Patents by Inventor Jung-Min Choi

Jung-Min Choi 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).

  • Publication number: 20100182845
    Abstract: A method for performing a copy-back operation in a non-volatile memory device includes: measuring and recording a maximum program voltage used to program a part of target data to copy-back when a copy-back command is inputted; and performing a copy-back operation using the recorded maximum program voltage.
    Type: Application
    Filed: June 26, 2009
    Publication date: July 22, 2010
    Inventors: Nam-Kyeong Kim, Jung-Min Choi
  • Publication number: 20090251984
    Abstract: A static memory device includes a bit cell connected to an internal voltage line, and a power supply control circuit connected between the internal voltage line and a power supply voltage, wherein the power supply control circuit is configured to supply the power supply voltage level to the internal voltage line, and the power supply control circuit is configured to perform a write assist function that includes floating the internal voltage line during a write operation on the bit cell, the internal voltage line being floated in response to a signal of a mode control signal group.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 8, 2009
    Inventors: Jong-Hoon Jung, Soung-Hoon Sim, Jung-Min Choi
  • Patent number: 7336704
    Abstract: Provided are a method of updating a tap coefficient of a channel equalizer while reducing the number of calculations and the divergence, and a circuit arranged and configured to execute the method. The method includes evaluating whether or not an error of the channel equalizer converges within a range of a threshold of visibility and determining the status of a control signal to select whether the tap coefficient of the channel equalizer will be updated using a least mean square (LMS) algorithm or a Kalman algorithm, wherein the LMS algorithm is the default error correction means and the Kalman algorithm is utilized when the control signal indicates the presence of a training signal.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: February 26, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-Ho Kim, Jung-Min Choi, Jong-Wha Chong
  • Patent number: 7193666
    Abstract: Disclosed is an LCD device for performing bi-directional display. The LCD device includes first and second display units, and a light supplying unit. The first display unit includes an LCD panel and a transflective film that is disposed under the LCD panel and has layers in which first and second layers having different refractivity indexes are alternately stacked. The transflective film partially reflects and transmits light incident onto the film. The light supplying unit is disposed between the first and second display units, and provide the first and second display units with light generated from a lamp by dividing the light, to thereby regulate a contrast ratio of a luminance between the first and second display units. Therefore, the structure of an LCD panel for performing bi-directional image display can be simplified, and the light loss in the transmission mode can be reduced.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: March 20, 2007
    Assignee: Samsung Electronics Co, Ltd.
    Inventors: Jung-Min Choi, Dong-Ho Lee
  • Publication number: 20070002316
    Abstract: A wafer aligner may comprise a chuck which supports a wafer thereon. The wafer aligner may also comprise a particle detector which irradiates a light onto a back surface of the wafer loaded on the chuck and receives a light reflected from the back surface of the wafer to output a detection signal. The wafer aligner may also comprise a controller which checks whether a particle exists on the back surface of the wafer based on the detection signal from the particle detector, and causes the wafer aligner to enter an interlock state when the particle exists on the back surface of the wafer.
    Type: Application
    Filed: June 26, 2006
    Publication date: January 4, 2007
    Inventor: Jung-Min Choi
  • Patent number: 6939019
    Abstract: A backlight assembly including a light guide plate having a plurality of side surfaces, a first lamp having a first lamp tube disposed adjacent to the plurality of side surfaces, first and second electrodes disposed at opposite end portions of the first lamp tube, a second lamp having a second lamp tube disposed adjacent to the plurality of side surfaces, third and fourth electrodes disposed at opposite end portions of the second lamp tube, the third and first electrodes being disposed adjacent to one another, and the fourth and second electrodes being disposed adjacent to one another, a connector for electrically connecting the first and third electrodes, and a power supply for supplying a first discharge voltage to the second electrode and a second discharge voltage to the fourth electrode, the first and second discharge voltages having a phase difference of 180° and a same voltage level.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: September 6, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Min Choi, Hee-June Kwak, Sang-Duk Lee
  • Publication number: 20050062913
    Abstract: Disclosed is an LCD device for performing bi-directional display. The LCD device includes first and second display units, and a light supplying unit. The first display unit includes an LCD panel and a transflective film that is disposed under the LCD panel and has layers in which first and second layers having different refractivity indexes are alternately stacked. The transflective film partially reflects and transmits light incident onto the film. The light supplying unit is disposed between the first and second display units, and provide the first and second display units with light generated from a lamp by dividing the light, to thereby regulate a contrast ratio of a luminance between the first and second display units. Therefore, the structure of an LCD panel for performing bi-directional image display can be simplified, and the light loss in the transmission mode can be reduced.
