Patents by Inventor Youngho Cho

Youngho Cho 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: 9712132
    Abstract: Disclosed is a tunable capacitor. The tunable capacitor according to a first embodiment of the present invention includes: a variable capacitor unit placed between a first terminal and a second terminal; and a bypass switch which on/off controls a bypass connection between the first terminal and the second terminal, wherein the variable capacitor unit and the bypass switch are integrated on one semiconductor die or on one module. The tunable capacitor according to a second embodiment of the present invention includes: a variable capacitor unit placed between a first terminal and a second terminal; an impedance tuner placed between aground terminal and either the first terminal or the second terminal; and a tuning switch which on/off controls the connection between the variable capacitor unit and an impedance tuner, wherein the variable capacitor unit, the impedance tuner and the tuning switch are integrated on one semiconductor die or on one module.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: July 18, 2017
    Assignee: HiDeep Inc.
    Inventors: Bonkee Kim, Youngho Cho, Donggu Im, Bumkyum Kim
  • Patent number: 9632643
    Abstract: A touch input device may be provided that includes: a touch sensor panel including a plurality of drive electrodes, a plurality of receiving electrodes and a plurality of node capacitors formed by the drive electrode and the receiving electrode; a driving part applying a driving signal to the drive electrode; a detector including a receiver which receives a signal including information on a capacitance of the node capacitor through the receiving electrode and integrates the signal; and an input capacitor connected between the receiver and the receiving electrode.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: April 25, 2017
    Assignee: HiDeep Inc.
    Inventor: Youngho Cho
  • Patent number: 9535530
    Abstract: Disclosed is a capacitance sensor including: a capacitance-voltage/current converter which converts a capacitance value of a sense capacitor into a voltage signal or a current signal by using an input signal; a multiplier which applies a weight to an output signal of the capacitance-voltage/current converter and outputs the weighted output signal; and an accumulator which accumulates continuously the output signal of the multiplier.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: January 3, 2017
    Assignee: HIDEEP INC.
    Inventors: Youngho Cho, Bonkee Kim
  • Patent number: 9520854
    Abstract: Disclosed is a tunable capacitor. The tunable capacitor according to a first embodiment of the present invention includes: a first capacitor; and a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal, wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L. The tunable capacitor according to a second embodiment of the present invention includes: a first capacitor; and a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal, wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L, and wherein the tunable capacitor is integrated on one semiconductor die or on one module.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: December 13, 2016
    Assignee: HiDeep Inc.
    Inventors: Bonkee Kim, Youngho Cho, Donggu Im, Bumkyum Kim
  • Patent number: 9318890
    Abstract: Disclosed is a tunable capacitor which includes: a variable capacitor unit placed between a first terminal and a second terminal; and an ESD protection circuit which is inserted either between the first terminal and a ground terminal or between the second terminal and the ground terminal, or is inserted both between the first terminal and a ground terminal and between the second terminal and the ground terminal.
    Type: Grant
    Filed: April 1, 2013
    Date of Patent: April 19, 2016
    Assignee: HIDEEP INC.
    Inventors: Bonkee Kim, Youngho Cho, Donggu Im, Bumkyum Kim
  • Patent number: 9240161
    Abstract: A system and method that adjusts a screen brightness of a display, considering an ambient illumination state, are provided. The method includes receiving a signal, corresponding to an event related to an illumination state alteration, from a sensor, confirming the event, and adjusting, if the event is confirmed, a screen brightness of a display unit in accordance with the event.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: January 19, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Youngho Cho
  • Patent number: 9239632
    Abstract: A method of selectively operating a rotation function of an electronic device permits selective rotation of a display screen rotation function such that a terminal operation according to a user request may be supported while processing a user function may be performed based on the rotation function as needed. The method includes a receiving step of receiving a request to activate a specific user function, an application determination step of determining whether the rotation function applies to the specific user function of which activation is requested, a direction determining step of determining a rotation direction of a terminal when the specific user function is set to be applied with the rotation function, and an applying step of applying the rotation function to the specific user function according to the rotation direction of the terminal.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: January 19, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Youngho Cho
  • Publication number: 20150338965
    Abstract: A touch input device may be provided that includes: a touch sensor panel including a plurality of drive electrodes, a plurality of receiving electrodes and a plurality of node capacitors formed by the drive electrode and the receiving electrode; a driving part applying a driving signal to the drive electrode; a detector including a receiver which receives a signal including information on a capacitance of the node capacitor through the receiving electrode and integrates the signal; and an input capacitor connected between the receiver and the receiving electrode.
