Patents by Inventor Ju-Hyun Ko

Ju-Hyun Ko 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: 7372336
    Abstract: A small-sized on-chip complementary metal-oxide semiconductor (CMOS) Power Amplifier having improved efficiency is provided herein. The on-chip CMOS power amplifier is capable of improving efficiency and maximizing output thereof by enhancing a K factor, which may cause a problem in a power amplifier having a distributed active transformer structure. The on-chip CMOS power amplifier having an improved efficiency and being fabricated in a small size, the on-chip CMOS power amplifier includes a primary winding located at a first layer, secondary windings located at a second layer, which is an upper part of the first layer, the secondary windings being located corresponding to a position of the primary winding, and a cross section for coupling the second windings with each other.
    Type: Grant
    Filed: December 30, 2005
    Date of Patent: May 13, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Sup Lee, Hyun-Il Kang, Seong-Soo Lee, Holger Lothar, Ju-Hyun Ko, Dong-Hyun Baek, Song-Cheol Hong
  • Publication number: 20080035969
    Abstract: Example embodiments may provide a CMOS image sensor and example methods of forming the same. Example embodiment CMOS image sensors may include a transfer gate insulating pattern between a transfer gate and an active region. A photodiode region and/or a floating doped region may be in the active region at either side of the transfer gate. The transfer gate insulating pattern may include a first part adjacent to the photodiode region and/or a second part adjacent to the floating doped region. The first part may be thicker than the second part.
    Type: Application
    Filed: August 14, 2007
    Publication date: February 14, 2008
    Inventors: Ju-Hyun Ko, Yong-Jei Lee, Jung-Chak Ahn
  • Publication number: 20080035966
    Abstract: A complementary metal-oxide semiconductor (CMOS) image sensor and a method of driving the CMOS image sensor that can reduce the number of devices required by each of a plurality of pixels and can stably drive the pixels, in which each of the pixels includes a photodiode that converts light energy into an electrical signal, a transfer transistor that transmits photocarriers stored in the photodiode to a floating diffusing region, a drive transistor that has a gate connected to the floating diffusion region and drives a voltage signal according to a voltage of the floating diffusion region, the voltage signal being output to an external device, and a capacitive device that is connected between a control voltage source and the floating diffusion region and, when a sensing operation of a corresponding pixel is terminated, deselects the pixel by altering the voltage of the floating diffusion region according to a control voltage provided by the control voltage source.
    Type: Application
    Filed: February 27, 2007
    Publication date: February 14, 2008
    Inventors: Sung-In Hwang, Yong-Jei Lee, Jung-Chak Ahn, Ju-Hyun Ko
  • Publication number: 20070145447
    Abstract: A pixel which may prevent the voltage of a floating diffusion region of the pixel from being outside a desired or predetermined driving voltage range by adjusting the equivalent capacitance of the floating diffusion region may be provided. The pixel may include a photodiode which may convert light energy into photocarriers, a transfer transistor which may transfer the photocarriers accumulated in the photodiode to a floating diffusion region, a select transistor which may transmit a data signal to the exterior in response to a selection control signal, the transmitted data signal having a voltage which may vary according to the voltage of the floating diffusion region, and/or at least one capacitor which may be connected between the floating diffusion region and the select transistor and which may adjust the equivalent capacitance of the floating diffusion region.
    Type: Application
    Filed: December 26, 2006
    Publication date: June 28, 2007
    Inventors: Yong Lee, Jung-Chak Ahn, Ju-Hyun Ko, Sung-In Hwang
  • Publication number: 20070143183
    Abstract: An apparatus and method for providing multimedia contents is provided. The apparatus includes an analyzing unit that analyzes a quantity ratio corresponding to a type of first multimedia content included in an album, a mood code generating unit that generates a mood code corresponding to the quantity ratio as the analyzed result, a content abstracting unit that abstracts a list of second multimedia content corresponding to the generated mood code, and a sending/receiving unit that sends at least one of the list and the second multimedia content included in the list.
    Type: Application
    Filed: November 20, 2006
    Publication date: June 21, 2007
    Inventors: Young-jae Ryu, Seong-won Jo, Ju-hyun Ko, Hwa-youn Suh
  • Publication number: 20060170503
    Abstract: A small-sized on-chip complementary metal-oxide semiconductor (CMOS) Power Amplifier having improved efficiency is provided herein. The on-chip CMOS power amplifier is capable of improving efficiency and maximizing output thereof by enhancing a K factor, which may cause a problem in a power amplifier having a distributed active transformer structure. The on-chip CMOS power amplifier having an improved efficiency and being fabricated in a small size, the on-chip CMOS power amplifier includes a primary winding located at a first layer, secondary windings located at a second layer, which is an upper part of the first layer, the secondary windings being located corresponding to a position of the primary winding, and a cross section for coupling the second windings with each other.
    Type: Application
    Filed: December 30, 2005
    Publication date: August 3, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Sup Lee, Hyun-Il Kang, Seong-Soo Lee, Holger Lothar, Ju-Hyun Ko, Dong-Hyun Baek, Song-Cheol Hong
  • Patent number: D549712
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: August 28, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sun-Young Kim, Jun-Ho Hwang, Ju-Hyun Ko, Ji-Yeon Kwak