    Type: Application
    Filed: November 3, 2004
    Publication date: March 24, 2005
    Inventors: Jung-Min Choi, Dong-Ho Lee
  • Patent number: 6831711
    Abstract: Disclosed is an LCD device for performing bi-directional display. The LCD device includes first and second display units, and a light supplying unit. The first display unit includes an LCD panel and a transflective film that is disposed under the LCD panel and has layers in which first and second layers having different refractivity indexes are alternately stacked. The transflective film partially reflects and transmits light incident onto the film. The light supplying unit is disposed between the first and second display units, and provide the first and second display units with light generated from a lamp by dividing the light, to thereby regulate a contrast ratio of a luminance between the first and second display units. Therefore, the structure of an LCD panel for performing bi-directional image display can be simplified, and the light loss in the transmission mode can be reduced.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: December 14, 2004
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Min Choi, Dong-Ho Lee
  • Publication number: 20040228398
    Abstract: Provided are a method of updating a tap coefficient of a channel equalizer while reducing the number of calculations and the divergence, and a circuit arranged and configured to execute the method. The method includes evaluating whether or not an error of the channel equalizer converges within a range of a threshold of visibility and determining the status of a control signal to select whether the tap coefficient of the channel equalizer will be updated using a least mean square (LMS) algorithm or a Kalman algorithm, wherein the LMS algorithm is the default error correction means and the Kalman algorithm is utilized when the control signal indicates the presence of a training signal.
    Type: Application
    Filed: January 16, 2004
    Publication date: November 18, 2004
    Inventors: Min-Ho Kim, Jung-Min Choi, Jong-Wha Chong
  • Publication number: 20040017529
    Abstract: Disclosed is an LCD device for performing bi-directional display. The LCD device includes first and second display units, and a light supplying unit. The first display unit includes an LCD panel and a transflective film that is disposed under the LCD panel and has layers in which first and second layers having different refractivity indexes are alternately stacked. The transflective film partially reflects and transmits light incident onto the film. The light supplying unit is disposed between the first and second display units, and provide the first and second display units with light generated from a lamp by dividing the light, to thereby regulate a contrast ratio of a luminance between the first and second display units. Therefore, the structure of an LCD panel for performing bi-directional image display can be simplified, and the light loss in the transmission mode can be reduced.
    Type: Application
    Filed: June 3, 2003
    Publication date: January 29, 2004
    Inventors: Jung-Min Choi, Dong-Ho Lee
  • Publication number: 20030198038
    Abstract: A backlight assembly including a light guide plate having a plurality of side surfaces, a first lamp having a first lamp tube disposed adjacent to the plurality of side surfaces, first and second electrodes disposed at opposite end portions of the first lamp tube, a second lamp having a second lamp tube disposed adjacent to the plurality of side surfaces, third and fourth electrodes disposed at opposite end portions of the second lamp tube, the third and first electrodes being disposed adjacent to one another, and the fourth and second electrodes being disposed adjacent to one another, a connector for electrically connecting the first and third electrodes, and a power supply for supplying a first discharge voltage to the second electrode and a second discharge voltage to the fourth electrode, the first and second discharge voltages having a phase difference of 180° and a same voltage level.
    Type: Application
    Filed: November 15, 2002
    Publication date: October 23, 2003
    Inventors: Jung-Min Choi, Hee-June Kwak
  • Patent number: D422286
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: April 4, 2000
    Assignee: LG Electronics, Inc.
    Inventors: Jung Min Choi, Woon Hyung Kim