Patents by Inventor Hyung Joo Lee

Hyung Joo 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).

  • Digital video cassette recorder for preventing picture distortion during search and method for processing picture using the same
    Patent number: 6728468
    Abstract: A digital video cassette recorder capable of preventing a picture from being distorted during a search, and a method for processing a picture according to the same are provided.
    Type: Grant
    Filed: July 1, 1998
    Date of Patent: April 27, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Hyung-joo Lee
  • Digital video cassette recorder for preventing picture distortion during search and method for processing picture using the same
    Publication number: 20040013407
    Abstract: A digital video cassette recorder capable of preventing a picture from being distorted during a search, and a method for processing a picture according to the same are provided.
    Type: Application
    Filed: July 14, 2003
    Publication date: January 22, 2004
    Inventor: Hyung-Joo Lee
  • DIGITAL VIDEO CASSETTE RECORDER FOR PREVENTING PICTURE DISTORTION DURING SEARCH AND METHOD FOR PROCESSING PICTURE USING THE SAME
    Publication number: 20030133697
    Abstract: A digital video cassette recorder capable of preventing a picture from being distorted during a search, and a method for processing a picture according to the same are provided.
    Type: Application
    Filed: July 1, 1998
    Publication date: July 17, 2003
    Inventor: HYUNG-JOO LEE
  • Semiconductor device having improved on-off current characteristics
    Patent number: 6291865
    Abstract: A semiconductor device and a method of fabricating the same are disclosed in the present invention. The semiconductor device includes a semiconductor substrate, first and second gate insulating layers on the semiconductor layer, the first and second insulating layer having different dielectric constants, and a gate electrode on the first and second gate insulating layers.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: September 18, 2001
    Assignee: LG Semicon Co., Ltd.
    Inventor: Hyung Joo Lee
  • Angiotensin converting enzyme inhibitors
    Patent number: 6232438
    Abstract: An angiotensin converting enzyme inhibitor derived from foodstuff with high activity and high safety, suitable for mass production, having the formula (1) His-His-Leu or (2) His-Leu-Leu and physiologically acceptable salts thereof.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: May 15, 2001
    Assignee: Nong Shim Co., Ltd.
    Inventors: Jae Ik Shin, Hyung Jae Lee, Hyung Joo Lee, Hee Sop Nam, Chang Won Ahn
  • Image change detecting machine by using character generator and method thereof
    Patent number: 6233006
    Abstract: There is provided an image change detecting machine and a method for easily monitoring the moving of subjects by using character generator.
    Type: Grant
    Filed: May 4, 1998
    Date of Patent: May 15, 2001
    Assignee: Samsong Industries, Ltd.
    Inventor: Hyung Joo Lee
  • Tracking control circuit and method in digital image recording and reproducing device using bit error rate
    Patent number: 5930448
    Abstract: A tracking control circuit is disclosed for use in a digital image recording and reproducing device which has a mechanism (22) for controlling the movement of a magnetic medium according to a servo control signal, which has an error correction code decoder (12), and which reproduces data recorded on the recording medium in sync blocks. The tracking control circuit includes a bit error rate detector (14), a control unit (16, 18) and a servo circuit (20). The bit error rate detector (14) calculates the frequency of bit errors in the reproduced data by counting the number of error flags from the error correction code decoder in each sync block to thereby producing bit error rate data. The control unit (16, 18) generates tracking control data corresponding to bit error rate data generated by the bit error rate detector (14) when the bit error rate data from the bit error rate detector exceeds a predetermined limit.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: July 27, 1999
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Woo-Nyun Lee, Hyung-Joo Lee