Patents by Inventor Min Hee Kang

Min Hee Kang 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: 20100058605
    Abstract: A clothes dryer having an improved configuration to allow a user to safely pull out a water tank is disclosed. The clothes dryer includes a body having a water tank housing, a water tank detachably mounted into the water tank housing and serving to store water collected from an object to be dried, and a safety guide to limit movement of the water tank in a first direction when the water tank is separated from the water tank housing in the first direction, so as to allow a user to guide movement of the water tank in a second direction. The safety guide includes a first stopper provided at the water tank housing, and a second stopper provided at the water tank to correspond to the first stopper when the water tank is separated in the first direction.
    Type: Application
    Filed: June 25, 2009
    Publication date: March 11, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Min Hee KANG
  • Patent number: 7619727
    Abstract: The present invention relates to a light wavelength and intensity measuring device. The device automatically measures a center wavelength of the light source and an intensity of the light corresponding to the center wavelength by using a main photodetector, at least one optical filter, and at least one sub photodetector when the light source is connected to the device. The main photodetector detects the intensity of the light applied by the light source, the optical filter transmits the light corresponding to a prediscriminated transmission wavelength, and the sub photodetector detects the intensity of the light transmitted through the optical filter. Therefore, the light intensity is more accurately measured by calibrating the intensity according to the wavelength.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: November 17, 2009
    Assignee: Raybit Systems Inc.
    Inventors: Gap Youl Lyu, Kilhun Koo, Min Hee Kang, Ba Cao
  • Publication number: 20090175623
    Abstract: An optical signal detector is provided that detects an optical signal from an optical source using a plurality of optical sensors having different wavelength selectivities, thereby determining the peak wavelength of the optical signal and measuring the power of an optical signal corresponding to the peak wavelength. According to the optical signal detector, separate optical filters are not required and space and costs attributable to the installation of the optical filters can be saved, and thus there are effects in that the overall size and manufacturing costs of the device can be reduced.
    Type: Application
    Filed: July 25, 2008
    Publication date: July 9, 2009
    Applicants: PHOTONIC SOLUTION, INC., RAYBIT SYSTEMS, INC.
    Inventors: Chan Yong PARK, Gap Youl LYU, Kil Hun KOO, Min Hee KANG
  • Patent number: 7512166
    Abstract: The present invention relates to an optical power and extinction ratio controlling device and method. An optical signal output from a light source is detected and optical power and extinction ratio of the light source are controlled. In detail, a feedback signal is provided to the light source to automatically control the bias current based on a DC signal output by a photodetector detecting the optical signal. Therefore, the optical output of the light source is maintained. Also, an optical signal output by the photodetector is converted into a predetermined times DC signal, and a feedback signal is provided to the light source to automatically control the modulation current based on the DC signal. Therefore, the extinction ratio of the light source is maintained. As a result, the extinction ratio is automatically maintained to satisfy the change of condition and the characteristic of light source, thereby maintaining quality optical outputs.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: March 31, 2009
    Assignee: Raybit Systems
    Inventors: Gap Youl Lyu, Kilhun Koo, Min Hee Kang
  • Publication number: 20090033923
    Abstract: The present invention relates to a light wavelength and intensity measuring device. The device automatically measures a center wavelength of the light source and an intensity of the light corresponding to the center wavelength by using a main photodetector, at least one optical filter, and at least one sub photodetector when the light source is connected to the device. The main photodetector detects the intensity of the light applied by the light source, the optical filter transmits the light corresponding to a prediscriminated transmission wavelength, and the sub photodetector detects the intensity of the light transmitted through the optical filter. Therefore, the light intensity is more accurately measured by calibrating the intensity according to the wavelength.
    Type: Application
    Filed: June 7, 2006
    Publication date: February 5, 2009
    Inventors: Gap Youl Lyu, Kilhun Koo, Min Hee Kang, Ba Cao
  • Publication number: 20080128587
    Abstract: The present invention relates to an optical power and extinction ratio controlling device and method. An optical signal output from a light source is detected and optical power and extinction ratio of the light source are controlled. In detail, a feedback signal is provided to the light source to automatically control the bias current based on a DC signal output by a photodetector detecting the optical signal. Therefore, the optical output of the light source is maintained. Also, an optical signal output by the photodetector is converted into a predetermined times DC signal, and a feedback signal is provided to the light source to automatically control the modulation current based on the DC signal. Therefore, the extinction ratio of the light source is maintained. As a result, the extinction ratio is automatically maintained to satisfy the change of condition and the characteristic of light source, thereby maintaining quality optical outputs.
    Type: Application
    Filed: December 1, 2006
    Publication date: June 5, 2008
    Applicant: Raybit Systems Inc.
    Inventors: Gap Youl Lyu, Kilhun Koo, Min Hee Kang