Patents by Inventor Hee Bum Lee

Hee Bum Lee 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: 11244139
    Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: February 8, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Il Kwon, Min Gyu Kim, Sun Kwon Kim, Seong Il Park, Jong Sung Lee, Hee Bum Lee
  • Publication number: 20200218870
    Abstract: A fingerprint recognition device includes a display, a touch sensor panel (TSP) which senses a touch, and a fingerprint recognition integrated circuit (FPIC) which scans a fingerprint. The FPIC includes a pixel including a photoelectric element which receives light reflected by the fingerprint, a low noise amplifier (LNA) which outputs a signal voltage by converting an electric charge received from the photoelectric element, and an analog-to-digital converter (ADC) which converts the signal voltage into a digital signal. The ADC includes a variable reference voltage generator which provides a variable reference voltage, a comparator which adds the variable reference voltage to the signal voltage, performs correlated double sampling on the result of the addition, and outputs a comparison signal by comparing the result of the correlated double sampling with a ramp voltage, and a counter which outputs the digital signal by counting the comparison signal.
    Type: Application
    Filed: August 7, 2019
    Publication date: July 9, 2020
    Inventors: Yong Il Kwon, Min Gyu Kim, Sun Kwon Kim, Seong Il Park, Jong Sung Lee, Hee Bum Lee
  • Patent number: 10432865
    Abstract: A digital photographing apparatus and method are disclosed, The digital photographing apparatus includes a position sensor configured to detect position information of a lens unit, and an optical driving processor configured to calculate a movement position variation of the lens unit based on the position information of the lens unit, compare the movement position variation with a reference movement position variation, and cause the movement position variation to converge on the reference movement position variation.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: October 1, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Seung Hyun, Hee Bum Lee
  • Patent number: 10291851
    Abstract: An optical image stabilizer for a camera module includes a camera comprising a lens; and an optical image stabilizer processor configured to: generate a movement pattern signal, adjust a position of the lens of the camera according to the movement pattern signal, and calibrate a gain according to the adjusted position of the lens.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: May 14, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sung Mok Lee, Hee Bum Lee
  • Patent number: 10122532
    Abstract: A security verification apparatus using biometric information and a security verification method are described. The security verification apparatus includes a sensor configured to acquire images of biometric information of a user, and scramble the images of the biometric information by using a received key matrix. The security verification apparatus further includes an information processor configured to generate the key matrix by using a random key, transmit the key matrix to the sensor, decode data of the scrambled images received from the sensor by using the key matrix, and verify the user.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: November 6, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Hee Bum Lee
  • Publication number: 20170093577
    Abstract: A security verification apparatus using biometric information and a security verification method are described. The security verification apparatus includes a sensor configured to acquire images of biometric information of a user, and scramble the images of the biometric information by using a received key matrix. The security verification apparatus further includes an information processor configured to generate the key matrix by using a random key, transmit the key matrix to the sensor, decode data of the scrambled images received from the sensor by using the key matrix, and verify the user.
    Type: Application
    Filed: June 8, 2016
    Publication date: March 30, 2017
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Hee Bum LEE
  • Publication number: 20160301874
    Abstract: A digital photographing apparatus and method are disclosed, The digital photographing apparatus includes a position sensor configured to detect position information of a lens unit, and an optical driving processor configured to calculate a movement position variation of the lens unit based on the position information of the lens unit, compare the movement position variation with a reference movement position variation, and cause the movement position variation to converge on the reference movement position variation.
    Type: Application
    Filed: March 4, 2016
    Publication date: October 13, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hae Seung HYUN, Hee Bum LEE
  • Patent number: 9467623
    Abstract: Embodiments of the invention provide an image correcting apparatus for an imaging device including a camera module having a first motion sensor. The image correct apparatus includes a second motion sensor sensing a movement, and a controller determining whether the movement gets out of an operation range of the first motion sensor, and correcting an image obtained from the camera module based on movement data sensed by the second motion sensor, when the movement gets out of the operation range of the first motion sensor. Generation of blur in an image when a displacement of handshaking is at an angle equal to or greater than a correction angle of an optical image stabilizer (OIS) module is prevented, and thus, a clear image is obtained.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: October 11, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Seung Hyun, Hee Bum Lee
  • Publication number: 20160227120
    Abstract: An optical image stabilizer for a camera module includes a camera comprising a lens; and an optical image stabilizer processor configured to: generate a movement pattern signal, adjust a position of the lens of the camera according to the movement pattern signal, and calibrate a gain according to the adjusted position of the lens.
