storing M-bit data (M: a positive integer equal to or greater than 2) includes an encoder and a decoder. The encoder generates first ECC data for input data to be stored in the flash memory device using a first error correction scheme and generates second ECC data for the input data using a second error correction scheme. The input data, the first ECC data, and the second ECC data are stored in the flash memory device. The decoder calculates the number of errors in data read from the flash memory device and corrects the errors in the read data using one of the first ECC data and the second ECC data selectively based on the number of the errors.
    Type: Application
    Filed: March 29, 2007
    Publication date: July 10, 2008
    Inventors: Chang-Duck Lee, Seok-won Heo, Si-Yung Park, Dong-Ryoul Lee
  • Publication number: 20080140879
    Abstract: A memory system includes a memory and a memory controller coupled to the memory and configured to be connected to an advanced technology attachment (ATA) host, the memory controller including a memory interface configured to access to the memory and configured to control an access cycle to the memory by the memory interface in accordance with date rate information for the ATA host. The data rate information may include an ATA transmission mode of the ATA host.
    Type: Application
    Filed: December 6, 2007
    Publication date: June 12, 2008
    Inventors: Chang-Duck Lee, Kui-Yon Mun
  • Publication number: 20070124558
    Abstract: An apparatus for controlling data exchange with a memory device includes an interface configured to receive an arbitration signal indicating when the apparatus has use of a shared bus and an interface to the memory device configured to provide a clock signal to the memory device that synchronizes data exchange between the apparatus and the memory device.
    Type: Application
    Filed: May 5, 2006
    Publication date: May 31, 2007
    Inventors: Chang-Duck Lee, Sam-Yong Bahng, Sin-Ho Yang, Kui-Yon Mun