Patents by Inventor Seong Hwan Seo

Seong Hwan Seo 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: 7480217
    Abstract: A method and apparatus for adjusting tracking error balance in an optical disk reproducing apparatus are provided. The method includes pre-setting a tracking error balance for an optical recording medium and adjusting the tracking error balance during reproduction of data from the optical recording medium.
    Type: Grant
    Filed: October 6, 2004
    Date of Patent: January 20, 2009
    Assignee: LG Electronics Inc.
    Inventor: Seong Hwan Seo
  • Patent number: 7212473
    Abstract: A method and device are provided for adjusting a focus bias of an objective lens of an optical pickup for an optical disc using a level of a tracking error signal. The level of the tracking error signal outputted when the optical disc is rotated and driven is detected for a predetermined period of time. An operation of adjusting the focus bias of the objective lens is carried out on the basis of the detected level of the tracking error signal. A focus bias adjustment value is set as an optimum focus bias value at a time when the detected level of the tracking error signal is maximized. In accordance with the method, a period of time for adjusting the focus bias is very short, on the order of “0” to several hundred milliseconds, in comparison with periods of time for adjusting the focus bias in conventional methods, such that the focus bias can be quickly adjusted.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: May 1, 2007
    Assignee: LG Electronics, Inc.
    Inventors: Seong Hwan Seo, Dong Sik Kim, Kyung Soo Kim
  • Publication number: 20050020249
    Abstract: The present invention relates to a communication terminal, and more particularly, to an automatically response method which controls a call requests of sender using the registered schedule in advance. The automatically response method includes registering at least one schedule inputted from recipient, retrieving a schedule information for schedule notice based on at least one schedule, displaying the retrieved schedule information to the recipient, and performing an automatically response to a call requests of sender. Therefore, the invention intercepts a call requests which be telephoned in public place or private time. Also, the invention prevents a misunderstanding between sender and recipient and allows sender to be a call standby effectively, informing sender of the reason why a call is impossible and the available time of calling.
    Type: Application
    Filed: August 24, 2002
    Publication date: January 27, 2005
    Inventor: Seong-Hwan Seo
  • Publication number: 20040076092
    Abstract: A method and device are provided for adjusting a focus bias of an objective lens of an optical pickup for an optical disc using a level of a tracking error signal. The level of the tracking error signal outputted when the optical disc is rotated and driven is detected for a predetermined period of time. An operation of adjusting the focus bias of the objective lens is carried out on the basis of the detected level of the tracking error signal. A focus bias adjustment value is set as an optimum focus bias value at a time when the detected level of the tracking error signal is maximized. In accordance with the method, a period of time for adjusting the focus bias is very short, on the order of “0” to several hundred milliseconds, in comparison with periods of time for adjusting the focus bias in conventional methods, such that the focus bias can be quickly adjusted.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 22, 2004
    Inventors: Seong Hwan Seo, Dong Sik Kim, Kyung Soo Kim
  • Patent number: 6614733
    Abstract: The present invention relates to method and apparatus for determining presence or absence of a disk and size of a disk inserted in a disk holder of a multi-disk changer. A disk size determining apparatus of a multi-disk changer of the present invention, includes a turntable, a plurality of disk holders installed at same distance from the center of the turntable, each disk holder being able to hold a disk of different size selectively, and a single light-emitting element or a single photo-detecting element above or below the turntable, wherein said each disk holder has holes at same distance from the center of the turntable, each hole passing through a light-beam from the light-emitting element in order that the disk size can be determined. A manufacturing cost of a multi-disk changer can be reduced owing to usage of a single detecting sensor.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: September 2, 2003
    Assignee: LG Electronics Inc.
    Inventor: Seong Hwan Seo
  • Publication number: 20020075767
    Abstract: The present invention relates to method and apparatus for determining presence or absence of a disk inserted in a disk holder of a multi-disk changer. A disk size determining apparatus of a multi-disk changer of the present invention, includes a turntable, a plurality of disk holders installed at same distance from the center of the turntable, each disk holder being able to hold a disk of different size selectively, and a single light-emitting element or a single photo-detecting element above or below the turntable, wherein said each disk holder has holes at same distance from the center of the turntable, each hole passing through a light-beam from the light-emitting element in order that the disk size can be determined. A manufacturing cost of a multi-disk changer can be reduced owing to usage of a single detecting sensor.
    Type: Application
    Filed: December 20, 2001
    Publication date: June 20, 2002
    Inventor: Seong Hwan Seo
  • Patent number: 6054450
    Abstract: Disclosed herein is hair-care cosmetic compositions comprising iodopropynyl butylcarbamate and/or a solution of zinc pyrithione in N-acyl ethylenediamine triacetate.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: April 25, 2000
    Assignee: Pacific Corporation
    Inventors: Moon Sam Shin, Sang Cho Choi, Yong Duk Kwak, Seong Hwan Seo, Han Il Jeong, Kyung Hee Seo
  • Patent number: 5886031
    Abstract: Disclosed herein is hair-care cosmetic compositions comprising iodopropynyl butylcarbamate and/or a solution of zinc pyrithione in N-acyl ethylenediamine triacetate.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: March 23, 1999
    Assignee: Pacific Corporation
    Inventors: Moon Sam Shin, Sang Cho Choi, Yong Duk Kwak, Seong Hwan Seo, Han Il Jeong, Kyung Hee Seo
  • Patent number: D839167
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 29, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seong-Hwan Seo, Seung-Jin Kim
  • Patent number: D839169
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 29, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Seong-Hwan Seo, Seung-Jin Kim