    Type: Application
    Filed: January 6, 2016
    Publication date: August 4, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Mok LEE, Hee Bum LEE
  • Publication number: 20150293623
    Abstract: A touch interaction apparatus may be capable of providing preset different images by one key according to a degree of touch interaction. The touch interaction apparatus may include: an input unit having a plurality of keys formed in preset touch regions and receiving a user's touch interaction in a corresponding touch region of each of the plurality of keys; and a controlling unit outputting one of a plurality of images associated with a corresponding key according to a degree of touch interaction input to a touch region corresponding to a key of the input unit.
    Type: Application
    Filed: August 19, 2014
    Publication date: October 15, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ho Jun KIM, Hee Bum LEE, Mi Jin CHOI, Hyun Ho LIM
  • Publication number: 20150220198
    Abstract: Disclosed herein are a display device including a stylus pen including: a touch sensor; and a stylus pen detecting a pressure generated due to a touch on the touch sensor and generating a driving signal corresponding to the pressure and applying the generated driving signal to the touch sensor, and and an image information displaying method using the same.
    Type: Application
    Filed: November 11, 2014
    Publication date: August 6, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Dong Sik Yoo, Peter Jean Woo Lim, Hee Bum Lee
  • Publication number: 20150130990
    Abstract: There is provided a camera module, including: a housing including a lens barrel therein; an actuator including a driving coil wound around an outer surface of the lens barrel and a magnet disposed in the housing to face the driving coil; a substrate disposed on a lower portion of the housing and having an image sensor attached to one surface thereof; and an offset coil provided on the substrate, wherein the driving coil generates a magnetic field in a direction toward the offset coil and the offset coil generates a magnetic field in a direction toward the driving coil.
    Type: Application
    Filed: April 3, 2014
    Publication date: May 14, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ho Yun CHO, Hee Bum Lee, Young Seok Yoon
  • Publication number: 20150130954
    Abstract: Embodiments of the invention provide an image correcting apparatus for an imaging device including a camera module having a first motion sensor. The image correct apparatus includes a second motion sensor sensing a movement, and a controller determining whether the movement gets out of an operation range of the first motion sensor, and correcting an image obtained from the camera module based on movement data sensed by the second motion sensor, when the movement gets out of the operation range of the first motion sensor. Generation of blur in an image when a displacement of handshaking is at an angle equal to or greater than a correction angle of an optical image stabilizer (OIS) module is prevented, and thus, a clear image is obtained.
    Type: Application
    Filed: April 30, 2014
    Publication date: May 14, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hae Seung HYUN, Hee Bum LEE
  • Patent number: 8970549
    Abstract: Disclosed herein are a touch screen and a method for driving the same. The touch screen includes: a switching unit including a plurality of switches connected to traces of driving lines and sensing lines of the touch screen, respectively; a sensing unit sensing capacitance and electromagnetic resonance (EMR) according to a switching operation of the switching unit; and a main controlling unit controlling the switching operation of the switching unit according to an operation mode of the touch screen. Therefore, it is possible to improve sensitivity of sensing without increasing a bezel region of the touch screen. In addition, the EMR and the capacitance may be sensed using the same trace structure, and an antenna pattern may be formed and operated as an antenna.
    Type: Grant
    Filed: March 17, 2013
    Date of Patent: March 3, 2015
    Assignee: Samsung Electro-Machanics Co., Ltd.