    Type: Application
    Filed: August 4, 2015
    Publication date: November 26, 2015
    Inventor: Youngho Cho
  • Publication number: 20150293626
    Abstract: A touch input device may be provided that includes: a touch sensor panel including a plurality of drive electrodes, a plurality of receiving electrodes and a plurality of node capacitors formed by the drive electrode and the receiving electrode; a driving part applying a driving signal to the drive electrode; a detector including a receiver which receives a signal including information on a capacitance of the node capacitor through the receiving electrode and integrates the signal; and an input capacitor connected between the receiver and the receiving electrode.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 15, 2015
    Inventor: Youngho Cho
  • Publication number: 20150169216
    Abstract: Disclosed is a method of controlling a screen of a portable electronic device, including detecting touch gestures simultaneously input for a plurality of objects displayed on a touch screen, configuring a plurality of windows based on the detected touch gestures, and displaying function execution screens corresponding to the plurality of objects through the plurality of configured windows.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 18, 2015
    Inventor: Youngho Cho
  • Publication number: 20150116167
    Abstract: An antenna apparatus may be provided that includes: a radiating metal; a ground which is connected to the radiating metal; a first impedance which forms a first path by being connected between the radiating metal and the ground, has an impedance value which is changed depending on a frequency, and opens the first path in response to a predetermined frequency, and a second impedance which forms a second path parallel with the first path by being connected between the radiating metal and the ground, has an impedance value which is changed depending on a frequency, and short-circuits the second path in response to the predetermined frequency.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Bumkyum KIM, Taeyeop LEE, Youngho CHO, Bonkee KIM
  • Patent number: 8963583
    Abstract: Disclosed is a voltage level converter that includes: a first conversion unit which receives at least one input signal of a logic 1 signal and a logic 0 signal from a signal input terminal and converts the signal; a second conversion unit and a third conversion unit which alternately output a logic ?1 signal and the logic 1 signal respectively in accordance with the input signal; a fourth conversion unit and a fifth conversion unit which alternately output the logic ?1 signal and the logic 0 signal respectively in accordance with the input signal; and a latch which has a complementary characteristic in which if a first transistor becomes an on-state, then a second transistor becomes an off-state in accordance with the input signal, and performs a positive feedback operation. A drain output of the first transistor is input to the fourth conversion unit. A drain output of the second transistor is input to the fifth conversion unit.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: February 24, 2015
    Assignee: HiDeep Inc.
    Inventors: Donggu Im, Seunghyun Park, Bonkee Kim, Youngho Cho
  • Patent number: 8841959
    Abstract: Disclosed is a noise removing circuit including: a voltage booster which boosts an input signal; and a regulator which receives an output signal of the voltage booster and reduces the signal's voltage higher than a specific value to the signal's voltage having the specific value and then outputs the signal.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: September 23, 2014
    Assignee: HiDeep Inc.
    Inventors: Seyeob Kim, Youngho Cho, Bonkee Kim
  • Publication number: 20140240002
    Abstract: Disclosed is a voltage level converter that includes: a first conversion unit which receives at least one input signal of a logic 1 signal and a logic 0 signal from a signal input terminal and converts the signal; a second conversion unit and a third conversion unit which alternately output a logic ?1 signal and the logic 1 signal respectively in accordance with the input signal; a fourth conversion unit and a fifth conversion unit which alternately output the logic ?1 signal and the logic 0 signal respectively in accordance with the input signal; and a latch which has a complementary characteristic in which if a first transistor becomes an on-state, then a second transistor becomes an off-state in accordance with the input signal, and performs a positive feedback operation. A drain output of the first transistor is input to the fourth conversion unit. A drain output of the second transistor is input to the fifth conversion unit.
