Patents by Inventor Hong-Kyun Choi

Hong-Kyun Choi 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: 9886231
    Abstract: A handheld wireless display device, having at least SVGA-type resolution, includes a wireless interface, such as Bluetooth™, WiFi™, Wimax™, cellular or satellite, to allow the device to utilize a number of different hosts, such as a cell phone, personal computer, media player. The display may be monocular or binocular. Input mechanisms, such as switches, scroll wheels, touch pads, allow selection and navigation of menus, playing media files, setting volume and screen brightness contrast, activating host remote controls or performing other commands. The device may include MIM diodes, Hall effect sensors, or other position transducers and/or accelerometers to detect lateral movements along and rotational gestures around the X, Y and Z axes as gesture inputs and movement queues. These commands may change pages, scroll up, down or across an enlarged screen image, such as for web browsing. An embedded software driver permits replicating a high-resolution screen display from a host PC.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: February 6, 2018
    Assignee: Kopin Corporation
    Inventors: Jeffrey J. Jacobsen, John C. C. Fan, Hong-Kyun Choi, Christopher Parkinson
  • Publication number: 20110084900
    Abstract: A handheld wireless display device, having at least SVGA-type resolution, includes a wireless interface, such as BluetoothrM, WiFi™, Wimax™, cellular or satellite, to allow the device to utilize a number of different hosts, such as a cell phone, personal computer, media player. The display may be monocular or binocular. Input mechanisms, such as switches, scroll wheels, touch pads, allow selection and navigation of menus, playing media files, setting volume and screen brightnesdcontrast, activating host remote controls or performing other commands. The device may include MIM diodes, Hall effect sensors, or other position transducers and/or accelerometers to detect lateral movements along and rotational gestures around the X, Y and Z axes as gesture inputs and movement queues. These commands may change pages, scroll up, down or across an enlarged screen image, such as for web browsing. An embedded software driver permits replicating a high-resolution screen display from a host PC.
    Type: Application
    Filed: March 27, 2009
    Publication date: April 14, 2011
    Inventors: Jeffrey J. Jacobsen, John C.C. Fan, Hong-Kyun Choi, Christopher Parkinson
  • Patent number: 4700461
    Abstract: A self-aligned integrated JFET device is described wherein an oxide extension region and a doped polysilicon gate is used as part of a self-aligned mask to form drain and source regions. Asymmetric JFETs for power circuit applications can be made in accordance with the invention. Additionally, complementary enhancement mode JFETs can be made in accordance with the invention, for low power consumption and excellent radiation-hardened characteristics.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: October 20, 1987
    Assignee: Massachusetts Institute of Technology
    Inventors: Hong-Kyun Choi, Bor-Yeu Tsaur