    Inventors: Hee Bum Lee, Dong Sik Yoo, Ho Yun Cho, Jae Hyuk Jang, Yun Ki Hong, Kyoung Soo Chae
  • Publication number: 20140374386
    Abstract: There is provided a method of forming a nanoparticle including: preparing a wire formed of a material for forming a nano-sized particle; connecting the wire to first and second electrodes; pre-heating the wire using a pre-heating device; and applying energy to the wire using a power supply to form the nano-sized particle, wherein after the pre-heating is performed, a skin depth of the wire is larger than a radius of the wire.
    Type: Application
    Filed: September 17, 2013
    Publication date: December 25, 2014
    Applicant: Samsung Electro-Mechanics, Co., Ltd.
    Inventors: Sung Ho LEE, Hee Bum LEE, Jung Wook SEO
  • Patent number: 8890829
    Abstract: Disclosed herein is a digitizer including: a driving coil supplied with current to induce a magnetic line of force; a sensing coil disposed so as to intersect the driving coil to flow induced current in one direction by the magnetic line of force; and a control unit sensing variation of voltage induced to the sensing coil to calculate coordinates of the input unit when the voltage is changed due to an approach of an input unit.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ho Yun Cho, Hee Bum Lee, Kyoung Soo Chae, Dong Sik Yoo, Yun Ki Hong
  • Patent number: 8890828
    Abstract: Disclosed herein is a digitizer including: an input unit having a magnetic field shielding part embedded therein; a driving coil supplied with current to induce a magnetic line of force; a sensing coil to which voltage is induced by the magnetic line of force; and a control unit supplying current to the driving coil and measuring voltage induced to the sensing coil, wherein the control unit senses variation of voltage induced to the sensing coil to calculate coordinates of the input unit when the voltage induced to the sensing coil is changed by the magnetic field shielding part.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: November 18, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Dong Sik Yoo, Kyoung Soo Chae, Hee Bum Lee, Ho Yun Cho, Yun Ki Hong
  • Patent number: 8841594
    Abstract: Disclosed are a ramp signal generator and an image sensor. The ramp signal generator includes: a comparator comparing a first bias voltage input to a first input terminal and a second bias voltage input to a second input terminal and outputting a ramp signal from an output terminal; a ramp signal adjustment unit including a plurality of switched capacitors made up of switches and capacitors connected in series, and connected in parallel between a first input terminal of the comparator and an output terminal of the comparator; and a controller switching the switches of the plurality of switched capacitors to adjust the ramp signal output from the comparator such that the ramp signal becomes nonlinear over time.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 23, 2014
    Assignee: SK Hynix Inc.
    Inventor: Hee Bum Lee
  • Publication number: 20140253822
    Abstract: Disclosed herein is a display device including a touch panel including: a touch panel including a window substrate and an electrode pattern formed on one surface of the window substrate and a display unit bonded to one surface of the touch panel, wherein a stopper is formed in a spaced space between the display unit and the electrode pattern facing each other.
    Type: Application
    Filed: June 19, 2013
    Publication date: September 11, 2014
    Inventors: Yun Ki Hong, Kyoung Soo Chae, Dong Sik Yoo, Ho Yun Cho, Hee Bum Lee, Jang Ho Park
  • Publication number: 20140176486
    Abstract: Disclosed herein are a touch screen and a method for driving the same. The touch screen includes: a switching unit including a plurality of switches connected to traces of driving lines and sensing lines of the touch screen, respectively; a sensing unit sensing capacitance and electromagnetic resonance (EMR) according to a switching operation of the switching unit; and a main controlling unit controlling the switching operation of the switching unit according to an operation mode of the touch screen. Therefore, it is possible to improve sensitivity of sensing without increasing a bezel region of the touch screen. In addition, the EMR and the capacitance may be sensed using the same trace structure, and an antenna pattern may be formed and operated as an antenna.
    Type: Application
    Filed: March 17, 2013
    Publication date: June 26, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hee Bum Lee, Dong Sik Yoo, Ho Yun Cho, Jae Hyuk Jang, Yun Ki Hong, Kyoung Soo Chae