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).
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Patent number: 9318890Abstract: 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: GrantFiled: April 1, 2013Date of Patent: April 19, 2016Assignee: HIDEEP INC.Inventors: Bonkee Kim, Youngho Cho, Donggu Im, Bumkyum Kim
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Patent number: 9240161Abstract: 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: GrantFiled: July 18, 2013Date of Patent: January 19, 2016Assignee: Samsung Electronics Co., Ltd.Inventor: Youngho Cho
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Patent number: 9239632Abstract: 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: GrantFiled: February 14, 2013Date of Patent: January 19, 2016Assignee: Samsung Electronics Co., Ltd.Inventor: Youngho Cho
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Publication number: 20150338965Abstract: 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: ApplicationFiled: August 4, 2015Publication date: November 26, 2015Inventor: Youngho Cho
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Publication number: 20150293626Abstract: 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: ApplicationFiled: April 10, 2015Publication date: October 15, 2015Inventor: Youngho Cho
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Publication number: 20150169216Abstract: 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: ApplicationFiled: December 15, 2014Publication date: June 18, 2015Inventor: Youngho Cho
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Publication number: 20150116167Abstract: 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: ApplicationFiled: October 27, 2014Publication date: April 30, 2015Inventors: Bumkyum KIM, Taeyeop LEE, Youngho CHO, Bonkee KIM
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Patent number: 8963583Abstract: 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: GrantFiled: February 20, 2014Date of Patent: February 24, 2015Assignee: HiDeep Inc.Inventors: Donggu Im, Seunghyun Park, Bonkee Kim, Youngho Cho
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Patent number: 8841959Abstract: 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: GrantFiled: March 12, 2013Date of Patent: September 23, 2014Assignee: HiDeep Inc.Inventors: Seyeob Kim, Youngho Cho, Bonkee Kim
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Publication number: 20140240002Abstract: 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: ApplicationFiled: February 20, 2014Publication date: August 28, 2014Applicant: HiDeep IncInventors: Donggu IM, Seunghyun Park, Bonkee Kim, Youngho Cho
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Publication number: 20140055191Abstract: 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: ApplicationFiled: August 21, 2013Publication date: February 27, 2014Applicant: HiDeep IncInventors: Bonkee Kim, Youngho Cho, Donggu Im, Bumkyum Kim
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Publication number: 20140021868Abstract: 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: ApplicationFiled: July 18, 2013Publication date: January 23, 2014Inventor: Youngho CHO
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Publication number: 20140002208Abstract: 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: ApplicationFiled: August 29, 2013Publication date: January 2, 2014Applicant: HiDeep IncInventors: Bonkee KIM, Youngho CHO, Donggu IM, Bumkyum KIM
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Publication number: 20130321328Abstract: 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: ApplicationFiled: May 9, 2013Publication date: December 5, 2013Applicant: Samsung Electronics Co. Ltd.Inventors: Juhyun AHN, Youngho CHO
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Publication number: 20130257558Abstract: 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: ApplicationFiled: March 29, 2013Publication date: October 3, 2013Applicant: HiDeep IncInventors: Bonkee KIM, Youngho CHO, Donggu IM, Bumkyum KIM
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Publication number: 20130258535Abstract: 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: ApplicationFiled: April 1, 2013Publication date: October 3, 2013Applicant: HiDeep Inc.Inventors: Bonkee KIM, Youngho CHO, Donggu IM, Bumkyum KIM
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Publication number: 20130257526Abstract: 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: ApplicationFiled: March 12, 2013Publication date: October 3, 2013Applicant: HiDeep Inc.Inventors: Seyeob KIM, Youngho CHO, Bonkee KIM
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Publication number: 20120326734Abstract: 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: ApplicationFiled: June 25, 2012Publication date: December 27, 2012Inventors: Youngho Cho, Bonkee Kim
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Patent number: 7400192Abstract: A low noise amplifier (LNA), and more particularly, to a LNA capable of making gain variable is provided. The variable gain LNA comprises a selection unit comprising a first selection cell, a second selection cell, and a third selection cell for selectively transmitting an input signal to an amplification unit to select one of the first to third selection cells in accordance with the magnitude of the input signal and an amplification unit comprising a first amplification cell for amplifying a signal applied from the first selection cell to a first gain mode and outputting, a second amplification cell for amplifying a signal applied from the second selection cell to a second gain and outputting, and a third amplification cell for amplifying a signal applied from the third selection cell to a third gain mode and outputting.Type: GrantFiled: March 28, 2006Date of Patent: July 15, 2008Assignee: Integrant Technologies Inc.Inventors: Youngho Cho, Bonkee Kim, Seong-Ho Park
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Publication number: 20060220736Abstract: A low noise amplifier (LNA), and more particularly, to a LNA capable of making gain variable is provided. The variable gain LNA comprises a selection unit comprising a first selection cell, a second selection cell, and a third selection cell for selectively transmitting an input signal to an amplification unit to select one of the first to third selection cells in accordance with the magnitude of the input signal and an amplification unit comprising a first amplification cell for amplifying a signal applied from the first selection cell to a first gain mode and outputting, a second amplification cell for amplifying a signal applied from the second selection cell to a second gain and outputting, and a third amplification cell for amplifying a signal applied from the third selection cell to a third gain mode and outputting.Type: ApplicationFiled: March 28, 2006Publication date: October 5, 2006Inventors: Youngho Cho, Bonkee Kim, Seong-Ho Park