Patents by Inventor Hyogun Bae

Hyogun Bae 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: 7768353
    Abstract: Embodiments of the invention may provide for enhancement systems and methods for a power amplifier output control system. In an example embodiment, driver amplifier control may be provided in conjunction with power amplifier control to improve the power efficiency and/or dynamic range of the transmitter system. Furthermore, control over the driver amplifier may allow for relaxed power control slope, which may lessens the burden of digital to analog converters (DACs) in transmitter systems such as cellular transmitter systems. Also, systems and methods in accordance with example embodiments of the invention may provide a less sensitive solution to operational environment variations such as temperature, battery power voltage and implementation IC process.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: August 3, 2010
    Assignee: Samsung Electro-Mechanics Company, Ltd.
    Inventors: Jaejoon Chang, Ki Seok Yang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim, Hyogun Bae, Kijoong Kim, Shinichi Iizuka
  • Patent number: 7746174
    Abstract: Embodiments of the invention may provide for systems and methods for providing a power amplifier with integrated passive device, thereby improving the performance of the power amplifier. The power amplifier may include a signal amplification section, a power combining section, and a coupling device section that interconnects the signal amplification section and the power combining section. The signal amplification section may be implemented on a first substrate, and the power combining section may be implemented on a second substrate, where the first substrate and the second substrate may be different. The power combining section may be implemented by the integrated passive device (IPD) that may have characteristics of high performance passive device with flexibility of implementing diverse functions, including a notch filter, a low pass filter, and/or bypass capacitance for bias network. The power combining section implemented by the integrated passive device may have an improved power combining efficiency.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: June 29, 2010
    Assignee: Samsung Electro-Mechanics Company, Ltd.
    Inventors: Ki Seok Yang, Jaejoon Chang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim, Hyogun Bae, Kijoong Kim, Shinichi Iizuka
  • Publication number: 20090309662
    Abstract: Embodiments of the invention may provide for systems and methods for providing a power amplifier with integrated passive device, thereby improving the performance of the power amplifier. The power amplifier may include a signal amplification section, a power combining section, and a coupling device section that interconnects the signal amplification section and the power combining section. The signal amplification section may be implemented on a first substrate, and the power combining section may be implemented on a second substrate, where the first substrate and the second substrate may be different. The power combining section may be implemented by the integrated passive device (IPD) that may have characteristics of high performance passive device with flexibility of implementing diverse functions, including a notch filter, a low pass filter, and/or bypass capacitance for bias network. The power combining section implemented by the integrated passive device may have an improved power combining efficiency.
    Type: Application
    Filed: June 12, 2008
    Publication date: December 17, 2009
    Inventors: Ki Seok Yang, Jaejoon Chang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim, Hyogun Bae, Kijoong Kim, Shinichi Iizuka
  • Publication number: 20090309661
    Abstract: Embodiments of the invention may provide for enhancement systems and methods for a power amplifier output control system. In an example embodiment, driver amplifier control may be provided in conjunction with power amplifier control to improve the power efficiency and/or dynamic range of the transmitter system. Furthermore, control over the driver amplifier may allow for relaxed power control slope, which may lessens the burden of digital to analog converters (DACs) in transmitter systems such as cellular transmitter systems. Also, systems and methods in accordance with example embodiments of the invention may provide a less sensitive solution to operational environment variations such as temperature, battery power voltage and implementation IC process.
    Type: Application
    Filed: June 13, 2008
    Publication date: December 17, 2009
    Inventors: Jaejoon Chang, Ki Seok Yang, Kyu Hwan An, Wangmyong Woo, Chang-Ho Lee, Younsuk Kim, Hyogun Bae, Kijoong Kim, Shinichi Iizuka