Patents by Inventor Shin-Wuk KANG

Shin-Wuk 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: 20220045873
    Abstract: A security device includes a physical unclonable function (PUF) cell array including PUF cells connected with word lines and bit lines; first decoder circuitry connecting a first bit line connected to a target PUF cell with a first data line and a second bit line connected with a reference PUF cell to a second data line; a digital-to-analog converter (DAC) control circuit outputting first and second digital codes; a first DAC between a power supply voltage and the first data line, the first DAC generating a first analog output in response to the first digital code; a second DAC between the power supply voltage and the second data line, the second DAC generating a second analog output in response to the second digital code; and a sense amplifier comparing the first analog output and the second analog output and outputting a comparison result.
    Type: Application
    Filed: August 5, 2021
    Publication date: February 10, 2022
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hoyoung SHIN, Sung Ung KWAK, Ji-Sung KIM, Shin-Wuk KANG
  • Patent number: 10410032
    Abstract: A fingerprint sensor includes a pixel array and a controller. The pixel array includes a plurality of unit pixels arranged in rows and columns, each of the plurality of unit pixels including, a sensing electrode configured to form a detection capacitance with a finger, a signal generation circuit configured to output an analog signal through a column line based on the detection capacitance, and a protection circuit configured to control a voltage transfer between the sensing electrode and a common line. The controller is configured to control the protection circuit in each of the plurality of unit pixels to transfer a voltage at the sensing electrode of an active unit pixel of the plurality of unit pixels to the sensing electrode in at least one protection unit pixel of the plurality of unit pixels through the common line.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: September 10, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shin-Wuk Kang, Sun-Kwon Kim, Jin-Uk Jeon
  • Publication number: 20170255806
    Abstract: A fingerprint sensor includes a pixel array and a controller. The pixel array includes a plurality of unit pixels arranged in rows and columns, each of the plurality of unit pixels including, a sensing electrode configured to form a detection capacitance with a finger, a signal generation circuit configured to output an analog signal through a column line based on the detection capacitance, and a protection circuit configured to control a voltage transfer between the sensing electrode and a common line. The controller is configured to control the protection circuit in each of the plurality of unit pixels to transfer a voltage at the sensing electrode of an active unit pixel of the plurality of unit pixels to the sensing electrode in at least one protection unit pixel of the plurality of unit pixels through the common line.
    Type: Application
    Filed: December 29, 2016
    Publication date: September 7, 2017
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Shin-Wuk KANG, Sun-Kwon Kim, Jin-Uk Jeon