Patents by Inventor Woo-min Jung

Woo-min Jung 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).

  • Chamber air cleaner and an intake apparatus for engine including the same
    Patent number: 8562726
    Abstract: A chamber air cleaner apparatus may include a chamber housing mounted through a connector onto an air hose wherein the air hose may be connected to a main air cleaner, an intake duct attached to an outer surface of the chamber housing wherein exterior air may be introduced into the chamber housing through the intake duct, a variable valve pivotally installed in the vicinity of the intake duct and selectively opening according to an air suction pressure applied thereto, and a filter element mounted between the intake duct and the connector within the chamber housing to purify the introduced air through the intake duct.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: October 22, 2013
    Assignee: Hyundai Motor Company
    Inventors: Je Hui Jun, Young Hak Jang, Woo Min Jung
  • CHAMBER AIR CLEANER AND AN INTAKE APPARATUS FOR ENGINE INCLUDING THE SAME
    Publication number: 20130118434
    Abstract: A chamber air cleaner apparatus may include a chamber housing mounted through a connector onto an air hose wherein the air hose may be connected to a main air cleaner, an intake duct attached to an outer surface of the chamber housing wherein exterior air may be introduced into the chamber housing through the intake duct, a variable valve pivotally installed in the vicinity of the intake duct and selectively opening according to an air suction pressure applied thereto, and a filter element mounted between the intake duct and the connector within the chamber housing to purify the introduced air through the intake duct.
    Type: Application
    Filed: January 12, 2012
    Publication date: May 16, 2013
    Applicant: Hyundai Motor Company
    Inventors: Je Hui JUN, Young Hak JANG, Woo Min JUNG
  • Method and apparatus to detect land/groove switch position in seek mode, and optical disk drive using the same
    Patent number: 7952964
    Abstract: A land/groove switch position detecting method includes measuring information about a land/groove switch generation timing of a disc, using a first signal having a frequency that varies in proportion to a rotation speed of the disk in a normal playback mode, and a second signal having a predetermined frequency higher than the frequency of the first signal, and calculating a predicted land/groove switch generation position in the seek mode, using the information about the land/groove switch generation timing.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: May 31, 2011
    Assignee: SAMSUNG Electronics Co., Ltd.
    Inventors: Woo-min Jung, Nam-taek Hyung, Sang-hoon Moon
  • METHOD AND APPARATUS TO DETECT LAND/GROOVE SWITCH POSITION IN SEEK MODE, AND OPTICAL DISK DRIVE USING THE SAME
    Publication number: 20080298182
    Abstract: A land/groove switch position detecting method includes measuring information about a land/groove switch generation timing of a disc, using a first signal having a frequency that varies in proportion to a rotation speed of the disk in a normal playback mode, and a second signal having a predetermined frequency higher than the frequency of the first signal, and calculating a predicted land/groove switch generation position in the seek mode, using the information about the land/groove switch generation timing.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 4, 2008
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Woo-min JUNG, Nam-taek Hyung, Sang-hoon Moon
  • High-speed focus pull-in controllers for adaptively responding to disk surface vibration of an optical disk device and focus control methods thereof
    Patent number: 7315495
    Abstract: Upper and lower limit values of disk surface vibration are detected and stored per a predetermined time while a signal is reproduced from an optical disk device and, if focus on the disk deviates from a focus allowable range initially set, a focus repull-in operation is performed with reference to the upper and lower limit surface vibration values stored previously.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: January 1, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-min Jung
  • High-speed focus pull-in controllers for adaptively responding to disk surface vibration of an optical disk device and focus control methods thereof
    Publication number: 20050195708
    Abstract: Upper and lower limit values of disk surface vibration are detected and stored per a predetermined time while a signal is reproduced from an optical disk device and, if focus on the disk deviates from a focus allowable range initially set, a focus repull-in operation is performed with reference to the upper and lower limit surface vibration values stored previously.
    Type: Application
    Filed: February 15, 2005
    Publication date: September 8, 2005
    Inventor: Woo-min Jung