    Type: Application
    Filed: February 20, 2014
    Publication date: August 28, 2014
    Applicant: HiDeep Inc
    Inventors: Donggu IM, Seunghyun Park, Bonkee Kim, Youngho Cho
  • Publication number: 20140055191
    Abstract: Disclosed is a low power RF switch, and more particularly, disclosed is a low power RF switch which does not use a negative voltage when being driven. The low power RF switch includes: a switch unit which including a transistor which receives a high (H) control signal or a low (L) control signal and switches a signal flowing from one end to the other end thereof; a first voltage maintenance unit maintaining a constant voltage to one end of the transistor; and a second voltage maintenance unit maintaining a constant voltage to the other end of the transistor.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 27, 2014
    Applicant: HiDeep Inc
    Inventors: Bonkee Kim, Youngho Cho, Donggu Im, Bumkyum Kim
  • Publication number: 20140021868
    Abstract: A system and method that adjusts a screen brightness of a display, considering an ambient illumination state, are provided. The method includes receiving a signal, corresponding to an event related to an illumination state alteration, from a sensor, confirming the event, and adjusting, if the event is confirmed, a screen brightness of a display unit in accordance with the event.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Inventor: Youngho CHO
  • Publication number: 20140002208
    Abstract: Disclosed is a tunable capacitor. The tunable capacitor according to a first embodiment of the present invention includes: a first capacitor; and a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal, wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L. The tunable capacitor according to a second embodiment of the present invention includes: a first capacitor; and a switching transistor which switches on/off the connection of the first capacitor between the first terminal and the second terminal, wherein an on/off operation of the switching transistor is performed by a high signal H and a low signal L, and wherein the tunable capacitor is integrated on one semiconductor die or on one module.
    Type: Application
    Filed: August 29, 2013
    Publication date: January 2, 2014
    Applicant: HiDeep Inc
    Inventors: Bonkee KIM, Youngho CHO, Donggu IM, Bumkyum KIM
  • Publication number: 20130321328
    Abstract: A method of correcting touch input in a terminal is provided. The method includes detecting touched locations of a pen and a hand when a pen touch is input, determining a rotation direction of the terminal and a pen use type of a user by comparing and analyzing the detected touched location of the pen and the hand, and determining a correction value of the pen touch input corresponding to the determined rotation direction and pen use type.
    Type: Application
    Filed: May 9, 2013
    Publication date: December 5, 2013
    Applicant: Samsung Electronics Co. Ltd.
    Inventors: Juhyun AHN, Youngho CHO
  • Publication number: 20130257558
    Abstract: Disclosed is a tunable capacitor. The tunable capacitor according to a first embodiment of the present invention includes: a variable capacitor unit placed between a first terminal and a second terminal; and a bypass switch which on/off controls a bypass connection between the first terminal and the second terminal, wherein the variable capacitor unit and the bypass switch are integrated on one semiconductor die or on one module. The tunable capacitor according to a second embodiment of the present invention includes: a variable capacitor unit placed between a first terminal and a second terminal; an impedance tuner placed between aground terminal and either the first terminal or the second terminal; and a tuning switch which on/off controls the connection between the variable capacitor unit and an impedance tuner, wherein the variable capacitor unit, the impedance tuner and the tuning switch are integrated on one semiconductor die or on one module.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 3, 2013
    Applicant: HiDeep Inc
    Inventors: Bonkee KIM, Youngho CHO, Donggu IM, Bumkyum KIM
  • Publication number: 20130258535
    Abstract: Disclosed is a tunable capacitor which includes: a variable capacitor unit placed between a first terminal and a second terminal; and an ESD protection circuit which is inserted either between the first terminal and a ground terminal or between the second terminal and the ground terminal, or is inserted both between the first terminal and a ground terminal and between the second terminal and the ground terminal.
    Type: Application
    Filed: April 1, 2013
    Publication date: October 3, 2013
    Applicant: HiDeep Inc.
    Inventors: Bonkee KIM, Youngho CHO, Donggu IM, Bumkyum KIM